| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: gatecat <gatecat@ds0.me>
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This uses a new data structure for net.users that allows gaps, so
removing a port from a net is no longer an O(n) operation on the number
of users the net has.
Signed-off-by: gatecat <gatecat@ds0.me>
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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 <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: gatecat <gatecat@ds0.me>
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This replaces the arch-specific DelayInfo structure with new DelayPair
(min/max only) and DelayQuad (min/max for both rise and fall) structures
that form part of common code.
This further reduces the amount of arch-specific code; and also provides
useful data structures for timing analysis which will need to delay
with pairs/quads of delays as it is improved.
While there may be a small performance cost to arches that didn't
separate the rise/fall cases (arches that aren't currently separating
the min/max cases just need to be fixed...) in DelayInfo, my expectation
is that inlining will mean this doesn't make much difference.
Signed-off-by: gatecat <gatecat@ds0.me>
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Signed-off-by: D. Shah <dave@ds0.me>
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This uses the new IdStringList API to store bel names for the ECP5. Note
that other arches and the GUI do not yet build with this
proof-of-concept patch.
getBelByName still uses the old implementation and could be more
efficiently implemented with further development.
Signed-off-by: D. Shah <dave@ds0.me>
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Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
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* load wires
* add slice bels
* add IOB
* add aliases
* local aliases
* broken packing stuff
* working packer
* add constraints
* pnr runs1111
* add timing info
* constraints
* more constraint stuff
* add copyright
* remove generic reference
* remove parameters
* remove generic python api
* add newline to end of file
* some small refactoring
* warn on invalid constraints
* don't error on missing cell
* comment out debugging print
* typo
* avoid copy
* faster empty idstring
* remove intermediate variable
* no more deadnames
* fix cst warnings
* increase ripup and epsilon a bit
* take single device parameter
* add info to readme
* gui stubs
* Revert 4d03b681a8634e978bd5af73c97665500047e055
* assign ff_used in assignArchInfo
* decrease beta for better routability
* try to fix CI
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: Alyssa Milburn <amilburn@zall.org>
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Signed-off-by: David Shah <davey1576@gmail.com>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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