Hi Carsten,

> I agree with Robert that DEBUG is a very essential tool, because it can
> be used to bootstrap other binaries. And yes, I do such stuff, typing in
> assembly into DEBUG to patch binaries or even to create new program
> binaries.

+1

> My use case is not to recover, but to *use* vintage computer. I use
> SvarDos on 8088/8086/286 type machines, and FreeDOS on 386/486 type
> machines.

+1

> But that has no relevance to the question. If DEBUG is useful for the
> user base of SvarDos, as small as that user base might be, it should
> stay.

+1

> If it is not useful for the SvarDOS users, it should go.

+1

> DEBUG can be helpful in bootstrapping an SvarDos install. I sometimes
> have used such tool on vintage computer events, where I only had
> Internet on my phone, and no network connection to the vintage machine
> (an no "modern" machine in reach).

+1

> In these situations I was able to use DEBUG to type in small assembly
> language scripts that I found on some website (reading on the phone,
> typing on the old machine), or adjusting BIOS or DOS parameter tables to
> prepare for an install (or even patch MBR/Partition Tables on disk).

And a last "+1". ;-)

> If the current DEBUG binary is too heavy (in disk size), maybe there is
> another (similar) tool that is free/open-source and would be a light
> weight replacement.

I'm not aware of any, but I didn't look for lately.

> The functions that I would use from such a tool:
> 
>  * dump memory (hex)
>  * disassemble 8086/80286 code
>  * assemble 8086/80286 code
>  * read/write sectors (via BIOS)
>  * save COM files
>  * save BIN files (memory dump)
>  * trace execution
>  * execute code

The really last "+1".

> Creating the smallest DEBUG clone that implements the functions above
> might be an interesting challenge.

Feel free to accept that challenge! *g*
But probably it might be enough, to use the existing DEBUG and strip
some features off.

Cheers,
Robert
-- 
              +++ BTTR Software +++
     Home page: https://www.bttr-software.de/
DOS ain't dead: https://www.bttr-software.de/forum/

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