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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.

And yet again, not working in MAME 0.274.

Still broken in MAME version 0.273.

I've made my own fork of this version of NABULIB (currently most recent), for NthPongWars customisations (like removing that unnecessary 2K text buffer if I need memory space). But for now, I've just put in the (void) function declarations from LinuxPlayGround's fork (minus ones where void was added ...

Sounds like failing electronics which only work when warm. You did fix the fan, and more relevantly reseated the chips. Try reseating them again.

Also the circuit board may flex when warming up, affecting connections. Does it crash if you manually flex the board while it is running? Make sure to ...

I tried the DEBUG_VDP_INT option in NABU_LIB, which flashes the Alert light when you miss a frame. It has a logic bug and leaves the light on all the time!

To fix it, add a "vdpIsReady = false;" right after your call to vdp_waitVDPReadyInt(), because that function forgets to reset the flag after ...