mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-16 18:10:11 +00:00
f2897624e2
* sysdeps/i386/mul_1.S: Likewise. * sysdeps/i386/submul_1.S: Likewise. * sysdeps/i386/i586/addmul_1.S: Likewise. * sysdeps/i386/i586/mul_1.S: Add bounds checks. * sysdeps/i386/i586/submul_1.S: Likewise.
82 lines
2.0 KiB
ArmAsm
82 lines
2.0 KiB
ArmAsm
/* i80386 __mpn_mul_1 -- Multiply a limb vector with a limb and store
|
|
the result in a second limb vector.
|
|
Copyright (C) 1992, 1994, 1997, 1998, 2000 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. */
|
|
|
|
#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 SIZE S1+PTR_SIZE
|
|
#define S2LIMB SIZE+4
|
|
|
|
#define res_ptr edi
|
|
#define s1_ptr esi
|
|
#define size ecx
|
|
#define s2_limb ebx
|
|
|
|
.text
|
|
ENTRY (BP_SYM (__mpn_mul_1))
|
|
ENTER
|
|
|
|
pushl %edi
|
|
pushl %esi
|
|
pushl %ebp
|
|
pushl %ebx
|
|
|
|
movl RES(%esp), %res_ptr
|
|
movl S1(%esp), %s1_ptr
|
|
movl SIZE(%esp), %size
|
|
movl S2LIMB(%esp), %s2_limb
|
|
#if __BOUNDED_POINTERS__
|
|
shll $2, %size /* convert limbs to bytes */
|
|
CHECK_BOUNDS_BOTH_WIDE (%res_ptr, RES(%esp), %size)
|
|
CHECK_BOUNDS_BOTH_WIDE (%s1_ptr, S1(%esp), %size)
|
|
shrl $2, %size
|
|
#endif
|
|
leal (%res_ptr,%size,4), %res_ptr
|
|
leal (%s1_ptr,%size,4), %s1_ptr
|
|
negl %size
|
|
xorl %ebp, %ebp
|
|
ALIGN (3)
|
|
L(oop):
|
|
movl (%s1_ptr,%size,4), %eax
|
|
mull %s2_limb
|
|
addl %ebp, %eax
|
|
movl %eax, (%res_ptr,%size,4)
|
|
adcl $0, %edx
|
|
movl %edx, %ebp
|
|
|
|
incl %size
|
|
jnz L(oop)
|
|
movl %ebp, %eax
|
|
|
|
popl %ebx
|
|
popl %ebp
|
|
popl %esi
|
|
popl %edi
|
|
|
|
LEAVE
|
|
ret
|
|
#undef size
|
|
END (BP_SYM (__mpn_mul_1))
|