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TEST     Test for Zero     Rabbit 4000/5000 Instruction

Opcode	Instruction	Operation
ED 4C	TEST BC	BC | 0
DD 5C	TEST BCDE	BCDE | 0
DD 4C	TEST IX	IX | 0
FD 4C	TEST IY	IY | 0
FD 5C	TEST JKHL	JKHL | 0

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 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
·	·	L	0	·

Description

These instructions test registers for zero by performing a bitwise OR of the register and zero.