/////////////////////////////////////////////////////////////////////////////// // Testbench for 8-bit Multiplier ///////////////////////////////////////////////////////////////////////////////
: Based on the "Urdhva Tiryagbhyam" sutra, this design generates partial products faster and with less power consumption than conventional methods.
`timescale 1ns / 1ps
Here is a simple Verilog code for an 8-bit multiplier:
Insert registers between partial product stages to achieve 1 result per clock cycle after initial latency. 8bit multiplier verilog code github
# 8-bit Multiplier in Verilog
module tb_eight_bit_multiplier();
// Instantiate a DSP macro for 8x8 signed multiply DSP48E1 #(.A_INPUT("DIRECT"), .B_INPUT("DIRECT")) dsp_inst (.A(a_signed), .B(b_signed), .P(product));
// ================================================================= // Module Name: multiplier_8bit // Description: Parametric 8-bit signed/unsigned behavioral multiplier. // ================================================================= module multiplier_8bit ( input wire clk, // Optional clock for registered outputs input wire rst_n, // Active-low asynchronous reset input wire is_signed, // Control signal: 1 = Signed, 0 = Unsigned input wire [7:0] data_a, // Multiplicand Input input wire [7:0] data_b, // Multiplier Input output reg [15:0] product // 16-bit Product Output ); // Internal wires for extended signed arithmetic wire signed [15:0] signed_a; wire signed [15:0] signed_b; wire [15:0] unsigned_product; wire signed [15:0] signed_product; // Sign extension logic based on input mode assign signed_a = is_signed ? 8data_a[7], data_a : 8'b0, data_a; assign signed_b = is_signed ? 8data_b[7], data_b : 8'b0, data_b; // Intermediate multiplication blocks assign unsigned_product = data_a * data_b; assign signed_product = signed_a * signed_b; // Synchronous output assignment to prevent combinational glitches always @(posedge clk or negedge rst_n) begin if (!rst_n) begin product <= 16'h0000; end else begin if (is_signed) begin product <= signed_product; end else begin product <= unsigned_product; end end end endmodule Use code with caution. 3. Writing a Verification Testbench The code is fully synthesizable and has been
You can directly copy these files to your GitHub repository. The code is fully synthesizable and has been verified through simulation. </code></pre>