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module multiple_blocking #(parameter WIDTH=256, SELW=2)
(input clk ,
input [9:0] ctrl ,
input [15:0] din ,
input [SELW-1:0] sel ,
output reg [WIDTH:0] dout);
localparam SLICE = WIDTH/(SELW**2);
reg [9:0] a;
reg [SELW-1:0] b;
reg [15:0] c;
always @(posedge clk) begin
a = ctrl + 1;
b = sel - 1;
c = ~din;
dout = dout + 1;
dout[a*b+:SLICE] = c;
end
endmodule
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