mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 02:40:08 +00:00
2e65ca2b22
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.
84 lines
2.5 KiB
ArmAsm
84 lines
2.5 KiB
ArmAsm
/* SPARC v9 __mpn_submul_1 -- Multiply a limb vector with a single limb and
|
|
subtract the product from a second limb vector.
|
|
|
|
Copyright (C) 1996 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU MP Library.
|
|
|
|
The GNU MP 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 MP 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 MP 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>
|
|
|
|
|
|
/* INPUT PARAMETERS
|
|
res_ptr o0
|
|
s1_ptr o1
|
|
size o2
|
|
s2_limb o3 */
|
|
|
|
ENTRY(__mpn_submul_1)
|
|
save %sp,-192,%sp
|
|
|
|
sub %g0,%i2,%o7
|
|
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
|
|
sub %i0,%o7,%o4
|
|
add %o2,%o2,%o2 ! o2 = 0x100000000
|
|
|
|
! hi !
|
|
! mid-1 !
|
|
! mid-2 !
|
|
! lo !
|
|
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
|
|
mulx %o1,%g5,%l2 ! mid-2 product
|
|
mulx %i3,%g5,%i5 ! hi product
|
|
srlx %i4,32,%i0 ! extract high 32 bits of lo product...
|
|
add %i1,%i0,%i1 ! ...and add it to the mid-1 product
|
|
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
|
|
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
|
|
mov 0,%g5
|
|
movcs %xcc,1,%g5
|
|
subcc %l1,%i0,%i0
|
|
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
|
|
|
|
jmpl %i7+8, %g0
|
|
restore %o0,%g0,%o0
|
|
|
|
END(__mpn_submul_1)
|