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The Zilog Z80 microprocessor. Prefer [game-boy] instead for questions about the Game Boy CPU nicknamed the ‘GBZ80’.

The Z80 8-bit microprocessor was introduced by Zilog in 1976.

Its instruction set is a superset of the , with several additional registers and a few backwards-incompatible modifications to instruction timing.

Use in preference to both this tag and to ask questions about the Sharp LR35902/SM83 CPU (nicknamed the ‘GBZ80’) found in the Game Boy.

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