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Pixel by Pixel scrolling

HI...how to use hardware scrolling, and which port is it??(In mode 13h,using qbasic)


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  • : HI...how to use hardware scrolling, and which port is it??(In mode 13h,using qbasic)


    I'm not sure using hardware scrolling is a good idea in mode 13h since the screen takes up almost an entire segment. I think the only way to scroll effectively in mode 13h is to draw to the back buffer and then blast it to video memory. If you're using modeX then you can use hardware scrolling but that's a completely different beast.




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