OR (IX+d)
OR (IY+d)     Bitwise OR     Rabbit 2000/3000/4000 Instruction

Opcode	Instruction	Clocks	Operation
DD B6 d	OR (IX+d)	9 (2,2,2,1,2)	A = A | (IX + d)
FD B6 d	OR (IY+d)	9 (2,2,2,1,2)	A = A | (IY + d)

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

Description

Performs a bitwise OR between A and the data whose address is

• the sum of the data in IX and the 8-bit signed displacement d, or
• the sum of the data in IY and the 8-bit signed displacement d.

The result is stored in A.

The Rabbit 4000 assembler views "OR A,(IX+d)" and "OR (IX+d)" as equivalent instructions. The same is true for "OR A,(IX+d)" and "OR (IX+d)."

Example

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

OR (IX+d)

would result in A containing 1110 1101.