Paul Mackerras fb8f3da128 Give exceptions a separate path to writeback ...

This adds separate fields in Execute1ToWritebackType for use in
writing SRR0/1 (and in future other SPRs) on an interrupt.  With
this, we make timing once again on the Arty A7-100 -- previously
we were missing by 0.2ns, presumably due to the result mux being
wider than before.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

2020-04-03 17:03:18 +11:00

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