8bit Multiplier Verilog Code Github [hot]

// Test all possible combinations (optional - exhaustive test) // For 8-bit, exhaustive would be 65536 tests - can run subset initial begin $display("========================================="); $display("8-bit Multiplier Testbench"); $display("=========================================");

// --- METHOD 1: Behavioral (Standard for FPGA) --- // This is what you will usually find in practical GitHub repos. // The Synthesis tool infers DSP blocks or optimized carry chains. assign Product = A * B;

: Ideal for signed multiplication. It uses an encoding scheme to reduce the number of partial products, making it faster and more efficient for 2's complement numbers. 8bit multiplier verilog code github

// Test Case 2: Max values A = 8'd255; B = 8'd255; #10 $display("Test 2: %d * %d = %d (Expected 65025)", A, B, Product);

// Test Case 3: Random values A = 8'd45; B = 8'd33; #10 $display("Test 3: %d * %d = %d (Expected 1485)", A, B, Product); // Test all possible combinations (optional - exhaustive

If you are learning digital design or cannot use the * operator, you can implement the multiplication using the "Shift and Add" algorithm (similar to how we do long-hand multiplication on paper).

module eight_bit_multiplier_sequential ( input wire clk, input wire rst_n, input wire start, input wire [7:0] a, input wire [7:0] b, output reg [15:0] product, output reg done ); It uses an encoding scheme to reduce the

| Architecture | LUTs (approx, 7-series) | Max Freq (MHz) | Power | Best for | |---------------|-------------------------|----------------|--------|-------------------------| | * operator | 0 (uses DSP48) | 450+ | Low | FPGA with DSP slices | | Array | 250-300 | 150 | Medium | ASIC, no DSP FPGA | | Sequential | 50-80 | 200 | Low | Low-area, slow designs | | Booth | 180-220 | 250 | Medium | Signed multiplication | | Wallace tree | 300-350 | 300 | High | High-speed DSP, ASIC |

$finish; end

Whether you clone an existing GitHub repo or write your own, remember: