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

Opcode	Instruction	Clocks	Operation
DD 2B	DEC IX	4 (2,2)	IX = IX - 1
FD 2B	DEC IY	4 (2,2)	IY = IY - 1

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

Description

Decrements IX or IY.