Generates the necessary flip flop inputs for a finite state machine with 3 bit state encodings

fsm_ff.py

#!/usr/bin/env python


def ff(a, b):
    if a == 0 and b == 0:
        print '0 X',
    elif a == 0 and b == 1:
        print '1 X',
    elif a == 1 and b == 0:
        print 'X 1',
    elif a == 1 and b == 1:
        print 'X 0',

present = [(0, 0, 0), (0, 0, 0), (0, 0, 1),
        (0, 0, 1), (0, 1, 0), (0, 1, 0),
        (0, 1, 1), (0, 1, 1), (1, 0, 0), (1, 0, 0)
]

next = [(0, 1, 1), (1, 0, 0), (0, 0, 1),
        (1, 0, 0), (0, 1, 0), (0, 0, 0),
        (0, 0, 1), (0, 1, 0), (0, 1, 0), (0, 1, 1)
]

bag = zip(present, next)

for each in bag:
    for i in range(3):
        ff(each[0][i], each[1][i])
    print