miscemu/cpu.c

   1 /*
   2  * What processor?
   3  *
   4  * Copyright 1995 Morten Welinder
   5  */
   6
   7 #include <stdio.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include "windows.h"
  11
  12 int runtime_cpu (void)
  13 {
  14   static int cache = 0;
  15
  16 #ifdef linux
  17   if (!cache)
  18     {
  19       FILE *f = fopen ("/proc/cpuinfo", "r");
  20
  21       cache = 3;  /* Default.  */
  22
  23       if (f)
  24         {
  25           char info[5], value[5];
  26           while (fscanf (f, " %4s%*s : %4s%*s", info, value) == 2)
  27             if (!lstrcmpi (info, "cpu"))
  28               {
  29                 if (isdigit (value[0]) && value[1] == '8'
  30                     && value[2] == '6' && value[3] == 0)
  31                   {
  32                     cache = value[0] - '0';
  33                     break;
  34                   }
  35               }
  36           fclose (f);
  37         }
  38     }
  39   return cache;
  40 #else
  41   /* FIXME: how do we do this on other systems? */
  42   return 3;
  43 #endif
  44 }