<ul><li>A 256 kB ROM, merging Western ROMs with Japanese fonts, for the Apple MacIntosh Plus has been uncovered by Pierre Dandumont.</li><li>The ROM was considered mythical until Pierre found it on Japanese MacIntosh Plus mainboards and successfully dumped the two 128 kB EPROMs containing the ROM image.</li><li>The special ROM utilizes an extra address line through the Vpp pin across the two ROM sockets, allowing for 256 kB capacity.</li><li>The ROM image has been validated for use on real hardware and a modified MAME build, with upcoming support for MAME releases.</li></ul>

The Lost 256 KB Japanese ROM for the MacIntosh Plus Has Been Found

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