File: [local] / OpenXM / src / kan96xx / gmp-2.0.2-ssh-2 / mpn / x86 / Attic / submul_1.S (download)
Revision 1.1.1.1 (vendor branch), Mon Oct 25 08:53:38 1999 UTC (24 years, 11 months ago) by takayama
Branch: TAKAYAMA
CVS Tags: RELEASE_20000124, RELEASE_1_1_2, GMP_2_0_2_SSH_2 Changes since 1.1: +0 -0
lines
gmp-2.0.2-ssh-2 is added.
It is a patched version of gmp-2.0.2 to compile on FreeBSD 3.3.
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/* i80386 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
the result from a second limb vector.
Copyright (C) 1992, 1994 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. */
/*
INPUT PARAMETERS
res_ptr (sp + 4)
s1_ptr (sp + 8)
size (sp + 12)
s2_limb (sp + 16)
*/
#include "sysdep.h"
#include "asm-syntax.h"
#define res_ptr edi
#define s1_ptr esi
#define size ecx
#define s2_limb ebp
TEXT
ALIGN (3)
GLOBL C_SYMBOL_NAME(__mpn_submul_1)
C_SYMBOL_NAME(__mpn_submul_1:)
INSN1(push,l ,R(edi))
INSN1(push,l ,R(esi))
INSN1(push,l ,R(ebx))
INSN1(push,l ,R(ebp))
INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,20))
INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,24))
INSN2(mov,l ,R(size),MEM_DISP(esp,28))
INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,size,4))
INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,size,4))
INSN1(neg,l ,R(size))
INSN2(xor,l ,R(ebx),R(ebx))
ALIGN (3)
Loop:
INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
INSN1(mul,l ,R(s2_limb))
INSN2(add,l ,R(eax),R(ebx))
INSN2(adc,l ,R(edx),$0)
INSN2(sub,l ,MEM_INDEX(res_ptr,size,4),R(eax))
INSN2(adc,l ,R(edx),$0)
INSN2(mov,l ,R(ebx),R(edx))
INSN1(inc,l ,R(size))
INSN1(jnz, ,Loop)
INSN2(mov,l ,R(eax),R(ebx))
INSN1(pop,l ,R(ebp))
INSN1(pop,l ,R(ebx))
INSN1(pop,l ,R(esi))
INSN1(pop,l ,R(edi))
ret