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https://github.com/a2-4am/passport.py.git
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26 lines
897 B
Python
26 lines
897 B
Python
from passport.patchers import Patch, Patcher
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from passport.util import *
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class BadEmuPatcher(Patcher):
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"""RWTS checks for timing bit by checking if data latch is still $D5 after waiting "too long" but this confuses legacy emulators (AppleWin, older versions of MAME) so we patch it for compatibility
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tested on
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- Dino Dig
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- Make A Face
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"""
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def should_run(self, track_num):
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return self.g.is_rwts and (track_num == 0)
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def run(self, logical_sectors, track_num):
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if not find.at(0x4F, logical_sectors[3],
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b'\xBD\x8C\xC0'
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b'\x10\xFB'
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b'\xC9\xD5'
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b'\xD0\xF0'
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b'\xEA'
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b'\xBD\x8C\xC0'
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b'\xC9\xD5'
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b'\xF0\x12'): return []
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return [Patch(0, 3, 0x58, b'\xF0\x06')]
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return patches
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