diff --git a/src/main.c b/src/main.c
index 122c1b5..979cd84 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,36 +1,21 @@
 #include <stdio.h>
 #define BYTE unsigned char
 
-// bit-mapped graphics memory is located $2000-$3FFF (8192-16383) 
-// and that the video RAM lies at $0400-$07FF (1024-2047). 
-// This makes it impossible to work with text and graphics at the same time
-
-// The C heap is located at the end of the program and grows towards the C runtime stack.
-
-// https://cc65.github.io/doc/c64.html#ss4.1
-// The C runtime stack is located at $CFFF (53247) and growing downwards.
-// Should be plenty of stack space between the top of the graphics memory
-
-
 short i;
-short x; // maybe if the ant does not go tooo far it could be an int..
+short x;
 short y;
-short direction; // 0 = right, 64 = up, 128 = left, 192 = down
+BYTE direction; 
 void setHiRes(void) {
     *(BYTE*)0xd011 = *(BYTE*)0xd011 | 0xb0 ; // Graphics on
     *(BYTE*)0xd016 = *(BYTE*)0xd016 & 240; //Multi color off
     *(BYTE*)0xd018 = *(BYTE*)0xd018 | 8 ; // Graphics to $2000
 }
 void clearHiRes(void) {
-    // Hi-res is turned on by setting bits 5 and 6 (bit 6 must be set in any event) 
-    // of register 17 of the VIC and clearing bit 4 of register 22. 
-    // Clear memory
     for (i =0;i< 8000; i++)
     {
         *(BYTE*)(0x2000+i) = 0; 
     }
 
-    // Clear colors 
     for (i =0;i< 1000; i++)
     {
         *(BYTE*)(0x400+i) = 0xf0; 
@@ -38,9 +23,6 @@ void clearHiRes(void) {
 }
 
 void fillHiRes(void) {
-    // Hi-res is turned on by setting bits 5 and 6 (bit 6 must be set in any event) 
-    // of register 17 of the VIC and clearing bit 4 of register 22. 
-    // Clear memory
     for (i =0;i< 8000; i++)
     {
         *(BYTE*)(0x2000+i) = 0xff; 
@@ -53,7 +35,6 @@ void setAndClearHiRes(){
     clearHiRes();
 }
 
-// need to think
 BYTE isPositionWhite(short x, BYTE y)
 {
     short ra = (320 * (BYTE)(y/8)) + (y & 7);
@@ -99,14 +80,10 @@ void moveForward() {
 
 void turnLeft(){
     direction = direction + 64;
-    if (direction >= 255) 
-        direction = 0;
 }
 
 void turnRight(){
     direction = direction - 64;
-    if (direction <0) 
-        direction = 192;
 }
 
 
@@ -121,11 +98,7 @@ void makeMove() {
     moveForward();
 }
 
-unsigned short line;
-unsigned short foo; 
-unsigned short j; 
 int main(void) {
-
     setAndClearHiRes();
     x = 160;
     y = 100;
@@ -134,8 +107,5 @@ int main(void) {
     {
        makeMove();
     }
-
     return 0;
-
-}
-
+}
\ No newline at end of file