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XOR (IX+d)
XOR (IY+d)     Exclusive OR     Rabbit 2000/3000/4000/5000 Instruction

Opcode	Instruction	Operation
DD AE d	XOR (IX+d)	A = [A & ~(IX + d)] | [~A & (IX + d)]
FD AE d	XOR (IY+d)	A = [A & ~(IY + d)] | [~A & (IY + d)]

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 2000/3000/4000	9	n/a	n/a
Rabbit 5000	10	9	8

Flags				ALTD			IOI/IOE
S	Z	L/V	C	F	R	SP	S	D
·	·	L	0	·	·		·

Description

Performs an exclusive OR operation between A and the data whose address is:

• the sum of IX and the 8-bit signed displacement d, or

• the sum of IY and d

The result is stored in A.

The Rabbit 4000/5000 assemblers view "XOR A,(IX+d)" and "XOR (IX+d)" as equivalent instructions. The same is true for "XOR A,(IY+d)" and "XOR (IY+d)."

Example

If the sum of IX and d is 0x4000 and the memory location 0x4000 contains the byte 1001 0101 and A contains the byte 0101 0011 then the execution of the instruction

XOR (IX+d)

would result in the byte in A becoming 1100 0110.