EXX     Exchange     Rabbit 2000/3000/4000 Instruction

Opcode	Instruction	Clocks	Operation
D9	EXX	2	BC <-> BC' DE <-> DE' HL <-> HL' JK <-> JK'     (Rabbit 4000 only)

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

Description

Exchanges BC, DE, and HL, with their respective alternate registers, BC', DE', and HL'.

If using the Rabbit 4000, this instructions also exchanges JK with its alternate JK'.