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774 lines
16 KiB
774 lines
16 KiB
#!/usr/local/bin/perl |
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; |
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push(@INC,"${dir}","${dir}../../perlasm"); |
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require "x86asm.pl"; |
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&asm_init($ARGV[0],$0); |
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$sse2=0; |
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for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); } |
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&external_label("OPENSSL_ia32cap_P") if ($sse2); |
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&bn_mul_add_words("bn_mul_add_words"); |
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&bn_mul_words("bn_mul_words"); |
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&bn_sqr_words("bn_sqr_words"); |
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&bn_div_words("bn_div_words"); |
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&bn_add_words("bn_add_words"); |
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&bn_sub_words("bn_sub_words"); |
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&bn_sub_part_words("bn_sub_part_words"); |
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&asm_finish(); |
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sub bn_mul_add_words |
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{ |
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local($name)=@_; |
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&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); |
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$r="eax"; |
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$a="edx"; |
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$c="ecx"; |
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if ($sse2) { |
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&picmeup("eax","OPENSSL_ia32cap_P"); |
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&bt(&DWP(0,"eax"),26); |
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&jnc(&label("maw_non_sse2")); |
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&mov($r,&wparam(0)); |
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&mov($a,&wparam(1)); |
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&mov($c,&wparam(2)); |
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&movd("mm0",&wparam(3)); # mm0 = w |
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&pxor("mm1","mm1"); # mm1 = carry_in |
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&jmp(&label("maw_sse2_entry")); |
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&set_label("maw_sse2_unrolled",16); |
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&movd("mm3",&DWP(0,$r,"",0)); # mm3 = r[0] |
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&paddq("mm1","mm3"); # mm1 = carry_in + r[0] |
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&movd("mm2",&DWP(0,$a,"",0)); # mm2 = a[0] |
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&pmuludq("mm2","mm0"); # mm2 = w*a[0] |
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&movd("mm4",&DWP(4,$a,"",0)); # mm4 = a[1] |
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&pmuludq("mm4","mm0"); # mm4 = w*a[1] |
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&movd("mm6",&DWP(8,$a,"",0)); # mm6 = a[2] |
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&pmuludq("mm6","mm0"); # mm6 = w*a[2] |
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&movd("mm7",&DWP(12,$a,"",0)); # mm7 = a[3] |
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&pmuludq("mm7","mm0"); # mm7 = w*a[3] |
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&paddq("mm1","mm2"); # mm1 = carry_in + r[0] + w*a[0] |
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&movd("mm3",&DWP(4,$r,"",0)); # mm3 = r[1] |
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&paddq("mm3","mm4"); # mm3 = r[1] + w*a[1] |
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&movd("mm5",&DWP(8,$r,"",0)); # mm5 = r[2] |
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&paddq("mm5","mm6"); # mm5 = r[2] + w*a[2] |
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&movd("mm4",&DWP(12,$r,"",0)); # mm4 = r[3] |
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&paddq("mm7","mm4"); # mm7 = r[3] + w*a[3] |
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&movd(&DWP(0,$r,"",0),"mm1"); |
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&movd("mm2",&DWP(16,$a,"",0)); # mm2 = a[4] |
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&pmuludq("mm2","mm0"); # mm2 = w*a[4] |
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&psrlq("mm1",32); # mm1 = carry0 |
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&movd("mm4",&DWP(20,$a,"",0)); # mm4 = a[5] |
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&pmuludq("mm4","mm0"); # mm4 = w*a[5] |
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&paddq("mm1","mm3"); # mm1 = carry0 + r[1] + w*a[1] |
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&movd("mm6",&DWP(24,$a,"",0)); # mm6 = a[6] |
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&pmuludq("mm6","mm0"); # mm6 = w*a[6] |
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&movd(&DWP(4,$r,"",0),"mm1"); |
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&psrlq("mm1",32); # mm1 = carry1 |
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&movd("mm3",&DWP(28,$a,"",0)); # mm3 = a[7] |
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&add($a,32); |
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&pmuludq("mm3","mm0"); # mm3 = w*a[7] |
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&paddq("mm1","mm5"); # mm1 = carry1 + r[2] + w*a[2] |
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&movd("mm5",&DWP(16,$r,"",0)); # mm5 = r[4] |
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&paddq("mm2","mm5"); # mm2 = r[4] + w*a[4] |
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&movd(&DWP(8,$r,"",0),"mm1"); |
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&psrlq("mm1",32); # mm1 = carry2 |
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&paddq("mm1","mm7"); # mm1 = carry2 + r[3] + w*a[3] |
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&movd("mm5",&DWP(20,$r,"",0)); # mm5 = r[5] |
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&paddq("mm4","mm5"); # mm4 = r[5] + w*a[5] |
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&movd(&DWP(12,$r,"",0),"mm1"); |
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&psrlq("mm1",32); # mm1 = carry3 |
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&paddq("mm1","mm2"); # mm1 = carry3 + r[4] + w*a[4] |
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&movd("mm5",&DWP(24,$r,"",0)); # mm5 = r[6] |
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&paddq("mm6","mm5"); # mm6 = r[6] + w*a[6] |
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&movd(&DWP(16,$r,"",0),"mm1"); |
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&psrlq("mm1",32); # mm1 = carry4 |
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&paddq("mm1","mm4"); # mm1 = carry4 + r[5] + w*a[5] |
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&movd("mm5",&DWP(28,$r,"",0)); # mm5 = r[7] |
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&paddq("mm3","mm5"); # mm3 = r[7] + w*a[7] |
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&movd(&DWP(20,$r,"",0),"mm1"); |
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&psrlq("mm1",32); # mm1 = carry5 |
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&paddq("mm1","mm6"); # mm1 = carry5 + r[6] + w*a[6] |
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&movd(&DWP(24,$r,"",0),"mm1"); |
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&psrlq("mm1",32); # mm1 = carry6 |
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&paddq("mm1","mm3"); # mm1 = carry6 + r[7] + w*a[7] |
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&movd(&DWP(28,$r,"",0),"mm1"); |
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&lea($r,&DWP(32,$r)); |
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&psrlq("mm1",32); # mm1 = carry_out |
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&sub($c,8); |
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&jz(&label("maw_sse2_exit")); |
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&set_label("maw_sse2_entry"); |
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&test($c,0xfffffff8); |
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&jnz(&label("maw_sse2_unrolled")); |
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&set_label("maw_sse2_loop",4); |
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&movd("mm2",&DWP(0,$a)); # mm2 = a[i] |
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&movd("mm3",&DWP(0,$r)); # mm3 = r[i] |
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&pmuludq("mm2","mm0"); # a[i] *= w |
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&lea($a,&DWP(4,$a)); |
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&paddq("mm1","mm3"); # carry += r[i] |
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&paddq("mm1","mm2"); # carry += a[i]*w |
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&movd(&DWP(0,$r),"mm1"); # r[i] = carry_low |
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&sub($c,1); |
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&psrlq("mm1",32); # carry = carry_high |
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&lea($r,&DWP(4,$r)); |
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&jnz(&label("maw_sse2_loop")); |
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&set_label("maw_sse2_exit"); |
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&movd("eax","mm1"); # c = carry_out |
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&emms(); |
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&ret(); |
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&set_label("maw_non_sse2",16); |
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} |
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# function_begin prologue |
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&push("ebp"); |
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&push("ebx"); |
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&push("esi"); |
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&push("edi"); |
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&comment(""); |
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$Low="eax"; |
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$High="edx"; |
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$a="ebx"; |
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$w="ebp"; |
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$r="edi"; |
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$c="esi"; |
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&xor($c,$c); # clear carry |
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&mov($r,&wparam(0)); # |
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&mov("ecx",&wparam(2)); # |
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&mov($a,&wparam(1)); # |
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&and("ecx",0xfffffff8); # num / 8 |
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&mov($w,&wparam(3)); # |
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&push("ecx"); # Up the stack for a tmp variable |
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&jz(&label("maw_finish")); |
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&set_label("maw_loop",16); |
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for ($i=0; $i<32; $i+=4) |
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{ |
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&comment("Round $i"); |
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&mov("eax",&DWP($i,$a)); # *a |
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&mul($w); # *a * w |
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&add("eax",$c); # L(t)+= c |
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&adc("edx",0); # H(t)+=carry |
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&add("eax",&DWP($i,$r)); # L(t)+= *r |
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&adc("edx",0); # H(t)+=carry |
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&mov(&DWP($i,$r),"eax"); # *r= L(t); |
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&mov($c,"edx"); # c= H(t); |
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} |
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&comment(""); |
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&sub("ecx",8); |
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&lea($a,&DWP(32,$a)); |
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&lea($r,&DWP(32,$r)); |
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&jnz(&label("maw_loop")); |
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&set_label("maw_finish",0); |
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&mov("ecx",&wparam(2)); # get num |
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&and("ecx",7); |
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&jnz(&label("maw_finish2")); # helps branch prediction |
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&jmp(&label("maw_end")); |
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&set_label("maw_finish2",1); |
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for ($i=0; $i<7; $i++) |
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{ |
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&comment("Tail Round $i"); |
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&mov("eax",&DWP($i*4,$a)); # *a |
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&mul($w); # *a * w |
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&add("eax",$c); # L(t)+=c |
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&adc("edx",0); # H(t)+=carry |
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&add("eax",&DWP($i*4,$r)); # L(t)+= *r |
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&adc("edx",0); # H(t)+=carry |
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&dec("ecx") if ($i != 7-1); |
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&mov(&DWP($i*4,$r),"eax"); # *r= L(t); |
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&mov($c,"edx"); # c= H(t); |
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&jz(&label("maw_end")) if ($i != 7-1); |
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} |
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&set_label("maw_end",0); |
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&mov("eax",$c); |
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&pop("ecx"); # clear variable from |
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&function_end($name); |
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} |
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sub bn_mul_words |
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{ |
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local($name)=@_; |
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&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); |
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$r="eax"; |
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$a="edx"; |
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$c="ecx"; |
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if ($sse2) { |
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&picmeup("eax","OPENSSL_ia32cap_P"); |
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&bt(&DWP(0,"eax"),26); |
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&jnc(&label("mw_non_sse2")); |
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&mov($r,&wparam(0)); |
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&mov($a,&wparam(1)); |
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&mov($c,&wparam(2)); |
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&movd("mm0",&wparam(3)); # mm0 = w |
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&pxor("mm1","mm1"); # mm1 = carry = 0 |
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&set_label("mw_sse2_loop",16); |
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&movd("mm2",&DWP(0,$a)); # mm2 = a[i] |
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&pmuludq("mm2","mm0"); # a[i] *= w |
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&lea($a,&DWP(4,$a)); |
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&paddq("mm1","mm2"); # carry += a[i]*w |
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&movd(&DWP(0,$r),"mm1"); # r[i] = carry_low |
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&sub($c,1); |
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&psrlq("mm1",32); # carry = carry_high |
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&lea($r,&DWP(4,$r)); |
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&jnz(&label("mw_sse2_loop")); |
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&movd("eax","mm1"); # return carry |
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&emms(); |
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&ret(); |
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&set_label("mw_non_sse2",16); |
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} |
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# function_begin prologue |
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&push("ebp"); |
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&push("ebx"); |
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&push("esi"); |
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&push("edi"); |
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&comment(""); |
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$Low="eax"; |
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$High="edx"; |
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$a="ebx"; |
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$w="ecx"; |
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$r="edi"; |
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$c="esi"; |
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$num="ebp"; |
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&xor($c,$c); # clear carry |
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&mov($r,&wparam(0)); # |
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&mov($a,&wparam(1)); # |
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&mov($num,&wparam(2)); # |
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&mov($w,&wparam(3)); # |
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&and($num,0xfffffff8); # num / 8 |
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&jz(&label("mw_finish")); |
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&set_label("mw_loop",0); |
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for ($i=0; $i<32; $i+=4) |
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{ |
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&comment("Round $i"); |
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&mov("eax",&DWP($i,$a,"",0)); # *a |
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&mul($w); # *a * w |
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&add("eax",$c); # L(t)+=c |
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# XXX |
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&adc("edx",0); # H(t)+=carry |
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&mov(&DWP($i,$r,"",0),"eax"); # *r= L(t); |
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&mov($c,"edx"); # c= H(t); |
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} |
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&comment(""); |
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&add($a,32); |
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&add($r,32); |
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&sub($num,8); |
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&jz(&label("mw_finish")); |
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&jmp(&label("mw_loop")); |
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&set_label("mw_finish",0); |
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&mov($num,&wparam(2)); # get num |
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&and($num,7); |
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&jnz(&label("mw_finish2")); |
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&jmp(&label("mw_end")); |
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&set_label("mw_finish2",1); |
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for ($i=0; $i<7; $i++) |
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{ |
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&comment("Tail Round $i"); |
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&mov("eax",&DWP($i*4,$a,"",0));# *a |
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&mul($w); # *a * w |
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&add("eax",$c); # L(t)+=c |
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# XXX |
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&adc("edx",0); # H(t)+=carry |
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&mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t); |
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&mov($c,"edx"); # c= H(t); |
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&dec($num) if ($i != 7-1); |
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&jz(&label("mw_end")) if ($i != 7-1); |
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} |
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&set_label("mw_end",0); |
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&mov("eax",$c); |
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&function_end($name); |
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} |
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sub bn_sqr_words |
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{ |
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local($name)=@_; |
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&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":""); |
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$r="eax"; |
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$a="edx"; |
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$c="ecx"; |
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if ($sse2) { |
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&picmeup("eax","OPENSSL_ia32cap_P"); |
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&bt(&DWP(0,"eax"),26); |
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&jnc(&label("sqr_non_sse2")); |
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&mov($r,&wparam(0)); |
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&mov($a,&wparam(1)); |
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&mov($c,&wparam(2)); |
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&set_label("sqr_sse2_loop",16); |
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&movd("mm0",&DWP(0,$a)); # mm0 = a[i] |
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&pmuludq("mm0","mm0"); # a[i] *= a[i] |
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&lea($a,&DWP(4,$a)); # a++ |
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&movq(&QWP(0,$r),"mm0"); # r[i] = a[i]*a[i] |
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&sub($c,1); |
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&lea($r,&DWP(8,$r)); # r += 2 |
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&jnz(&label("sqr_sse2_loop")); |
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&emms(); |
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&ret(); |
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&set_label("sqr_non_sse2",16); |
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} |
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# function_begin prologue |
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&push("ebp"); |
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&push("ebx"); |
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&push("esi"); |
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&push("edi"); |
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&comment(""); |
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$r="esi"; |
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$a="edi"; |
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$num="ebx"; |
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&mov($r,&wparam(0)); # |
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&mov($a,&wparam(1)); # |
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&mov($num,&wparam(2)); # |
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&and($num,0xfffffff8); # num / 8 |
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&jz(&label("sw_finish")); |
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&set_label("sw_loop",0); |
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for ($i=0; $i<32; $i+=4) |
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{ |
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&comment("Round $i"); |
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&mov("eax",&DWP($i,$a,"",0)); # *a |
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# XXX |
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&mul("eax"); # *a * *a |
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&mov(&DWP($i*2,$r,"",0),"eax"); # |
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&mov(&DWP($i*2+4,$r,"",0),"edx");# |
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} |
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&comment(""); |
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&add($a,32); |
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&add($r,64); |
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&sub($num,8); |
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&jnz(&label("sw_loop")); |
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&set_label("sw_finish",0); |
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&mov($num,&wparam(2)); # get num |
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&and($num,7); |
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&jz(&label("sw_end")); |
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for ($i=0; $i<7; $i++) |
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{ |
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&comment("Tail Round $i"); |
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&mov("eax",&DWP($i*4,$a,"",0)); # *a |
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# XXX |
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&mul("eax"); # *a * *a |
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&mov(&DWP($i*8,$r,"",0),"eax"); # |
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&dec($num) if ($i != 7-1); |
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&mov(&DWP($i*8+4,$r,"",0),"edx"); |
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&jz(&label("sw_end")) if ($i != 7-1); |
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} |
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&set_label("sw_end",0); |
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&function_end($name); |
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} |
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sub bn_div_words |
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{ |
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local($name)=@_; |
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&function_begin_B($name,""); |
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&mov("edx",&wparam(0)); # |
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&mov("eax",&wparam(1)); # |
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&mov("ecx",&wparam(2)); # |
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&div("ecx"); |
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&ret(); |
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&function_end_B($name); |
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} |
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sub bn_add_words |
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{ |
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local($name)=@_; |
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&function_begin($name,""); |
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&comment(""); |
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$a="esi"; |
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$b="edi"; |
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$c="eax"; |
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$r="ebx"; |
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$tmp1="ecx"; |
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$tmp2="edx"; |
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$num="ebp"; |
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&mov($r,&wparam(0)); # get r |
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&mov($a,&wparam(1)); # get a |
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&mov($b,&wparam(2)); # get b |
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&mov($num,&wparam(3)); # get num |
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&xor($c,$c); # clear carry |
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&and($num,0xfffffff8); # num / 8 |
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&jz(&label("aw_finish")); |
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&set_label("aw_loop",0); |
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for ($i=0; $i<8; $i++) |
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{ |
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&comment("Round $i"); |
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&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
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&mov($tmp2,&DWP($i*4,$b,"",0)); # *b |
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&add($tmp1,$c); |
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&mov($c,0); |
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&adc($c,$c); |
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&add($tmp1,$tmp2); |
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&adc($c,0); |
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&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
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} |
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&comment(""); |
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&add($a,32); |
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&add($b,32); |
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&add($r,32); |
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&sub($num,8); |
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&jnz(&label("aw_loop")); |
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&set_label("aw_finish",0); |
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&mov($num,&wparam(3)); # get num |
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&and($num,7); |
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&jz(&label("aw_end")); |
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for ($i=0; $i<7; $i++) |
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{ |
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&comment("Tail Round $i"); |
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&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
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&mov($tmp2,&DWP($i*4,$b,"",0));# *b |
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&add($tmp1,$c); |
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&mov($c,0); |
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&adc($c,$c); |
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&add($tmp1,$tmp2); |
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&adc($c,0); |
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&dec($num) if ($i != 6); |
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&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
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&jz(&label("aw_end")) if ($i != 6); |
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} |
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&set_label("aw_end",0); |
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# &mov("eax",$c); # $c is "eax" |
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&function_end($name); |
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} |
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sub bn_sub_words |
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{ |
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local($name)=@_; |
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&function_begin($name,""); |
|
|
|
&comment(""); |
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$a="esi"; |
|
$b="edi"; |
|
$c="eax"; |
|
$r="ebx"; |
|
$tmp1="ecx"; |
|
$tmp2="edx"; |
|
$num="ebp"; |
|
|
|
&mov($r,&wparam(0)); # get r |
|
&mov($a,&wparam(1)); # get a |
|
&mov($b,&wparam(2)); # get b |
|
&mov($num,&wparam(3)); # get num |
|
&xor($c,$c); # clear carry |
|
&and($num,0xfffffff8); # num / 8 |
|
|
|
&jz(&label("aw_finish")); |
|
|
|
&set_label("aw_loop",0); |
|
for ($i=0; $i<8; $i++) |
|
{ |
|
&comment("Round $i"); |
|
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
|
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b |
|
&sub($tmp1,$c); |
|
&mov($c,0); |
|
&adc($c,$c); |
|
&sub($tmp1,$tmp2); |
|
&adc($c,0); |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
} |
|
|
|
&comment(""); |
|
&add($a,32); |
|
&add($b,32); |
|
&add($r,32); |
|
&sub($num,8); |
|
&jnz(&label("aw_loop")); |
|
|
|
&set_label("aw_finish",0); |
|
&mov($num,&wparam(3)); # get num |
|
&and($num,7); |
|
&jz(&label("aw_end")); |
|
|
|
for ($i=0; $i<7; $i++) |
|
{ |
|
&comment("Tail Round $i"); |
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
|
&mov($tmp2,&DWP($i*4,$b,"",0));# *b |
|
&sub($tmp1,$c); |
|
&mov($c,0); |
|
&adc($c,$c); |
|
&sub($tmp1,$tmp2); |
|
&adc($c,0); |
|
&dec($num) if ($i != 6); |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
&jz(&label("aw_end")) if ($i != 6); |
|
} |
|
&set_label("aw_end",0); |
|
|
|
# &mov("eax",$c); # $c is "eax" |
|
|
|
&function_end($name); |
|
} |
|
|
|
sub bn_sub_part_words |
|
{ |
|
local($name)=@_; |
|
|
|
&function_begin($name,""); |
|
|
|
&comment(""); |
|
$a="esi"; |
|
$b="edi"; |
|
$c="eax"; |
|
$r="ebx"; |
|
$tmp1="ecx"; |
|
$tmp2="edx"; |
|
$num="ebp"; |
|
|
|
&mov($r,&wparam(0)); # get r |
|
&mov($a,&wparam(1)); # get a |
|
&mov($b,&wparam(2)); # get b |
|
&mov($num,&wparam(3)); # get num |
|
&xor($c,$c); # clear carry |
|
&and($num,0xfffffff8); # num / 8 |
|
|
|
&jz(&label("aw_finish")); |
|
|
|
&set_label("aw_loop",0); |
|
for ($i=0; $i<8; $i++) |
|
{ |
|
&comment("Round $i"); |
|
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
|
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b |
|
&sub($tmp1,$c); |
|
&mov($c,0); |
|
&adc($c,$c); |
|
&sub($tmp1,$tmp2); |
|
&adc($c,0); |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
} |
|
|
|
&comment(""); |
|
&add($a,32); |
|
&add($b,32); |
|
&add($r,32); |
|
&sub($num,8); |
|
&jnz(&label("aw_loop")); |
|
|
|
&set_label("aw_finish",0); |
|
&mov($num,&wparam(3)); # get num |
|
&and($num,7); |
|
&jz(&label("aw_end")); |
|
|
|
for ($i=0; $i<7; $i++) |
|
{ |
|
&comment("Tail Round $i"); |
|
&mov($tmp1,&DWP(0,$a,"",0)); # *a |
|
&mov($tmp2,&DWP(0,$b,"",0));# *b |
|
&sub($tmp1,$c); |
|
&mov($c,0); |
|
&adc($c,$c); |
|
&sub($tmp1,$tmp2); |
|
&adc($c,0); |
|
&mov(&DWP(0,$r,"",0),$tmp1); # *r |
|
&add($a, 4); |
|
&add($b, 4); |
|
&add($r, 4); |
|
&dec($num) if ($i != 6); |
|
&jz(&label("aw_end")) if ($i != 6); |
|
} |
|
&set_label("aw_end",0); |
|
|
|
&cmp(&wparam(4),0); |
|
&je(&label("pw_end")); |
|
|
|
&mov($num,&wparam(4)); # get dl |
|
&cmp($num,0); |
|
&je(&label("pw_end")); |
|
&jge(&label("pw_pos")); |
|
|
|
&comment("pw_neg"); |
|
&mov($tmp2,0); |
|
&sub($tmp2,$num); |
|
&mov($num,$tmp2); |
|
&and($num,0xfffffff8); # num / 8 |
|
&jz(&label("pw_neg_finish")); |
|
|
|
&set_label("pw_neg_loop",0); |
|
for ($i=0; $i<8; $i++) |
|
{ |
|
&comment("dl<0 Round $i"); |
|
|
|
&mov($tmp1,0); |
|
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b |
|
&sub($tmp1,$c); |
|
&mov($c,0); |
|
&adc($c,$c); |
|
&sub($tmp1,$tmp2); |
|
&adc($c,0); |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
} |
|
|
|
&comment(""); |
|
&add($b,32); |
|
&add($r,32); |
|
&sub($num,8); |
|
&jnz(&label("pw_neg_loop")); |
|
|
|
&set_label("pw_neg_finish",0); |
|
&mov($tmp2,&wparam(4)); # get dl |
|
&mov($num,0); |
|
&sub($num,$tmp2); |
|
&and($num,7); |
|
&jz(&label("pw_end")); |
|
|
|
for ($i=0; $i<7; $i++) |
|
{ |
|
&comment("dl<0 Tail Round $i"); |
|
&mov($tmp1,0); |
|
&mov($tmp2,&DWP($i*4,$b,"",0));# *b |
|
&sub($tmp1,$c); |
|
&mov($c,0); |
|
&adc($c,$c); |
|
&sub($tmp1,$tmp2); |
|
&adc($c,0); |
|
&dec($num) if ($i != 6); |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
&jz(&label("pw_end")) if ($i != 6); |
|
} |
|
|
|
&jmp(&label("pw_end")); |
|
|
|
&set_label("pw_pos",0); |
|
|
|
&and($num,0xfffffff8); # num / 8 |
|
&jz(&label("pw_pos_finish")); |
|
|
|
&set_label("pw_pos_loop",0); |
|
|
|
for ($i=0; $i<8; $i++) |
|
{ |
|
&comment("dl>0 Round $i"); |
|
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
|
&sub($tmp1,$c); |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
&jnc(&label("pw_nc".$i)); |
|
} |
|
|
|
&comment(""); |
|
&add($a,32); |
|
&add($r,32); |
|
&sub($num,8); |
|
&jnz(&label("pw_pos_loop")); |
|
|
|
&set_label("pw_pos_finish",0); |
|
&mov($num,&wparam(4)); # get dl |
|
&and($num,7); |
|
&jz(&label("pw_end")); |
|
|
|
for ($i=0; $i<7; $i++) |
|
{ |
|
&comment("dl>0 Tail Round $i"); |
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
|
&sub($tmp1,$c); |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
&jnc(&label("pw_tail_nc".$i)); |
|
&dec($num) if ($i != 6); |
|
&jz(&label("pw_end")) if ($i != 6); |
|
} |
|
&mov($c,1); |
|
&jmp(&label("pw_end")); |
|
|
|
&set_label("pw_nc_loop",0); |
|
for ($i=0; $i<8; $i++) |
|
{ |
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
&set_label("pw_nc".$i,0); |
|
} |
|
|
|
&comment(""); |
|
&add($a,32); |
|
&add($r,32); |
|
&sub($num,8); |
|
&jnz(&label("pw_nc_loop")); |
|
|
|
&mov($num,&wparam(4)); # get dl |
|
&and($num,7); |
|
&jz(&label("pw_nc_end")); |
|
|
|
for ($i=0; $i<7; $i++) |
|
{ |
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a |
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r |
|
&set_label("pw_tail_nc".$i,0); |
|
&dec($num) if ($i != 6); |
|
&jz(&label("pw_nc_end")) if ($i != 6); |
|
} |
|
|
|
&set_label("pw_nc_end",0); |
|
&mov($c,0); |
|
|
|
&set_label("pw_end",0); |
|
|
|
# &mov("eax",$c); # $c is "eax" |
|
|
|
&function_end($name); |
|
} |
|
|
|
|