[myhdl-list] mydhl and cver interactive

[Terry B. <tt...@ve...>]

I have been using myhdl with the cver simulator all running under 
cygwin.  It would be really cool to be able to access the interactive 
debugger with cver from python code.

Briefly, I would like to be able to use sim.run(time) to run the 
simulator for a time (I can do this now), then poke about within the 
verilog simulation using cver interactive, then run again from Python.

Currently, I can drop into cver interactive only when a $stop is 
executed within the verilog code, and once I am in cver interactive a 
$finish must be executed before I return to the python code.

I have built a little interactive monitor for my simulation using the 
cmd module from Python, and this is nice, but I want to be able to send 
commands to cver interactive and read the responses from with Python.  I 
played a bit with using popen2 to run cver, but cver behaves quite 
differently when connected to a pipe rather than "real" stdin (i.e. 
tty), and I didn't have a lot of success.

Anybody have an idea if this is a huge amount of work, or not so big if 
I only knew what I was doing??

Thanks for the help.

Terry Brown
Tyzx, Inc.