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Old 16 September 2022, 09:02   #56
Gorf
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Join Date: May 2017
Location: Munich/Bavaria
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Quote:
Originally Posted by nonarkitten View Post
32-bit CPUs would only have Expansion Chip without a new Fat Gary or Gayle and the Base Chip RAM would still use motherboard RAM. Fat Gary or Gayle would be 'hacked' to force 16-bit mode for chip (essentially disabling the MUX) and then could open up all 16MB.
With 70ns FPM on board double CAS should be possible for these operations, meaning Gary would take 32-bit from/to CPU and make two consecutive 16-bit writes/reads on ChipRam... no?
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