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Fix controller FSM's XIF commit tracking signals (#610) #611

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Ensure that the controller FSM's XIF commit transaction tracking
signals are reset every time a new instruction enters the EX stage
(now ensured by simply resetting these signals anytime the EX stage is
ready). Fixes #610.

Ensure that the controller FSM's XIF commit transaction tracking
signals are reset every time a new instruction enters the EX stage
(now ensured by simply resetting these signals anytime the EX stage is
ready).  Fixes openhwgroup#610.

Signed-off-by: Michael Platzer <michael.platzer@hotmail.com>
@Silabs-ArjanB Silabs-ArjanB self-requested a review July 21, 2022 12:32
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@michael-platzer Thank you for reporting the issue and fixing it at the same time. I do however not yet understand the failure scenario itself, see my question in #610

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[XIF] The controller FSM's XIF commit tracking signals sometimes fail to be reset
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