Quote:
Originally Posted by nonarkitten
Amiga 3000, 1200 and 4000 will only use on-board chip RAM. For Amiga 3000's that means popping out your slow DRAM and sticking in some 70ns FPM memory. I checked, they're plenty available. On these versions, the pSRAM may be omitted since there's no way to open > 2MB on them.
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But you could use the pSRAM as "REU" for ChipRAM:
quickly exchange parts of the on-board ChipRAM.
On the A3000 you could still feed Denise (or replacement) from the pSRAM since it is still only 16Bit.
On all three you could feed Paula this way.
Potential use-cases:
double buffering were the active shown part is in the trans-2MB region, and a quick copy operation every frame from sub2MB to trans2MB...
Or as a WHDload feature to quickly change between game and Workbench, by restoring the wanted ChipRAM contend between one frame...
Or is this a stupid idea?