11 lines
617 B
Markdown
11 lines
617 B
Markdown
# Rolling
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A mixed display mode demo for the Apple IIe, written in 6502 Assembly
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Uses $C019 on the IIe to detect the VBL interval and some cycle counting to switch display modes during the screen draw for a mix of low-res and text modes.
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# Scroll
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I had some fun working out how quickly to scroll low res text and keep it legible. Each row of text scrolls 1 pixel left when the one above it has scrolled all the way across the screen. The top scrolls as fast as I could manage, and the bottom one, well, it will eventually.
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# Fastscan
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A little demo of swapping text pages and graphics/text mode on a rolling delay.
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