FIX: `lf visa2000` - identified unknown nibble in checksum. Is not checksum, but...

[proxmark3-svn] / armsrc / string.c

diff --git a/armsrc/string.c b/armsrc/string.c
index cc71276ce2c39f5416e9bd364c9926f68a41e05e..acb5a46049a9cbf342b483b4da8025f27ae6ed58 100644 (file)
--- a/armsrc/string.c
+++ b/armsrc/string.c
@@ -7,11 +7,9 @@
 //-----------------------------------------------------------------------------
 // Common string.h functions
 //-----------------------------------------------------------------------------
-
 #include "string.h"
-#include <stdint.h>
 
-void *memcpy(void *dest, const void *src, int len)
+RAMFUNC void *memcpy(void *dest, const void *src, int len)
 {
        uint8_t *d = dest;
        const uint8_t *s = src;
@@ -33,7 +31,7 @@ void *memset(void *dest, int c, int len)
        return dest;
 }
 
-int memcmp(const void *av, const void *bv, int len)
+RAMFUNC int memcmp(const void *av, const void *bv, int len)
 {
        const uint8_t *a = av;
        const uint8_t *b = bv;
@@ -48,6 +46,11 @@ int memcmp(const void *av, const void *bv, int len)
        return 0;
 }
 
+void memxor(uint8_t * dest, uint8_t * src, size_t len) {
+   for( ; len > 0; len--,dest++,src++)
+       *dest ^= *src;
+}
+
 int strlen(const char *str)
 {
        int l = 0;