_interface.py 文件源码

def use(cls, regs):
        _instruction = sys.modules.get('instruction', __import__('instruction'))

        # convert any regs that are strings into their correct object type
        regs = { _instruction.reg.by_name(r) if isinstance(r, basestring) else r for r in regs }

        # returns an iterable of bools that returns whether r is a subset of any of the registers in ``regs``.
        match = lambda r, regs=regs: any(itertools.imap(r.relatedQ, regs))

        # returns true if the operand at the specified address is related to one of the registers in ``regs``.
        def uses_register(ea, opnum):
            val = _instruction.op_value(ea, opnum)
            if isinstance(val, symbol_t):
                return any(map(match, val.__symbols__))
            return False

        return uses_register