C64 Assembly - TIPS 3 - Amaze Maze

C64 – TIPS 3 | The Famous BASIC Maze and 6502 Assembly Welcome to a new collection of tricks for the legendary Commodore 64! In this episode we explore one of the most famous programming routines in home computer history – the legendary infinite maze created using only two characters. We start with the famous BASIC line: 10 PRINT CHR$(205.5+RND(1)); : GOTO 10 and discover how random numbers create endless maze patterns across the screen. After that, we move to 6502 assembly language and show two different ways to recreate the same effect. The first method uses the C64 KERNAL character output routine at address $FFD2 and the SID chip noise generator for random values. The second method writes directly to screen memory, achieving an incredible speed while continuously generating new maze patterns. In this episode you will learn: How the famous C64 BASIC maze works How to use the SID noise generator for random numbers The difference between PETSCII and screen character codes Why direct memory access is much faster How pointers and indexes work in 6502 assembly At the end, there is also a small challenge – a short assembly program that you can analyze and discover what it does. Enjoy this new C64 trick and continue exploring the power of the legendary 6502 processor! Visit us at techfokus.rs Best regards! #C64 #Commodore64 #6502Assembly #AssemblyLanguage #RetroComputing #RetroProgramming #BASICProgramming #PETSCII #SIDChip #MazeGenerator #MachineCode #8bitComputing #VintageComputers