class InstrMem:

    def __init__(self):
        self.instructions = []

    def decode_add(self, instruction):
        self.instructions.append(0)
        return 0

f0905fe0a24e8149d65b50edaecc44cde0069d0a
<mask token>

class InstrMem:
    <mask token>
    <mask token>

class InstrMem:
    <mask token>

    def decode_add(self, instruction):
        self.instructions.append(0)
        return 0

class InstrMem:

    def __init__(self):
        self.instructions = []

    def decode_add(self, instruction):
        self.instructions.append(0)
        return 0
