projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a71a29de YS |
1 | ;;; strncpy.S |
| 2 | ||
| 3 | #include <asm/linkage.h> | |
| 4 | ||
| 5 | .text | |
| 6 | .global strncpy_from_user | |
| 7 | ||
| 8 | ;;; long strncpy_from_user(void *to, void *from, size_t n) | |
| 9 | strncpy_from_user: | |
| 10 | mov.l er2,er2 | |
| 11 | bne 1f | |
| 12 | sub.l er0,er0 | |
| 13 | rts | |
| 14 | 1: | |
| 15 | mov.l er4,@-sp | |
| 16 | sub.l er3,er3 | |
| 17 | 2: | |
| 18 | mov.b @er1+,r4l | |
| 19 | mov.b r4l,@er0 | |
| 20 | adds #1,er0 | |
| 21 | beq 3f | |
| 22 | inc.l #1,er3 | |
| 23 | dec.l #1,er2 | |
| 24 | bne 2b | |
| 25 | 3: | |
| 26 | dec.l #1,er2 | |
| 27 | 4: | |
| 28 | mov.b r4l,@er0 | |
| 29 | adds #1,er0 | |
| 30 | dec.l #1,er2 | |
| 31 | bne 4b | |
| 32 | mov.l er3,er0 | |
| 33 | mov.l @sp+,er4 | |
| 34 | rts |