Commander X16

I'm scratching my head, wondering why there's no Kindle format.

Maybe I missed something, but this sounds like you're restricting the Z80 system to 32KB. Why? If it's to gate the CPLD, that's not a very CP/M-like method. The typical CP/M boot sequence actually overlays a boot ROM over the first page of RAM. The system boots to address 0, and the boot ROM loads t...

If you're going to use the STP instruction to break into the debugger on the emulator, you need to use the -debug command line switch to enable debugging.

The emulator's documentation explains this, along with how to use the debugging screen.

https://github.com/X16Community/x16-emulator

This is the R48 release of the ROM and emulator. Emulator: https://github.com/X16Community/x16-emulator/releases/tag/r48 ROM: https://github.com/X16Community/x16-rom/releases/tag/r48 Update instructions: https://x16community.github.io/faq/articles/update%20guide.html (This will be updated for R48. F...

That's pretty similar to what I've been thinking. In my case, I would use a UART to talk to the RP2040, which could then run any emulation firmware you want.

https://www.computesgazette.com/subscri ... ro-trends/

Looks like their first issue will be July.

In fairness this design really means you are plugging an entire Z80 computer into a card and hijacking the X16's IO for it's use. It would work and would even be economically feasible by todays standards. But it would have been complexly silly back in the day. Given that the Z80 has been discontinu...

In fairness this design really means you are plugging an entire Z80 computer into a card and hijacking the X16's IO for it's use. It would work and would even be economically feasible by todays standards. But it would have been complexly silly back in the day. Given that the Z80 has been discontinu...

Yeah, since this is not a completed tutorial or guide, we're going to move it to the WIP section for now. Once this is complete, then it would be ready to post in the Guides And Tutorials. Don't know if you've looked at any of OSK's work Tom. But the book is almost there. I know he's gotten a first...

Yeah, since this is not a completed tutorial or guide, we're going to move it to the WIP section for now. Once this is complete, then it would be ready to post in the Guides And Tutorials.