On 07/03/2018 16:23, Mia Magnusson wrote: > Is it just as simple as screen + color ram is read in the "CPU" > phase of the clock cycle ("bad line" in C64 lingo), and char data / > bitmap data and sprite data is read during the "VIC" phase of the clock > cycle? I believe so. VIC is quite predictable. > I really don't understand why there is a need to split theese cycles > though. The designer thought it was a neat solution at the time? They needed to be able to differentiate character generator rom and screen fetches. The c64 does it with magic addresses, which is quite limiting itself. Message was sent through the cbm-hackers mailing listReceived on 2018-03-07 18:05:24
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