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DEC IX
DEC IY     Decrement     Rabbit 2000/3000/4000/5000 Instruction

Opcode	Instruction	Operation
DD 2B	DEC IX	IX = IX - 1
FD 2B	DEC IY	IY = IY - 1

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 2000/3000/4000	4	n/a	n/a
Rabbit 5000	4	4	2

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

Description

Decrements IX or IY.