VEX/test/fldenv.c

   1
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4
   5 void do_fstenv ( void* p )
   6 {
   7    asm("movl 8(%esp), %eax ; fstenv (%eax)");
   8 }
   9
  10 void do_fldenv ( void* p )
  11 {
  12    asm("movl 8(%esp), %eax ; fldenv (%eax)");
  13 }
  14
  15 int main ( void )
  16 {
  17    int i;
  18    unsigned short* buf = malloc(14*sizeof(short));
  19    for (i = 0; i < 14; i++)
  20       buf[i] = i;
  21    buf[0] = 0x037f;
  22
  23    do_fldenv(buf);
  24    do_fstenv(buf);
  25    for (i = 0; i < 14; i++) {
  26       printf("%04x ", buf[i]);
  27       if (i > 0 && ((i % 12) == 11))
  28           printf("\n");
  29    }
  30    printf("\n");
  31    return 0;
  32 }