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I was wondering how to get output redirection to work in non CP/M mode, thought of asking, but first looked at the Telnet source code, and found that the magic words to search for are "TCP Server" (which is in RetroNET-FileStore.h). Anyone already used this to write some debug printf() replacements ...

Also had a look at the source code. Nice small library for TMS and CPM and utility functions.

By the way, can you store binary files in CP/M? That whole control-Z end of file suggests maybe not, and I wasn't able to get Z88DK's glue code to not add CRLF and otherwise mangle binary data. Would be ...

Nice and simple yet tough. And two executables fit in a 7K .zip file! And it has sound, and very smooth speed.

I have it working in the most recent MAME. I think you just have to rename the nabu_kb directory as nabupc_keyboard.

Same here, lots of 6502 code at the time, with only a bit of Z80 for a 1980 summer job at Dypix / Dy-4 helping do cursor codes for a serial terminal. I really only got familiar with Z80 when recently working on Nth Pong Wars for the Nabu (on hold until July 2025 when I have some time). Oddly it’s ...

Good find! I had to discard a dishwasher after only a few years because they used iron rather than copper wire in the ribbon cable, and the plastic around it wasn’t steam proof, and it rusted through! Next one was a different dishwasher brand.

Do you notice printf with z88 sometimes has strange output? I find that happens but I haven’t raised an issue with their forum yet. I haven’t done enough tests to understand why it’s happening.


Turns out that the library code that converts 16 bit integers to ASCII calls some utoa assembler code ...

That’s a very useful tip, should speed up CP/M disk load times greatly! Which happens every time I do a test run of NthPongWars.

You're right, it's the MAME serial port settings. I had 111900 baud and 1 stop bit. Changing it to 2 stop bits fixed it! MAME 0.275 on Fedora Linux.

Theoretically you could specify larger baud rates, since DJ's adapter just sees a TCP connection which doesn't have baud rates. But unfortunately, the ...

MAME still broken in version 0.275.