1. Name:- Sagar Roll No:- B-33 Reg No:- 11103500
module alu_8bit_sagar(x,y,ctrl,out);
input [7:0] x,y;
input [3:0] ctrl;
output [15:0]out;
reg [15:0]out;
always@(ctrl)
begin
if(ctrl==1'd0)
out=x*y;
else if(ctrl==1'd1)
out=x+y;
else if(ctrl==1'd2)
out=y-1;
else if(ctrl==1'd3)
out=x||y;
else if(ctrl==1'd4)
out=x&&y;
else if(ctrl==1'd5)
out=x>>1;
else if(ctrl==1'd6)
out=x<<1;
else if(ctrl==1'd7)
out=x^y;
else if(ctrl==1'd8)
out=x&y;
else if(ctrl==1'd9)
out=x|y;
else if(ctrl=='d10)
out=y>>1;
else if(ctrl==2'd11)
out=y<<1;
else if(ctrl==2'd12)
out=~x;
else if(ctrl==2'd13)
out=!x;
else if(ctrl==2'd14)
out=x-1;
else if(ctrl==2'd15)
out=x+1;
else
out = 'bx;
end
endmodule

2. Test Bench
module alu_8bit_sagartb_v;
// Inputs
reg [7:0] x;
reg [7:0] y;
reg [3:0] ctrl;
// Outputs
wire [15:0] out;
// Instantiate the Unit Under Test (UUT)
alu_8bit_sagar uut (
.x(x),
.y(y),
.ctrl(ctrl),
.out(out)
);
initial begin
// Initialize Inputs
x = 25;
y = 20;
ctrl = 0;
#2
repeat(16)
begin
#2
ctrl=ctrl+1;
end
#50 $stop;
// Wait 100 ns for global reset to finish
#100;
// Add stimulus here
end
endmodule