Hi everybody. If you don't actively work on ISA descriptions or the
parser, feel free to ignore this email. I've been working on the parser
to better integrate the recent PC changes, and it's been useful to turn
on the backtrace feature of the parser by setting debug=True at the top.
This is a lot better than having it buried in the script (thanks, Ali)
but it's still fairly easy to forget to turn it back off when generating
patches, etc. Would anyone object to plumbing a scons variable through
scons and into the parser to affect that behavior? I'm not sure whether
a command line variable or -- style option would be best for scons, but
I'm leaning heavily towards something like --debug for the parser
itself. This isn't high priority and I may never bother actually
implementing it, but I wanted to see if anyone violently apposed for
some reason, maybe the added complexity and leaking of parser control
knobs into the wider world of scons.

Gabe
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