11 September 2018, 14:23 | #1 |
m68k all the way
Join Date: Aug 2011
Location: Koalaland
Posts: 523
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Emulation of non-Commodore bridgeboards (x86)
Thank you for emulating the bridgeboards made by Commodore (A1060, A2086, A2286, A2386), but I would like to see bridgeboards not made by C=. The link posted below has manuals for some of them, mainly Medusa, Emplant, and PC 286. But for those that do not have manuals, there are always the adverts.
http://amiga.resource.cx/dir/bridge |
11 September 2018, 18:17 | #2 |
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,515
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There is no useful technical, low level, hardware documentation, none at all, for non-Commodore bridgeboards. User manuals are totally useless.
Commodore bridgeboard emulation was only possible because Commodore boards' address space, IO registers etc are documented in A500/A2000 Technical Reference Manual. (Not the first time this has been asked.) |
12 September 2018, 14:56 | #3 |
Registered User
Join Date: Feb 2007
Location: Melbourne, Australia
Age: 41
Posts: 3,773
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That's not to say that other boards couldn't be reverse engineered. But it would be a waste of time and effort in my opinion.
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12 September 2018, 15:09 | #4 |
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,515
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Yes and yes.
They have PC-side only address space that is totally invisible to Amiga side and debugging and reverse-engineering would require use of PC and Amiga software at the same time, disassembling both m68k and x86 code and more.. |
12 September 2018, 19:10 | #5 |
Amigan
Join Date: Feb 2012
Location: London
Posts: 1,311
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Or worse. The ATonce+ 286 board has 512Mb of RAM on board. This is not accessible to the Amiga until something in the software enables it.
If you start the s/w then reboot you can AddMem() it |
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