Revision c0b24a1d target-i386/helper.c
| b/target-i386/helper.c | ||
|---|---|---|
| 3261 | 3261 |
static int div64(uint64_t *plow, uint64_t *phigh, uint64_t b) |
| 3262 | 3262 |
{
|
| 3263 | 3263 |
uint64_t q, r, a1, a0; |
| 3264 |
int i, qb; |
|
| 3264 |
int i, qb, ab;
|
|
| 3265 | 3265 |
|
| 3266 | 3266 |
a0 = *plow; |
| 3267 | 3267 |
a1 = *phigh; |
| ... | ... | |
| 3275 | 3275 |
return 1; |
| 3276 | 3276 |
/* XXX: use a better algorithm */ |
| 3277 | 3277 |
for(i = 0; i < 64; i++) {
|
| 3278 |
ab = a1 >> 63; |
|
| 3278 | 3279 |
a1 = (a1 << 1) | (a0 >> 63); |
| 3279 |
if (a1 >= b) {
|
|
| 3280 |
if (ab || a1 >= b) {
|
|
| 3280 | 3281 |
a1 -= b; |
| 3281 | 3282 |
qb = 1; |
| 3282 | 3283 |
} else {
|
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