* gatemate: add alternate clock routes
* use additional pins
* Fix clock router and timings
* Fix DDR nets
* Test passtrough concept
* remove not used variable
* wip
* handle pip masks
* Cleanup
* create CPE_CPLINES cells and set properties on them
* Fix pip masking
* rough code to break cplines into subnets
* add ports to cell
* mux bridges need cell bel pins too
* fix multiplier output register packing
* remove empty if
* Fix ODDR
* Add options to disable some pips
* Use resources info
* mask field to resource field
* produce valid netlist with propagation netlist at least
* adapt reassign_cplines for internal resource pips
* Handle block and resources
* fix formatting
* It is required to set all mandatory properties now
* arch API for resources
* current progress
* Add option to skip bridges
* perform per-wire resource congestion costing
* Added no-cpe-cp option
* resource bugfix
* comment out spammy debug message
* Fix routing conflicts issues
* allow only some pass trough for clock router
* handle inversion bits for pass signals
* verify inversion before/after assigning bridges
* we care only if there is net
* Revert "we care only if there is net"
This reverts commit 3da2769e31.
* Revert "verify inversion before/after assigning bridges"
This reverts commit 8613ee17c8.
* chipdb version bump
* clangformat
* cleanup
* cleanup
* Initial conversion to GroupId
* Keep group info in pip extra
* Cleanup headers
* Initialize resource efficiently
* Addressing review comments
* improve resource docs
* Make CP lines not use as clocks as default
---------
Co-authored-by: Lofty <dan.ravensloft@gmail.com>
The two main changes, done together in this commit, are:
* Eliminating most instances of `aux_source_directory()`, replacing
them with explicit file listings; and
* Moving these file listings into respective subdirectories by
representing respective nextpnr components as interface libraries.
In addition, the GUI CMake script tree was simplified since it had
a lot of unused/redundant code.
The `aux_source_directory()` command is not recommended for use by
CMake itself because it misses dependency changes when adding/removing
files, and consequently causes build failures requiring a clean rebuild.
This commit does not touch anything related to architectures/families,
which are very complex and redundant all on their own.
When implementing concepts such as partition pins or deliberately split
nets, there's a need for something that looks like a cell (starts/ends
routing with pins on nets, has timing data) but isn't mapped to a fixed
bel in the architecture, but instead can have pin mappings defined at
runtime.
The PseudoCell allows this by providing an alternate, virtual-function
based API for such cells. When a cell has `pseudo_cell` used, instead of
calling functions such as getBelPinWire, getBelLocation or getCellDelay
in the Arch API; such data is provided by the cell itself, fully
flexible at runtime regardless of arch, via methods on the PseudoCell
implementation.
gatecat
Miodrag Milanović
Lofty
Catherine
Rowan Goemans