124 lines
2.8 KiB
Perl
124 lines
2.8 KiB
Perl
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#!/usr/local/bin/perl
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# alpha assember
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sub bn_mul_add_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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&ld(($a0)=&NR(1),&QWPw(0,$ap));
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$a=<<'EOF';
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##########################################################
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&set_label("loop");
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&ld(($r0)=&NR(1),&QWPw(0,$rp));
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&ld(($a1)=&NR(1),&QWPw(1,$ap));
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&muh($a0,$word,($h0)=&NR(1));
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&ld(($r1)=&NR(1),&QWPw(1,$rp));
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&ld(($a2)=&NR(1),&QWPw(2,$ap));
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###
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&mul($a0,$word,($l0)=&NR(1)); &FR($a0);
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&ld(($r2)=&NR(1),&QWPw(2,$rp));
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&muh($a1,$word,($h1)=&NR(1));
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&ld(($a3)=&NR(1),&QWPw(3,$ap));
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&mul($a1,$word,($l1)=&NR(1)); &FR($a1);
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&ld(($r3)=&NR(1),&QWPw(3,$rp));
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&add($r0,$l0,$r0);
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&add($r1,$l1,$r1);
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&cmpult($r0,$l0,($t0)=&NR(1)); &FR($l0);
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&cmpult($r1,$l1,($t1)=&NR(1)); &FR($l1);
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&muh($a2,$word,($h2)=&NR(1));
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&add($r0,$cc,$r0);
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&add($h0,$t0,$h0); &FR($t0);
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&cmpult($r0,$cc,$cc);
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&add($h1,$t1,$h1); &FR($t1);
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&add($h0,$cc,$cc); &FR($h0);
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&mul($a2,$word,($l2)=&NR(1)); &FR($a2);
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&add($r1,$cc,$r1);
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&cmpult($r1,$cc,$cc);
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&add($r2,$l2,$r2);
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&add($h1,$cc,$cc); &FR($h1);
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&cmpult($r2,$l2,($t2)=&NR(1)); &FR($l2);
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&muh($a3,$word,($h3)=&NR(1));
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&add($r2,$cc,$r2);
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&st($r0,&QWPw(0,$rp)); &FR($r0);
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&add($h2,$t2,$h2); &FR($t2);
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&st($r1,&QWPw(1,$rp)); &FR($r1);
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&cmpult($r2,$cc,$cc);
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&mul($a3,$word,($l3)=&NR(1)); &FR($a3);
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&add($h2,$cc,$cc); &FR($h2);
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&st($r2,&QWPw(2,$rp)); &FR($r2);
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&sub($count,4,$count); # count-=4
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&add($rp,4*$QWS,$rp); # count+=4
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&add($r3,$l3,$r3);
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&add($ap,4*$QWS,$ap); # count+=4
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&cmpult($r3,$l3,($t3)=&NR(1)); &FR($l3);
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&add($r3,$cc,$r3);
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&add($h3,$t3,$h3); &FR($t3);
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&cmpult($r3,$cc,$cc);
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&st($r3,&QWPw(-1,$rp)); &FR($r3);
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&add($h3,$cc,$cc); &FR($h3);
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###
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&blt($count,&label("finish"));
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&ld(($a0)=&NR(1),&QWPw(0,$ap));
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&br(&label("loop"));
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EOF
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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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&ld(($r0)=&NR(1),&QWPw(0,$rp)); # get b
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###
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###
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&muh($a0,$word,($h0)=&NR(1)); &FR($a0);
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### wait 8
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&mul($a0,$word,($l0)=&NR(1)); &FR($a0);
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&add($rp,$QWS,$rp);
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&add($ap,$QWS,$ap);
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&sub($count,1,$count);
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### wait 3 until l0 is available
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&add($r0,$l0,$r0);
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###
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&cmpult($r0,$l0,($t0)=&NR(1)); &FR($l0);
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&add($r0,$cc,$r0);
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&add($h0,$t0,$h0); &FR($t0);
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&cmpult($r0,$cc,$cc);
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&add($h0,$cc,$cc); &FR($h0);
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&st($r0,&QWPw(-1,$rp)); &FR($r0);
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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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