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| Source at commit 1129 created 12 years 11 months ago. By meklort, Change options.o so that it reloads the system config as well. Also change it so that it uses that config for variables (NOTE: if the calue exists in chameleonConfig, it's used instead. | |
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| 1 | /*␊ |
| 2 | * memmove.c␊ |
| 3 | */␊ |
| 4 | ␊ |
| 5 | #include "libsaio.h"␊ |
| 6 | ␊ |
| 7 | void *memmove(void *dst, const void *src, size_t n)␊ |
| 8 | {␊ |
| 9 | ␉const char *p = src;␊ |
| 10 | ␉char *q = dst;␊ |
| 11 | #if defined(__i386__) || defined(__x86_64__)␊ |
| 12 | ␉if (q < p) {␊ |
| 13 | ␉␉asm volatile("cld; rep; movsb"␊ |
| 14 | ␉␉␉ : "+c" (n), "+S"(p), "+D"(q));␊ |
| 15 | ␉} else {␊ |
| 16 | ␉␉p += (n - 1);␊ |
| 17 | ␉␉q += (n - 1);␊ |
| 18 | ␉␉asm volatile("std; rep; movsb; cld"␊ |
| 19 | ␉␉␉ : "+c" (n), "+S"(p), "+D"(q));␊ |
| 20 | ␉}␊ |
| 21 | #else␊ |
| 22 | ␉if (q < p) {␊ |
| 23 | ␉␉while (n--) {␊ |
| 24 | ␉␉␉*q++ = *p++;␊ |
| 25 | ␉␉}␊ |
| 26 | ␉} else {␊ |
| 27 | ␉␉p += n;␊ |
| 28 | ␉␉q += n;␊ |
| 29 | ␉␉while (n--) {␊ |
| 30 | ␉␉␉*--q = *--p;␊ |
| 31 | ␉␉}␊ |
| 32 | ␉}␊ |
| 33 | #endif␊ |
| 34 | ␊ |
| 35 | ␉return dst;␊ |
| 36 | }␊ |
| 37 | |
