gatecat ddb084e9a8 archapi: Use arbitrary rather than actual placement in predictDelay ...

This makes predictDelay be based on an arbitrary belpin pair rather
than a arc of a net based on cell placement. This way 'what-if'
decisions can be evaluated without actually changing placement;
potentially useful for parallel placement.

A new helper predictArcDelay behaves like the old predictDelay to
minimise the impact on existing passes; only arches need be updated.

Signed-off-by: gatecat <[email protected]>

2021-12-19 17:15:15 +00:00

..

archapi.md

archapi: Use arbitrary rather than actual placement in predictDelay

2021-12-19 17:15:15 +00:00

coding.md

archapi: Use arbitrary rather than actual placement in predictDelay

2021-12-19 17:15:15 +00:00

constraints.md

docs: Tidy up

2020-10-01 09:02:29 +01:00

faq.md

Update URLs

2021-06-12 13:22:38 +01:00

generic.md

Update generic.md

2021-02-20 10:51:30 +00:00

ice40.md

ice40: Add set_frequency pcf command; and document pcf

2019-10-13 18:48:39 +01:00

netlist.md

arch_api: Outline of new cluster API

2021-05-06 11:47:06 +01:00

nexus.md

nexus: Update docs and CMake

2020-11-30 08:59:04 +00:00

python.md

docs: Add Python API documentation

2019-09-19 15:52:18 +01:00

report.md

common: Add JSON timing and utilisation report

2021-07-29 12:53:23 +01:00