test_shifter.v

`timescale 1ns / 1ps

//////////////////////////////////////////////////////////////////////////////////
// Assignment 7
//
//Group No.42
//Members: 	Seemant Guruprasad Achari 	19CS10055
//			Chappidi Yoga Satwik 		19CS30013
// 
// This is the testbench for the Shifter Module
// 
//////////////////////////////////////////////////////////////////////////////////

module test_shifter;

	// Inputs
	reg [2:0] op;
	reg [31:0] a;
	reg [4:0] sh_amt;

	// Outputs
	wire [31:0] sh_result;

	// Instantiate the Unit Under Test (UUT)
	shifter uut (
		.sh_result(sh_result), 
		.op(op), 
		.a(a), 
		.sh_amt(sh_amt)
	);

	initial begin
		// Initialize Inputs
		op = 3'b011;
		a = -54;
		sh_amt = 0;
		#100;
		sh_amt = 5;
		// Wait 100 ns for global reset to finish
		#100;
        
		// Add stimulus here
		// Add stimulus here
		op = 3'b100;
		a = -54;
		#100;
		op = 3'b101;
		a = -54;
		#100;
	end
      
endmodule