mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-18 14:07:30 +00:00
775 lines
16 KiB
Raku
775 lines
16 KiB
Raku
#!/usr/local/bin/perl
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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push(@INC,"${dir}","${dir}../../perlasm");
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require "x86asm.pl";
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&asm_init($ARGV[0],$0);
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$sse2=0;
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for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
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&external_label("OPENSSL_ia32cap_P") if ($sse2);
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&bn_mul_add_words("bn_mul_add_words");
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&bn_mul_words("bn_mul_words");
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&bn_sqr_words("bn_sqr_words");
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&bn_div_words("bn_div_words");
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&bn_add_words("bn_add_words");
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&bn_sub_words("bn_sub_words");
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&bn_sub_part_words("bn_sub_part_words");
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&asm_finish();
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sub bn_mul_add_words
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{
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local($name)=@_;
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&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
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$r="eax";
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$a="edx";
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$c="ecx";
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if ($sse2) {
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&picmeup("eax","OPENSSL_ia32cap_P");
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&bt(&DWP(0,"eax"),26);
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&jnc(&label("maw_non_sse2"));
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&mov($r,&wparam(0));
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&mov($a,&wparam(1));
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&mov($c,&wparam(2));
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&movd("mm0",&wparam(3)); # mm0 = w
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&pxor("mm1","mm1"); # mm1 = carry_in
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&jmp(&label("maw_sse2_entry"));
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&set_label("maw_sse2_unrolled",16);
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&movd("mm3",&DWP(0,$r,"",0)); # mm3 = r[0]
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&paddq("mm1","mm3"); # mm1 = carry_in + r[0]
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&movd("mm2",&DWP(0,$a,"",0)); # mm2 = a[0]
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&pmuludq("mm2","mm0"); # mm2 = w*a[0]
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&movd("mm4",&DWP(4,$a,"",0)); # mm4 = a[1]
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&pmuludq("mm4","mm0"); # mm4 = w*a[1]
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&movd("mm6",&DWP(8,$a,"",0)); # mm6 = a[2]
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&pmuludq("mm6","mm0"); # mm6 = w*a[2]
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&movd("mm7",&DWP(12,$a,"",0)); # mm7 = a[3]
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&pmuludq("mm7","mm0"); # mm7 = w*a[3]
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&paddq("mm1","mm2"); # mm1 = carry_in + r[0] + w*a[0]
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&movd("mm3",&DWP(4,$r,"",0)); # mm3 = r[1]
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&paddq("mm3","mm4"); # mm3 = r[1] + w*a[1]
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&movd("mm5",&DWP(8,$r,"",0)); # mm5 = r[2]
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&paddq("mm5","mm6"); # mm5 = r[2] + w*a[2]
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&movd("mm4",&DWP(12,$r,"",0)); # mm4 = r[3]
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&paddq("mm7","mm4"); # mm7 = r[3] + w*a[3]
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&movd(&DWP(0,$r,"",0),"mm1");
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&movd("mm2",&DWP(16,$a,"",0)); # mm2 = a[4]
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&pmuludq("mm2","mm0"); # mm2 = w*a[4]
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&psrlq("mm1",32); # mm1 = carry0
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&movd("mm4",&DWP(20,$a,"",0)); # mm4 = a[5]
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&pmuludq("mm4","mm0"); # mm4 = w*a[5]
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&paddq("mm1","mm3"); # mm1 = carry0 + r[1] + w*a[1]
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&movd("mm6",&DWP(24,$a,"",0)); # mm6 = a[6]
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&pmuludq("mm6","mm0"); # mm6 = w*a[6]
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&movd(&DWP(4,$r,"",0),"mm1");
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&psrlq("mm1",32); # mm1 = carry1
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&movd("mm3",&DWP(28,$a,"",0)); # mm3 = a[7]
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&add($a,32);
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&pmuludq("mm3","mm0"); # mm3 = w*a[7]
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&paddq("mm1","mm5"); # mm1 = carry1 + r[2] + w*a[2]
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&movd("mm5",&DWP(16,$r,"",0)); # mm5 = r[4]
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&paddq("mm2","mm5"); # mm2 = r[4] + w*a[4]
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&movd(&DWP(8,$r,"",0),"mm1");
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&psrlq("mm1",32); # mm1 = carry2
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&paddq("mm1","mm7"); # mm1 = carry2 + r[3] + w*a[3]
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&movd("mm5",&DWP(20,$r,"",0)); # mm5 = r[5]
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&paddq("mm4","mm5"); # mm4 = r[5] + w*a[5]
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&movd(&DWP(12,$r,"",0),"mm1");
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&psrlq("mm1",32); # mm1 = carry3
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&paddq("mm1","mm2"); # mm1 = carry3 + r[4] + w*a[4]
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&movd("mm5",&DWP(24,$r,"",0)); # mm5 = r[6]
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&paddq("mm6","mm5"); # mm6 = r[6] + w*a[6]
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&movd(&DWP(16,$r,"",0),"mm1");
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&psrlq("mm1",32); # mm1 = carry4
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&paddq("mm1","mm4"); # mm1 = carry4 + r[5] + w*a[5]
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&movd("mm5",&DWP(28,$r,"",0)); # mm5 = r[7]
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&paddq("mm3","mm5"); # mm3 = r[7] + w*a[7]
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&movd(&DWP(20,$r,"",0),"mm1");
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&psrlq("mm1",32); # mm1 = carry5
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&paddq("mm1","mm6"); # mm1 = carry5 + r[6] + w*a[6]
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&movd(&DWP(24,$r,"",0),"mm1");
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&psrlq("mm1",32); # mm1 = carry6
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&paddq("mm1","mm3"); # mm1 = carry6 + r[7] + w*a[7]
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&movd(&DWP(28,$r,"",0),"mm1");
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&lea($r,&DWP(32,$r));
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&psrlq("mm1",32); # mm1 = carry_out
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&sub($c,8);
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&jz(&label("maw_sse2_exit"));
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&set_label("maw_sse2_entry");
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&test($c,0xfffffff8);
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&jnz(&label("maw_sse2_unrolled"));
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&set_label("maw_sse2_loop",4);
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&movd("mm2",&DWP(0,$a)); # mm2 = a[i]
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&movd("mm3",&DWP(0,$r)); # mm3 = r[i]
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&pmuludq("mm2","mm0"); # a[i] *= w
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&lea($a,&DWP(4,$a));
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&paddq("mm1","mm3"); # carry += r[i]
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&paddq("mm1","mm2"); # carry += a[i]*w
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&movd(&DWP(0,$r),"mm1"); # r[i] = carry_low
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&sub($c,1);
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&psrlq("mm1",32); # carry = carry_high
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&lea($r,&DWP(4,$r));
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&jnz(&label("maw_sse2_loop"));
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&set_label("maw_sse2_exit");
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&movd("eax","mm1"); # c = carry_out
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&emms();
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&ret();
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&set_label("maw_non_sse2",16);
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}
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# function_begin prologue
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&push("ebp");
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&push("ebx");
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&push("esi");
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&push("edi");
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&comment("");
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$Low="eax";
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$High="edx";
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$a="ebx";
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$w="ebp";
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$r="edi";
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$c="esi";
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&xor($c,$c); # clear carry
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&mov($r,&wparam(0)); #
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&mov("ecx",&wparam(2)); #
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&mov($a,&wparam(1)); #
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&and("ecx",0xfffffff8); # num / 8
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&mov($w,&wparam(3)); #
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&push("ecx"); # Up the stack for a tmp variable
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&jz(&label("maw_finish"));
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&set_label("maw_loop",16);
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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,$a)); # *a
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&mul($w); # *a * w
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&add("eax",$c); # L(t)+= c
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&adc("edx",0); # H(t)+=carry
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&add("eax",&DWP($i,$r)); # L(t)+= *r
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&adc("edx",0); # H(t)+=carry
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&mov(&DWP($i,$r),"eax"); # *r= L(t);
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&mov($c,"edx"); # c= H(t);
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}
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&comment("");
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&sub("ecx",8);
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&lea($a,&DWP(32,$a));
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&lea($r,&DWP(32,$r));
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&jnz(&label("maw_loop"));
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&set_label("maw_finish",0);
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&mov("ecx",&wparam(2)); # get num
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&and("ecx",7);
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&jnz(&label("maw_finish2")); # helps branch prediction
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&jmp(&label("maw_end"));
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&set_label("maw_finish2",1);
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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,$a)); # *a
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&mul($w); # *a * w
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&add("eax",$c); # L(t)+=c
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&adc("edx",0); # H(t)+=carry
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&add("eax",&DWP($i*4,$r)); # L(t)+= *r
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&adc("edx",0); # H(t)+=carry
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&dec("ecx") if ($i != 7-1);
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&mov(&DWP($i*4,$r),"eax"); # *r= L(t);
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&mov($c,"edx"); # c= H(t);
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&jz(&label("maw_end")) if ($i != 7-1);
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}
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&set_label("maw_end",0);
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&mov("eax",$c);
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&pop("ecx"); # clear variable from
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&function_end($name);
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}
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sub bn_mul_words
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{
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local($name)=@_;
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&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
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$r="eax";
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$a="edx";
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$c="ecx";
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if ($sse2) {
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&picmeup("eax","OPENSSL_ia32cap_P");
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&bt(&DWP(0,"eax"),26);
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&jnc(&label("mw_non_sse2"));
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&mov($r,&wparam(0));
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&mov($a,&wparam(1));
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&mov($c,&wparam(2));
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&movd("mm0",&wparam(3)); # mm0 = w
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&pxor("mm1","mm1"); # mm1 = carry = 0
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&set_label("mw_sse2_loop",16);
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&movd("mm2",&DWP(0,$a)); # mm2 = a[i]
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&pmuludq("mm2","mm0"); # a[i] *= w
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&lea($a,&DWP(4,$a));
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&paddq("mm1","mm2"); # carry += a[i]*w
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&movd(&DWP(0,$r),"mm1"); # r[i] = carry_low
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&sub($c,1);
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&psrlq("mm1",32); # carry = carry_high
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&lea($r,&DWP(4,$r));
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&jnz(&label("mw_sse2_loop"));
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&movd("eax","mm1"); # return carry
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&emms();
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&ret();
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&set_label("mw_non_sse2",16);
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}
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# function_begin prologue
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&push("ebp");
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&push("ebx");
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&push("esi");
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&push("edi");
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&comment("");
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$Low="eax";
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$High="edx";
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$a="ebx";
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$w="ecx";
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$r="edi";
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$c="esi";
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$num="ebp";
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&xor($c,$c); # clear carry
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&mov($r,&wparam(0)); #
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&mov($a,&wparam(1)); #
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&mov($num,&wparam(2)); #
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&mov($w,&wparam(3)); #
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&and($num,0xfffffff8); # num / 8
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&jz(&label("mw_finish"));
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&set_label("mw_loop",0);
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for ($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,$a,"",0)); # *a
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&mul($w); # *a * w
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&add("eax",$c); # L(t)+=c
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# XXX
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&adc("edx",0); # H(t)+=carry
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&mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
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&mov($c,"edx"); # c= H(t);
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}
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&comment("");
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&add($a,32);
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&add($r,32);
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&sub($num,8);
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&jz(&label("mw_finish"));
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&jmp(&label("mw_loop"));
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&set_label("mw_finish",0);
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&mov($num,&wparam(2)); # get num
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&and($num,7);
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&jnz(&label("mw_finish2"));
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&jmp(&label("mw_end"));
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&set_label("mw_finish2",1);
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for ($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,$a,"",0));# *a
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&mul($w); # *a * w
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&add("eax",$c); # L(t)+=c
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# XXX
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&adc("edx",0); # H(t)+=carry
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&mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t);
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&mov($c,"edx"); # c= H(t);
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&dec($num) if ($i != 7-1);
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&jz(&label("mw_end")) if ($i != 7-1);
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}
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&set_label("mw_end",0);
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&mov("eax",$c);
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&function_end($name);
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}
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sub bn_sqr_words
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{
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local($name)=@_;
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&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
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$r="eax";
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$a="edx";
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$c="ecx";
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if ($sse2) {
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&picmeup("eax","OPENSSL_ia32cap_P");
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&bt(&DWP(0,"eax"),26);
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&jnc(&label("sqr_non_sse2"));
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&mov($r,&wparam(0));
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&mov($a,&wparam(1));
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&mov($c,&wparam(2));
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&set_label("sqr_sse2_loop",16);
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&movd("mm0",&DWP(0,$a)); # mm0 = a[i]
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&pmuludq("mm0","mm0"); # a[i] *= a[i]
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&lea($a,&DWP(4,$a)); # a++
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&movq(&QWP(0,$r),"mm0"); # r[i] = a[i]*a[i]
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&sub($c,1);
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&lea($r,&DWP(8,$r)); # r += 2
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&jnz(&label("sqr_sse2_loop"));
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&emms();
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&ret();
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&set_label("sqr_non_sse2",16);
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}
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# function_begin prologue
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&push("ebp");
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&push("ebx");
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&push("esi");
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&push("edi");
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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($name);
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}
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sub bn_div_words
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{
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local($name)=@_;
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&function_begin_B($name,"");
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&mov("edx",&wparam(0)); #
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&mov("eax",&wparam(1)); #
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&mov("ecx",&wparam(2)); #
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&div("ecx");
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&ret();
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&function_end_B($name);
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}
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sub bn_add_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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$a="esi";
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$b="edi";
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$c="eax";
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$r="ebx";
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$tmp1="ecx";
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$tmp2="edx";
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$num="ebp";
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&mov($r,&wparam(0)); # get r
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&mov($a,&wparam(1)); # get a
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&mov($b,&wparam(2)); # get b
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&mov($num,&wparam(3)); # get num
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&xor($c,$c); # clear carry
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&and($num,0xfffffff8); # num / 8
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&jz(&label("aw_finish"));
|
|
|
|
&set_label("aw_loop",0);
|
|
for ($i=0; $i<8; $i++)
|
|
{
|
|
&comment("Round $i");
|
|
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
|
|
&add($tmp1,$c);
|
|
&mov($c,0);
|
|
&adc($c,$c);
|
|
&add($tmp1,$tmp2);
|
|
&adc($c,0);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
}
|
|
|
|
&comment("");
|
|
&add($a,32);
|
|
&add($b,32);
|
|
&add($r,32);
|
|
&sub($num,8);
|
|
&jnz(&label("aw_loop"));
|
|
|
|
&set_label("aw_finish",0);
|
|
&mov($num,&wparam(3)); # get num
|
|
&and($num,7);
|
|
&jz(&label("aw_end"));
|
|
|
|
for ($i=0; $i<7; $i++)
|
|
{
|
|
&comment("Tail Round $i");
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&mov($tmp2,&DWP($i*4,$b,"",0));# *b
|
|
&add($tmp1,$c);
|
|
&mov($c,0);
|
|
&adc($c,$c);
|
|
&add($tmp1,$tmp2);
|
|
&adc($c,0);
|
|
&dec($num) if ($i != 6);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
&jz(&label("aw_end")) if ($i != 6);
|
|
}
|
|
&set_label("aw_end",0);
|
|
|
|
# &mov("eax",$c); # $c is "eax"
|
|
|
|
&function_end($name);
|
|
}
|
|
|
|
sub bn_sub_words
|
|
{
|
|
local($name)=@_;
|
|
|
|
&function_begin($name,"");
|
|
|
|
&comment("");
|
|
$a="esi";
|
|
$b="edi";
|
|
$c="eax";
|
|
$r="ebx";
|
|
$tmp1="ecx";
|
|
$tmp2="edx";
|
|
$num="ebp";
|
|
|
|
&mov($r,&wparam(0)); # get r
|
|
&mov($a,&wparam(1)); # get a
|
|
&mov($b,&wparam(2)); # get b
|
|
&mov($num,&wparam(3)); # get num
|
|
&xor($c,$c); # clear carry
|
|
&and($num,0xfffffff8); # num / 8
|
|
|
|
&jz(&label("aw_finish"));
|
|
|
|
&set_label("aw_loop",0);
|
|
for ($i=0; $i<8; $i++)
|
|
{
|
|
&comment("Round $i");
|
|
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
|
|
&sub($tmp1,$c);
|
|
&mov($c,0);
|
|
&adc($c,$c);
|
|
&sub($tmp1,$tmp2);
|
|
&adc($c,0);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
}
|
|
|
|
&comment("");
|
|
&add($a,32);
|
|
&add($b,32);
|
|
&add($r,32);
|
|
&sub($num,8);
|
|
&jnz(&label("aw_loop"));
|
|
|
|
&set_label("aw_finish",0);
|
|
&mov($num,&wparam(3)); # get num
|
|
&and($num,7);
|
|
&jz(&label("aw_end"));
|
|
|
|
for ($i=0; $i<7; $i++)
|
|
{
|
|
&comment("Tail Round $i");
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&mov($tmp2,&DWP($i*4,$b,"",0));# *b
|
|
&sub($tmp1,$c);
|
|
&mov($c,0);
|
|
&adc($c,$c);
|
|
&sub($tmp1,$tmp2);
|
|
&adc($c,0);
|
|
&dec($num) if ($i != 6);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
&jz(&label("aw_end")) if ($i != 6);
|
|
}
|
|
&set_label("aw_end",0);
|
|
|
|
# &mov("eax",$c); # $c is "eax"
|
|
|
|
&function_end($name);
|
|
}
|
|
|
|
sub bn_sub_part_words
|
|
{
|
|
local($name)=@_;
|
|
|
|
&function_begin($name,"");
|
|
|
|
&comment("");
|
|
$a="esi";
|
|
$b="edi";
|
|
$c="eax";
|
|
$r="ebx";
|
|
$tmp1="ecx";
|
|
$tmp2="edx";
|
|
$num="ebp";
|
|
|
|
&mov($r,&wparam(0)); # get r
|
|
&mov($a,&wparam(1)); # get a
|
|
&mov($b,&wparam(2)); # get b
|
|
&mov($num,&wparam(3)); # get num
|
|
&xor($c,$c); # clear carry
|
|
&and($num,0xfffffff8); # num / 8
|
|
|
|
&jz(&label("aw_finish"));
|
|
|
|
&set_label("aw_loop",0);
|
|
for ($i=0; $i<8; $i++)
|
|
{
|
|
&comment("Round $i");
|
|
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
|
|
&sub($tmp1,$c);
|
|
&mov($c,0);
|
|
&adc($c,$c);
|
|
&sub($tmp1,$tmp2);
|
|
&adc($c,0);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
}
|
|
|
|
&comment("");
|
|
&add($a,32);
|
|
&add($b,32);
|
|
&add($r,32);
|
|
&sub($num,8);
|
|
&jnz(&label("aw_loop"));
|
|
|
|
&set_label("aw_finish",0);
|
|
&mov($num,&wparam(3)); # get num
|
|
&and($num,7);
|
|
&jz(&label("aw_end"));
|
|
|
|
for ($i=0; $i<7; $i++)
|
|
{
|
|
&comment("Tail Round $i");
|
|
&mov($tmp1,&DWP(0,$a,"",0)); # *a
|
|
&mov($tmp2,&DWP(0,$b,"",0));# *b
|
|
&sub($tmp1,$c);
|
|
&mov($c,0);
|
|
&adc($c,$c);
|
|
&sub($tmp1,$tmp2);
|
|
&adc($c,0);
|
|
&mov(&DWP(0,$r,"",0),$tmp1); # *r
|
|
&add($a, 4);
|
|
&add($b, 4);
|
|
&add($r, 4);
|
|
&dec($num) if ($i != 6);
|
|
&jz(&label("aw_end")) if ($i != 6);
|
|
}
|
|
&set_label("aw_end",0);
|
|
|
|
&cmp(&wparam(4),0);
|
|
&je(&label("pw_end"));
|
|
|
|
&mov($num,&wparam(4)); # get dl
|
|
&cmp($num,0);
|
|
&je(&label("pw_end"));
|
|
&jge(&label("pw_pos"));
|
|
|
|
&comment("pw_neg");
|
|
&mov($tmp2,0);
|
|
&sub($tmp2,$num);
|
|
&mov($num,$tmp2);
|
|
&and($num,0xfffffff8); # num / 8
|
|
&jz(&label("pw_neg_finish"));
|
|
|
|
&set_label("pw_neg_loop",0);
|
|
for ($i=0; $i<8; $i++)
|
|
{
|
|
&comment("dl<0 Round $i");
|
|
|
|
&mov($tmp1,0);
|
|
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
|
|
&sub($tmp1,$c);
|
|
&mov($c,0);
|
|
&adc($c,$c);
|
|
&sub($tmp1,$tmp2);
|
|
&adc($c,0);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
}
|
|
|
|
&comment("");
|
|
&add($b,32);
|
|
&add($r,32);
|
|
&sub($num,8);
|
|
&jnz(&label("pw_neg_loop"));
|
|
|
|
&set_label("pw_neg_finish",0);
|
|
&mov($tmp2,&wparam(4)); # get dl
|
|
&mov($num,0);
|
|
&sub($num,$tmp2);
|
|
&and($num,7);
|
|
&jz(&label("pw_end"));
|
|
|
|
for ($i=0; $i<7; $i++)
|
|
{
|
|
&comment("dl<0 Tail Round $i");
|
|
&mov($tmp1,0);
|
|
&mov($tmp2,&DWP($i*4,$b,"",0));# *b
|
|
&sub($tmp1,$c);
|
|
&mov($c,0);
|
|
&adc($c,$c);
|
|
&sub($tmp1,$tmp2);
|
|
&adc($c,0);
|
|
&dec($num) if ($i != 6);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
&jz(&label("pw_end")) if ($i != 6);
|
|
}
|
|
|
|
&jmp(&label("pw_end"));
|
|
|
|
&set_label("pw_pos",0);
|
|
|
|
&and($num,0xfffffff8); # num / 8
|
|
&jz(&label("pw_pos_finish"));
|
|
|
|
&set_label("pw_pos_loop",0);
|
|
|
|
for ($i=0; $i<8; $i++)
|
|
{
|
|
&comment("dl>0 Round $i");
|
|
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&sub($tmp1,$c);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
&jnc(&label("pw_nc".$i));
|
|
}
|
|
|
|
&comment("");
|
|
&add($a,32);
|
|
&add($r,32);
|
|
&sub($num,8);
|
|
&jnz(&label("pw_pos_loop"));
|
|
|
|
&set_label("pw_pos_finish",0);
|
|
&mov($num,&wparam(4)); # get dl
|
|
&and($num,7);
|
|
&jz(&label("pw_end"));
|
|
|
|
for ($i=0; $i<7; $i++)
|
|
{
|
|
&comment("dl>0 Tail Round $i");
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&sub($tmp1,$c);
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
&jnc(&label("pw_tail_nc".$i));
|
|
&dec($num) if ($i != 6);
|
|
&jz(&label("pw_end")) if ($i != 6);
|
|
}
|
|
&mov($c,1);
|
|
&jmp(&label("pw_end"));
|
|
|
|
&set_label("pw_nc_loop",0);
|
|
for ($i=0; $i<8; $i++)
|
|
{
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
&set_label("pw_nc".$i,0);
|
|
}
|
|
|
|
&comment("");
|
|
&add($a,32);
|
|
&add($r,32);
|
|
&sub($num,8);
|
|
&jnz(&label("pw_nc_loop"));
|
|
|
|
&mov($num,&wparam(4)); # get dl
|
|
&and($num,7);
|
|
&jz(&label("pw_nc_end"));
|
|
|
|
for ($i=0; $i<7; $i++)
|
|
{
|
|
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|
&set_label("pw_tail_nc".$i,0);
|
|
&dec($num) if ($i != 6);
|
|
&jz(&label("pw_nc_end")) if ($i != 6);
|
|
}
|
|
|
|
&set_label("pw_nc_end",0);
|
|
&mov($c,0);
|
|
|
|
&set_label("pw_end",0);
|
|
|
|
# &mov("eax",$c); # $c is "eax"
|
|
|
|
&function_end($name);
|
|
}
|
|
|