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Diffstat (limited to 'crypto/sha/asm/sha1-mips.pl')
| -rw-r--r-- | crypto/sha/asm/sha1-mips.pl | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/crypto/sha/asm/sha1-mips.pl b/crypto/sha/asm/sha1-mips.pl new file mode 100644 index 0000000000..a2f7aaddc1 --- /dev/null +++ b/crypto/sha/asm/sha1-mips.pl @@ -0,0 +1,281 @@ +#!/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/. +# ==================================================================== + +# SHA1 block procedure for MIPS. + +# Performance improvement is 30% on unaligned input. The "secret" is +# to deploy lwl/lwr pair to load unaligned input. One could have +# vectorized Xupdate on MIPSIII/IV, but the goal was to code MIPS32- +# compatible subroutine. There is room for minor optimization on +# little-endian platforms... +# +# 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/); + $big_endian=0 if (/\-DL_ENDIAN/); } +if (!defined($big_endian)) + { $big_endian=(unpack('L',pack('N',1))==1); } + +# offsets of the Most and Least Significant Bytes +$MSB=$big_endian?0:3; +$LSB=3&~$MSB; + +@X=( "\$8", "\$9", "\$10", "\$11", "\$12", "\$13", "\$14", "\$15", + "\$16", "\$17", "\$18", "\$19", "\$20", "\$21", "\$22", "\$23"); +$ctx="\$4"; # a0 +$inp="\$5"; # a1 +$num="\$6"; # a2 +$A="\$1"; +$B="\$2"; +$C="\$3"; +$D="\$7"; +$E="\$24"; @V=($A,$B,$C,$D,$E); +$t0="\$25"; # jp,t9 +$t1="\$28"; # gp +$t2="\$30"; # fp,s8 +$K="\$31"; # ra + +$FRAMESIZE=16; + +sub BODY_00_14 { +my ($i,$a,$b,$c,$d,$e)=@_; +my $j=$i+1; +$code.=<<___ if (!$big_endian); + srl $t0,@X[$i],24 # byte swap($i) + srl $t1,@X[$i],8 + andi $t2,@X[$i],0xFF00 + sll @X[$i],@X[$i],24 + andi $t1,0xFF00 + sll $t2,$t2,8 + or @X[$i],$t0 + or @X[$i],$t1 + or @X[$i],$t2 +___ +$code.=<<___; + lwl @X[$j],$j*4+$MSB($inp) + sll $t0,$a,5 # $i + addu $e,$K + lwr @X[$j],$j*4+$LSB($inp) + srl $t1,$a,27 + addu $e,$t0 + xor $t0,$c,$d + addu $e,$t1 + sll $t2,$b,30 + and $t0,$b + srl $b,$b,2 + xor $t0,$d + addu $e,@X[$i] + or $b,$t2 + addu $e,$t0 +___ +} + +sub BODY_15_19 { +my ($i,$a,$b,$c,$d,$e)=@_; +my $j=$i+1; + +$code.=<<___ if (!$big_endian && $i==15); + srl $t0,@X[$i],24 # byte swap($i) + srl $t1,@X[$i],8 + andi $t2,@X[$i],0xFF00 + sll @X[$i],@X[$i],24 + andi $t1,0xFF00 + sll $t2,$t2,8 + or @X[$i],$t0 + or @X[$i],$t1 + or @X[$i],$t2 +___ +$code.=<<___; + xor @X[$j%16],@X[($j+2)%16] + sll $t0,$a,5 # $i + addu $e,$K + srl $t1,$a,27 + addu $e,$t0 + xor @X[$j%16],@X[($j+8)%16] + xor $t0,$c,$d + addu $e,$t1 + xor @X[$j%16],@X[($j+13)%16] + sll $t2,$b,30 + and $t0,$b + srl $t1,@X[$j%16],31 + addu @X[$j%16],@X[$j%16] + srl $b,$b,2 + xor $t0,$d + or @X[$j%16],$t1 + addu $e,@X[$i%16] + or $b,$t2 + addu $e,$t0 +___ +} + +sub BODY_20_39 { +my ($i,$a,$b,$c,$d,$e)=@_; +my $j=$i+1; +$code.=<<___ if ($i<79); + xor @X[$j%16],@X[($j+2)%16] + sll $t0,$a,5 # $i + addu $e,$K + srl $t1,$a,27 + addu $e,$t0 + xor @X[$j%16],@X[($j+8)%16] + xor $t0,$c,$d + addu $e,$t1 + xor @X[$j%16],@X[($j+13)%16] + sll $t2,$b,30 + xor $t0,$b + srl $t1,@X[$j%16],31 + addu @X[$j%16],@X[$j%16] + srl $b,$b,2 + addu $e,@X[$i%16] + or @X[$j%16],$t1 + or $b,$t2 + addu $e,$t0 +___ +$code.=<<___ if ($i==79); + lw @X[0],0($ctx) + sll $t0,$a,5 # $i + addu $e,$K + lw @X[1],4($ctx) + srl $t1,$a,27 + addu $e,$t0 + lw @X[2],8($ctx) + xor $t0,$c,$d + addu $e,$t1 + lw @X[3],12($ctx) + sll $t2,$b,30 + xor $t0,$b + lw @X[4],16($ctx) + srl $b,$b,2 + addu $e,@X[$i%16] + or $b,$t2 + addu $e,$t0 +___ +} + +sub BODY_40_59 { +my ($i,$a,$b,$c,$d,$e)=@_; +my $j=$i+1; +$code.=<<___ if ($i<79); + xor @X[$j%16],@X[($j+2)%16] + sll $t0,$a,5 # $i + addu $e,$K + srl $t1,$a,27 + addu $e,$t0 + xor @X[$j%16],@X[($j+8)%16] + and $t0,$c,$d + addu $e,$t1 + xor @X[$j%16],@X[($j+13)%16] + sll $t2,$b,30 + addu $e,$t0 + srl $t1,@X[$j%16],31 + xor $t0,$c,$d + addu @X[$j%16],@X[$j%16] + and $t0,$b + srl $b,$b,2 + or @X[$j%16],$t1 + addu $e,@X[$i%16] + or $b,$t2 + addu $e,$t0 +___ +} + +$code=<<___; +#include <asm.h> +#include <regdef.h> + +.text + +.set noat +.set noreorder +.align 5 +.globl sha1_block_data_order +.ent sha1_block_data_order +sha1_block_data_order: + .frame sp,$FRAMESIZE*SZREG,zero + .mask 0xd0ff0000,-$FRAMESIZE*SZREG + .set noreorder + PTR_SUB sp,$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) + + lw $A,0($ctx) + lw $B,4($ctx) + lw $C,8($ctx) + lw $D,12($ctx) + b .Loop + lw $E,16($ctx) +.align 4 +.Loop: + .set reorder + lwl @X[0],$MSB($inp) + lui $K,0x5a82 + lwr @X[0],$LSB($inp) + ori $K,0x7999 # K_00_19 +___ +for ($i=0;$i<15;$i++) { &BODY_00_14($i,@V); unshift(@V,pop(@V)); } +for (;$i<20;$i++) { &BODY_15_19($i,@V); unshift(@V,pop(@V)); } +$code.=<<___; + lui $K,0x6ed9 + ori $K,0xeba1 # K_20_39 +___ +for (;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } +$code.=<<___; + lui $K,0x8f1b + ori $K,0xbcdc # K_40_59 +___ +for (;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); } +$code.=<<___; + lui $K,0xca62 + ori $K,0xc1d6 # K_60_79 +___ +for (;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); } +$code.=<<___; + addu $A,$X[0] + addu $B,$X[1] + sw $A,0($ctx) + addu $C,$X[2] + 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 $inp,64 + + .set noreorder + REG_L \$31,($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 +.end sha1_block_data_order +___ +print $code; +close STDOUT; |