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MICROPROCESSOR INSTRUCTION REFERENCE->COM

COM     Logical Complement Accumulator or Memory
COMA
COMB
COM

A <- complement A or
B <- complement B or
M <- complement 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  Always set

    
Addressing modeNo of cyclesNo of bytes
Inherent:21
Direct:62
Extended:73
Index/Indirect:6+2+