blob: 7ddef7d00ee40703cf6cb8929f47d3889ae3aa62 [file] [log] [blame]
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#define CF (1<<0)
#define PF (1<<2)
#define AF (1<<4)
#define ZF (1<<6)
#define SF (1<<7)
#define OF (1<<11)
#define EFLAGS_BITS (CF|PF|AF|ZF|SF|OF)
void test16(uint16_t x, uint32_t eflags)
{
uint16_t bsr_result;
uint32_t bsr_eflags;
uint16_t bsf_result;
uint32_t bsf_eflags;
__asm volatile(""
: "=&r" (bsr_result), "=&r" (bsr_eflags)
: "r" (x), "i" (~EFLAGS_BITS), "r" (eflags));
__asm volatile(""
: "=&r" (bsf_result), "=&r" (bsf_eflags)
: "r" (x), "i" (~EFLAGS_BITS), "r" (eflags));
printf("%08x %04x bsrw %02x %08x bsfw %02x %08x\n",
x, eflags, bsr_result, bsr_eflags, bsf_result, bsf_eflags);
}