diff options
Diffstat (limited to 'libc/string/cris/memcpy.c')
| -rw-r--r-- | libc/string/cris/memcpy.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libc/string/cris/memcpy.c b/libc/string/cris/memcpy.c index 0cce37a30..cc14188b8 100644 --- a/libc/string/cris/memcpy.c +++ b/libc/string/cris/memcpy.c @@ -88,8 +88,8 @@ void *memcpy(void *pdst, register char *dst __asm__ ("r13") = pdst; register char *src __asm__ ("r11") = (char *) psrc; register int n __asm__ ("r12") = pn; - - + + /* When src is aligned but not dst, this makes a few extra needless cycles. I believe it would take as many to check that the re-alignment was unnecessary. */ @@ -162,12 +162,12 @@ void *memcpy(void *pdst, ;; Restore registers from stack \n\ movem [sp+],r10" - /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n) + /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n) /* Inputs */ : "0" (dst), "1" (src), "2" (n)); } /* Either we directly starts copying, using dword copying - in a loop, or we copy as much as possible with 'movem' + in a loop, or we copy as much as possible with 'movem' and then the last block (<44 bytes) is copied here. This will work since 'movem' will have updated src,dst,n. */ |