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Verilog: 8 to 3 Encoder Dataflow Modelling with Testbench Code
Verilog Code for 8 to 3 Encoder Dataflow Modelling module encoder_8_to_3( input d0, input d1, input d2, input d3, input d4, input d5, input d6, input d7, output q0, output q1, output q2 ); assign q0 = ( d1 | d3 | d5 | d7 ); assign q1 = ( d2 | d3 | d6 | d7 ); assign q2 = ( d4 | d6 | d5 | d7 ); endmodule //Testbench initial begin // Initialize Inputs d0 = 1; d1 = 0; d2 = 0; d3 = 0; d4 = 0; d5 = 0; d6 = 0; d7 = 0; // Wait 100 ns for global reset to finish #100; // Add stimulus here #100;d0 = 0;d1 = 1;d2 = 0;d3 = 0;d4 = 0;d5 = 0;d6 = 0;d7 = 0; #100;d0 = 0;d1 = 0;d2 = 1;d3 = 0;d4 = 0;d5 = 0;d6 = 0;d7 = 0; #100;d0 = 0;d1 = 0;d2 = 0;d3 = 1;d4 = 0;d5 = 0;d6 = 0;d7 = 0; #100;d0 = 0;d1 = 0;d2 = 0;d3 = 0;d4 = 1;d5 = 0;d6 = 0;d7 = 0; #100;d0 = 0;d1 = 0;d2 = 0;d3 = 0;d4 = 0;d5 = 1;d6 = 0;d7 = 0; #100;d0 = 0;d1 = 0;d2 = 0;d3 = 0;d4 = 0;d5 = 0;d6 = 1;d7 = 0; #100;d0 = 0;d1 = 0;d2 = 0;d3 = 0;d4 = 0;d5 = 0;d6 = 0;d7 = 1; end Xillinx Output: 8 to 3 Encoder Xilinx Output ...
Verilog: 1to 8 DeMultiplexer (1-8 DEMUX) Dataflow Modelling with Testbench Code
Verilog Code for 1 to 8 DeMultiplexer Dataflow Modelling module demux_1_to_8( input d, input s0, input s1, input s2, output y0, output y1, output y2, output y3, output y4, output y5, output y6, output y7 ); assign s0n = ~ s0; assign s1n = ~ s1; assign s2n = ~ s2; assign y0 = d & s0n & s1n & s2n; assign y1 = d & s0 & s1n & s2n; assign y2 = d & s0n & s1 & s2n; assign y3 = d & s0 & s1 & s2n; assign y4 = d & s0n & s1n & s2; assign y5 = d & s0 & s1n & s2; assign y6 = d & s0n & s1 & s2; assign y7 = d & s0 & s1 & s2; endmodule //Testbench code for 1-8 DEMUX Dataflow Modelling initial begin // Initialize Inputs d = 0;s0 = 0;s1 = 0;s2 = 0; // Wait 100 ns for global reset to finish #100; // Add stimulus here #100; d = 1;s0 = 0;s1 = 0;s2 = 0; #100; d = 1;s0 = 1;s1 = 0;s2 = 0; #100; d = 1;s0 = 0;s1 = 1;s2 = 0; #100; d = 1;s0 = 1;s1 = 1;s2 = 0; #100; d = 1;s0 = 0;s1 = 0;s2 = 1; ...
Verilog: 1 to 4 DeMultiplexer (1-4 DEMUX) Dataflow Modelling with Testbench Code
Verilog Code for 1 to 4 DeMultiplexer Dataflow Modelling module demux_1_to_4( input d, input s0, input s1, output y0, output y1, output y2, output y3 ); assign s1n = ~ s1; assign s0n = ~ s0; assign y0 = d& s0n & s1n; assign y1 = d & s0 & s1n; assign y2 = d & s0n & s1; assign y3 = d & s0 & s1; endmodule //Testbench code for 1-4 DEMUX Dataflow Modelling initial begin // Initialize Inputs d = 1; s0 = 0; s1 = 0; // Wait 100 ns for global reset to finish #100; // Add stimulus here #100;d = 1;s0 = 1;s1 = 0; #100;d = 1;s0 = 0;s1 = 1; #100;d = 1;s0 = 1;s1 = 1; end Xillinx Output: 1-4 DEUX Dataflow Modelling Also See: List of Verilog Programs
Verilog: VLSI Code for JK Flip Flop with Testbench Dataflow Modelling
Verilog Code for J K Flip Flop Dataflow Modelling module JK_flipflop( input j, input k, input en, output q, output qb ); assign a = ~ ( qb & j & en ); assign b = ~ ( q & k & en ); assign q = ~ ( a & qb ); assign qb = ~ ( b & q & (~ k) ); endmodule //Testbench initial begin // Initialize Inputs j = 0; k = 0; en = 0; // Wait 100 ns for global reset to finish #100; // Add stimulus here #100;j = 0;k = 0;en = 1; #100;j = 0;k = 1;en = 1; #100;j = 1;k = 0;en = 1; #100;j = 1;k = 1;en = 1; #100;j = 0;k = 1;en = 0; #100;j = 1;k = 0;en = 0; #100;j = 1;k = 1;en = 0; #100;j = 0;k = 0;en = 1; #100;j = 0;k = 1;en = 1; #100;j = 1;k = 0;en = 1; #100;j = 1;k = 1;en = 1; end Xillinx Output: JK Flip Flop Dataflow Modelling Also See: List of Verilog Programs
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VLSI: 1-4 DEMUX (Demultiplexer) Dataflow Modelling with Testbench
Verilog Code for 1-4 DEMUX Dataflow Modelling module demux_1_to_4( input d, input s0, input s1, output y0, output y1, output y2, output y3 ); assign s1n = ~ s1; assign s0n = ~ s0; assign y0 = d& s0n & s1n; assign y1 = d & s0 & s1n; assign y2 = d & s0n & s1; assign y3 = d & s0 & s1; endmodule //Testbench code for 1-4 DEMUX Dataflow Modelling initial begin // Initialize Inputs ...
VLSI: BCD to Excess 3 and Excess 3 to BCD Dataflow Modelling
module bcd_ex3_Dataflow( input a, input b, input c, input d, output w, output x, output y, output z ); assign w = (a | (b & c) | (b & d)); assign x = (((~b) & c) | ((~b) & d) | (b & (~c) & (~d))); assign y = ((c & d) | ((~c) & (~d))); assign z = ~d; endmodule Excess 3 to BCD: module ex3_to_bcd( input w, input x, input y, input z, output a, output b, output c, output d ); assign a = ((w & x) | (w & y & z)); assign b = (((~x) & (~y)) | ((~x) & (~z)) | (x & y & z)); assign c = (((~y) & z) | (y & (~z))); assign d = ~z; endmodule
Verilog: 4 to 2 Encoder Behavioral Modelling using Case Statement with Testbench Code
Verilog Code for 4 to 2 Encoder Behavioral Modelling using Case Statement with Testbench Code module 4_2_ENC( input [3:0]din, output [1:0]dout ); reg [1:0]dout; always @ (din) case (din) 1 : dout[0] = 0; 2 : dout[1] = 1; 4 : dout[2] = 2; 8 : dout[3] = 3; default : dout = 2’bxx; endcase endmodule //Testbench code for 4 to 2 Encoder Behavioral Modelling using Case Statement initial begin // Initialize Inputs din = 0; // Wait 100 ns for global reset to finish #100; // Add stimulus here #100; din=1; #100; din=2; #100; din=4; #100; din=8; end initial begin #100 $monitor (“ din=%b, dout=%b”, din, dout); end endmodule Xillinx Output: 4 - 2 Encoder Behavioral Modelling Verilog Response
Full Subtractor Verilog Code in Structural/Gate Level Modelling with Testbench
Verilog Code for Full Subtractor Structural/Gate Level Modelling module full_sub(borrow,diff,a,b,c); output borrow,diff; input a,b,c; wire w1,w4,w5,w6; xor (diff,a,b,c); not n1(w1,a); and a1(w4,w1,b); and a2(w5,w1,c); and a3(w6,b,c); or o1(borrow,w4,w5,w6); endmodule //Testbench code for Full Subtractor Structural/Gate Level Modelling initial begin // Initialize Inputs a = 0; b = 0; c = 0; // Wait 100 ns for global reset to finish #100; // Add stimulus here #100; a = 0;b = 0;c = 1; #100; a = 0;b = 1;c = 0; #100; a = 0;b = 1;c = 1; #100; a = 1;b = 0;c = 0; #100; a = 1;b = 0;c = 1; #100; a = 1;b = 1;c = 0; #100; a = 1;b = 1;c = 1; end Output: RTL Schematic: Full Subtractor Verilog Other Verilog Programs: Go to Index of Verilog Programming
VLSI: 8-3 Encoder Dataflow Modelling with Testbench
Verilog Code for 8-3 Encoder Dataflow Modelling module encoder_8_to_3( input d0, input d1, input d2, input d3, input d4, input d5, input d6, input d7, output q0, output q1, output q2 ); assign q0 = ( d1 | d3 | d5 | d7 ); assign q1 = ( d2 | d3 | d6 | d7 ); assign q2 = ( d4 | d6 | d5 | d7 ); endmodule //Testbench code for 8-3 Encoder Dataflow Modelling initial begin ...