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6 Commits

Author SHA1 Message Date
Philippe Sauter cbdf9b2f9c peepopt: handle empty src-attribute in shiftadd 2024-01-31 13:07:01 +01:00
Philippe Sauter 7f8b6dd982 peepopt: delete unnecessary comment in shiftadd 2024-01-30 09:51:21 +01:00
Philippe Sauter 68a9aa7c29 peepopt: handle offset too large in `shiftadd` 
If the offset is larger than the signal itself,
meaning the signal is completely shifted out,
it tried to extract a negative amount of bits from the old signal.

This RTL pattern is suspicious since it is a complicated way of
arriving at a constant value, so we warn the user.
 2024-01-26 16:44:30 +01:00
phsauter 3618294bac peepopt: Add assert of consistent `shiftadd` data 2023-11-06 16:35:00 +01:00
phsauter 9ca57d9f13 peepopt: fix and refactor `shiftadd` 
- moved all selection and filtering logic to the match block
- applied less-verbose code suggestions
- removed constraint on number of bits in shift-amount
- added check for possible wrap-arround in the operation
 2023-11-06 14:01:37 +01:00
Philippe Sauter 72c6a01e67 peepopt: Add initial `shiftadd` pattern 2023-11-06 14:01:37 +01:00