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| author | Clifford Wolf <clifford@clifford.at> | 2018-11-11 11:34:38 +0100 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2018-11-11 11:34:38 +0100 |
| commit | d2bdb670c0be9e18722f79c170fc99d7f41768f1 (patch) | |
| tree | c699864e888a9755e6a3f1aa958b8953e638e5f3 /docs | |
| parent | 285bffeac5ace1679489c2d23c8c5dc4b06f0bfc (diff) | |
| download | nextpnr-d2bdb670c0be9e18722f79c170fc99d7f41768f1.tar.gz nextpnr-d2bdb670c0be9e18722f79c170fc99d7f41768f1.tar.bz2 nextpnr-d2bdb670c0be9e18722f79c170fc99d7f41768f1.zip | |
Add getConflictingPipWire() arch API, router1 improvements
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/archapi.md | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/docs/archapi.md b/docs/archapi.md index 73443c15..1bfb7c5c 100644 --- a/docs/archapi.md +++ b/docs/archapi.md @@ -217,12 +217,12 @@ Return the net a wire is bound to. ### NetInfo \*getConflictingWireNet(WireId wire) const -If this returns a non-nullptr, then unbinding that net +If this returns a non-nullptr, then unbinding the wire from that net will make the given wire available. This returns nullptr if the wire is already available, -or if there is no single net that can be unbound to make this -wire available. +or if there is no net that can be unbound from the wire to make it +available. ### DelayInfo getWireDelay(WireId wire) const @@ -289,11 +289,21 @@ Return the net this pip is bound to. ### NetInfo \*getConflictingPipNet(PipId pip) const Return the net that needs to be unbound in order to make this -pip available. +pip available. Note that it may be neccessary to unroute that +entire net to make the pip available. -This does not need to (but may) return the conflicting wire if the conflict is -limited to the conflicting wire being bound to the destination wire for this -pip. +This returns nullptr if the pip is already available, +or if there is no single net that can be unrouted to make +the pip available. + +### WireId getConflictingPipWire(PipId pip) const + +Return the single wire that needs to be unbound in order to make this pip +available. + +This returns WireId() if the pip is already available, +or if there is no single wire that can be unbound to make +the pip available. ### const\_range\<PipId\> getPips() const |