Lesson 27: Sprite Movement — Reading the Joystick

🔒 Coming Soon

This lesson is under development.

Part: Part 4: Sprites

What you'll learn:

• SWCHA — joystick input register
• Reading directions: up, down, left, right
• Updating sprite position each frame
• Movement speed and boundaries

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This lesson is part of Racing the Beam — 72 hands-on lessons in Atari 2600 assembly programming.