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NOP (No OPeration)
<Operation>
PC + 2 → PC
<Assembly-Language Format>
NOP
<Examples>
NOP
<Operand Size>
___
<Description>
This instruction only increments the program counter, causing the next instruction to be
executed. The internal state of the CPU does not change.
The NOP instruction can be used to fill in gaps in programs, or for software synchronization.
<Instruction Formats>
Addressing
mode
Mnem.
Operands
NOP
<Condition Code>
I
— — — — — — — —
I: Previous value remains unchanged.
H: Previous value remains unchanged.
N: Previous value remains unchanged.
Z: Previous value remains unchanged.
V: Previous value remains unchanged.
C: Previous value remains unchanged.
Instruction code
1st byte
2nd byte
0
0
0
0
92
H
N
Z
3rd byte
4th byte
NOP
V
C
No. of
states
2
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