OpCodes.Ldarga Field

Definition

Namespace:

System.Reflection.Emit

Assemblies:

netstandard.dll, System.Reflection.Primitives.dll

Source:

OpCodes.cs

Load an argument address onto the evaluation stack.

C#

public static readonly System.Reflection.Emit.OpCode Ldarga;

Field Value

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
FE 0A < unsigned int16 >	ldarga index	Fetch the address of argument indexed by index.

The stack transitional behavior, in sequential order, is:

1. The address addr of the argument indexed by index is pushed onto the stack.

The ldarga instruction fetches the address (of type &) of the argument indexed by index, where arguments are indexed from 0 onwards. The address addr is always aligned to a natural boundary on the target machine. The argument is stored in unmanaged memory, so the return value can be converted to an unmanaged pointer without pinning.

For procedures that take a variable-length argument list, the ldarga instruction can be used only for the initial fixed arguments, not those in the variable part of the signature.

ldarga is used for by-ref parameter passing. For other cases, Ldarg and Starg should be used.

The following Emit method overload can use the ldarga opcode:

• ILGenerator.Emit(OpCode, Int16)

Applies to