yosys

Author	SHA1	Message	Date
Marcelina Kościelnicka	62d41d4639	opt_clean: Make the init attribute follow the FF's Q. Previously, opt_clean would reconnect all ports (including FF Q ports) to a "canonical" SigBit chosen by complex rules, but would leave the init attribute on the old wire. This change applies the same canonicalization rules to the init attributes, ensuring that init moves to wherever the Q port moved. Part of another jab at #2920.	2021-08-22 15:38:29 +02:00
Marcin Kościelnicki	2d3753d730	iopadmap: Fix z assignment to inout port Fixes #1841.	2020-04-02 18:15:04 +02:00
Marcelina Kościelnicka	968956badb	iopadmap: Look harder for already-present buffers. (#1731 ) iopadmap: Look harder for already-present buffers. Fixes #1720.	2020-03-02 21:40:09 +01:00
Eddie Hung	3065d4092e	Fine tune #1699 tests	2020-02-13 15:14:58 -08:00
Eddie Hung	ebb11bcea4	iopadmap: move \init attributes from outpad output to its input	2020-02-13 12:05:14 -08:00
Marcin Kościelnicki	a24596def3	iopadmap: Emit tristate buffers with const OE for some edge cases.	2019-12-25 17:37:58 +01:00
Marcin Kościelnicki	2abe38e73e	iopadmap: Refactor and fix tristate buffer mapping. (#1527 ) The previous code for rerouting wires when inserting tristate buffers was overcomplicated and didn't handle all cases correctly (in particular, only cell connections were rewired — internal connections were not).	2019-12-04 08:44:08 +01:00