Github: 8-bit Multiplier Verilog Code

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// State machine for multiplication always @(posedge clk) begin if (reset) begin state <= 0; product <= 16'd0; multiplicand <= a; multiplier <= b; end else if (start) begin case (state) 0: begin product <= 16'd0; multiplicand <= a; multiplier <= b; state <= 1; end 1: begin if (multiplier != 8'd0) begin if (multiplier[0]) begin product <= product + {8'd0, multiplicand}; end multiplicand <= multiplicand << 1; multiplier <= {multiplier[7:1], 1'd0}; state <= 1; end else begin state <= 2; end end 2: begin state <= 2; // Stay in this state to hold the result end default: state <= 0; endcase end end 8-bit multiplier verilog code github

endmodule To use the above module, you would instantiate it in your top-level Verilog file or in a testbench. Here’s a simple testbench example: git add

initial begin clk = 0; #10; forever #5 clk = ~clk; reset = 1; #20; reset = 0; a = 8'd5; b = 8'd6; start = 1; #20; start = 0; #100 $finish; end // State machine for multiplication always @(posedge clk)

multiplier_8bit_manual uut (.a(a), .b(b), .product(product), .start(start), .clk(clk), .reset(reset));

initial $monitor("a = %d, b = %d, product = %d", a, b, product);

// Output the product assign product;