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by Steve44
2708 days ago
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From memory the IX and IY instructions took a lot of clock cycles and I avoided them unless there was a really good reason to use them. I've just had a quick look at an instruction cycle table and it seems that without indexing they took 4 cycles more than HL then with an index that increased to 12 more. Ref from search returning http://www.z80.info/z80time.txt |
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