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| 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/md4.h> | |
| 36 | |
| 37 extern "C" { | |
| 38 void md4_block_x86(MD4_CTX *ctx, unsigned char *buffer,int num); | |
| 39 } | |
| 40 | |
| 41 void main(int argc,char *argv[]) | |
| 42 { | |
| 43 unsigned char buffer[64*256]; | |
| 44 MD4_CTX ctx; | |
| 45 unsigned long s1,s2,e1,e2; | |
| 46 unsigned char k[16]; | |
| 47 unsigned long data[2]; | |
| 48 unsigned char iv[8]; | |
| 49 int i,num=0,numm; | |
| 50 int j=0; | |
| 51 | |
| 52 if (argc >= 2) | |
| 53 num=atoi(argv[1]); | |
| 54 | |
| 55 if (num == 0) num=16; | |
| 56 if (num > 250) num=16; | |
| 57 numm=num+2; | |
| 58 num*=64; | |
| 59 numm*=64; | |
| 60 | |
| 61 for (j=0; j<6; j++) | |
| 62 { | |
| 63 for (i=0; i<10; i++) /**/ | |
| 64 { | |
| 65 md4_block_x86(&ctx,buffer,numm); | |
| 66 GetTSC(s1); | |
| 67 md4_block_x86(&ctx,buffer,numm); | |
| 68 GetTSC(e1); | |
| 69 GetTSC(s2); | |
| 70 md4_block_x86(&ctx,buffer,num); | |
| 71 GetTSC(e2); | |
| 72 md4_block_x86(&ctx,buffer,num); | |
| 73 } | |
| 74 printf("md4 (%d bytes) %d %d (%.2f)\n",num, | |
| 75 e1-s1,e2-s2,(double)((e1-s1)-(e2-s2))/2); | |
| 76 } | |
| 77 } | |
| 78 | |
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