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| author | David Shah <davey1576@gmail.com> | 2018-06-13 10:50:05 +0200 |
|---|---|---|
| committer | David Shah <davey1576@gmail.com> | 2018-06-13 10:50:05 +0200 |
| commit | a76f5c5678980c8b2e958252a68ba03676d63229 (patch) | |
| tree | a9f32a39a91164b36ca55d567baf177bbaece1cc /ice40/cells.h | |
| parent | ddf549b117987c1e52412b58531c48a6050b51d1 (diff) | |
| download | nextpnr-a76f5c5678980c8b2e958252a68ba03676d63229.tar.gz nextpnr-a76f5c5678980c8b2e958252a68ba03676d63229.tar.bz2 nextpnr-a76f5c5678980c8b2e958252a68ba03676d63229.zip | |
Remove IO buffers when fed by SB_IO
Signed-off-by: David Shah <davey1576@gmail.com>
Diffstat (limited to 'ice40/cells.h')
| -rw-r--r-- | ice40/cells.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/ice40/cells.h b/ice40/cells.h index 34a034cd..da4e2bd8 100644 --- a/ice40/cells.h +++ b/ice40/cells.h @@ -47,6 +47,9 @@ inline bool is_ff(const CellInfo *cell) cell->type == "SB_DFFNESS" || cell->type == "SB_DFFNES"; } +// Return true if a cell is a SB_IO +inline bool is_sb_io(const CellInfo *cell) { return cell->type == "SB_IO"; } + // 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 |