🚀 go-pugleaf

In article <1992Sep4.233121.24295@njitgw.njit.edu> dic5340@hertz.njit.edu (David Charlap) writes:

>OK. I normally debug code by single-stepping it through functions.
>This clobbers a PM program if you do it on the same machine, since
>single-stepping is the same as placing a breakpoint at every line.

You can still do it on a single machine with a PM program as long as you
don't switch back to the PM screen while single stepping through your
program's message procedure while it is processing a user input (mouse or
keyboard) event.

I did this all the time - including single stepping through my code.
Normally, to help improve performance I turned off screen swapping anyway, so
while I was single stepping through I was just in the debugger's text session,
but there's no problem in general.

The only hard requirements were/are that the debugger itself couldn't be PM
(until IPMD), and that you couldn't switch manually to PM (Ctrl-ESC) while
stopped in the middle of a message procedure for a user input message.

--
-- David
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