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| Source at commit 296 created 12 years 11 months ago. By ifabio, add i386 folder | |
|---|---|
| 1 | #include "libsaio.h"␊ |
| 2 | ␊ |
| 3 | extern void __divide_error();␊ |
| 4 | ␊ |
| 5 | uint64_t __udivmoddi4(uint64_t num, uint64_t den, uint64_t * rem_p)␊ |
| 6 | {␊ |
| 7 | ␉uint64_t quot = 0, qbit = 1;␊ |
| 8 | ␊ |
| 9 | ␉if (den == 0) {␊ |
| 10 | ␉␉__divide_error();␊ |
| 11 | ␉␉return 0;␉/* If trap returns... */␊ |
| 12 | ␉}␊ |
| 13 | ␊ |
| 14 | ␉/* Left-justify denominator and count shift */␊ |
| 15 | ␉while ((int64_t) den >= 0) {␊ |
| 16 | ␉␉den <<= 1;␊ |
| 17 | ␉␉qbit <<= 1;␊ |
| 18 | ␉}␊ |
| 19 | ␊ |
| 20 | ␉while (qbit) {␊ |
| 21 | ␉␉if (den <= num) {␊ |
| 22 | ␉␉␉num -= den;␊ |
| 23 | ␉␉␉quot += qbit;␊ |
| 24 | ␉␉}␊ |
| 25 | ␉␉den >>= 1;␊ |
| 26 | ␉␉qbit >>= 1;␊ |
| 27 | ␉}␊ |
| 28 | ␊ |
| 29 | ␉if (rem_p)␊ |
| 30 | ␉␉*rem_p = num;␊ |
| 31 | ␊ |
| 32 | ␉return quot;␊ |
| 33 | }␊ |
| 34 | |
