Using latest binary for Win64 Mame 0.268 is fine here - yes complains about CRC but does not care - do you have Mame 0.25x format ROMS? ColEm 5.6 for me is fine also. Colem56.png d:\mame0268>mame colecop dkong r72114a_8317.u2 WRONG CHECKSUMS: EXPECTED: CRC(d393c0cc) SHA1(160077afb139943725c634d65398...

Donkey Kong also works under Mame and ColEm 5.6

For Mame rename the BIOS to r72114a_8317.u2 and use colecop machine.

For ColEm on whatever platform - just rename to COLECO.ROM.

From looking a little deeper today - it seems the ROM is significantly different from the original colecovision. These offsets are fixed as part of the OS - but line up with the dumped laser.bin LASER.BIN Offset 0x0069 == 0x3C == Country byte (America == 0x3C, Europe/Japan == 0x32) Offset 0x006A == ...

It looks like the lower 4K dump has bit 5 set on, when compared to ntsc and pal colecovision roms. Using binary compare, NTSC (313_10031-4005_73108a.u2) 00000003: C3 E3 00000004: 6E 6B 00000005: 00 3B 00000008: C3 E3 00000009: 0C 2C 0000000A: 80 A0 00000010: C3 E3 00000011: 0F 2F 00000012: 80 A0 000...

So sorry to read of the damage to the ROM - hopefully you can get a good copy to repair one of the rare remaining adapters.

So exciting! I'll be here every day now asking - is it here yet!

Hope it all goes well !!

Would it be safer to dump the adapter BIOS through software? https://www.8bitclassics.com/product/colecovision-8k-16k-32k-pc-board/ Here you can get a DIP socketed board for less than 10USD - so possibly cheaper local deals. More than happy to knock up the Z80 code required to do a similar job to th...

Looking at the colecovision adapter - it appears that the sound solution is just decode at correct speed then output the sound wave to the Salora. It would be interesting to see how non-BIOS colecovision ROMs would do - for example any of the SpectraVideo ports like Spectron. Colecovision BIOS is ve...

I think any information is good - even when it's not what you expect :shock: Can you remember how the Colecovision adapter boots on the Salora? Does it hook into the boot sequence as a CV cart, or is it more like a disc interface, where Solara BIOS jumps to the vector? From the pictures, I assume th...

I would imagine you would need to rely on at least Pico doing the Z80 emulation - that way no BIOS to play with :) Z80 I/O is to port addresses - which the emulation could pick up OUT, then forward to creatiVision memory address - reading likewise for IN. Unfortunately MSX uses an AY-3-8910 - so som...