diff options
Diffstat (limited to 'app/openssl/crypto/bn/asm/mips-mont.pl')
| -rw-r--r-- | app/openssl/crypto/bn/asm/mips-mont.pl | 426 |
1 files changed, 0 insertions, 426 deletions
diff --git a/app/openssl/crypto/bn/asm/mips-mont.pl b/app/openssl/crypto/bn/asm/mips-mont.pl deleted file mode 100644 index caae04ed..00000000 --- a/app/openssl/crypto/bn/asm/mips-mont.pl +++ /dev/null @@ -1,426 +0,0 @@ -#!/usr/bin/env perl -# -# ==================================================================== -# Written by Andy Polyakov <appro@openssl.org> 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, at least not on -# in-order-execution cores. While 512-bit RSA sign operations can be -# 65% faster in 64-bit mode, 1024-bit ones are only 15% faster, and -# 4096-bit ones are up to 15% slower. In 32-bit mode it varies from -# 16% improvement for 512-bit RSA sign to -33% for 4096-bit RSA -# verify:-( All comparisons are against bn_mul_mont-free assembler. -# The module might be of interest to embedded system developers, as -# the code is smaller than 1KB, yet offers >3x improvement on MIPS64 -# and 75-30% [less for longer keys] on MIPS32 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 - bnez $at,1f - li $t0,0 - slt $at,$num,17 # on in-order CPU - bnez $at,bn_mul_mont_internal - nop -1: 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 - - .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; |