sewardj | 58c87fc | 2004-12-06 12:15:05 +0000 | [diff] [blame] | 1 | |
| 2 | #include <stdio.h> |
| 3 | |
| 4 | void mxcsr_default ( void ) |
| 5 | { |
| 6 | asm(" pushl $0x1F80 ; ldmxcsr (%esp) ; addl $4, %esp"); |
| 7 | } |
| 8 | |
| 9 | void mxcsr_exns ( void ) |
| 10 | { |
| 11 | asm(" pushl $0x1F00 ; ldmxcsr (%esp) ; addl $4, %esp"); |
| 12 | } |
| 13 | |
| 14 | /* PIII doesn't have DAZ, so this segfaults (!) on PIII. */a |
| 15 | void mxcsr_daz ( void ) |
| 16 | { |
| 17 | asm(" pushl $0x1FC0 ; ldmxcsr (%esp) ; addl $4, %esp"); |
| 18 | } |
| 19 | |
| 20 | void mxcsr_fz ( void ) |
| 21 | { |
| 22 | asm(" pushl $0x9F80 ; ldmxcsr (%esp) ; addl $4, %esp"); |
| 23 | } |
| 24 | |
| 25 | |
| 26 | int main ( void ) |
| 27 | { |
| 28 | printf("default\n"); |
| 29 | mxcsr_default(); |
| 30 | printf("\n"); |
| 31 | |
| 32 | printf("exns\n"); |
| 33 | mxcsr_exns(); |
| 34 | printf("\n"); |
| 35 | |
| 36 | printf("daz\n"); |
| 37 | mxcsr_daz(); |
| 38 | printf("\n"); |
| 39 | |
| 40 | printf("fz\n"); |
| 41 | mxcsr_fz(); |
| 42 | printf("\n"); |
| 43 | |
| 44 | return 0; |
| 45 | } |