8 Bit Array Multiplier Verilog Code May 2026

// Assign product bits assign P[1] = sum[0][0]; assign P[2] = sum[1][1]; assign P[3] = sum[2][2]; assign P[4] = sum[3][3]; assign P[5] = sum[4][4]; assign P[6] = sum[5][5]; assign P[7] = sum[6][6]; assign P[8] = final_sum[0]; assign P[9] = final_sum[1]; assign P[10] = final_sum[2]; assign P[11] = final_sum[3]; assign P[12] = final_sum[4]; assign P[13] = final_sum[5]; assign P[14] = final_sum[6]; assign P[15] = final_sum[7];

// First row (i=0): just pass partial product (no addition) assign P[0] = pp[0][0];

// First row (i=0) assign s[0][0] = pp[0][0]; assign c[0][0] = 1'b0; genvar j; generate for (j = 1; j < 8; j = j + 1) begin assign s[0][j] = pp[0][j]; assign c[0][j] = 1'b0; end endgenerate 8 bit array multiplier verilog code

endmodule The above manual connection for final product is simplified. A cleaner implementation uses a 2D array of carry-save adders. Below is a more elegant version using generate loops. 4.4 Optimized Structured Version module array_multiplier_8bit_optimized ( input [7:0] A, B, output [15:0] P ); wire [7:0] pp [0:7]; wire [7:0] s [0:7]; // sum between rows wire [7:0] c [0:7]; // carry between rows // Partial product generation generate for (i = 0; i < 8; i = i + 1) begin for (j = 0; j < 8; j = j + 1) begin assign pp[i][j] = A[i] & B[j]; end end endgenerate

// Final row (i=7) wire [7:0] final_carry; generate for (j = 0; j < 7; j = j + 1) begin if (j == 0) ha ha_final (.a(pp[7][0]), .b(s[6][0]), .sum(s[7][j]), .carry(final_carry[j])); else fa fa_final (.a(pp[7][j]), .b(s[6][j]), .cin(final_carry[j-1]), .sum(s[7][j]), .cout(final_carry[j])); end assign s[7][7] = final_carry[6]; endgenerate // Assign product bits assign P[1] = sum[0][0];

[ P = \sum_i=0^7 (A \cdot B_i) \cdot 2^i ]

// Row 1: half adder at LSB, rest pass carry/sum assign sum[0][0] = pp[1][0]; assign carry[0][0] = 1'b0; // Not used output [15:0] P )

—Array multiplier, Verilog, digital design, parallel multiplication, full adder.