On 03/07/2018 08:48, Baltissen, GJPAA (Ruud) wrote: > Except the BIOS, there isn't any software around that needs the original 6525. The only software that is around at all is the original MSDOS 1.25. And Michał already proofed that 3.21 runs w/o any problem. So any software that runs on the original card should run on the 8255 card as well. I don't see_any_ reason why it shouldn't. If someone wanted to port a different OS (DOSPLUS for example) without forcing to use a different ROM and not wanting to use the exact same mechanism as the current ROM, they may try to access the 6525 directly. Maybe the 8088 card is a lost cause and there has been an unfixable fracture, I don't see that copying that over to a graphics card is a good idea. It's likely to be even more useful to talk directly to the card, rather than going through a ROM interface that might not be optimal.Received on 2018-07-03 16:02:51
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