mcontrol hit bit on a non-match

[Joe Rahmeh]

If a hart implements the hit bit of the mcontrol register, then what should happen to that a bit when there is no match.  On a match, the spec says that a 1 should be written to the hit bit.  On a non match should a 0 be written to the hit bit or should the hit bit be left unmodified?

[Tim Newsome]

The hit bit is only modified when a trigger hits (it is written to 1) or when the CSR is explicitly written.

Tim

On Tue, Jul 3, 2018 at 2:01 PM, Joe Rahmeh <joe.r...@gmail.com> wrote:

If a hart implements the hit bit of the mcontrol register, then what should happen to that a bit when there is no match.  On a match, the spec says that a 1 should be written to the hit bit.  On a non match should a 0 be written to the hit bit or should the hit bit be left unmodified?

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