| 1 | #! /usr/bin/env perl
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| 2 | # Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | #
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| 4 | # Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | # this file except in compliance with the License. You can obtain a copy
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| 6 | # in the file LICENSE in the source distribution or at
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| 7 | # https://www.openssl.org/source/license.html
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| 8 |
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| 9 |
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| 10 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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| 11 | push(@INC,"${dir}","${dir}../../perlasm");
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| 12 | require "x86asm.pl";
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| 13 |
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| 14 | $output = pop;
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| 15 | open STDOUT,">$output";
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| 16 |
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| 17 | &asm_init($ARGV[0]);
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| 18 |
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| 19 | $sse2=0;
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| 20 | for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
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| 21 |
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| 22 | &external_label("OPENSSL_ia32cap_P") if ($sse2);
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| 23 |
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| 24 | &bn_mul_add_words("bn_mul_add_words");
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| 25 | &bn_mul_words("bn_mul_words");
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| 26 | &bn_sqr_words("bn_sqr_words");
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| 27 | &bn_div_words("bn_div_words");
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| 28 | &bn_add_words("bn_add_words");
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| 29 | &bn_sub_words("bn_sub_words");
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| 30 | &bn_sub_part_words("bn_sub_part_words");
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| 31 |
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| 32 | &asm_finish();
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| 33 |
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| 34 | close STDOUT or die "error closing STDOUT: $!";
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| 35 |
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| 36 | sub bn_mul_add_words
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| 37 | {
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| 38 | local($name)=@_;
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| 39 |
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| 40 | &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
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| 41 |
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| 42 | $r="eax";
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| 43 | $a="edx";
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| 44 | $c="ecx";
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| 45 |
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| 46 | if ($sse2) {
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| 47 | &picmeup("eax","OPENSSL_ia32cap_P");
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| 48 | &bt(&DWP(0,"eax"),26);
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| 49 | &jnc(&label("maw_non_sse2"));
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| 50 |
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| 51 | &mov($r,&wparam(0));
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| 52 | &mov($a,&wparam(1));
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| 53 | &mov($c,&wparam(2));
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| 54 | &movd("mm0",&wparam(3)); # mm0 = w
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| 55 | &pxor("mm1","mm1"); # mm1 = carry_in
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| 56 | &jmp(&label("maw_sse2_entry"));
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| 57 |
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| 58 | &set_label("maw_sse2_unrolled",16);
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| 59 | &movd("mm3",&DWP(0,$r,"",0)); # mm3 = r[0]
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| 60 | &paddq("mm1","mm3"); # mm1 = carry_in + r[0]
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| 61 | &movd("mm2",&DWP(0,$a,"",0)); # mm2 = a[0]
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| 62 | &pmuludq("mm2","mm0"); # mm2 = w*a[0]
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| 63 | &movd("mm4",&DWP(4,$a,"",0)); # mm4 = a[1]
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| 64 | &pmuludq("mm4","mm0"); # mm4 = w*a[1]
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| 65 | &movd("mm6",&DWP(8,$a,"",0)); # mm6 = a[2]
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| 66 | &pmuludq("mm6","mm0"); # mm6 = w*a[2]
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| 67 | &movd("mm7",&DWP(12,$a,"",0)); # mm7 = a[3]
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| 68 | &pmuludq("mm7","mm0"); # mm7 = w*a[3]
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| 69 | &paddq("mm1","mm2"); # mm1 = carry_in + r[0] + w*a[0]
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| 70 | &movd("mm3",&DWP(4,$r,"",0)); # mm3 = r[1]
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| 71 | &paddq("mm3","mm4"); # mm3 = r[1] + w*a[1]
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| 72 | &movd("mm5",&DWP(8,$r,"",0)); # mm5 = r[2]
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| 73 | &paddq("mm5","mm6"); # mm5 = r[2] + w*a[2]
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| 74 | &movd("mm4",&DWP(12,$r,"",0)); # mm4 = r[3]
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| 75 | &paddq("mm7","mm4"); # mm7 = r[3] + w*a[3]
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| 76 | &movd(&DWP(0,$r,"",0),"mm1");
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| 77 | &movd("mm2",&DWP(16,$a,"",0)); # mm2 = a[4]
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| 78 | &pmuludq("mm2","mm0"); # mm2 = w*a[4]
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| 79 | &psrlq("mm1",32); # mm1 = carry0
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| 80 | &movd("mm4",&DWP(20,$a,"",0)); # mm4 = a[5]
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| 81 | &pmuludq("mm4","mm0"); # mm4 = w*a[5]
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| 82 | &paddq("mm1","mm3"); # mm1 = carry0 + r[1] + w*a[1]
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| 83 | &movd("mm6",&DWP(24,$a,"",0)); # mm6 = a[6]
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| 84 | &pmuludq("mm6","mm0"); # mm6 = w*a[6]
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| 85 | &movd(&DWP(4,$r,"",0),"mm1");
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| 86 | &psrlq("mm1",32); # mm1 = carry1
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| 87 | &movd("mm3",&DWP(28,$a,"",0)); # mm3 = a[7]
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| 88 | &add($a,32);
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| 89 | &pmuludq("mm3","mm0"); # mm3 = w*a[7]
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| 90 | &paddq("mm1","mm5"); # mm1 = carry1 + r[2] + w*a[2]
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| 91 | &movd("mm5",&DWP(16,$r,"",0)); # mm5 = r[4]
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| 92 | &paddq("mm2","mm5"); # mm2 = r[4] + w*a[4]
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| 93 | &movd(&DWP(8,$r,"",0),"mm1");
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| 94 | &psrlq("mm1",32); # mm1 = carry2
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| 95 | &paddq("mm1","mm7"); # mm1 = carry2 + r[3] + w*a[3]
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| 96 | &movd("mm5",&DWP(20,$r,"",0)); # mm5 = r[5]
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| 97 | &paddq("mm4","mm5"); # mm4 = r[5] + w*a[5]
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| 98 | &movd(&DWP(12,$r,"",0),"mm1");
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| 99 | &psrlq("mm1",32); # mm1 = carry3
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| 100 | &paddq("mm1","mm2"); # mm1 = carry3 + r[4] + w*a[4]
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| 101 | &movd("mm5",&DWP(24,$r,"",0)); # mm5 = r[6]
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| 102 | &paddq("mm6","mm5"); # mm6 = r[6] + w*a[6]
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| 103 | &movd(&DWP(16,$r,"",0),"mm1");
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| 104 | &psrlq("mm1",32); # mm1 = carry4
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| 105 | &paddq("mm1","mm4"); # mm1 = carry4 + r[5] + w*a[5]
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| 106 | &movd("mm5",&DWP(28,$r,"",0)); # mm5 = r[7]
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| 107 | &paddq("mm3","mm5"); # mm3 = r[7] + w*a[7]
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| 108 | &movd(&DWP(20,$r,"",0),"mm1");
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| 109 | &psrlq("mm1",32); # mm1 = carry5
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| 110 | &paddq("mm1","mm6"); # mm1 = carry5 + r[6] + w*a[6]
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| 111 | &movd(&DWP(24,$r,"",0),"mm1");
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| 112 | &psrlq("mm1",32); # mm1 = carry6
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| 113 | &paddq("mm1","mm3"); # mm1 = carry6 + r[7] + w*a[7]
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| 114 | &movd(&DWP(28,$r,"",0),"mm1");
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| 115 | &lea($r,&DWP(32,$r));
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| 116 | &psrlq("mm1",32); # mm1 = carry_out
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| 117 |
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| 118 | &sub($c,8);
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| 119 | &jz(&label("maw_sse2_exit"));
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| 120 | &set_label("maw_sse2_entry");
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| 121 | &test($c,0xfffffff8);
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| 122 | &jnz(&label("maw_sse2_unrolled"));
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| 123 |
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| 124 | &set_label("maw_sse2_loop",4);
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| 125 | &movd("mm2",&DWP(0,$a)); # mm2 = a[i]
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| 126 | &movd("mm3",&DWP(0,$r)); # mm3 = r[i]
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| 127 | &pmuludq("mm2","mm0"); # a[i] *= w
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| 128 | &lea($a,&DWP(4,$a));
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| 129 | &paddq("mm1","mm3"); # carry += r[i]
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| 130 | &paddq("mm1","mm2"); # carry += a[i]*w
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| 131 | &movd(&DWP(0,$r),"mm1"); # r[i] = carry_low
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| 132 | &sub($c,1);
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| 133 | &psrlq("mm1",32); # carry = carry_high
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| 134 | &lea($r,&DWP(4,$r));
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| 135 | &jnz(&label("maw_sse2_loop"));
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| 136 | &set_label("maw_sse2_exit");
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| 137 | &movd("eax","mm1"); # c = carry_out
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| 138 | &emms();
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| 139 | &ret();
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| 140 |
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| 141 | &set_label("maw_non_sse2",16);
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| 142 | }
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| 143 |
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| 144 | # function_begin prologue
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| 145 | &push("ebp");
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| 146 | &push("ebx");
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| 147 | &push("esi");
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| 148 | &push("edi");
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| 149 |
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| 150 | &comment("");
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| 151 | $Low="eax";
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| 152 | $High="edx";
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| 153 | $a="ebx";
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| 154 | $w="ebp";
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| 155 | $r="edi";
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| 156 | $c="esi";
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| 157 |
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| 158 | &xor($c,$c); # clear carry
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| 159 | &mov($r,&wparam(0)); #
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| 160 |
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| 161 | &mov("ecx",&wparam(2)); #
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| 162 | &mov($a,&wparam(1)); #
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| 163 |
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| 164 | &and("ecx",0xfffffff8); # num / 8
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| 165 | &mov($w,&wparam(3)); #
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| 166 |
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| 167 | &push("ecx"); # Up the stack for a tmp variable
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| 168 |
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| 169 | &jz(&label("maw_finish"));
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| 170 |
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| 171 | &set_label("maw_loop",16);
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| 172 |
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| 173 | for ($i=0; $i<32; $i+=4)
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| 174 | {
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| 175 | &comment("Round $i");
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| 176 |
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| 177 | &mov("eax",&DWP($i,$a)); # *a
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| 178 | &mul($w); # *a * w
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| 179 | &add("eax",$c); # L(t)+= c
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| 180 | &adc("edx",0); # H(t)+=carry
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| 181 | &add("eax",&DWP($i,$r)); # L(t)+= *r
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| 182 | &adc("edx",0); # H(t)+=carry
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| 183 | &mov(&DWP($i,$r),"eax"); # *r= L(t);
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| 184 | &mov($c,"edx"); # c= H(t);
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| 185 | }
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| 186 |
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| 187 | &comment("");
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| 188 | &sub("ecx",8);
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| 189 | &lea($a,&DWP(32,$a));
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| 190 | &lea($r,&DWP(32,$r));
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| 191 | &jnz(&label("maw_loop"));
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| 192 |
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| 193 | &set_label("maw_finish",0);
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| 194 | &mov("ecx",&wparam(2)); # get num
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| 195 | &and("ecx",7);
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| 196 | &jnz(&label("maw_finish2")); # helps branch prediction
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| 197 | &jmp(&label("maw_end"));
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| 198 |
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| 199 | &set_label("maw_finish2",1);
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| 200 | for ($i=0; $i<7; $i++)
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| 201 | {
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| 202 | &comment("Tail Round $i");
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| 203 | &mov("eax",&DWP($i*4,$a)); # *a
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| 204 | &mul($w); # *a * w
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| 205 | &add("eax",$c); # L(t)+=c
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| 206 | &adc("edx",0); # H(t)+=carry
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| 207 | &add("eax",&DWP($i*4,$r)); # L(t)+= *r
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| 208 | &adc("edx",0); # H(t)+=carry
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| 209 | &dec("ecx") if ($i != 7-1);
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| 210 | &mov(&DWP($i*4,$r),"eax"); # *r= L(t);
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| 211 | &mov($c,"edx"); # c= H(t);
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| 212 | &jz(&label("maw_end")) if ($i != 7-1);
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| 213 | }
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| 214 | &set_label("maw_end",0);
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| 215 | &mov("eax",$c);
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| 216 |
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| 217 | &pop("ecx"); # clear variable from
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| 218 |
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| 219 | &function_end($name);
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| 220 | }
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| 221 |
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| 222 | sub bn_mul_words
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| 223 | {
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| 224 | local($name)=@_;
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| 225 |
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| 226 | &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
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| 227 |
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| 228 | $r="eax";
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| 229 | $a="edx";
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| 230 | $c="ecx";
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| 231 |
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| 232 | if ($sse2) {
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| 233 | &picmeup("eax","OPENSSL_ia32cap_P");
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| 234 | &bt(&DWP(0,"eax"),26);
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| 235 | &jnc(&label("mw_non_sse2"));
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| 236 |
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| 237 | &mov($r,&wparam(0));
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| 238 | &mov($a,&wparam(1));
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| 239 | &mov($c,&wparam(2));
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| 240 | &movd("mm0",&wparam(3)); # mm0 = w
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| 241 | &pxor("mm1","mm1"); # mm1 = carry = 0
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| 242 |
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| 243 | &set_label("mw_sse2_loop",16);
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| 244 | &movd("mm2",&DWP(0,$a)); # mm2 = a[i]
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| 245 | &pmuludq("mm2","mm0"); # a[i] *= w
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| 246 | &lea($a,&DWP(4,$a));
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| 247 | &paddq("mm1","mm2"); # carry += a[i]*w
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| 248 | &movd(&DWP(0,$r),"mm1"); # r[i] = carry_low
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| 249 | &sub($c,1);
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| 250 | &psrlq("mm1",32); # carry = carry_high
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| 251 | &lea($r,&DWP(4,$r));
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| 252 | &jnz(&label("mw_sse2_loop"));
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| 253 |
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| 254 | &movd("eax","mm1"); # return carry
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| 255 | &emms();
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| 256 | &ret();
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| 257 | &set_label("mw_non_sse2",16);
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| 258 | }
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| 259 |
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| 260 | # function_begin prologue
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| 261 | &push("ebp");
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| 262 | &push("ebx");
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| 263 | &push("esi");
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| 264 | &push("edi");
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| 265 |
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| 266 | &comment("");
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| 267 | $Low="eax";
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| 268 | $High="edx";
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| 269 | $a="ebx";
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| 270 | $w="ecx";
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| 271 | $r="edi";
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| 272 | $c="esi";
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| 273 | $num="ebp";
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| 274 |
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| 275 | &xor($c,$c); # clear carry
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| 276 | &mov($r,&wparam(0)); #
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| 277 | &mov($a,&wparam(1)); #
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| 278 | &mov($num,&wparam(2)); #
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| 279 | &mov($w,&wparam(3)); #
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| 280 |
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| 281 | &and($num,0xfffffff8); # num / 8
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| 282 | &jz(&label("mw_finish"));
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| 283 |
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| 284 | &set_label("mw_loop",0);
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| 285 | for ($i=0; $i<32; $i+=4)
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| 286 | {
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| 287 | &comment("Round $i");
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| 288 |
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| 289 | &mov("eax",&DWP($i,$a,"",0)); # *a
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| 290 | &mul($w); # *a * w
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| 291 | &add("eax",$c); # L(t)+=c
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| 292 | # XXX
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| 293 |
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| 294 | &adc("edx",0); # H(t)+=carry
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| 295 | &mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
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| 296 |
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| 297 | &mov($c,"edx"); # c= H(t);
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| 298 | }
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| 299 |
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| 300 | &comment("");
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| 301 | &add($a,32);
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| 302 | &add($r,32);
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| 303 | &sub($num,8);
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| 304 | &jz(&label("mw_finish"));
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| 305 | &jmp(&label("mw_loop"));
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| 306 |
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| 307 | &set_label("mw_finish",0);
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| 308 | &mov($num,&wparam(2)); # get num
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| 309 | &and($num,7);
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| 310 | &jnz(&label("mw_finish2"));
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| 311 | &jmp(&label("mw_end"));
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| 312 |
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| 313 | &set_label("mw_finish2",1);
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| 314 | for ($i=0; $i<7; $i++)
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| 315 | {
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| 316 | &comment("Tail Round $i");
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| 317 | &mov("eax",&DWP($i*4,$a,"",0));# *a
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| 318 | &mul($w); # *a * w
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| 319 | &add("eax",$c); # L(t)+=c
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| 320 | # XXX
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| 321 | &adc("edx",0); # H(t)+=carry
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| 322 | &mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t);
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| 323 | &mov($c,"edx"); # c= H(t);
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| 324 | &dec($num) if ($i != 7-1);
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| 325 | &jz(&label("mw_end")) if ($i != 7-1);
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| 326 | }
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| 327 | &set_label("mw_end",0);
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| 328 | &mov("eax",$c);
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| 329 |
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| 330 | &function_end($name);
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| 331 | }
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| 332 |
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| 333 | sub bn_sqr_words
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| 334 | {
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| 335 | local($name)=@_;
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| 336 |
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| 337 | &function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
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| 338 |
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| 339 | $r="eax";
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| 340 | $a="edx";
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| 341 | $c="ecx";
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| 342 |
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| 343 | if ($sse2) {
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| 344 | &picmeup("eax","OPENSSL_ia32cap_P");
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| 345 | &bt(&DWP(0,"eax"),26);
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| 346 | &jnc(&label("sqr_non_sse2"));
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| 347 |
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| 348 | &mov($r,&wparam(0));
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| 349 | &mov($a,&wparam(1));
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| 350 | &mov($c,&wparam(2));
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| 351 |
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| 352 | &set_label("sqr_sse2_loop",16);
|
|---|
| 353 | &movd("mm0",&DWP(0,$a)); # mm0 = a[i]
|
|---|
| 354 | &pmuludq("mm0","mm0"); # a[i] *= a[i]
|
|---|
| 355 | &lea($a,&DWP(4,$a)); # a++
|
|---|
| 356 | &movq(&QWP(0,$r),"mm0"); # r[i] = a[i]*a[i]
|
|---|
| 357 | &sub($c,1);
|
|---|
| 358 | &lea($r,&DWP(8,$r)); # r += 2
|
|---|
| 359 | &jnz(&label("sqr_sse2_loop"));
|
|---|
| 360 |
|
|---|
| 361 | &emms();
|
|---|
| 362 | &ret();
|
|---|
| 363 | &set_label("sqr_non_sse2",16);
|
|---|
| 364 | }
|
|---|
| 365 |
|
|---|
| 366 | # function_begin prologue
|
|---|
| 367 | &push("ebp");
|
|---|
| 368 | &push("ebx");
|
|---|
| 369 | &push("esi");
|
|---|
| 370 | &push("edi");
|
|---|
| 371 |
|
|---|
| 372 | &comment("");
|
|---|
| 373 | $r="esi";
|
|---|
| 374 | $a="edi";
|
|---|
| 375 | $num="ebx";
|
|---|
| 376 |
|
|---|
| 377 | &mov($r,&wparam(0)); #
|
|---|
| 378 | &mov($a,&wparam(1)); #
|
|---|
| 379 | &mov($num,&wparam(2)); #
|
|---|
| 380 |
|
|---|
| 381 | &and($num,0xfffffff8); # num / 8
|
|---|
| 382 | &jz(&label("sw_finish"));
|
|---|
| 383 |
|
|---|
| 384 | &set_label("sw_loop",0);
|
|---|
| 385 | for ($i=0; $i<32; $i+=4)
|
|---|
| 386 | {
|
|---|
| 387 | &comment("Round $i");
|
|---|
| 388 | &mov("eax",&DWP($i,$a,"",0)); # *a
|
|---|
| 389 | # XXX
|
|---|
| 390 | &mul("eax"); # *a * *a
|
|---|
| 391 | &mov(&DWP($i*2,$r,"",0),"eax"); #
|
|---|
| 392 | &mov(&DWP($i*2+4,$r,"",0),"edx");#
|
|---|
| 393 | }
|
|---|
| 394 |
|
|---|
| 395 | &comment("");
|
|---|
| 396 | &add($a,32);
|
|---|
| 397 | &add($r,64);
|
|---|
| 398 | &sub($num,8);
|
|---|
| 399 | &jnz(&label("sw_loop"));
|
|---|
| 400 |
|
|---|
| 401 | &set_label("sw_finish",0);
|
|---|
| 402 | &mov($num,&wparam(2)); # get num
|
|---|
| 403 | &and($num,7);
|
|---|
| 404 | &jz(&label("sw_end"));
|
|---|
| 405 |
|
|---|
| 406 | for ($i=0; $i<7; $i++)
|
|---|
| 407 | {
|
|---|
| 408 | &comment("Tail Round $i");
|
|---|
| 409 | &mov("eax",&DWP($i*4,$a,"",0)); # *a
|
|---|
| 410 | # XXX
|
|---|
| 411 | &mul("eax"); # *a * *a
|
|---|
| 412 | &mov(&DWP($i*8,$r,"",0),"eax"); #
|
|---|
| 413 | &dec($num) if ($i != 7-1);
|
|---|
| 414 | &mov(&DWP($i*8+4,$r,"",0),"edx");
|
|---|
| 415 | &jz(&label("sw_end")) if ($i != 7-1);
|
|---|
| 416 | }
|
|---|
| 417 | &set_label("sw_end",0);
|
|---|
| 418 |
|
|---|
| 419 | &function_end($name);
|
|---|
| 420 | }
|
|---|
| 421 |
|
|---|
| 422 | sub bn_div_words
|
|---|
| 423 | {
|
|---|
| 424 | local($name)=@_;
|
|---|
| 425 |
|
|---|
| 426 | &function_begin_B($name,"");
|
|---|
| 427 | &mov("edx",&wparam(0)); #
|
|---|
| 428 | &mov("eax",&wparam(1)); #
|
|---|
| 429 | &mov("ecx",&wparam(2)); #
|
|---|
| 430 | &div("ecx");
|
|---|
| 431 | &ret();
|
|---|
| 432 | &function_end_B($name);
|
|---|
| 433 | }
|
|---|
| 434 |
|
|---|
| 435 | sub bn_add_words
|
|---|
| 436 | {
|
|---|
| 437 | local($name)=@_;
|
|---|
| 438 |
|
|---|
| 439 | &function_begin($name,"");
|
|---|
| 440 |
|
|---|
| 441 | &comment("");
|
|---|
| 442 | $a="esi";
|
|---|
| 443 | $b="edi";
|
|---|
| 444 | $c="eax";
|
|---|
| 445 | $r="ebx";
|
|---|
| 446 | $tmp1="ecx";
|
|---|
| 447 | $tmp2="edx";
|
|---|
| 448 | $num="ebp";
|
|---|
| 449 |
|
|---|
| 450 | &mov($r,&wparam(0)); # get r
|
|---|
| 451 | &mov($a,&wparam(1)); # get a
|
|---|
| 452 | &mov($b,&wparam(2)); # get b
|
|---|
| 453 | &mov($num,&wparam(3)); # get num
|
|---|
| 454 | &xor($c,$c); # clear carry
|
|---|
| 455 | &and($num,0xfffffff8); # num / 8
|
|---|
| 456 |
|
|---|
| 457 | &jz(&label("aw_finish"));
|
|---|
| 458 |
|
|---|
| 459 | &set_label("aw_loop",0);
|
|---|
| 460 | for ($i=0; $i<8; $i++)
|
|---|
| 461 | {
|
|---|
| 462 | &comment("Round $i");
|
|---|
| 463 |
|
|---|
| 464 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 465 | &mov($tmp2,&DWP($i*4,$b,"",0)); # *b
|
|---|
| 466 | &add($tmp1,$c);
|
|---|
| 467 | &mov($c,0);
|
|---|
| 468 | &adc($c,$c);
|
|---|
| 469 | &add($tmp1,$tmp2);
|
|---|
| 470 | &adc($c,0);
|
|---|
| 471 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 472 | }
|
|---|
| 473 |
|
|---|
| 474 | &comment("");
|
|---|
| 475 | &add($a,32);
|
|---|
| 476 | &add($b,32);
|
|---|
| 477 | &add($r,32);
|
|---|
| 478 | &sub($num,8);
|
|---|
| 479 | &jnz(&label("aw_loop"));
|
|---|
| 480 |
|
|---|
| 481 | &set_label("aw_finish",0);
|
|---|
| 482 | &mov($num,&wparam(3)); # get num
|
|---|
| 483 | &and($num,7);
|
|---|
| 484 | &jz(&label("aw_end"));
|
|---|
| 485 |
|
|---|
| 486 | for ($i=0; $i<7; $i++)
|
|---|
| 487 | {
|
|---|
| 488 | &comment("Tail Round $i");
|
|---|
| 489 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 490 | &mov($tmp2,&DWP($i*4,$b,"",0));# *b
|
|---|
| 491 | &add($tmp1,$c);
|
|---|
| 492 | &mov($c,0);
|
|---|
| 493 | &adc($c,$c);
|
|---|
| 494 | &add($tmp1,$tmp2);
|
|---|
| 495 | &adc($c,0);
|
|---|
| 496 | &dec($num) if ($i != 6);
|
|---|
| 497 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 498 | &jz(&label("aw_end")) if ($i != 6);
|
|---|
| 499 | }
|
|---|
| 500 | &set_label("aw_end",0);
|
|---|
| 501 |
|
|---|
| 502 | # &mov("eax",$c); # $c is "eax"
|
|---|
| 503 |
|
|---|
| 504 | &function_end($name);
|
|---|
| 505 | }
|
|---|
| 506 |
|
|---|
| 507 | sub bn_sub_words
|
|---|
| 508 | {
|
|---|
| 509 | local($name)=@_;
|
|---|
| 510 |
|
|---|
| 511 | &function_begin($name,"");
|
|---|
| 512 |
|
|---|
| 513 | &comment("");
|
|---|
| 514 | $a="esi";
|
|---|
| 515 | $b="edi";
|
|---|
| 516 | $c="eax";
|
|---|
| 517 | $r="ebx";
|
|---|
| 518 | $tmp1="ecx";
|
|---|
| 519 | $tmp2="edx";
|
|---|
| 520 | $num="ebp";
|
|---|
| 521 |
|
|---|
| 522 | &mov($r,&wparam(0)); # get r
|
|---|
| 523 | &mov($a,&wparam(1)); # get a
|
|---|
| 524 | &mov($b,&wparam(2)); # get b
|
|---|
| 525 | &mov($num,&wparam(3)); # get num
|
|---|
| 526 | &xor($c,$c); # clear carry
|
|---|
| 527 | &and($num,0xfffffff8); # num / 8
|
|---|
| 528 |
|
|---|
| 529 | &jz(&label("aw_finish"));
|
|---|
| 530 |
|
|---|
| 531 | &set_label("aw_loop",0);
|
|---|
| 532 | for ($i=0; $i<8; $i++)
|
|---|
| 533 | {
|
|---|
| 534 | &comment("Round $i");
|
|---|
| 535 |
|
|---|
| 536 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 537 | &mov($tmp2,&DWP($i*4,$b,"",0)); # *b
|
|---|
| 538 | &sub($tmp1,$c);
|
|---|
| 539 | &mov($c,0);
|
|---|
| 540 | &adc($c,$c);
|
|---|
| 541 | &sub($tmp1,$tmp2);
|
|---|
| 542 | &adc($c,0);
|
|---|
| 543 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 544 | }
|
|---|
| 545 |
|
|---|
| 546 | &comment("");
|
|---|
| 547 | &add($a,32);
|
|---|
| 548 | &add($b,32);
|
|---|
| 549 | &add($r,32);
|
|---|
| 550 | &sub($num,8);
|
|---|
| 551 | &jnz(&label("aw_loop"));
|
|---|
| 552 |
|
|---|
| 553 | &set_label("aw_finish",0);
|
|---|
| 554 | &mov($num,&wparam(3)); # get num
|
|---|
| 555 | &and($num,7);
|
|---|
| 556 | &jz(&label("aw_end"));
|
|---|
| 557 |
|
|---|
| 558 | for ($i=0; $i<7; $i++)
|
|---|
| 559 | {
|
|---|
| 560 | &comment("Tail Round $i");
|
|---|
| 561 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 562 | &mov($tmp2,&DWP($i*4,$b,"",0));# *b
|
|---|
| 563 | &sub($tmp1,$c);
|
|---|
| 564 | &mov($c,0);
|
|---|
| 565 | &adc($c,$c);
|
|---|
| 566 | &sub($tmp1,$tmp2);
|
|---|
| 567 | &adc($c,0);
|
|---|
| 568 | &dec($num) if ($i != 6);
|
|---|
| 569 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 570 | &jz(&label("aw_end")) if ($i != 6);
|
|---|
| 571 | }
|
|---|
| 572 | &set_label("aw_end",0);
|
|---|
| 573 |
|
|---|
| 574 | # &mov("eax",$c); # $c is "eax"
|
|---|
| 575 |
|
|---|
| 576 | &function_end($name);
|
|---|
| 577 | }
|
|---|
| 578 |
|
|---|
| 579 | sub bn_sub_part_words
|
|---|
| 580 | {
|
|---|
| 581 | local($name)=@_;
|
|---|
| 582 |
|
|---|
| 583 | &function_begin($name,"");
|
|---|
| 584 |
|
|---|
| 585 | &comment("");
|
|---|
| 586 | $a="esi";
|
|---|
| 587 | $b="edi";
|
|---|
| 588 | $c="eax";
|
|---|
| 589 | $r="ebx";
|
|---|
| 590 | $tmp1="ecx";
|
|---|
| 591 | $tmp2="edx";
|
|---|
| 592 | $num="ebp";
|
|---|
| 593 |
|
|---|
| 594 | &mov($r,&wparam(0)); # get r
|
|---|
| 595 | &mov($a,&wparam(1)); # get a
|
|---|
| 596 | &mov($b,&wparam(2)); # get b
|
|---|
| 597 | &mov($num,&wparam(3)); # get num
|
|---|
| 598 | &xor($c,$c); # clear carry
|
|---|
| 599 | &and($num,0xfffffff8); # num / 8
|
|---|
| 600 |
|
|---|
| 601 | &jz(&label("aw_finish"));
|
|---|
| 602 |
|
|---|
| 603 | &set_label("aw_loop",0);
|
|---|
| 604 | for ($i=0; $i<8; $i++)
|
|---|
| 605 | {
|
|---|
| 606 | &comment("Round $i");
|
|---|
| 607 |
|
|---|
| 608 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 609 | &mov($tmp2,&DWP($i*4,$b,"",0)); # *b
|
|---|
| 610 | &sub($tmp1,$c);
|
|---|
| 611 | &mov($c,0);
|
|---|
| 612 | &adc($c,$c);
|
|---|
| 613 | &sub($tmp1,$tmp2);
|
|---|
| 614 | &adc($c,0);
|
|---|
| 615 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 616 | }
|
|---|
| 617 |
|
|---|
| 618 | &comment("");
|
|---|
| 619 | &add($a,32);
|
|---|
| 620 | &add($b,32);
|
|---|
| 621 | &add($r,32);
|
|---|
| 622 | &sub($num,8);
|
|---|
| 623 | &jnz(&label("aw_loop"));
|
|---|
| 624 |
|
|---|
| 625 | &set_label("aw_finish",0);
|
|---|
| 626 | &mov($num,&wparam(3)); # get num
|
|---|
| 627 | &and($num,7);
|
|---|
| 628 | &jz(&label("aw_end"));
|
|---|
| 629 |
|
|---|
| 630 | for ($i=0; $i<7; $i++)
|
|---|
| 631 | {
|
|---|
| 632 | &comment("Tail Round $i");
|
|---|
| 633 | &mov($tmp1,&DWP(0,$a,"",0)); # *a
|
|---|
| 634 | &mov($tmp2,&DWP(0,$b,"",0));# *b
|
|---|
| 635 | &sub($tmp1,$c);
|
|---|
| 636 | &mov($c,0);
|
|---|
| 637 | &adc($c,$c);
|
|---|
| 638 | &sub($tmp1,$tmp2);
|
|---|
| 639 | &adc($c,0);
|
|---|
| 640 | &mov(&DWP(0,$r,"",0),$tmp1); # *r
|
|---|
| 641 | &add($a, 4);
|
|---|
| 642 | &add($b, 4);
|
|---|
| 643 | &add($r, 4);
|
|---|
| 644 | &dec($num) if ($i != 6);
|
|---|
| 645 | &jz(&label("aw_end")) if ($i != 6);
|
|---|
| 646 | }
|
|---|
| 647 | &set_label("aw_end",0);
|
|---|
| 648 |
|
|---|
| 649 | &cmp(&wparam(4),0);
|
|---|
| 650 | &je(&label("pw_end"));
|
|---|
| 651 |
|
|---|
| 652 | &mov($num,&wparam(4)); # get dl
|
|---|
| 653 | &cmp($num,0);
|
|---|
| 654 | &je(&label("pw_end"));
|
|---|
| 655 | &jge(&label("pw_pos"));
|
|---|
| 656 |
|
|---|
| 657 | &comment("pw_neg");
|
|---|
| 658 | &mov($tmp2,0);
|
|---|
| 659 | &sub($tmp2,$num);
|
|---|
| 660 | &mov($num,$tmp2);
|
|---|
| 661 | &and($num,0xfffffff8); # num / 8
|
|---|
| 662 | &jz(&label("pw_neg_finish"));
|
|---|
| 663 |
|
|---|
| 664 | &set_label("pw_neg_loop",0);
|
|---|
| 665 | for ($i=0; $i<8; $i++)
|
|---|
| 666 | {
|
|---|
| 667 | &comment("dl<0 Round $i");
|
|---|
| 668 |
|
|---|
| 669 | &mov($tmp1,0);
|
|---|
| 670 | &mov($tmp2,&DWP($i*4,$b,"",0)); # *b
|
|---|
| 671 | &sub($tmp1,$c);
|
|---|
| 672 | &mov($c,0);
|
|---|
| 673 | &adc($c,$c);
|
|---|
| 674 | &sub($tmp1,$tmp2);
|
|---|
| 675 | &adc($c,0);
|
|---|
| 676 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 677 | }
|
|---|
| 678 |
|
|---|
| 679 | &comment("");
|
|---|
| 680 | &add($b,32);
|
|---|
| 681 | &add($r,32);
|
|---|
| 682 | &sub($num,8);
|
|---|
| 683 | &jnz(&label("pw_neg_loop"));
|
|---|
| 684 |
|
|---|
| 685 | &set_label("pw_neg_finish",0);
|
|---|
| 686 | &mov($tmp2,&wparam(4)); # get dl
|
|---|
| 687 | &mov($num,0);
|
|---|
| 688 | &sub($num,$tmp2);
|
|---|
| 689 | &and($num,7);
|
|---|
| 690 | &jz(&label("pw_end"));
|
|---|
| 691 |
|
|---|
| 692 | for ($i=0; $i<7; $i++)
|
|---|
| 693 | {
|
|---|
| 694 | &comment("dl<0 Tail Round $i");
|
|---|
| 695 | &mov($tmp1,0);
|
|---|
| 696 | &mov($tmp2,&DWP($i*4,$b,"",0));# *b
|
|---|
| 697 | &sub($tmp1,$c);
|
|---|
| 698 | &mov($c,0);
|
|---|
| 699 | &adc($c,$c);
|
|---|
| 700 | &sub($tmp1,$tmp2);
|
|---|
| 701 | &adc($c,0);
|
|---|
| 702 | &dec($num) if ($i != 6);
|
|---|
| 703 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 704 | &jz(&label("pw_end")) if ($i != 6);
|
|---|
| 705 | }
|
|---|
| 706 |
|
|---|
| 707 | &jmp(&label("pw_end"));
|
|---|
| 708 |
|
|---|
| 709 | &set_label("pw_pos",0);
|
|---|
| 710 |
|
|---|
| 711 | &and($num,0xfffffff8); # num / 8
|
|---|
| 712 | &jz(&label("pw_pos_finish"));
|
|---|
| 713 |
|
|---|
| 714 | &set_label("pw_pos_loop",0);
|
|---|
| 715 |
|
|---|
| 716 | for ($i=0; $i<8; $i++)
|
|---|
| 717 | {
|
|---|
| 718 | &comment("dl>0 Round $i");
|
|---|
| 719 |
|
|---|
| 720 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 721 | &sub($tmp1,$c);
|
|---|
| 722 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 723 | &jnc(&label("pw_nc".$i));
|
|---|
| 724 | }
|
|---|
| 725 |
|
|---|
| 726 | &comment("");
|
|---|
| 727 | &add($a,32);
|
|---|
| 728 | &add($r,32);
|
|---|
| 729 | &sub($num,8);
|
|---|
| 730 | &jnz(&label("pw_pos_loop"));
|
|---|
| 731 |
|
|---|
| 732 | &set_label("pw_pos_finish",0);
|
|---|
| 733 | &mov($num,&wparam(4)); # get dl
|
|---|
| 734 | &and($num,7);
|
|---|
| 735 | &jz(&label("pw_end"));
|
|---|
| 736 |
|
|---|
| 737 | for ($i=0; $i<7; $i++)
|
|---|
| 738 | {
|
|---|
| 739 | &comment("dl>0 Tail Round $i");
|
|---|
| 740 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 741 | &sub($tmp1,$c);
|
|---|
| 742 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 743 | &jnc(&label("pw_tail_nc".$i));
|
|---|
| 744 | &dec($num) if ($i != 6);
|
|---|
| 745 | &jz(&label("pw_end")) if ($i != 6);
|
|---|
| 746 | }
|
|---|
| 747 | &mov($c,1);
|
|---|
| 748 | &jmp(&label("pw_end"));
|
|---|
| 749 |
|
|---|
| 750 | &set_label("pw_nc_loop",0);
|
|---|
| 751 | for ($i=0; $i<8; $i++)
|
|---|
| 752 | {
|
|---|
| 753 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 754 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 755 | &set_label("pw_nc".$i,0);
|
|---|
| 756 | }
|
|---|
| 757 |
|
|---|
| 758 | &comment("");
|
|---|
| 759 | &add($a,32);
|
|---|
| 760 | &add($r,32);
|
|---|
| 761 | &sub($num,8);
|
|---|
| 762 | &jnz(&label("pw_nc_loop"));
|
|---|
| 763 |
|
|---|
| 764 | &mov($num,&wparam(4)); # get dl
|
|---|
| 765 | &and($num,7);
|
|---|
| 766 | &jz(&label("pw_nc_end"));
|
|---|
| 767 |
|
|---|
| 768 | for ($i=0; $i<7; $i++)
|
|---|
| 769 | {
|
|---|
| 770 | &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
|
|---|
| 771 | &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
|
|---|
| 772 | &set_label("pw_tail_nc".$i,0);
|
|---|
| 773 | &dec($num) if ($i != 6);
|
|---|
| 774 | &jz(&label("pw_nc_end")) if ($i != 6);
|
|---|
| 775 | }
|
|---|
| 776 |
|
|---|
| 777 | &set_label("pw_nc_end",0);
|
|---|
| 778 | &mov($c,0);
|
|---|
| 779 |
|
|---|
| 780 | &set_label("pw_end",0);
|
|---|
| 781 |
|
|---|
| 782 | # &mov("eax",$c); # $c is "eax"
|
|---|
| 783 |
|
|---|
| 784 | &function_end($name);
|
|---|
| 785 | }
|
|---|
