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[SC64][SW] Added ED style save type autodetection

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This commit is contained in:
Mateusz Faderewski 2023-02-10 20:24:01 +01:00
parent a8a3e7d57c
commit 9fbff668c7
1 changed files with 27 additions and 4 deletions
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31
sw/pc/sc64.py
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@ -385,6 +385,25 @@ class SC64:
if (self.__read_memory(address, len(data)) != data): if (self.__read_memory(address, len(data)) != data):
raise ConnectionException('Flash memory program failure') raise ConnectionException('Flash memory program failure')
def autodetect_save_type(self, data: bytes) -> Optional[SaveType]:
if (len(data) < 0x40):
return None
if (data[0x3C:0x3E] != b'ED'):
return None
save = (data[0x3F] >> 4) & 0x0F
if (save < 0 or save > 6):
return None
save_type_mapping = [
self.SaveType.NONE,
self.SaveType.EEPROM_4K,
self.SaveType.EEPROM_16K,
self.SaveType.SRAM,
self.SaveType.SRAM_BANKED,
self.SaveType.FLASHRAM,
self.SaveType.SRAM,
]
return save_type_mapping[save]
def reset_state(self) -> None: def reset_state(self) -> None:
self.__link.execute_cmd(cmd=b'R') self.__link.execute_cmd(cmd=b'R')
@ -822,6 +841,7 @@ if __name__ == '__main__':
try: try:
sc64 = SC64() sc64 = SC64()
autodetected_save_type = None
if (args.backup_firmware): if (args.backup_firmware):
with open(args.backup_firmware, 'wb') as f: with open(args.backup_firmware, 'wb') as f:
@ -874,12 +894,15 @@ if __name__ == '__main__':
if (args.rom): if (args.rom):
with open(args.rom, 'rb') as f: with open(args.rom, 'rb') as f:
print('Uploading ROM... ', end='', flush=True) print('Uploading ROM... ', end='', flush=True)
sc64.upload_rom(f.read(), use_shadow=args.no_shadow) rom_data = f.read()
sc64.upload_rom(rom_data, use_shadow=args.no_shadow)
autodetected_save_type = sc64.autodetect_save_type(rom_data)
print('done') print('done')
if (args.save_type != None): if (args.save_type != None or autodetected_save_type != None):
sc64.set_save_type(args.save_type) save_type = args.save_type if args.save_type != None else autodetected_save_type
print(f'Save type set to [{args.save_type.name}]') sc64.set_save_type(save_type)
print(f'Save type set to [{save_type.name}]{" (autodetected)" if autodetected_save_type != None else ""}')
if (args.save): if (args.save):
with open(args.save, 'rb') as f: with open(args.save, 'rb') as f: