Homework Sourseplease Verilog code for BCD to Excess3 Code convertor for de
please Verilog code for BCD to Excess-3 Code convertor for decimal zero to eleven (0 to 11)
and please test bench code too..
example 0000 0000 -> 0000 0011
0000 0001 -> 0000 0100
to 0001 0001 ->
please Verilog code for BCD to Excess-3 Code convertor for decimal zero to eleven (0 to 11)
and please test bench code too..
example 0000 0000 -> 0000 0011
0000 0001 -> 0000 0100
to 0001 0001 ->
Solution
module try(BCD, EXC);
input [3:0] BCD;
output [3:0] EXC;
not(w1,BCD[3]);
not(w2,BCD[2]);
not(w3,BCD[1]);
not(w4,BCD[0]);
and(w5,w1,BCD[2],w3,BCD[0]);
and(w6,BCD[3],w2,BCD[1]);
and(w7,BCD[1],BCD[2]);
and(w8,BCD[3],w3);
or(EXC[3],w5,w6,w7,w8);
and(w9,w1,BCD[2],w3,w4);
and(w10,w2,w3,BCD[0]);
and(w11,w2,BCD[1]);
and(w12,BCD[3],BCD[2]);
or(EXC[2],w9,w10,w11,w12);
and(w13,w3,w4);
and(w14,BCD[1],BCD[0]);
or(EXC[1],w13,w14);
and(w15,BCD[1],w4);
or(EXC[0],w13,w15);
endmodule
