n indicates the flip-flop states 2n
Truth table 0000
0001
0011
0111
1111
1110
1100
1000
0000 out<=out<<1;
out[0]<=out[3];
n indicates the flip-flop states 2n
Truth table 0000
0001
0011
0111
1111
1110
1100
1000
0000 out<=out<<1;
out[0]<=out[3];