Re: PC20-III behaves strange with a "new" BIOS

From: Michał Pleban <*lists_at_michau.name*> Date: Tue, 09 Apr 2019 20:03:49 +0200 Message-ID: <5CACDE85.2020702_at_michau.name> · lists_at_michau.name

Ruud_at_Baltissen.org wrote:

> Only today I found the part that determines how many drives are in 
> the machine. The only thing I can (I think) is to compare all 
> instructions one by one just in case my tool (or better: I as the 
> programmer) made a mistake.

What I would normally do would be to step through this code with a
debugger, once with a VGA card and once without, and see where they differ.

Regards,
Michau.