VOGONS


First post, by anthony

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anybody knows, is large 40 pin dip chip on 401at remarked z80 cpu or it's customized by roland version of z80?

Reply 3 of 3, by Jepael

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As the part has the Roland logo customization on it, most likely there is firmware in it.

If there was an external ROM chip, it would contain the firmware and a standard 6801 would run it.