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| author | myrtle <gatecat@ds0.me> | 2022-05-13 09:09:50 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-05-13 09:09:50 +0100 |
| commit | 4ecbf6c6e941699413e0d0bba660fc9dc18efcfe (patch) | |
| tree | 4dc7868ffbb4d86e45fb5874e17b88d747e72bfc /fpga_interchange/luts.h | |
| parent | 41936fefac2b819ad77204f0ed64ba01e9138c2a (diff) | |
| parent | d75c45c63f444af0349463346101c9d7d7ae6283 (diff) | |
| download | nextpnr-4ecbf6c6e941699413e0d0bba660fc9dc18efcfe.tar.gz nextpnr-4ecbf6c6e941699413e0d0bba660fc9dc18efcfe.tar.bz2 nextpnr-4ecbf6c6e941699413e0d0bba660fc9dc18efcfe.zip | |
Merge pull request #985 from antmicro/interchange-lut-constants
[interchange] Tying unused LUT inputs according to architecture
Diffstat (limited to 'fpga_interchange/luts.h')
| -rw-r--r-- | fpga_interchange/luts.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/fpga_interchange/luts.h b/fpga_interchange/luts.h index 8f33507a..892f457c 100644 --- a/fpga_interchange/luts.h +++ b/fpga_interchange/luts.h @@ -42,11 +42,22 @@ enum LogicLevel struct LutCell { + enum class PinConnection + { + Unconnected, + Gnd, + Vcc, + Const, + Signal + }; + // LUT cell pins for equation, LSB first. std::vector<IdString> pins; pool<IdString> lut_pins; - pool<IdString> vcc_pins; + dict<IdString, PinConnection> pin_connections; DynamicBitarray<> equation; + + static const std::string nameOfPinConnection(PinConnection conn); }; struct LutBel |