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OpCodes::Ldarga_S Field

 

Load an argument address, in short form, onto the evaluation stack.

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

public:
static initonly OpCode Ldarga_S

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

0F < unsigned int8 >

ldarga.s index

Fetch the address of argument indexed by index, short form.

The stack transitional behavior, in sequential order, is:

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

ldarga.s (the short form of ldarga) should be used for argument numbers 0 through 255, and is a more efficient encoding.

The ldarga.s 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.

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

ldarga.s is used for by-ref parameter passing. For other cases, Ldarg_S and Starg_S should be used.

The following Emit method overload can use the ldarga.s opcode:

  • ILGenerator.Emit(OpCode, byte)

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.1
Windows Phone
Available since 8.1
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