[Libre-soc-bugs] [Bug 475] cxxsim improvements

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Tue Sep 29 22:33:10 BST 2020


--- Comment #19 from Cesar Strauss <cestrauss at gmail.com> ---
(In reply to Cesar Strauss from comment #18)
> However, the compunit tests seem to wait for a result that never comes.

This is the problem:

self.shadown_i = Signal(name="cu_shadown_i", reset=1)

On pysim, it keeps high, even if not driven by the simulation process.

On cxxsim, it stays low.

So, shadown_i is kept active, the result is never written, and the process
keeps waiting for a result that never comes.

Actually, if I explicitly set shadown_i high, most of the compunit tests begin
to pass already.

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