8bit Multiplier Verilog — Code Github
/////////////////////////////////////////////////////////////////////////////// // 8-bit Sequential Multiplier // Implementation: Shift-and-add algorithm // Uses less hardware but takes 8 clock cycles ///////////////////////////////////////////////////////////////////////////////
module multiplier_8bit_struct( input [7:0] A, input [7:0] B, output reg [15:0] Product );
// --- 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; 8bit multiplier verilog code github
: Instead of adding for every "1" in the multiplier, it looks for strings of ones and performs subtractions and additions at the boundaries.
// Stage 3: Add with fourth partial product ripple_carry_adder #(.WIDTH(10)) adder03 ( .a(carry[1][0], sum[1][7:0]), .b(pp[3] << 3), .cin(1'b0), .sum(sum[2][7:0], product[1:0]), .cout(carry[2][0]) ); // Stage 3: Add with fourth partial product
: It purposefully gives a "mostly correct" answer to save massive amounts of battery and space.
When searching , you'll encounter results with varying quality. Here's how to evaluate them: input [7:0] B
In this example, the top module instantiates the multiplier_8bit module and connects its input and output ports.