题解 | #优先编码器电路①#
优先编码器电路①
https://www.nowcoder.com/practice/0594ed5303ad48a19aed90bc48839d00
`timescale 1ns/1ns
module encoder_0(
input [8:0] I_n ,
output reg [3:0] Y_n
);
reg [8:0] I;
wire [8:0] I_nn = ~I_n;
integer i;
always@(*) begin
for(i=0;i<9;i++)
I[i] = I_nn[8-i];
end
wire [8:0] one_hot = I & (~(I)+1'b1);
always@(*) begin
Y_n[0] = ~(one_hot[8] | one_hot[6] | one_hot[4] | one_hot[2] | one_hot[0]);
Y_n[1] = ~(one_hot[6] | one_hot[5] | one_hot[2] | one_hot[1] );
Y_n[2] = ~(one_hot[4] | one_hot[3] | one_hot[2] | one_hot[1]);
Y_n[3] = ~ one_hot[0] ;
end
endmodule
牛客的题真的··········能不能好好校对一下
