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OpCodes.Sub_Ovf Field

Subtracts one integer value from another, performs an overflow check, and pushes the result onto the evaluation stack.

[Visual Basic]
Public Shared ReadOnly Sub_Ovf As OpCode
[C#]
public static readonly OpCode Sub_Ovf;
[C++]
public: static OpCode Sub_Ovf;
[JScript]
public static var Sub_Ovf : 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
DA sub.ovf Subtracts one integer value from another with an overflow check.

The stack transitional behavior, in sequential order, is:

  1. value1 is pushed onto the stack.
  2. value2 is pushed onto the stack.
  3. value2 and value1 are popped from the stack; value2 is subtracted from value1 with a check for overflow.
  4. The result is pushed onto the stack.

OverflowException is thrown if the result can not be represented in the result type.

This operation is performed on signed integers; for floating-point values, use Sub.

The following Emit constructor overload can use the sub.ovf 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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