Tag Archives: interrupt

The myth of the vertical retrace interrupt

Posted on December 6, 2022 by Scali

This is a draft from March 18th, 2019. We’re slowly cleaning out the backlog. The few remaining drafts are going to take more time to work into an article though, as actual code or configuration is required to work out … Continue reading →

Posted in Oldskool/retro programming | Tagged EGA, IBM, interrupt, IRQ, IRQ2, IRQ2/9, IRQ9, PCjr, raster interrupt, Tandy, Tandy 1000, vertical retrace, vertical retrace interrupt, VGA, vsync | 2 Comments

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Tag Archives: interrupt

The myth of the vertical retrace interrupt

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