diff options
Diffstat (limited to 'techlibs/ice40/abc9_model.v')
| -rw-r--r-- | techlibs/ice40/abc9_model.v | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/techlibs/ice40/abc9_model.v b/techlibs/ice40/abc9_model.v index 26cf6cc22..a5e5f4372 100644 --- a/techlibs/ice40/abc9_model.v +++ b/techlibs/ice40/abc9_model.v @@ -9,6 +9,8 @@ module \$__ICE40_CARRY_WRAPPER ( input I0, I3 ); parameter LUT = 0; + parameter I3_IS_CI = 0; + wire I3_OR_CI = I3_IS_CI ? CI : I3; SB_CARRY carry ( .I0(A), .I1(B), @@ -21,7 +23,7 @@ module \$__ICE40_CARRY_WRAPPER ( .I0(I0), .I1(A), .I2(B), - .I3(I3), + .I3(I3_OR_CI), .O(O) ); endmodule |