Initial and probably final commitHEADmaster

1 files changed, 34 insertions, 0 deletions

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+module tree_adder(data_in, data_out);
+	parameter WIDTH=8, SIZE=4;
+	input wire [WIDTH*SIZE-1:0] data_in;
+	output wire [WIDTH-1:0] data_out;
+	if (SIZE == 2) begin
+		assign data_out = data_in[WIDTH-1:0] + data_in[2 * WIDTH-1:WIDTH];
+	end else begin
+		wire [WIDTH-1:0]intmd[0:1];
+		tree_adder#(WIDTH, SIZE/2) m1(data_in[SIZE/2*WIDTH-1:0], intmd[0]);
+		tree_adder#(WIDTH, SIZE/2) m2(data_in[SIZE*WIDTH-1:SIZE/2*WIDTH], intmd[1]);
+		assign data_out = intmd[0] + intmd[1];
+	end
+endmodule
+
+/*
+module test;
+	reg [63:0]vals;
+	wire [7:0] out;
+	tree_adder#(8, 8) adder(vals, out);
+	initial begin
+		$monitor(out);
+		vals[7:0] = 1;
+		vals[15:8] = 2;
+		vals[23:16] = 1;
+		vals[31:24] = 2;
+		vals[39:32] = 1;
+		vals[47:40] = 1;
+		vals[55:48] = 1;
+		vals[63:56] = 1;
+		#1;
+	end
+endmodule
+*/
+