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
# Alpha __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
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# store difference in a third limb vector.
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# Copyright (C) 1995 Free Software Foundation, Inc.
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# This file is part of the GNU MP Library.
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# The GNU MP Library is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Library General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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# The GNU MP Library is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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# License for more details.
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# You should have received a copy of the GNU Library General Public License
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# along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# INPUT PARAMETERS
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# res_ptr $16
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# s1_ptr $17
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# s2_ptr $18
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# size $19
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.set noreorder
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.set noat
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.text
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.align 3
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.globl __mpn_sub_n
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.ent __mpn_sub_n
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__mpn_sub_n:
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.frame $30,0,$26,0
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ldq $3,0($17)
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ldq $4,0($18)
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subq $19,1,$19
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and $19,4-1,$2 # number of limbs in first loop
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bis $31,$31,$0
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beq $2,.L0 # if multiple of 4 limbs, skip first loop
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subq $19,$2,$19
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.Loop0: subq $2,1,$2
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ldq $5,8($17)
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addq $4,$0,$4
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ldq $6,8($18)
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cmpult $4,$0,$1
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subq $3,$4,$4
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cmpult $3,$4,$0
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stq $4,0($16)
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or $0,$1,$0
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addq $17,8,$17
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addq $18,8,$18
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bis $5,$5,$3
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bis $6,$6,$4
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addq $16,8,$16
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bne $2,.Loop0
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.L0: beq $19,.Lend
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.align 3
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.Loop: subq $19,4,$19
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ldq $5,8($17)
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addq $4,$0,$4
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ldq $6,8($18)
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cmpult $4,$0,$1
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subq $3,$4,$4
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cmpult $3,$4,$0
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stq $4,0($16)
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or $0,$1,$0
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ldq $3,16($17)
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addq $6,$0,$6
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ldq $4,16($18)
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cmpult $6,$0,$1
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subq $5,$6,$6
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cmpult $5,$6,$0
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stq $6,8($16)
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or $0,$1,$0
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ldq $5,24($17)
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addq $4,$0,$4
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ldq $6,24($18)
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cmpult $4,$0,$1
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subq $3,$4,$4
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cmpult $3,$4,$0
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stq $4,16($16)
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or $0,$1,$0
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ldq $3,32($17)
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addq $6,$0,$6
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ldq $4,32($18)
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cmpult $6,$0,$1
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subq $5,$6,$6
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cmpult $5,$6,$0
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stq $6,24($16)
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or $0,$1,$0
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addq $17,32,$17
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addq $18,32,$18
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addq $16,32,$16
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bne $19,.Loop
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.Lend: addq $4,$0,$4
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cmpult $4,$0,$1
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subq $3,$4,$4
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cmpult $3,$4,$0
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stq $4,0($16)
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or $0,$1,$0
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ret $31,($26),1
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.end __mpn_sub_n
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