Jean-Philippe Bernardy: C versions of memset() and memcpy() for archs with

no asm optimized versions.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5550 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 19 insertions, 0 deletions

diff --git a/firmware/common/string.c b/firmware/common/string.c
new file mode 100644
index 0000000..373aa92
--- /dev/null
+++ b/firmware/common/string.c
@@ -0,0 +1,19 @@
+/* For archs that lack assembly optimized versions of those */
+
+#include "string.h"
+
+_PTR _EXFUN(memset,(_PTR, int, size_t));
+
+_PTR memset(_PTR data, int val, size_t count)
+{
+    for (int i=0; i < count; i++)
+        ((char*)data)[i] = val;
+    return data;
+}
+
+_PTR memcpy(_PTR dst, const _PTR src, size_t count)
+{
+    for (int i=0; i < count; i++)
+        ((char*)dst)[i] = ((char*)src)[i];
+    return dst;
+}