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60 lines
1.0 KiB
60 lines
1.0 KiB
#!/usr/local/bin/perl |
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# x86 assember |
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sub bn_sqr_words |
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{ |
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local($name)=@_; |
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&function_begin($name,""); |
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&comment(""); |
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$r="esi"; |
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$a="edi"; |
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$num="ebx"; |
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&mov($r,&wparam(0)); # |
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&mov($a,&wparam(1)); # |
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&mov($num,&wparam(2)); # |
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&and($num,0xfffffff8); # num / 8 |
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&jz(&label("sw_finish")); |
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&set_label("sw_loop",0); |
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for ($i=0; $i<32; $i+=4) |
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{ |
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&comment("Round $i"); |
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&mov("eax",&DWP($i,$a,"",0)); # *a |
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# XXX |
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&mul("eax"); # *a * *a |
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&mov(&DWP($i*2,$r,"",0),"eax"); # |
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&mov(&DWP($i*2+4,$r,"",0),"edx");# |
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} |
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&comment(""); |
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&add($a,32); |
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&add($r,64); |
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&sub($num,8); |
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&jnz(&label("sw_loop")); |
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&set_label("sw_finish",0); |
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&mov($num,&wparam(2)); # get num |
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&and($num,7); |
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&jz(&label("sw_end")); |
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for ($i=0; $i<7; $i++) |
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{ |
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&comment("Tail Round $i"); |
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&mov("eax",&DWP($i*4,$a,"",0)); # *a |
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# XXX |
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&mul("eax"); # *a * *a |
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&mov(&DWP($i*8,$r,"",0),"eax"); # |
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&dec($num) if ($i != 7-1); |
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&mov(&DWP($i*8+4,$r,"",0),"edx"); |
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&jz(&label("sw_end")) if ($i != 7-1); |
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} |
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&set_label("sw_end",0); |
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&function_end($name); |
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} |
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1;
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