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OR (HL)     Bitwise OR     Rabbit 4000/5000 Instruction

Opcode	Instruction	Operation
7F B6	OR (HL)	A = A | (HL)

Clocks	8-Bit Access	16-Bit Unaligned	16-Bit Aligned
Rabbit 4000	7	n/a	n/a
Rabbit 5000	5	5	5

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

Description

Performs a bitwise OR operation between A and the data whose address is in HL. The result is stored in A.

The Rabbit 4000/5000 assemblers view "OR A,(HL)" and "OR (HL)" as equivalent instructions.

The opcode for these instructions is different than the same instructions in the Rabbit 2000, 3000 and 3000A.

Example

If the byte in A is 0100 1100 and the byte in the memory location pointed to by HL is 1110 0101, the operation:

OR (HL)

would result in A containing 1110 1101.