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61 lines
1.0 KiB
Raku
61 lines
1.0 KiB
Raku
#!/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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