//*******************************************
// Test Module
module testmult (a, b, cin, prod, cout);
input [0:7] prod;
input cout;
output reg [0:3] a, b;   
output reg cin;

initial
begin
$dumpvars;
$dumpfile("HW2_mult.dump");
$monitor($time,,, "a=%b, b=%b, cin=%b, prod=%b, cout=%b", a, b, cin, prod, cout);

a[0:3] = 4'bzzzz;  
b[0:3] = 4'bzzzz; 
cin = 1'bz;  

#10 a=5; b=4; cin=0;
#10 a=5; b=4; cin=1;
#10 a=-7; b=3; cin=0;
#10 a=-7; b=3; cin=1;
#10 a=-1; b=1; cin=0;
#10 a=-1; b=1; cin=1;
#10 a=2; b=-6; cin=0;
#10 a=2; b=-6; cin=1;
#10 a=-4; b=4; cin=0;
#10 a=-4; b=4; cin=1;
#10 a=7; b=3; cin=0;
#10 a=7; b=3; cin=1;
#10 a=3; b=-4; cin=0;
#10 a=3; b=-4; cin=1;

#30 $finish;

end
endmodule