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module forloop_select #(parameter WIDTH=16, SELW=4, CTRLW=$clog2(WIDTH), DINW=2**SELW)
(input clk,
input [CTRLW-1:0] ctrl,
input [DINW-1:0] din,
input en,
output reg [WIDTH-1:0] dout);
reg [SELW:0] sel;
localparam SLICE = WIDTH/(SELW**2);
always @(posedge clk)
begin
if (en) begin
for (sel = 0; sel <= 4'hf; sel=sel+1'b1)
dout[(ctrl*sel)+:SLICE] <= din;
end
end
endmodule
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