mirror of https://github.com/YosysHQ/yosys.git
560 lines
16 KiB
Verilog
560 lines
16 KiB
Verilog
module forloop_select_gate (clk, ctrl, din, en, dout);
|
|
input clk;
|
|
input [3:0] ctrl;
|
|
input [15:0] din;
|
|
input en;
|
|
output reg [15:0] dout;
|
|
reg [4:0] sel;
|
|
always @(posedge clk)
|
|
case (|(en))
|
|
1'b 1:
|
|
begin
|
|
case (({(ctrl)*(0)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 00001)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 00010)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 00011)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 00100)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 00101)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 00110)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 00111)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 01000)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 01001)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 01010)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 01011)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 01100)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 01101)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 01110)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
case (({(ctrl)*(5'b 01111)})+(0))
|
|
0:
|
|
dout[0:0] <= din;
|
|
1:
|
|
dout[1:1] <= din;
|
|
2:
|
|
dout[2:2] <= din;
|
|
3:
|
|
dout[3:3] <= din;
|
|
4:
|
|
dout[4:4] <= din;
|
|
5:
|
|
dout[5:5] <= din;
|
|
6:
|
|
dout[6:6] <= din;
|
|
7:
|
|
dout[7:7] <= din;
|
|
8:
|
|
dout[8:8] <= din;
|
|
9:
|
|
dout[9:9] <= din;
|
|
10:
|
|
dout[10:10] <= din;
|
|
11:
|
|
dout[11:11] <= din;
|
|
12:
|
|
dout[12:12] <= din;
|
|
13:
|
|
dout[13:13] <= din;
|
|
14:
|
|
dout[14:14] <= din;
|
|
15:
|
|
dout[15:15] <= din;
|
|
endcase
|
|
sel = 5'b 10000;
|
|
end
|
|
endcase
|
|
endmodule
|