VEX/test/fpucw.c

   1
   2 #include <stdio.h>
   3
   4 void fldcw_default ( void )
   5 {
   6   asm(" pushw $0x037F ; fldcw (%esp) ; addl $2, %esp");
   7 }
   8
   9 void fldcw_exns ( void )
  10 {
  11   asm(" pushw $0x037E ; fldcw (%esp) ; addl $2, %esp");
  12 }
  13
  14 void fldcw_precision ( void )
  15 {
  16   asm(" pushw $0x007F ; fldcw (%esp) ; addl $2, %esp");
  17 }
  18
  19 void fldcw_rounding ( void )
  20 {
  21   asm(" pushw $0x077F ; fldcw (%esp) ; addl $2, %esp");
  22 }
  23
  24 int main ( void )
  25 {
  26    printf("default\n");
  27    fldcw_default();
  28    printf("\n");
  29
  30    printf("exns\n");
  31    fldcw_exns();
  32    printf("\n");
  33
  34    printf("precision\n");
  35    fldcw_precision();
  36    printf("\n");
  37
  38    printf("rounding\n");
  39    fldcw_rounding();
  40    printf("\n");
  41
  42    return 0;
  43 }