8bit Multiplier Verilog Code Github |verified| Jun 2026

This repository implements an 8‑bit Booth’s multiplier using behavioural Verilog. Booth’s algorithm minimises the number of addition and subtraction steps required for signed binary multiplication. The design is synchronous and includes a clock divider module to slow down the FPGA clock for easier observation. The final product is obtained from the upper 16 bits of the accumulator after eight iterations.

The simplest way to write a multiplier is to let the synthesis tool (like Vivado or Quartus) decide the hardware. This is highly portable and usually results in an optimized DSP slice implementation on FPGAs.

High-performance, complex design, best for speed. 8bit multiplier verilog code github

Uses a tree-like structure of carry-save adders to reduce the latency of the addition stage from 5. Finding the Best Code on GitHub

always @(posedge clk or negedge rst_n) begin if (!rst_n) begin multiplicand <= 8'd0; accumulator <= 16'd0; product <= 16'd0; bitcnt <= 4'd0; busy <= 1'b0; done <= 1'b0; end else begin if (start && !busy) begin multiplicand <= a; accumulator <= 8'd0, b; // accumulator holds running product (LSB side) bitcnt <= 4'd0; busy <= 1'b1; done <= 1'b0; end else if (busy) begin if (accumulator[0]) // add multiplicand when LSB is 1 accumulator[15:8] <= accumulator[15:8] + multiplicand; accumulator <= accumulator >> 1; bitcnt <= bitcnt + 1; if (bitcnt == 4'd7) begin product <= accumulator; busy <= 1'b0; done <= 1'b1; end end else begin done <= 1'b0; end end end endmodule The final product is obtained from the upper

For high-speed applications, algorithms like Wallace Tree or Booth's Algorithm are used to reduce the number of partial products, resulting in a faster, low-latency design. 3. Top GitHub Resources for 8-Bit Multiplier Verilog Code

For numbers, the range of inputs is 0 to 255, and the product ranges from 0 to 65025. For signed numbers in two’s complement, the inputs range from –128 to 127, and the product ranges from –16384 to 16129. High-performance, complex design, best for speed

A laboratory report from an ECE course explains the design of an unsigned shift‑and‑add multiplier that runs over eight clock cycles. The finite state machine includes an IDLE state (waiting for a START button), a RUN state (performing the multiplication), and a DONE state (presenting the result). The block diagram, state diagram, and Verilog implementation details are provided, making it an excellent teaching resource for understanding the controller required for a sequential multiplier.