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Why does the Z80 include the RLD and RRD instructions?

The other answers all mentioned indeed that it is for BCD operations. What they all forgot to mention is why it is worthwhile to implement these complex instructions. Simply for multiplying/dividing ...

Patrick Schlüter

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answered Sep 19 at 10:41

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New answers tagged z80

Why does the Z80 include the RLD and RRD instructions?

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