1 2 #include <stdio.h> 3 4 typedef unsigned int UInt; 5 typedef unsigned long long int ULong; 6 7 void cpuid ( UInt* eax, UInt* ebx, UInt* ecx, UInt* edx, 8 UInt index, UInt ecx_in ) 9 { 10 UInt a,b,c,d; 11 asm volatile ("cpuid" 12 : "=a" (a), "=b" (b), "=c" (c), "=d" (d) \ 13 : "0" (index), "2"(ecx_in) ); 14 *eax = a; *ebx = b; *ecx = c; *edx = d; 15 printf("%08x %08x -> %08x %08x %08x %08x\n", 16 index,ecx_in, a,b,c,d ); 17 } 18 19 int main ( void ) 20 { 21 UInt eax, ebx, ecx, edx; 22 UInt maxidx, maxextidx, i,ecx_in; 23 24 printf("\n"); 25 cpuid(&eax,&ebx,&ecx,&edx, 0,0); 26 maxidx = eax; 27 for (i = 1; i <= maxidx +5; i++) { 28 29 UInt subleaf = 0; 30 31 if (i == 4) subleaf = 10; 32 if (i == 7) subleaf = 10; 33 if (i == 0xB) subleaf = 10; 34 if (i == 0xD) subleaf = 10; 35 36 if (subleaf > 0) printf("\n"); 37 38 cpuid(&eax,&ebx,&ecx,&edx, i,0); 39 40 for (ecx_in = 1; ecx_in < subleaf; ecx_in++) { 41 cpuid(&eax,&ebx,&ecx,&edx, i,ecx_in); 42 } 43 44 if (subleaf > 0) printf("\n"); 45 46 } 47 48 printf("\n"); 49 50 cpuid(&eax,&ebx,&ecx,&edx, 0x80000000,0); 51 maxextidx = eax; 52 for (i = 0x80000001; i <= maxextidx +5; i++) { 53 cpuid(&eax,&ebx,&ecx,&edx, i,0); 54 } 55 56 printf("invalid\n"); 57 cpuid(&eax,&ebx,&ecx,&edx, 1234,0); 58 cpuid(&eax,&ebx,&ecx,&edx, 0x800004d3,0); 59 60 61 return 0; 62 } 63
