fixed memcpy (it coppied too much)
Stefan Schuermans commited on 2012-03-24 22:41:56
Showing 1 changed files, with 4 additions and 3 deletions.
- fw/memcpy.c 7e0cce1..e480938
| ... | ... |
@@ -18,12 +18,13 @@ void memcpy(void *dest, const void *src, unsigned int sz) |
| 18 | 18 |
if (((unsigned int)dest & 3) == 0 && ((unsigned int)src & 3) == 0) {
|
| 19 | 19 |
dest4 = dest; |
| 20 | 20 |
src4 = src; |
| 21 |
- for (sz4 = sz >> 2; sz4 > 0; --sz4) |
|
| 21 |
+ sz4 = sz >> 2; |
|
| 22 |
+ for ( ; sz4 > 0; --sz4) |
|
| 22 | 23 |
*dest4++ = *src4++; |
| 24 |
+ // there might still be a few bytes to copy now |
|
| 23 | 25 |
dest = dest4; |
| 24 | 26 |
src = src4; |
| 25 |
- sz -= sz4; |
|
| 26 |
- // there might still be a few bytes to copy now |
|
| 27 |
+ sz &= 3; |
|
| 27 | 28 |
} |
| 28 | 29 |
|
| 29 | 30 |
// safe and slow fallback: copy byte-wise |
| 30 | 31 |