Design of 8 nibble Stack using Behavior Modeling Style (Verilog CODE).

Design of 8 - nibble STACK using Behavior Modeling Style -

Output Waveform : 8 ibble STACK Design

Verilog CODE -



//-----------------------------------------------------------------------------
//
// Title       : stack_8nibble
// Design      : verilog upload 4
// Author      : Naresh Singh Dobal
// Company     : nsdobal@gmail.com
// Verilog Programs & Exercise with Naresh Singh Dobal
//
//-----------------------------------------------------------------------------
//
// File        : Design of 8 nibble stack using behavior modeling style.v


module stack_8nibble ( clk ,push ,pull ,din ,dout );

output [3:0] dout ;
reg [3:0] dout ;

input clk ;
wire clk ;
input push ;
wire push ;
input pull ;
wire pull ;
input [3:0] din ;
wire [3:0] din ;

reg [3:0] stack [0:7] ;

reg [3:0] i;

initial i = 0;

always @ (posedge (clk)) begin
if (push) begin
stack[i] <= din;
i <= i + 1;
end else if (pull) begin
dout <= stack[i];
i <= i - 1;
end
end

endmodule