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39 lines
890 B
Python
39 lines
890 B
Python
"""Representation of Apple II + player virtual machine state."""
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from typing import Iterator
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import numpy as np
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import screen
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class Machine:
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"""Represents Apple II and player virtual machine state."""
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def __init__(
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self,
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memmap: screen.MemoryMap,
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update_priority: np.array
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):
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self.page = 0x20 # type: int
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self.content = 0x7f # type: int
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self.memmap = memmap # type: screen.MemoryMap
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self.update_priority = update_priority # type: np.array
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def emit(self, opcode: "Opcode") -> Iterator[int]:
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"""
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:param opcode:
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:return:
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"""
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cmd = opcode.emit_command(opcode)
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if cmd:
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yield from cmd
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data = opcode.emit_data()
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if data:
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yield from data
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# Update changes in memory map, if any
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opcode.apply(self)
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