System.Reflection.Emit.OpCodes.Ldarga_S Field

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

Syntax

public static readonly OpCode Ldarga_S

Remarks

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

0F < unsigned int8 >

ldarga.s index

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

The stack transitional behavior, in sequential order, is:

[The 'ordered' type of list has not been implemented in the ECMA stylesheet.]

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, OpCodes.Ldarg_S and OpCodes.Starg_S should be used.

The following ILGenerator.Emit(OpCode) method overload can use the ldarga.s opcode:

  • ILGenerator.Emit(OpCode, byte)

Requirements

Namespace: System.Reflection.Emit
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0