diff options
Diffstat (limited to 'openssl/crypto/sha/asm/sha256-586.pl')
| -rw-r--r-- | openssl/crypto/sha/asm/sha256-586.pl | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/openssl/crypto/sha/asm/sha256-586.pl b/openssl/crypto/sha/asm/sha256-586.pl new file mode 100644 index 000000000..ecc8b69c7 --- /dev/null +++ b/openssl/crypto/sha/asm/sha256-586.pl @@ -0,0 +1,251 @@ +#!/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/. +# ==================================================================== +# +# SHA256 block transform for x86. September 2007. +# +# Performance in clock cycles per processed byte (less is better): +# +# Pentium PIII P4 AMD K8 Core2 +# gcc 46 36 41 27 26 +# icc 57 33 38 25 23 +# x86 asm 40 30 35 20 20 +# x86_64 asm(*) - - 21 15.8 16.5 +# +# (*) x86_64 assembler performance is presented for reference +# purposes. +# +# Performance improvement over compiler generated code varies from +# 10% to 40% [see above]. Not very impressive on some µ-archs, but +# it's 5 times smaller and optimizies amount of writes. + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +push(@INC,"${dir}","${dir}../../perlasm"); +require "x86asm.pl"; + +&asm_init($ARGV[0],"sha512-586.pl",$ARGV[$#ARGV] eq "386"); + +$A="eax"; +$E="edx"; +$T="ebx"; +$Aoff=&DWP(0,"esp"); +$Boff=&DWP(4,"esp"); +$Coff=&DWP(8,"esp"); +$Doff=&DWP(12,"esp"); +$Eoff=&DWP(16,"esp"); +$Foff=&DWP(20,"esp"); +$Goff=&DWP(24,"esp"); +$Hoff=&DWP(28,"esp"); +$Xoff=&DWP(32,"esp"); +$K256="ebp"; + +sub BODY_00_15() { + my $in_16_63=shift; + + &mov ("ecx",$E); + &add ($T,&DWP(4*(8+15+16-9),"esp")) if ($in_16_63); # T += X[-7] + &ror ("ecx",6); + &mov ("edi",$E); + &ror ("edi",11); + &mov ("esi",$Foff); + &xor ("ecx","edi"); + &ror ("edi",25-11); + &mov (&DWP(4*(8+15),"esp"),$T) if ($in_16_63); # save X[0] + &xor ("ecx","edi"); # Sigma1(e) + &mov ("edi",$Goff); + &add ($T,"ecx"); # T += Sigma1(e) + &mov ($Eoff,$E); # modulo-scheduled + + &xor ("esi","edi"); + &mov ("ecx",$A); + &and ("esi",$E); + &mov ($E,$Doff); # e becomes d, which is e in next iteration + &xor ("esi","edi"); # Ch(e,f,g) + &mov ("edi",$A); + &add ($T,"esi"); # T += Ch(e,f,g) + + &ror ("ecx",2); + &add ($T,$Hoff); # T += h + &ror ("edi",13); + &mov ("esi",$Boff); + &xor ("ecx","edi"); + &ror ("edi",22-13); + &add ($E,$T); # d += T + &xor ("ecx","edi"); # Sigma0(a) + &mov ("edi",$Coff); + + &add ($T,"ecx"); # T += Sigma0(a) + &mov ($Aoff,$A); # modulo-scheduled + + &mov ("ecx",$A); + &sub ("esp",4); + &or ($A,"esi"); # a becomes h, which is a in next iteration + &and ("ecx","esi"); + &and ($A,"edi"); + &mov ("esi",&DWP(0,$K256)); + &or ($A,"ecx"); # h=Maj(a,b,c) + + &add ($K256,4); + &add ($A,$T); # h += T + &mov ($T,&DWP(4*(8+15+16-1),"esp")) if ($in_16_63); # preload T + &add ($E,"esi"); # d += K256[i] + &add ($A,"esi"); # h += K256[i] +} + +&function_begin("sha256_block_data_order"); + &mov ("esi",wparam(0)); # ctx + &mov ("edi",wparam(1)); # inp + &mov ("eax",wparam(2)); # num + &mov ("ebx","esp"); # saved sp + + &call (&label("pic_point")); # make it PIC! +&set_label("pic_point"); + &blindpop($K256); + &lea ($K256,&DWP(&label("K256")."-".&label("pic_point"),$K256)); + + &sub ("esp",16); + &and ("esp",-64); + + &shl ("eax",6); + &add ("eax","edi"); + &mov (&DWP(0,"esp"),"esi"); # ctx + &mov (&DWP(4,"esp"),"edi"); # inp + &mov (&DWP(8,"esp"),"eax"); # inp+num*128 + &mov (&DWP(12,"esp"),"ebx"); # saved sp + +&set_label("loop",16); + # copy input block to stack reversing byte and dword order + for($i=0;$i<4;$i++) { + &mov ("eax",&DWP($i*16+0,"edi")); + &mov ("ebx",&DWP($i*16+4,"edi")); + &mov ("ecx",&DWP($i*16+8,"edi")); + &mov ("edx",&DWP($i*16+12,"edi")); + &bswap ("eax"); + &bswap ("ebx"); + &bswap ("ecx"); + &bswap ("edx"); + &push ("eax"); + &push ("ebx"); + &push ("ecx"); + &push ("edx"); + } + &add ("edi",64); + &sub ("esp",4*8); # place for A,B,C,D,E,F,G,H + &mov (&DWP(4*(8+16)+4,"esp"),"edi"); + + # copy ctx->h[0-7] to A,B,C,D,E,F,G,H on stack + &mov ($A,&DWP(0,"esi")); + &mov ("ebx",&DWP(4,"esi")); + &mov ("ecx",&DWP(8,"esi")); + &mov ("edi",&DWP(12,"esi")); + # &mov ($Aoff,$A); + &mov ($Boff,"ebx"); + &mov ($Coff,"ecx"); + &mov ($Doff,"edi"); + &mov ($E,&DWP(16,"esi")); + &mov ("ebx",&DWP(20,"esi")); + &mov ("ecx",&DWP(24,"esi")); + &mov ("edi",&DWP(28,"esi")); + # &mov ($Eoff,$E); + &mov ($Foff,"ebx"); + &mov ($Goff,"ecx"); + &mov ($Hoff,"edi"); + +&set_label("00_15",16); + &mov ($T,&DWP(4*(8+15),"esp")); + + &BODY_00_15(); + + &cmp ("esi",0xc19bf174); + &jne (&label("00_15")); + + &mov ($T,&DWP(4*(8+15+16-1),"esp")); # preloaded in BODY_00_15(1) +&set_label("16_63",16); + &mov ("esi",$T); + &mov ("ecx",&DWP(4*(8+15+16-14),"esp")); + &shr ($T,3); + &ror ("esi",7); + &xor ($T,"esi"); + &ror ("esi",18-7); + &mov ("edi","ecx"); + &xor ($T,"esi"); # T = sigma0(X[-15]) + + &shr ("ecx",10); + &mov ("esi",&DWP(4*(8+15+16),"esp")); + &ror ("edi",17); + &xor ("ecx","edi"); + &ror ("edi",19-17); + &add ($T,"esi"); # T += X[-16] + &xor ("edi","ecx") # sigma1(X[-2]) + + &add ($T,"edi"); # T += sigma1(X[-2]) + # &add ($T,&DWP(4*(8+15+16-9),"esp")); # T += X[-7], moved to BODY_00_15(1) + # &mov (&DWP(4*(8+15),"esp"),$T); # save X[0] + + &BODY_00_15(1); + + &cmp ("esi",0xc67178f2); + &jne (&label("16_63")); + + &mov ("esi",&DWP(4*(8+16+64)+0,"esp"));#ctx + # &mov ($A,$Aoff); + &mov ("ebx",$Boff); + &mov ("ecx",$Coff); + &mov ("edi",$Doff); + &add ($A,&DWP(0,"esi")); + &add ("ebx",&DWP(4,"esi")); + &add ("ecx",&DWP(8,"esi")); + &add ("edi",&DWP(12,"esi")); + &mov (&DWP(0,"esi"),$A); + &mov (&DWP(4,"esi"),"ebx"); + &mov (&DWP(8,"esi"),"ecx"); + &mov (&DWP(12,"esi"),"edi"); + # &mov ($E,$Eoff); + &mov ("eax",$Foff); + &mov ("ebx",$Goff); + &mov ("ecx",$Hoff); + &mov ("edi",&DWP(4*(8+16+64)+4,"esp"));#inp + &add ($E,&DWP(16,"esi")); + &add ("eax",&DWP(20,"esi")); + &add ("ebx",&DWP(24,"esi")); + &add ("ecx",&DWP(28,"esi")); + &mov (&DWP(16,"esi"),$E); + &mov (&DWP(20,"esi"),"eax"); + &mov (&DWP(24,"esi"),"ebx"); + &mov (&DWP(28,"esi"),"ecx"); + + &add ("esp",4*(8+16+64)); # destroy frame + &sub ($K256,4*64); # rewind K + + &cmp ("edi",&DWP(8,"esp")); # are we done yet? + &jb (&label("loop")); + + &mov ("esp",&DWP(12,"esp")); # restore sp +&function_end_A(); + +&set_label("K256",64); # Yes! I keep it in the code segment! + &data_word(0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5); + &data_word(0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5); + &data_word(0xd807aa98,0x12835b01,0x243185be,0x550c7dc3); + &data_word(0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174); + &data_word(0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc); + &data_word(0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da); + &data_word(0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7); + &data_word(0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967); + &data_word(0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13); + &data_word(0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85); + &data_word(0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3); + &data_word(0xd192e819,0xd6990624,0xf40e3585,0x106aa070); + &data_word(0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5); + &data_word(0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3); + &data_word(0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208); + &data_word(0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2); +&function_end_B("sha256_block_data_order"); +&asciz("SHA256 block transform for x86, CRYPTOGAMS by <appro\@openssl.org>"); + +&asm_finish(); |