8-bit Multiplier Verilog Code Github 【Web】

The code must use only synthesizable constructs. Avoid code that uses #delay, initial blocks (outside testbenches), or force/release. Look for always @(*) or assign statements.

This is the style you will frequently find in GitHub repositories:

// 8-bit unsigned array multiplier
module mul_8bit_unsigned (
    input [7:0] a, b,
    output [15:0] product
);
    wire [7:0] pp0, pp1, pp2, pp3, pp4, pp5, pp6, pp7;
    wire [15:0] sum;
// Generate partial products
assign pp0 = b[0] ? a : 8'b0;
assign pp1 = b[1] ? a : 8'b0;
assign pp2 = b[2] ? a : 8'b0;
assign pp3 = b[3] ? a : 8'b0;
assign pp4 = b[4] ? a : 8'b0;
assign pp5 = b[5] ? a : 8'b0;
assign pp6 = b[6] ? a : 8'b0;
assign pp7 = b[7] ? a : 8'b0;
// Shift and add (simplified – actual design would use adders)
assign product = (8'b0, pp0 << 0) +
                 (7'b0, pp1, 1'b0 << 0) +
                 (6'b0, pp2, 2'b0 << 0) +
                 (5'b0, pp3, 3'b0 << 0) +
                 (4'b0, pp4, 4'b0 << 0) +
                 (3'b0, pp5, 5'b0 << 0) +
                 (2'b0, pp6, 6'b0 << 0) +
                 (1'b0, pp7, 7'b0 << 0);

endmodule

Note: Most real GitHub projects will implement efficient carry-save addition instead of direct + operators for synthesis. 8-bit multiplier verilog code github

When browsing GitHub, be wary of:

To help you navigate, here are the most common search patterns and what you will find. The code must use only synthesizable constructs

A faster variant of the array multiplier that compresses partial products using a tree of carry-save adders.

An 8-bit multiplier takes two 8-bit inputs (A[7:0] and B[7:0]) and produces a 16-bit product (P[15:0]). On GitHub, you will find various implementations targeting FPGA/ASIC design, student projects, and research prototypes. endmodule

Key parameters:

This mimics how we do multiplication by hand. It iterates over each bit over 8 clock cycles.