mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 16:50:07 +00:00
122 lines
2.3 KiB
ArmAsm
122 lines
2.3 KiB
ArmAsm
|
/* MIPS2 __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
|
||
|
|
store difference in a third limb vector.
|
||
|
|
|
||
|
|
Copyright (C) 1995 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>
|
||
|
|
|
||
|
|
/* INPUT PARAMETERS
|
||
|
|
res_ptr $4
|
||
|
|
s1_ptr $5
|
||
|
|
s2_ptr $6
|
||
|
|
size $7
|
||
|
|
*/
|
||
|
|
#ifdef PIC
|
||
|
|
.option pic2
|
||
|
|
#endif
|
||
|
|
ENTRY (__mpn_sub_n)
|
||
|
|
.set noreorder
|
||
|
|
#ifdef PIC
|
||
|
|
.cpload t9
|
||
|
|
#endif
|
||
|
|
.set nomacro
|
||
|
|
|
||
|
|
lw $10,0($5)
|
||
|
|
lw $11,0($6)
|
||
|
|
|
||
|
|
addiu $7,$7,-1
|
||
|
|
and $9,$7,4-1 /* number of limbs in first loop */
|
||
|
|
beq $9,$0,.L0 /* if multiple of 4 limbs, skip first loop */
|
||
|
|
move $2,$0
|
||
|
|
|
||
|
|
subu $7,$7,$9
|
||
|
|
|
||
|
|
.Loop0: addiu $9,$9,-1
|
||
|
|
lw $12,4($5)
|
||
|
|
addu $11,$11,$2
|
||
|
|
lw $13,4($6)
|
||
|
|
sltu $8,$11,$2
|
||
|
|
subu $11,$10,$11
|
||
|
|
sltu $2,$10,$11
|
||
|
|
sw $11,0($4)
|
||
|
|
or $2,$2,$8
|
||
|
|
|
||
|
|
addiu $5,$5,4
|
||
|
|
addiu $6,$6,4
|
||
|
|
move $10,$12
|
||
|
|
move $11,$13
|
||
|
|
bne $9,$0,.Loop0
|
||
|
|
addiu $4,$4,4
|
||
|
|
|
||
|
|
.L0: beq $7,$0,.Lend
|
||
|
|
nop
|
||
|
|
|
||
|
|
.Loop: addiu $7,$7,-4
|
||
|
|
|
||
|
|
lw $12,4($5)
|
||
|
|
addu $11,$11,$2
|
||
|
|
lw $13,4($6)
|
||
|
|
sltu $8,$11,$2
|
||
|
|
subu $11,$10,$11
|
||
|
|
sltu $2,$10,$11
|
||
|
|
sw $11,0($4)
|
||
|
|
or $2,$2,$8
|
||
|
|
|
||
|
|
lw $10,8($5)
|
||
|
|
addu $13,$13,$2
|
||
|
|
lw $11,8($6)
|
||
|
|
sltu $8,$13,$2
|
||
|
|
subu $13,$12,$13
|
||
|
|
sltu $2,$12,$13
|
||
|
|
sw $13,4($4)
|
||
|
|
or $2,$2,$8
|
||
|
|
|
||
|
|
lw $12,12($5)
|
||
|
|
addu $11,$11,$2
|
||
|
|
lw $13,12($6)
|
||
|
|
sltu $8,$11,$2
|
||
|
|
subu $11,$10,$11
|
||
|
|
sltu $2,$10,$11
|
||
|
|
sw $11,8($4)
|
||
|
|
or $2,$2,$8
|
||
|
|
|
||
|
|
lw $10,16($5)
|
||
|
|
addu $13,$13,$2
|
||
|
|
lw $11,16($6)
|
||
|
|
sltu $8,$13,$2
|
||
|
|
subu $13,$12,$13
|
||
|
|
sltu $2,$12,$13
|
||
|
|
sw $13,12($4)
|
||
|
|
or $2,$2,$8
|
||
|
|
|
||
|
|
addiu $5,$5,16
|
||
|
|
addiu $6,$6,16
|
||
|
|
|
||
|
|
bne $7,$0,.Loop
|
||
|
|
addiu $4,$4,16
|
||
|
|
|
||
|
|
.Lend: addu $11,$11,$2
|
||
|
|
sltu $8,$11,$2
|
||
|
|
subu $11,$10,$11
|
||
|
|
sltu $2,$10,$11
|
||
|
|
sw $11,0($4)
|
||
|
|
j $31
|
||
|
|
or $2,$2,$8
|