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author | Ulrich Drepper <drepper@redhat.com> | 1999-07-06 16:26:03 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1999-07-06 16:26:03 +0000 |
commit | 2e65ca2b226a55e7d25ef687ce33185c0a71bd99 (patch) | |
tree | 0b76ef817b2b4977374fe025016e80fcd2e4f3ff /sysdeps/sparc/sparc64/submul_1.S | |
parent | 4708015f24a69bd0a436483c4d1244d1fb1f2e87 (diff) | |
download | glibc-2e65ca2b226a55e7d25ef687ce33185c0a71bd99.tar.gz glibc-2e65ca2b226a55e7d25ef687ce33185c0a71bd99.tar.xz glibc-2e65ca2b226a55e7d25ef687ce33185c0a71bd99.zip |
Update.
1999-07-06 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/alpha/ioperm.c: Update for some more motherboards. Patch by Jay Estabrook. * sysdeps/unix/sysv/linux/configure.in: Don't test for libc4 in ldd for SPARC. * /sysdeps/unix/sysv/linux/sparc/ldd-rewrite.sed: New file. Patch by Cristian Gafton. 1999-07-02 Cristian Gafton <gafton@redhat.com> * sysdeps/unix/sysv/linux/bits/socket.h (__cmsg_nxthdr): "return 0" instead of "return NULL" to make C++ happy. 1999-07-04 Mark Kettenis <kettenis@gnu.org> * libio/iofdopen.c (_IO_new_fdopen): Set EINVAL if MODE is not allowed by the file access mode of the open file. 1999-07-06 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/setfpucw.c: Include math.h to get all needed macros defined. 1999-07-03 Jakub Jelinek <jj@ultra.linux.cz> * sysdeps/sparc/sparc64/submul_1.S: Fix carry handling. Optimize. * sysdeps/sparc/sparc64/lshift.S: Make a leaf subroutine. Optimize. * sysdeps/sparc/sparc64/rshift.S: Likewise. * sysdeps/sparc/sparc64/mul_1.S: Optimize. 1999-07-04 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> * malloc/malloc.c (request2size): Check for overflow and return NULL whenever it is encountered. 1999-07-04 Zack Weinberg <zack@rabi.columbia.edu> * sysdeps/posix/tempname.c (__gen_tempname): Add ability to create directories. Replace OPENIT and LARGEFILE args with a single flags parameter. * sysdeps/generic/tempname.c: Likewise. * include/stdio.h: Adjust prototype of __gen_tempname to match. Define symbolic constants for second argument. * misc/mkdtemp.c: New file, provides new function mkdtemp(). * stdlib/stdlib.h: Prototype it. * misc/Versions: Export it. * misc/Makefile (routines): Add mktemp. * manual/filesys.texi: Document it. * misc/mktemp.c: Adjust call of __gen_tempname to match new convention. * misc/mkstemp.c: Likewise. * stdio-common/tempnam.c: Likewise. * stdio-common/tmpfile.c: Likewise. * stdio-common/tmpfile64.c: Likewise. * stdio-common/tmpnam.c: Likewise. * stdio-common/tmpnam_r.c: Likewise. 1999-07-05 Jakub Jelinek <jj@ultra.linux.cz> * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Support R_SPARC_OLO10 relocations. * elf/elf.h (R_SPARC_OLO10): Fix comment.
Diffstat (limited to 'sysdeps/sparc/sparc64/submul_1.S')
-rw-r--r-- | sysdeps/sparc/sparc64/submul_1.S | 38 |
1 files changed, 17 insertions, 21 deletions
diff --git a/sysdeps/sparc/sparc64/submul_1.S b/sysdeps/sparc/sparc64/submul_1.S index ce9a80464f..8f86916133 100644 --- a/sysdeps/sparc/sparc64/submul_1.S +++ b/sysdeps/sparc/sparc64/submul_1.S @@ -30,29 +30,26 @@ s2_limb o3 */ ENTRY(__mpn_submul_1) - !#PROLOGUE# 0 save %sp,-192,%sp - !#PROLOGUE# 1 sub %g0,%i2,%o7 - sllx %o7,3,%g5 - sub %i1,%g5,%o3 - sub %i0,%g5,%o4 mov 0,%o0 ! zero cy_limb - + sllx %o7,3,%o7 + sethi %hi(0x80000000),%o2 srl %i3,0,%o1 ! extract low 32 bits of s2_limb + sub %i1,%o7,%o3 srlx %i3,32,%i3 ! extract high 32 bits of s2_limb - mov 1,%o2 - sllx %o2,32,%o2 ! o2 = 0x100000000 + sub %i0,%o7,%o4 + add %o2,%o2,%o2 ! o2 = 0x100000000 ! hi ! ! mid-1 ! ! mid-2 ! ! lo ! -.Loop: - sllx %o7,3,%g1 - ldx [%o3+%g1],%g5 +1: + ldx [%o3+%o7],%g5 srl %g5,0,%i0 ! zero hi bits + ldx [%o4+%o7],%l1 srlx %g5,32,%g5 mulx %o1,%i0,%i4 ! lo product mulx %i3,%i0,%i1 ! mid-1 product @@ -63,25 +60,24 @@ ENTRY(__mpn_submul_1) addcc %i1,%l2,%i1 ! add mid products mov 0,%l0 ! we need the carry from that add... movcs %xcc,%o2,%l0 ! ...compute it and... + sllx %i1,32,%i0 ! align low bits of mid product add %i5,%l0,%i5 ! ...add to bit 32 of the hi product - sllx %i1,32,%i0 ! align low bits of mid product srl %i4,0,%g5 ! zero high 32 bits of lo product add %i0,%g5,%i0 ! combine into low 64 bits of result srlx %i1,32,%i1 ! extract high bits of mid product... + addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result add %i5,%i1,%i1 ! ...and add them to the high result - addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result mov 0,%g5 movcs %xcc,1,%g5 - add %o7,1,%o7 - ldx [%o4+%g1],%l1 subcc %l1,%i0,%i0 - movcs %xcc,1,%g5 - stx %i0,[%o4+%g1] - brnz %o7,.Loop + stx %i0,[%o4+%o7] + add %g5,1,%l1 + movcs %xcc,%l1,%g5 + addcc %o7,8,%o7 + bne,pt %xcc,1b add %i1,%g5,%o0 ! compute new cy_limb - mov %o0,%i0 - jmpl %i7+8,%g0 - restore + jmpl %i7+8, %g0 + restore %o0,%g0,%o0 END(__mpn_submul_1) |