Changes
Z80
,/* DD or FD-prefixed opcodes */
Same for the FD prefix but with IY instead of IX.
There are 2 3 exceptions:* The In the instruction EX DE,HL is , HL will not modified by these prefixes be replaced with IX or IY* If (HL) and execute as usualL or H are used in the same instruction, L and H are not replaced with IXL or IXH. For instance LD L,(IX+d) stores the content of (IX+d) into L, not IXL
* The ED prefix cancels the effects of preceding DD or FD prefixes, so sequences of DD ED op or FD ED op execute as regular ED op.
