Heath H89 IO Decoder MMS 444-61c PROM

MAME: 0.280 - Released: 2025-08-29T21:26:57 - Machines: 48893 - rom: 364836 - disk: 1378 - Lists: 731 - Software: 139884 - rom: 236863 - disk: 11396

machine AO ? name sourcefile sampleof isbios isdevice ismechanical runnable description year manufacturer cloneof romof MachineGenreId h89bus_io_decoder_mms_61c devices/bus/heathzenith/h89/h89bus.cpp   no yes no no Heath H89 IO Decoder MMS 444-61c PROM         System / Device

rom name size crc sha1 region offset status optional merge bios 444-61c.u550 256 e7122061 33c124f44c0f9cb99c9b17ad15411b4bc6407eae io_decode 0 good no

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