IBM AT 5170 no longer works with the latest DMA changes
IBM AT 5170 no longer works with the latest DMA changes
Just tried the latest build of PCem (WX-SDL2) and the IBM AT 5170 no longer works with any configuration I've tried, even a bare bones one, like CGA and IBM VGA.
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SarahWalker
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Re: IBM AT 5170 no longer works with the latest DMA changes
Fixed in rev 1104.
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Greatpsycho
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Re: IBM AT 5170 no longer works with the latest DMA changes
I've tuned cpu_rom_prefetch_cycles value to when accessing 150ns mask-rom cycles. I think this is probably closer to real machines.
- Attachments
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- cpu.c.patch
- cpu_rom_prefetch_cycles value tuning patch.
- (1.08 KiB) Downloaded 290 times