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.
83 lines
2.1 KiB
ArmAsm
83 lines
2.1 KiB
ArmAsm
/* Pentium __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
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the result from a second limb vector.
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Copyright (C) 1992, 1994 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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/*
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INPUT PARAMETERS
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res_ptr (sp + 4)
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s1_ptr (sp + 8)
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size (sp + 12)
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s2_limb (sp + 16)
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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#define res_ptr edi
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#define s1_ptr esi
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#define size ecx
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#define s2_limb ebp
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TEXT
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ALIGN (3)
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GLOBL C_SYMBOL_NAME(__mpn_submul_1)
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C_SYMBOL_NAME(__mpn_submul_1:)
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INSN1(push,l ,R(edi))
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INSN1(push,l ,R(esi))
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INSN1(push,l ,R(ebx))
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INSN1(push,l ,R(ebp))
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INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,20))
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INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,24))
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INSN2(mov,l ,R(size),MEM_DISP(esp,28))
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INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
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INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,size,4))
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INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,size,4))
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INSN1(neg,l ,R(size))
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INSN2(xor,l ,R(edx),R(edx))
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ALIGN (3)
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Loop:
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INSN2(mov,l ,R(ebx),R(edx))
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INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
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INSN1(mul,l ,R(s2_limb))
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INSN2(add,l ,R(eax),R(ebx))
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INSN2(mov,l ,R(ebx),MEM_INDEX(res_ptr,size,4))
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INSN2(adc,l ,R(edx),$0)
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INSN2(sub,l ,R(ebx),R(eax))
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INSN2(adc,l ,R(edx),$0)
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INSN2(mov,l ,MEM_INDEX(res_ptr,size,4),R(ebx))
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INSN1(inc,l ,R(size))
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INSN1(jnz, ,Loop)
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INSN2(mov,l ,R(eax),R(edx))
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INSN1(pop,l ,R(ebp))
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INSN1(pop,l ,R(ebx))
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INSN1(pop,l ,R(esi))
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INSN1(pop,l ,R(edi))
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ret
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