1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
/* Test segment register getting. */
#include <stdio.h>
int main(void)
{
unsigned short csw = -1;
unsigned int csl = -1;
unsigned long csq = -1;
unsigned short csw_mem = -1;
__asm__ __volatile__ (
"movw %%cs, %0\n" /* mov segReg, r16 */
"movl %%cs, %1\n" /* mov segReg, r32 */
"movq %%cs, %2\n" /* mov segReg, r64 */
"movw %%cs, %3\n" /* mov segReg, mem16 */
: "=r" (csw), "=r" (csl), "=r" (csq), "=m" (csw_mem));
printf("cs(w)=%u\n", csw);
printf("cs(l)=%u\n", csl);
printf("cs(q)=%lu\n", csq);
printf("cs(w_mem)=%u\n", csw_mem);
return 0;
}
|
