--- /dev/null
+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+
+# This module doesn't present direct interest for OpenSSL, because it
+# doesn't provide better performance for longer keys. While 512-bit
+# RSA private key operations are 40% faster, 1024-bit ones are hardly
+# faster at all, while longer key operations are slower by up to 20%.
+# It might be of interest to embedded system developers though, as
+# it's smaller than 1KB, yet offers ~3x improvement over compiler
+# generated code.
+
+######################################################################
+# There is a number of MIPS ABI in use, O32 and N32/64 are most
+# widely used. Then there is a new contender: NUBI. It appears that if
+# one picks the latter, it's possible to arrange code in ABI neutral
+# manner. Therefore let's stick to NUBI register layout:
+#
+($zero,$at,$t0,$t1,$t2)=map("\$$_",(0..2,24,25));
+($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
+($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7,$s8,$s9,$s10,$s11)=map("\$$_",(12..23));
+($gp,$tp,$sp,$fp,$ra)=map("\$$_",(3,28..31));
+#
+# The return value is placed in $a0. Following coding rules facilitate
+# interoperability:
+#
+# - never ever touch $tp, "thread pointer", former $gp;
+# - copy return value to $t0, former $v0 [or to $a0 if you're adapting
+# old code];
+# - on O32 populate $a4-$a7 with 'lw $aN,4*N($sp)' if necessary;
+#
+# For reference here is register layout for N32/64 MIPS ABIs:
+#
+# ($zero,$at,$v0,$v1)=map("\$$_",(0..3));
+# ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
+# ($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25));
+# ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23));
+# ($gp,$sp,$fp,$ra)=map("\$$_",(28..31));
+#
+$flavour = shift; # supported flavours are o32,n32,64,nubi32,nubi64
+
+if ($flavour =~ /64|n32/i) {
+ $PTR_ADD="dadd"; # incidentally works even on n32
+ $PTR_SUB="dsub"; # incidentally works even on n32
+ $REG_S="sd";
+ $REG_L="ld";
+ $SZREG=8;
+} else {
+ $PTR_ADD="add";
+ $PTR_SUB="sub";
+ $REG_S="sw";
+ $REG_L="lw";
+ $SZREG=4;
+}
+$SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? 0x00fff000 : 0x00ff0000;
+#
+# <appro@openssl.org>
+#
+######################################################################
+
+while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
+open STDOUT,">$output";
+
+if ($flavour =~ /64|n32/i) {
+ $LD="ld";
+ $ST="sd";
+ $MULTU="dmultu";
+ $ADDU="daddu";
+ $SUBU="dsubu";
+ $BNSZ=8;
+} else {
+ $LD="lw";
+ $ST="sw";
+ $MULTU="multu";
+ $ADDU="addu";
+ $SUBU="subu";
+ $BNSZ=4;
+}
+
+# int bn_mul_mont(
+$rp=$a0; # BN_ULONG *rp,
+$ap=$a1; # const BN_ULONG *ap,
+$bp=$a2; # const BN_ULONG *bp,
+$np=$a3; # const BN_ULONG *np,
+$n0=$a4; # const BN_ULONG *n0,
+$num=$a5; # int num);
+
+$lo0=$a6;
+$hi0=$a7;
+$lo1=$t1;
+$hi1=$t2;
+$aj=$s0;
+$bi=$s1;
+$nj=$s2;
+$tp=$s3;
+$alo=$s4;
+$ahi=$s5;
+$nlo=$s6;
+$nhi=$s7;
+$tj=$s8;
+$i=$s9;
+$j=$s10;
+$m1=$s11;
+
+$FRAMESIZE=14;
+
+$code=<<___;
+.text
+
+.set noat
+.set noreorder
+
+.align 5
+.globl bn_mul_mont
+.ent bn_mul_mont
+bn_mul_mont:
+___
+$code.=<<___ if ($flavour =~ /o32/i);
+ lw $n0,16($sp)
+ lw $num,20($sp)
+___
+$code.=<<___;
+ slt $at,$num,4
+ beqzl $at,bn_mul_mont_internal
+ li $t0,0
+ jr $ra
+ li $a0,0
+.end bn_mul_mont
+
+.align 5
+.ent bn_mul_mont_internal
+bn_mul_mont_internal:
+ .frame $fp,$FRAMESIZE*$SZREG,$ra
+ .mask 0x40000000|$SAVED_REGS_MASK,-$SZREG
+ $PTR_SUB $sp,$FRAMESIZE*$SZREG
+ $REG_S $fp,($FRAMESIZE-1)*$SZREG($sp)
+ $REG_S $s11,($FRAMESIZE-2)*$SZREG($sp)
+ $REG_S $s10,($FRAMESIZE-3)*$SZREG($sp)
+ $REG_S $s9,($FRAMESIZE-4)*$SZREG($sp)
+ $REG_S $s8,($FRAMESIZE-5)*$SZREG($sp)
+ $REG_S $s7,($FRAMESIZE-6)*$SZREG($sp)
+ $REG_S $s6,($FRAMESIZE-7)*$SZREG($sp)
+ $REG_S $s5,($FRAMESIZE-8)*$SZREG($sp)
+ $REG_S $s4,($FRAMESIZE-9)*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);
+ $REG_S $s3,($FRAMESIZE-10)*$SZREG($sp)
+ $REG_S $s2,($FRAMESIZE-11)*$SZREG($sp)
+ $REG_S $s1,($FRAMESIZE-12)*$SZREG($sp)
+ $REG_S $s0,($FRAMESIZE-13)*$SZREG($sp)
+___
+$code.=<<___;
+ move $fp,$sp
+
+ .set reorder
+ $LD $n0,0($n0)
+ $LD $bi,0($bp) # bp[0]
+ $LD $aj,0($ap) # ap[0]
+ $LD $nj,0($np) # np[0]
+
+ $PTR_SUB $sp,2*$BNSZ # place for two extra words
+ sll $num,`log($BNSZ)/log(2)`
+ li $at,-4096
+ $PTR_SUB $sp,$num
+ and $sp,$at
+
+ $MULTU $aj,$bi
+ $LD $alo,$BNSZ($ap)
+ $LD $nlo,$BNSZ($np)
+ mflo $lo0
+ mfhi $hi0
+ $MULTU $lo0,$n0
+ mflo $m1
+
+ $MULTU $alo,$bi
+ mflo $alo
+ mfhi $ahi
+
+ $MULTU $nj,$m1
+ mflo $lo1
+ mfhi $hi1
+ $MULTU $nlo,$m1
+ $ADDU $lo1,$lo0
+ sltu $at,$lo1,$lo0
+ $ADDU $hi1,$at
+ mflo $nlo
+ mfhi $nhi
+
+ move $tp,$sp
+ li $j,2*$BNSZ
+.align 4
+.L1st:
+ .set noreorder
+ $PTR_ADD $aj,$ap,$j
+ $PTR_ADD $nj,$np,$j
+ $LD $aj,($aj)
+ $LD $nj,($nj)
+
+ $MULTU $aj,$bi
+ $ADDU $lo0,$alo,$hi0
+ $ADDU $lo1,$nlo,$hi1
+ sltu $at,$lo0,$hi0
+ sltu $t0,$lo1,$hi1
+ $ADDU $hi0,$ahi,$at
+ $ADDU $hi1,$nhi,$t0
+ mflo $alo
+ mfhi $ahi
+
+ $ADDU $lo1,$lo0
+ sltu $at,$lo1,$lo0
+ $MULTU $nj,$m1
+ $ADDU $hi1,$at
+ addu $j,$BNSZ
+ $ST $lo1,($tp)
+ sltu $t0,$j,$num
+ mflo $nlo
+ mfhi $nhi
+
+ bnez $t0,.L1st
+ $PTR_ADD $tp,$BNSZ
+ .set reorder
+
+ $ADDU $lo0,$alo,$hi0
+ sltu $at,$lo0,$hi0
+ $ADDU $hi0,$ahi,$at
+
+ $ADDU $lo1,$nlo,$hi1
+ sltu $t0,$lo1,$hi1
+ $ADDU $hi1,$nhi,$t0
+ $ADDU $lo1,$lo0
+ sltu $at,$lo1,$lo0
+ $ADDU $hi1,$at
+
+ $ST $lo1,($tp)
+
+ $ADDU $hi1,$hi0
+ sltu $at,$hi1,$hi0
+ $ST $hi1,$BNSZ($tp)
+ $ST $at,2*$BNSZ($tp)
+
+ li $i,$BNSZ
+.align 4
+.Louter:
+ $PTR_ADD $bi,$bp,$i
+ $LD $bi,($bi)
+ $LD $aj,($ap)
+ $LD $alo,$BNSZ($ap)
+ $LD $tj,($sp)
+
+ $MULTU $aj,$bi
+ $LD $nj,($np)
+ $LD $nlo,$BNSZ($np)
+ mflo $lo0
+ mfhi $hi0
+ $ADDU $lo0,$tj
+ $MULTU $lo0,$n0
+ sltu $at,$lo0,$tj
+ $ADDU $hi0,$at
+ mflo $m1
+
+ $MULTU $alo,$bi
+ mflo $alo
+ mfhi $ahi
+
+ $MULTU $nj,$m1
+ mflo $lo1
+ mfhi $hi1
+
+ $MULTU $nlo,$m1
+ $ADDU $lo1,$lo0
+ sltu $at,$lo1,$lo0
+ $ADDU $hi1,$at
+ mflo $nlo
+ mfhi $nhi
+
+ move $tp,$sp
+ li $j,2*$BNSZ
+ $LD $tj,$BNSZ($tp)
+.align 4
+.Linner:
+ .set noreorder
+ $PTR_ADD $aj,$ap,$j
+ $PTR_ADD $nj,$np,$j
+ $LD $aj,($aj)
+ $LD $nj,($nj)
+
+ $MULTU $aj,$bi
+ $ADDU $lo0,$alo,$hi0
+ $ADDU $lo1,$nlo,$hi1
+ sltu $at,$lo0,$hi0
+ sltu $t0,$lo1,$hi1
+ $ADDU $hi0,$ahi,$at
+ $ADDU $hi1,$nhi,$t0
+ mflo $alo
+ mfhi $ahi
+
+ $ADDU $lo0,$tj
+ addu $j,$BNSZ
+ $MULTU $nj,$m1
+ sltu $at,$lo0,$tj
+ $ADDU $lo1,$lo0
+ $ADDU $hi0,$at
+ sltu $t0,$lo1,$lo0
+ $LD $tj,2*$BNSZ($tp)
+ $ADDU $hi1,$t0
+ sltu $at,$j,$num
+ mflo $nlo
+ mfhi $nhi
+ $ST $lo1,($tp)
+ bnez $at,.Linner
+ $PTR_ADD $tp,$BNSZ
+ .set reorder
+
+ $ADDU $lo0,$alo,$hi0
+ sltu $at,$lo0,$hi0
+ $ADDU $hi0,$ahi,$at
+ $ADDU $lo0,$tj
+ sltu $t0,$lo0,$tj
+ $ADDU $hi0,$t0
+
+ $LD $tj,2*$BNSZ($tp)
+ $ADDU $lo1,$nlo,$hi1
+ sltu $at,$lo1,$hi1
+ $ADDU $hi1,$nhi,$at
+ $ADDU $lo1,$lo0
+ sltu $t0,$lo1,$lo0
+ $ADDU $hi1,$t0
+ $ST $lo1,($tp)
+
+ $ADDU $lo1,$hi1,$hi0
+ sltu $hi1,$lo1,$hi0
+ $ADDU $lo1,$tj
+ sltu $at,$lo1,$tj
+ $ADDU $hi1,$at
+ $ST $lo1,$BNSZ($tp)
+ $ST $hi1,2*$BNSZ($tp)
+
+ addu $i,$BNSZ
+ sltu $t0,$i,$num
+ bnez $t0,.Louter
+\f
+ .set noreorder
+ $PTR_ADD $tj,$sp,$num # &tp[num]
+ move $tp,$sp
+ move $ap,$sp
+ li $hi0,0 # clear borrow bit
+
+.align 4
+.Lsub: $LD $lo0,($tp)
+ $LD $lo1,($np)
+ $PTR_ADD $tp,$BNSZ
+ $PTR_ADD $np,$BNSZ
+ $SUBU $lo1,$lo0,$lo1 # tp[i]-np[i]
+ sgtu $at,$lo1,$lo0
+ $SUBU $lo0,$lo1,$hi0
+ sgtu $hi0,$lo0,$lo1
+ $ST $lo0,($rp)
+ or $hi0,$at
+ sltu $at,$tp,$tj
+ bnez $at,.Lsub
+ $PTR_ADD $rp,$BNSZ
+
+ $SUBU $hi0,$hi1,$hi0 # handle upmost overflow bit
+ move $tp,$sp
+ $PTR_SUB $rp,$num # restore rp
+ not $hi1,$hi0
+
+ and $ap,$hi0,$sp
+ and $bp,$hi1,$rp
+ or $ap,$ap,$bp # ap=borrow?tp:rp
+
+.align 4
+.Lcopy: $LD $aj,($ap)
+ $PTR_ADD $ap,$BNSZ
+ $ST $zero,($tp)
+ $PTR_ADD $tp,$BNSZ
+ sltu $at,$tp,$tj
+ $ST $aj,($rp)
+ bnez $at,.Lcopy
+ $PTR_ADD $rp,$BNSZ
+
+ li $a0,1
+ li $t0,1
+
+ .set noreorder
+ move $sp,$fp
+ $REG_L $fp,($FRAMESIZE-1)*$SZREG($sp)
+ $REG_L $s11,($FRAMESIZE-2)*$SZREG($sp)
+ $REG_L $s10,($FRAMESIZE-3)*$SZREG($sp)
+ $REG_L $s9,($FRAMESIZE-4)*$SZREG($sp)
+ $REG_L $s8,($FRAMESIZE-5)*$SZREG($sp)
+ $REG_L $s7,($FRAMESIZE-6)*$SZREG($sp)
+ $REG_L $s6,($FRAMESIZE-7)*$SZREG($sp)
+ $REG_L $s5,($FRAMESIZE-8)*$SZREG($sp)
+ $REG_L $s4,($FRAMESIZE-9)*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);
+ $REG_L $s3,($FRAMESIZE-10)*$SZREG($sp)
+ $REG_L $s2,($FRAMESIZE-11)*$SZREG($sp)
+ $REG_L $s1,($FRAMESIZE-12)*$SZREG($sp)
+ $REG_L $s0,($FRAMESIZE-13)*$SZREG($sp)
+___
+$code.=<<___;
+ jr $ra
+ $PTR_ADD $sp,$FRAMESIZE*$SZREG
+.end bn_mul_mont_internal
+.rdata
+.asciiz "Montgomery Multiplication for MIPS, CRYPTOGAMS by <appro\@openssl.org>"
+___
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+
+print $code;
+close STDOUT;
# vectorized Xupdate on MIPSIII/IV, but the goal was to code MIPS32-
# compatible subroutine. There is room for minor optimization on
# little-endian platforms...
+
+######################################################################
+# There is a number of MIPS ABI in use, O32 and N32/64 are most
+# widely used. Then there is a new contender: NUBI. It appears that if
+# one picks the latter, it's possible to arrange code in ABI neutral
+# manner. Therefore let's stick to NUBI register layout:
+#
+($zero,$at,$t0,$t1,$t2)=map("\$$_",(0..2,24,25));
+($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
+($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7,$s8,$s9,$s10,$s11)=map("\$$_",(12..23));
+($gp,$tp,$sp,$fp,$ra)=map("\$$_",(3,28..31));
+#
+# The return value is placed in $a0. Following coding rules facilitate
+# interoperability:
+#
+# - never ever touch $tp, "thread pointer", former $gp;
+# - copy return value to $t0, former $v0 [or to $a0 if you're adapting
+# old code];
+# - on O32 populate $a4-$a7 with 'lw $aN,4*N($sp)' if necessary;
+#
+# For reference here is register layout for N32/64 MIPS ABIs:
+#
+# ($zero,$at,$v0,$v1)=map("\$$_",(0..3));
+# ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
+# ($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25));
+# ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23));
+# ($gp,$sp,$fp,$ra)=map("\$$_",(28..31));
+#
+$flavour = shift; # supported flavours are o32,n32,64,nubi32,nubi64
+
+if ($flavour =~ /64|n32/i) {
+ $PTR_ADD="dadd"; # incidentally works even on n32
+ $PTR_SUB="dsub"; # incidentally works even on n32
+ $REG_S="sd";
+ $REG_L="ld";
+ $PTR_SLL="dsll"; # incidentally works even on n32
+ $SZREG=8;
+} else {
+ $PTR_ADD="add";
+ $PTR_SUB="sub";
+ $REG_S="sw";
+ $REG_L="lw";
+ $PTR_SLL="sll";
+ $SZREG=4;
+}
+$SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? 0x00fff008 : 0x00ff0000;
+#
+# <appro@openssl.org>
#
-# The code is somewhat IRIX-centric, i.e. is likely to require minor
-# adaptations for other OSes...
+######################################################################
+
+for (@ARGV) { $big_endian=1 if (/\-DB_ENDIAN/);
+ $big_endian=0 if (/\-DL_ENDIAN/);
+ $output=$_ if (/^\w[\w\-]*\.\w+$/); }
+open STDOUT,">$output";
-for (@ARGV) { $big_endian=1 if (/\-DB_ENDIAN/);
- $big_endian=0 if (/\-DL_ENDIAN/); }
if (!defined($big_endian))
{ $big_endian=(unpack('L',pack('N',1))==1); }
$C="\$3";
$D="\$7";
$E="\$24"; @V=($A,$B,$C,$D,$E);
-$t0="\$25"; # jp,t9
-$t1="\$28"; # gp
-$t2="\$30"; # fp,s8
+$t0="\$25";
+$t1=$num; # $num is offloaded to stack
+$t2="\$30"; # fp
$K="\$31"; # ra
$FRAMESIZE=16;
}
$code=<<___;
-#include <asm.h>
-#include <regdef.h>
-
.text
.set noat
.globl sha1_block_data_order
.ent sha1_block_data_order
sha1_block_data_order:
- .frame sp,$FRAMESIZE*SZREG,zero
- .mask 0xd0ff0000,-$FRAMESIZE*SZREG
+ .frame $sp,$FRAMESIZE*$SZREG,$ra
+ .mask 0xd0000000|$SAVED_REGS_MASK,-$SZREG
.set noreorder
- PTR_SUB sp,$FRAMESIZE*SZREG
- REG_S \$31,($FRAMESIZE-1)*SZREG(sp)
- REG_S \$30,($FRAMESIZE-2)*SZREG(sp)
- REG_S \$28,($FRAMESIZE-3)*SZREG(sp)
- REG_S \$23,($FRAMESIZE-4)*SZREG(sp)
- REG_S \$22,($FRAMESIZE-5)*SZREG(sp)
- REG_S \$21,($FRAMESIZE-6)*SZREG(sp)
- REG_S \$20,($FRAMESIZE-7)*SZREG(sp)
- REG_S \$19,($FRAMESIZE-8)*SZREG(sp)
- REG_S \$18,($FRAMESIZE-9)*SZREG(sp)
- REG_S \$17,($FRAMESIZE-10)*SZREG(sp)
- REG_S \$16,($FRAMESIZE-11)*SZREG(sp)
-
+ $PTR_SUB $sp,$FRAMESIZE*$SZREG
+ $REG_S $ra,($FRAMESIZE-1)*$SZREG($sp)
+ $REG_S $fp,($FRAMESIZE-2)*$SZREG($sp)
+ $REG_S $s11,($FRAMESIZE-3)*$SZREG($sp)
+ $REG_S $s10,($FRAMESIZE-4)*$SZREG($sp)
+ $REG_S $s9,($FRAMESIZE-5)*$SZREG($sp)
+ $REG_S $s8,($FRAMESIZE-6)*$SZREG($sp)
+ $REG_S $s7,($FRAMESIZE-7)*$SZREG($sp)
+ $REG_S $s6,($FRAMESIZE-8)*$SZREG($sp)
+ $REG_S $s5,($FRAMESIZE-9)*$SZREG($sp)
+ $REG_S $s4,($FRAMESIZE-10)*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);
+ $REG_S $s3,($FRAMESIZE-11)*$SZREG($sp)
+ $REG_S $s2,($FRAMESIZE-12)*$SZREG($sp)
+ $REG_S $s1,($FRAMESIZE-13)*$SZREG($sp)
+ $REG_S $s0,($FRAMESIZE-14)*$SZREG($sp)
+ $REG_S $gp,($FRAMESIZE-15)*$SZREG($sp)
+___
+$code.=<<___;
+ $PTR_SLL $num,6
+ $PTR_ADD $num,$inp
+ $REG_S $num,0($sp)
lw $A,0($ctx)
lw $B,4($ctx)
lw $C,8($ctx)
___
for (;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
$code.=<<___;
+ $PTR_ADD $inp,64
+ $REG_L $num,0($sp)
+
addu $A,$X[0]
addu $B,$X[1]
sw $A,0($ctx)
addu $D,$X[3]
sw $B,4($ctx)
addu $E,$X[4]
- PTR_SUB $num,1
sw $C,8($ctx)
sw $D,12($ctx)
sw $E,16($ctx)
.set noreorder
- bnez $num,.Loop
- PTR_ADD $inp,64
+ bne $inp,$num,.Loop
+ nop
.set noreorder
- REG_L \$31,($FRAMESIZE-1)*SZREG(sp)
- REG_L \$30,($FRAMESIZE-2)*SZREG(sp)
- REG_L \$28,($FRAMESIZE-3)*SZREG(sp)
- REG_L \$23,($FRAMESIZE-4)*SZREG(sp)
- REG_L \$22,($FRAMESIZE-5)*SZREG(sp)
- REG_L \$21,($FRAMESIZE-6)*SZREG(sp)
- REG_L \$20,($FRAMESIZE-7)*SZREG(sp)
- REG_L \$19,($FRAMESIZE-8)*SZREG(sp)
- REG_L \$18,($FRAMESIZE-9)*SZREG(sp)
- REG_L \$17,($FRAMESIZE-10)*SZREG(sp)
- REG_L \$16,($FRAMESIZE-11)*SZREG(sp)
- jr ra
- PTR_ADD sp,$FRAMESIZE*SZREG
+ $REG_L $ra,($FRAMESIZE-1)*$SZREG($sp)
+ $REG_L $fp,($FRAMESIZE-2)*$SZREG($sp)
+ $REG_L $s11,($FRAMESIZE-3)*$SZREG($sp)
+ $REG_L $s10,($FRAMESIZE-4)*$SZREG($sp)
+ $REG_L $s9,($FRAMESIZE-5)*$SZREG($sp)
+ $REG_L $s8,($FRAMESIZE-6)*$SZREG($sp)
+ $REG_L $s7,($FRAMESIZE-7)*$SZREG($sp)
+ $REG_L $s6,($FRAMESIZE-8)*$SZREG($sp)
+ $REG_L $s5,($FRAMESIZE-9)*$SZREG($sp)
+ $REG_L $s4,($FRAMESIZE-10)*$SZREG($sp)
+___
+$code.=<<___ if ($flavour =~ /nubi/i);
+ $REG_L $s3,($FRAMESIZE-11)*$SZREG($sp)
+ $REG_L $s2,($FRAMESIZE-12)*$SZREG($sp)
+ $REG_L $s1,($FRAMESIZE-13)*$SZREG($sp)
+ $REG_L $s0,($FRAMESIZE-14)*$SZREG($sp)
+ $REG_L $gp,($FRAMESIZE-15)*$SZREG($sp)
+___
+$code.=<<___;
+ jr $ra
+ $PTR_ADD $sp,$FRAMESIZE*$SZREG
.end sha1_block_data_order
+.rdata
+.asciiz "SHA1 for MIPS, CRYPTOGAMS by <appro\@openssl.org>"
___
print $code;
close STDOUT;
projects / openssl / commitdiff