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6 Commits

Author SHA1 Message Date
Marcelina Kościelnicka e7d89e653c Hook up $aldff support in various passes. 2021-10-02 21:01:21 +02:00
Marcelina Kościelnicka 63b9df8693 kernel/ff: Refactor FfData to enable FFs with async load. 
- *_en is split into *_ce (clock enable) and *_aload (async load aka
  latch gate enable), so both can be present at once
- has_d is removed
- has_gclk is added (to have a clear marker for $ff)
- d_is_const and val_d leftovers are removed
- async2sync, clk2fflogic, opt_dff are updated to operate correctly on
  FFs with async load
 2021-10-02 20:19:48 +02:00
Marcelina Kościelnicka f9aad606ca simplemap: refactor to use FfData. 2021-10-02 03:24:57 +02:00
Marcelina Kościelnicka 1eea06bcc0 Add new helper class for merging FFs into cells, use for memory_dff. 
Fixes #1854.
 2021-05-23 14:46:59 +02:00
Marcelina Kościelnicka 4a05cad7f8 async2sync: Support all FF types. 2020-07-30 20:22:03 +02:00
Marcelina Kościelnicka dafe04d559 Add utility module for representing flip-flops. 2020-07-23 23:39:46 +02:00