+++ /dev/null
-#!/usr/local/bin/perl
-# x86 assember
-
-sub mul_add_c
- {
- local($a,$ai,$b,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
-
- # pos == -1 if eax and edx are pre-loaded, 0 to load from next
- # words, and 1 if load return value
-
- &comment("mul a[$ai]*b[$bi]");
-
- # "eax" and "edx" will always be pre-loaded.
- # &mov("eax",&DWP($ai*4,$a,"",0)) ;
- # &mov("edx",&DWP($bi*4,$b,"",0));
-
- &mul("edx");
- &add($c0,"eax");
- &mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # laod next a
- &mov("eax",&wparam(0)) if $pos > 0; # load r[]
- ###
- &adc($c1,"edx");
- &mov("edx",&DWP(($nb)*4,$b,"",0)) if $pos == 0; # laod next b
- &mov("edx",&DWP(($nb)*4,$b,"",0)) if $pos == 1; # laod next b
- ###
- &adc($c2,0);
- # is pos > 1, it means it is the last loop
- &mov(&DWP($i*4,"eax","",0),$c0) if $pos > 0; # save r[];
- &mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # laod next a
- }
-
-sub sqr_add_c
- {
- local($r,$a,$ai,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
-
- # pos == -1 if eax and edx are pre-loaded, 0 to load from next
- # words, and 1 if load return value
-
- &comment("sqr a[$ai]*a[$bi]");
-
- # "eax" and "edx" will always be pre-loaded.
- # &mov("eax",&DWP($ai*4,$a,"",0)) ;
- # &mov("edx",&DWP($bi*4,$b,"",0));
-
- if ($ai == $bi)
- { &mul("eax");}
- else
- { &mul("edx");}
- &add($c0,"eax");
- &mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # load next a
- ###
- &adc($c1,"edx");
- &mov("edx",&DWP(($nb)*4,$a,"",0)) if ($pos == 1) && ($na != $nb);
- ###
- &adc($c2,0);
- # is pos > 1, it means it is the last loop
- &mov(&DWP($i*4,$r,"",0),$c0) if $pos > 0; # save r[];
- &mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # load next b
- }
-
-sub sqr_add_c2
- {
- local($r,$a,$ai,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
-
- # pos == -1 if eax and edx are pre-loaded, 0 to load from next
- # words, and 1 if load return value
-
- &comment("sqr a[$ai]*a[$bi]");
-
- # "eax" and "edx" will always be pre-loaded.
- # &mov("eax",&DWP($ai*4,$a,"",0)) ;
- # &mov("edx",&DWP($bi*4,$a,"",0));
-
- if ($ai == $bi)
- { &mul("eax");}
- else
- { &mul("edx");}
- &add("eax","eax");
- ###
- &adc("edx","edx");
- ###
- &adc($c2,0);
- &add($c0,"eax");
- &adc($c1,"edx");
- &mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # load next a
- &mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # load next b
- &adc($c2,0);
- &mov(&DWP($i*4,$r,"",0),$c0) if $pos > 0; # save r[];
- &mov("edx",&DWP(($nb)*4,$a,"",0)) if ($pos <= 1) && ($na != $nb);
- ###
- }
-
-sub bn_mul_comba
- {
- local($name,$num)=@_;
- local($a,$b,$c0,$c1,$c2);
- local($i,$as,$ae,$bs,$be,$ai,$bi);
- local($tot,$end);
-
- &function_begin_B($name,"");
-
- $c0="ebx";
- $c1="ecx";
- $c2="ebp";
- $a="esi";
- $b="edi";
-
- $as=0;
- $ae=0;
- $bs=0;
- $be=0;
- $tot=$num+$num-1;
-
- &push("esi");
- &mov($a,&wparam(1));
- &push("edi");
- &mov($b,&wparam(2));
- &push("ebp");
- &push("ebx");
-
- &xor($c0,$c0);
- &mov("eax",&DWP(0,$a,"",0)); # load the first word
- &xor($c1,$c1);
- &mov("edx",&DWP(0,$b,"",0)); # load the first second
-
- for ($i=0; $i<$tot; $i++)
- {
- $ai=$as;
- $bi=$bs;
- $end=$be+1;
-
- &comment("################## Calculate word $i");
-
- for ($j=$bs; $j<$end; $j++)
- {
- &xor($c2,$c2) if ($j == $bs);
- if (($j+1) == $end)
- {
- $v=1;
- $v=2 if (($i+1) == $tot);
- }
- else
- { $v=0; }
- if (($j+1) != $end)
- {
- $na=($ai-1);
- $nb=($bi+1);
- }
- else
- {
- $na=$as+($i < ($num-1));
- $nb=$bs+($i >= ($num-1));
- }
-#printf STDERR "[$ai,$bi] -> [$na,$nb]\n";
- &mul_add_c($a,$ai,$b,$bi,$c0,$c1,$c2,$v,$i,$na,$nb);
- if ($v)
- {
- &comment("saved r[$i]");
- # &mov("eax",&wparam(0));
- # &mov(&DWP($i*4,"eax","",0),$c0);
- ($c0,$c1,$c2)=($c1,$c2,$c0);
- }
- $ai--;
- $bi++;
- }
- $as++ if ($i < ($num-1));
- $ae++ if ($i >= ($num-1));
-
- $bs++ if ($i >= ($num-1));
- $be++ if ($i < ($num-1));
- }
- &comment("save r[$i]");
- # &mov("eax",&wparam(0));
- &mov(&DWP($i*4,"eax","",0),$c0);
-
- &pop("ebx");
- &pop("ebp");
- &pop("edi");
- &pop("esi");
- &ret();
- &function_end_B($name);
- }
-
-sub bn_sqr_comba
- {
- local($name,$num)=@_;
- local($r,$a,$c0,$c1,$c2)=@_;
- local($i,$as,$ae,$bs,$be,$ai,$bi);
- local($b,$tot,$end,$half);
-
- &function_begin_B($name,"");
-
- $c0="ebx";
- $c1="ecx";
- $c2="ebp";
- $a="esi";
- $r="edi";
-
- &push("esi");
- &push("edi");
- &push("ebp");
- &push("ebx");
- &mov($r,&wparam(0));
- &mov($a,&wparam(1));
- &xor($c0,$c0);
- &xor($c1,$c1);
- &mov("eax",&DWP(0,$a,"",0)); # load the first word
-
- $as=0;
- $ae=0;
- $bs=0;
- $be=0;
- $tot=$num+$num-1;
-
- for ($i=0; $i<$tot; $i++)
- {
- $ai=$as;
- $bi=$bs;
- $end=$be+1;
-
- &comment("############### Calculate word $i");
- for ($j=$bs; $j<$end; $j++)
- {
- &xor($c2,$c2) if ($j == $bs);
- if (($ai-1) < ($bi+1))
- {
- $v=1;
- $v=2 if ($i+1) == $tot;
- }
- else
- { $v=0; }
- if (!$v)
- {
- $na=$ai-1;
- $nb=$bi+1;
- }
- else
- {
- $na=$as+($i < ($num-1));
- $nb=$bs+($i >= ($num-1));
- }
- if ($ai == $bi)
- {
- &sqr_add_c($r,$a,$ai,$bi,
- $c0,$c1,$c2,$v,$i,$na,$nb);
- }
- else
- {
- &sqr_add_c2($r,$a,$ai,$bi,
- $c0,$c1,$c2,$v,$i,$na,$nb);
- }
- if ($v)
- {
- &comment("saved r[$i]");
- #&mov(&DWP($i*4,$r,"",0),$c0);
- ($c0,$c1,$c2)=($c1,$c2,$c0);
- last;
- }
- $ai--;
- $bi++;
- }
- $as++ if ($i < ($num-1));
- $ae++ if ($i >= ($num-1));
-
- $bs++ if ($i >= ($num-1));
- $be++ if ($i < ($num-1));
- }
- &mov(&DWP($i*4,$r,"",0),$c0);
- &pop("ebx");
- &pop("ebp");
- &pop("edi");
- &pop("esi");
- &ret();
- &function_end_B($name);
- }
-
-1;
projects / cassiopeia.git / blobdiff