const nomodify byte* SCREEN = (byte*) 1024
const byte SIZEOF_BOOL = 1
const byte SIZEOF_BYTE = 1
const byte SIZEOF_DWORD = 4
const byte SIZEOF_POINTER = 2
const byte SIZEOF_SIGNED_BYTE = 1
const byte SIZEOF_SIGNED_DWORD = 4
const byte SIZEOF_SIGNED_WORD = 2
const byte SIZEOF_WORD = 2
void main()
byte main::idx