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MICROPROCESSOR INSTRUCTION REFERENCE->OR

OR      Logical (inclusive) OR Accumulator with Memory
ORA
ORB


A <- A 'or' M  or  B <- B 'or' M

Condition Code Register:

H  Not affected
N  Set if result Negative, else cleared
Z  Set if result Zero, else cleared
V  Always cleared
C  Not affected

    

Addressing mode	No of cycles	No of bytes
Immed.:	2	2
Direct:	4	2
Extended:	5	3
Index/Indirect:	4+	2+