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Diffstat (limited to 'techlibs/ice40/arith_map.v')
| -rw-r--r-- | techlibs/ice40/arith_map.v | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/techlibs/ice40/arith_map.v b/techlibs/ice40/arith_map.v index 26b24db9e..ed4140e44 100644 --- a/techlibs/ice40/arith_map.v +++ b/techlibs/ice40/arith_map.v @@ -49,13 +49,14 @@ module _80_ice40_alu (A, B, CI, BI, X, Y, CO); // A[1]: 1100 1100 1100 1100 // A[2]: 1111 0000 1111 0000 // A[3]: 1111 1111 0000 0000 - .LUT(16'b 0110_1001_1001_0110) - ) fadd ( + .LUT(16'b 0110_1001_1001_0110), + .I3_IS_CI(1'b1) + ) carry ( .A(AA[i]), .B(BB[i]), .CI(C[i]), .I0(1'b0), - .I3(C[i]), + .I3(1'bx), .CO(CO[i]), .O(Y[i]) ); |