Expand Minimize
This topic has not yet been rated - Rate this topic

OpCodes.Ldelem_I1 Field

April 12, 2014

Loads the element with type int8 at a specified array index onto the top of the evaluation stack as an int32.

Namespace:  System.Reflection.Emit
Assembly:  mscorlib (in mscorlib.dll)
'Declaration
Public Shared ReadOnly Ldelem_I1 As OpCode

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

90

ldelem.i1

Loads the element with type int8 at index onto the top of the stack as an int32.

The stack transitional behavior, in sequential order, is:

  1. An object reference array is pushed onto the stack.

  2. An index value index is pushed onto the stack.

  3. index and array are popped from the stack; the value stored at position index in array is looked up.

  4. The value is pushed onto the stack.

The ldelem.i1 instruction loads the value of the element with index index (type native int) in the zero-based one-dimensional array array and places it on the top of the stack. Arrays are objects and hence represented by a value of type O.

The return value for ldelem.i1 is int8.

Note that integer values of less than 4 bytes are extended to int32 (not native int) when they are loaded onto the evaluation stack.

NullReferenceException is thrown if array is a null reference.

ArrayTypeMismatchException is thrown if array does not hold elements of the required type.

IndexOutOfRangeException is thrown if index is negative, or larger than the bound of array.

The following Emit method overload can use the ldelem.i1 opcode:

  • ILGenerator.Emit(OpCode)

Windows Phone OS

Supported in: 8.1, 8.0, 7.1

Windows Phone

Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft. All rights reserved.