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6502 Hardware: Connecting To The SN76489A Programmable Sound Generator

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The 6502 Single Board Development System

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Modular Monitor: Dynamic Dispatch and Code Cleanup

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Discrete VGA Graphics Adapter: Time Base

Part 1: VGA Time Base Generation Ever since I started designing computers, I knew I needed to come up with some kind of graphics interface. Preferably one that didn’t require specialty hardware, licensing, or only worked with very old displays. There is one, and only one, interface that does the job: VGA. Despite being completely…