diff --git a/src/lib/libc/string/memcmp.c b/src/lib/libc/string/memcmp.c
new file mode 100755
index 0000000..82edb4a
--- /dev/null
+++ b/src/lib/libc/string/memcmp.c
@@ -0,0 +1,28 @@
+#include <sys/types.h>
+#include <string.h>
+
+int memcmp(const void * dst, const void * src, size_t length)
+{
+    size_t x = length / 4;
+    size_t y = length % 4;
+    size_t i;
+    
+    for (i = 0; i < x; i++)
+    {
+	if (((unsigned long *)dst)[i] > ((unsigned long *)src)[i])
+	    return 1;
+	if (((unsigned long *)dst)[i] < ((unsigned long *)src)[i])
+	    return -1;
+    }
+    
+    for (i = 0; i < y; i++)
+    {
+	if (((char *) dst)[length-y+i] > ((char *) src)[length-y+i])
+	    return 1;
+	if (((char *) dst)[length-y+i] < ((char *) src)[length-y+i])
+	    return -1;
+    }
+    
+    return 0;
+}
+