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authorryker <>1998-10-05 20:13:14 +0000
committerryker <>1998-10-05 20:13:14 +0000
commitfe5d0717e2760d02faf23bf5a714f17b33ae4abb (patch)
tree8d4ad346f10a36bdd90b503d222bda6b4ecd0037 /src/lib/libcrypto/cast/asm
parent75bf5ead4149b2b67781def7ace1ec720ae1753e (diff)
parentaeeae06a79815dc190061534d47236cec09f9e32 (diff)
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This commit was generated by cvs2git to track changes on a CVS vendor
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Diffstat (limited to 'src/lib/libcrypto/cast/asm')
-rw-r--r--src/lib/libcrypto/cast/asm/cast-586.pl167
1 files changed, 167 insertions, 0 deletions
diff --git a/src/lib/libcrypto/cast/asm/cast-586.pl b/src/lib/libcrypto/cast/asm/cast-586.pl
new file mode 100644
index 0000000000..d0be004c99
--- /dev/null
+++ b/src/lib/libcrypto/cast/asm/cast-586.pl
@@ -0,0 +1,167 @@
1#!/usr/bin/perl
2
3# define for pentium pro friendly version
4$ppro=1;
5
6push(@INC,"perlasm","../../perlasm");
7require "x86asm.pl";
8require "cbc.pl";
9
10&asm_init($ARGV[0],"cast-586.pl");
11
12$CAST_ROUNDS=16;
13$L="edi";
14$R="esi";
15$K="ebp";
16$tmp1="ecx";
17$tmp2="ebx";
18$tmp3="eax";
19$tmp4="edx";
20$S1="CAST_S_table0";
21$S2="CAST_S_table1";
22$S3="CAST_S_table2";
23$S4="CAST_S_table3";
24
25@F1=("add","xor","sub");
26@F2=("xor","sub","add");
27@F3=("sub","add","xor");
28
29&CAST_encrypt("CAST_encrypt",1);
30&CAST_encrypt("CAST_decrypt",0);
31&cbc("CAST_cbc_encrypt","CAST_encrypt","CAST_decrypt",1,4,5,3,-1,-1);
32
33&asm_finish();
34
35sub CAST_encrypt
36 {
37 local($name,$enc)=@_;
38
39 local($win_ex)=<<"EOF";
40EXTERN _CAST_S_table0:DWORD
41EXTERN _CAST_S_table1:DWORD
42EXTERN _CAST_S_table2:DWORD
43EXTERN _CAST_S_table3:DWORD
44EOF
45 &main'external_label(
46 "CAST_S_table0",
47 "CAST_S_table1",
48 "CAST_S_table2",
49 "CAST_S_table3",
50 );
51
52 &function_begin_B($name,$win_ex);
53
54 &comment("");
55
56 &push("ebp");
57 &push("ebx");
58 &mov($tmp2,&wparam(0));
59 &mov($K,&wparam(1));
60 &push("esi");
61 &push("edi");
62
63 &comment("Load the 2 words");
64 &mov($L,&DWP(0,$tmp2,"",0));
65 &mov($R,&DWP(4,$tmp2,"",0));
66
67 &xor( $tmp3, $tmp3);
68
69 # encrypting part
70
71 if ($enc)
72 {
73 &E_CAST( 0,$S,$L,$R,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
74 &E_CAST( 1,$S,$R,$L,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
75 &E_CAST( 2,$S,$L,$R,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
76 &E_CAST( 3,$S,$R,$L,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
77 &E_CAST( 4,$S,$L,$R,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
78 &E_CAST( 5,$S,$R,$L,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
79 &E_CAST( 6,$S,$L,$R,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
80 &E_CAST( 7,$S,$R,$L,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
81 &E_CAST( 8,$S,$L,$R,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
82 &E_CAST( 9,$S,$R,$L,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
83 &E_CAST(10,$S,$L,$R,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
84 &E_CAST(11,$S,$R,$L,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
85 &E_CAST(12,$S,$L,$R,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
86 &E_CAST(13,$S,$R,$L,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
87 &E_CAST(14,$S,$L,$R,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
88 &E_CAST(15,$S,$R,$L,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4,1);
89 }
90 else
91 {
92 &E_CAST(15,$S,$L,$R,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
93 &E_CAST(14,$S,$R,$L,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
94 &E_CAST(13,$S,$L,$R,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
95 &E_CAST(12,$S,$R,$L,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
96 &E_CAST(11,$S,$L,$R,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
97 &E_CAST(10,$S,$R,$L,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
98 &E_CAST( 9,$S,$L,$R,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
99 &E_CAST( 8,$S,$R,$L,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
100 &E_CAST( 7,$S,$L,$R,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
101 &E_CAST( 6,$S,$R,$L,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
102 &E_CAST( 5,$S,$L,$R,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
103 &E_CAST( 4,$S,$R,$L,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
104 &E_CAST( 3,$S,$L,$R,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4);
105 &E_CAST( 2,$S,$R,$L,$K,@F3,$tmp1,$tmp2,$tmp3,$tmp4);
106 &E_CAST( 1,$S,$L,$R,$K,@F2,$tmp1,$tmp2,$tmp3,$tmp4);
107 &E_CAST( 0,$S,$R,$L,$K,@F1,$tmp1,$tmp2,$tmp3,$tmp4,1);
108 }
109
110 &nop();
111 &mov(&DWP(4,$tmp3,"",0),$L);
112 &mov(&DWP(0,$tmp3,"",0),$R);
113 &function_end($name);
114 }
115
116sub E_CAST
117 {
118 local($i,$S,$L,$R,$K,$OP1,$OP2,$OP3,$tmp1,$tmp2,$tmp3,$tmp4,$lst)=@_;
119 # Ri needs to have 16 pre added.
120
121 &comment("round $i");
122 &mov( $tmp4, &DWP($i*8,$K,"",1));
123
124 &mov( $tmp1, &DWP($i*8+4,$K,"",1));# must be word
125 &$OP1( $tmp4, $R);
126
127 &rotl( $tmp4, &LB($tmp1));
128
129 if ($ppro)
130 {
131 &mov( $tmp2, $tmp4); # B
132 &xor( $tmp1, $tmp1);
133
134 &movb( &LB($tmp1), &HB($tmp4)); # A
135 &and( $tmp2, 0xff);
136
137 &shr( $tmp4, 16); #
138 &xor( $tmp3, $tmp3);
139 }
140 else
141 {
142 &mov( $tmp2, $tmp4); # B
143 &movb( &LB($tmp1), &HB($tmp4)); # A # BAD BAD BAD
144
145 &shr( $tmp4, 16); #
146 &and( $tmp2, 0xff);
147 }
148
149 &movb( &LB($tmp3), &HB($tmp4)); # C # BAD BAD BAD
150 &and( $tmp4, 0xff); # D
151
152 &mov( $tmp1, &DWP($S1,"",$tmp1,4));
153 &mov( $tmp2, &DWP($S2,"",$tmp2,4));
154
155 &$OP2( $tmp1, $tmp2);
156 &mov( $tmp2, &DWP($S3,"",$tmp3,4));
157
158 &$OP3( $tmp1, $tmp2);
159 &mov( $tmp2, &DWP($S4,"",$tmp4,4));
160
161 &$OP1( $tmp1, $tmp2);
162 &mov($tmp3,&wparam(0)) if $lst;
163 # XXX
164
165 &xor( $L, $tmp1);
166 # XXX
167 }