控制器发出来的信号表

运行下面这段程序，填写它打印出来的结果。

PROG = [0b00001001, 0b01000111, 0b10000011, 0b11000000]

def decode(w):
    return (w >> 6) & 3, (w >> 5) & 1, w & 31

def control(op):
    if op == 0:
        return "写-立即数"
    if op == 1:
        return "写-加法"
    if op == 2:
        return "写-减法"
    return "停机"

print("/".join(control(decode(w)[0]) for w in PROG))