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[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 Y1 = (A[3] == B[3]) && (A[2] == B[2]) && (A[1] == B[1]) && (A[0] == B[0]);
assign Y0 = (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]);
endmodule
