mirror of
git://git.gnupg.org/gnupg.git
synced 2024-11-10 21:38:50 +01:00
98 lines
2.1 KiB
ArmAsm
98 lines
2.1 KiB
ArmAsm
/* mips3 lshift
|
|
*
|
|
* Copyright (C) 1995, 1998, 2000,
|
|
* 2001 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of GnuPG.
|
|
*
|
|
* GnuPG is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GnuPG 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*/
|
|
|
|
/*******************
|
|
* mpi_limb_t
|
|
* mpihelp_lshift( mpi_ptr_t wp, ($4)
|
|
* mpi_ptr_t up, ($5)
|
|
* mpi_size_t usize, ($6)
|
|
* unsigned cnt) ($7)
|
|
*/
|
|
|
|
.text
|
|
.align 2
|
|
.globl mpihelp_lshift
|
|
.ent mpihelp_lshift
|
|
mpihelp_lshift:
|
|
.set noreorder
|
|
.set nomacro
|
|
|
|
dsll $2,$6,3
|
|
daddu $5,$5,$2 # make r5 point at end of src
|
|
ld $10,-8($5) # load first limb
|
|
dsubu $13,$0,$7
|
|
daddu $4,$4,$2 # make r4 point at end of res
|
|
daddiu $6,$6,-1
|
|
and $9,$6,4-1 # number of limbs in first loop
|
|
beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
|
|
dsrl $2,$10,$13 # compute function result
|
|
|
|
dsubu $6,$6,$9
|
|
|
|
.Loop0: ld $3,-16($5)
|
|
daddiu $4,$4,-8
|
|
daddiu $5,$5,-8
|
|
daddiu $9,$9,-1
|
|
dsll $11,$10,$7
|
|
dsrl $12,$3,$13
|
|
move $10,$3
|
|
or $8,$11,$12
|
|
bne $9,$0,.Loop0
|
|
sd $8,0($4)
|
|
|
|
.L0: beq $6,$0,.Lend
|
|
nop
|
|
|
|
.Loop: ld $3,-16($5)
|
|
daddiu $4,$4,-32
|
|
daddiu $6,$6,-4
|
|
dsll $11,$10,$7
|
|
dsrl $12,$3,$13
|
|
|
|
ld $10,-24($5)
|
|
dsll $14,$3,$7
|
|
or $8,$11,$12
|
|
sd $8,24($4)
|
|
dsrl $9,$10,$13
|
|
|
|
ld $3,-32($5)
|
|
dsll $11,$10,$7
|
|
or $8,$14,$9
|
|
sd $8,16($4)
|
|
dsrl $12,$3,$13
|
|
|
|
ld $10,-40($5)
|
|
dsll $14,$3,$7
|
|
or $8,$11,$12
|
|
sd $8,8($4)
|
|
dsrl $9,$10,$13
|
|
|
|
daddiu $5,$5,-32
|
|
or $8,$14,$9
|
|
bgtz $6,.Loop
|
|
sd $8,0($4)
|
|
|
|
.Lend: dsll $8,$10,$7
|
|
j $31
|
|
sd $8,-8($4)
|
|
.end mpihelp_lshift
|