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NOP -- No Operation
Opcode Instruction Clocks Description
90 NOP 3 No operation
Description
NOP performs no operation. NOP is a one-byte instruction that takes up space but affects none of the machine context except (E)IP.
NOP is an alias mnemonic for the XCHG (E)AX, (E)AX instruction.
Flags Affected
None
Protected Mode Exceptions
None
Real Address Mode Exceptions
None
Virtual 8086 Mode Exceptions
None
up: Chapter 17 -- 80386 Instruction Set
prev: NEG Two's Complement Negation
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