release/src/router/dnscrypt/src/libnacl/cpuid/x86.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <signal.h>
   4 #include <unistd.h>
   5
   6 void nope()
   7 {
   8   exit(1);
   9 }
  10
  11 int main()
  12 {
  13   unsigned long x[4];
  14   unsigned long y[4];
  15   int i;
  16   int j;
  17   char c;
  18
  19   signal(SIGILL,nope);
  20
  21   x[0] = 0;
  22   x[1] = 0;
  23   x[2] = 0;
  24   x[3] = 0;
  25
  26   asm volatile(".byte 15;.byte 162" : "=a"(x[0]),"=b"(x[1]),"=c"(x[3]),"=d"(x[2]) : "0"(0) );
  27   if (!x[0]) return 0;
  28   asm volatile(".byte 15;.byte 162" : "=a"(y[0]),"=b"(y[1]),"=c"(y[2]),"=d"(y[3]) : "0"(1) );
  29
  30   for (i = 1;i < 4;++i)
  31     for (j = 0;j < 4;++j) {
  32       c = x[i] >> (8 * j);
  33       if (c < 32) c = 32;
  34       if (c > 126) c = 126;
  35       putchar(c);
  36     }
  37
  38   printf("-%08x-%08x\n",(unsigned int) y[0],(unsigned int) y[3]);
  39
  40   return 0;
  41 }