x86cpuid.c
author "Tomas Zeman <tomas.zeman@sun.com>"
Fri, 19 Oct 2007 11:01:15 +0200
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#include <signal.h>
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void nope()
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{
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  exit(1);
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}
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main()
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{
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  unsigned long x[4];
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  unsigned long y[4];
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  int i;
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  int j;
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  char c;
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  signal(SIGILL,nope);
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  x[0] = 0;
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  x[1] = 0;
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  x[2] = 0;
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  x[3] = 0;
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  asm volatile(".byte 15;.byte 162" : "=a"(x[0]),"=b"(x[1]),"=c"(x[3]),"=d"(x[2]) : "0"(0) );
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  if (!x[0]) return 0;
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  asm volatile(".byte 15;.byte 162" : "=a"(y[0]),"=b"(y[1]),"=c"(y[2]),"=d"(y[3]) : "0"(1) );
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  for (i = 1;i < 4;++i)
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    for (j = 0;j < 4;++j) {
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      c = x[i] >> (8 * j);
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      if (c < 32) c = 32;
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      if (c > 126) c = 126;
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      putchar(c);
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    }
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  printf("-%08x-%08x\n",y[0],y[3]);
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  return 0;
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}