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OpCodes.Ldarg_0 Field

Loads the argument at index 0 onto the evaluation stack.

[Visual Basic]
Public Shared ReadOnly Ldarg_0 As OpCode
[C#]
public static readonly OpCode Ldarg_0;
[C++]
public: static OpCode Ldarg_0;
[JScript]
public static var Ldarg_0 : OpCode;

Remarks

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

Format Assembly Format Description
02 ldarg.0 Load argument 0 onto stack

The stack transitional behavior, in sequential order, is:

  1. The argument value at index 0 is pushed onto the stack.

The ldarg.0 instruction is an efficient encoding for loading the argument value at index 0.

The ldarg.0 instruction pushes the argument indexed at 0 onto the evaluation stack. The ldarg.0 instruction can be used to load a value type or a primitive value onto the stack by copying it from an incoming argument. The type of the argument value is the same as the type of the argument, as specified by the current method's signature.

Arguments that hold an integer value smaller than 4 bytes long are expanded to type int32 when they are loaded onto the stack. Floating-point values are expanded to their native size (type F).

The following Emit constructor overload can use the ldarg.0 opcode:

  • ILGenerator.Emit(OpCode)

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

OpCodes Class | OpCodes Members | System.Reflection.Emit Namespace

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