mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-03 04:01:43 +08:00
87 lines
2.1 KiB
ArmAsm
87 lines
2.1 KiB
ArmAsm
/* i80386 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
|
|
the result from a second limb vector.
|
|
Copyright (C) 1992-2016 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 Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 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 Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the GNU MP Library; see the file COPYING.LIB. If not,
|
|
see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "sysdep.h"
|
|
#include "asm-syntax.h"
|
|
|
|
#define PARMS 4+16 /* space for 4 saved regs */
|
|
#define RES PARMS
|
|
#define S1 RES+4
|
|
#define SIZE S1+4
|
|
#define S2LIMB SIZE+4
|
|
|
|
#define res_ptr edi
|
|
#define s1_ptr esi
|
|
#define sizeP ecx
|
|
#define s2_limb ebx
|
|
|
|
.text
|
|
ENTRY (__mpn_submul_1)
|
|
|
|
pushl %edi
|
|
cfi_adjust_cfa_offset (4)
|
|
pushl %esi
|
|
cfi_adjust_cfa_offset (4)
|
|
pushl %ebp
|
|
cfi_adjust_cfa_offset (4)
|
|
pushl %ebx
|
|
cfi_adjust_cfa_offset (4)
|
|
cfi_rel_offset (edi, 12)
|
|
cfi_rel_offset (esi, 8)
|
|
cfi_rel_offset (ebp, 4)
|
|
cfi_rel_offset (ebx, 0)
|
|
|
|
movl RES(%esp), %res_ptr
|
|
movl S1(%esp), %s1_ptr
|
|
movl SIZE(%esp), %sizeP
|
|
movl S2LIMB(%esp), %s2_limb
|
|
leal (%res_ptr,%sizeP,4), %res_ptr
|
|
leal (%s1_ptr,%sizeP,4), %s1_ptr
|
|
negl %sizeP
|
|
xorl %ebp, %ebp
|
|
ALIGN (3)
|
|
L(oop):
|
|
movl (%s1_ptr,%sizeP,4), %eax
|
|
mull %s2_limb
|
|
addl %ebp, %eax
|
|
adcl $0, %edx
|
|
subl %eax, (%res_ptr,%sizeP,4)
|
|
adcl $0, %edx
|
|
movl %edx, %ebp
|
|
|
|
incl %sizeP
|
|
jnz L(oop)
|
|
movl %ebp, %eax
|
|
|
|
popl %ebx
|
|
cfi_adjust_cfa_offset (-4)
|
|
cfi_restore (ebx)
|
|
popl %ebp
|
|
cfi_adjust_cfa_offset (-4)
|
|
cfi_restore (ebp)
|
|
popl %esi
|
|
cfi_adjust_cfa_offset (-4)
|
|
cfi_restore (esi)
|
|
popl %edi
|
|
cfi_adjust_cfa_offset (-4)
|
|
cfi_restore (edi)
|
|
|
|
ret
|
|
END (__mpn_submul_1)
|