Started by konc, 12:02, 22 May 22
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Quote from: dragon on 12:23, 22 May 22Look at this page of how video subsystem works:http://bread80.com/2021/06/03/understanding-the-amstrad-cpc-video-ram-and-gate-array-subsystem/...And you have the candidate ic list. I first try the 74ls153. The multiplexer group that select between z80 and crtc. As it appears that the gate array is writing things that don't should be there(wrong address?). Al thought you can start a game first that not use firmware calls to ensure always happend.
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