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  1. #include <stdio.h>
  2. #include <stdint.h>
  3. #include <cpuid.h>
  4. #include <string.h>
  5.  
  6. int main(int argc, char **argv)
  7. {
  8.     // a função opcode CPUID:
  9.     int op;  
  10.  
  11.     // registradores:
  12.     int eax; 
  13.     int ebx; 
  14.     int ecx; 
  15.     int edx;
  16.  
  17.     // parâmetro zero para CPUID indica que você quer o fabricante.
  18.     op = 0; 
  19.  
  20.     __asm__ ("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
  21.                      : "a" (op));
  22.  
  23.     // Receberá os valores de EBX, ECX e EDX para sistemas 32bits:
  24.     char vendor[sizeof(int) * 3 + 1]; 
  25.     strncpy(vendor, (const char*) &ebx, sizeof(int));
  26.     strncpy(&vendor[8], (const char*) &ecx, sizeof(int));
  27.     strncpy(&vendor[4], (const char*) &edx, sizeof(int));
  28.     vendor[12] = '\0'; // terminador nulo
  29.  
  30.     printf("CPU: %s", vendor);
  31.  
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0s 2008KB
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CPU: AuthenticAMD
https://ideone.com/tuNB6U
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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