Subj : Debugging 16 bit dos programs
To   : Nelgin
From : Bencollver
Date : Fri Jul 21 2023 08:54 am

  Re: Debugging 16 bit dos programs
  By: Nelgin to All on Fri Jul 21 2023 05:17:38

NE> I've been looking for a utility that will let me step through a dos
NE> program and look at the instructions while also being able to see what
NE> is displayed on the screen. I've not had much luck in finding anything
NE> that'll do the job and open to suggestions if anyone knows of something
NE> that'll do the job.

Just brainstorming:

1) Use a serial port connected to a terminal emulator

DOS console:
ctty com1

Terminal emulator:
debug.com prog.exe

2) Dosbox debugger

https://www.vogons.org/viewtopic.php?t=3944

3) Bochs debugger

https://wiki.osdev.org/Bochs#Bochs_debugging_facilities

I have also seen utilities that support multi-headed PC configurations,
commonly a combination of CGA and Hercules adapters.  Unfortunately, i
do not remember which debugger supports that.
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