From a598e3fc041f38d0c43be55d1664ff7ed0cf405b Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 6 Mar 2004 20:46:23 +0000 Subject: * soft-fp/quad.h (union _FP_UNION_Q): Add longs structure. * sysdeps/alpha/Implies: Add alpha/soft-fp. * sysdeps/alpha/soft-fp/sfp-machine.h: Rewrite for GEM interface. * sysdeps/alpha/Subdirs, sysdeps/alpha/soft-fp/Makefile, sysdeps/alpha/soft-fp/Versions, sysdeps/alpha/soft-fp/local-soft-fp.h, sysdeps/alpha/soft-fp/ots_add.c, sysdeps/alpha/soft-fp/ots_cmp.c, sysdeps/alpha/soft-fp/ots_cmpe.c, sysdeps/alpha/soft-fp/ots_cvtqux.c, sysdeps/alpha/soft-fp/ots_cvtqx.c, sysdeps/alpha/soft-fp/ots_cvttx.c, sysdeps/alpha/soft-fp/ots_cvtxq.c, sysdeps/alpha/soft-fp/ots_cvtxt.c, sysdeps/alpha/soft-fp/ots_div.c, sysdeps/alpha/soft-fp/ots_mul.c, sysdeps/alpha/soft-fp/ots_nintxq.c, sysdeps/alpha/soft-fp/ots_sub.c: New files. 2004-03-06 Richard Henderson * soft-fp/quad.h (union _FP_UNION_Q): Add longs structure. * sysdeps/alpha/Implies: Add alpha/soft-fp. * sysdeps/alpha/soft-fp/sfp-machine.h: Rewrite for GEM interface. * sysdeps/alpha/Subdirs, sysdeps/alpha/soft-fp/Makefile, sysdeps/alpha/soft-fp/Versions, sysdeps/alpha/soft-fp/local-soft-fp.h, sysdeps/alpha/soft-fp/ots_add.c, sysdeps/alpha/soft-fp/ots_cmp.c, sysdeps/alpha/soft-fp/ots_cmpe.c, sysdeps/alpha/soft-fp/ots_cvtqux.c, sysdeps/alpha/soft-fp/ots_cvtqx.c, sysdeps/alpha/soft-fp/ots_cvttx.c, sysdeps/alpha/soft-fp/ots_cvtxq.c, sysdeps/alpha/soft-fp/ots_cvtxt.c, sysdeps/alpha/soft-fp/ots_div.c, sysdeps/alpha/soft-fp/ots_mul.c, sysdeps/alpha/soft-fp/ots_nintxq.c, sysdeps/alpha/soft-fp/ots_sub.c: New files. --- sysdeps/alpha/soft-fp/ots_cmpe.c | 83 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 sysdeps/alpha/soft-fp/ots_cmpe.c (limited to 'sysdeps/alpha/soft-fp/ots_cmpe.c') diff --git a/sysdeps/alpha/soft-fp/ots_cmpe.c b/sysdeps/alpha/soft-fp/ots_cmpe.c new file mode 100644 index 0000000000..001eb75a9b --- /dev/null +++ b/sysdeps/alpha/soft-fp/ots_cmpe.c @@ -0,0 +1,83 @@ +/* Software floating-point emulation: comparison. + Copyright (C) 1997,1999,2004 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "local-soft-fp.h" + +static long +internal_compare (long al, long ah, long bl, long bh) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + long r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q (r, A, B, 2); + + /* Relative comparisons signal invalid operation if either operand is NaN. */ + if (r == 2) + { + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + } + + return r; +} + +long +_OtsLssX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r < 0; +} + +long +_OtsLeqX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r <= 0; +} + +long +_OtsGtrX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r > 0; +} + +long +_OtsGeqX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r >= 0; +} -- cgit 1.4.1