commit 8220135362c02b5e4a5532a561c6c1bd4b4d1540
parent c396d065d3f5e5a0f966857d710a434a2f2db066
Author: rsc <rsc>
Date: Sun, 8 Mar 2009 21:38:30 +0000
xv6: use stosb for memset
Diffstat:
2 files changed, 4 insertions(+), 11 deletions(-)
diff --git a/string.c b/string.c
@@ -1,14 +1,10 @@
#include "types.h"
+#include "x86.h"
void*
memset(void *dst, int c, uint n)
{
- char *d;
-
- d = (char*)dst;
- while(n-- > 0)
- *d++ = c;
-
+ stosb(dst, c, n);
return dst;
}
diff --git a/ulib.c b/ulib.c
@@ -2,6 +2,7 @@
#include "stat.h"
#include "fcntl.h"
#include "user.h"
+#include "x86.h"
char*
strcpy(char *s, char *t)
@@ -35,11 +36,7 @@ strlen(char *s)
void*
memset(void *dst, int c, uint n)
{
- char *d;
-
- d = dst;
- while(n-- > 0)
- *d++ = c;
+ stosb(dst, c, n);
return dst;
}