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| author | David Shah <davey1576@gmail.com> | 2018-06-12 12:13:11 +0200 |
|---|---|---|
| committer | David Shah <davey1576@gmail.com> | 2018-06-12 12:13:11 +0200 |
| commit | 2f61a9b98a621a35aa4763abaaf27ca12bfbbefa (patch) | |
| tree | e1d205548f38a14019d22b757b0bf11a58e7886b /ice40/cells.h | |
| parent | 5f813410aabdae3de84e11861248dcd0699b41c2 (diff) | |
| download | nextpnr-2f61a9b98a621a35aa4763abaaf27ca12bfbbefa.tar.gz nextpnr-2f61a9b98a621a35aa4763abaaf27ca12bfbbefa.tar.bz2 nextpnr-2f61a9b98a621a35aa4763abaaf27ca12bfbbefa.zip | |
ice40: Start working on a packer, currently not tested
Signed-off-by: David Shah <davey1576@gmail.com>
Diffstat (limited to 'ice40/cells.h')
| -rw-r--r-- | ice40/cells.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ice40/cells.h b/ice40/cells.h index 1fa85413..a2d45df6 100644 --- a/ice40/cells.h +++ b/ice40/cells.h @@ -45,6 +45,11 @@ inline bool is_ff(const CellInfo *cell) cell->type == "SB_DFFNESS" || cell->type == "SB_DFFNES"; } +// Convert a SB_LUT primitive to (part of) an ICESTORM_LC, swapping ports +// as needed. Set no_dff if a DFF is not being used, so that the output +// can be reconnected +void lut_to_lc(CellInfo *lut, CellInfo *lc, bool no_dff = true); + // Convert a SB_DFFx primitive to (part of) an ICESTORM_LC, setting parameters // and reconnecting signals as necessary. If pass_thru_lut is True, the LUT will // be configured as pass through and D connected to I0, otherwise D will be |