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-   -   Emulation of non-Commodore bridgeboards (x86) (http://eab.abime.net/showthread.php?t=94184)

B14ck W01f 11 September 2018 15:23

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

Toni Wilen 11 September 2018 19:17

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.)

Hewitson 12 September 2018 15:56

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.

Toni Wilen 12 September 2018 16:09

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..

nogginthenog 12 September 2018 20:10

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 :cool


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