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136 files changed, 9802 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index eb9c9e10be..30ed6d2394 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +1999-12-29 Ulrich Drepper <drepper@cygnus.com> + + * soft-fp/*: Tons of new files to implement floating-point arithmetic + in software. + Contributed by Richard Henderson, Jakub Jelinek and others. + 1999-12-29 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/alpha/sys/io.h: Don't include diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog index 994f7e610f..47ba65529d 100644 --- a/linuxthreads/ChangeLog +++ b/linuxthreads/ChangeLog @@ -1,3 +1,7 @@ +1999-12-29 Andreas Jaeger <aj@suse.de> + + * sysdeps/pthread/pthread.h: Fix typos, reformat comments. + 1999-12-28 Ulrich Drepper <drepper@cygnus.com> * sysdeps/alpha/pt-machine.h: Move stack_pointer definition to the diff --git a/soft-fp/Banner b/soft-fp/Banner new file mode 100644 index 0000000000..940395cfe3 --- /dev/null +++ b/soft-fp/Banner @@ -0,0 +1 @@ +software FPU emulation by Richard Henderson, Jakub Jelinek and others diff --git a/soft-fp/ChangeLog b/soft-fp/ChangeLog new file mode 100644 index 0000000000..f4e8bea5ee --- /dev/null +++ b/soft-fp/ChangeLog @@ -0,0 +1,135 @@ +1999-10-29 Jakub Jelinek <jakub@redhat.com> + + * Makefile: New file. + * adddf3.c: New file. + * addsf3.c: New file. + * addtf3.c: New file. + * divdf3.c: New file. + * divsf3.c: New file. + * divtf3.c: New file. + * double.h: New file. + * eqdf2.c: New file. + * eqsf2.c: New file. + * eqtf2.c: New file. + * extenddftf2.c: New file. + * extendsfdf2.c: New file. + * extendsftf2.c: New file. + * fixdfdi.c: New file. + * fixdfsi.c: New file. + * fixsfdi.c: New file. + * fixsfsi.c: New file. + * fixtfdi.c: New file. + * fixtfsi.c: New file. + * fixunsdfdi.c: New file. + * fixunsdfsi.c: New file. + * fixunssfdi.c: New file. + * fixunssfsi.c: New file. + * fixunstfdi.c: New file. + * fixunstfsi.c: New file. + * floatdidf.c: New file. + * floatdisf.c: New file. + * floatditf.c: New file. + * floatsidf.c: New file. + * floatsisf.c: New file. + * floatsitf.c: New file. + * gedf2.c: New file. + * gesf2.c: New file. + * getf2.c: New file. + * ledf2.c: New file. + * lesf2.c: New file. + * letf2.c: New file. + * muldf3.c: New file. + * mulsf3.c: New file. + * multf3.c: New file. + * negdf2.c: New file. + * negsf2.c: New file. + * negtf2.c: New file. + * op-1.h: New file. + * op-2.h: New file. + * op-4.h: New file. + * op-common.h: New file. + * quad.h: New file. + * single.h: New file. + * soft-fp.h: New file. + * subdf3.c: New file. + * subsf3.c: New file. + * subtf3.c: New file. + * testit.c: New file. + * truncdfsf2.c: New file. + * trunctfdf2.c: New file. + * trunctfsf2.c: New file. + * Banner: New file. + * configure: New file. + * op-8.h: New file. + * sqrtdf2.c: New file. + * extended.h: New file. + * sqrtsf2.c: New file. + * sqrttf2.c: New file. + * sysdeps/i386/sfp-machine.h: New file. + * sysdeps/alpha/sfp-machine.h: New file. + * sysdeps/sparc/sparc64/sfp-machine.h: New file. + * sysdeps/sparc/sparc64/Makefile: New file. + * sysdeps/sparc/sparc64/qp_qtoux.c: New file. + * sysdeps/sparc/sparc64/qp_add.c: New file. + * sysdeps/sparc/sparc64/qp_div.c: New file. + * sysdeps/sparc/sparc64/qp_dtoq.c: New file. + * sysdeps/sparc/sparc64/qp_feq.c: New file. + * sysdeps/sparc/sparc64/qp_fge.c: New file. + * sysdeps/sparc/sparc64/qp_fle.c: New file. + * sysdeps/sparc/sparc64/qp_itoq.c: New file. + * sysdeps/sparc/sparc64/qp_mul.c: New file. + * sysdeps/sparc/sparc64/qp_qtod.c: New file. + * sysdeps/sparc/sparc64/qp_qtoi.c: New file. + * sysdeps/sparc/sparc64/qp_qtos.c: New file. + * sysdeps/sparc/sparc64/Versions: New file. + * sysdeps/sparc/sparc64/qp_stoq.c: New file. + * sysdeps/sparc/sparc64/qp_sub.c: New file. + * sysdeps/sparc/sparc64/qp_fne.c: New file. + * sysdeps/sparc/sparc64/qp_cmp.c: New file. + * sysdeps/sparc/sparc64/qp_uxtoq.c: New file. + * sysdeps/sparc/sparc64/qp_fgt.c: New file. + * sysdeps/sparc/sparc64/qp_cmpe.c: New file. + * sysdeps/sparc/sparc64/s_frexpl.c: New file. + * sysdeps/sparc/sparc64/qp_qtox.c: New file. + * sysdeps/sparc/sparc64/qp_flt.c: New file. + * sysdeps/sparc/sparc64/qp_xtoq.c: New file. + * sysdeps/sparc/sparc64/qp_sqrt.c: New file. + * sysdeps/sparc/sparc64/s_ilogbl.c: New file. + * sysdeps/sparc/sparc64/s_scalblnl.c: New file. + * sysdeps/sparc/sparc64/s_scalbnl.c: New file. + * sysdeps/sparc/sparc64/qp_util.c: New file. + * sysdeps/sparc/sparc64/qp_neg.S: New file. + * sysdeps/sparc/sparc64/qp_uitoq.c: New file. + * sysdeps/sparc/sparc64/qp_qtoui.c: New file. + * sysdeps/sparc/sparc32/sfp-machine.h: New file. + * sysdeps/sparc/sparc32/Makefile: New file. + * sysdeps/sparc/sparc32/q_qtox.c: New file. + * sysdeps/sparc/sparc32/q_cmp.c: New file. + * sysdeps/sparc/sparc32/q_dtoq.c: New file. + * sysdeps/sparc/sparc32/q_feq.c: New file. + * sysdeps/sparc/sparc32/q_fge.c: New file. + * sysdeps/sparc/sparc32/q_fgt.c: New file. + * sysdeps/sparc/sparc32/q_flt.c: New file. + * sysdeps/sparc/sparc32/q_mul.c: New file. + * sysdeps/sparc/sparc32/q_neg.c: New file. + * sysdeps/sparc/sparc32/q_qtod.c: New file. + * sysdeps/sparc/sparc32/q_qtoi.c: New file. + * sysdeps/sparc/sparc32/q_qtos.c: New file. + * sysdeps/sparc/sparc32/q_qtoui.c: New file. + * sysdeps/sparc/sparc32/q_sqrt.c: New file. + * sysdeps/sparc/sparc32/q_sub.c: New file. + * sysdeps/sparc/sparc32/q_uitoq.c: New file. + * sysdeps/sparc/sparc32/q_itoq.c: New file. + * sysdeps/sparc/sparc32/q_cmpe.c: New file. + * sysdeps/sparc/sparc32/q_xtoq.c: New file. + * sysdeps/sparc/sparc32/q_fle.c: New file. + * sysdeps/sparc/sparc32/q_div.c: New file. + * sysdeps/sparc/sparc32/q_stoq.c: New file. + * sysdeps/sparc/sparc32/q_fne.c: New file. + * sysdeps/sparc/sparc32/q_uxtoq.c: New file. + * sysdeps/sparc/sparc32/q_util.c: New file. + * sysdeps/sparc/sparc32/q_qtoux.c: New file. + * sysdeps/sparc/sparc32/q_add.c: New file. + * sysdeps/mips/sfp-machine.h: New file. + * sysdeps/mips/mips64/sfp-machine.h: New file. + * sysdeps/powerpc/sfp-machine.h: New file. diff --git a/soft-fp/Makefile b/soft-fp/Makefile new file mode 100644 index 0000000000..e72e7f2976 --- /dev/null +++ b/soft-fp/Makefile @@ -0,0 +1,40 @@ +# Copyright (C) 1997, 1999 Free Software Foundation, Inc. +# This file is part of the GNU C Library. +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Library General Public License as +# published by the Free Software Foundation; either version 2 of the +# License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Library General Public License for more details. +# +# You should have received a copy of the GNU Library General Public +# License along with the GNU C Library; see the file COPYING.LIB. If not, +# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +# Boston, MA 02111-1307, USA. + +# +# Makefile for software floating-point routines +# +subdir := soft-fp + +gcc-single-routines := negsf2 addsf3 subsf3 mulsf3 divsf3 eqsf2 \ + lesf2 gesf2 fixsfsi fixunssfsi floatsisf fixsfdi \ + fixunssfdi floatdisf sqrtsf2 + +gcc-double-routines := negdf2 adddf3 subdf3 muldf3 divdf3 eqdf2 \ + ledf2 gedf2 fixdfsi fixunsdfsi floatsidf fixdfdi \ + fixunsdfdi floatdidf extendsfdf2 truncdfsf2 sqrtdf2 + +gcc-quad-routines := negtf2 addtf3 subtf3 multf3 divtf3 eqtf2 \ + letf2 getf2 fixtfsi fixunstfsi floatsitf fixtfdi \ + fixunstfdi floatditf extendsftf2 trunctfsf2 extenddftf2 \ + trunctfdf2 sqrttf2 + +distribute := double.h op-1.h op-2.h op-4.h op-common.h quad.h \ + single.h soft-fp.h extended.h + +include ../Rules diff --git a/soft-fp/adddf3.c b/soft-fp/adddf3.c new file mode 100644 index 0000000000..373bbb198f --- /dev/null +++ b/soft-fp/adddf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a + b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +double __adddf3(double a, double b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); + FP_UNPACK_D(B, b); + FP_ADD_D(R, A, B); + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/addsf3.c b/soft-fp/addsf3.c new file mode 100644 index 0000000000..6ee36c5077 --- /dev/null +++ b/soft-fp/addsf3.c @@ -0,0 +1,41 @@ +/* Software floating-point emulation. + Return a + b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +float __addsf3(float a, float b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); + FP_UNPACK_S(B, b); + FP_ADD_S(R, A, B); + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} + diff --git a/soft-fp/addtf3.c b/soft-fp/addtf3.c new file mode 100644 index 0000000000..5919df1abe --- /dev/null +++ b/soft-fp/addtf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a + b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double __addtf3(long double a, long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(R); + long double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_ADD_Q(R, A, B); + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/configure b/soft-fp/configure new file mode 100755 index 0000000000..d40d2d7ba2 --- /dev/null +++ b/soft-fp/configure @@ -0,0 +1,2 @@ +# This is only to keep the GNU C library configure mechanism happy. +exit 0 diff --git a/soft-fp/divdf3.c b/soft-fp/divdf3.c new file mode 100644 index 0000000000..f0bbbfdf50 --- /dev/null +++ b/soft-fp/divdf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a / b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +double __divdf3(double a, double b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); + FP_UNPACK_D(B, b); + FP_DIV_D(R, A, B); + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/divsf3.c b/soft-fp/divsf3.c new file mode 100644 index 0000000000..37d691b140 --- /dev/null +++ b/soft-fp/divsf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a / b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +float __divsf3(float a, float b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); + FP_UNPACK_S(B, b); + FP_DIV_S(R, A, B); + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/divtf3.c b/soft-fp/divtf3.c new file mode 100644 index 0000000000..dfc4c01cb3 --- /dev/null +++ b/soft-fp/divtf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a / b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double __divtf3(long double a, long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(R); + long double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_DIV_Q(R, A, B); + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/double.h b/soft-fp/double.h new file mode 100644 index 0000000000..ee581c2da4 --- /dev/null +++ b/soft-fp/double.h @@ -0,0 +1,197 @@ +/* Software floating-point emulation. + Definitions for IEEE Double Precision + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if _FP_W_TYPE_SIZE < 32 +#error "Here's a nickel kid. Go buy yourself a real computer." +#endif + +#if _FP_W_TYPE_SIZE < 64 +#define _FP_FRACTBITS_D (2 * _FP_W_TYPE_SIZE) +#else +#define _FP_FRACTBITS_D _FP_W_TYPE_SIZE +#endif + +#define _FP_FRACBITS_D 53 +#define _FP_FRACXBITS_D (_FP_FRACTBITS_D - _FP_FRACBITS_D) +#define _FP_WFRACBITS_D (_FP_WORKBITS + _FP_FRACBITS_D) +#define _FP_WFRACXBITS_D (_FP_FRACTBITS_D - _FP_WFRACBITS_D) +#define _FP_EXPBITS_D 11 +#define _FP_EXPBIAS_D 1023 +#define _FP_EXPMAX_D 2047 + +#define _FP_QNANBIT_D \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-2) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_D \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_D-1) % _FP_W_TYPE_SIZE) +#define _FP_OVERFLOW_D \ + ((_FP_W_TYPE)1 << _FP_WFRACBITS_D % _FP_W_TYPE_SIZE) + +#if _FP_W_TYPE_SIZE < 64 + +union _FP_UNION_D +{ + double flt; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_D; + unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE; + unsigned frac0 : _FP_W_TYPE_SIZE; +#else + unsigned frac0 : _FP_W_TYPE_SIZE; + unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE; + unsigned exp : _FP_EXPBITS_D; + unsigned sign : 1; +#endif + } bits __attribute__((packed)); +}; + +#define FP_DECL_D(X) _FP_DECL(2,X) +#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_2(D,X,val) +#define FP_UNPACK_RAW_DP(X,val) _FP_UNPACK_RAW_2_P(D,X,val) +#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_2(D,val,X) +#define FP_PACK_RAW_DP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(D,val,X); \ + } while (0) + +#define FP_UNPACK_D(X,val) \ + do { \ + _FP_UNPACK_RAW_2(D,X,val); \ + _FP_UNPACK_CANONICAL(D,2,X); \ + } while (0) + +#define FP_UNPACK_DP(X,val) \ + do { \ + _FP_UNPACK_RAW_2_P(D,X,val); \ + _FP_UNPACK_CANONICAL(D,2,X); \ + } while (0) + +#define FP_PACK_D(val,X) \ + do { \ + _FP_PACK_CANONICAL(D,2,X); \ + _FP_PACK_RAW_2(D,val,X); \ + } while (0) + +#define FP_PACK_DP(val,X) \ + do { \ + _FP_PACK_CANONICAL(D,2,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(D,val,X); \ + } while (0) + +#define FP_ISSIGNAN_D(X) _FP_ISSIGNAN(D,2,X) +#define FP_NEG_D(R,X) _FP_NEG(D,2,R,X) +#define FP_ADD_D(R,X,Y) _FP_ADD(D,2,R,X,Y) +#define FP_SUB_D(R,X,Y) _FP_SUB(D,2,R,X,Y) +#define FP_MUL_D(R,X,Y) _FP_MUL(D,2,R,X,Y) +#define FP_DIV_D(R,X,Y) _FP_DIV(D,2,R,X,Y) +#define FP_SQRT_D(R,X) _FP_SQRT(D,2,R,X) +#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q) + +#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,2,r,X,Y,un) +#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,2,r,X,Y) + +#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,2,r,X,rsz,rsg) +#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,2,X,r,rs,rt) + +#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_2(X) +#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_2(X) + +#else + +union _FP_UNION_D +{ + double flt; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_D; + unsigned long frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0); +#else + unsigned long frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0); + unsigned exp : _FP_EXPBITS_D; + unsigned sign : 1; +#endif + } bits __attribute__((packed)); +}; + +#define FP_DECL_D(X) _FP_DECL(1,X) +#define FP_UNPACK_RAW_D(X,val) _FP_UNPACK_RAW_1(D,X,val) +#define FP_UNPACK_RAW_DP(X,val) _FP_UNPACK_RAW_1_P(D,X,val) +#define FP_PACK_RAW_D(val,X) _FP_PACK_RAW_1(D,val,X) +#define FP_PACK_RAW_DP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(D,val,X); \ + } while (0) + +#define FP_UNPACK_D(X,val) \ + do { \ + _FP_UNPACK_RAW_1(D,X,val); \ + _FP_UNPACK_CANONICAL(D,1,X); \ + } while (0) + +#define FP_UNPACK_DP(X,val) \ + do { \ + _FP_UNPACK_RAW_1_P(D,X,val); \ + _FP_UNPACK_CANONICAL(D,1,X); \ + } while (0) + +#define FP_PACK_D(val,X) \ + do { \ + _FP_PACK_CANONICAL(D,1,X); \ + _FP_PACK_RAW_1(D,val,X); \ + } while (0) + +#define FP_PACK_DP(val,X) \ + do { \ + _FP_PACK_CANONICAL(D,1,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(D,val,X); \ + } while (0) + +#define FP_ISSIGNAN_D(X) _FP_ISSIGNAN(D,1,X) +#define FP_NEG_D(R,X) _FP_NEG(D,1,R,X) +#define FP_ADD_D(R,X,Y) _FP_ADD(D,1,R,X,Y) +#define FP_SUB_D(R,X,Y) _FP_SUB(D,1,R,X,Y) +#define FP_MUL_D(R,X,Y) _FP_MUL(D,1,R,X,Y) +#define FP_DIV_D(R,X,Y) _FP_DIV(D,1,R,X,Y) +#define FP_SQRT_D(R,X) _FP_SQRT(D,1,R,X) +#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q) + +/* The implementation of _FP_MUL_D and _FP_DIV_D should be chosen by + the target machine. */ + +#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,1,r,X,Y,un) +#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,1,r,X,Y) + +#define FP_TO_INT_D(r,X,rsz,rsg) _FP_TO_INT(D,1,r,X,rsz,rsg) +#define FP_FROM_INT_D(X,r,rs,rt) _FP_FROM_INT(D,1,X,r,rs,rt) + +#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_1(X) +#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_1(X) + +#endif /* W_TYPE_SIZE < 64 */ diff --git a/soft-fp/eqdf2.c b/soft-fp/eqdf2.c new file mode 100644 index 0000000000..b32b4e1e32 --- /dev/null +++ b/soft-fp/eqdf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 otherwise + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +int __eqdf2(double a, double b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); + int r; + + FP_UNPACK_RAW_D(A, a); + FP_UNPACK_RAW_D(B, b); + FP_CMP_EQ_D(r, A, B); + if (r && (FP_ISSIGNAN_D(A) || FP_ISSIGNAN_D(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__eqdf2, __nedf2); diff --git a/soft-fp/eqsf2.c b/soft-fp/eqsf2.c new file mode 100644 index 0000000000..93373f1695 --- /dev/null +++ b/soft-fp/eqsf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 otherwise + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +int __eqsf2(float a, float b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); + int r; + + FP_UNPACK_RAW_S(A, a); + FP_UNPACK_RAW_S(B, b); + FP_CMP_EQ_S(r, A, B); + if (r && (FP_ISSIGNAN_S(A) || FP_ISSIGNAN_S(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__eqsf2, __nesf2); diff --git a/soft-fp/eqtf2.c b/soft-fp/eqtf2.c new file mode 100644 index 0000000000..7af2f92128 --- /dev/null +++ b/soft-fp/eqtf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 otherwise + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int __eqtf2(long double a, long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_EQ_Q(r, A, B); + if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__eqtf2, __netf2); diff --git a/soft-fp/extenddftf2.c b/soft-fp/extenddftf2.c new file mode 100644 index 0000000000..36a4d49f10 --- /dev/null +++ b/soft-fp/extenddftf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Return a converted to IEEE quad + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +long double __extenddftf2(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_Q(R); + long double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(Q,D,4,2,R,A); +#else + FP_CONV(Q,D,2,1,R,A); +#endif + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/extended.h b/soft-fp/extended.h new file mode 100644 index 0000000000..4a1d7e711c --- /dev/null +++ b/soft-fp/extended.h @@ -0,0 +1,388 @@ +/* Software floating-point emulation. + Definitions for IEEE Extended Precision. + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if _FP_W_TYPE_SIZE < 32 +#error "Here's a nickel, kid. Go buy yourself a real computer." +#endif + +#if _FP_W_TYPE_SIZE < 64 +#define _FP_FRACTBITS_E (4*_FP_W_TYPE_SIZE) +#else +#define _FP_FRACTBITS_E (2*_FP_W_TYPE_SIZE) +#endif + +#define _FP_FRACBITS_E 64 +#define _FP_FRACXBITS_E (_FP_FRACTBITS_E - _FP_FRACBITS_E) +#define _FP_WFRACBITS_E (_FP_WORKBITS + _FP_FRACBITS_E) +#define _FP_WFRACXBITS_E (_FP_FRACTBITS_E - _FP_WFRACBITS_E) +#define _FP_EXPBITS_E 15 +#define _FP_EXPBIAS_E 16383 +#define _FP_EXPMAX_E 32767 + +#define _FP_QNANBIT_E \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-2) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_E \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_E-1) % _FP_W_TYPE_SIZE) +#define _FP_OVERFLOW_E \ + ((_FP_W_TYPE)1 << (_FP_WFRACBITS_E % _FP_W_TYPE_SIZE)) + +#if _FP_W_TYPE_SIZE < 64 + +union _FP_UNION_E +{ + long double flt; + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned long pad1 : _FP_W_TYPE_SIZE; + unsigned long pad2 : (_FP_W_TYPE_SIZE - 1 - _FP_EXPBITS_E); + unsigned long sign : 1; + unsigned long exp : _FP_EXPBITS_E; + unsigned long frac1 : _FP_W_TYPE_SIZE; + unsigned long frac0 : _FP_W_TYPE_SIZE; +#else + unsigned long frac0 : _FP_W_TYPE_SIZE; + unsigned long frac1 : _FP_W_TYPE_SIZE; + unsigned exp : _FP_EXPBITS_E; + unsigned sign : 1; +#endif /* not bigendian */ + } bits __attribute__((packed)); +}; + + +#define FP_DECL_E(X) _FP_DECL(4,X) + +#define FP_UNPACK_RAW_E(X, val) \ + do { \ + union _FP_UNION_E _flo; _flo.flt = (val); \ + \ + X##_f[2] = 0; X##_f[3] = 0; \ + X##_f[0] = _flo.bits.frac0; \ + X##_f[1] = _flo.bits.frac1; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + if (!X##_e && (X##_f[1] || X##_f[0]) \ + && !(X##_f[1] & _FP_IMPLBIT_E)) \ + { \ + X##_e++; \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + } \ + } while (0) + +#define FP_UNPACK_RAW_EP(X, val) \ + do { \ + union _FP_UNION_E *_flo = \ + (union _FP_UNION_E *)(val); \ + \ + X##_f[2] = 0; X##_f[3] = 0; \ + X##_f[0] = _flo->bits.frac0; \ + X##_f[1] = _flo->bits.frac1; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + if (!X##_e && (X##_f[1] || X##_f[0]) \ + && !(X##_f[1] & _FP_IMPLBIT_E)) \ + { \ + X##_e++; \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + } \ + } while (0) + +#define FP_PACK_RAW_E(val, X) \ + do { \ + union _FP_UNION_E _flo; \ + \ + if (X##_e) X##_f[1] |= _FP_IMPLBIT_E; \ + else X##_f[1] &= ~(_FP_IMPLBIT_E); \ + _flo.bits.frac0 = X##_f[0]; \ + _flo.bits.frac1 = X##_f[1]; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + \ + (val) = _flo.flt; \ + } while (0) + +#define FP_PACK_RAW_EP(val, X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + { \ + union _FP_UNION_E *_flo = \ + (union _FP_UNION_E *)(val); \ + \ + if (X##_e) X##_f[1] |= _FP_IMPLBIT_E; \ + else X##_f[1] &= ~(_FP_IMPLBIT_E); \ + _flo->bits.frac0 = X##_f[0]; \ + _flo->bits.frac1 = X##_f[1]; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } \ + } while (0) + +#define FP_UNPACK_E(X,val) \ + do { \ + FP_UNPACK_RAW_E(X,val); \ + _FP_UNPACK_CANONICAL(E,4,X); \ + } while (0) + +#define FP_UNPACK_EP(X,val) \ + do { \ + FP_UNPACK_RAW_2_P(X,val); \ + _FP_UNPACK_CANONICAL(E,4,X); \ + } while (0) + +#define FP_PACK_E(val,X) \ + do { \ + _FP_PACK_CANONICAL(E,4,X); \ + FP_PACK_RAW_E(val,X); \ + } while (0) + +#define FP_PACK_EP(val,X) \ + do { \ + _FP_PACK_CANONICAL(E,4,X); \ + FP_PACK_RAW_EP(val,X); \ + } while (0) + +#define FP_ISSIGNAN_E(X) _FP_ISSIGNAN(E,4,X) +#define FP_NEG_E(R,X) _FP_NEG(E,4,R,X) +#define FP_ADD_E(R,X,Y) _FP_ADD(E,4,R,X,Y) +#define FP_SUB_E(R,X,Y) _FP_SUB(E,4,R,X,Y) +#define FP_MUL_E(R,X,Y) _FP_MUL(E,4,R,X,Y) +#define FP_DIV_E(R,X,Y) _FP_DIV(E,4,R,X,Y) +#define FP_SQRT_E(R,X) _FP_SQRT(E,4,R,X) + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + * This has special _E version because standard _4 square + * root would not work (it has to start normally with the + * second word and not the first), but as we have to do it + * anyway, we optimize it by doing most of the calculations + * in two UWtype registers instead of four. + */ + +#define _FP_SQRT_MEAT_E(R, S, T, X, q) \ + do { \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + _FP_FRAC_SRL_4(X, (_FP_WORKBITS)); \ + while (q) \ + { \ + T##_f[1] = S##_f[1] + q; \ + if (T##_f[1] <= X##_f[1]) \ + { \ + S##_f[1] = T##_f[1] + q; \ + X##_f[1] -= T##_f[1]; \ + R##_f[1] += q; \ + } \ + _FP_FRAC_SLL_2(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q) \ + { \ + T##_f[0] = S##_f[0] + q; \ + T##_f[1] = S##_f[1]; \ + if (T##_f[1] < X##_f[1] || \ + (T##_f[1] == X##_f[1] && \ + T##_f[0] <= X##_f[0])) \ + { \ + S##_f[0] = T##_f[0] + q; \ + S##_f[1] += (T##_f[0] > S##_f[0]); \ + _FP_FRAC_DEC_2(X, T); \ + R##_f[0] += q; \ + } \ + _FP_FRAC_SLL_2(X, 1); \ + q >>= 1; \ + } \ + _FP_FRAC_SLL_4(R, (_FP_WORKBITS)); \ + if (X##_f[0] | X##_f[1]) \ + { \ + if (S##_f[1] < X##_f[1] || \ + (S##_f[1] == X##_f[1] && \ + S##_f[0] < X##_f[0])) \ + R##_f[0] |= _FP_WORK_ROUND; \ + R##_f[0] |= _FP_WORK_STICKY; \ + } \ + } while (0) + +#define FP_CMP_E(r,X,Y,un) _FP_CMP(E,4,r,X,Y,un) +#define FP_CMP_EQ_E(r,X,Y) _FP_CMP_EQ(E,4,r,X,Y) + +#define FP_TO_INT_E(r,X,rsz,rsg) _FP_TO_INT(E,4,r,X,rsz,rsg) +#define FP_FROM_INT_E(X,r,rs,rt) _FP_FROM_INT(E,4,X,r,rs,rt) + +#define _FP_FRAC_HIGH_E(X) (X##_f[2]) +#define _FP_FRAC_HIGH_RAW_E(X) (X##_f[1]) + +#else /* not _FP_W_TYPE_SIZE < 64 */ +union _FP_UNION_E +{ + long double flt /* __attribute__((mode(TF))) */ ; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned long pad : (_FP_W_TYPE_SIZE - 1 - _FP_EXPBITS_E); + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_E; + unsigned long frac : _FP_W_TYPE_SIZE; +#else + unsigned long frac : _FP_W_TYPE_SIZE; + unsigned exp : _FP_EXPBITS_E; + unsigned sign : 1; +#endif + } bits; +}; + +#define FP_DECL_E(X) _FP_DECL(2,X) + +#define FP_UNPACK_RAW_E(X, val) \ + do { \ + union _FP_UNION_E _flo; _flo.flt = (val); \ + \ + X##_f0 = _flo.bits.frac; \ + X##_f1 = 0; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + if (!X##_e && X##_f0 && !(X##_f0 & _FP_IMPLBIT_E)) \ + { \ + X##_e++; \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + } \ + } while (0) + +#define FP_UNPACK_RAW_EP(X, val) \ + do { \ + union _FP_UNION_E *_flo = \ + (union _FP_UNION_E *)(val); \ + \ + X##_f0 = _flo->bits.frac; \ + X##_f1 = 0; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + if (!X##_e && X##_f0 && !(X##_f0 & _FP_IMPLBIT_E)) \ + { \ + X##_e++; \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + } \ + } while (0) + +#define FP_PACK_RAW_E(val, X) \ + do { \ + union _FP_UNION_E _flo; \ + \ + if (X##_e) X##_f0 |= _FP_IMPLBIT_E; \ + else X##_f0 &= ~(_FP_IMPLBIT_E); \ + _flo.bits.frac = X##_f0; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + \ + (val) = _flo.flt; \ + } while (0) + +#define FP_PACK_RAW_EP(fs, val, X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + { \ + union _FP_UNION_E *_flo = \ + (union _FP_UNION_E *)(val); \ + \ + if (X##_e) X##_f0 |= _FP_IMPLBIT_E; \ + else X##_f0 &= ~(_FP_IMPLBIT_E); \ + _flo->bits.frac = X##_f0; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } \ + } while (0) + + +#define FP_UNPACK_E(X,val) \ + do { \ + FP_UNPACK_RAW_E(X,val); \ + _FP_UNPACK_CANONICAL(E,2,X); \ + } while (0) + +#define FP_UNPACK_EP(X,val) \ + do { \ + FP_UNPACK_RAW_EP(X,val); \ + _FP_UNPACK_CANONICAL(E,2,X); \ + } while (0) + +#define FP_PACK_E(val,X) \ + do { \ + _FP_PACK_CANONICAL(E,2,X); \ + FP_PACK_RAW_E(val,X); \ + } while (0) + +#define FP_PACK_EP(val,X) \ + do { \ + _FP_PACK_CANONICAL(E,2,X); \ + FP_PACK_RAW_EP(val,X); \ + } while (0) + +#define FP_ISSIGNAN_E(X) _FP_ISSIGNAN(E,2,X) +#define FP_NEG_E(R,X) _FP_NEG(E,2,R,X) +#define FP_ADD_E(R,X,Y) _FP_ADD(E,2,R,X,Y) +#define FP_SUB_E(R,X,Y) _FP_SUB(E,2,R,X,Y) +#define FP_MUL_E(R,X,Y) _FP_MUL(E,2,R,X,Y) +#define FP_DIV_E(R,X,Y) _FP_DIV(E,2,R,X,Y) +#define FP_SQRT_E(R,X) _FP_SQRT(E,2,R,X) + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + * We optimize it by doing most of the calculations + * in one UWtype registers instead of two, although we don't + * have to. + */ +#define _FP_SQRT_MEAT_E(R, S, T, X, q) \ + do { \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + _FP_FRAC_SRL_2(X, (_FP_WORKBITS)); \ + while (q) \ + { \ + T##_f0 = S##_f0 + q; \ + if (T##_f0 <= X##_f0) \ + { \ + S##_f0 = T##_f0 + q; \ + X##_f0 -= T##_f0; \ + R##_f0 += q; \ + } \ + _FP_FRAC_SLL_1(X, 1); \ + q >>= 1; \ + } \ + _FP_FRAC_SLL_2(R, (_FP_WORKBITS)); \ + if (X##_f0) \ + { \ + if (S##_f0 < X##_f0) \ + R##_f0 |= _FP_WORK_ROUND; \ + R##_f0 |= _FP_WORK_STICKY; \ + } \ + } while (0) + +#define FP_CMP_E(r,X,Y,un) _FP_CMP(E,2,r,X,Y,un) +#define FP_CMP_EQ_E(r,X,Y) _FP_CMP_EQ(E,2,r,X,Y) + +#define FP_TO_INT_E(r,X,rsz,rsg) _FP_TO_INT(E,2,r,X,rsz,rsg) +#define FP_FROM_INT_E(X,r,rs,rt) _FP_FROM_INT(E,2,X,r,rs,rt) + +#define _FP_FRAC_HIGH_E(X) (X##_f1) +#define _FP_FRAC_HIGH_RAW_E(X) (X##_f0) + +#endif /* not _FP_W_TYPE_SIZE < 64 */ diff --git a/soft-fp/extendsfdf2.c b/soft-fp/extendsfdf2.c new file mode 100644 index 0000000000..8e5fefe4e8 --- /dev/null +++ b/soft-fp/extendsfdf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Return a converted to IEEE double + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "double.h" + +double __extendsfdf2(float a) +{ + FP_DECL_EX; + FP_DECL_S(A); + FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + FP_CONV(D,S,2,1,R,A); +#else + FP_CONV(D,S,1,1,R,A); +#endif + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/extendsftf2.c b/soft-fp/extendsftf2.c new file mode 100644 index 0000000000..8902683f14 --- /dev/null +++ b/soft-fp/extendsftf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Return a converted to IEEE quad + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "quad.h" + +long double __extendsftf2(float a) +{ + FP_DECL_EX; + FP_DECL_S(A); + FP_DECL_Q(R); + long double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(Q,S,4,1,R,A); +#else + FP_CONV(Q,S,2,1,R,A); +#endif + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixdfdi.c b/soft-fp/fixdfdi.c new file mode 100644 index 0000000000..5805d972ea --- /dev/null +++ b/soft-fp/fixdfdi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 64bit signed integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +DItype __fixdfdi(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + DItype r; + + FP_UNPACK_D(A, a); + FP_TO_INT_D(r, A, 64, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixdfsi.c b/soft-fp/fixdfsi.c new file mode 100644 index 0000000000..e7dcea8f1b --- /dev/null +++ b/soft-fp/fixdfsi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 32bit signed integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +SItype __fixdfsi(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + SItype r; + + FP_UNPACK_D(A, a); + FP_TO_INT_D(r, A, 32, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixsfdi.c b/soft-fp/fixsfdi.c new file mode 100644 index 0000000000..76ca858c65 --- /dev/null +++ b/soft-fp/fixsfdi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 64bit signed integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +DItype __fixsfdi(float a) +{ + FP_DECL_EX; + FP_DECL_S(A); + DItype r; + + FP_UNPACK_S(A, a); + FP_TO_INT_S(r, A, 64, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixsfsi.c b/soft-fp/fixsfsi.c new file mode 100644 index 0000000000..7e745dc8d4 --- /dev/null +++ b/soft-fp/fixsfsi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 32bit signed integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +SItype __fixsfsi(float a) +{ + FP_DECL_EX; + FP_DECL_S(A); + SItype r; + + FP_UNPACK_S(A, a); + FP_TO_INT_S(r, A, 32, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixtfdi.c b/soft-fp/fixtfdi.c new file mode 100644 index 0000000000..80c2528400 --- /dev/null +++ b/soft-fp/fixtfdi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 64bit signed integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +DItype __fixtfdi(long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + DItype r; + + FP_UNPACK_Q(A, a); + FP_TO_INT_Q(r, A, 64, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixtfsi.c b/soft-fp/fixtfsi.c new file mode 100644 index 0000000000..11eb7d69ca --- /dev/null +++ b/soft-fp/fixtfsi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 32bit signed integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +SItype __fixtfsi(long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + SItype r; + + FP_UNPACK_Q(A, a); + FP_TO_INT_Q(r, A, 32, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixunsdfdi.c b/soft-fp/fixunsdfdi.c new file mode 100644 index 0000000000..92db75c939 --- /dev/null +++ b/soft-fp/fixunsdfdi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 64bit unsigned integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +UDItype __fixunsdfdi(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + UDItype r; + + FP_UNPACK_D(A, a); + FP_TO_INT_D(r, A, 64, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixunsdfsi.c b/soft-fp/fixunsdfsi.c new file mode 100644 index 0000000000..deee666718 --- /dev/null +++ b/soft-fp/fixunsdfsi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 32bit unsigned integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +USItype __fixunsdfsi(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + USItype r; + + FP_UNPACK_D(A, a); + FP_TO_INT_D(r, A, 32, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixunssfdi.c b/soft-fp/fixunssfdi.c new file mode 100644 index 0000000000..de5fc4fa07 --- /dev/null +++ b/soft-fp/fixunssfdi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 64bit unsigned integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +UDItype __fixunssfdi(float a) +{ + FP_DECL_EX; + FP_DECL_S(A); + UDItype r; + + FP_UNPACK_S(A, a); + FP_TO_INT_S(r, A, 64, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixunssfsi.c b/soft-fp/fixunssfsi.c new file mode 100644 index 0000000000..76166fc121 --- /dev/null +++ b/soft-fp/fixunssfsi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 32bit unsigned integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +USItype __fixunssfsi(float a) +{ + FP_DECL_EX; + FP_DECL_S(A); + USItype r; + + FP_UNPACK_S(A, a); + FP_TO_INT_S(r, A, 32, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixunstfdi.c b/soft-fp/fixunstfdi.c new file mode 100644 index 0000000000..c48580b1aa --- /dev/null +++ b/soft-fp/fixunstfdi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 64bit unsigned integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +UDItype __fixunstfdi(long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + UDItype r; + + FP_UNPACK_Q(A, a); + FP_TO_INT_Q(r, A, 64, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/fixunstfsi.c b/soft-fp/fixunstfsi.c new file mode 100644 index 0000000000..94927e4853 --- /dev/null +++ b/soft-fp/fixunstfsi.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a to 32bit unsigned integer + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +USItype __fixunstfsi(long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + USItype r; + + FP_UNPACK_Q(A, a); + FP_TO_INT_Q(r, A, 32, 0); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/floatdidf.c b/soft-fp/floatdidf.c new file mode 100644 index 0000000000..fd3088e1db --- /dev/null +++ b/soft-fp/floatdidf.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a 64bit signed integer to IEEE double + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +double __floatdidf(DItype i) +{ + FP_DECL_EX; + FP_DECL_D(A); + double a; + + FP_FROM_INT_D(A, i, 64, long long); + FP_PACK_D(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/floatdisf.c b/soft-fp/floatdisf.c new file mode 100644 index 0000000000..36a6555fd3 --- /dev/null +++ b/soft-fp/floatdisf.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a 64bit signed integer to IEEE single + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +double __floatdisf(DItype i) +{ + FP_DECL_EX; + FP_DECL_S(A); + float a; + + FP_FROM_INT_S(A, i, 64, long long); + FP_PACK_S(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/floatditf.c b/soft-fp/floatditf.c new file mode 100644 index 0000000000..89a67ac468 --- /dev/null +++ b/soft-fp/floatditf.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a 64bit signed integer to IEEE quad + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double __floatditf(DItype i) +{ + FP_DECL_EX; + FP_DECL_Q(A); + long double a; + + FP_FROM_INT_Q(A, i, 64, long long); + FP_PACK_Q(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/floatsidf.c b/soft-fp/floatsidf.c new file mode 100644 index 0000000000..9e042df4ec --- /dev/null +++ b/soft-fp/floatsidf.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a 32bit signed integer to IEEE double + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +double __floatsidf(SItype i) +{ + FP_DECL_EX; + FP_DECL_D(A); + double a; + + FP_FROM_INT_D(A, i, 32, int); + FP_PACK_D(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/floatsisf.c b/soft-fp/floatsisf.c new file mode 100644 index 0000000000..3d508fb4ae --- /dev/null +++ b/soft-fp/floatsisf.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a 32bit signed integer to IEEE single + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +float __floatsisf(SItype i) +{ + FP_DECL_EX; + FP_DECL_S(A); + float a; + + FP_FROM_INT_S(A, i, 32, int); + FP_PACK_S(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/floatsitf.c b/soft-fp/floatsitf.c new file mode 100644 index 0000000000..04609421da --- /dev/null +++ b/soft-fp/floatsitf.c @@ -0,0 +1,37 @@ +/* Software floating-point emulation. + Convert a 32bit signed integer to IEEE quad + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double __floatsitf(SItype i) +{ + FP_DECL_EX; + FP_DECL_Q(A); + long double a; + + FP_FROM_INT_Q(A, i, 32, int); + FP_PACK_Q(a, A); + FP_HANDLE_EXCEPTIONS; + + return a; +} diff --git a/soft-fp/gedf2.c b/soft-fp/gedf2.c new file mode 100644 index 0000000000..c68f7d25e7 --- /dev/null +++ b/soft-fp/gedf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, -2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +int __gedf2(double a, double b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); + int r; + + FP_UNPACK_RAW_D(A, a); + FP_UNPACK_RAW_D(B, b); + FP_CMP_D(r, A, B, -2); + if (r == -2 && (FP_ISSIGNAN_D(A) || FP_ISSIGNAN_D(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__gedf2, __gtdf2); diff --git a/soft-fp/gesf2.c b/soft-fp/gesf2.c new file mode 100644 index 0000000000..41adadfd4e --- /dev/null +++ b/soft-fp/gesf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, -2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +int __gesf2(float a, float b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); + int r; + + FP_UNPACK_RAW_S(A, a); + FP_UNPACK_RAW_S(B, b); + FP_CMP_S(r, A, B, -2); + if (r == -2 && (FP_ISSIGNAN_S(A) || FP_ISSIGNAN_S(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__gesf2, __gtsf2); diff --git a/soft-fp/getf2.c b/soft-fp/getf2.c new file mode 100644 index 0000000000..fa16c45a72 --- /dev/null +++ b/soft-fp/getf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, -2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int __getf2(long double a, long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, A, B, -2); + if (r == -2 && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__getf2, __gttf2); diff --git a/soft-fp/ledf2.c b/soft-fp/ledf2.c new file mode 100644 index 0000000000..015cb79465 --- /dev/null +++ b/soft-fp/ledf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, 2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +int __ledf2(double a, double b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); + int r; + + FP_UNPACK_RAW_D(A, a); + FP_UNPACK_RAW_D(B, b); + FP_CMP_D(r, A, B, 2); + if (r == 2 && (FP_ISSIGNAN_D(A) || FP_ISSIGNAN_D(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__ledf2, __ltdf2); diff --git a/soft-fp/lesf2.c b/soft-fp/lesf2.c new file mode 100644 index 0000000000..029c5897f2 --- /dev/null +++ b/soft-fp/lesf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, 2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +int __lesf2(float a, float b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); + int r; + + FP_UNPACK_RAW_S(A, a); + FP_UNPACK_RAW_S(B, b); + FP_CMP_S(r, A, B, 2); + if (r == 2 && (FP_ISSIGNAN_S(A) || FP_ISSIGNAN_S(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__lesf2, __ltsf2); diff --git a/soft-fp/letf2.c b/soft-fp/letf2.c new file mode 100644 index 0000000000..97c539ca9e --- /dev/null +++ b/soft-fp/letf2.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Return 0 iff a == b, 1 iff a > b, 2 iff a ? b, -1 iff a < b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int __letf2(long double a, long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, A, B, 2); + if (r == 2 && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +strong_alias(__letf2, __lttf2); diff --git a/soft-fp/muldf3.c b/soft-fp/muldf3.c new file mode 100644 index 0000000000..7c05ebe21b --- /dev/null +++ b/soft-fp/muldf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a * b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +double __muldf3(double a, double b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); + FP_UNPACK_D(B, b); + FP_MUL_D(R, A, B); + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/mulsf3.c b/soft-fp/mulsf3.c new file mode 100644 index 0000000000..63f1671b81 --- /dev/null +++ b/soft-fp/mulsf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a * b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +float __mulsf3(float a, float b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); + FP_UNPACK_S(B, b); + FP_MUL_S(R, A, B); + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/multf3.c b/soft-fp/multf3.c new file mode 100644 index 0000000000..03c7f1a134 --- /dev/null +++ b/soft-fp/multf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a * b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double __multf3(long double a, long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(R); + long double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_MUL_Q(R, A, B); + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/negdf2.c b/soft-fp/negdf2.c new file mode 100644 index 0000000000..eb76712f76 --- /dev/null +++ b/soft-fp/negdf2.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return -a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +double __negdf2(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(R); + double r; + + FP_UNPACK_D(A, a); + FP_NEG_D(R, A); + FP_PACK_D(r, R); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/negsf2.c b/soft-fp/negsf2.c new file mode 100644 index 0000000000..e0a3cbb53f --- /dev/null +++ b/soft-fp/negsf2.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return -a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +float __negsf2(float a) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(R); + float r; + + FP_UNPACK_S(A, a); + FP_NEG_S(R, A); + FP_PACK_S(r, R); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/negtf2.c b/soft-fp/negtf2.c new file mode 100644 index 0000000000..975f011982 --- /dev/null +++ b/soft-fp/negtf2.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return -a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double __negtf2(long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(R); + long double r; + + FP_UNPACK_Q(A, a); + FP_NEG_Q(R, A); + FP_PACK_Q(r, R); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/op-1.h b/soft-fp/op-1.h new file mode 100644 index 0000000000..48bf4ce7e2 --- /dev/null +++ b/soft-fp/op-1.h @@ -0,0 +1,297 @@ +/* Software floating-point emulation. + Basic one-word fraction declaration and manipulation. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define _FP_FRAC_DECL_1(X) _FP_W_TYPE X##_f +#define _FP_FRAC_COPY_1(D,S) (D##_f = S##_f) +#define _FP_FRAC_SET_1(X,I) (X##_f = I) +#define _FP_FRAC_HIGH_1(X) (X##_f) +#define _FP_FRAC_LOW_1(X) (X##_f) +#define _FP_FRAC_WORD_1(X,w) (X##_f) + +#define _FP_FRAC_ADDI_1(X,I) (X##_f += I) +#define _FP_FRAC_SLL_1(X,N) \ + do { \ + if (__builtin_constant_p(N) && (N) == 1) \ + X##_f += X##_f; \ + else \ + X##_f <<= (N); \ + } while (0) +#define _FP_FRAC_SRL_1(X,N) (X##_f >>= N) + +/* Right shift with sticky-lsb. */ +#define _FP_FRAC_SRS_1(X,N,sz) __FP_FRAC_SRS_1(X##_f, N, sz) + +#define __FP_FRAC_SRS_1(X,N,sz) \ + (X = (X >> (N) | (__builtin_constant_p(N) && (N) == 1 \ + ? X & 1 : (X << (_FP_W_TYPE_SIZE - (N))) != 0))) + +#define _FP_FRAC_ADD_1(R,X,Y) (R##_f = X##_f + Y##_f) +#define _FP_FRAC_SUB_1(R,X,Y) (R##_f = X##_f - Y##_f) +#define _FP_FRAC_DEC_1(X,Y) (X##_f -= Y##_f) +#define _FP_FRAC_CLZ_1(z, X) __FP_CLZ(z, X##_f) + +/* Predicates */ +#define _FP_FRAC_NEGP_1(X) ((_FP_WS_TYPE)X##_f < 0) +#define _FP_FRAC_ZEROP_1(X) (X##_f == 0) +#define _FP_FRAC_OVERP_1(fs,X) (X##_f & _FP_OVERFLOW_##fs) +#define _FP_FRAC_EQ_1(X, Y) (X##_f == Y##_f) +#define _FP_FRAC_GE_1(X, Y) (X##_f >= Y##_f) +#define _FP_FRAC_GT_1(X, Y) (X##_f > Y##_f) + +#define _FP_ZEROFRAC_1 0 +#define _FP_MINFRAC_1 1 +#define _FP_MAXFRAC_1 (~(_FP_WS_TYPE)0) + +/* + * Unpack the raw bits of a native fp value. Do not classify or + * normalize the data. + */ + +#define _FP_UNPACK_RAW_1(fs, X, val) \ + do { \ + union _FP_UNION_##fs _flo; _flo.flt = (val); \ + \ + X##_f = _flo.bits.frac; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#define _FP_UNPACK_RAW_1_P(fs, X, val) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + X##_f = _flo->bits.frac; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + } while (0) + +/* + * Repack the raw bits of a native fp value. + */ + +#define _FP_PACK_RAW_1(fs, val, X) \ + do { \ + union _FP_UNION_##fs _flo; \ + \ + _flo.bits.frac = X##_f; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + \ + (val) = _flo.flt; \ + } while (0) + +#define _FP_PACK_RAW_1_P(fs, val, X) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + _flo->bits.frac = X##_f; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } while (0) + + +/* + * Multiplication algorithms: + */ + +/* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the + multiplication immediately. */ + +#define _FP_MUL_MEAT_1_imm(wfracbits, R, X, Y) \ + do { \ + R##_f = X##_f * Y##_f; \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_1(R, wfracbits-1, 2*wfracbits); \ + } while (0) + +/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ + +#define _FP_MUL_MEAT_1_wide(wfracbits, R, X, Y, doit) \ + do { \ + _FP_W_TYPE _Z_f0, _Z_f1; \ + doit(_Z_f1, _Z_f0, X##_f, Y##_f); \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_2(_Z, wfracbits-1, 2*wfracbits); \ + R##_f = _Z_f0; \ + } while (0) + +/* Finally, a simple widening multiply algorithm. What fun! */ + +#define _FP_MUL_MEAT_1_hard(wfracbits, R, X, Y) \ + do { \ + _FP_W_TYPE _xh, _xl, _yh, _yl, _z_f0, _z_f1, _a_f0, _a_f1; \ + \ + /* split the words in half */ \ + _xh = X##_f >> (_FP_W_TYPE_SIZE/2); \ + _xl = X##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \ + _yh = Y##_f >> (_FP_W_TYPE_SIZE/2); \ + _yl = Y##_f & (((_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2)) - 1); \ + \ + /* multiply the pieces */ \ + _z_f0 = _xl * _yl; \ + _a_f0 = _xh * _yl; \ + _a_f1 = _xl * _yh; \ + _z_f1 = _xh * _yh; \ + \ + /* reassemble into two full words */ \ + if ((_a_f0 += _a_f1) < _a_f1) \ + _z_f1 += (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE/2); \ + _a_f1 = _a_f0 >> (_FP_W_TYPE_SIZE/2); \ + _a_f0 = _a_f0 << (_FP_W_TYPE_SIZE/2); \ + _FP_FRAC_ADD_2(_z, _z, _a); \ + \ + /* normalize */ \ + _FP_FRAC_SRS_2(_z, wfracbits - 1, 2*wfracbits); \ + R##_f = _z_f0; \ + } while (0) + + +/* + * Division algorithms: + */ + +/* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the + division immediately. Give this macro either _FP_DIV_HELP_imm for + C primitives or _FP_DIV_HELP_ldiv for the ISO function. Which you + choose will depend on what the compiler does with divrem4. */ + +#define _FP_DIV_MEAT_1_imm(fs, R, X, Y, doit) \ + do { \ + _FP_W_TYPE _q, _r; \ + X##_f <<= (X##_f < Y##_f \ + ? R##_e--, _FP_WFRACBITS_##fs \ + : _FP_WFRACBITS_##fs - 1); \ + doit(_q, _r, X##_f, Y##_f); \ + R##_f = _q | (_r != 0); \ + } while (0) + +/* GCC's longlong.h defines a 2W / 1W => (1W,1W) primitive udiv_qrnnd + that may be useful in this situation. This first is for a primitive + that requires normalization, the second for one that does not. Look + for UDIV_NEEDS_NORMALIZATION to tell which your machine needs. */ + +#define _FP_DIV_MEAT_1_udiv_norm(fs, R, X, Y) \ + do { \ + _FP_W_TYPE _nh, _nl, _q, _r; \ + \ + /* Normalize Y -- i.e. make the most significant bit set. */ \ + Y##_f <<= _FP_WFRACXBITS_##fs - 1; \ + \ + /* Shift X op correspondingly high, that is, up one full word. */ \ + if (X##_f <= Y##_f) \ + { \ + _nl = 0; \ + _nh = X##_f; \ + } \ + else \ + { \ + R##_e++; \ + _nl = X##_f << (_FP_W_TYPE_SIZE-1); \ + _nh = X##_f >> 1; \ + } \ + \ + udiv_qrnnd(_q, _r, _nh, _nl, Y##_f); \ + R##_f = _q | (_r != 0); \ + } while (0) + +#define _FP_DIV_MEAT_1_udiv(fs, R, X, Y) \ + do { \ + _FP_W_TYPE _nh, _nl, _q, _r; \ + if (X##_f < Y##_f) \ + { \ + R##_e--; \ + _nl = X##_f << _FP_WFRACBITS_##fs; \ + _nh = X##_f >> _FP_WFRACXBITS_##fs; \ + } \ + else \ + { \ + _nl = X##_f << (_FP_WFRACBITS_##fs - 1); \ + _nh = X##_f >> (_FP_WFRACXBITS_##fs + 1); \ + } \ + udiv_qrnnd(_q, _r, _nh, _nl, Y##_f); \ + R##_f = _q | (_r != 0); \ + } while (0) + + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + */ + +#define _FP_SQRT_MEAT_1(R, S, T, X, q) \ + do { \ + while (q != _FP_WORK_ROUND) \ + { \ + T##_f = S##_f + q; \ + if (T##_f <= X##_f) \ + { \ + S##_f = T##_f + q; \ + X##_f -= T##_f; \ + R##_f += q; \ + } \ + _FP_FRAC_SLL_1(X, 1); \ + q >>= 1; \ + } \ + if (X##_f) \ + { \ + if (S##_f < X##_f) \ + R##_f |= _FP_WORK_ROUND; \ + R##_f |= _FP_WORK_STICKY; \ + } \ + } while (0) + +/* + * Assembly/disassembly for converting to/from integral types. + * No shifting or overflow handled here. + */ + +#define _FP_FRAC_ASSEMBLE_1(r, X, rsize) (r = X##_f) +#define _FP_FRAC_DISASSEMBLE_1(X, r, rsize) (X##_f = r) + + +/* + * Convert FP values between word sizes + */ + +#define _FP_FRAC_CONV_1_1(dfs, sfs, D, S) \ + do { \ + D##_f = S##_f; \ + if (_FP_WFRACBITS_##sfs > _FP_WFRACBITS_##dfs) \ + { \ + if (S##_c != FP_CLS_NAN) \ + _FP_FRAC_SRS_1(D, (_FP_WFRACBITS_##sfs-_FP_WFRACBITS_##dfs), \ + _FP_WFRACBITS_##sfs); \ + else \ + _FP_FRAC_SRL_1(D, (_FP_WFRACBITS_##sfs-_FP_WFRACBITS_##dfs)); \ + } \ + else \ + D##_f <<= _FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs; \ + } while (0) diff --git a/soft-fp/op-2.h b/soft-fp/op-2.h new file mode 100644 index 0000000000..ad3fbc538a --- /dev/null +++ b/soft-fp/op-2.h @@ -0,0 +1,608 @@ +/* Software floating-point emulation. + Basic two-word fraction declaration and manipulation. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define _FP_FRAC_DECL_2(X) _FP_W_TYPE X##_f0, X##_f1 +#define _FP_FRAC_COPY_2(D,S) (D##_f0 = S##_f0, D##_f1 = S##_f1) +#define _FP_FRAC_SET_2(X,I) __FP_FRAC_SET_2(X, I) +#define _FP_FRAC_HIGH_2(X) (X##_f1) +#define _FP_FRAC_LOW_2(X) (X##_f0) +#define _FP_FRAC_WORD_2(X,w) (X##_f##w) + +#define _FP_FRAC_SLL_2(X,N) \ + do { \ + if ((N) < _FP_W_TYPE_SIZE) \ + { \ + if (__builtin_constant_p(N) && (N) == 1) \ + { \ + X##_f1 = X##_f1 + X##_f1 + (((_FP_WS_TYPE)(X##_f0)) < 0); \ + X##_f0 += X##_f0; \ + } \ + else \ + { \ + X##_f1 = X##_f1 << (N) | X##_f0 >> (_FP_W_TYPE_SIZE - (N)); \ + X##_f0 <<= (N); \ + } \ + } \ + else \ + { \ + X##_f1 = X##_f0 << ((N) - _FP_W_TYPE_SIZE); \ + X##_f0 = 0; \ + } \ + } while (0) + +#define _FP_FRAC_SRL_2(X,N) \ + do { \ + if ((N) < _FP_W_TYPE_SIZE) \ + { \ + X##_f0 = X##_f0 >> (N) | X##_f1 << (_FP_W_TYPE_SIZE - (N)); \ + X##_f1 >>= (N); \ + } \ + else \ + { \ + X##_f0 = X##_f1 >> ((N) - _FP_W_TYPE_SIZE); \ + X##_f1 = 0; \ + } \ + } while (0) + +/* Right shift with sticky-lsb. */ +#define _FP_FRAC_SRS_2(X,N,sz) \ + do { \ + if ((N) < _FP_W_TYPE_SIZE) \ + { \ + X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N) | \ + (__builtin_constant_p(N) && (N) == 1 \ + ? X##_f0 & 1 \ + : (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0)); \ + X##_f1 >>= (N); \ + } \ + else \ + { \ + X##_f0 = (X##_f1 >> ((N) - _FP_W_TYPE_SIZE) | \ + (((X##_f1 << (sz - (N))) | X##_f0) != 0)); \ + X##_f1 = 0; \ + } \ + } while (0) + +#define _FP_FRAC_ADDI_2(X,I) \ + __FP_FRAC_ADDI_2(X##_f1, X##_f0, I) + +#define _FP_FRAC_ADD_2(R,X,Y) \ + __FP_FRAC_ADD_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0) + +#define _FP_FRAC_SUB_2(R,X,Y) \ + __FP_FRAC_SUB_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0) + +#define _FP_FRAC_DEC_2(X,Y) \ + __FP_FRAC_DEC_2(X##_f1, X##_f0, Y##_f1, Y##_f0) + +#define _FP_FRAC_CLZ_2(R,X) \ + do { \ + if (X##_f1) \ + __FP_CLZ(R,X##_f1); \ + else \ + { \ + __FP_CLZ(R,X##_f0); \ + R += _FP_W_TYPE_SIZE; \ + } \ + } while(0) + +/* Predicates */ +#define _FP_FRAC_NEGP_2(X) ((_FP_WS_TYPE)X##_f1 < 0) +#define _FP_FRAC_ZEROP_2(X) ((X##_f1 | X##_f0) == 0) +#define _FP_FRAC_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs) +#define _FP_FRAC_EQ_2(X, Y) (X##_f1 == Y##_f1 && X##_f0 == Y##_f0) +#define _FP_FRAC_GT_2(X, Y) \ + (X##_f1 > Y##_f1 || X##_f1 == Y##_f1 && X##_f0 > Y##_f0) +#define _FP_FRAC_GE_2(X, Y) \ + (X##_f1 > Y##_f1 || X##_f1 == Y##_f1 && X##_f0 >= Y##_f0) + +#define _FP_ZEROFRAC_2 0, 0 +#define _FP_MINFRAC_2 0, 1 +#define _FP_MAXFRAC_2 (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0) + +/* + * Internals + */ + +#define __FP_FRAC_SET_2(X,I1,I0) (X##_f0 = I0, X##_f1 = I1) + +#define __FP_CLZ_2(R, xh, xl) \ + do { \ + if (xh) \ + __FP_CLZ(R,xh); \ + else \ + { \ + __FP_CLZ(R,xl); \ + R += _FP_W_TYPE_SIZE; \ + } \ + } while(0) + +#if 0 + +#ifndef __FP_FRAC_ADDI_2 +#define __FP_FRAC_ADDI_2(xh, xl, i) \ + (xh += ((xl += i) < i)) +#endif +#ifndef __FP_FRAC_ADD_2 +#define __FP_FRAC_ADD_2(rh, rl, xh, xl, yh, yl) \ + (rh = xh + yh + ((rl = xl + yl) < xl)) +#endif +#ifndef __FP_FRAC_SUB_2 +#define __FP_FRAC_SUB_2(rh, rl, xh, xl, yh, yl) \ + (rh = xh - yh - ((rl = xl - yl) > xl)) +#endif +#ifndef __FP_FRAC_DEC_2 +#define __FP_FRAC_DEC_2(xh, xl, yh, yl) \ + do { \ + UWtype _t = xl; \ + xh -= yh + ((xl -= yl) > _t); \ + } while (0) +#endif + +#else + +#undef __FP_FRAC_ADDI_2 +#define __FP_FRAC_ADDI_2(xh, xl, i) add_ssaaaa(xh, xl, xh, xl, 0, i) +#undef __FP_FRAC_ADD_2 +#define __FP_FRAC_ADD_2 add_ssaaaa +#undef __FP_FRAC_SUB_2 +#define __FP_FRAC_SUB_2 sub_ddmmss +#undef __FP_FRAC_DEC_2 +#define __FP_FRAC_DEC_2(xh, xl, yh, yl) sub_ddmmss(xh, xl, xh, xl, yh, yl) + +#endif + +/* + * Unpack the raw bits of a native fp value. Do not classify or + * normalize the data. + */ + +#define _FP_UNPACK_RAW_2(fs, X, val) \ + do { \ + union _FP_UNION_##fs _flo; _flo.flt = (val); \ + \ + X##_f0 = _flo.bits.frac0; \ + X##_f1 = _flo.bits.frac1; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#define _FP_UNPACK_RAW_2_P(fs, X, val) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + X##_f0 = _flo->bits.frac0; \ + X##_f1 = _flo->bits.frac1; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + } while (0) + + +/* + * Repack the raw bits of a native fp value. + */ + +#define _FP_PACK_RAW_2(fs, val, X) \ + do { \ + union _FP_UNION_##fs _flo; \ + \ + _flo.bits.frac0 = X##_f0; \ + _flo.bits.frac1 = X##_f1; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + \ + (val) = _flo.flt; \ + } while (0) + +#define _FP_PACK_RAW_2_P(fs, val, X) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + _flo->bits.frac0 = X##_f0; \ + _flo->bits.frac1 = X##_f1; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } while (0) + + +/* + * Multiplication algorithms: + */ + +/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ + +#define _FP_MUL_MEAT_2_wide(wfracbits, R, X, Y, doit) \ + do { \ + _FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \ + \ + doit(_FP_FRAC_WORD_4(_z,1), _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \ + doit(_b_f1, _b_f0, X##_f0, Y##_f1); \ + doit(_c_f1, _c_f0, X##_f1, Y##_f0); \ + doit(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), X##_f1, Y##_f1); \ + \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), 0, _b_f1, _b_f0, \ + _FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), 0, _c_f1, _c_f0, \ + _FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1)); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \ + R##_f0 = _FP_FRAC_WORD_4(_z,0); \ + R##_f1 = _FP_FRAC_WORD_4(_z,1); \ + } while (0) + +/* Given a 1W * 1W => 2W primitive, do the extended multiplication. + Do only 3 multiplications instead of four. This one is for machines + where multiplication is much more expensive than subtraction. */ + +#define _FP_MUL_MEAT_2_wide_3mul(wfracbits, R, X, Y, doit) \ + do { \ + _FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \ + _FP_W_TYPE _d; \ + int _c1, _c2; \ + \ + _b_f0 = X##_f0 + X##_f1; \ + _c1 = _b_f0 < X##_f0; \ + _b_f1 = Y##_f0 + Y##_f1; \ + _c2 = _b_f1 < Y##_f0; \ + doit(_d, _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \ + doit(_FP_FRAC_WORD_4(_z,2), _FP_FRAC_WORD_4(_z,1), _b_f0, _b_f1); \ + doit(_c_f1, _c_f0, X##_f1, Y##_f1); \ + \ + _b_f0 &= -_c2; \ + _b_f1 &= -_c1; \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), (_c1 & _c2), 0, _d, \ + 0, _FP_FRAC_WORD_4(_z,2), _FP_FRAC_WORD_4(_z,1)); \ + __FP_FRAC_ADDI_2(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _b_f0); \ + __FP_FRAC_ADDI_2(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _b_f1); \ + __FP_FRAC_DEC_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), \ + 0, _d, _FP_FRAC_WORD_4(_z,0)); \ + __FP_FRAC_DEC_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \ + _FP_FRAC_WORD_4(_z,1), 0, _c_f1, _c_f0); \ + __FP_FRAC_ADD_2(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), \ + _c_f1, _c_f0, \ + _FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2)); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \ + R##_f0 = _FP_FRAC_WORD_4(_z,0); \ + R##_f1 = _FP_FRAC_WORD_4(_z,1); \ + } while (0) + +#define _FP_MUL_MEAT_2_gmp(wfracbits, R, X, Y) \ + do { \ + _FP_FRAC_DECL_4(_z); \ + _FP_W_TYPE _x[2], _y[2]; \ + _x[0] = X##_f0; _x[1] = X##_f1; \ + _y[0] = Y##_f0; _y[1] = Y##_f1; \ + \ + mpn_mul_n(_z_f, _x, _y, 2); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \ + R##_f0 = _z_f[0]; \ + R##_f1 = _z_f[1]; \ + } while (0) + +/* Do at most 120x120=240 bits multiplication using double floating + point multiplication. This is useful if floating point + multiplication has much bigger throughput than integer multiply. + It is supposed to work for _FP_W_TYPE_SIZE 64 and wfracbits + between 106 and 120 only. + Caller guarantees that X and Y has (1LLL << (wfracbits - 1)) set. + SETFETZ is a macro which will disable all FPU exceptions and set rounding + towards zero, RESETFE should optionally reset it back. */ + +#define _FP_MUL_MEAT_2_120_240_double(wfracbits, R, X, Y, setfetz, resetfe) \ + do { \ + static const double _const[] = { \ + /* 2^-24 */ 5.9604644775390625e-08, \ + /* 2^-48 */ 3.5527136788005009e-15, \ + /* 2^-72 */ 2.1175823681357508e-22, \ + /* 2^-96 */ 1.2621774483536189e-29, \ + /* 2^28 */ 2.68435456e+08, \ + /* 2^4 */ 1.600000e+01, \ + /* 2^-20 */ 9.5367431640625e-07, \ + /* 2^-44 */ 5.6843418860808015e-14, \ + /* 2^-68 */ 3.3881317890172014e-21, \ + /* 2^-92 */ 2.0194839173657902e-28, \ + /* 2^-116 */ 1.2037062152420224e-35}; \ + double _a240, _b240, _c240, _d240, _e240, _f240, \ + _g240, _h240, _i240, _j240, _k240; \ + union { double d; UDItype i; } _l240, _m240, _n240, _o240, \ + _p240, _q240, _r240, _s240; \ + UDItype _t240, _u240, _v240, _w240, _x240, _y240 = 0; \ + \ + if (wfracbits < 106 || wfracbits > 120) \ + abort(); \ + \ + setfetz; \ + \ + _e240 = (double)(long)(X##_f0 & 0xffffff); \ + _j240 = (double)(long)(Y##_f0 & 0xffffff); \ + _d240 = (double)(long)((X##_f0 >> 24) & 0xffffff); \ + _i240 = (double)(long)((Y##_f0 >> 24) & 0xffffff); \ + _c240 = (double)(long)(((X##_f1 << 16) & 0xffffff) | (X##_f0 >> 48)); \ + _h240 = (double)(long)(((Y##_f1 << 16) & 0xffffff) | (Y##_f0 >> 48)); \ + _b240 = (double)(long)((X##_f1 >> 8) & 0xffffff); \ + _g240 = (double)(long)((Y##_f1 >> 8) & 0xffffff); \ + _a240 = (double)(long)(X##_f1 >> 32); \ + _f240 = (double)(long)(Y##_f1 >> 32); \ + _e240 *= _const[3]; \ + _j240 *= _const[3]; \ + _d240 *= _const[2]; \ + _i240 *= _const[2]; \ + _c240 *= _const[1]; \ + _h240 *= _const[1]; \ + _b240 *= _const[0]; \ + _g240 *= _const[0]; \ + _s240.d = _e240*_j240;\ + _r240.d = _d240*_j240 + _e240*_i240;\ + _q240.d = _c240*_j240 + _d240*_i240 + _e240*_h240;\ + _p240.d = _b240*_j240 + _c240*_i240 + _d240*_h240 + _e240*_g240;\ + _o240.d = _a240*_j240 + _b240*_i240 + _c240*_h240 + _d240*_g240 + _e240*_f240;\ + _n240.d = _a240*_i240 + _b240*_h240 + _c240*_g240 + _d240*_f240; \ + _m240.d = _a240*_h240 + _b240*_g240 + _c240*_f240; \ + _l240.d = _a240*_g240 + _b240*_f240; \ + _k240 = _a240*_f240; \ + _r240.d += _s240.d; \ + _q240.d += _r240.d; \ + _p240.d += _q240.d; \ + _o240.d += _p240.d; \ + _n240.d += _o240.d; \ + _m240.d += _n240.d; \ + _l240.d += _m240.d; \ + _k240 += _l240.d; \ + _s240.d -= ((_const[10]+_s240.d)-_const[10]); \ + _r240.d -= ((_const[9]+_r240.d)-_const[9]); \ + _q240.d -= ((_const[8]+_q240.d)-_const[8]); \ + _p240.d -= ((_const[7]+_p240.d)-_const[7]); \ + _o240.d += _const[7]; \ + _n240.d += _const[6]; \ + _m240.d += _const[5]; \ + _l240.d += _const[4]; \ + if (_s240.d != 0.0) _y240 = 1; \ + if (_r240.d != 0.0) _y240 = 1; \ + if (_q240.d != 0.0) _y240 = 1; \ + if (_p240.d != 0.0) _y240 = 1; \ + _t240 = (DItype)_k240; \ + _u240 = _l240.i; \ + _v240 = _m240.i; \ + _w240 = _n240.i; \ + _x240 = _o240.i; \ + R##_f1 = (_t240 << (128 - (wfracbits - 1))) \ + | ((_u240 & 0xffffff) >> ((wfracbits - 1) - 104)); \ + R##_f0 = ((_u240 & 0xffffff) << (168 - (wfracbits - 1))) \ + | ((_v240 & 0xffffff) << (144 - (wfracbits - 1))) \ + | ((_w240 & 0xffffff) << (120 - (wfracbits - 1))) \ + | ((_x240 & 0xffffff) >> ((wfracbits - 1) - 96)) \ + | _y240; \ + resetfe; \ + } while (0) + +/* + * Division algorithms: + */ + +#define _FP_DIV_MEAT_2_udiv(fs, R, X, Y) \ + do { \ + _FP_W_TYPE _n_f2, _n_f1, _n_f0, _r_f1, _r_f0, _m_f1, _m_f0; \ + if (_FP_FRAC_GT_2(X, Y)) \ + { \ + _n_f2 = X##_f1 >> 1; \ + _n_f1 = X##_f1 << (_FP_W_TYPE_SIZE - 1) | X##_f0 >> 1; \ + _n_f0 = X##_f0 << (_FP_W_TYPE_SIZE - 1); \ + } \ + else \ + { \ + R##_e--; \ + _n_f2 = X##_f1; \ + _n_f1 = X##_f0; \ + _n_f0 = 0; \ + } \ + \ + /* Normalize, i.e. make the most significant bit of the \ + denominator set. */ \ + _FP_FRAC_SLL_2(Y, _FP_WFRACXBITS_##fs); \ + \ + udiv_qrnnd(R##_f1, _r_f1, _n_f2, _n_f1, Y##_f1); \ + umul_ppmm(_m_f1, _m_f0, R##_f1, Y##_f0); \ + _r_f0 = _n_f0; \ + if (_FP_FRAC_GT_2(_m, _r)) \ + { \ + R##_f1--; \ + _FP_FRAC_ADD_2(_r, Y, _r); \ + if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \ + { \ + R##_f1--; \ + _FP_FRAC_ADD_2(_r, Y, _r); \ + } \ + } \ + _FP_FRAC_DEC_2(_r, _m); \ + \ + if (_r_f1 == Y##_f1) \ + { \ + /* This is a special case, not an optimization \ + (_r/Y##_f1 would not fit into UWtype). \ + As _r is guaranteed to be < Y, R##_f0 can be either \ + (UWtype)-1 or (UWtype)-2. But as we know what kind \ + of bits it is (sticky, guard, round), we don't care. \ + We also don't care what the reminder is, because the \ + guard bit will be set anyway. -jj */ \ + R##_f0 = -1; \ + } \ + else \ + { \ + udiv_qrnnd(R##_f0, _r_f1, _r_f1, _r_f0, Y##_f1); \ + umul_ppmm(_m_f1, _m_f0, R##_f0, Y##_f0); \ + _r_f0 = 0; \ + if (_FP_FRAC_GT_2(_m, _r)) \ + { \ + R##_f0--; \ + _FP_FRAC_ADD_2(_r, Y, _r); \ + if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \ + { \ + R##_f0--; \ + _FP_FRAC_ADD_2(_r, Y, _r); \ + } \ + } \ + if (!_FP_FRAC_EQ_2(_r, _m)) \ + R##_f0 |= _FP_WORK_STICKY; \ + } \ + } while (0) + + +#define _FP_DIV_MEAT_2_gmp(fs, R, X, Y) \ + do { \ + _FP_W_TYPE _x[4], _y[2], _z[4]; \ + _y[0] = Y##_f0; _y[1] = Y##_f1; \ + _x[0] = _x[3] = 0; \ + if (_FP_FRAC_GT_2(X, Y)) \ + { \ + R##_e++; \ + _x[1] = (X##_f0 << (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE) | \ + X##_f1 >> (_FP_W_TYPE_SIZE - \ + (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE))); \ + _x[2] = X##_f1 << (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE); \ + } \ + else \ + { \ + _x[1] = (X##_f0 << (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE) | \ + X##_f1 >> (_FP_W_TYPE_SIZE - \ + (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE))); \ + _x[2] = X##_f1 << (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE); \ + } \ + \ + (void) mpn_divrem (_z, 0, _x, 4, _y, 2); \ + R##_f1 = _z[1]; \ + R##_f0 = _z[0] | ((_x[0] | _x[1]) != 0); \ + } while (0) + + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + */ + +#define _FP_SQRT_MEAT_2(R, S, T, X, q) \ + do { \ + while (q) \ + { \ + T##_f1 = S##_f1 + q; \ + if (T##_f1 <= X##_f1) \ + { \ + S##_f1 = T##_f1 + q; \ + X##_f1 -= T##_f1; \ + R##_f1 += q; \ + } \ + _FP_FRAC_SLL_2(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q != _FP_WORK_ROUND) \ + { \ + T##_f0 = S##_f0 + q; \ + T##_f1 = S##_f1; \ + if (T##_f1 < X##_f1 || \ + (T##_f1 == X##_f1 && T##_f0 <= X##_f0)) \ + { \ + S##_f0 = T##_f0 + q; \ + S##_f1 += (T##_f0 > S##_f0); \ + _FP_FRAC_DEC_2(X, T); \ + R##_f0 += q; \ + } \ + _FP_FRAC_SLL_2(X, 1); \ + q >>= 1; \ + } \ + if (X##_f0 | X##_f1) \ + { \ + if (S##_f1 < X##_f1 || \ + (S##_f1 == X##_f1 && S##_f0 < X##_f0)) \ + R##_f0 |= _FP_WORK_ROUND; \ + R##_f0 |= _FP_WORK_STICKY; \ + } \ + } while (0) + + +/* + * Assembly/disassembly for converting to/from integral types. + * No shifting or overflow handled here. + */ + +#define _FP_FRAC_ASSEMBLE_2(r, X, rsize) \ + do { \ + if (rsize <= _FP_W_TYPE_SIZE) \ + r = X##_f0; \ + else \ + { \ + r = X##_f1; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f0; \ + } \ + } while (0) + +#define _FP_FRAC_DISASSEMBLE_2(X, r, rsize) \ + do { \ + X##_f0 = r; \ + X##_f1 = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \ + } while (0) + +/* + * Convert FP values between word sizes + */ + +#define _FP_FRAC_CONV_1_2(dfs, sfs, D, S) \ + do { \ + if (S##_c != FP_CLS_NAN) \ + _FP_FRAC_SRS_2(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs), \ + _FP_WFRACBITS_##sfs); \ + else \ + _FP_FRAC_SRL_2(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs)); \ + D##_f = S##_f0; \ + } while (0) + +#define _FP_FRAC_CONV_2_1(dfs, sfs, D, S) \ + do { \ + D##_f0 = S##_f; \ + D##_f1 = 0; \ + _FP_FRAC_SLL_2(D, (_FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs)); \ + } while (0) + diff --git a/soft-fp/op-4.h b/soft-fp/op-4.h new file mode 100644 index 0000000000..f5235f5d97 --- /dev/null +++ b/soft-fp/op-4.h @@ -0,0 +1,661 @@ +/* Software floating-point emulation. + Basic four-word fraction declaration and manipulation. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define _FP_FRAC_DECL_4(X) _FP_W_TYPE X##_f[4] +#define _FP_FRAC_COPY_4(D,S) \ + (D##_f[0] = S##_f[0], D##_f[1] = S##_f[1], \ + D##_f[2] = S##_f[2], D##_f[3] = S##_f[3]) +#define _FP_FRAC_SET_4(X,I) __FP_FRAC_SET_4(X, I) +#define _FP_FRAC_HIGH_4(X) (X##_f[3]) +#define _FP_FRAC_LOW_4(X) (X##_f[0]) +#define _FP_FRAC_WORD_4(X,w) (X##_f[w]) + +#define _FP_FRAC_SLL_4(X,N) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _up = (N) % _FP_W_TYPE_SIZE; \ + _down = _FP_W_TYPE_SIZE - _up; \ + if (!_up) \ + for (_i = 3; _i >= _skip; --_i) \ + X##_f[_i] = X##_f[_i-_skip]; \ + else \ + { \ + for (_i = 3; _i > _skip; --_i) \ + X##_f[_i] = X##_f[_i-_skip] << _up \ + | X##_f[_i-_skip-1] >> _down; \ + X##_f[_i--] = X##_f[0] << _up; \ + } \ + for (; _i >= 0; --_i) \ + X##_f[_i] = 0; \ + } while (0) + +/* This one was broken too */ +#define _FP_FRAC_SRL_4(X,N) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _down = (N) % _FP_W_TYPE_SIZE; \ + _up = _FP_W_TYPE_SIZE - _down; \ + if (!_down) \ + for (_i = 0; _i <= 3-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip]; \ + else \ + { \ + for (_i = 0; _i < 3-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip] >> _down \ + | X##_f[_i+_skip+1] << _up; \ + X##_f[_i++] = X##_f[3] >> _down; \ + } \ + for (; _i < 4; ++_i) \ + X##_f[_i] = 0; \ + } while (0) + + +/* Right shift with sticky-lsb. + * What this actually means is that we do a standard right-shift, + * but that if any of the bits that fall off the right hand side + * were one then we always set the LSbit. + */ +#define _FP_FRAC_SRS_4(X,N,size) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _FP_W_TYPE _s; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _down = (N) % _FP_W_TYPE_SIZE; \ + _up = _FP_W_TYPE_SIZE - _down; \ + for (_s = _i = 0; _i < _skip; ++_i) \ + _s |= X##_f[_i]; \ + _s |= X##_f[_i] << _up; \ +/* s is now != 0 if we want to set the LSbit */ \ + if (!_down) \ + for (_i = 0; _i <= 3-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip]; \ + else \ + { \ + for (_i = 0; _i < 3-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip] >> _down \ + | X##_f[_i+_skip+1] << _up; \ + X##_f[_i++] = X##_f[3] >> _down; \ + } \ + for (; _i < 4; ++_i) \ + X##_f[_i] = 0; \ + /* don't fix the LSB until the very end when we're sure f[0] is stable */ \ + X##_f[0] |= (_s != 0); \ + } while (0) + +#define _FP_FRAC_ADD_4(R,X,Y) \ + __FP_FRAC_ADD_4(R##_f[3], R##_f[2], R##_f[1], R##_f[0], \ + X##_f[3], X##_f[2], X##_f[1], X##_f[0], \ + Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0]) + +#define _FP_FRAC_SUB_4(R,X,Y) \ + __FP_FRAC_SUB_4(R##_f[3], R##_f[2], R##_f[1], R##_f[0], \ + X##_f[3], X##_f[2], X##_f[1], X##_f[0], \ + Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0]) + +#define _FP_FRAC_DEC_4(X,Y) \ + __FP_FRAC_DEC_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], \ + Y##_f[3], Y##_f[2], Y##_f[1], Y##_f[0]) + +#define _FP_FRAC_ADDI_4(X,I) \ + __FP_FRAC_ADDI_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], I) + +#define _FP_ZEROFRAC_4 0,0,0,0 +#define _FP_MINFRAC_4 0,0,0,1 +#define _FP_MAXFRAC_4 (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0) + +#define _FP_FRAC_ZEROP_4(X) ((X##_f[0] | X##_f[1] | X##_f[2] | X##_f[3]) == 0) +#define _FP_FRAC_NEGP_4(X) ((_FP_WS_TYPE)X##_f[3] < 0) +#define _FP_FRAC_OVERP_4(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs) + +#define _FP_FRAC_EQ_4(X,Y) \ + (X##_f[0] == Y##_f[0] && X##_f[1] == Y##_f[1] \ + && X##_f[2] == Y##_f[2] && X##_f[3] == Y##_f[3]) + +#define _FP_FRAC_GT_4(X,Y) \ + (X##_f[3] > Y##_f[3] || \ + (X##_f[3] == Y##_f[3] && (X##_f[2] > Y##_f[2] || \ + (X##_f[2] == Y##_f[2] && (X##_f[1] > Y##_f[1] || \ + (X##_f[1] == Y##_f[1] && X##_f[0] > Y##_f[0]) \ + )) \ + )) \ + ) + +#define _FP_FRAC_GE_4(X,Y) \ + (X##_f[3] > Y##_f[3] || \ + (X##_f[3] == Y##_f[3] && (X##_f[2] > Y##_f[2] || \ + (X##_f[2] == Y##_f[2] && (X##_f[1] > Y##_f[1] || \ + (X##_f[1] == Y##_f[1] && X##_f[0] >= Y##_f[0]) \ + )) \ + )) \ + ) + + +#define _FP_FRAC_CLZ_4(R,X) \ + do { \ + if (X##_f[3]) \ + { \ + __FP_CLZ(R,X##_f[3]); \ + } \ + else if (X##_f[2]) \ + { \ + __FP_CLZ(R,X##_f[2]); \ + R += _FP_W_TYPE_SIZE; \ + } \ + else if (X##_f[1]) \ + { \ + __FP_CLZ(R,X##_f[2]); \ + R += _FP_W_TYPE_SIZE*2; \ + } \ + else \ + { \ + __FP_CLZ(R,X##_f[0]); \ + R += _FP_W_TYPE_SIZE*3; \ + } \ + } while(0) + + +#define _FP_UNPACK_RAW_4(fs, X, val) \ + do { \ + union _FP_UNION_##fs _flo; _flo.flt = (val); \ + X##_f[0] = _flo.bits.frac0; \ + X##_f[1] = _flo.bits.frac1; \ + X##_f[2] = _flo.bits.frac2; \ + X##_f[3] = _flo.bits.frac3; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#define _FP_UNPACK_RAW_4_P(fs, X, val) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + X##_f[0] = _flo->bits.frac0; \ + X##_f[1] = _flo->bits.frac1; \ + X##_f[2] = _flo->bits.frac2; \ + X##_f[3] = _flo->bits.frac3; \ + X##_e = _flo->bits.exp; \ + X##_s = _flo->bits.sign; \ + } while (0) + +#define _FP_PACK_RAW_4(fs, val, X) \ + do { \ + union _FP_UNION_##fs _flo; \ + _flo.bits.frac0 = X##_f[0]; \ + _flo.bits.frac1 = X##_f[1]; \ + _flo.bits.frac2 = X##_f[2]; \ + _flo.bits.frac3 = X##_f[3]; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + (val) = _flo.flt; \ + } while (0) + +#define _FP_PACK_RAW_4_P(fs, val, X) \ + do { \ + union _FP_UNION_##fs *_flo = \ + (union _FP_UNION_##fs *)(val); \ + \ + _flo->bits.frac0 = X##_f[0]; \ + _flo->bits.frac1 = X##_f[1]; \ + _flo->bits.frac2 = X##_f[2]; \ + _flo->bits.frac3 = X##_f[3]; \ + _flo->bits.exp = X##_e; \ + _flo->bits.sign = X##_s; \ + } while (0) + +/* + * Multiplication algorithms: + */ + +/* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ + +#define _FP_MUL_MEAT_4_wide(wfracbits, R, X, Y, doit) \ + do { \ + _FP_FRAC_DECL_8(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \ + _FP_FRAC_DECL_2(_d); _FP_FRAC_DECL_2(_e); _FP_FRAC_DECL_2(_f); \ + \ + doit(_FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0), X##_f[0], Y##_f[0]); \ + doit(_b_f1, _b_f0, X##_f[0], Y##_f[1]); \ + doit(_c_f1, _c_f0, X##_f[1], Y##_f[0]); \ + doit(_d_f1, _d_f0, X##_f[1], Y##_f[1]); \ + doit(_e_f1, _e_f0, X##_f[0], Y##_f[2]); \ + doit(_f_f1, _f_f0, X##_f[2], Y##_f[0]); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1), 0,_b_f1,_b_f0, \ + 0,0,_FP_FRAC_WORD_8(_z,1)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1), 0,_c_f1,_c_f0, \ + _FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2), 0,_d_f1,_d_f0, \ + 0,_FP_FRAC_WORD_8(_z,3),_FP_FRAC_WORD_8(_z,2)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2), 0,_e_f1,_e_f0, \ + _FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2), 0,_f_f1,_f_f0, \ + _FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3), \ + _FP_FRAC_WORD_8(_z,2)); \ + doit(_b_f1, _b_f0, X##_f[0], Y##_f[3]); \ + doit(_c_f1, _c_f0, X##_f[3], Y##_f[0]); \ + doit(_d_f1, _d_f0, X##_f[1], Y##_f[2]); \ + doit(_e_f1, _e_f0, X##_f[2], Y##_f[1]); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3), 0,_b_f1,_b_f0, \ + 0,_FP_FRAC_WORD_8(_z,4),_FP_FRAC_WORD_8(_z,3)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3), 0,_c_f1,_c_f0, \ + _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3), 0,_d_f1,_d_f0, \ + _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3), 0,_e_f1,_e_f0, \ + _FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4), \ + _FP_FRAC_WORD_8(_z,3)); \ + doit(_b_f1, _b_f0, X##_f[2], Y##_f[2]); \ + doit(_c_f1, _c_f0, X##_f[1], Y##_f[3]); \ + doit(_d_f1, _d_f0, X##_f[3], Y##_f[1]); \ + doit(_e_f1, _e_f0, X##_f[2], Y##_f[3]); \ + doit(_f_f1, _f_f0, X##_f[3], Y##_f[2]); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4), 0,_b_f1,_b_f0, \ + 0,_FP_FRAC_WORD_8(_z,5),_FP_FRAC_WORD_8(_z,4)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4), 0,_c_f1,_c_f0, \ + _FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4), 0,_d_f1,_d_f0, \ + _FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5), \ + _FP_FRAC_WORD_8(_z,4)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \ + _FP_FRAC_WORD_8(_z,5), 0,_e_f1,_e_f0, \ + 0,_FP_FRAC_WORD_8(_z,6),_FP_FRAC_WORD_8(_z,5)); \ + __FP_FRAC_ADD_3(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \ + _FP_FRAC_WORD_8(_z,5), 0,_f_f1,_f_f0, \ + _FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \ + _FP_FRAC_WORD_8(_z,5)); \ + doit(_b_f1, _b_f0, X##_f[3], Y##_f[3]); \ + __FP_FRAC_ADD_2(_FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6), \ + _b_f1,_b_f0, \ + _FP_FRAC_WORD_8(_z,7),_FP_FRAC_WORD_8(_z,6)); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_8(_z, wfracbits-1, 2*wfracbits); \ + __FP_FRAC_SET_4(R, _FP_FRAC_WORD_8(_z,3), _FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0)); \ + } while (0) + +#define _FP_MUL_MEAT_4_gmp(wfracbits, R, X, Y) \ + do { \ + _FP_FRAC_DECL_8(_z); \ + \ + mpn_mul_n(_z_f, _x_f, _y_f, 4); \ + \ + /* Normalize since we know where the msb of the multiplicands \ + were (bit B), we know that the msb of the of the product is \ + at either 2B or 2B-1. */ \ + _FP_FRAC_SRS_8(_z, wfracbits-1, 2*wfracbits); \ + __FP_FRAC_SET_4(R, _FP_FRAC_WORD_8(_z,3), _FP_FRAC_WORD_8(_z,2), \ + _FP_FRAC_WORD_8(_z,1), _FP_FRAC_WORD_8(_z,0)); \ + } while (0) + +/* + * Helper utility for _FP_DIV_MEAT_4_udiv: + * pppp = m * nnn + */ +#define umul_ppppmnnn(p3,p2,p1,p0,m,n2,n1,n0) \ + do { \ + UWtype _t; \ + umul_ppmm(p1,p0,m,n0); \ + umul_ppmm(p2,_t,m,n1); \ + __FP_FRAC_ADDI_2(p2,p1,_t); \ + umul_ppmm(p3,_t,m,n2); \ + __FP_FRAC_ADDI_2(p3,p2,_t); \ + } while (0) + +/* + * Division algorithms: + */ + +#define _FP_DIV_MEAT_4_udiv(fs, R, X, Y) \ + do { \ + int _i; \ + _FP_FRAC_DECL_4(_n); _FP_FRAC_DECL_4(_m); \ + _FP_FRAC_SET_4(_n, _FP_ZEROFRAC_4); \ + if (_FP_FRAC_GT_4(X, Y)) \ + { \ + _n_f[3] = X##_f[0] << (_FP_W_TYPE_SIZE - 1); \ + _FP_FRAC_SRL_4(X, 1); \ + } \ + else \ + R##_e--; \ + \ + /* Normalize, i.e. make the most significant bit of the \ + denominator set. */ \ + _FP_FRAC_SLL_4(Y, _FP_WFRACXBITS_##fs); \ + \ + for (_i = 3; ; _i--) \ + { \ + if (X##_f[3] == Y##_f[3]) \ + { \ + /* This is a special case, not an optimization \ + (X##_f[3]/Y##_f[3] would not fit into UWtype). \ + As X## is guaranteed to be < Y, R##_f[_i] can be either \ + (UWtype)-1 or (UWtype)-2. */ \ + R##_f[_i] = -1; \ + if (!_i) \ + break; \ + __FP_FRAC_SUB_4(X##_f[3], X##_f[2], X##_f[1], X##_f[0], \ + Y##_f[2], Y##_f[1], Y##_f[0], 0, \ + X##_f[2], X##_f[1], X##_f[0], _n_f[_i]); \ + _FP_FRAC_SUB_4(X, Y, X); \ + if (X##_f[3] > Y##_f[3]) \ + { \ + R##_f[_i] = -2; \ + _FP_FRAC_ADD_4(X, Y, X); \ + } \ + } \ + else \ + { \ + udiv_qrnnd(R##_f[_i], X##_f[3], X##_f[3], X##_f[2], Y##_f[3]); \ + umul_ppppmnnn(_m_f[3], _m_f[2], _m_f[1], _m_f[0], \ + R##_f[_i], Y##_f[2], Y##_f[1], Y##_f[0]); \ + X##_f[2] = X##_f[1]; \ + X##_f[1] = X##_f[0]; \ + X##_f[0] = _n_f[_i]; \ + if (_FP_FRAC_GT_4(_m, X)) \ + { \ + R##_f[_i]--; \ + _FP_FRAC_ADD_4(X, Y, X); \ + if (_FP_FRAC_GE_4(X, Y) && _FP_FRAC_GT_4(_m, X)) \ + { \ + R##_f[_i]--; \ + _FP_FRAC_ADD_4(X, Y, X); \ + } \ + } \ + _FP_FRAC_DEC_4(X, _m); \ + if (!_i) \ + { \ + if (!_FP_FRAC_EQ_4(X, _m)) \ + R##_f[0] |= _FP_WORK_STICKY; \ + break; \ + } \ + } \ + } \ + } while (0) + + +/* + * Square root algorithms: + * We have just one right now, maybe Newton approximation + * should be added for those machines where division is fast. + */ + +#define _FP_SQRT_MEAT_4(R, S, T, X, q) \ + do { \ + while (q) \ + { \ + T##_f[3] = S##_f[3] + q; \ + if (T##_f[3] <= X##_f[3]) \ + { \ + S##_f[3] = T##_f[3] + q; \ + X##_f[3] -= T##_f[3]; \ + R##_f[3] += q; \ + } \ + _FP_FRAC_SLL_4(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q) \ + { \ + T##_f[2] = S##_f[2] + q; \ + T##_f[3] = S##_f[3]; \ + if (T##_f[3] < X##_f[3] || \ + (T##_f[3] == X##_f[3] && T##_f[2] <= X##_f[2])) \ + { \ + S##_f[2] = T##_f[2] + q; \ + S##_f[3] += (T##_f[2] > S##_f[2]); \ + __FP_FRAC_DEC_2(X##_f[3], X##_f[2], \ + T##_f[3], T##_f[2]); \ + R##_f[2] += q; \ + } \ + _FP_FRAC_SLL_4(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q) \ + { \ + T##_f[1] = S##_f[1] + q; \ + T##_f[2] = S##_f[2]; \ + T##_f[3] = S##_f[3]; \ + if (T##_f[3] < X##_f[3] || \ + (T##_f[3] == X##_f[3] && (T##_f[2] < X##_f[2] || \ + (T##_f[2] == X##_f[2] && T##_f[1] <= X##_f[1])))) \ + { \ + S##_f[1] = T##_f[1] + q; \ + S##_f[2] += (T##_f[1] > S##_f[1]); \ + S##_f[3] += (T##_f[2] > S##_f[2]); \ + __FP_FRAC_DEC_3(X##_f[3], X##_f[2], X##_f[1], \ + T##_f[3], T##_f[2], T##_f[1]); \ + R##_f[1] += q; \ + } \ + _FP_FRAC_SLL_4(X, 1); \ + q >>= 1; \ + } \ + q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \ + while (q != _FP_WORK_ROUND) \ + { \ + T##_f[0] = S##_f[0] + q; \ + T##_f[1] = S##_f[1]; \ + T##_f[2] = S##_f[2]; \ + T##_f[3] = S##_f[3]; \ + if (_FP_FRAC_GE_4(X,T)) \ + { \ + S##_f[0] = T##_f[0] + q; \ + S##_f[1] += (T##_f[0] > S##_f[0]); \ + S##_f[2] += (T##_f[1] > S##_f[1]); \ + S##_f[3] += (T##_f[2] > S##_f[2]); \ + _FP_FRAC_DEC_4(X, T); \ + R##_f[0] += q; \ + } \ + _FP_FRAC_SLL_4(X, 1); \ + q >>= 1; \ + } \ + if (!_FP_FRAC_ZEROP_4(X)) \ + { \ + if (_FP_FRAC_GT_4(X,S)) \ + R##_f[0] |= _FP_WORK_ROUND; \ + R##_f[0] |= _FP_WORK_STICKY; \ + } \ + } while (0) + + +/* + * Internals + */ + +#define __FP_FRAC_SET_4(X,I3,I2,I1,I0) \ + (X##_f[3] = I3, X##_f[2] = I2, X##_f[1] = I1, X##_f[0] = I0) + +#ifndef __FP_FRAC_ADD_3 +#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ + (r0 = x0 + y0, \ + r1 = x1 + y1 + (r0 < x0), \ + r2 = x2 + y2 + (r1 < x1)) +#endif + +#ifndef __FP_FRAC_ADD_4 +#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + (r0 = x0 + y0, \ + r1 = x1 + y1 + (r0 < x0), \ + r2 = x2 + y2 + (r1 < x1), \ + r3 = x3 + y3 + (r2 < x2)) +#endif + +#ifndef __FP_FRAC_SUB_3 +#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ + (r0 = x0 - y0, \ + r1 = x1 - y1 - (r0 > x0), \ + r2 = x2 - y2 - (r1 > x1)) +#endif + +#ifndef __FP_FRAC_SUB_4 +#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + (r0 = x0 - y0, \ + r1 = x1 - y1 - (r0 > x0), \ + r2 = x2 - y2 - (r1 > x1), \ + r3 = x3 - y3 - (r2 > x2)) +#endif + +#ifndef __FP_FRAC_DEC_3 +#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) \ + do { \ + UWtype _t0, _t1; \ + _t0 = x0; \ + x0 -= y0; \ + _t1 = x1; \ + x1 -= y1 + (x0 > _t0); \ + x2 -= y2 + (x1 > _t1); \ + } while (0) +#endif + +#ifndef __FP_FRAC_DEC_4 +#define __FP_FRAC_DEC_4(x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + UWtype _t0, _t1; \ + _t0 = x0; \ + x0 -= y0; \ + _t1 = x1; \ + x1 -= y1 + (x0 > _t0); \ + _t0 = x2; \ + x2 -= y2 + (x1 > _t1); \ + x3 -= y3 + (x2 > _t0); \ + } while (0) +#endif + +#ifndef __FP_FRAC_ADDI_4 +#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \ + do { \ + UWtype _t; \ + _t = ((x0 += i) < i); \ + x1 += _t; _t = (x1 < _t); \ + x2 += _t; _t = (x2 < _t); \ + x3 += _t; \ + } while (0) +#endif + +/* Convert FP values between word sizes. This appears to be more + * complicated than I'd have expected it to be, so these might be + * wrong... These macros are in any case somewhat bogus because they + * use information about what various FRAC_n variables look like + * internally [eg, that 2 word vars are X_f0 and x_f1]. But so do + * the ones in op-2.h and op-1.h. + */ +#define _FP_FRAC_CONV_1_4(dfs, sfs, D, S) \ + do { \ + if (S##_c != FP_CLS_NAN) \ + _FP_FRAC_SRS_4(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs), \ + _FP_WFRACBITS_##sfs); \ + else \ + _FP_FRAC_SRL_4(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs)); \ + D##_f = S##_f[0]; \ + } while (0) + +#define _FP_FRAC_CONV_2_4(dfs, sfs, D, S) \ + do { \ + if (S##_c != FP_CLS_NAN) \ + _FP_FRAC_SRS_4(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs), \ + _FP_WFRACBITS_##sfs); \ + else \ + _FP_FRAC_SRL_4(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs)); \ + D##_f0 = S##_f[0]; \ + D##_f1 = S##_f[1]; \ + } while (0) + +/* Assembly/disassembly for converting to/from integral types. + * No shifting or overflow handled here. + */ +/* Put the FP value X into r, which is an integer of size rsize. */ +#define _FP_FRAC_ASSEMBLE_4(r, X, rsize) \ + do { \ + if (rsize <= _FP_W_TYPE_SIZE) \ + r = X##_f[0]; \ + else if (rsize <= 2*_FP_W_TYPE_SIZE) \ + { \ + r = X##_f[1]; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f[0]; \ + } \ + else \ + { \ + /* I'm feeling lazy so we deal with int == 3words (implausible)*/ \ + /* and int == 4words as a single case. */ \ + r = X##_f[3]; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f[2]; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f[1]; \ + r <<= _FP_W_TYPE_SIZE; \ + r += X##_f[0]; \ + } \ + } while (0) + +/* "No disassemble Number Five!" */ +/* move an integer of size rsize into X's fractional part. We rely on + * the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid + * having to mask the values we store into it. + */ +#define _FP_FRAC_DISASSEMBLE_4(X, r, rsize) \ + do { \ + X##_f[0] = r; \ + X##_f[1] = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \ + X##_f[2] = (rsize <= 2*_FP_W_TYPE_SIZE ? 0 : r >> 2*_FP_W_TYPE_SIZE); \ + X##_f[3] = (rsize <= 3*_FP_W_TYPE_SIZE ? 0 : r >> 3*_FP_W_TYPE_SIZE); \ + } while (0); + +#define _FP_FRAC_CONV_4_1(dfs, sfs, D, S) \ + do { \ + D##_f[0] = S##_f; \ + D##_f[1] = D##_f[2] = D##_f[3] = 0; \ + _FP_FRAC_SLL_4(D, (_FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs)); \ + } while (0) + +#define _FP_FRAC_CONV_4_2(dfs, sfs, D, S) \ + do { \ + D##_f[0] = S##_f0; \ + D##_f[1] = S##_f1; \ + D##_f[2] = D##_f[3] = 0; \ + _FP_FRAC_SLL_4(D, (_FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs)); \ + } while (0) + diff --git a/soft-fp/op-8.h b/soft-fp/op-8.h new file mode 100644 index 0000000000..a9d7dbf590 --- /dev/null +++ b/soft-fp/op-8.h @@ -0,0 +1,103 @@ +/* Software floating-point emulation. + Basic eight-word fraction declaration and manipulation. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* We need just a few things from here for op-4, if we ever need some + other macros, they can be added. */ +#define _FP_FRAC_DECL_8(X) _FP_W_TYPE X##_f[8] +#define _FP_FRAC_HIGH_8(X) (X##_f[7]) +#define _FP_FRAC_LOW_8(X) (X##_f[0]) +#define _FP_FRAC_WORD_8(X,w) (X##_f[w]) + +#define _FP_FRAC_SLL_8(X,N) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _up = (N) % _FP_W_TYPE_SIZE; \ + _down = _FP_W_TYPE_SIZE - _up; \ + if (!_up) \ + for (_i = 7; _i >= _skip; --_i) \ + X##_f[_i] = X##_f[_i-_skip]; \ + else \ + { \ + for (_i = 7; _i > _skip; --_i) \ + X##_f[_i] = X##_f[_i-_skip] << _up \ + | X##_f[_i-_skip-1] >> _down; \ + X##_f[_i--] = X##_f[0] << _up; \ + } \ + for (; _i >= 0; --_i) \ + X##_f[_i] = 0; \ + } while (0) + +#define _FP_FRAC_SRL_8(X,N) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _down = (N) % _FP_W_TYPE_SIZE; \ + _up = _FP_W_TYPE_SIZE - _down; \ + if (!_down) \ + for (_i = 0; _i <= 7-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip]; \ + else \ + { \ + for (_i = 0; _i < 7-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip] >> _down \ + | X##_f[_i+_skip+1] << _up; \ + X##_f[_i++] = X##_f[7] >> _down; \ + } \ + for (; _i < 8; ++_i) \ + X##_f[_i] = 0; \ + } while (0) + + +/* Right shift with sticky-lsb. + * What this actually means is that we do a standard right-shift, + * but that if any of the bits that fall off the right hand side + * were one then we always set the LSbit. + */ +#define _FP_FRAC_SRS_8(X,N,size) \ + do { \ + _FP_I_TYPE _up, _down, _skip, _i; \ + _FP_W_TYPE _s; \ + _skip = (N) / _FP_W_TYPE_SIZE; \ + _down = (N) % _FP_W_TYPE_SIZE; \ + _up = _FP_W_TYPE_SIZE - _down; \ + for (_s = _i = 0; _i < _skip; ++_i) \ + _s |= X##_f[_i]; \ + _s |= X##_f[_i] << _up; \ +/* s is now != 0 if we want to set the LSbit */ \ + if (!_down) \ + for (_i = 0; _i <= 7-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip]; \ + else \ + { \ + for (_i = 0; _i < 7-_skip; ++_i) \ + X##_f[_i] = X##_f[_i+_skip] >> _down \ + | X##_f[_i+_skip+1] << _up; \ + X##_f[_i++] = X##_f[7] >> _down; \ + } \ + for (; _i < 8; ++_i) \ + X##_f[_i] = 0; \ + /* don't fix the LSB until the very end when we're sure f[0] is stable */ \ + X##_f[0] |= (_s != 0); \ + } while (0) + diff --git a/soft-fp/op-common.h b/soft-fp/op-common.h new file mode 100644 index 0000000000..207aa77383 --- /dev/null +++ b/soft-fp/op-common.h @@ -0,0 +1,767 @@ +/* Software floating-point emulation. Common operations. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define _FP_DECL(wc, X) \ + _FP_I_TYPE X##_c, X##_s, X##_e; \ + _FP_FRAC_DECL_##wc(X) + +/* + * Finish truely unpacking a native fp value by classifying the kind + * of fp value and normalizing both the exponent and the fraction. + */ + +#define _FP_UNPACK_CANONICAL(fs, wc, X) \ +do { \ + switch (X##_e) \ + { \ + default: \ + _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_IMPLBIT_##fs; \ + _FP_FRAC_SLL_##wc(X, _FP_WORKBITS); \ + X##_e -= _FP_EXPBIAS_##fs; \ + X##_c = FP_CLS_NORMAL; \ + break; \ + \ + case 0: \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + X##_c = FP_CLS_ZERO; \ + else \ + { \ + /* a denormalized number */ \ + _FP_I_TYPE _shift; \ + _FP_FRAC_CLZ_##wc(_shift, X); \ + _shift -= _FP_FRACXBITS_##fs; \ + _FP_FRAC_SLL_##wc(X, (_shift+_FP_WORKBITS)); \ + X##_e -= _FP_EXPBIAS_##fs - 1 + _shift; \ + X##_c = FP_CLS_NORMAL; \ + FP_SET_EXCEPTION(FP_EX_DENORM); \ + } \ + break; \ + \ + case _FP_EXPMAX_##fs: \ + if (_FP_FRAC_ZEROP_##wc(X)) \ + X##_c = FP_CLS_INF; \ + else \ + { \ + X##_c = FP_CLS_NAN; \ + /* Check for signaling NaN */ \ + if (!(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + } \ + break; \ + } \ +} while (0) + +/* + * Before packing the bits back into the native fp result, take care + * of such mundane things as rounding and overflow. Also, for some + * kinds of fp values, the original parts may not have been fully + * extracted -- but that is ok, we can regenerate them now. + */ + +#define _FP_PACK_CANONICAL(fs, wc, X) \ +do { \ + switch (X##_c) \ + { \ + case FP_CLS_NORMAL: \ + X##_e += _FP_EXPBIAS_##fs; \ + if (X##_e > 0) \ + { \ + _FP_ROUND(wc, X); \ + if (_FP_FRAC_OVERP_##wc(fs, X)) \ + { \ + _FP_FRAC_SRL_##wc(X, (_FP_WORKBITS+1)); \ + X##_e++; \ + } \ + else \ + _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ + if (X##_e >= _FP_EXPMAX_##fs) \ + { \ + /* overflow */ \ + switch (FP_ROUNDMODE) \ + { \ + case FP_RND_NEAREST: \ + X##_c = FP_CLS_INF; \ + break; \ + case FP_RND_PINF: \ + if (!X##_s) X##_c = FP_CLS_INF; \ + break; \ + case FP_RND_MINF: \ + if (X##_s) X##_c = FP_CLS_INF; \ + break; \ + } \ + if (X##_c == FP_CLS_INF) \ + { \ + /* Overflow to infinity */ \ + X##_e = _FP_EXPMAX_##fs; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + } \ + else \ + { \ + /* Overflow to maximum normal */ \ + X##_e = _FP_EXPMAX_##fs - 1; \ + _FP_FRAC_SET_##wc(X, _FP_MAXFRAC_##wc); \ + } \ + FP_SET_EXCEPTION(FP_EX_OVERFLOW); \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + } \ + } \ + else \ + { \ + /* we've got a denormalized number */ \ + X##_e = -X##_e + 1; \ + if (X##_e <= _FP_WFRACBITS_##fs) \ + { \ + _FP_FRAC_SRS_##wc(X, X##_e, _FP_WFRACBITS_##fs); \ + _FP_ROUND(wc, X); \ + if (_FP_FRAC_HIGH_##fs(X) \ + & (_FP_OVERFLOW_##fs >> 1)) \ + { \ + X##_e = 1; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + } \ + else \ + { \ + X##_e = 0; \ + _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ + FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ + } \ + } \ + else \ + { \ + /* underflow to zero */ \ + X##_e = 0; \ + if (!_FP_FRAC_ZEROP_##wc(X)) \ + { \ + _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \ + _FP_ROUND(wc, X); \ + _FP_FRAC_LOW_##wc(X) >>= (_FP_WORKBITS); \ + } \ + FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ + } \ + } \ + break; \ + \ + case FP_CLS_ZERO: \ + X##_e = 0; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + break; \ + \ + case FP_CLS_INF: \ + X##_e = _FP_EXPMAX_##fs; \ + _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + break; \ + \ + case FP_CLS_NAN: \ + X##_e = _FP_EXPMAX_##fs; \ + if (!_FP_KEEPNANFRACP) \ + { \ + _FP_FRAC_SET_##wc(X, _FP_NANFRAC_##fs); \ + X##_s = _FP_NANSIGN_##fs; \ + } \ + else \ + _FP_FRAC_HIGH_RAW_##fs(X) |= _FP_QNANBIT_##fs; \ + break; \ + } \ +} while (0) + +/* This one accepts raw argument and not cooked, returns + * 1 if X is a signaling NaN. + */ +#define _FP_ISSIGNAN(fs, wc, X) \ +({ \ + int __ret = 0; \ + if (X##_e == _FP_EXPMAX_##fs) \ + { \ + if (!_FP_FRAC_ZEROP_##wc(X) \ + && !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ + __ret = 1; \ + } \ + __ret; \ +}) + + + + + +/* + * Main addition routine. The input values should be cooked. + */ + +#define _FP_ADD_INTERNAL(fs, wc, R, X, Y, OP) \ +do { \ + switch (_FP_CLS_COMBINE(X##_c, Y##_c)) \ + { \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NORMAL): \ + { \ + /* shift the smaller number so that its exponent matches the larger */ \ + _FP_I_TYPE diff = X##_e - Y##_e; \ + \ + if (diff < 0) \ + { \ + diff = -diff; \ + if (diff <= _FP_WFRACBITS_##fs) \ + _FP_FRAC_SRS_##wc(X, diff, _FP_WFRACBITS_##fs); \ + else if (!_FP_FRAC_ZEROP_##wc(X)) \ + _FP_FRAC_SET_##wc(X, _FP_MINFRAC_##wc); \ + R##_e = Y##_e; \ + } \ + else \ + { \ + if (diff > 0) \ + { \ + if (diff <= _FP_WFRACBITS_##fs) \ + _FP_FRAC_SRS_##wc(Y, diff, _FP_WFRACBITS_##fs); \ + else if (!_FP_FRAC_ZEROP_##wc(Y)) \ + _FP_FRAC_SET_##wc(Y, _FP_MINFRAC_##wc); \ + } \ + R##_e = X##_e; \ + } \ + \ + R##_c = FP_CLS_NORMAL; \ + \ + if (X##_s == Y##_s) \ + { \ + R##_s = X##_s; \ + _FP_FRAC_ADD_##wc(R, X, Y); \ + if (_FP_FRAC_OVERP_##wc(fs, R)) \ + { \ + _FP_FRAC_SRS_##wc(R, 1, _FP_WFRACBITS_##fs); \ + R##_e++; \ + } \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_SUB_##wc(R, X, Y); \ + if (_FP_FRAC_ZEROP_##wc(R)) \ + { \ + /* return an exact zero */ \ + if (FP_ROUNDMODE == FP_RND_MINF) \ + R##_s |= Y##_s; \ + else \ + R##_s &= Y##_s; \ + R##_c = FP_CLS_ZERO; \ + } \ + else \ + { \ + if (_FP_FRAC_NEGP_##wc(R)) \ + { \ + _FP_FRAC_SUB_##wc(R, Y, X); \ + R##_s = Y##_s; \ + } \ + \ + /* renormalize after subtraction */ \ + _FP_FRAC_CLZ_##wc(diff, R); \ + diff -= _FP_WFRACXBITS_##fs; \ + if (diff) \ + { \ + R##_e -= diff; \ + _FP_FRAC_SLL_##wc(R, diff); \ + } \ + } \ + } \ + break; \ + } \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NAN): \ + _FP_CHOOSENAN(fs, wc, R, X, Y, OP); \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \ + R##_e = X##_e; \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_s = X##_s; \ + R##_c = X##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NORMAL): \ + R##_e = Y##_e; \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \ + _FP_FRAC_COPY_##wc(R, Y); \ + R##_s = Y##_s; \ + R##_c = Y##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF): \ + if (X##_s != Y##_s) \ + { \ + /* +INF + -INF => NAN */ \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + R##_s = _FP_NANSIGN_##fs; \ + R##_c = FP_CLS_NAN; \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + break; \ + } \ + /* FALLTHRU */ \ + \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \ + R##_s = X##_s; \ + R##_c = FP_CLS_INF; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_INF): \ + R##_s = Y##_s; \ + R##_c = FP_CLS_INF; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO): \ + /* make sure the sign is correct */ \ + if (FP_ROUNDMODE == FP_RND_MINF) \ + R##_s = X##_s | Y##_s; \ + else \ + R##_s = X##_s & Y##_s; \ + R##_c = FP_CLS_ZERO; \ + break; \ + \ + default: \ + abort(); \ + } \ +} while (0) + +#define _FP_ADD(fs, wc, R, X, Y) _FP_ADD_INTERNAL(fs, wc, R, X, Y, '+') +#define _FP_SUB(fs, wc, R, X, Y) \ + do { \ + if (Y##_c != FP_CLS_NAN) Y##_s ^= 1; \ + _FP_ADD_INTERNAL(fs, wc, R, X, Y, '-'); \ + } while (0) + + +/* + * Main negation routine. FIXME -- when we care about setting exception + * bits reliably, this will not do. We should examine all of the fp classes. + */ + +#define _FP_NEG(fs, wc, R, X) \ + do { \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_c = X##_c; \ + R##_e = X##_e; \ + R##_s = 1 ^ X##_s; \ + } while (0) + + +/* + * Main multiplication routine. The input values should be cooked. + */ + +#define _FP_MUL(fs, wc, R, X, Y) \ +do { \ + R##_s = X##_s ^ Y##_s; \ + switch (_FP_CLS_COMBINE(X##_c, Y##_c)) \ + { \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NORMAL): \ + R##_c = FP_CLS_NORMAL; \ + R##_e = X##_e + Y##_e + 1; \ + \ + _FP_MUL_MEAT_##fs(R,X,Y); \ + \ + if (_FP_FRAC_OVERP_##wc(fs, R)) \ + _FP_FRAC_SRS_##wc(R, 1, _FP_WFRACBITS_##fs); \ + else \ + R##_e--; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NAN): \ + _FP_CHOOSENAN(fs, wc, R, X, Y, '*'); \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \ + R##_s = X##_s; \ + \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO): \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_c = X##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \ + R##_s = Y##_s; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \ + _FP_FRAC_COPY_##wc(R, Y); \ + R##_c = Y##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_INF): \ + R##_s = _FP_NANSIGN_##fs; \ + R##_c = FP_CLS_NAN; \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + break; \ + \ + default: \ + abort(); \ + } \ +} while (0) + + +/* + * Main division routine. The input values should be cooked. + */ + +#define _FP_DIV(fs, wc, R, X, Y) \ +do { \ + R##_s = X##_s ^ Y##_s; \ + switch (_FP_CLS_COMBINE(X##_c, Y##_c)) \ + { \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NORMAL): \ + R##_c = FP_CLS_NORMAL; \ + R##_e = X##_e - Y##_e; \ + \ + _FP_DIV_MEAT_##fs(R,X,Y); \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NAN): \ + _FP_CHOOSENAN(fs, wc, R, X, Y, '/'); \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_NORMAL): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_NAN,FP_CLS_ZERO): \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_c = X##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NAN): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NAN): \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R, Y); \ + R##_c = Y##_c; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_NORMAL): \ + R##_c = FP_CLS_ZERO; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_NORMAL,FP_CLS_ZERO): \ + FP_SET_EXCEPTION(FP_EX_DIVZERO); \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_ZERO): \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_NORMAL): \ + R##_c = FP_CLS_INF; \ + break; \ + \ + case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF): \ + case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO): \ + R##_s = _FP_NANSIGN_##fs; \ + R##_c = FP_CLS_NAN; \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + break; \ + \ + default: \ + abort(); \ + } \ +} while (0) + + +/* + * Main differential comparison routine. The inputs should be raw not + * cooked. The return is -1,0,1 for normal values, 2 otherwise. + */ + +#define _FP_CMP(fs, wc, ret, X, Y, un) \ + do { \ + /* NANs are unordered */ \ + if ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \ + || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))) \ + { \ + ret = un; \ + } \ + else \ + { \ + int __is_zero_x; \ + int __is_zero_y; \ + \ + __is_zero_x = (!X##_e && _FP_FRAC_ZEROP_##wc(X)) ? 1 : 0; \ + __is_zero_y = (!Y##_e && _FP_FRAC_ZEROP_##wc(Y)) ? 1 : 0; \ + \ + if (__is_zero_x && __is_zero_y) \ + ret = 0; \ + else if (__is_zero_x) \ + ret = Y##_s ? 1 : -1; \ + else if (__is_zero_y) \ + ret = X##_s ? -1 : 1; \ + else if (X##_s != Y##_s) \ + ret = X##_s ? -1 : 1; \ + else if (X##_e > Y##_e) \ + ret = X##_s ? -1 : 1; \ + else if (X##_e < Y##_e) \ + ret = X##_s ? 1 : -1; \ + else if (_FP_FRAC_GT_##wc(X, Y)) \ + ret = X##_s ? -1 : 1; \ + else if (_FP_FRAC_GT_##wc(Y, X)) \ + ret = X##_s ? 1 : -1; \ + else \ + ret = 0; \ + } \ + } while (0) + + +/* Simplification for strict equality. */ + +#define _FP_CMP_EQ(fs, wc, ret, X, Y) \ + do { \ + /* NANs are unordered */ \ + if ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(X)) \ + || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc(Y))) \ + { \ + ret = 1; \ + } \ + else \ + { \ + ret = !(X##_e == Y##_e \ + && _FP_FRAC_EQ_##wc(X, Y) \ + && (X##_s == Y##_s || !X##_e && _FP_FRAC_ZEROP_##wc(X))); \ + } \ + } while (0) + +/* + * Main square root routine. The input value should be cooked. + */ + +#define _FP_SQRT(fs, wc, R, X) \ +do { \ + _FP_FRAC_DECL_##wc(T); _FP_FRAC_DECL_##wc(S); \ + _FP_W_TYPE q; \ + switch (X##_c) \ + { \ + case FP_CLS_NAN: \ + _FP_FRAC_COPY_##wc(R, X); \ + R##_s = X##_s; \ + R##_c = FP_CLS_NAN; \ + break; \ + case FP_CLS_INF: \ + if (X##_s) \ + { \ + R##_s = _FP_NANSIGN_##fs; \ + R##_c = FP_CLS_NAN; /* NAN */ \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + } \ + else \ + { \ + R##_s = 0; \ + R##_c = FP_CLS_INF; /* sqrt(+inf) = +inf */ \ + } \ + break; \ + case FP_CLS_ZERO: \ + R##_s = X##_s; \ + R##_c = FP_CLS_ZERO; /* sqrt(+-0) = +-0 */ \ + break; \ + case FP_CLS_NORMAL: \ + R##_s = 0; \ + if (X##_s) \ + { \ + R##_c = FP_CLS_NAN; /* sNAN */ \ + R##_s = _FP_NANSIGN_##fs; \ + _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs); \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + break; \ + } \ + R##_c = FP_CLS_NORMAL; \ + if (X##_e & 1) \ + _FP_FRAC_SLL_##wc(X, 1); \ + R##_e = X##_e >> 1; \ + _FP_FRAC_SET_##wc(S, _FP_ZEROFRAC_##wc); \ + _FP_FRAC_SET_##wc(R, _FP_ZEROFRAC_##wc); \ + q = _FP_OVERFLOW_##fs >> 1; \ + _FP_SQRT_MEAT_##wc(R, S, T, X, q); \ + } \ + } while (0) + +/* + * Convert from FP to integer + */ + +/* RSIGNED can have following values: + * 0: the number is required to be 0..(2^rsize)-1, if not, NV is set plus + * the result is either 0 or (2^rsize)-1 depending on the sign in such case. + * 1: the number is required to be -(2^(rsize-1))..(2^(rsize-1))-1, if not, NV is + * set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1 depending + * on the sign in such case. + * -1: the number is required to be -(2^(rsize-1))..(2^rsize)-1, if not, NV is + * set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1 depending + * on the sign in such case. + */ +#define _FP_TO_INT(fs, wc, r, X, rsize, rsigned) \ + do { \ + switch (X##_c) \ + { \ + case FP_CLS_NORMAL: \ + if (X##_e < 0) \ + { \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + case FP_CLS_ZERO: \ + r = 0; \ + } \ + else if (X##_e >= rsize - (rsigned > 0 || X##_s) \ + || (!rsigned && X##_s)) \ + { /* overflow */ \ + case FP_CLS_NAN: \ + case FP_CLS_INF: \ + if (rsigned) \ + { \ + r = 1; \ + r <<= rsize - 1; \ + r -= 1 - X##_s; \ + } else { \ + r = 0; \ + if (X##_s) \ + r = ~r; \ + } \ + FP_SET_EXCEPTION(FP_EX_INVALID); \ + } \ + else \ + { \ + if (_FP_W_TYPE_SIZE*wc < rsize) \ + { \ + _FP_FRAC_ASSEMBLE_##wc(r, X, rsize); \ + r <<= X##_e - _FP_WFRACBITS_##fs; \ + } \ + else \ + { \ + if (X##_e >= _FP_WFRACBITS_##fs) \ + _FP_FRAC_SLL_##wc(X, (X##_e - _FP_WFRACBITS_##fs + 1)); \ + else if (X##_e < _FP_WFRACBITS_##fs - 1) \ + { \ + _FP_FRAC_SRS_##wc(X, (_FP_WFRACBITS_##fs - X##_e - 2), \ + _FP_WFRACBITS_##fs); \ + if (_FP_FRAC_LOW_##wc(X) & 1) \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + _FP_FRAC_SRL_##wc(X, 1); \ + } \ + _FP_FRAC_ASSEMBLE_##wc(r, X, rsize); \ + } \ + if (rsigned && X##_s) \ + r = -r; \ + } \ + break; \ + } \ + } while (0) + +#define _FP_FROM_INT(fs, wc, X, r, rsize, rtype) \ + do { \ + if (r) \ + { \ + X##_c = FP_CLS_NORMAL; \ + \ + if ((X##_s = (r < 0))) \ + r = -r; \ + \ + if (rsize <= _FP_W_TYPE_SIZE) \ + __FP_CLZ(X##_e, r); \ + else \ + __FP_CLZ_2(X##_e, (_FP_W_TYPE)(r >> _FP_W_TYPE_SIZE), \ + (_FP_W_TYPE)r); \ + if (rsize < _FP_W_TYPE_SIZE) \ + X##_e -= (_FP_W_TYPE_SIZE - rsize); \ + X##_e = rsize - X##_e - 1; \ + \ + if (_FP_FRACBITS_##fs < rsize && _FP_WFRACBITS_##fs < X##_e) \ + __FP_FRAC_SRS_1(r, (X##_e - _FP_WFRACBITS_##fs), rsize); \ + r &= ~((rtype)1 << X##_e); \ + _FP_FRAC_DISASSEMBLE_##wc(X, ((unsigned rtype)r), rsize); \ + _FP_FRAC_SLL_##wc(X, (_FP_WFRACBITS_##fs - X##_e - 1)); \ + } \ + else \ + { \ + X##_c = FP_CLS_ZERO, X##_s = 0; \ + } \ + } while (0) + + +#define FP_CONV(dfs,sfs,dwc,swc,D,S) \ + do { \ + _FP_FRAC_CONV_##dwc##_##swc(dfs, sfs, D, S); \ + D##_e = S##_e; \ + D##_c = S##_c; \ + D##_s = S##_s; \ + } while (0) + +/* + * Helper primitives. + */ + +/* Count leading zeros in a word. */ + +#ifndef __FP_CLZ +#if _FP_W_TYPE_SIZE < 64 +/* this is just to shut the compiler up about shifts > word length -- PMM 02/1998 */ +#define __FP_CLZ(r, x) \ + do { \ + _FP_W_TYPE _t = (x); \ + r = _FP_W_TYPE_SIZE - 1; \ + if (_t > 0xffff) r -= 16; \ + if (_t > 0xffff) _t >>= 16; \ + if (_t > 0xff) r -= 8; \ + if (_t > 0xff) _t >>= 8; \ + if (_t & 0xf0) r -= 4; \ + if (_t & 0xf0) _t >>= 4; \ + if (_t & 0xc) r -= 2; \ + if (_t & 0xc) _t >>= 2; \ + if (_t & 0x2) r -= 1; \ + } while (0) +#else /* not _FP_W_TYPE_SIZE < 64 */ +#define __FP_CLZ(r, x) \ + do { \ + _FP_W_TYPE _t = (x); \ + r = _FP_W_TYPE_SIZE - 1; \ + if (_t > 0xffffffff) r -= 32; \ + if (_t > 0xffffffff) _t >>= 32; \ + if (_t > 0xffff) r -= 16; \ + if (_t > 0xffff) _t >>= 16; \ + if (_t > 0xff) r -= 8; \ + if (_t > 0xff) _t >>= 8; \ + if (_t & 0xf0) r -= 4; \ + if (_t & 0xf0) _t >>= 4; \ + if (_t & 0xc) r -= 2; \ + if (_t & 0xc) _t >>= 2; \ + if (_t & 0x2) r -= 1; \ + } while (0) +#endif /* not _FP_W_TYPE_SIZE < 64 */ +#endif /* ndef __FP_CLZ */ + +#define _FP_DIV_HELP_imm(q, r, n, d) \ + do { \ + q = n / d, r = n % d; \ + } while (0) + diff --git a/soft-fp/quad.h b/soft-fp/quad.h new file mode 100644 index 0000000000..92a1e2b486 --- /dev/null +++ b/soft-fp/quad.h @@ -0,0 +1,201 @@ +/* Software floating-point emulation. + Definitions for IEEE Quad Precision. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if _FP_W_TYPE_SIZE < 32 +#error "Here's a nickel, kid. Go buy yourself a real computer." +#endif + +#if _FP_W_TYPE_SIZE < 64 +#define _FP_FRACTBITS_Q (4*_FP_W_TYPE_SIZE) +#else +#define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE) +#endif + +#define _FP_FRACBITS_Q 113 +#define _FP_FRACXBITS_Q (_FP_FRACTBITS_Q - _FP_FRACBITS_Q) +#define _FP_WFRACBITS_Q (_FP_WORKBITS + _FP_FRACBITS_Q) +#define _FP_WFRACXBITS_Q (_FP_FRACTBITS_Q - _FP_WFRACBITS_Q) +#define _FP_EXPBITS_Q 15 +#define _FP_EXPBIAS_Q 16383 +#define _FP_EXPMAX_Q 32767 + +#define _FP_QNANBIT_Q \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE) +#define _FP_IMPLBIT_Q \ + ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE) +#define _FP_OVERFLOW_Q \ + ((_FP_W_TYPE)1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE)) + +#if _FP_W_TYPE_SIZE < 64 + +union _FP_UNION_Q +{ + long double flt; + struct + { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_Q; + unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); + unsigned long frac2 : _FP_W_TYPE_SIZE; + unsigned long frac1 : _FP_W_TYPE_SIZE; + unsigned long frac0 : _FP_W_TYPE_SIZE; +#else + unsigned long frac0 : _FP_W_TYPE_SIZE; + unsigned long frac1 : _FP_W_TYPE_SIZE; + unsigned long frac2 : _FP_W_TYPE_SIZE; + unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); + unsigned exp : _FP_EXPBITS_Q; + unsigned sign : 1; +#endif /* not bigendian */ + } bits __attribute__((packed)); +}; + + +#define FP_DECL_Q(X) _FP_DECL(4,X) +#define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_4(Q,X,val) +#define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_4_P(Q,X,val) +#define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_4(Q,val,X) +#define FP_PACK_RAW_QP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_4_P(Q,val,X); \ + } while (0) + +#define FP_UNPACK_Q(X,val) \ + do { \ + _FP_UNPACK_RAW_4(Q,X,val); \ + _FP_UNPACK_CANONICAL(Q,4,X); \ + } while (0) + +#define FP_UNPACK_QP(X,val) \ + do { \ + _FP_UNPACK_RAW_4_P(Q,X,val); \ + _FP_UNPACK_CANONICAL(Q,4,X); \ + } while (0) + +#define FP_PACK_Q(val,X) \ + do { \ + _FP_PACK_CANONICAL(Q,4,X); \ + _FP_PACK_RAW_4(Q,val,X); \ + } while (0) + +#define FP_PACK_QP(val,X) \ + do { \ + _FP_PACK_CANONICAL(Q,4,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_4_P(Q,val,X); \ + } while (0) + +#define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,4,X) +#define FP_NEG_Q(R,X) _FP_NEG(Q,4,R,X) +#define FP_ADD_Q(R,X,Y) _FP_ADD(Q,4,R,X,Y) +#define FP_SUB_Q(R,X,Y) _FP_SUB(Q,4,R,X,Y) +#define FP_MUL_Q(R,X,Y) _FP_MUL(Q,4,R,X,Y) +#define FP_DIV_Q(R,X,Y) _FP_DIV(Q,4,R,X,Y) +#define FP_SQRT_Q(R,X) _FP_SQRT(Q,4,R,X) +#define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_4(R,S,T,X,Q) + +#define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,4,r,X,Y,un) +#define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,4,r,X,Y) + +#define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,4,r,X,rsz,rsg) +#define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,4,X,r,rs,rt) + +#define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_4(X) +#define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_4(X) + +#else /* not _FP_W_TYPE_SIZE < 64 */ +union _FP_UNION_Q +{ + long double flt /* __attribute__((mode(TF))) */ ; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_Q; + unsigned long frac1 : _FP_FRACBITS_Q-(_FP_IMPLBIT_Q != 0)-_FP_W_TYPE_SIZE; + unsigned long frac0 : _FP_W_TYPE_SIZE; +#else + unsigned long frac0 : _FP_W_TYPE_SIZE; + unsigned long frac1 : _FP_FRACBITS_Q-(_FP_IMPLBIT_Q != 0)-_FP_W_TYPE_SIZE; + unsigned exp : _FP_EXPBITS_Q; + unsigned sign : 1; +#endif + } bits; +}; + +#define FP_DECL_Q(X) _FP_DECL(2,X) +#define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_2(Q,X,val) +#define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_2_P(Q,X,val) +#define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_2(Q,val,X) +#define FP_PACK_RAW_QP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(Q,val,X); \ + } while (0) + +#define FP_UNPACK_Q(X,val) \ + do { \ + _FP_UNPACK_RAW_2(Q,X,val); \ + _FP_UNPACK_CANONICAL(Q,2,X); \ + } while (0) + +#define FP_UNPACK_QP(X,val) \ + do { \ + _FP_UNPACK_RAW_2_P(Q,X,val); \ + _FP_UNPACK_CANONICAL(Q,2,X); \ + } while (0) + +#define FP_PACK_Q(val,X) \ + do { \ + _FP_PACK_CANONICAL(Q,2,X); \ + _FP_PACK_RAW_2(Q,val,X); \ + } while (0) + +#define FP_PACK_QP(val,X) \ + do { \ + _FP_PACK_CANONICAL(Q,2,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_2_P(Q,val,X); \ + } while (0) + +#define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,2,X) +#define FP_NEG_Q(R,X) _FP_NEG(Q,2,R,X) +#define FP_ADD_Q(R,X,Y) _FP_ADD(Q,2,R,X,Y) +#define FP_SUB_Q(R,X,Y) _FP_SUB(Q,2,R,X,Y) +#define FP_MUL_Q(R,X,Y) _FP_MUL(Q,2,R,X,Y) +#define FP_DIV_Q(R,X,Y) _FP_DIV(Q,2,R,X,Y) +#define FP_SQRT_Q(R,X) _FP_SQRT(Q,2,R,X) +#define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q) + +#define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,2,r,X,Y,un) +#define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,2,r,X,Y) + +#define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,2,r,X,rsz,rsg) +#define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,2,X,r,rs,rt) + +#define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_2(X) +#define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_2(X) + +#endif /* not _FP_W_TYPE_SIZE < 64 */ diff --git a/soft-fp/single.h b/soft-fp/single.h new file mode 100644 index 0000000000..6504e52834 --- /dev/null +++ b/soft-fp/single.h @@ -0,0 +1,110 @@ +/* Software floating-point emulation. + Definitions for IEEE Single Precision. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if _FP_W_TYPE_SIZE < 32 +#error "Here's a nickel kid. Go buy yourself a real computer." +#endif + +#define _FP_FRACBITS_S 24 +#define _FP_FRACXBITS_S (_FP_W_TYPE_SIZE - _FP_FRACBITS_S) +#define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S) +#define _FP_WFRACXBITS_S (_FP_W_TYPE_SIZE - _FP_WFRACBITS_S) +#define _FP_EXPBITS_S 8 +#define _FP_EXPBIAS_S 127 +#define _FP_EXPMAX_S 255 +#define _FP_QNANBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2)) +#define _FP_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1)) +#define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S)) + +/* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be + chosen by the target machine. */ + +union _FP_UNION_S +{ + float flt; + struct { +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned sign : 1; + unsigned exp : _FP_EXPBITS_S; + unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0); +#else + unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0); + unsigned exp : _FP_EXPBITS_S; + unsigned sign : 1; +#endif + } bits __attribute__((packed)); +}; + +#define FP_DECL_S(X) _FP_DECL(1,X) +#define FP_UNPACK_RAW_S(X,val) _FP_UNPACK_RAW_1(S,X,val) +#define FP_UNPACK_RAW_SP(X,val) _FP_UNPACK_RAW_1_P(S,X,val) +#define FP_PACK_RAW_S(val,X) _FP_PACK_RAW_1(S,val,X) +#define FP_PACK_RAW_SP(val,X) \ + do { \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(S,val,X); \ + } while (0) + +#define FP_UNPACK_S(X,val) \ + do { \ + _FP_UNPACK_RAW_1(S,X,val); \ + _FP_UNPACK_CANONICAL(S,1,X); \ + } while (0) + +#define FP_UNPACK_SP(X,val) \ + do { \ + _FP_UNPACK_RAW_1_P(S,X,val); \ + _FP_UNPACK_CANONICAL(S,1,X); \ + } while (0) + +#define FP_PACK_S(val,X) \ + do { \ + _FP_PACK_CANONICAL(S,1,X); \ + _FP_PACK_RAW_1(S,val,X); \ + } while (0) + +#define FP_PACK_SP(val,X) \ + do { \ + _FP_PACK_CANONICAL(S,1,X); \ + if (!FP_INHIBIT_RESULTS) \ + _FP_PACK_RAW_1_P(S,val,X); \ + } while (0) + +#define FP_ISSIGNAN_S(X) _FP_ISSIGNAN(S,1,X) +#define FP_NEG_S(R,X) _FP_NEG(S,1,R,X) +#define FP_ADD_S(R,X,Y) _FP_ADD(S,1,R,X,Y) +#define FP_SUB_S(R,X,Y) _FP_SUB(S,1,R,X,Y) +#define FP_MUL_S(R,X,Y) _FP_MUL(S,1,R,X,Y) +#define FP_DIV_S(R,X,Y) _FP_DIV(S,1,R,X,Y) +#define FP_SQRT_S(R,X) _FP_SQRT(S,1,R,X) +#define _FP_SQRT_MEAT_S(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q) + +#define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1,r,X,Y,un) +#define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1,r,X,Y) + +#define FP_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1,r,X,rsz,rsg) +#define FP_FROM_INT_S(X,r,rs,rt) _FP_FROM_INT(S,1,X,r,rs,rt) + +#define _FP_FRAC_HIGH_S(X) _FP_FRAC_HIGH_1(X) +#define _FP_FRAC_HIGH_RAW_S(X) _FP_FRAC_HIGH_1(X) diff --git a/soft-fp/soft-fp.h b/soft-fp/soft-fp.h new file mode 100644 index 0000000000..3c5072e516 --- /dev/null +++ b/soft-fp/soft-fp.h @@ -0,0 +1,176 @@ +/* Software floating-point emulation. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef SOFT_FP_H +#define SOFT_FP_H + +#include "sfp-machine.h" + +/* Allow sfp-machine to have its own byte order definitions. */ +#ifndef __BYTE_ORDER +#include <endian.h> +#endif + +#define _FP_WORKBITS 3 +#define _FP_WORK_LSB ((_FP_W_TYPE)1 << 3) +#define _FP_WORK_ROUND ((_FP_W_TYPE)1 << 2) +#define _FP_WORK_GUARD ((_FP_W_TYPE)1 << 1) +#define _FP_WORK_STICKY ((_FP_W_TYPE)1 << 0) + +#ifndef FP_RND_NEAREST +# define FP_RND_NEAREST 0 +# define FP_RND_ZERO 1 +# define FP_RND_PINF 2 +# define FP_RND_MINF 3 +#ifndef FP_ROUNDMODE +# define FP_ROUNDMODE FP_RND_NEAREST +#endif +#endif + +/* By default don't care about exceptions. */ +#ifndef FP_EX_INVALID +#define FP_EX_INVALID 0 +#endif +#ifndef FP_EX_OVERFLOW +#define FP_EX_OVERFLOW 0 +#endif +#ifndef FP_EX_UNDERFLOW +#define FP_EX_UNDERFLOW +#endif +#ifndef FP_EX_DIVZERO +#define FP_EX_DIVZERO 0 +#endif +#ifndef FP_EX_INEXACT +#define FP_EX_INEXACT 0 +#endif +#ifndef FP_EX_DENORM +#define FP_EX_DENORM 0 +#endif + +#ifdef _FP_DECL_EX +#define FP_DECL_EX \ + int _fex = 0; \ + _FP_DECL_EX +#else +#define FP_DECL_EX int _fex = 0 +#endif + +#ifndef FP_INIT_ROUNDMODE +#define FP_INIT_ROUNDMODE do {} while (0) +#endif + +#ifndef FP_HANDLE_EXCEPTIONS +#define FP_HANDLE_EXCEPTIONS do {} while (0) +#endif + +#ifndef FP_INHIBIT_RESULTS +/* By default we write the results always. + * sfp-machine may override this and e.g. + * check if some exceptions are unmasked + * and inhibit it in such a case. + */ +#define FP_INHIBIT_RESULTS 0 +#endif + +#define FP_SET_EXCEPTION(ex) \ + _fex |= (ex) + +#define FP_UNSET_EXCEPTION(ex) \ + _fex &= ~(ex) + +#define FP_CLEAR_EXCEPTIONS \ + _fex = 0 + +#define _FP_ROUND_NEAREST(wc, X) \ +do { \ + if ((_FP_FRAC_LOW_##wc(X) & 15) != _FP_WORK_ROUND) \ + _FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \ +} while (0) + +#define _FP_ROUND_ZERO(wc, X) 0 + +#define _FP_ROUND_PINF(wc, X) \ +do { \ + if (!X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \ + _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \ +} while (0) + +#define _FP_ROUND_MINF(wc, X) \ +do { \ + if (X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \ + _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \ +} while (0) + +#define _FP_ROUND(wc, X) \ +do { \ + if (_FP_FRAC_LOW_##wc(X) & 7) \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ + switch (FP_ROUNDMODE) \ + { \ + case FP_RND_NEAREST: \ + _FP_ROUND_NEAREST(wc,X); \ + break; \ + case FP_RND_ZERO: \ + _FP_ROUND_ZERO(wc,X); \ + break; \ + case FP_RND_PINF: \ + _FP_ROUND_PINF(wc,X); \ + break; \ + case FP_RND_MINF: \ + _FP_ROUND_MINF(wc,X); \ + break; \ + } \ +} while (0) + +#define FP_CLS_NORMAL 0 +#define FP_CLS_ZERO 1 +#define FP_CLS_INF 2 +#define FP_CLS_NAN 3 + +#define _FP_CLS_COMBINE(x,y) (((x) << 2) | (y)) + +#include "op-1.h" +#include "op-2.h" +#include "op-4.h" +#include "op-8.h" +#include "op-common.h" + +/* Sigh. Silly things longlong.h needs. */ +#define UWtype _FP_W_TYPE +#define W_TYPE_SIZE _FP_W_TYPE_SIZE + +typedef int SItype __attribute__((mode(SI))); +typedef int DItype __attribute__((mode(DI))); +typedef unsigned int USItype __attribute__((mode(SI))); +typedef unsigned int UDItype __attribute__((mode(DI))); +#if _FP_W_TYPE_SIZE == 32 +typedef unsigned int UHWtype __attribute__((mode(HI))); +#elif _FP_W_TYPE_SIZE == 64 +typedef USItype UHWtype; +#endif + +#ifndef umul_ppmm +#include <stdlib/longlong.h> +#endif + +#endif diff --git a/soft-fp/sqrtdf2.c b/soft-fp/sqrtdf2.c new file mode 100644 index 0000000000..7cdaa377b4 --- /dev/null +++ b/soft-fp/sqrtdf2.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return sqrt(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +double __sqrtdf2(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); + FP_SQRT_D(R, A); + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sqrtsf2.c b/soft-fp/sqrtsf2.c new file mode 100644 index 0000000000..dd83cb9e3e --- /dev/null +++ b/soft-fp/sqrtsf2.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return sqrt(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +float __sqrtsf2(float a) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); + FP_SQRT_S(R, A); + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sqrttf2.c b/soft-fp/sqrttf2.c new file mode 100644 index 0000000000..1c5123dfc9 --- /dev/null +++ b/soft-fp/sqrttf2.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return sqrt(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double __sqrttf2(long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(R); + long double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_SQRT_Q(R, A); + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/subdf3.c b/soft-fp/subdf3.c new file mode 100644 index 0000000000..11c01cbaa8 --- /dev/null +++ b/soft-fp/subdf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a - b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" + +double __subdf3(double a, double b) +{ + FP_DECL_EX; + FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); + FP_UNPACK_D(B, b); + FP_SUB_D(R, A, B); + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/subsf3.c b/soft-fp/subsf3.c new file mode 100644 index 0000000000..5942479eb3 --- /dev/null +++ b/soft-fp/subsf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a - b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" + +float __subsf3(float a, float b) +{ + FP_DECL_EX; + FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); + FP_UNPACK_S(B, b); + FP_SUB_S(R, A, B); + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/subtf3.c b/soft-fp/subtf3.c new file mode 100644 index 0000000000..f3d29af591 --- /dev/null +++ b/soft-fp/subtf3.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return a - b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double __subtf3(long double a, long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(R); + long double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_SUB_Q(R, A, B); + FP_PACK_Q(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/alpha/sfp-machine.h b/soft-fp/sysdeps/alpha/sfp-machine.h new file mode 100644 index 0000000000..73b934ddce --- /dev/null +++ b/soft-fp/sysdeps/alpha/sfp-machine.h @@ -0,0 +1,35 @@ +#define _FP_W_TYPE_SIZE 64 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _alpha_mul_64_128(rhi, rlo, x, y) \ + __asm__("umulh %2,%3,%0; mulq %2,%3,%1" \ + : "=&r"(rhi), "=r"(rlo) : "r"(x), "r"(y)) + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,_alpha_mul_64_128) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,_alpha_mul_64_128) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S _FP_QNANBIT_S +#define _FP_NANFRAC_D _FP_QNANBIT_D +#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0 +/* FIXME: This is just a wild guess */ +#define _FP_NANSIGN_S 1 +#define _FP_NANSIGN_D 1 +#define _FP_NANSIGN_Q 1 + +#define _FP_KEEPNANFRACP 1 +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + R##_c = FP_CLS_NAN; \ + } while (0) diff --git a/soft-fp/sysdeps/i386/sfp-machine.h b/soft-fp/sysdeps/i386/sfp-machine.h new file mode 100644 index 0000000000..047452b905 --- /dev/null +++ b/soft-fp/sysdeps/i386/sfp-machine.h @@ -0,0 +1,87 @@ +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define __FP_FRAC_ADD_2(rh, rl, xh, xl, yh, yl) \ + __asm__("addl %5,%1; adcl %3,%0" \ + : "=r"(rh), "=r"(rl) \ + : "%0"(xh), "g"(yh), "%1"(xl), "g"(yl) \ + : "cc") + +#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + __asm__ volatile("addl %5,%1; adcl %3,%0" \ + : "=r"(r1), "=r"(r0) \ + : "%0"(x1), "g"(y1), "%1"(x0), "g"(y0) \ + : "cc"); \ + __asm__ volatile("adcl %5,%1; adcl %3,%0" \ + : "=r"(r3), "=r"(r2) \ + : "%0"(x3), "g"(y3), "%1"(x2), "g"(y2) \ + : "cc"); \ + } while (0) + +#define __FP_FRAC_SUB_2(rh, rl, xh, xl, yh, yl) \ + __asm__("subl %5,%1; sbbl %4,%0" \ + : "=r"(rh), "=r"(rl) \ + : "0"(xh), "1"(xl), "g"(yh), "g"(yl) \ + : "cc") + +#define __FP_CLZ(r, x) \ + do { \ + __asm__("bsrl %1,%0" : "=r"(r) : "g"(x) : "cc"); \ + r ^= 31; \ + } while (0) + +#define _i386_mul_32_64(rh, rl, x, y) \ + __asm__("mull %2" : "=d"(rh), "=a"(rl) : "%g"(x), "1"(y) : "cc") + +#define _i386_div_64_32(q, r, nh, nl, d) \ + __asm__ ("divl %4" : "=a"(q), "=d"(r) : "0"(nl), "1"(nh), "g"(d) : "cc") + + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,_i386_mul_32_64) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,_i386_mul_32_64) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) + +#define _FP_NANFRAC_S _FP_QNANBIT_S +#define _FP_NANFRAC_D _FP_QNANBIT_D, 0 +#define _FP_NANSIGN_S 1 +#define _FP_NANSIGN_D 1 + +#define _FP_KEEPNANFRACP 1 +/* Here is something Intel misdesigned: the specs don't define + the case where we have two NaNs with same mantissas, but + different sign. Different operations pick up different NaNs. + */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if (_FP_FRAC_GT_##wc(X, Y) \ + || (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + else \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define FP_EX_INVALID (1 << 0) +#define FP_EX_DENORM (1 << 1) +#define FP_EX_DIVZERO (1 << 2) +#define FP_EX_OVERFLOW (1 << 3) +#define FP_EX_UNDERFLOW (1 << 4) +#define FP_EX_INEXACT (1 << 5) + +#define FP_RND_NEAREST 0 +#define FP_RND_ZERO 3 +#define FP_RND_PINF 2 +#define FP_RND_MINF 1 diff --git a/soft-fp/sysdeps/mips/mips64/sfp-machine.h b/soft-fp/sysdeps/mips/mips64/sfp-machine.h new file mode 100644 index 0000000000..3f9d3abb8c --- /dev/null +++ b/soft-fp/sysdeps/mips/mips64/sfp-machine.h @@ -0,0 +1,47 @@ +#define _FP_W_TYPE_SIZE 64 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_2_wide_3mul(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1) +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 +/* From my experiments it seems X is chosen unless one of the + NaNs is sNaN, in which case the result is NANSIGN/NANFRAC. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) | \ + _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs) \ + { \ + R##_s = _FP_NANSIGN_##fs; \ + _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define FP_EX_INVALID (1 << 4) +#define FP_EX_DIVZERO (1 << 3) +#define FP_EX_OVERFLOW (1 << 2) +#define FP_EX_UNDERFLOW (1 << 1) +#define FP_EX_INEXACT (1 << 0) diff --git a/soft-fp/sysdeps/mips/sfp-machine.h b/soft-fp/sysdeps/mips/sfp-machine.h new file mode 100644 index 0000000000..575225a69b --- /dev/null +++ b/soft-fp/sysdeps/mips/sfp-machine.h @@ -0,0 +1,47 @@ +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 +/* From my experiments it seems X is chosen unless one of the + NaNs is sNaN, in which case the result is NANSIGN/NANFRAC. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) | \ + _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs) \ + { \ + R##_s = _FP_NANSIGN_##fs; \ + _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +#define FP_EX_INVALID (1 << 4) +#define FP_EX_DIVZERO (1 << 3) +#define FP_EX_OVERFLOW (1 << 2) +#define FP_EX_UNDERFLOW (1 << 1) +#define FP_EX_INEXACT (1 << 0) diff --git a/soft-fp/sysdeps/powerpc/sfp-machine.h b/soft-fp/sysdeps/powerpc/sfp-machine.h new file mode 100644 index 0000000000..6d68f01ca3 --- /dev/null +++ b/soft-fp/sysdeps/powerpc/sfp-machine.h @@ -0,0 +1,48 @@ +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* Someone please check this. */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +/* Exception flags. */ +#define FP_EX_INVALID (1 << 4) +#define FP_EX_OVERFLOW (1 << 3) +#define FP_EX_UNDERFLOW (1 << 2) +#define FP_EX_DIVZERO (1 << 1) +#define FP_EX_INEXACT (1 << 0) diff --git a/soft-fp/sysdeps/sparc/sparc32/Makefile b/soft-fp/sysdeps/sparc/sparc32/Makefile new file mode 100644 index 0000000000..71a34f93e0 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/Makefile @@ -0,0 +1,31 @@ +# Software floating-point emulation. +# Makefile for SPARC v8 long double utility functions (_Q_*). +# Copyright (C) 1999 Free Software Foundation, Inc. +# This file is part of the GNU C Library. +# Contributed by Jakub Jelinek (jj@ultra.linux.cz). +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Library General Public License as +# published by the Free Software Foundation; either version 2 of the +# License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Library General Public License for more details. +# +# You should have received a copy of the GNU Library General Public +# License along with the GNU C Library; see the file COPYING.LIB. If +# not, write to the Free Software Foundation, Inc., +# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +# Currently gcc does not support TFmode long double on sparc32 +# so these routines are not used. +#ifeq ($(subdir),soft-fp) +#sparc32-quad-routines := q_add q_cmp q_cmpe q_div q_dtoq q_feq q_fge \ +# q_fgt q_fle q_flt q_fne q_itoq q_mul q_neg q_qtod q_qtoi \ +# q_qtos q_qtoui q_qtoux q_qtox q_sqrt q_stoq q_sub q_uitoq \ +# q_uxtoq q_xtoq q_util +#routines += $(sparc32-quad-routines) +# +#endif diff --git a/soft-fp/sysdeps/sparc/sparc32/q_add.c b/soft-fp/sysdeps/sparc/sparc32/q_add.c new file mode 100644 index 0000000000..b2d3f2e912 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_add.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return a + b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_add(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + long double c; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_ADD_Q(C, A, B); + FP_PACK_Q(c, C); + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_cmp.c b/soft-fp/sysdeps/sparc/sparc32/q_cmp.c new file mode 100644 index 0000000000..87535f9bfd --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_cmp.c @@ -0,0 +1,41 @@ +/* Software floating-point emulation. + Compare a and b, return float condition code. + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Q_cmp(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == -1) r = 2; + if (r == 3 && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_cmpe.c b/soft-fp/sysdeps/sparc/sparc32/q_cmpe.c new file mode 100644 index 0000000000..ddc880ac5a --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_cmpe.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + Compare a and b, return float condition code. + Signal exception (unless masked) if unordered. + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Q_cmpe(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == -1) r = 2; + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_div.c b/soft-fp/sysdeps/sparc/sparc32/q_div.c new file mode 100644 index 0000000000..477f3979b9 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_div.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return a / b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_div(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + long double c; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_DIV_Q(C, A, B); + FP_PACK_Q(c, C); + FP_HANDLE_EXCEPTIONS; + return long double; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_dtoq.c b/soft-fp/sysdeps/sparc/sparc32/q_dtoq.c new file mode 100644 index 0000000000..28daa2c36f --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_dtoq.c @@ -0,0 +1,44 @@ +/* Software floating-point emulation. + Return (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +long double _Q_dtoq(const double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_Q(C); + long double c; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(Q,D,4,2,C,A); +#else + FP_CONV(Q,D,2,1,C,A); +#endif + FP_PACK_Q(c, C); + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_feq.c b/soft-fp/sysdeps/sparc/sparc32/q_feq.c new file mode 100644 index 0000000000..5289116293 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_feq.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return 1 if a == b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Q_feq(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_EQ_Q(r, A, B); + if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return !r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_fge.c b/soft-fp/sysdeps/sparc/sparc32/q_fge.c new file mode 100644 index 0000000000..f4bc61335e --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_fge.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return 1 if a >= b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Q_fge(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return (r <= 0); +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_fgt.c b/soft-fp/sysdeps/sparc/sparc32/q_fgt.c new file mode 100644 index 0000000000..ad2c5cbcca --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_fgt.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return 1 if a > b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Q_fgt(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return (r == -1); +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_fle.c b/soft-fp/sysdeps/sparc/sparc32/q_fle.c new file mode 100644 index 0000000000..ffd3c009b7 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_fle.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return 1 if a <= b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Q_fle(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, B, A, -2); + if (r == -2) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return (r >= 0); +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_flt.c b/soft-fp/sysdeps/sparc/sparc32/q_flt.c new file mode 100644 index 0000000000..20c2e1ff15 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_flt.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return 1 if a < b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Q_flt(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return (r == 1); +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_fne.c b/soft-fp/sysdeps/sparc/sparc32/q_fne.c new file mode 100644 index 0000000000..f885ddbfe9 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_fne.c @@ -0,0 +1,40 @@ +/* Software floating-point emulation. + Return 1 if a != b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Q_fne(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_EQ_Q(r, A, B); + if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_itoq.c b/soft-fp/sysdeps/sparc/sparc32/q_itoq.c new file mode 100644 index 0000000000..97af1483f9 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_itoq.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + Return (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_itoq(const int a) +{ + FP_DECL_EX; + FP_DECL_Q(C); + int b = a; + long double c; + + FP_FROM_INT_Q(C, b, 32, int); + FP_PACK_Q(c, C); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_mul.c b/soft-fp/sysdeps/sparc/sparc32/q_mul.c new file mode 100644 index 0000000000..2ce0ceb564 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_mul.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + Return a * b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_mul(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + long double c; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_MUL_Q(C, A, B); + FP_PACK_Q(c, C); + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_neg.c b/soft-fp/sysdeps/sparc/sparc32/q_neg.c new file mode 100644 index 0000000000..a1a5f2de92 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_neg.c @@ -0,0 +1,47 @@ +/* Software floating-point emulation. + Return !a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_neg(const long double a) +{ + FP_DECL_EX; + long double c = a; + +#if (__BYTE_ORDER == __BIG_ENDIAN) + ((UWtype *)&c)[0] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 64) + ((UWtype *)&c)[1] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 32) + ((UWtype *)&c)[3] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#else + FP_DECL_Q(A); FP_DECL_Q(C); + + FP_UNPACK_Q(A, a); + FP_NEG_Q(C, A); + FP_PACK_Q(c, C); +#endif + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_qtod.c b/soft-fp/sysdeps/sparc/sparc32/q_qtod.c new file mode 100644 index 0000000000..92874502ea --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_qtod.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Return (double)a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +double _Q_qtod(const long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(D,Q,2,4,R,A); +#else + FP_CONV(D,Q,1,2,R,A); +#endif + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_qtoi.c b/soft-fp/sysdeps/sparc/sparc32/q_qtoi.c new file mode 100644 index 0000000000..b472364cdb --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_qtoi.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + Return (int)a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define FP_ROUNDMODE FP_RND_ZERO +#include "soft-fp.h" +#include "quad.h" + +int _Q_qtoi(const long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + int r; + + FP_UNPACK_Q(A, a); + FP_TO_INT_Q(r, A, 32, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_qtos.c b/soft-fp/sysdeps/sparc/sparc32/q_qtos.c new file mode 100644 index 0000000000..b0945cb318 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_qtos.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Return (float)a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "quad.h" + +float _Q_qtos(const long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(S,Q,1,4,R,A); +#else + FP_CONV(S,Q,1,2,R,A); +#endif + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_qtoui.c b/soft-fp/sysdeps/sparc/sparc32/q_qtoui.c new file mode 100644 index 0000000000..c2de37f15e --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_qtoui.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + Return (unsigned int)a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define FP_ROUNDMODE FP_RND_ZERO +#include "soft-fp.h" +#include "quad.h" + +unsigned int _Q_qtoui(const long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + unsigned int r; + + FP_UNPACK_Q(A, a); + FP_TO_INT_Q(r, A, 32, -1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_qtoux.c b/soft-fp/sysdeps/sparc/sparc32/q_qtoux.c new file mode 100644 index 0000000000..ff1e1a9edb --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_qtoux.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + Return (unsigned long)a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define FP_ROUNDMODE FP_RND_ZERO +#include "soft-fp.h" +#include "quad.h" + +unsigned long long _Q_qtoux(const long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + unsigned long long r; + + FP_UNPACK_Q(A, a); + FP_TO_INT_Q(r, A, 64, -1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_qtox.c b/soft-fp/sysdeps/sparc/sparc32/q_qtox.c new file mode 100644 index 0000000000..ba591606dc --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_qtox.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + Return (long)a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define FP_ROUNDMODE FP_RND_ZERO +#include "soft-fp.h" +#include "quad.h" + +long long _Q_qtox(const long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + long long r; + + FP_UNPACK_Q(A, a); + FP_TO_INT_Q(r, A, 64, 1); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_sqrt.c b/soft-fp/sysdeps/sparc/sparc32/q_sqrt.c new file mode 100644 index 0000000000..2f759284a0 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_sqrt.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + Return sqrtl(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_sqrt(const long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(C); + long double c; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_SQRT_Q(C, A); + FP_PACK_Q(c, C); + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_stoq.c b/soft-fp/sysdeps/sparc/sparc32/q_stoq.c new file mode 100644 index 0000000000..ad5153da3c --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_stoq.c @@ -0,0 +1,43 @@ +/* Software floating-point emulation. + c = (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "quad.h" + +long double _Q_stoq(const float a) +{ + FP_DECL_EX; + FP_DECL_S(A); + FP_DECL_Q(C); + long double c; + + FP_UNPACK_S(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(Q,S,4,1,C,A); +#else + FP_CONV(Q,S,2,1,C,A); +#endif + FP_PACK_Q(c, C); + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_sub.c b/soft-fp/sysdeps/sparc/sparc32/q_sub.c new file mode 100644 index 0000000000..2cfd49d26a --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_sub.c @@ -0,0 +1,39 @@ +/* Software floating-point emulation. + c = a - b + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_sub(const long double a, const long double b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + long double c; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); + FP_UNPACK_Q(B, b); + FP_SUB_Q(C, A, B); + FP_PACK_Q(c, C); + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_uitoq.c b/soft-fp/sysdeps/sparc/sparc32/q_uitoq.c new file mode 100644 index 0000000000..8a3c664f1d --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_uitoq.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + c = (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_uitoq(const unsigned int a) +{ + FP_DECL_EX; + FP_DECL_Q(C); + long double c; + unsigned int b = a; + + FP_FROM_INT_Q(C, b, 32, int); + FP_PACK_Q(c, C); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_util.c b/soft-fp/sysdeps/sparc/sparc32/q_util.c new file mode 100644 index 0000000000..df4d16c019 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_util.c @@ -0,0 +1,57 @@ +/* Software floating-point emulation. + Helper routine for _Q_* routines. + Simulate exceptions using double arithmetics. + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" + +unsigned long long ___Q_numbers [] = { +0x0000000000000000ULL, /* Zero */ +0x0010100000000000ULL, /* Very tiny number */ +0x0010000000000000ULL, /* Minimum normalized number */ +0x7fef000000000000ULL, /* A huge double number */ +}; + +double ___Q_simulate_exceptions(int exceptions) +{ + double d, *p = (double *)___Q_numbers; + if (exceptions & FP_EX_INVALID) + d = p[0]/p[0]; + if (exceptions & FP_EX_OVERFLOW) + { + d = p[3] + p[3]; + exceptions &= ~FP_EX_INEXACT; + } + if (exceptions & FP_EX_UNDERFLOW) + { + if (exceptions & FP_EX_INEXACT) + { + d = p[2] * p[2]; + exceptions &= ~FP_EX_INEXACT; + } + else + d = p[1] - p[2]; + } + if (exceptions & FP_EX_DIVZERO) + d = 1.0/p[0]; + if (exceptions & FP_EX_INEXACT) + d = p[3] - p[2]; + return d; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_uxtoq.c b/soft-fp/sysdeps/sparc/sparc32/q_uxtoq.c new file mode 100644 index 0000000000..ee68ca2563 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_uxtoq.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + Return (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_uxtoq(const unsigned long long a) +{ + FP_DECL_EX; + FP_DECL_Q(C); + long double c; + unsigned long long b = a; + + FP_FROM_INT_Q(C, b, 64, long long); + FP_PACK_Q(c, C); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/q_xtoq.c b/soft-fp/sysdeps/sparc/sparc32/q_xtoq.c new file mode 100644 index 0000000000..3dd70b9329 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/q_xtoq.c @@ -0,0 +1,38 @@ +/* Software floating-point emulation. + Return (long double)a + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_xtoq(const long long a) +{ + FP_DECL_EX; + FP_DECL_Q(C); + long double c; + long long b = a; + + FP_FROM_INT_Q(C, b, 64, long long); + FP_PACK_Q(c, C); + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + return c; +} diff --git a/soft-fp/sysdeps/sparc/sparc32/sfp-machine.h b/soft-fp/sysdeps/sparc/sparc32/sfp-machine.h new file mode 100644 index 0000000000..d3713b96d7 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc32/sfp-machine.h @@ -0,0 +1,221 @@ +/* Machine-dependent software floating-point definitions. + Sparc userland (_Q_*) version. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz) and + David S. Miller (davem@redhat.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include <fpu_control.h> + +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* If one NaN is signaling and the other is not, + * we choose that one, otherwise we choose X. + */ +/* For _Qp_* and _Q_*, this should prefer X, for + * CPU instruction emulation this should prefer Y. + * (see SPAMv9 B.2.2 section). + */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +/* Some assembly to speed things up. */ +#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ + __asm__ ("addcc %r7,%8,%2 + addxcc %r5,%6,%1 + addx %r3,%4,%0" \ + : "=r" ((USItype)(r2)), \ + "=&r" ((USItype)(r1)), \ + "=&r" ((USItype)(r0)) \ + : "%rJ" ((USItype)(x2)), \ + "rI" ((USItype)(y2)), \ + "%rJ" ((USItype)(x1)), \ + "rI" ((USItype)(y1)), \ + "%rJ" ((USItype)(x0)), \ + "rI" ((USItype)(y0)) \ + : "cc") + +#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) \ + __asm__ ("subcc %r7,%8,%2 + subxcc %r5,%6,%1 + subx %r3,%4,%0" \ + : "=r" ((USItype)(r2)), \ + "=&r" ((USItype)(r1)), \ + "=&r" ((USItype)(r0)) \ + : "%rJ" ((USItype)(x2)), \ + "rI" ((USItype)(y2)), \ + "%rJ" ((USItype)(x1)), \ + "rI" ((USItype)(y1)), \ + "%rJ" ((USItype)(x0)), \ + "rI" ((USItype)(y0)) \ + : "cc") + +#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + /* We need to fool gcc, as we need to pass more than 10 \ + input/outputs. */ \ + register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2"); \ + __asm__ __volatile__ (" + addcc %r8,%9,%1 + addxcc %r6,%7,%0 + addxcc %r4,%5,%%g2 + addx %r2,%3,%%g1" \ + : "=&r" ((USItype)(r1)), \ + "=&r" ((USItype)(r0)) \ + : "%rJ" ((USItype)(x3)), \ + "rI" ((USItype)(y3)), \ + "%rJ" ((USItype)(x2)), \ + "rI" ((USItype)(y2)), \ + "%rJ" ((USItype)(x1)), \ + "rI" ((USItype)(y1)), \ + "%rJ" ((USItype)(x0)), \ + "rI" ((USItype)(y0)) \ + : "cc", "g1", "g2"); \ + __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2)); \ + r3 = _t1; r2 = _t2; \ + } while (0) + +#define __FP_FRAC_SUB_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \ + do { \ + /* We need to fool gcc, as we need to pass more than 10 \ + input/outputs. */ \ + register USItype _t1 __asm__ ("g1"), _t2 __asm__ ("g2"); \ + __asm__ __volatile__ (" + subcc %r8,%9,%1 + subxcc %r6,%7,%0 + subxcc %r4,%5,%%g2 + subx %r2,%3,%%g1" \ + : "=&r" ((USItype)(r1)), \ + "=&r" ((USItype)(r0)) \ + : "%rJ" ((USItype)(x3)), \ + "rI" ((USItype)(y3)), \ + "%rJ" ((USItype)(x2)), \ + "rI" ((USItype)(y2)), \ + "%rJ" ((USItype)(x1)), \ + "rI" ((USItype)(y1)), \ + "%rJ" ((USItype)(x0)), \ + "rI" ((USItype)(y0)) \ + : "cc", "g1", "g2"); \ + __asm__ __volatile__ ("" : "=r" (_t1), "=r" (_t2)); \ + r3 = _t1; r2 = _t2; \ + } while (0) + +#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) __FP_FRAC_SUB_3(x2,x1,x0,x2,x1,x0,y2,y1,y0) + +#define __FP_FRAC_DEC_4(x3,x2,x1,x0,y3,y2,y1,y0) __FP_FRAC_SUB_4(x3,x2,x1,x0,x3,x2,x1,x0,y3,y2,y1,y0) + +#define __FP_FRAC_ADDI_4(x3,x2,x1,x0,i) \ + __asm__ ("addcc %3,%4,%3 + addxcc %2,%%g0,%2 + addxcc %1,%%g0,%1 + addx %0,%%g0,%0" \ + : "=&r" ((USItype)(x3)), \ + "=&r" ((USItype)(x2)), \ + "=&r" ((USItype)(x1)), \ + "=&r" ((USItype)(x0)) \ + : "rI" ((USItype)(i)), \ + "0" ((USItype)(x3)), \ + "1" ((USItype)(x2)), \ + "2" ((USItype)(x1)), \ + "3" ((USItype)(x0)) \ + : "cc") + +/* Obtain the current rounding mode. */ +#ifndef FP_ROUNDMODE +#define FP_ROUNDMODE ((_fcw >> 30) & 0x3) +#endif + +/* Exception flags. */ +#define FP_EX_INVALID (1 << 4) +#define FP_EX_OVERFLOW (1 << 3) +#define FP_EX_UNDERFLOW (1 << 2) +#define FP_EX_DIVZERO (1 << 1) +#define FP_EX_INEXACT (1 << 0) + +#define _FP_DECL_EX fpu_control_t _fcw + +#define FP_INIT_ROUNDMODE \ +do { \ + _FPU_GETCW(_fcw); \ +} while (0) + +/* Simulate exceptions using double arithmetics. */ +extern double ___Q_simulate_exceptions(int exc); + +#define FP_HANDLE_EXCEPTIONS \ +do { \ + if (!_fex) \ + { \ + /* This is the common case, so we do it inline. \ + * We need to clear cexc bits if any. \ + */ \ + extern unsigned long long ___Q_numbers[]; \ + __asm__ __volatile__(" + ldd [%0], %%f30 + faddd %%f30, %%f30, %%f30 + " : : "r" (___Q_numbers) : "f30"); \ + } \ + else \ + { \ + __asm__ __volatile__(" + mov %0, %%o0 + mov %%o7, %%g1 + call ___Q_simulate_exceptions + mov %%g1, %%o7 + " : : "r" (_fex) : \ + "g1", "g2", "g3", "g4", "g5", "o0", \ + "o1", "o2", "o3", "o4", "o5", "cc"); \ + } \ +} while (0) diff --git a/soft-fp/sysdeps/sparc/sparc64/Makefile b/soft-fp/sysdeps/sparc/sparc64/Makefile new file mode 100644 index 0000000000..3e912e5533 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/Makefile @@ -0,0 +1,33 @@ +# Software floating-point emulation. +# Makefile for SPARC v9 ABI mandated long double utility +# functions (_Qp_*). +# Copyright (C) 1999 Free Software Foundation, Inc. +# This file is part of the GNU C Library. +# Contributed by Jakub Jelinek (jj@ultra.linux.cz). +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Library General Public License as +# published by the Free Software Foundation; either version 2 of the +# License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Library General Public License for more details. +# +# You should have received a copy of the GNU Library General Public +# License along with the GNU C Library; see the file COPYING.LIB. If +# not, write to the Free Software Foundation, Inc., +# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +ifeq ($(subdir),soft-fp) +sparc64-quad-routines := qp_add qp_cmp qp_cmpe qp_div qp_dtoq qp_feq qp_fge \ + qp_fgt qp_fle qp_flt qp_fne qp_itoq qp_mul qp_neg qp_qtod qp_qtoi \ + qp_qtos qp_qtoui qp_qtoux qp_qtox qp_sqrt qp_stoq qp_sub qp_uitoq \ + qp_uxtoq qp_xtoq qp_util +routines += $(sparc64-quad-routines) +endif + +ifeq ($(subdir),math) +CPPFLAGS += -I../soft-fp/ +endif diff --git a/soft-fp/sysdeps/sparc/sparc64/Versions b/soft-fp/sysdeps/sparc/sparc64/Versions new file mode 100644 index 0000000000..599708ae80 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/Versions @@ -0,0 +1,7 @@ +libc { + GLIBC_2.1.1 { + _Qp_add; _Qp_cmp; _Qp_cmpe; _Qp_div; _Qp_dtoq; _Qp_feq; _Qp_fge; _Qp_fgt; + _Qp_fle; _Qp_flt; _Qp_fne; _Qp_itoq; _Qp_mul; _Qp_neg; _Qp_qtod; _Qp_qtoi; + _Qp_qtos; _Qp_qtoui; _Qp_qtoux; _Qp_qtox; _Qp_sqrt; _Qp_stoq; _Qp_sub; + _Qp_uitoq; _Qp_uxtoq; _Qp_xtoq; __Qp_handle_exceptions; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_add.c b/soft-fp/sysdeps/sparc/sparc64/qp_add.c new file mode 100644 index 0000000000..b77f4d49c6 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_add.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + (*c) = (*a) + (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +void _Qp_add(long double *c, const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_UNPACK_QP(B, b); + FP_ADD_Q(C, A, B); + FP_PACK_QP(c, C); + QP_HANDLE_EXCEPTIONS(__asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + ldd [%2], %%f56 + ldd [%2+8], %%f58 + faddq %%f52, %%f56, %%f60 + std %%f60, [%0] + std %%f62, [%0+8] + " : : "r" (c), "r" (a), "r" (b) : QP_CLOBBER)); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_cmp.c b/soft-fp/sysdeps/sparc/sparc64/qp_cmp.c new file mode 100644 index 0000000000..739fb5e910 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_cmp.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Compare (*a) and (*b), return float condition code. + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_cmp(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == -1) r = 2; + if (r == 3 && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3)); + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_cmpe.c b/soft-fp/sysdeps/sparc/sparc64/qp_cmpe.c new file mode 100644 index 0000000000..d881f904df --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_cmpe.c @@ -0,0 +1,52 @@ +/* Software floating-point emulation. + Compare (*a) and (*b), return float condition code. + Signal exception (unless masked) if unordered. + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_cmpe(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == -1) r = 2; + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpeq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3)); + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_div.c b/soft-fp/sysdeps/sparc/sparc64/qp_div.c new file mode 100644 index 0000000000..c79ac1b392 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_div.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + (*c) = (*a) / (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +void _Qp_div(long double *c, const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_UNPACK_QP(B, b); + FP_DIV_Q(C, A, B); + FP_PACK_QP(c, C); + QP_HANDLE_EXCEPTIONS(__asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + ldd [%2], %%f56 + ldd [%2+8], %%f58 + fdivq %%f52, %%f56, %%f60 + std %%f60, [%0] + std %%f62, [%0+8] + " : : "r" (c), "r" (a), "r" (b) : QP_CLOBBER)); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_dtoq.c b/soft-fp/sysdeps/sparc/sparc64/qp_dtoq.c new file mode 100644 index 0000000000..079b6d08d5 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_dtoq.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + (*c) = (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +void _Qp_dtoq(long double *c, const double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(Q,D,4,2,C,A); +#else + FP_CONV(Q,D,2,1,C,A); +#endif + FP_PACK_QP(c, C); + QP_HANDLE_EXCEPTIONS(__asm ( + "fdtoq %1, %%f60 + std %%f60, [%0] + std %%f62, [%0+8] + " : : "r" (c), "e" (a) : QP_CLOBBER)); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_feq.c b/soft-fp/sysdeps/sparc/sparc64/qp_feq.c new file mode 100644 index 0000000000..1d32ec6fe7 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_feq.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 1 if (*a) == (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_feq(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_EQ_Q(r, A, B); + if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3)); + + return !r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_fge.c b/soft-fp/sysdeps/sparc/sparc64/qp_fge.c new file mode 100644 index 0000000000..6d73745cdb --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_fge.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 1 if (*a) >= (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_fge(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpeq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 1)); + + return (r <= 0); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_fgt.c b/soft-fp/sysdeps/sparc/sparc64/qp_fgt.c new file mode 100644 index 0000000000..e389fd9d41 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_fgt.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 1 if (*a) > (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_fgt(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpeq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3) - 3); + + return (r == -1); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_fle.c b/soft-fp/sysdeps/sparc/sparc64/qp_fle.c new file mode 100644 index 0000000000..2afe2af86f --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_fle.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 1 if (*a) <= (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_fle(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_Q(r, B, A, -2); + if (r == -2) + FP_SET_EXCEPTION(FP_EX_INVALID); + + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpeq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 2) ? -1 : 0); + + return (r >= 0); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_flt.c b/soft-fp/sysdeps/sparc/sparc64/qp_flt.c new file mode 100644 index 0000000000..42c8659301 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_flt.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 1 if (*a) < (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_flt(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpeq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3)); + + return (r == 1); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_fne.c b/soft-fp/sysdeps/sparc/sparc64/qp_fne.c new file mode 100644 index 0000000000..bcc1ec2ee7 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_fne.c @@ -0,0 +1,52 @@ +/* Software floating-point emulation. + Return 1 if (*a) != (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_fne(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_EQ_Q(r, A, B); + if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3) != 0); + + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_itoq.c b/soft-fp/sysdeps/sparc/sparc64/qp_itoq.c new file mode 100644 index 0000000000..b1b80ac8a0 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_itoq.c @@ -0,0 +1,35 @@ +/* Software floating-point emulation. + (*c) = (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +void _Qp_itoq(long double *c, const int a) +{ + FP_DECL_EX; + FP_DECL_Q(C); + int b = a; + + FP_FROM_INT_Q(C, b, 32, int); + FP_PACK_QP(c, C); + QP_NO_EXCEPTIONS; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_mul.c b/soft-fp/sysdeps/sparc/sparc64/qp_mul.c new file mode 100644 index 0000000000..9dbc06b989 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_mul.c @@ -0,0 +1,50 @@ +/* Software floating-point emulation. + (*c) = (*a) * (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* As QP_HANDLE_EXCEPTIONS reloads FPU control word anyway, + avoid doing it twice. */ +#define _FP_MUL_MEAT_RESET_FE do {} while (0) +#include "soft-fp.h" +#include "quad.h" + +void _Qp_mul(long double *c, const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_UNPACK_QP(B, b); + FP_MUL_Q(C, A, B); + FP_PACK_QP(c, C); + QP_HANDLE_EXCEPTIONS( + _FPU_SETCW(_fcw); + __asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + ldd [%2], %%f56 + ldd [%2+8], %%f58 + fmulq %%f52, %%f56, %%f60 + std %%f60, [%0] + std %%f62, [%0+8] + " : : "r" (c), "r" (a), "r" (b) : QP_CLOBBER)); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_neg.S b/soft-fp/sysdeps/sparc/sparc64/qp_neg.S new file mode 100644 index 0000000000..4064a8d7bd --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_neg.S @@ -0,0 +1,31 @@ +/* Quad floating-point emulation. + (*c) = !(*a) + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> + +ENTRY(_Qp_neg) + ldd [%o1], %f60 + ldd [%o1 + 8], %f62 + fnegd %f60, %f60 + std %f60, [%o0] + jmpl %o7 + 8, %g0 + std %f62, [%o0 + 8] +END(_Qp_neg) diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_qtod.c b/soft-fp/sysdeps/sparc/sparc64/qp_qtod.c new file mode 100644 index 0000000000..50c44026e1 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_qtod.c @@ -0,0 +1,49 @@ +/* Software floating-point emulation. + Return (double)(*a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +double _Qp_qtod(const long double *a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(D,Q,2,4,R,A); +#else + FP_CONV(D,Q,1,2,R,A); +#endif + FP_PACK_D(r, R); + QP_HANDLE_EXCEPTIONS(__asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + fqtod %%f52, %0 + " : "=&e" (r) : "r" (a) : QP_CLOBBER)); + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_qtoi.c b/soft-fp/sysdeps/sparc/sparc64/qp_qtoi.c new file mode 100644 index 0000000000..770c887653 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_qtoi.c @@ -0,0 +1,47 @@ +/* Software floating-point emulation. + Return (int)(*a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define FP_ROUNDMODE FP_RND_ZERO +#include "soft-fp.h" +#include "quad.h" + +int _Qp_qtoi(const long double *a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_TO_INT_Q(r, A, 32, 1); + QP_HANDLE_EXCEPTIONS( + int rx; + __asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + fqtoi %%f52, %%f60 + st %%f60, [%0] + " : : "r" (&rx), "r" (a) : QP_CLOBBER); + r = rx); + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_qtos.c b/soft-fp/sysdeps/sparc/sparc64/qp_qtos.c new file mode 100644 index 0000000000..630300ea44 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_qtos.c @@ -0,0 +1,50 @@ +/* Software floating-point emulation. + Return (float)(*a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "quad.h" + +float _Qp_qtos(const long double *a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(S,Q,1,4,R,A); +#else + FP_CONV(S,Q,1,2,R,A); +#endif + FP_PACK_S(r, R); + + QP_HANDLE_EXCEPTIONS(__asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + fqtos %%f52, %0 + " : "=&f" (r) : "r" (a) : QP_CLOBBER)); + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_qtoui.c b/soft-fp/sysdeps/sparc/sparc64/qp_qtoui.c new file mode 100644 index 0000000000..011cf73114 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_qtoui.c @@ -0,0 +1,47 @@ +/* Software floating-point emulation. + Return (unsigned int)(*a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define FP_ROUNDMODE FP_RND_ZERO +#include "soft-fp.h" +#include "quad.h" + +unsigned int _Qp_qtoui(const long double *a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + unsigned int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_TO_INT_Q(r, A, 32, -1); + QP_HANDLE_EXCEPTIONS( + int rx; + __asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + fqtoi %%f52, %%f60 + st %%f60, [%0] + " : : "r" (&rx), "r" (a) : QP_CLOBBER); + r = rx); + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_qtoux.c b/soft-fp/sysdeps/sparc/sparc64/qp_qtoux.c new file mode 100644 index 0000000000..f2a393a8e7 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_qtoux.c @@ -0,0 +1,47 @@ +/* Software floating-point emulation. + Return (unsigned long)(*a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define FP_ROUNDMODE FP_RND_ZERO +#include "soft-fp.h" +#include "quad.h" + +unsigned long _Qp_qtoux(const long double *a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + unsigned long r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_TO_INT_Q(r, A, 64, -1); + QP_HANDLE_EXCEPTIONS( + unsigned long rx; + __asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + fqtoi %%f52, %%f60 + std %%f60, [%0] + " : : "r" (&rx), "r" (a) : QP_CLOBBER); + r = rx); + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_qtox.c b/soft-fp/sysdeps/sparc/sparc64/qp_qtox.c new file mode 100644 index 0000000000..a54c5c5833 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_qtox.c @@ -0,0 +1,47 @@ +/* Software floating-point emulation. + Return (long)(*a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define FP_ROUNDMODE FP_RND_ZERO +#include "soft-fp.h" +#include "quad.h" + +long _Qp_qtox(const long double *a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + long r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_TO_INT_Q(r, A, 64, 1); + QP_HANDLE_EXCEPTIONS( + long rx; + __asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + fqtoi %%f52, %%f60 + std %%f60, [%0] + " : : "r" (&rx), "r" (a) : QP_CLOBBER); + r = rx); + + return r; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_sqrt.c b/soft-fp/sysdeps/sparc/sparc64/qp_sqrt.c new file mode 100644 index 0000000000..00e3980286 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_sqrt.c @@ -0,0 +1,42 @@ +/* Software floating-point emulation. + (*c) = sqrtl(*a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +void _Qp_sqrt(long double *c, const long double *a) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_SQRT_Q(C, A); + FP_PACK_QP(c, C); + QP_HANDLE_EXCEPTIONS(__asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + fsqrtq %%f52, %%f60 + std %%f60, [%0] + std %%f62, [%0+8] + " : : "r" (c), "r" (a) : QP_CLOBBER)); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_stoq.c b/soft-fp/sysdeps/sparc/sparc64/qp_stoq.c new file mode 100644 index 0000000000..ab0f49a0ca --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_stoq.c @@ -0,0 +1,46 @@ +/* Software floating-point emulation. + (*c) = (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "quad.h" + +void _Qp_stoq(long double *c, const float a) +{ + FP_DECL_EX; + FP_DECL_S(A); + FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_S(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(Q,S,4,1,C,A); +#else + FP_CONV(Q,S,2,1,C,A); +#endif + FP_PACK_QP(c, C); + QP_HANDLE_EXCEPTIONS(__asm ( + "fstoq %1, %%f60 + std %%f60, [%0] + std %%f62, [%0+8] + " : : "r" (c), "f" (a) : QP_CLOBBER)); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_sub.c b/soft-fp/sysdeps/sparc/sparc64/qp_sub.c new file mode 100644 index 0000000000..9532f7b817 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_sub.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + (*c) = (*a) - (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +void _Qp_sub(long double *c, const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C); + + FP_INIT_ROUNDMODE; + FP_UNPACK_QP(A, a); + FP_UNPACK_QP(B, b); + FP_SUB_Q(C, A, B); + FP_PACK_QP(c, C); + QP_HANDLE_EXCEPTIONS(__asm ( + "ldd [%1], %%f52 + ldd [%1+8], %%f54 + ldd [%2], %%f56 + ldd [%2+8], %%f58 + fsubq %%f52, %%f56, %%f60 + std %%f60, [%0] + std %%f62, [%0+8] + " : : "r" (c), "r" (a), "r" (b) : QP_CLOBBER)); +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_uitoq.c b/soft-fp/sysdeps/sparc/sparc64/qp_uitoq.c new file mode 100644 index 0000000000..e35f0c688e --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_uitoq.c @@ -0,0 +1,35 @@ +/* Software floating-point emulation. + (*c) = (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +void _Qp_uitoq(long double *c, const unsigned int a) +{ + FP_DECL_EX; + FP_DECL_Q(C); + unsigned int b = a; + + FP_FROM_INT_Q(C, b, 32, int); + FP_PACK_QP(c, C); + QP_NO_EXCEPTIONS; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_util.c b/soft-fp/sysdeps/sparc/sparc64/qp_util.c new file mode 100644 index 0000000000..3009b2212a --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_util.c @@ -0,0 +1,57 @@ +/* Software floating-point emulation. + Helper routine for _Qp_* routines. + Simulate exceptions using double arithmetics. + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" + +static unsigned long numbers [] = { +0x7fef000000000000UL, /* A huge double number */ +0x0010100000000000UL, /* Very tiny number */ +0x0010000000000000UL, /* Minimum normalized number */ +0x0000000000000000UL, /* Zero */ +}; + +double __Qp_handle_exceptions(int exceptions) +{ + double d, *p = (double *)numbers; + if (exceptions & FP_EX_INVALID) + d = p[3]/p[3]; + if (exceptions & FP_EX_OVERFLOW) + { + d = p[0] + p[0]; + exceptions &= ~FP_EX_INEXACT; + } + if (exceptions & FP_EX_UNDERFLOW) + { + if (exceptions & FP_EX_INEXACT) + { + d = p[2] * p[2]; + exceptions &= ~FP_EX_INEXACT; + } + else + d = p[1] - p[2]; + } + if (exceptions & FP_EX_DIVZERO) + d = 1.0/p[3]; + if (exceptions & FP_EX_INEXACT) + d = p[0] - p[2]; + return d; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_uxtoq.c b/soft-fp/sysdeps/sparc/sparc64/qp_uxtoq.c new file mode 100644 index 0000000000..d7442cfa71 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_uxtoq.c @@ -0,0 +1,35 @@ +/* Software floating-point emulation. + (*c) = (long double)(a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +void _Qp_uxtoq(long double *c, const unsigned long a) +{ + FP_DECL_EX; + FP_DECL_Q(C); + unsigned long b = a; + + FP_FROM_INT_Q(C, b, 64, long); + FP_PACK_QP(c, C); + QP_NO_EXCEPTIONS; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_xtoq.c b/soft-fp/sysdeps/sparc/sparc64/qp_xtoq.c new file mode 100644 index 0000000000..06cfa9adc7 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_xtoq.c @@ -0,0 +1,35 @@ +/* Software floating-point emulation. + (*c) = (long double)(*a) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +void _Qp_xtoq(long double *c, const long a) +{ + FP_DECL_EX; + FP_DECL_Q(C); + long b = a; + + FP_FROM_INT_Q(C, b, 64, long); + FP_PACK_QP(c, C); + QP_NO_EXCEPTIONS; +} diff --git a/soft-fp/sysdeps/sparc/sparc64/s_frexpl.c b/soft-fp/sysdeps/sparc/sparc64/s_frexpl.c new file mode 100644 index 0000000000..a307a7e113 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/s_frexpl.c @@ -0,0 +1,52 @@ +/* Software floating-point emulation. + frexpl(x, exp) + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* + * for non-zero x + * x = frexpl(arg,&exp); + * return a long double fp quantity x such that 0.5 <= |x| <1.0 + * and the corresponding binary exponent "exp". That is + * arg = x*2^exp. + * If arg is inf, 0.0, or NaN, then frexpl(arg,&exp) returns arg + * with *exp=0. + */ + +#include "soft-fp.h" +#include "quad.h" + +long double __frexpl(long double arg, int *exp) +{ + FP_DECL_EX; + FP_DECL_Q(A); + long double r; + + *exp = 0; + FP_UNPACK_Q(A, arg); + if (A_c != FP_CLS_NORMAL) + return arg; + *exp = A_e + 1; + A_e = -1; + FP_PACK_Q(r, A); + + return r; +} + +weak_alias (__frexpl, frexpl) diff --git a/soft-fp/sysdeps/sparc/sparc64/s_ilogbl.c b/soft-fp/sysdeps/sparc/sparc64/s_ilogbl.c new file mode 100644 index 0000000000..d3b1a51dbf --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/s_ilogbl.c @@ -0,0 +1,82 @@ +/* Software floating-point emulation. + ilogbl(x, exp) + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* ilogbl(long double x) + * return the binary exponent of non-zero x + * ilogbl(0) = 0x80000001 + * ilogbl(inf/NaN) = 0x7fffffff (no signal is raised) + */ + +#include "soft-fp.h" +#include "quad.h" +#include <math.h> + +int __ilogbl(long double x) +{ + FP_DECL_EX; + FP_DECL_Q(X); + +/* + FP_UNPACK_Q(X, x); + switch (X_c) + { + case FP_CLS_ZERO: + return FP_ILOGB0; + case FP_CLS_NAN: + case FP_CLS_INF: + return FP_ILOGBNAN; + default: + return X_e; + } + */ + FP_UNPACK_RAW_Q(X, x); + switch (X_e) + { + default: + return X_e - _FP_EXPBIAS_Q; + case 0: +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + if (_FP_FRAC_ZEROP_4(X)) + return FP_ILOGB0; + else + { + _FP_I_TYPE shift; + _FP_FRAC_CLZ_4(shift, X); + shift -= _FP_FRACXBITS_Q; + return X_e - _FP_EXPBIAS_Q - 1 + shift; + } +#else + if (_FP_FRAC_ZEROP_2(X)) + return FP_ILOGB0; + else + { + _FP_I_TYPE shift; + _FP_FRAC_CLZ_2(shift, X); + shift -= _FP_FRACXBITS_Q; + return X_e - _FP_EXPBIAS_Q - 1 + shift; + } +#endif + case _FP_EXPBIAS_Q: + return FP_ILOGBNAN; + } +} + +weak_alias (__ilogbl, ilogbl) diff --git a/soft-fp/sysdeps/sparc/sparc64/s_scalblnl.c b/soft-fp/sysdeps/sparc/sparc64/s_scalblnl.c new file mode 100644 index 0000000000..5568cfdab2 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/s_scalblnl.c @@ -0,0 +1,55 @@ +/* Software floating-point emulation. + scalblnl(x, exp) + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* + * scalblnl (long double x, long int n) + * scalblnl(x,n) returns x* 2**n computed by exponent + * manipulation rather than by actually performing an + * exponentiation or a multiplication. + */ + +#include "soft-fp.h" +#include "quad.h" + +long double __scalblnl(long double arg, int exp) +{ + FP_DECL_EX; + FP_DECL_Q(A); + long double r; + + FP_UNPACK_Q(A, arg); + switch (A_c) + { + case FP_CLS_ZERO: + return arg; + case FP_CLS_NAN: + case FP_CLS_INF: + FP_HANDLE_EXCEPTIONS; + return arg; + } + A_e += exp; + FP_PACK_Q(r, A); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +weak_alias (__scalblnl, scalblnl) diff --git a/soft-fp/sysdeps/sparc/sparc64/s_scalbnl.c b/soft-fp/sysdeps/sparc/sparc64/s_scalbnl.c new file mode 100644 index 0000000000..fb913fdd6b --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/s_scalbnl.c @@ -0,0 +1,55 @@ +/* Software floating-point emulation. + scalbnl(x, exp) + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* + * scalbnl (long double x, int n) + * scalbnl(x,n) returns x* 2**n computed by exponent + * manipulation rather than by actually performing an + * exponentiation or a multiplication. + */ + +#include "soft-fp.h" +#include "quad.h" + +long double __scalbnl(long double arg, int exp) +{ + FP_DECL_EX; + FP_DECL_Q(A); + long double r; + + FP_UNPACK_Q(A, arg); + switch (A_c) + { + case FP_CLS_ZERO: + return arg; + case FP_CLS_NAN: + case FP_CLS_INF: + FP_HANDLE_EXCEPTIONS; + return arg; + } + A_e += exp; + FP_PACK_Q(r, A); + FP_HANDLE_EXCEPTIONS; + + return r; +} + +weak_alias (__scalbnl, scalbnl) diff --git a/soft-fp/sysdeps/sparc/sparc64/sfp-machine.h b/soft-fp/sysdeps/sparc/sparc64/sfp-machine.h new file mode 100644 index 0000000000..0d82c60a30 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/sfp-machine.h @@ -0,0 +1,143 @@ +/* Machine-dependent software floating-point definitions. + Sparc64 userland (_Q_* and _Qp_*) version. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz) and + David S. Miller (davem@redhat.com). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include <fpu_control.h> +#include <fenv.h> + +#define _FP_W_TYPE_SIZE 64 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +/* Helper macros for _FP_MUL_MEAT_2_120_240_double. */ +#define _FP_MUL_MEAT_SET_FE_TZ \ +do { \ + static fpu_control_t _fetz = _FPU_RC_DOWN; \ + _FPU_SETCW(_fetz); \ +} while (0) +#ifndef _FP_MUL_MEAT_RESET_FE +#define _FP_MUL_MEAT_RESET_FE _FPU_SETCW(_fcw) +#endif + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_2_120_240_double(_FP_WFRACBITS_Q,R,X,Y, \ + _FP_MUL_MEAT_SET_FE_TZ, \ + _FP_MUL_MEAT_RESET_FE) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1) +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* If one NaN is signaling and the other is not, + * we choose that one, otherwise we choose Y. + */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + else \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +/* Obtain the current rounding mode. */ +#ifndef FP_ROUNDMODE +#define FP_ROUNDMODE ((_fcw >> 30) & 0x3) +#endif + +/* Exception flags. */ +#define FP_EX_INVALID (1 << 4) +#define FP_EX_OVERFLOW (1 << 3) +#define FP_EX_UNDERFLOW (1 << 2) +#define FP_EX_DIVZERO (1 << 1) +#define FP_EX_INEXACT (1 << 0) + +#define _FP_DECL_EX fpu_control_t _fcw + +#define FP_INIT_ROUNDMODE \ +do { \ + _FPU_GETCW(_fcw); \ +} while (0) + +#define FP_INHIBIT_RESULTS ((_fcw >> 23) & _fex) + +/* Simulate exceptions using double arithmetics. */ +extern double __Qp_handle_exceptions(int exc); + +#define FP_HANDLE_EXCEPTIONS \ +do { \ + if (!_fex) \ + { \ + /* This is the common case, so we do it inline. \ + * We need to clear cexc bits if any. \ + */ \ + __asm__ __volatile__(" + fzero %%f62 + faddd %%f62, %%f62, %%f62 + " : : : "f62"); \ + } \ + else \ + { \ + __Qp_handle_exceptions (_fex); \ + } \ +} while (0) + +#define QP_HANDLE_EXCEPTIONS(_a) \ +do { \ + if ((_fcw >> 23) & _fex) \ + { \ + _a; \ + } \ + else \ + { \ + _fcw = (_fcw & ~0x1fL) | (_fex << 5) | _fex; \ + _FPU_SETCW(_fcw); \ + } \ +} while (0) + +#define QP_NO_EXCEPTIONS \ + __asm ("fzero %%f62 + faddd %%f62, %%f62, %%f62" : : : "f62") + +#define QP_CLOBBER "memory", "f52", "f54", "f56", "f58", "f60", "f62" +#define QP_CLOBBER_CC QP_CLOBBER , "cc" diff --git a/soft-fp/testit.c b/soft-fp/testit.c new file mode 100644 index 0000000000..46a50c4401 --- /dev/null +++ b/soft-fp/testit.c @@ -0,0 +1,788 @@ +#include <stdio.h> +#include <stdlib.h> +#include <math.h> + +#include "soft-fp.h" +#include "single.h" +#include "double.h" + +#include <fpu_control.h> + +/*======================================================================*/ +/* declarations for the functions we are testing */ + +double __adddf3(double, double); +double __subdf3(double, double); +double __muldf3(double, double); +double __divdf3(double, double); +double __negdf2(double); +double __sqrtdf2(double); +double __negdf3(double a, double dummy) { return __negdf2(a); } +double __sqrtdf3(double a, double dummy) { return __sqrtdf2(a); } + +float __addsf3(float, float); +float __subsf3(float, float); +float __mulsf3(float, float); +float __divsf3(float, float); +float __negsf2(float); +float __sqrtsf2(float); +float __negsf3(float a, float dummy) { return __negsf2(a); } +float __sqrtsf3(float a, float dummy) { return __sqrtsf2(a); } + +int __fixdfsi(double); +int __fixsfsi(float); +double __floatsidf(int); +float __floatsisf(int); +double __extendsfdf2(float); +float __truncdfsf2(double); + +int __eqdf2(double, double); +int __nedf2(double, double); +int __gtdf2(double, double); +int __gedf2(double, double); +int __ltdf2(double, double); +int __ledf2(double, double); + +int __eqsf2(float, float); +int __nesf2(float, float); +int __gtsf2(float, float); +int __gesf2(float, float); +int __ltsf2(float, float); +int __lesf2(float, float); + +/*======================================================================*/ +/* definitions for functions we are checking against */ + +double r_adddf3(double a, double b) { return a + b; } +double r_subdf3(double a, double b) { return a - b; } +double r_muldf3(double a, double b) { return a * b; } +double r_divdf3(double a, double b) { return a / b; } +double r_negdf3(double a, double b) { return -a; } +double sqrt(double x); +double r_sqrtdf3(double a, double b) { return sqrt(a); } + +float r_addsf3(float a, float b) { return a + b; } +float r_subsf3(float a, float b) { return a - b; } +float r_mulsf3(float a, float b) { return a * b; } +float r_divsf3(float a, float b) { return a / b; } +float r_negsf3(float a, float b) { return -a; } +float sqrtf(float x); +float r_sqrtsf3(float a, float b) { return sqrtf(a); } + +int r_fixdfsi(double a) { return (int)a; } +int r_fixsfsi(float a) { return (int)a; } +double r_floatsidf(int a) { return (double)a; } +float r_floatsisf(int a) { return (float)a; } +double r_extendsfdf2(float a) { return (double)a; } +float r_truncdfsf2(double a) { return (float)a; } + +int r_eqdf2(double a, double b) { return !(a == b); } +int r_nedf2(double a, double b) { return a != b; } +int r_gtdf2(double a, double b) { return a > b; } +int r_gedf2(double a, double b) { return (a >= b) - 1; } +int r_ltdf2(double a, double b) { return -(a < b); } +int r_ledf2(double a, double b) { return 1 - (a <= b); } + +int r_eqsf2(float a, float b) { return !(a == b); } +int r_nesf2(float a, float b) { return a != b; } +int r_gtsf2(float a, float b) { return a > b; } +int r_gesf2(float a, float b) { return (a >= b) - 1; } +int r_ltsf2(float a, float b) { return -(a < b); } +int r_lesf2(float a, float b) { return 1 - (a <= b); } + +/*======================================================================*/ + +void print_float(float x) +{ + union _FP_UNION_S ux; + ux.flt = x; + printf("%-20.8e %X %02X %06lX", + x, ux.bits.sign, ux.bits.exp, (unsigned long)ux.bits.frac); +} + +void print_double(double x) +{ + union _FP_UNION_D ux; + ux.flt = x; +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + printf("%-30.18e %X %04X %06lX%08lX", + x, ux.bits.sign, ux.bits.exp, + (unsigned long)ux.bits.frac1, (unsigned long)ux.bits.frac0); +#else + printf("%-30.18e %X %04X %014lX", + x, ux.bits.sign, ux.bits.exp, + (unsigned long)ux.bits.frac); +#endif +} + +float rand_float(void) +{ + union { + union _FP_UNION_S u; + int i; + } u; + + u.i = lrand48() << 1; + + if (u.u.bits.exp == _FP_EXPMAX_S) + u.u.bits.exp--; + else if (u.u.bits.exp == 0 && u.u.bits.frac != 0) + u.u.bits.exp++; + + return u.u.flt; +} + + +double rand_double(void) +{ + union { + union _FP_UNION_D u; + int i[2]; + } u; + + u.i[0] = lrand48() << 1; + u.i[1] = lrand48() << 1; + + if (u.u.bits.exp == _FP_EXPMAX_D) + u.u.bits.exp--; +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + else if (u.u.bits.exp == 0 && !(u.u.bits.frac0 == 0 && u.u.bits.frac1 == 0)) + u.u.bits.exp++; +#else + else if (u.u.bits.exp == 0 && u.u.bits.frac != 0) + u.u.bits.exp++; +#endif + + return u.u.flt; +} + +#define NSPECIALS 10 + +float gen_special_float(int i) +{ + FP_DECL_EX; + FP_DECL_S(X); + float x; + + switch (i & ~1) + { + case 0: + X_c = FP_CLS_NAN; X_f = 0x1234; + break; + case 2: + X_c = FP_CLS_NAN; X_f = 0x1; + break; + case 4: + X_c = FP_CLS_INF; + break; + case 6: + X_c = FP_CLS_ZERO; + break; + case 8: + X_c = FP_CLS_NORMAL; X_e = 0; + X_f = 0x4321; + break; + } + X_s = (i & 1); + + FP_PACK_S(x, X); + return x; +} + +double gen_special_double(int i) +{ + FP_DECL_EX; + FP_DECL_D(X); + double x; + + switch (i & ~1) + { + case 0: + X_c = FP_CLS_NAN; +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + __FP_FRAC_SET_2(X, _FP_QNANBIT_D, 0x1234); +#else + _FP_FRAC_SET_1(X, _FP_QNANBIT_D | 0x1234); +#endif + break; + case 2: + X_c = FP_CLS_NAN; +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + __FP_FRAC_SET_2(X, _FP_QNANBIT_D, 0x1); +#else + _FP_FRAC_SET_1(X, _FP_QNANBIT_D | 0x1); +#endif + break; + case 4: + X_c = FP_CLS_INF; + break; + case 6: + X_c = FP_CLS_ZERO; + break; + case 8: + X_c = FP_CLS_NORMAL; X_e = 0; +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + __FP_FRAC_SET_2(X, 0, 0x87654321); +#else + _FP_FRAC_SET_1(X, 0x87654321); +#endif + break; + } + X_s = (i & 1); + + FP_PACK_D(x, X); + return x; +} + +float build_float(const char *s, const char *e, const char *f) +{ + union _FP_UNION_S u; + + u.bits.sign = strtoul(s, 0, 16); + u.bits.exp = strtoul(e, 0, 16); + u.bits.frac = strtoul(f, 0, 16); + + return u.flt; +} + +double build_double(const char *s, const char *e, const char *f) +{ + union _FP_UNION_D u; + + u.bits.sign = strtoul(s, 0, 16); + u.bits.exp = strtoul(e, 0, 16); +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + { + size_t len = strlen(f)+1; + char *dup = memcpy(alloca(len), f, len); + char *low = dup + len - _FP_W_TYPE_SIZE/4 - 1; + + u.bits.frac0 = strtoul(low, 0, 16); + *low = 0; + u.bits.frac1 = strtoul(dup, 0, 16); + } +#else + u.bits.frac = strtoul(f, 0, 16); +#endif + + return u.flt; +} + +/*======================================================================*/ + +fpu_control_t fcw0, fcw1; + +void test_float_arith(float (*tf)(float, float), + float (*rf)(float, float), + float x, float y) +{ + float tr, rr; + rr = (*rf)(x, y); + tr = (*tf)(x, y); + if (memcmp(&tr, &rr, sizeof(float)) != 0) + { + fputs("error:\n\tx = ", stdout); print_float(x); + fputs("\n\ty = ", stdout); print_float(y); + fputs("\n\ttrue = ", stdout); print_float(rr); + fputs("\n\tfalse = ", stdout); print_float(tr); + putchar('\n'); + } +} + +void test_double_arith(double (*tf)(double, double), + double (*rf)(double, double), + double x, double y) +{ + double tr, rr; +#ifdef __i386__ + /* Don't worry. Even this does not make it error free + on ia32. If the result is denormal, it will not + honour the double precision and generate bad results + anyway. On the other side, who wants to use ia32 + for IEEE math? I don't. */ + _FPU_GETCW(fcw0); + fcw1 = ((fcw0 & ~_FPU_EXTENDED) | _FPU_DOUBLE); + _FPU_SETCW(fcw1); +#endif + rr = (*rf)(x, y); +#ifdef __i386__ + _FPU_SETCW(fcw0); +#endif + tr = (*tf)(x, y); + if (memcmp(&tr, &rr, sizeof(double)) != 0) + { + fputs("error:\n\tx = ", stdout); print_double(x); + fputs("\n\ty = ", stdout); print_double(y); + fputs("\n\ttrue = ", stdout); print_double(rr); + fputs("\n\tfalse = ", stdout); print_double(tr); + putchar('\n'); + } +} + +void test_float_double_conv(float x) +{ + double tr, rr; + rr = r_extendsfdf2(x); + tr = __extendsfdf2(x); + if (memcmp(&tr, &rr, sizeof(double)) != 0) + { + fputs("error:\n\tx = ", stdout); print_float(x); + fputs("\n\ttrue = ", stdout); print_double(rr); + fputs("\n\tfalse = ", stdout); print_double(tr); + putchar('\n'); + } +} + +void test_double_float_conv(double x) +{ + float tr, rr; + rr = r_truncdfsf2(x); + tr = __truncdfsf2(x); + if (memcmp(&tr, &rr, sizeof(float)) != 0) + { + fputs("error:\n\tx = ", stdout); print_double(x); + fputs("\n\ttrue = ", stdout); print_float(rr); + fputs("\n\tfalse = ", stdout); print_float(tr); + putchar('\n'); + } +} + +void test_int_float_conv(int x) +{ + float tr, rr; + rr = r_floatsisf(x); + tr = __floatsisf(x); + if (memcmp(&tr, &rr, sizeof(float)) != 0) + { + printf("error\n\tx = %d", x); + fputs("\n\ttrue = ", stdout); print_float(rr); + fputs("\n\tfalse = ", stdout); print_float(tr); + putchar('\n'); + } +} + +void test_int_double_conv(int x) +{ + double tr, rr; + rr = r_floatsidf(x); + tr = __floatsidf(x); + if (memcmp(&tr, &rr, sizeof(double)) != 0) + { + printf("error\n\tx = %d", x); + fputs("\n\ttrue = ", stdout); print_double(rr); + fputs("\n\tfalse = ", stdout); print_double(tr); + putchar('\n'); + } +} + +void test_float_int_conv(float x) +{ + int tr, rr; + rr = r_fixsfsi(x); + tr = __fixsfsi(x); + if (rr != tr) + { + fputs("error:\n\tx = ", stdout); print_float(x); + printf("\n\ttrue = %d\n\tfalse = %d\n", rr, tr); + } +} + +void test_double_int_conv(double x) +{ + int tr, rr; + rr = r_fixsfsi(x); + tr = __fixsfsi(x); + if (rr != tr) + { + fputs("error:\n\tx = ", stdout); print_double(x); + printf("\n\ttrue = %d\n\tfalse = %d\n", rr, tr); + } +} + +int eq0(int x) { return x == 0; } +int ne0(int x) { return x != 0; } +int le0(int x) { return x <= 0; } +int lt0(int x) { return x < 0; } +int ge0(int x) { return x >= 0; } +int gt0(int x) { return x > 0; } + +void test_float_cmp(int (*tf)(float, float), + int (*rf)(float, float), + int (*cmp0)(int), + float x, float y) +{ + int tr, rr; + rr = (*rf)(x, y); + tr = (*tf)(x, y); + if (cmp0(rr) != cmp0(tr)) + { + fputs("error:\n\tx = ", stdout); print_float(x); + fputs("\n\ty = ", stdout); print_float(y); + printf("\n\ttrue = %d\n\tfalse = %d\n", rr, tr); + } +} + +void test_double_cmp(int (*tf)(double, double), + int (*rf)(double, double), + int (*cmp0)(int), + double x, double y) +{ + int tr, rr; + rr = (*rf)(x, y); + tr = (*tf)(x, y); + if (cmp0(rr) != cmp0(tr)) + { + fputs("error:\n\tx = ", stdout); print_double(x); + fputs("\n\ty = ", stdout); print_double(y); + printf("\n\ttrue = %d\n\tfalse = %d\n", rr, tr); + } +} + + +/*======================================================================*/ + + +int main(int ac, char **av) +{ +#ifdef __alpha__ + __ieee_set_fp_control(0); +#endif + av++, ac--; + switch (*(*av)++) + { + { + float (*r)(float, float); + float (*t)(float, float); + + do { + case 'a': r = r_addsf3; t = __addsf3; break; + case 's': r = r_subsf3; t = __subsf3; break; + case 'm': r = r_mulsf3; t = __mulsf3; break; + case 'd': r = r_divsf3; t = __divsf3; break; + case 'r': r = r_sqrtsf3; t = __sqrtsf3; break; + case 'j': r = r_negsf3; t = __negsf3; break; + } while (0); + + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_float_arith(t, r, rand_float(), rand_float()); + } + break; + + case 's': + { + int i, j; + for (i = 0; i < NSPECIALS; i++) + for (j = 0; j < NSPECIALS; j++) + test_float_arith(t, r, gen_special_float(i), + gen_special_float(j)); + } + break; + + case 0: + if (ac < 7) abort(); + test_float_arith(t, r, build_float(av[1], av[2], av[3]), + build_float(av[4], av[5], av[6])); + break; + } + } + break; + + { + double (*r)(double, double); + double (*t)(double, double); + + do { + case 'A': r = r_adddf3; t = __adddf3; break; + case 'S': r = r_subdf3; t = __subdf3; break; + case 'M': r = r_muldf3; t = __muldf3; break; + case 'D': r = r_divdf3; t = __divdf3; break; + case 'R': r = r_sqrtdf3; t = __sqrtdf3; break; + case 'J': r = r_negdf3; t = __negdf3; break; + } while (0); + + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_double_arith(t, r, rand_double(), rand_double()); + } + break; + + case 's': + { + int i, j; + for (i = 0; i < NSPECIALS; i++) + for (j = 0; j < NSPECIALS; j++) + test_double_arith(t, r, gen_special_double(i), + gen_special_double(j)); + } + break; + + case 0: + if (ac < 7) abort(); + test_double_arith(t, r, build_double(av[1], av[2], av[3]), + build_double(av[4], av[5], av[6])); + break; + } + } + break; + + case 'c': + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_float_double_conv(rand_float()); + } + break; + + case 's': + { + int i; + for (i = 0; i < NSPECIALS; i++) + test_float_double_conv(gen_special_float(i)); + } + break; + + case 0: + if (ac < 4) abort(); + test_float_double_conv(build_float(av[1], av[2], av[3])); + break; + } + break; + + case 'C': + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_double_float_conv(rand_double()); + } + break; + + case 's': + { + int i; + for (i = 0; i < NSPECIALS; i++) + test_double_float_conv(gen_special_double(i)); + } + break; + + case 0: + if (ac < 4) abort(); + test_double_float_conv(build_double(av[1], av[2], av[3])); + break; + } + break; + + case 'i': + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_int_float_conv(lrand48() << 1); + } + break; + + case 0: + if (ac < 2) abort(); + test_int_float_conv(strtol(av[1], 0, 0)); + break; + } + break; + + case 'I': + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_int_double_conv(lrand48() << 1); + } + break; + + case 0: + if (ac < 2) abort(); + test_int_double_conv(strtol(av[1], 0, 0)); + break; + } + break; + + case 'f': + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_float_int_conv(rand_float()); + } + break; + + case 's': + { + int i; + for (i = 0; i < NSPECIALS; i++) + test_float_int_conv(gen_special_float(i)); + } + break; + + case 0: + if (ac < 4) abort(); + test_float_int_conv(build_float(av[1], av[2], av[3])); + break; + } + break; + + case 'F': + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_double_int_conv(rand_double()); + } + break; + + case 's': + { + int i; + for (i = 0; i < NSPECIALS; i++) + test_double_int_conv(gen_special_double(i)); + } + break; + + case 0: + if (ac < 4) abort(); + test_double_int_conv(build_double(av[1], av[2], av[3])); + break; + } + break; + + { + int (*r)(float, float); + int (*t)(float, float); + int (*c)(int); + + do { + case 'e': r = r_eqsf2; t = __eqsf2; c = eq0; break; + case 'n': r = r_nesf2; t = __nesf2; c = ne0; break; + case 'l': + switch (*(*av)++) + { + case 'e': r = r_lesf2; t = __lesf2; c = le0; break; + case 't': r = r_ltsf2; t = __ltsf2; c = lt0; break; + } + break; + case 'g': + switch (*(*av)++) + { + case 'e': r = r_gesf2; t = __gesf2; c = ge0; break; + case 't': r = r_gtsf2; t = __gtsf2; c = gt0; break; + } + break; + } while (0); + + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_float_cmp(t, r, c, rand_float(), rand_float()); + } + break; + + case 's': + { + int i, j; + for (i = 0; i < NSPECIALS; i++) + for (j = 0; j < NSPECIALS; j++) + test_float_cmp(t, r, c, gen_special_float(i), + gen_special_float(j)); + } + break; + + case 0: + if (ac < 7) abort(); + test_float_cmp(t, r, c, build_float(av[1], av[2], av[3]), + build_float(av[4], av[5], av[6])); + break; + } + } + break; + + { + int (*r)(double, double); + int (*t)(double, double); + int (*c)(int); + + do { + case 'E': r = r_eqdf2; t = __eqdf2; c = eq0; break; + case 'N': r = r_nedf2; t = __nedf2; c = ne0; break; + case 'L': + switch (*(*av)++) + { + case 'E': r = r_ledf2; t = __ledf2; c = le0; break; + case 'T': r = r_ltdf2; t = __ltdf2; c = lt0; break; + } + break; + case 'G': + switch (*(*av)++) + { + case 'E': r = r_gedf2; t = __gedf2; c = ge0; break; + case 'T': r = r_gtdf2; t = __gtdf2; c = gt0; break; + } + break; + } while (0); + + switch (*(*av)++) + { + case 'n': + { + int count = (ac > 1 ? atoi(av[1]) : 100); + while (count--) + test_double_cmp(t, r, c, rand_double(), rand_double()); + } + break; + + case 's': + { + int i, j; + for (i = 0; i < NSPECIALS; i++) + for (j = 0; j < NSPECIALS; j++) + test_double_cmp(t, r, c, gen_special_double(i), + gen_special_double(j)); + } + break; + + case 0: + if (ac < 7) abort(); + test_double_cmp(t, r, c, build_double(av[1], av[2], av[3]), + build_double(av[4], av[5], av[6])); + break; + } + } + break; + + default: + abort(); + } + + return 0; +} diff --git a/soft-fp/truncdfsf2.c b/soft-fp/truncdfsf2.c new file mode 100644 index 0000000000..a97baca61d --- /dev/null +++ b/soft-fp/truncdfsf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Truncate IEEE double into IEEE single + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "double.h" + +float __truncdfsf2(double a) +{ + FP_DECL_EX; + FP_DECL_D(A); + FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_D(A, a); +#if _FP_W_TYPE_SIZE < _FP_FRACBITS_D + FP_CONV(S,D,1,2,R,A); +#else + FP_CONV(S,D,1,1,R,A); +#endif + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/trunctfdf2.c b/soft-fp/trunctfdf2.c new file mode 100644 index 0000000000..85fd241e6b --- /dev/null +++ b/soft-fp/trunctfdf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Truncate IEEE quad into IEEE double + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +double __trunctfdf2(long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(D,Q,2,4,R,A); +#else + FP_CONV(D,Q,1,2,R,A); +#endif + FP_PACK_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} diff --git a/soft-fp/trunctfsf2.c b/soft-fp/trunctfsf2.c new file mode 100644 index 0000000000..8a18b85798 --- /dev/null +++ b/soft-fp/trunctfsf2.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Truncate IEEE quad into IEEE single + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "single.h" +#include "quad.h" + +float __trunctfsf2(long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_S(R); + float r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_CONV(S,Q,1,4,R,A); +#else + FP_CONV(S,Q,1,2,R,A); +#endif + FP_PACK_S(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} |