OpCodes.Add Field
Assembly: mscorlib (in mscorlib.dll)
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 |
|---|---|---|
| 58 | add | Adds two numeric values, returning a new numeric value. |
The stack transitional behavior, in sequential order, is:
-
value1 is pushed onto the stack.
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value2 is pushed onto the stack.
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value2 and value1 are popped from the stack; value1 is added to value2.
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The result is pushed onto the stack.
Overflow is not detected for integer operations (for proper overflow handling, see Add_Ovf).
Integer addition wraps, rather than saturates. For example, assuming 8-bit integers where value1 is set to 255 and value2 is set to 1, the wrapped result is 0 rather than 256.
Floating-point overflow returns +inf (PositiveInfinity) or -inf (NegativeInfinity).
The acceptable operand types and their corresponding result data type are listed in the table below. If there is no entry for a particular type combination (for example, int32 and float; int32 and int64), it is an invalid Microsoft Intermediate Language (MSIL) and generates an error.
| operand | value1 type | value2 type | result type |
|---|---|---|---|
| add | int32 | int32 | int32 |
| add | int32 | natural int | natural int |
| add | int32 | & | & |
| add | int32 | * | * |
| add | int64 | int64 | int64 |
| add | natural int | int32 | natural int |
| add | natural int | natural int | natural int |
| add | natural int | & | & |
| add | natural int | * | * |
| add | F | F | F |
| add | & | int32 | & |
| add | & | natural int | & |
| add | * | int32 | * |
| add | * | natural int | * |
The following Emit method overload can use the add opcode:
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ILGenerator.Emit(OpCode)
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
