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Update head to match stable 1.0
This commit is contained in:
David Shaw
parent
df58e024e7
commit
0ed6228293
144 changed files with 18930 additions and 673 deletions
23
mpi/mips3/README
Normal file
23
mpi/mips3/README
Normal file
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@ -0,0 +1,23 @@
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This directory contains mpn functions optimized for MIPS3. Example of
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processors that implement MIPS3 are R4000, R4400, R4600, R4700, and R8000.
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RELEVANT OPTIMIZATION ISSUES
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1. On the R4000 and R4400, branches, both the plain and the "likely" ones,
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take 3 cycles to execute. (The fastest possible loop will take 4 cycles,
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because of the delay insn.)
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On the R4600, branches takes a single cycle
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On the R8000, branches often take no noticable cycles, as they are
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executed in a separate function unit..
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2. The R4000 and R4400 have a load latency of 4 cycles.
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3. On the R4000 and R4400, multiplies take a data-dependent number of
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cycles, contrary to the SGI documentation. There seem to be 3 or 4
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possible latencies.
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STATUS
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Good...
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10
mpi/mips3/distfiles
Normal file
10
mpi/mips3/distfiles
Normal file
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@ -0,0 +1,10 @@
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README
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mpih-add1.S
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mpih-sub1.S
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mpih-mul1.S
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mpih-mul2.S
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mpih-mul3.S
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mpih-lshift.S
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mpih-rshift.S
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mpi-asm-defs.h
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10
mpi/mips3/mpi-asm-defs.h
Normal file
10
mpi/mips3/mpi-asm-defs.h
Normal file
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@ -0,0 +1,10 @@
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/* This file defines some basic constants for the MPI machinery. We
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* need to define the types on a per-CPU basis, so it is done with
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* this file here. */
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#define BYTES_PER_MPI_LIMB 8
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124
mpi/mips3/mpih-add1.S
Normal file
124
mpi/mips3/mpih-add1.S
Normal file
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@ -0,0 +1,124 @@
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/* mips3 add_n -- Add two limb vectors of the same length > 0 and store
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* sum in a third limb vector.
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*
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* Copyright (C) 1995, 1998, 2000
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* 2001 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
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||||
*
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||||
* You should have received a copy of the GNU General Public License
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||||
* along with this program; if not, write to the Free Software
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||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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/*******************
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* mpi_limb_t
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* mpihelp_add_n( mpi_ptr_t res_ptr, ($4)
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* mpi_ptr_t s1_ptr, ($5)
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* mpi_ptr_t s2_ptr, ($6)
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* mpi_size_t size) ($7)
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*/
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.text
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.align 2
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.globl mpihelp_add_n
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.ent mpihelp_add_n
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mpihelp_add_n:
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.set noreorder
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.set nomacro
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ld $10,0($5)
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ld $11,0($6)
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daddiu $7,$7,-1
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and $9,$7,4-1 # number of limbs in first loop
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beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
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move $2,$0
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dsubu $7,$7,$9
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.Loop0: daddiu $9,$9,-1
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ld $12,8($5)
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daddu $11,$11,$2
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ld $13,8($6)
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sltu $8,$11,$2
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daddu $11,$10,$11
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sltu $2,$11,$10
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sd $11,0($4)
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or $2,$2,$8
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daddiu $5,$5,8
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daddiu $6,$6,8
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move $10,$12
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move $11,$13
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bne $9,$0,.Loop0
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daddiu $4,$4,8
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.L0: beq $7,$0,.Lend
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nop
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.Loop: daddiu $7,$7,-4
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ld $12,8($5)
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daddu $11,$11,$2
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ld $13,8($6)
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sltu $8,$11,$2
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daddu $11,$10,$11
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sltu $2,$11,$10
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sd $11,0($4)
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or $2,$2,$8
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ld $10,16($5)
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daddu $13,$13,$2
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ld $11,16($6)
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sltu $8,$13,$2
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daddu $13,$12,$13
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sltu $2,$13,$12
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sd $13,8($4)
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or $2,$2,$8
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ld $12,24($5)
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daddu $11,$11,$2
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ld $13,24($6)
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sltu $8,$11,$2
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daddu $11,$10,$11
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sltu $2,$11,$10
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sd $11,16($4)
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or $2,$2,$8
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ld $10,32($5)
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daddu $13,$13,$2
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ld $11,32($6)
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sltu $8,$13,$2
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daddu $13,$12,$13
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sltu $2,$13,$12
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sd $13,24($4)
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or $2,$2,$8
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daddiu $5,$5,32
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daddiu $6,$6,32
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bne $7,$0,.Loop
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daddiu $4,$4,32
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.Lend: daddu $11,$11,$2
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sltu $8,$11,$2
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daddu $11,$10,$11
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sltu $2,$11,$10
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sd $11,0($4)
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j $31
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or $2,$2,$8
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.end mpihelp_add_n
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97
mpi/mips3/mpih-lshift.S
Normal file
97
mpi/mips3/mpih-lshift.S
Normal file
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@ -0,0 +1,97 @@
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/* mips3 lshift
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*
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* Copyright (C) 1995, 1998, 2000,
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* 2001 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* 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.
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||||
*
|
||||
* GnuPG is distributed in the hope that it will be useful,
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||||
* 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
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*/
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/*******************
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* mpi_limb_t
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* mpihelp_lshift( mpi_ptr_t wp, ($4)
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* mpi_ptr_t up, ($5)
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* mpi_size_t usize, ($6)
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* unsigned cnt) ($7)
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*/
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.text
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.align 2
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.globl mpihelp_lshift
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.ent mpihelp_lshift
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mpihelp_lshift:
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.set noreorder
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.set nomacro
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dsll $2,$6,3
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daddu $5,$5,$2 # make r5 point at end of src
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ld $10,-8($5) # load first limb
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dsubu $13,$0,$7
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daddu $4,$4,$2 # make r4 point at end of res
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daddiu $6,$6,-1
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and $9,$6,4-1 # number of limbs in first loop
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beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
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dsrl $2,$10,$13 # compute function result
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dsubu $6,$6,$9
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.Loop0: ld $3,-16($5)
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daddiu $4,$4,-8
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daddiu $5,$5,-8
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daddiu $9,$9,-1
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dsll $11,$10,$7
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dsrl $12,$3,$13
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move $10,$3
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or $8,$11,$12
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bne $9,$0,.Loop0
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sd $8,0($4)
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.L0: beq $6,$0,.Lend
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nop
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.Loop: ld $3,-16($5)
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daddiu $4,$4,-32
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daddiu $6,$6,-4
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dsll $11,$10,$7
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dsrl $12,$3,$13
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ld $10,-24($5)
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dsll $14,$3,$7
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or $8,$11,$12
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sd $8,24($4)
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dsrl $9,$10,$13
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ld $3,-32($5)
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dsll $11,$10,$7
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or $8,$14,$9
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sd $8,16($4)
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dsrl $12,$3,$13
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ld $10,-40($5)
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dsll $14,$3,$7
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or $8,$11,$12
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sd $8,8($4)
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dsrl $9,$10,$13
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daddiu $5,$5,-32
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or $8,$14,$9
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bgtz $6,.Loop
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sd $8,0($4)
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.Lend: dsll $8,$10,$7
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j $31
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sd $8,-8($4)
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.end mpihelp_lshift
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89
mpi/mips3/mpih-mul1.S
Normal file
89
mpi/mips3/mpih-mul1.S
Normal file
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@ -0,0 +1,89 @@
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/* mips3 mpih-mul1.S -- Multiply a limb vector with a limb and store
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* the result in a second limb vector.
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*
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* Copyright (C) 1992, 1994, 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
|
||||
*/
|
||||
|
||||
|
||||
/*******************
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* mpi_limb_t
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* mpihelp_mul_1( mpi_ptr_t res_ptr, (r4)
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* mpi_ptr_t s1_ptr, (r5)
|
||||
* mpi_size_t s1_size, (r6)
|
||||
* mpi_limb_t s2_limb) (r7)
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||||
*/
|
||||
|
||||
.text
|
||||
.align 4
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.globl mpihelp_mul_1
|
||||
.ent mpihelp_mul_1
|
||||
mpihelp_mul_1:
|
||||
.set noreorder
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||||
.set nomacro
|
||||
|
||||
/* # warm up phase 0 */
|
||||
ld $8,0($5)
|
||||
|
||||
/* # warm up phase 1 */
|
||||
daddiu $5,$5,8
|
||||
dmultu $8,$7
|
||||
|
||||
daddiu $6,$6,-1
|
||||
beq $6,$0,$LC0
|
||||
move $2,$0 # zero cy2
|
||||
|
||||
daddiu $6,$6,-1
|
||||
beq $6,$0,$LC1
|
||||
ld $8,0($5) # load new s1 limb as early as possible
|
||||
|
||||
Loop: mflo $10
|
||||
mfhi $9
|
||||
daddiu $5,$5,8
|
||||
daddu $10,$10,$2 # add old carry limb to low product limb
|
||||
dmultu $8,$7
|
||||
ld $8,0($5) # load new s1 limb as early as possible
|
||||
daddiu $6,$6,-1 # decrement loop counter
|
||||
sltu $2,$10,$2 # carry from previous addition -> $2
|
||||
sd $10,0($4)
|
||||
daddiu $4,$4,8
|
||||
bne $6,$0,Loop
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
/* # cool down phase 1 */
|
||||
$LC1: mflo $10
|
||||
mfhi $9
|
||||
daddu $10,$10,$2
|
||||
sltu $2,$10,$2
|
||||
dmultu $8,$7
|
||||
sd $10,0($4)
|
||||
daddiu $4,$4,8
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
/* # cool down phase 0 */
|
||||
$LC0: mflo $10
|
||||
mfhi $9
|
||||
daddu $10,$10,$2
|
||||
sltu $2,$10,$2
|
||||
sd $10,0($4)
|
||||
j $31
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
.end mpihelp_mul_1
|
||||
|
||||
101
mpi/mips3/mpih-mul2.S
Normal file
101
mpi/mips3/mpih-mul2.S
Normal file
|
|
@ -0,0 +1,101 @@
|
|||
/* MIPS3 addmul_1 -- Multiply a limb vector with a single limb and
|
||||
* add the product to a second limb vector.
|
||||
*
|
||||
* Copyright (C) 1992, 1994, 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_addmul_1( mpi_ptr_t res_ptr, (r4)
|
||||
* mpi_ptr_t s1_ptr, (r5)
|
||||
* mpi_size_t s1_size, (r6)
|
||||
* mpi_limb_t s2_limb) (r7)
|
||||
*/
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl mpihelp_addmul_1
|
||||
.ent mpihelp_addmul_1
|
||||
mpihelp_addmul_1:
|
||||
.set noreorder
|
||||
.set nomacro
|
||||
|
||||
/* # warm up phase 0 */
|
||||
ld $8,0($5)
|
||||
|
||||
/* # warm up phase 1 */
|
||||
daddiu $5,$5,8
|
||||
dmultu $8,$7
|
||||
|
||||
daddiu $6,$6,-1
|
||||
beq $6,$0,$LC0
|
||||
move $2,$0 # zero cy2
|
||||
|
||||
daddiu $6,$6,-1
|
||||
beq $6,$0,$LC1
|
||||
ld $8,0($5) # load new s1 limb as early as possible
|
||||
|
||||
Loop: ld $10,0($4)
|
||||
mflo $3
|
||||
mfhi $9
|
||||
daddiu $5,$5,8
|
||||
daddu $3,$3,$2 # add old carry limb to low product limb
|
||||
dmultu $8,$7
|
||||
ld $8,0($5) # load new s1 limb as early as possible
|
||||
daddiu $6,$6,-1 # decrement loop counter
|
||||
sltu $2,$3,$2 # carry from previous addition -> $2
|
||||
daddu $3,$10,$3
|
||||
sltu $10,$3,$10
|
||||
daddu $2,$2,$10
|
||||
sd $3,0($4)
|
||||
daddiu $4,$4,8
|
||||
bne $6,$0,Loop
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
/* # cool down phase 1 */
|
||||
$LC1: ld $10,0($4)
|
||||
mflo $3
|
||||
mfhi $9
|
||||
daddu $3,$3,$2
|
||||
sltu $2,$3,$2
|
||||
dmultu $8,$7
|
||||
daddu $3,$10,$3
|
||||
sltu $10,$3,$10
|
||||
daddu $2,$2,$10
|
||||
sd $3,0($4)
|
||||
daddiu $4,$4,8
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
/* # cool down phase 0 */
|
||||
$LC0: ld $10,0($4)
|
||||
mflo $3
|
||||
mfhi $9
|
||||
daddu $3,$3,$2
|
||||
sltu $2,$3,$2
|
||||
daddu $3,$10,$3
|
||||
sltu $10,$3,$10
|
||||
daddu $2,$2,$10
|
||||
sd $3,0($4)
|
||||
j $31
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
.end mpihelp_addmul_1
|
||||
|
||||
101
mpi/mips3/mpih-mul3.S
Normal file
101
mpi/mips3/mpih-mul3.S
Normal file
|
|
@ -0,0 +1,101 @@
|
|||
/* MIPS3 submul_1 -- Multiply a limb vector with a single limb and
|
||||
* subtract the product from a second limb vector.
|
||||
*
|
||||
* Copyright (C) 1992, 1994, 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_submul_1( mpi_ptr_t res_ptr, (r4)
|
||||
* mpi_ptr_t s1_ptr, (r5)
|
||||
* mpi_size_t s1_size, (r6)
|
||||
* mpi_limb_t s2_limb) (r7)
|
||||
*/
|
||||
|
||||
.text
|
||||
.align 4
|
||||
.globl mpihelp_submul_1
|
||||
.ent mpihelp_submul_1
|
||||
mpihelp_submul_1:
|
||||
.set noreorder
|
||||
.set nomacro
|
||||
|
||||
/* # warm up phase 0 */
|
||||
ld $8,0($5)
|
||||
|
||||
/* # warm up phase 1 */
|
||||
daddiu $5,$5,8
|
||||
dmultu $8,$7
|
||||
|
||||
daddiu $6,$6,-1
|
||||
beq $6,$0,$LC0
|
||||
move $2,$0 # zero cy2
|
||||
|
||||
daddiu $6,$6,-1
|
||||
beq $6,$0,$LC1
|
||||
ld $8,0($5) # load new s1 limb as early as possible
|
||||
|
||||
Loop: ld $10,0($4)
|
||||
mflo $3
|
||||
mfhi $9
|
||||
daddiu $5,$5,8
|
||||
daddu $3,$3,$2 # add old carry limb to low product limb
|
||||
dmultu $8,$7
|
||||
ld $8,0($5) # load new s1 limb as early as possible
|
||||
daddiu $6,$6,-1 # decrement loop counter
|
||||
sltu $2,$3,$2 # carry from previous addition -> $2
|
||||
dsubu $3,$10,$3
|
||||
sgtu $10,$3,$10
|
||||
daddu $2,$2,$10
|
||||
sd $3,0($4)
|
||||
daddiu $4,$4,8
|
||||
bne $6,$0,Loop
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
/* # cool down phase 1 */
|
||||
$LC1: ld $10,0($4)
|
||||
mflo $3
|
||||
mfhi $9
|
||||
daddu $3,$3,$2
|
||||
sltu $2,$3,$2
|
||||
dmultu $8,$7
|
||||
dsubu $3,$10,$3
|
||||
sgtu $10,$3,$10
|
||||
daddu $2,$2,$10
|
||||
sd $3,0($4)
|
||||
daddiu $4,$4,8
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
/* # cool down phase 0 */
|
||||
$LC0: ld $10,0($4)
|
||||
mflo $3
|
||||
mfhi $9
|
||||
daddu $3,$3,$2
|
||||
sltu $2,$3,$2
|
||||
dsubu $3,$10,$3
|
||||
sgtu $10,$3,$10
|
||||
daddu $2,$2,$10
|
||||
sd $3,0($4)
|
||||
j $31
|
||||
daddu $2,$9,$2 # add high product limb and carry from addition
|
||||
|
||||
.end mpihelp_submul_1
|
||||
|
||||
95
mpi/mips3/mpih-rshift.S
Normal file
95
mpi/mips3/mpih-rshift.S
Normal file
|
|
@ -0,0 +1,95 @@
|
|||
/* mips3 rshift
|
||||
*
|
||||
* 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_rshift( mpi_ptr_t wp, ($4)
|
||||
* mpi_ptr_t up, ($5)
|
||||
* mpi_size_t usize, ($6)
|
||||
* unsigned cnt) ($7)
|
||||
*/
|
||||
|
||||
.text
|
||||
.align 2
|
||||
.globl mpihelp_rshift
|
||||
.ent mpihelp_rshift
|
||||
mpihelp_rshift:
|
||||
.set noreorder
|
||||
.set nomacro
|
||||
|
||||
ld $10,0($5) # load first limb
|
||||
dsubu $13,$0,$7
|
||||
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
|
||||
dsll $2,$10,$13 # compute function result
|
||||
|
||||
dsubu $6,$6,$9
|
||||
|
||||
.Loop0: ld $3,8($5)
|
||||
daddiu $4,$4,8
|
||||
daddiu $5,$5,8
|
||||
daddiu $9,$9,-1
|
||||
dsrl $11,$10,$7
|
||||
dsll $12,$3,$13
|
||||
move $10,$3
|
||||
or $8,$11,$12
|
||||
bne $9,$0,.Loop0
|
||||
sd $8,-8($4)
|
||||
|
||||
.L0: beq $6,$0,.Lend
|
||||
nop
|
||||
|
||||
.Loop: ld $3,8($5)
|
||||
daddiu $4,$4,32
|
||||
daddiu $6,$6,-4
|
||||
dsrl $11,$10,$7
|
||||
dsll $12,$3,$13
|
||||
|
||||
ld $10,16($5)
|
||||
dsrl $14,$3,$7
|
||||
or $8,$11,$12
|
||||
sd $8,-32($4)
|
||||
dsll $9,$10,$13
|
||||
|
||||
ld $3,24($5)
|
||||
dsrl $11,$10,$7
|
||||
or $8,$14,$9
|
||||
sd $8,-24($4)
|
||||
dsll $12,$3,$13
|
||||
|
||||
ld $10,32($5)
|
||||
dsrl $14,$3,$7
|
||||
or $8,$11,$12
|
||||
sd $8,-16($4)
|
||||
dsll $9,$10,$13
|
||||
|
||||
daddiu $5,$5,32
|
||||
or $8,$14,$9
|
||||
bgtz $6,.Loop
|
||||
sd $8,-8($4)
|
||||
|
||||
.Lend: dsrl $8,$10,$7
|
||||
j $31
|
||||
sd $8,0($4)
|
||||
.end mpihelp_rshift
|
||||
|
||||
125
mpi/mips3/mpih-sub1.S
Normal file
125
mpi/mips3/mpih-sub1.S
Normal file
|
|
@ -0,0 +1,125 @@
|
|||
/* mips3 sub_n -- Subtract two limb vectors of the same length > 0 and
|
||||
* store difference in a third limb vector.
|
||||
*
|
||||
* Copyright (C) 1995, 1998, 1999, 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_sub_n( mpi_ptr_t res_ptr, (r4)
|
||||
* mpi_ptr_t s1_ptr, (r5)
|
||||
* mpi_ptr_t s2_ptr, (r6)
|
||||
* mpi_size_t size) (r7)
|
||||
*/
|
||||
|
||||
|
||||
.text
|
||||
.align 2
|
||||
.globl mpihelp_sub_n
|
||||
.ent mpihelp_sub_n
|
||||
mpihelp_sub_n:
|
||||
.set noreorder
|
||||
.set nomacro
|
||||
|
||||
ld $10,0($5)
|
||||
ld $11,0($6)
|
||||
|
||||
daddiu $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
|
||||
|
||||
dsubu $7,$7,$9
|
||||
|
||||
.Loop0: daddiu $9,$9,-1
|
||||
ld $12,8($5)
|
||||
daddu $11,$11,$2
|
||||
ld $13,8($6)
|
||||
sltu $8,$11,$2
|
||||
dsubu $11,$10,$11
|
||||
sltu $2,$10,$11
|
||||
sd $11,0($4)
|
||||
or $2,$2,$8
|
||||
|
||||
daddiu $5,$5,8
|
||||
daddiu $6,$6,8
|
||||
move $10,$12
|
||||
move $11,$13
|
||||
bne $9,$0,.Loop0
|
||||
daddiu $4,$4,8
|
||||
|
||||
.L0: beq $7,$0,.Lend
|
||||
nop
|
||||
|
||||
.Loop: daddiu $7,$7,-4
|
||||
|
||||
ld $12,8($5)
|
||||
daddu $11,$11,$2
|
||||
ld $13,8($6)
|
||||
sltu $8,$11,$2
|
||||
dsubu $11,$10,$11
|
||||
sltu $2,$10,$11
|
||||
sd $11,0($4)
|
||||
or $2,$2,$8
|
||||
|
||||
ld $10,16($5)
|
||||
daddu $13,$13,$2
|
||||
ld $11,16($6)
|
||||
sltu $8,$13,$2
|
||||
dsubu $13,$12,$13
|
||||
sltu $2,$12,$13
|
||||
sd $13,8($4)
|
||||
or $2,$2,$8
|
||||
|
||||
ld $12,24($5)
|
||||
daddu $11,$11,$2
|
||||
ld $13,24($6)
|
||||
sltu $8,$11,$2
|
||||
dsubu $11,$10,$11
|
||||
sltu $2,$10,$11
|
||||
sd $11,16($4)
|
||||
or $2,$2,$8
|
||||
|
||||
ld $10,32($5)
|
||||
daddu $13,$13,$2
|
||||
ld $11,32($6)
|
||||
sltu $8,$13,$2
|
||||
dsubu $13,$12,$13
|
||||
sltu $2,$12,$13
|
||||
sd $13,24($4)
|
||||
or $2,$2,$8
|
||||
|
||||
daddiu $5,$5,32
|
||||
daddiu $6,$6,32
|
||||
|
||||
bne $7,$0,.Loop
|
||||
daddiu $4,$4,32
|
||||
|
||||
.Lend: daddu $11,$11,$2
|
||||
sltu $8,$11,$2
|
||||
dsubu $11,$10,$11
|
||||
sltu $2,$10,$11
|
||||
sd $11,0($4)
|
||||
j $31
|
||||
or $2,$2,$8
|
||||
|
||||
.end mpihelp_sub_n
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue