module full_adder(a,b,cin,out,carry);input a,b,cin;output out,carry;reg out,carry;reg t1,t2,t3;always@          (a or b or cin)begin          out   =    a^b^cin;          t1    =    a&cin;          t2    =    b&cin;          t3    =    a&b;          carry =    t1|t2|t3;          endendmodule