Add errors

and prepare for file menu more
and fix that you can't go left right when going up down

source/utils/utils.c

@@ -1,5 +1,6 @@
 #include "utils.h"
 #include <string.h>
+#include <utils/types.h>
 #include <mem/heap.h>
 
 char *CpyStr(const char* in){
@@ -8,4 +9,15 @@ char *CpyStr(const char* in){
     out[len] = 0;
     memcpy(out, in, len);
     return out;
+}
+
+void MaskIn(char *mod, u32 bitstream, char mask){
+    u32 len = strlen(mod);
+    for (int i = 0; i < len; i++){
+        if (bitstream & 1)
+            *mod = mask;
+        
+        bitstream >>= 1;
+        mod++;
+    }
 }

source/utils/utils.h

@@ -1,3 +1,5 @@
 #pragma once
+#include <utils/types.h>
 
-char *CpyStr(const char* in);
+char *CpyStr(const char* in);
+void MaskIn(char *mod, u32 bitstream, char mask);