Zenith Z160 Luggable PC aquired

[Sam O'nella]

I'm not sure specifically on the z-160 but my z-150 had it (iirc and it's been a while ctrl+alt+ins or ctrl+alt+enter) I think put you in the diagnostic rom which had a debugger.
Curiously though i dont know if that is a hardware function or a feature of zdos?
-------- Original message --------From: Fred Cisin <cisin at xenosoft.com> Date: 12/11/16  6:59 PM  (GMT-06:00) 

Don't those machines have a debugging monitor in ROM?  (something that IBM 
does NOT)  Otherwise DEBUG.COM should work.