mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 05:20:06 +00:00
101 lines
2.4 KiB
ArmAsm
101 lines
2.4 KiB
ArmAsm
/* Pentium __mpn_mul_1 -- Multiply a limb vector with a limb and store
|
|
the result in a second limb vector.
|
|
Copyright (C) 1992-2013 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"
|
|
#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 %res_ptr
|
|
cfi_adjust_cfa_offset (4)
|
|
pushl %s1_ptr
|
|
cfi_adjust_cfa_offset (4)
|
|
pushl %ebp
|
|
cfi_adjust_cfa_offset (4)
|
|
pushl %s2_limb
|
|
cfi_adjust_cfa_offset (4)
|
|
|
|
movl RES(%esp), %res_ptr
|
|
cfi_rel_offset (res_ptr, 12)
|
|
movl S1(%esp), %s1_ptr
|
|
cfi_rel_offset (s1_ptr, 8)
|
|
movl SIZE(%esp), %size
|
|
movl S2LIMB(%esp), %s2_limb
|
|
cfi_rel_offset (s2_limb, 0)
|
|
#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
|
|
cfi_rel_offset (ebp, 4)
|
|
ALIGN (3)
|
|
|
|
L(oop): adcl $0, %ebp
|
|
movl (%s1_ptr,%size,4), %eax
|
|
|
|
mull %s2_limb
|
|
|
|
addl %eax, %ebp
|
|
|
|
movl %ebp, (%res_ptr,%size,4)
|
|
incl %size
|
|
|
|
movl %edx, %ebp
|
|
jnz L(oop)
|
|
|
|
adcl $0, %ebp
|
|
movl %ebp, %eax
|
|
popl %s2_limb
|
|
cfi_adjust_cfa_offset (-4)
|
|
cfi_restore (s2_limb)
|
|
popl %ebp
|
|
cfi_adjust_cfa_offset (-4)
|
|
cfi_restore (ebp)
|
|
popl %s1_ptr
|
|
cfi_adjust_cfa_offset (-4)
|
|
cfi_restore (s1_ptr)
|
|
popl %res_ptr
|
|
cfi_adjust_cfa_offset (-4)
|
|
cfi_restore (res_ptr)
|
|
|
|
LEAVE
|
|
ret
|
|
#undef size
|
|
END (BP_SYM (__mpn_mul_1))
|