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Python Status.update方法代码示例

本文整理汇总了Python中status.Status.update方法的典型用法代码示例。如果您正苦于以下问题:Python Status.update方法的具体用法?Python Status.update怎么用?Python Status.update使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在status.Status的用法示例。


在下文中一共展示了Status.update方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: CPU

# 需要导入模块: from status import Status [as 别名]
# 或者: from status.Status import update [as 别名]

#.........这里部分代码省略.........
    def get_memory(self, location: int, num_bytes: int=1) -> int:
        """
        returns a byte from a given memory location
        """
        memory_owner = self._get_memory_owner(location)
        return memory_owner.get(location, num_bytes)

    def _get_memory_owner(self, location: int) -> MemoryOwnerMixin:
        """
        return the owner of a memory location
        """
        # check if memory owner
        for memory_owner in self.memory_owners:
            if memory_owner.memory_start_location <= location <= memory_owner.memory_end_location:
                return memory_owner

        raise Exception('Cannot find memory owner')

    def set_memory(self, location: int, value: int, num_bytes: int=1):
        """
        sets the memory at a location to a value
        """
        memory_owner = self._get_memory_owner(location)
        memory_owner.set(location, value, num_bytes)

    def set_stack_value(self, value: int, num_bytes: int):
        """
        sets a value on the stack, and decrements the stack pointer
        """
        # store the value on the stack
        self.set_memory(self.stack_offset + self.sp_reg, value, num_bytes=num_bytes)

        # increases the size of the stack
        self.sp_reg -= np.uint8(num_bytes)

    def get_stack_value(self, num_bytes: int):
        """
        gets a value on the stack, and increments the stack pointer
        """
        # decrease the size of the stack
        self.sp_reg += np.uint8(num_bytes)

        # grab the stored value from the stack
        return self.get_memory(self.stack_offset + self.sp_reg, num_bytes=num_bytes)

    def load_rom(self, rom: ROM, testing):
        # unload old rom
        if self.rom is not None:
            self.memory_owners.remove(self.rom)

        # load rom
        self.rom = rom

        # load the rom program instructions into memory
        self.memory_owners.append(self.rom)

        if testing:
            self.pc_reg = np.uint16(0xC000)
        else:
            self.pc_reg = np.uint16(int.from_bytes(self.get_memory(0xFFFC, 2), byteorder='little'))

    def identify(self):
        # get the current byte at pc
        rom_instruction = True
        self.instruction_byte = self._get_memory_owner(self.pc_reg).get(self.pc_reg)
        if type(self.instruction_byte) is not bytes:
            rom_instruction = False
            self.instruction_byte = bytes([self.instruction_byte])

        # turn the byte into an Instruction
        self.instruction = self.instructions.get(self.instruction_byte, None)  # type: Instruction
        if self.instruction is None:
            raise Exception('Instruction not found: {}'.format(self.instruction_byte.hex()))

        # get the data bytes
        if rom_instruction:
            self.data_bytes = self.rom.get(self.pc_reg + np.uint16(1), self.instruction.data_length)
        else:
            if self.instruction.data_length > 0:
                self.data_bytes = bytes([self.get_memory(self.pc_reg + np.uint16(1), self.instruction.data_length)])
            else:
                self.data_bytes = bytes()

        # print out diagnostic information
        # example: C000  4C F5 C5  JMP $C5F5                       A:00 X:00 Y:00 P:24 SP:FD CYC:  0
        print('{}, {}, {}, A:{}, X:{}, Y:{}, P:{}, SP:{}'.format(hex(self.pc_reg),
                                                                 (self.instruction_byte + self.data_bytes).hex(),
                                                                 self.instruction.__name__, hex(self.a_reg),
                                                                 hex(self.x_reg), hex(self.y_reg),
                                                                 hex(self.status_reg.to_int()), hex(self.sp_reg)))

    def execute(self):

        # increment the pc_reg
        self.pc_reg += np.uint16(self.instruction.get_instruction_length())

        # we have a valid instruction class
        value = self.instruction.execute(self, self.data_bytes)

        self.status_reg.update(self.instruction, value)
开发者ID:PyAndy,项目名称:Py3NES,代码行数:104,代码来源:cpu.py


注:本文中的status.Status.update方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。