Re: I will need to acquire nuclear weapons shortly.

His debugger is only useful if you have the source code. If you're just
troubleshooting at the machine code level mame's built in debugger is your
best bet.

If you're working with the HDB Dos source code though then cocotowns mods
are quite useful

https://dave-br.github.io/mame-source-debugging-preview/

On Thu, Jan 22, 2026, 12:29 PM Mark Overholser via Coco <
[email protected]> wrote:

> On 01/22/2026 1:25 PM EST Juan Castro via Coco <[email protected]>
> wrote:
>
>
> I have a very weird bug in HDB-DOS/16: if I'm in reverse video mode and
> there's a BASIC program in RAM, RENUM (of all things) gives me a ?SN ERROR.
> I'll need to whip up MAME and use its debugger, like that fellow (whose
> name I forget) from the CoCo Town channel does.
>
> It's a bug people can live with, but COME ON.
>
> Juan Castro
>
> You will need to get the Modded MAME from CoCoTown, because I don't think
> those Additions have been added to the Main MAME Repo...   Tim Lindner
> should have some info on that...
>
> MarkO
>
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>

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