传送门:
Exams/ece241 2013 q4 - HDLBits (01xz.net)https://hdlbits.01xz.net/wiki/Exams/ece241_2013_q4
代码:
module top_module (
input clk,
input reset,
input [3:1] s,
output fr3,
output fr2,
output fr1,
output dfr
);
parameter S0=0,S1=1,S2=2,S3=3;
reg [1:0] state,next_state;
always @(*) begin
if (s[1]&s[2]&s[3])
next_state = S3;