mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-23 03:10:05 +00:00
8f5ca04bc7
* malloc/malloc.c (_malloc_internal): Performance fix. Move
if statement out of loop.
* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster
implementation using GMP functions. Contributed by
Torbjorn Granlund and Ulrich Drepper.
* stdio/test_rdwr.c: Include <errno.h>.
* sysdeps/i386/i586/Implies: New file.
New highly optimized string functions for i[345]86.
* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
* sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
* sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
* sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
* sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
* sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
* sysdeps/i386/i586/strlen.S: New file.
* sysdeps/i386/memchr.c: Removed. There is now an assembler version.
* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
not correspond to used values.
* sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper
around a kernel header file.
* sysdeps/unix/sysv/linux/Dist: Add it.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
Likewise.
* sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of
defining ourself we use a kernel header file.
* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
call handler for i586.
* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* malloc/malloc.c (_malloc_internal): Performance fix. Move
if statement out of loop.
* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster
implementation using GMP functions. Contributed by
Torbjorn Granlund and Ulrich Drepper.
* stdio/test_rdwr.c: Include <errno.h>.
* sysdeps/i386/i586/Implies: New file.
New highly optimized string functions for i[345]86.
* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
* sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
* sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
* sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
* sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
* sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
* sysdeps/i386/i586/strlen.S: New file.
* sysdeps/i386/memchr.c: Removed. There is now an assembler version.
* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
not correspond to used values.
* sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper
around a kernel header file.
* sysdeps/unix/sysv/linux/Dist: Add it.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
Likewise.
* sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of
defining ourself we use a kernel header file.
* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
call handler for i586.
* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
120 lines
2.3 KiB
ArmAsm
120 lines
2.3 KiB
ArmAsm
# MIPS2 __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
|
|
# store difference in a third limb vector.
|
|
|
|
# Copyright (C) 1995 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
|
|
# INPUT PARAMETERS
|
|
# res_ptr $4
|
|
# s1_ptr $5
|
|
# s2_ptr $6
|
|
# size $7
|
|
|
|
.text
|
|
.align 2
|
|
.globl __mpn_sub_n
|
|
.ent __mpn_sub_n
|
|
__mpn_sub_n:
|
|
.set noreorder
|
|
.set nomacro
|
|
|
|
lw $10,0($5)
|
|
lw $11,0($6)
|
|
|
|
addiu $7,$7,-1
|
|
and $9,$7,4-1 # number of limbs in first loop
|
|
beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
|
|
move $2,$0
|
|
|
|
subu $7,$7,$9
|
|
|
|
.Loop0: addiu $9,$9,-1
|
|
lw $12,4($5)
|
|
addu $11,$11,$2
|
|
lw $13,4($6)
|
|
sltu $8,$11,$2
|
|
subu $11,$10,$11
|
|
sltu $2,$10,$11
|
|
sw $11,0($4)
|
|
or $2,$2,$8
|
|
|
|
addiu $5,$5,4
|
|
addiu $6,$6,4
|
|
move $10,$12
|
|
move $11,$13
|
|
bne $9,$0,.Loop0
|
|
addiu $4,$4,4
|
|
|
|
.L0: beq $7,$0,.Lend
|
|
nop
|
|
|
|
.Loop: addiu $7,$7,-4
|
|
|
|
lw $12,4($5)
|
|
addu $11,$11,$2
|
|
lw $13,4($6)
|
|
sltu $8,$11,$2
|
|
subu $11,$10,$11
|
|
sltu $2,$10,$11
|
|
sw $11,0($4)
|
|
or $2,$2,$8
|
|
|
|
lw $10,8($5)
|
|
addu $13,$13,$2
|
|
lw $11,8($6)
|
|
sltu $8,$13,$2
|
|
subu $13,$12,$13
|
|
sltu $2,$12,$13
|
|
sw $13,4($4)
|
|
or $2,$2,$8
|
|
|
|
lw $12,12($5)
|
|
addu $11,$11,$2
|
|
lw $13,12($6)
|
|
sltu $8,$11,$2
|
|
subu $11,$10,$11
|
|
sltu $2,$10,$11
|
|
sw $11,8($4)
|
|
or $2,$2,$8
|
|
|
|
lw $10,16($5)
|
|
addu $13,$13,$2
|
|
lw $11,16($6)
|
|
sltu $8,$13,$2
|
|
subu $13,$12,$13
|
|
sltu $2,$12,$13
|
|
sw $13,12($4)
|
|
or $2,$2,$8
|
|
|
|
addiu $5,$5,16
|
|
addiu $6,$6,16
|
|
|
|
bne $7,$0,.Loop
|
|
addiu $4,$4,16
|
|
|
|
.Lend: addu $11,$11,$2
|
|
sltu $8,$11,$2
|
|
subu $11,$10,$11
|
|
sltu $2,$10,$11
|
|
sw $11,0($4)
|
|
j $31
|
|
or $2,$2,$8
|
|
|
|
.end __mpn_sub_n
|