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 Y2 = A[3] & (!B[3]) | (~(A[3] ^ B[3])) & ((A[2] & (!B[2])) | ((~(A[2] ^ B[2]))) & ((A[1] & (!B[1])) | ((~(A[1] ^ B[1])) & (A[0] & (!B[0])))));
assign Y1 = (~(A[3] ^ B[3])) & (~(A[2] ^ B[2])) & (~(A[1] ^ B[1])) & (~(A[0] ^ B[0]));
assign Y0 = B[3] & (!A[3]) | (~(B[3] ^ A[3])) & ((B[2] & (!A[2])) | ((~(B[2] ^ A[2]))) & ((B[1] & (!A[1])) | ((~(B[1] ^ A[1])) & (B[0] & (!A[0])))));
endmodule
