题解 | #4位数值比较器电路#

`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 = (B[3]&(~A[3]))|(~(A[3]^B[3]))&(B[2]&(~A[2]))|((~(A[3]^B[3]))&(~(A[2]^B[2]))&(B[1]&(~A[1])))|((~(A[3]^B[3]))&(~(A[2]^B[2]))&(~(A[1]^B[1]))&(B[0]&(~A[0])));
endmodule

累鼠我了这道题