IBM MCGA Gate Array Reverse Engineering

A developer has reverse-engineered the IBM MCGA—a graphics adapter chip from the nineteen-eighties—and published detailed technical documentation on GitHub. The MCGA was an early piece of IBM's graphics hardware that has long been a mystery to hardware enthusiasts and retro computing hobbyists. The documented findings could help preserve this vintage technology and deepen understanding of early PC graphics architecture, according to posts on Hacker News.

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