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Old 03 March 2010, 01:49   #46
Photon's Avatar
Join Date: Nov 2004
Location: Hult / Sweden
Posts: 4,501
Except the C64 had some extra registers for common game/VDU features, such as scrolling.

I don't know if there's a link, necessarily - most home computers had no raster interrupt or copper to time things. On the MSX, Spectrum, I could go on... any tricks pulled on the VDU was pulled with CPU-cycle-timing calculations or wait loops from HSYNC signal or similar.
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