156 lines
3.4 KiB
ArmAsm
156 lines
3.4 KiB
ArmAsm
/* Pentium __mpn_add_n -- Add two limb vectors of the same length > 0 and store
|
|
sum in a third limb vector.
|
|
Copyright (C) 1992,94,95,96,97,98,2000,2005 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, write to
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
|
MA 02111-1307, USA. */
|
|
|
|
#include "sysdep.h"
|
|
#include "asm-syntax.h"
|
|
#include "bp-sym.h"
|
|
#include "bp-asm.h"
|
|
|
|
#define PARMS LINKAGE+16 /* space for 4 saved regs */
|
|
#define RES PARMS
|
|
#define S1 RES+PTR_SIZE
|
|
#define S2 S1+PTR_SIZE
|
|
#define SIZE S2+PTR_SIZE
|
|
|
|
.text
|
|
ENTRY (BP_SYM (__mpn_add_n))
|
|
ENTER
|
|
|
|
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)
|
|
|
|
movl RES(%esp),%edi
|
|
cfi_rel_offset (edi, 12)
|
|
movl S1(%esp),%esi
|
|
cfi_rel_offset (esi, 8)
|
|
movl S2(%esp),%ebx
|
|
cfi_rel_offset (ebx, 0)
|
|
movl SIZE(%esp),%ecx
|
|
#if __BOUNDED_POINTERS__
|
|
shll $2, %ecx /* convert limbs to bytes */
|
|
CHECK_BOUNDS_BOTH_WIDE (%edi, RES(%esp), %ecx)
|
|
CHECK_BOUNDS_BOTH_WIDE (%esi, S1(%esp), %ecx)
|
|
CHECK_BOUNDS_BOTH_WIDE (%ebx, S2(%esp), %ecx)
|
|
shrl $2, %ecx
|
|
#endif
|
|
movl (%ebx),%ebp
|
|
cfi_rel_offset (ebp, 4)
|
|
|
|
decl %ecx
|
|
movl %ecx,%edx
|
|
shrl $3,%ecx
|
|
andl $7,%edx
|
|
testl %ecx,%ecx /* zero carry flag */
|
|
jz L(end)
|
|
pushl %edx
|
|
cfi_adjust_cfa_offset (4)
|
|
|
|
ALIGN (3)
|
|
L(oop): movl 28(%edi),%eax /* fetch destination cache line */
|
|
leal 32(%edi),%edi
|
|
|
|
L(1): movl (%esi),%eax
|
|
movl 4(%esi),%edx
|
|
adcl %ebp,%eax
|
|
movl 4(%ebx),%ebp
|
|
adcl %ebp,%edx
|
|
movl 8(%ebx),%ebp
|
|
movl %eax,-32(%edi)
|
|
movl %edx,-28(%edi)
|
|
|
|
L(2): movl 8(%esi),%eax
|
|
movl 12(%esi),%edx
|
|
adcl %ebp,%eax
|
|
movl 12(%ebx),%ebp
|
|
adcl %ebp,%edx
|
|
movl 16(%ebx),%ebp
|
|
movl %eax,-24(%edi)
|
|
movl %edx,-20(%edi)
|
|
|
|
L(3): movl 16(%esi),%eax
|
|
movl 20(%esi),%edx
|
|
adcl %ebp,%eax
|
|
movl 20(%ebx),%ebp
|
|
adcl %ebp,%edx
|
|
movl 24(%ebx),%ebp
|
|
movl %eax,-16(%edi)
|
|
movl %edx,-12(%edi)
|
|
|
|
L(4): movl 24(%esi),%eax
|
|
movl 28(%esi),%edx
|
|
adcl %ebp,%eax
|
|
movl 28(%ebx),%ebp
|
|
adcl %ebp,%edx
|
|
movl 32(%ebx),%ebp
|
|
movl %eax,-8(%edi)
|
|
movl %edx,-4(%edi)
|
|
|
|
leal 32(%esi),%esi
|
|
leal 32(%ebx),%ebx
|
|
decl %ecx
|
|
jnz L(oop)
|
|
|
|
popl %edx
|
|
cfi_adjust_cfa_offset (-4)
|
|
L(end):
|
|
decl %edx /* test %edx w/o clobbering carry */
|
|
js L(end2)
|
|
incl %edx
|
|
L(oop2):
|
|
leal 4(%edi),%edi
|
|
movl (%esi),%eax
|
|
adcl %ebp,%eax
|
|
movl 4(%ebx),%ebp
|
|
movl %eax,-4(%edi)
|
|
leal 4(%esi),%esi
|
|
leal 4(%ebx),%ebx
|
|
decl %edx
|
|
jnz L(oop2)
|
|
L(end2):
|
|
movl (%esi),%eax
|
|
adcl %ebp,%eax
|
|
movl %eax,(%edi)
|
|
|
|
sbbl %eax,%eax
|
|
negl %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)
|
|
|
|
LEAVE
|
|
ret
|
|
END (BP_SYM (__mpn_add_n))
|