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-rw-r--r--techlibs/gowin/arith_map.v12
1 files changed, 6 insertions, 6 deletions
diff --git a/techlibs/gowin/arith_map.v b/techlibs/gowin/arith_map.v
index 25e789e4a..e15de6423 100644
--- a/techlibs/gowin/arith_map.v
+++ b/techlibs/gowin/arith_map.v
@@ -25,24 +25,24 @@ module _80_gw1n_alu(A, B, CI, BI, X, Y, CO);
parameter A_WIDTH = 1;
parameter B_WIDTH = 1;
parameter Y_WIDTH = 1;
-
+
input [A_WIDTH-1:0] A;
input [B_WIDTH-1:0] B;
output [Y_WIDTH-1:0] X, Y;
-
+
input CI, BI;
output [Y_WIDTH-1:0] CO;
-
+
wire _TECHMAP_FAIL_ = Y_WIDTH <= 2;
-
+
wire [Y_WIDTH-1:0] A_buf, B_buf;
\$pos #(.A_SIGNED(A_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf));
\$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] C = {CO, CI};
-
+
genvar i;
generate for (i = 0; i < Y_WIDTH; i = i + 1) begin:slice
ALU #(.ALU_MODE(32'b0))