openssl/crypto/bn/asm/x86/add.pl - Issue 2072073002: Delete bundled copy of OpenSSL and replace with README.

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Side by Side Diff: openssl/crypto/bn/asm/x86/add.pl

Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master

Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago

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1 #!/usr/local/bin/perl

2 # x86 assember

3

4 sub bn_add_words

5 {

6 local($name)=@_;

7

8 &function_begin($name,"");

9

10 &comment("");

11 $a="esi";

12 $b="edi";

13 $c="eax";

14 $r="ebx";

15 $tmp1="ecx";

16 $tmp2="edx";

17 $num="ebp";

18

19 &mov($r,&wparam(0)); # get r

20 &mov($a,&wparam(1)); # get a

21 &mov($b,&wparam(2)); # get b

22 &mov($num,&wparam(3)); # get num

23 &xor($c,$c); # clear carry

24 &and($num,0xfffffff8); # num / 8

25

26 &jz(&label("aw_finish"));

27

28 &set_label("aw_loop",0);

29 for ($i=0; $i<8; $i++)

30 {

31 &comment("Round $i");

32

33 &mov($tmp1,&DWP($i4,$a,"",0)); # a

34 &mov($tmp2,&DWP($i4,$b,"",0)); # b

35 &add($tmp1,$c);

36 &mov($c,0);

37 &adc($c,$c);

38 &add($tmp1,$tmp2);

39 &adc($c,0);

40 &mov(&DWP($i4,$r,"",0),$tmp1); # r

41 }

42

43 &comment("");

44 &add($a,32);

45 &add($b,32);

46 &add($r,32);

47 &sub($num,8);

48 &jnz(&label("aw_loop"));

49

50 &set_label("aw_finish",0);

51 &mov($num,&wparam(3)); # get num

52 &and($num,7);

53 &jz(&label("aw_end"));

54

55 for ($i=0; $i<7; $i++)

56 {

57 &comment("Tail Round $i");

58 &mov($tmp1,&DWP($i4,$a,"",0)); # a

59 &mov($tmp2,&DWP($i4,$b,"",0));# b

60 &add($tmp1,$c);

61 &mov($c,0);

62 &adc($c,$c);

63 &add($tmp1,$tmp2);

64 &adc($c,0);

65 &dec($num) if ($i != 6);

66 &mov(&DWP($i4,$r,"",0),$tmp1); # a

67 &jz(&label("aw_end")) if ($i != 6);

68 }

69 &set_label("aw_end",0);

70

71 # &mov("eax",$c); # $c is "eax"

72

73 &function_end($name);

74 }

75

76 1;

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