mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-04 23:45:14 +00:00
78 lines
1.4 KiB
Perl
78 lines
1.4 KiB
Perl
|
#!/usr/local/bin/perl
|
||
|
|
# x86 assember
|
||
|
|
|
||
|
|
sub bn_mul_words
|
||
|
|
{
|
||
|
|
local($name)=@_;
|
||
|
|
|
||
|
|
&function_begin($name,"");
|
||
|
|
|
||
|
|
&comment("");
|
||
|
|
$Low="eax";
|
||
|
|
$High="edx";
|
||
|
|
$a="ebx";
|
||
|
|
$w="ecx";
|
||
|
|
$r="edi";
|
||
|
|
$c="esi";
|
||
|
|
$num="ebp";
|
||
|
|
|
||
|
|
&xor($c,$c); # clear carry
|
||
|
|
&mov($r,&wparam(0)); #
|
||
|
|
&mov($a,&wparam(1)); #
|
||
|
|
&mov($num,&wparam(2)); #
|
||
|
|
&mov($w,&wparam(3)); #
|
||
|
|
|
||
|
|
&and($num,0xfffffff8); # num / 8
|
||
|
|
&jz(&label("mw_finish"));
|
||
|
|
|
||
|
|
&set_label("mw_loop",0);
|
||
|
|
for ($i=0; $i<32; $i+=4)
|
||
|
|
{
|
||
|
|
&comment("Round $i");
|
||
|
|
|
||
|
|
&mov("eax",&DWP($i,$a,"",0)); # *a
|
||
|
|
&mul($w); # *a * w
|
||
|
|
&add("eax",$c); # L(t)+=c
|
||
|
|
# XXX
|
||
|
|
|
||
|
|
&adc("edx",0); # H(t)+=carry
|
||
|
|
&mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
|
||
|
|
|
||
|
|
&mov($c,"edx"); # c= H(t);
|
||
|
|
}
|
||
|
|
|
||
|
|
&comment("");
|
||
|
|
&add($a,32);
|
||
|
|
&add($r,32);
|
||
|
|
&sub($num,8);
|
||
|
|
&jz(&label("mw_finish"));
|
||
|
|
&jmp(&label("mw_loop"));
|
||
|
|
|
||
|
|
&set_label("mw_finish",0);
|
||
|
|
&mov($num,&wparam(2)); # get num
|
||
|
|
&and($num,7);
|
||
|
|
&jnz(&label("mw_finish2"));
|
||
|
|
&jmp(&label("mw_end"));
|
||
|
|
|
||
|
|
&set_label("mw_finish2",1);
|
||
|
|
for ($i=0; $i<7; $i++)
|
||
|
|
{
|
||
|
|
&comment("Tail Round $i");
|
||
|
|
&mov("eax",&DWP($i*4,$a,"",0));# *a
|
||
|
|
&mul($w); # *a * w
|
||
|
|
&add("eax",$c); # L(t)+=c
|
||
|
|
# XXX
|
||
|
|
&adc("edx",0); # H(t)+=carry
|
||
|
|
&mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t);
|
||
|
|
&mov($c,"edx"); # c= H(t);
|
||
|
|
&dec($num) if ($i != 7-1);
|
||
|
|
&jz(&label("mw_end")) if ($i != 7-1);
|
||
|
|
}
|
||
|
|
&set_label("mw_end",0);
|
||
|
|
&mov("eax",$c);
|
||
|
|
|
||
|
|
&function_end($name);
|
||
|
|
}
|
||
|
|
|
||
|
|
1;
|