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pser1 wrote: ↑Sat Mar 21, 2020 2:49 pm What will you need in order to add this module to MAME?

Just some test cases. The V9958 is already emulated for use in the MSX2, so it's just a case of adding a new Workpak2+ device and mapping the V9958.

Who actually has these Beta OS-9 floppies? Could they be re-imaged in a more suitable format such as HFE?

Does the Wordpak2+ need emulating? Could someone post some floppy images to test with?

One thing that worries me though is that in later versions of Mame, I cannot load tapes with machine code programs as they just stop loading... Nigel, is that known or should I report it on MameTesters? I wasn't aware of that, cas or wav? This reminds me that extended cas is still not implemented. ...

Hello, why Speed ​​Racer works well with XRoar & not with MAME ?! ... I'd say this is because XRoar is a dedicated Dragon emulator that provides state of the art low-level emulation, whereas MAME is more general-purpose (and much older, too). If someone can determine why it's failing in MAME then I...

robcfg wrote: ↑Sun Nov 24, 2019 2:02 pm Which version of Mess are you using?

He has your colour improvements so must be fairly recent, I used latest git obviously.

Sebiohazard wrote: ↑Sat Nov 23, 2019 10:10 am But with MESS unfortunately I have this screen... do you know why it does not work ?

Unfortunately this looks like a bug in MAME. Does anyone have an idea as to what Speed Racer may be doing to cause this issue?

My question is does the EXEC &HE002 directly execute the same &HE002 as I can PEEK from BASIC (which is just full of 0x7E), or does some strange decoding happen which makes the EXEC command somehow get routed to the &HC000 location? The ROM is mirrored, so you should see the ROM at &C000 and &E000.

I did find another online review of the board in PCN - courtesy of a handwritten note on the scanned Sprite documents. https://ia800808.us.archive.org/13/items/PersonalComputerNews/PersonalComputerNews058-21Apr1984.pdf Nice review, and maybe worth archiving the demo program as it's probably the onl...

MAME / MESS can't load these files natively, but a version with the debugger enabled I can drop to the debugger console and use the load command to load the file at load address - header len with something like : I could easily add native support for these using the Quickload option. Can you post a...