Keil™, An ARM® Company

8051 Instruction Set Manual

NOP

The NOP instruction does nothing. Execution continues with the next instruction. No registers or flags are affected by this instruction. NOP is typically used to generate a delay in execution or to reserve space in code memory.

NOP
CACF0RS1RS0OV P
Bytes1
Cycles1
Encoding
00000000
Operation
PC = PC + 1
Example
NOP

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