Remove redundant declaration.
[openssl.git] / crypto / des / des3s.cpp
1 //
2 // gettsc.inl
3 //
4 // gives access to the Pentium's (secret) cycle counter
5 //
6 // This software was written by Leonard Janke (janke@unixg.ubc.ca)
7 // in 1996-7 and is entered, by him, into the public domain.
8
9 #if defined(__WATCOMC__)
10 void GetTSC(unsigned long&);
11 #pragma aux GetTSC = 0x0f 0x31 "mov [edi], eax" parm [edi] modify [edx eax];
12 #elif defined(__GNUC__)
13 inline
14 void GetTSC(unsigned long& tsc)
15 {
16   asm volatile(".byte 15, 49\n\t"
17                : "=eax" (tsc)
18                :
19                : "%edx", "%eax");
20 }
21 #elif defined(_MSC_VER)
22 inline
23 void GetTSC(unsigned long& tsc)
24 {
25   unsigned long a;
26   __asm _emit 0fh
27   __asm _emit 31h
28   __asm mov a, eax;
29   tsc=a;
30 }
31 #endif      
32
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <openssl/des.h>
36
37 void main(int argc,char *argv[])
38         {
39         des_key_schedule key1,key2,key3;
40         unsigned long s1,s2,e1,e2;
41         unsigned long data[2];
42         int i,j;
43
44         for (j=0; j<6; j++)
45                 {
46                 for (i=0; i<1000; i++) /**/
47                         {
48                         des_encrypt3(&data[0],key1,key2,key3);
49                         GetTSC(s1);
50                         des_encrypt3(&data[0],key1,key2,key3);
51                         des_encrypt3(&data[0],key1,key2,key3);
52                         des_encrypt3(&data[0],key1,key2,key3);
53                         GetTSC(e1);
54                         GetTSC(s2);
55                         des_encrypt3(&data[0],key1,key2,key3);
56                         des_encrypt3(&data[0],key1,key2,key3);
57                         des_encrypt3(&data[0],key1,key2,key3);
58                         des_encrypt3(&data[0],key1,key2,key3);
59                         GetTSC(e2);
60                         des_encrypt3(&data[0],key1,key2,key3);
61                         }
62
63                 printf("des %d %d (%d)\n",
64                         e1-s1,e2-s2,((e2-s2)-(e1-s1)));
65                 }
66         }
67