🚀 go-pugleaf

OK, i saw C. Mcmanis's exciting note about catching errant processes 
using cpr. Time to find that last bug in amigatcp, i thought. 
So, first i tried:
cpr -n net
as per the manual's description of -n. 
cpr tells me that -n is not a valid switch. hmmm.
Next, i try:
cpr net
then, when i get to starting up main, i 
detach "net"
which detaches fine. Later i 
attach "net"
which does not work too well. which is to say, it thinks net is still
at main(), not at where it really is, and if i say 'trace' then 
everything just locks up, and i have to reboot.
Is there anyway to interrupt a running program and have it go
to cpr? All ^C gets me now is a visit to the guru (#3). arg.
   any help greatly welcome.
   BTW amigatcp is at comp.sources.amiga. here's hoping it makes it
this time!
ron