OpCodes.Sub Field

Definition

Namespace:

System.Reflection.Emit

Assemblies:

netstandard.dll, System.Reflection.Primitives.dll

Source:

OpCodes.cs

Subtracts one value from another and pushes the result onto the evaluation stack.

C#

public static readonly System.Reflection.Emit.OpCode Sub;

Field Value

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
59	sub	Subtracts one value from another, returning a new numeric value.

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.

4. The result is pushed onto the stack.

Overflow is not detected for integer operations (for proper overflow handling, see Sub_Ovf).

Integer subtraction wraps, rather than saturates. For example: assuming 8-bit integers, where value1 is set to 0 and value2 is set to 1, the "wrapped" result will be 255.

Floating-point overflow returns +inf (PositiveInfinity) or -inf (NegativeInfinity).

The following Emit method overload can use the sub opcode:

• ILGenerator.Emit(OpCode)

Applies to