| #include <stdio.h> | |
| #include <math.h> | |
| double d; | |
| int i; | |
| extern void do_tst ( void ); | |
| asm( | |
| "\n" | |
| "do_tst:\n" | |
| "\txorl %eax,%eax\n" | |
| "\tfld d\n" | |
| "\tftst\n" | |
| "\tfnstsw %ax\n" | |
| "\tmovl %eax, i\n" | |
| "\tret\n" | |
| ); | |
| int main ( void ) | |
| { | |
| d = -1.23; do_tst(); printf("%f -> 0x%x\n", d, i ); | |
| d = 0.0; do_tst(); printf("%f -> 0x%x\n", d, i ); | |
| d = 9.87; do_tst(); printf("%f -> 0x%x\n", d, i ); | |
| return 0; | |
| } |