def expl(sub, decimal):
    yield alu.sub.eq(sub)
    yield alu.decimal.eq(decimal)
    yield Settle()
    r = yield alu.r
    no = yield alu.no
    vo = yield alu.vo
    co = yield alu.co
    zo = yield alu.zo
    return' %02x.%c%c%c%c' % (r, 'N' if no else '-', 'V' if vo else '-', 'C' if co else '-', 'Z' if zo else '-')

def clocking_proc():
    for i in range(0x20000):
        r = '%02d %02x %c' % (i & 0xff, (i >> 8) & 0xff, 'C' if i & 0x10000 else '-')
        yield alu.i1.eq(i & 0xff)
        yield alu.i2.eq(i >> 8)
        yield alu.ci.eq(i >> 16)
        r += expl(0, 0)
        r += expl(0, 1)
        r += expl(1, 0)
        r += expl(1, 1)
        print(r)
    sys.exit(0)