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105 lines
2.4 KiB
Perl
105 lines
2.4 KiB
Perl
#!/usr/local/bin/perl
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# alpha assember
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sub bn_mul_words
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{
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local($name)=@_;
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local($cc,$a,$b,$r,$couny);
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&init_pool(4);
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($cc)=GR("r0");
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$rp=&wparam(0);
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$ap=&wparam(1);
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$count=&wparam(2);
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$word=&wparam(3);
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&function_begin($name,"");
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&comment("");
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&sub($count,4,$count);
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&mov("zero",$cc);
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###
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&blt($count,&label("finish"));
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($a0)=&NR(1); &ld($a0,&QWPw(0,$ap));
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&set_label("loop");
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($a1)=&NR(1); &ld($a1,&QWPw(1,$ap));
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($a2)=&NR(1); &ld($a2,&QWPw(2,$ap));
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&muh($a0,$word,($h0)=&NR(1)); &FR($a0);
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($a3)=&NR(1); &ld($a3,&QWPw(3,$ap));
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### wait 8
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&mul($a0,$word,($l0)=&NR(1)); &FR($a0);
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### wait 8
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&muh($a1,$word,($h1)=&NR(1)); &FR($a1);
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&add($l0,$cc,$l0); ### wait 8
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&mul($a1,$word,($l1)=&NR(1)); &FR($a1);
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&cmpult($l0,$cc,$cc); ### wait 8
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&muh($a2,$word,($h2)=&NR(1)); &FR($a2);
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&add($h0,$cc,$cc); &FR($h0); ### wait 8
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&mul($a2,$word,($l2)=&NR(1)); &FR($a2);
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&add($l1,$cc,$l1); ### wait 8
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&st($l0,&QWPw(0,$rp)); &FR($l0);
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&cmpult($l1,$cc,$cc); ### wait 8
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&muh($a3,$word,($h3)=&NR(1)); &FR($a3);
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&add($h1,$cc,$cc); &FR($h1);
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&mul($a3,$word,($l3)=&NR(1)); &FR($a3);
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&add($l2,$cc,$l2);
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&st($l1,&QWPw(1,$rp)); &FR($l1);
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&cmpult($l2,$cc,$cc);
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&add($h2,$cc,$cc); &FR($h2);
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&sub($count,4,$count); # count-=4
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&st($l2,&QWPw(2,$rp)); &FR($l2);
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&add($l3,$cc,$l3);
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&cmpult($l3,$cc,$cc);
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&add($bp,4*$QWS,$bp); # count+=4
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&add($h3,$cc,$cc); &FR($h3);
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&add($ap,4*$QWS,$ap); # count+=4
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&st($l3,&QWPw(3,$rp)); &FR($l3);
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&add($rp,4*$QWS,$rp); # count+=4
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###
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&blt($count,&label("finish"));
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($a0)=&NR(1); &ld($a0,&QWPw(0,$ap));
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&br(&label("finish"));
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##################################################
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##################################################
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# Do the last 0..3 words
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&set_label("last_loop");
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&ld(($a0)=&NR(1),&QWPw(0,$ap)); # get a
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###
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###
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###
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&muh($a0,$word,($h0)=&NR(1));
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### Wait 8 for next mul issue
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&mul($a0,$word,($l0)=&NR(1)); &FR($a0)
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&add($ap,$QWS,$ap);
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### Loose 12 until result is available
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&add($rp,$QWS,$rp);
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&sub($count,1,$count);
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&add($l0,$cc,$l0);
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###
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&st($l0,&QWPw(-1,$rp)); &FR($l0);
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&cmpult($l0,$cc,$cc);
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&add($h0,$cc,$cc); &FR($h0);
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&bgt($count,&label("last_loop"));
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&function_end_A($name);
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######################################################
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&set_label("finish");
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&add($count,4,$count);
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&bgt($count,&label("last_loop"));
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&set_label("end");
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&function_end($name);
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&fin_pool;
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}
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1;
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