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-rw-r--r--ice40/cells.cc13
1 files changed, 13 insertions, 0 deletions
diff --git a/ice40/cells.cc b/ice40/cells.cc
index 328b5f2d..db13a55f 100644
--- a/ice40/cells.cc
+++ b/ice40/cells.cc
@@ -64,6 +64,19 @@ CellInfo *create_ice_cell(Design *design, IdString type, IdString name)
return new_cell;
}
+void lut_to_lc(CellInfo *lut, CellInfo *lc, bool no_dff)
+{
+ lc->params["LUT_INIT"] = lut->params["LUT_INIT"];
+ replace_port(lut, "I0", lc, "I0");
+ replace_port(lut, "I1", lc, "I1");
+ replace_port(lut, "I2", lc, "I2");
+ replace_port(lut, "I3", lc, "I3");
+ if (no_dff) {
+ replace_port(lut, "O", lc, "O");
+ lc->params["DFF_ENABLE"] = "0";
+ }
+}
+
void dff_to_lc(CellInfo *dff, CellInfo *lc, bool pass_thru_lut)
{
lc->params["DFF_ENABLE"] = "1";