sub ::asciz
{ my @str=unpack("C*",shift);
push @str,0;
while ($ &data_byte(@str[0..15]);
foreach (0..15) { shift @str; }
}
&data_byte(@str) if (@str);
}
push(@INC,"perlasm","../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],$0);
$sse2=0;
for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
&external_label("OPENSSL_ia32cap_P") if ($sse2);
&function_begin("bn_mul_mont");
$i="edx";
$j="ecx";
$ap="esi"; $tp="esi"; $rp="edi"; $bp="edi"; $np="ebp";
$num="ebx";
$_num=&DWP(4*0,"esp"); $_rp=&DWP(4*1,"esp");
$_ap=&DWP(4*2,"esp");
$_bp=&DWP(4*3,"esp");
$_np=&DWP(4*4,"esp");
$_n0=&DWP(4*5,"esp"); $_n0q=&QWP(4*5,"esp");
$_sp=&DWP(4*6,"esp");
$_bpend=&DWP(4*7,"esp");
$frame=32;
&xor ("eax","eax");
&mov ("edi",&wparam(5)); &cmp ("edi",4);
&jl (&label("just_leave"));
&lea ("esi",&wparam(0)); &lea ("edx",&wparam(1)); &mov ("ebp","esp"); &add ("edi",2); &neg ("edi");
&lea ("esp",&DWP(-$frame,"esp","edi",4)); &neg ("edi");
&mov ("eax","esp");
&sub ("eax","edx");
&and ("eax",2047);
&sub ("esp","eax");
&xor ("edx","esp");
&and ("edx",2048);
&xor ("edx",2048);
&sub ("esp","edx");
&and ("esp",-64);
&mov ("eax",&DWP(0*4,"esi")); &mov ("ebx",&DWP(1*4,"esi")); &mov ("ecx",&DWP(2*4,"esi")); &mov ("edx",&DWP(3*4,"esi")); &mov ("esi",&DWP(4*4,"esi"));
&mov ("esi",&DWP(0,"esi")); &mov ($_rp,"eax"); &mov ($_ap,"ebx");
&mov ($_bp,"ecx");
&mov ($_np,"edx");
&mov ($_n0,"esi");
&lea ($num,&DWP(-3,"edi")); &mov ($_sp,"ebp");
if($sse2) {
$acc0="mm0"; $acc1="mm1";
$car0="mm2";
$car1="mm3";
$mul0="mm4";
$mul1="mm5";
$temp="mm6";
$mask="mm7";
&picmeup("eax","OPENSSL_ia32cap_P");
&bt (&DWP(0,"eax"),26);
&jnc (&label("non_sse2"));
&mov ("eax",-1);
&movd ($mask,"eax");
&mov ($ap,$_ap); &mov ($bp,$_bp);
&mov ($np,$_np);
&xor ($i,$i); &xor ($j,$j);
&movd ($mul0,&DWP(0,$bp)); &movd ($mul1,&DWP(0,$ap)); &movd ($car1,&DWP(0,$np));
&pmuludq($mul1,$mul0); &movq ($car0,$mul1);
&movq ($acc0,$mul1); &pand ($acc0,$mask);
&pmuludq($mul1,$_n0q);
&pmuludq($car1,$mul1); &paddq ($car1,$acc0);
&movd ($acc1,&DWP(4,$np)); &movd ($acc0,&DWP(4,$ap));
&psrlq ($car0,32);
&psrlq ($car1,32);
&inc ($j); &set_label("1st",16);
&pmuludq($acc0,$mul0); &pmuludq($acc1,$mul1); &paddq ($car0,$acc0); &paddq ($car1,$acc1);
&movq ($acc0,$car0);
&pand ($acc0,$mask);
&movd ($acc1,&DWP(4,$np,$j,4)); &paddq ($car1,$acc0); &movd ($acc0,&DWP(4,$ap,$j,4)); &psrlq ($car0,32);
&movd (&DWP($frame-4,"esp",$j,4),$car1); &psrlq ($car1,32);
&lea ($j,&DWP(1,$j));
&cmp ($j,$num);
&jl (&label("1st"));
&pmuludq($acc0,$mul0); &pmuludq($acc1,$mul1); &paddq ($car0,$acc0); &paddq ($car1,$acc1);
&movq ($acc0,$car0);
&pand ($acc0,$mask);
&paddq ($car1,$acc0); &movd (&DWP($frame-4,"esp",$j,4),$car1);
&psrlq ($car0,32);
&psrlq ($car1,32);
&paddq ($car1,$car0);
&movq (&QWP($frame,"esp",$num,4),$car1);
&inc ($i); &set_label("outer");
&xor ($j,$j);
&movd ($mul0,&DWP(0,$bp,$i,4)); &movd ($mul1,&DWP(0,$ap)); &movd ($temp,&DWP($frame,"esp")); &movd ($car1,&DWP(0,$np)); &pmuludq($mul1,$mul0);
&paddq ($mul1,$temp); &movq ($acc0,$mul1);
&movq ($car0,$mul1);
&pand ($acc0,$mask);
&pmuludq($mul1,$_n0q);
&pmuludq($car1,$mul1);
&paddq ($car1,$acc0);
&movd ($temp,&DWP($frame+4,"esp")); &movd ($acc1,&DWP(4,$np)); &movd ($acc0,&DWP(4,$ap));
&psrlq ($car0,32);
&psrlq ($car1,32);
&paddq ($car0,$temp);
&inc ($j); &dec ($num);
&set_label("inner");
&pmuludq($acc0,$mul0); &pmuludq($acc1,$mul1); &paddq ($car0,$acc0); &paddq ($car1,$acc1);
&movq ($acc0,$car0);
&movd ($temp,&DWP($frame+4,"esp",$j,4)); &pand ($acc0,$mask);
&movd ($acc1,&DWP(4,$np,$j,4)); &paddq ($car1,$acc0); &movd ($acc0,&DWP(4,$ap,$j,4)); &psrlq ($car0,32);
&movd (&DWP($frame-4,"esp",$j,4),$car1); &psrlq ($car1,32);
&paddq ($car0,$temp);
&dec ($num);
&lea ($j,&DWP(1,$j)); &jnz (&label("inner"));
&mov ($num,$j);
&pmuludq($acc0,$mul0); &pmuludq($acc1,$mul1); &paddq ($car0,$acc0); &paddq ($car1,$acc1);
&movq ($acc0,$car0);
&pand ($acc0,$mask);
&paddq ($car1,$acc0); &movd (&DWP($frame-4,"esp",$j,4),$car1); &psrlq ($car0,32);
&psrlq ($car1,32);
&movd ($temp,&DWP($frame+4,"esp",$num,4)); &paddq ($car1,$car0);
&paddq ($car1,$temp);
&movq (&QWP($frame,"esp",$num,4),$car1);
&lea ($i,&DWP(1,$i)); &cmp ($i,$num);
&jle (&label("outer"));
&emms (); &jmp (&label("common_tail"));
&set_label("non_sse2",16);
}
if (0) {
&mov ("esp",$_sp);
&xor ("eax","eax"); &jmp (&label("just_leave"));
} else {
$inp="esi"; $word="edi";
$carry="ebp";
&mov ($inp,$_ap);
&lea ($carry,&DWP(1,$num));
&mov ($word,$_bp);
&xor ($j,$j); &mov ("edx",$inp);
&and ($carry,1); &sub ("edx",$word); &lea ("eax",&DWP(4,$word,$num,4)); &or ($carry,"edx");
&mov ($word,&DWP(0,$word)); &jz (&label("bn_sqr_mont"));
&mov ($_bpend,"eax");
&mov ("eax",&DWP(0,$inp));
&xor ("edx","edx");
&set_label("mull",16);
&mov ($carry,"edx");
&mul ($word); &add ($carry,"eax");
&lea ($j,&DWP(1,$j));
&adc ("edx",0);
&mov ("eax",&DWP(0,$inp,$j,4)); &cmp ($j,$num);
&mov (&DWP($frame-4,"esp",$j,4),$carry); &jl (&label("mull"));
&mov ($carry,"edx");
&mul ($word); &mov ($word,$_n0);
&add ("eax",$carry);
&mov ($inp,$_np);
&adc ("edx",0);
&imul ($word,&DWP($frame,"esp"));
&mov (&DWP($frame,"esp",$num,4),"eax"); &xor ($j,$j);
&mov (&DWP($frame+4,"esp",$num,4),"edx"); &mov (&DWP($frame+8,"esp",$num,4),$j);
&mov ("eax",&DWP(0,$inp)); &mul ($word); &add ("eax",&DWP($frame,"esp")); &mov ("eax",&DWP(4,$inp)); &adc ("edx",0);
&inc ($j);
&jmp (&label("2ndmadd"));
&set_label("1stmadd",16);
&mov ($carry,"edx");
&mul ($word); &add ($carry,&DWP($frame,"esp",$j,4)); &lea ($j,&DWP(1,$j));
&adc ("edx",0);
&add ($carry,"eax");
&mov ("eax",&DWP(0,$inp,$j,4)); &adc ("edx",0);
&cmp ($j,$num);
&mov (&DWP($frame-4,"esp",$j,4),$carry); &jl (&label("1stmadd"));
&mov ($carry,"edx");
&mul ($word); &add ("eax",&DWP($frame,"esp",$num,4)); &mov ($word,$_n0);
&adc ("edx",0);
&mov ($inp,$_np);
&add ($carry,"eax");
&adc ("edx",0);
&imul ($word,&DWP($frame,"esp"));
&xor ($j,$j);
&add ("edx",&DWP($frame+4,"esp",$num,4)); &mov (&DWP($frame,"esp",$num,4),$carry); &adc ($j,0);
&mov ("eax",&DWP(0,$inp)); &mov (&DWP($frame+4,"esp",$num,4),"edx"); &mov (&DWP($frame+8,"esp",$num,4),$j);
&mul ($word); &add ("eax",&DWP($frame,"esp")); &mov ("eax",&DWP(4,$inp)); &adc ("edx",0);
&mov ($j,1);
&set_label("2ndmadd",16);
&mov ($carry,"edx");
&mul ($word); &add ($carry,&DWP($frame,"esp",$j,4)); &lea ($j,&DWP(1,$j));
&adc ("edx",0);
&add ($carry,"eax");
&mov ("eax",&DWP(0,$inp,$j,4)); &adc ("edx",0);
&cmp ($j,$num);
&mov (&DWP($frame-8,"esp",$j,4),$carry); &jl (&label("2ndmadd"));
&mov ($carry,"edx");
&mul ($word); &add ($carry,&DWP($frame,"esp",$num,4)); &adc ("edx",0);
&add ($carry,"eax");
&adc ("edx",0);
&mov (&DWP($frame-4,"esp",$num,4),$carry);
&xor ("eax","eax");
&mov ($j,$_bp); &add ("edx",&DWP($frame+4,"esp",$num,4)); &adc ("eax",&DWP($frame+8,"esp",$num,4)); &lea ($j,&DWP(4,$j));
&mov (&DWP($frame,"esp",$num,4),"edx"); &cmp ($j,$_bpend);
&mov (&DWP($frame+4,"esp",$num,4),"eax"); &je (&label("common_tail"));
&mov ($word,&DWP(0,$j)); &mov ($inp,$_ap);
&mov ($_bp,$j); &xor ($j,$j);
&xor ("edx","edx");
&mov ("eax",&DWP(0,$inp));
&jmp (&label("1stmadd"));
&set_label("bn_sqr_mont",16);
$sbit=$num;
&mov ($_num,$num);
&mov ($_bp,$j);
&mov ("eax",$word); &mul ($word); &mov (&DWP($frame,"esp"),"eax"); &mov ($sbit,"edx");
&shr ("edx",1);
&and ($sbit,1);
&inc ($j);
&set_label("sqr",16);
&mov ("eax",&DWP(0,$inp,$j,4)); &mov ($carry,"edx");
&mul ($word); &add ("eax",$carry);
&lea ($j,&DWP(1,$j));
&adc ("edx",0);
&lea ($carry,&DWP(0,$sbit,"eax",2));
&shr ("eax",31);
&cmp ($j,$_num);
&mov ($sbit,"eax");
&mov (&DWP($frame-4,"esp",$j,4),$carry); &jl (&label("sqr"));
&mov ("eax",&DWP(0,$inp,$j,4)); &mov ($carry,"edx");
&mul ($word); &add ("eax",$carry);
&mov ($word,$_n0);
&adc ("edx",0);
&mov ($inp,$_np);
&lea ($carry,&DWP(0,$sbit,"eax",2));
&imul ($word,&DWP($frame,"esp")); &shr ("eax",31);
&mov (&DWP($frame,"esp",$j,4),$carry);
&lea ($carry,&DWP(0,"eax","edx",2));
&mov ("eax",&DWP(0,$inp)); &shr ("edx",31);
&mov (&DWP($frame+4,"esp",$j,4),$carry); &mov (&DWP($frame+8,"esp",$j,4),"edx");
&mul ($word); &add ("eax",&DWP($frame,"esp")); &mov ($num,$j);
&adc ("edx",0);
&mov ("eax",&DWP(4,$inp)); &mov ($j,1);
&set_label("3rdmadd",16);
&mov ($carry,"edx");
&mul ($word); &add ($carry,&DWP($frame,"esp",$j,4)); &adc ("edx",0);
&add ($carry,"eax");
&mov ("eax",&DWP(4,$inp,$j,4)); &adc ("edx",0);
&mov (&DWP($frame-4,"esp",$j,4),$carry);
&mov ($carry,"edx");
&mul ($word); &add ($carry,&DWP($frame+4,"esp",$j,4)); &lea ($j,&DWP(2,$j));
&adc ("edx",0);
&add ($carry,"eax");
&mov ("eax",&DWP(0,$inp,$j,4)); &adc ("edx",0);
&cmp ($j,$num);
&mov (&DWP($frame-8,"esp",$j,4),$carry); &jl (&label("3rdmadd"));
&mov ($carry,"edx");
&mul ($word); &add ($carry,&DWP($frame,"esp",$num,4)); &adc ("edx",0);
&add ($carry,"eax");
&adc ("edx",0);
&mov (&DWP($frame-4,"esp",$num,4),$carry);
&mov ($j,$_bp); &xor ("eax","eax");
&mov ($inp,$_ap);
&add ("edx",&DWP($frame+4,"esp",$num,4)); &adc ("eax",&DWP($frame+8,"esp",$num,4)); &mov (&DWP($frame,"esp",$num,4),"edx"); &cmp ($j,$num);
&mov (&DWP($frame+4,"esp",$num,4),"eax"); &je (&label("common_tail"));
&mov ($word,&DWP(4,$inp,$j,4)); &lea ($j,&DWP(1,$j));
&mov ("eax",$word);
&mov ($_bp,$j); &mul ($word); &add ("eax",&DWP($frame,"esp",$j,4)); &adc ("edx",0);
&mov (&DWP($frame,"esp",$j,4),"eax"); &xor ($carry,$carry);
&cmp ($j,$num);
&lea ($j,&DWP(1,$j));
&je (&label("sqrlast"));
&mov ($sbit,"edx"); &shr ("edx",1);
&and ($sbit,1);
&set_label("sqradd",16);
&mov ("eax",&DWP(0,$inp,$j,4)); &mov ($carry,"edx");
&mul ($word); &add ("eax",$carry);
&lea ($carry,&DWP(0,"eax","eax"));
&adc ("edx",0);
&shr ("eax",31);
&add ($carry,&DWP($frame,"esp",$j,4)); &lea ($j,&DWP(1,$j));
&adc ("eax",0);
&add ($carry,$sbit);
&adc ("eax",0);
&cmp ($j,$_num);
&mov (&DWP($frame-4,"esp",$j,4),$carry); &mov ($sbit,"eax");
&jle (&label("sqradd"));
&mov ($carry,"edx");
&lea ("edx",&DWP(0,$sbit,"edx",2));
&shr ($carry,31);
&set_label("sqrlast");
&mov ($word,$_n0);
&mov ($inp,$_np);
&imul ($word,&DWP($frame,"esp"));
&add ("edx",&DWP($frame,"esp",$j,4)); &mov ("eax",&DWP(0,$inp)); &adc ($carry,0);
&mov (&DWP($frame,"esp",$j,4),"edx"); &mov (&DWP($frame+4,"esp",$j,4),$carry);
&mul ($word); &add ("eax",&DWP($frame,"esp")); &lea ($num,&DWP(-1,$j));
&adc ("edx",0);
&mov ($j,1);
&mov ("eax",&DWP(4,$inp));
&jmp (&label("3rdmadd"));
}
&set_label("common_tail",16);
&mov ($np,$_np); &mov ($rp,$_rp); &lea ($tp,&DWP($frame,"esp"));
&mov ("eax",&DWP(0,$tp)); &mov ($j,$num); &xor ($i,$i);
&set_label("sub",16);
&sbb ("eax",&DWP(0,$np,$i,4));
&mov (&DWP(0,$rp,$i,4),"eax"); &dec ($j); &mov ("eax",&DWP(4,$tp,$i,4)); &lea ($i,&DWP(1,$i)); &jge (&label("sub"));
&sbb ("eax",0); &and ($tp,"eax");
¬ ("eax");
&mov ($np,$rp);
&and ($np,"eax");
&or ($tp,$np);
&set_label("copy",16); &mov ("eax",&DWP(0,$tp,$num,4));
&mov (&DWP(0,$rp,$num,4),"eax"); &mov (&DWP($frame,"esp",$num,4),$j); &dec ($num);
&jge (&label("copy"));
&mov ("esp",$_sp); &mov ("eax",1);
&set_label("just_leave");
&function_end("bn_mul_mont");
&asciz("Montgomery Multiplication for x86, CRYPTOGAMS by <appro\@openssl.org>");
&asm_finish();