Nop Field
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OpCodes.Nop Field

Fills space if opcodes are patched. No meaningful operation is performed although a processing cycle can be consumed.

Namespace: System.Reflection.Emit
Assembly: mscorlib (in mscorlib.dll)

public static readonly OpCode Nop
public static final OpCode Nop
public static final var Nop : OpCode

The following table lists the instruction's hexadecimal and Microsoft Intermediate Language (MSIL) assembly format, along with a brief reference summary:


Assembly Format




Performs an operation without behavior.

There is no stack transitional behavior defined for this instruction.

The nop operation does nothing. It is intended to fill in space if opcodes are patched.

The following Emit method overload can use the nop opcode:

  • ILGenerator.Emit(OpCode)

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

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