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Diffstat (limited to 'techlibs/gowin/arith_map.v')
| -rw-r--r-- | techlibs/gowin/arith_map.v | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/techlibs/gowin/arith_map.v b/techlibs/gowin/arith_map.v index e15de6423..b6f9e8c38 100644 --- a/techlibs/gowin/arith_map.v +++ b/techlibs/gowin/arith_map.v @@ -40,15 +40,15 @@ module _80_gw1n_alu(A, B, CI, BI, X, Y, CO); \$pos #(.A_SIGNED(B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf)); wire [Y_WIDTH-1:0] AA = A_buf; - wire [Y_WIDTH-1:0] BB = BI ? ~B_buf : B_buf; + wire [Y_WIDTH-1:0] BB = B_buf; wire [Y_WIDTH-1:0] C = {CO, CI}; genvar i; generate for (i = 0; i < Y_WIDTH; i = i + 1) begin:slice - ALU #(.ALU_MODE(32'b0)) + ALU #(.ALU_MODE(2)) // ADDSUB I3 ? add : sub alu(.I0(AA[i]), .I1(BB[i]), - .I3(1'b0), + .I3(~BI), .CIN(C[i]), .COUT(CO[i]), .SUM(Y[i]) |