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stephen_usher wrote: ↑12 Mar 2024 10:14 Sorry, here's a new one https://discord.gg/nVT4ZcXetD

Thanks.

stephen_usher wrote: ↑14 Feb 2024 13:04 Just in case you crazy people want a newfangled chat thingy I've set up a Discord server for you all to join:

https://discord.gg/mXnNM3QN

Other machines have them so why not the Memotech?

The invite has expired.

There is little point in emulating the MTX control ROMs, the MTX computer was just an interface to a really complex piece of non-computer hardware, making extensive use of analogue and digital electronics for video frame capture and manipulation. Unless you are going to emulate that, there is no po...

Ignoring the part page, 10 x 48k + 16k would explain the 496k reported Thanks, makes sense. I think I'm done with this round of MTX improvements, they'll be available in next week's MAME release. I'll probably take a look at the CFX-II in the coming weeks, for the 80 column functionality. There's s...

Not masses you can do with it, but yes Fuzix will boot to the VDP Interesting to see you have 784K RAM in there, and is reported correctly by Fuzix. What does CFX report on real hardware with 784K? My emulation reports only 32K. If I run with something like 512K then CFX reports the correct amount,...

In practice. reading an unimplemented port usually returns whatever value was last on the data bus. If the port read is using an IN A,(ADDR) instruction, then that is the second byte of the opcode, i.e. the address of the port to read. There are a few places in the CFX-II ROM which rely upon this b...

Martin A wrote: ↑16 May 2022 23:52 Not masses you can do with it, but yes Fuzix will boot to the VDP

Looks like it was detecting a CFX-II by reading 00 from port 60, now fixed to read FF from unmapped ports.

I'm trying the Fuzix image that comes with the fork of MEMU, but clearly needs more than a CFX. It seems to be setting up a 6845 on ports 38/39 which is the original 80 column card. Then writes lots to port 60 which is the Parallax Propeller in the CFX-II, so looks like I'll need to emulate this too...

Finally, I can now play HexTrain using the CFX:

The write up of the early magrom build is on Dave's site as is the rom source, most of the later changes are discussed on the thread here. However: ... Thanks, was relatively simple to implement. 0009.png What's the situation with the ROMs for the 'Reflex' Video Wall? They're password protected so ...