题解 | #4位数值比较器电路#
4位数值比较器电路
https://www.nowcoder.com/practice/e02fde10f1914527b6b6871b97aef86d
`timescale 1ns/1ns
module comparator_4(
input [3:0] A ,
input [3:0] B ,
output wire Y2 , //A>B
output wire Y1 , //A=B
output wire Y0 //A<B
);
assign Y1=!(A[3]^B[3])&!(A[2]^B[2])&!(A[1]^B[1])&!(A[0]^B[0]);
assign Y2=(A[3]&(!B[3]))|((!(A[3]^B[3]))&(A[2]&!B[2]))|((!(A[3]^B[3]))&(!(A[2]^B[2]))&A[1]&!B[1])|((!(A[3]^B[3]))&(!(A[2]^B[2]))&(!(A[1]^B[1]))&A[0]&!B[0]);
assign Y0=!Y2^Y1;
endmodule
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