通过

  • 项目

OpCodes.Shl Field

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Shifts an integer value to the left (in zeroes) by a specified number of bits, pushing the result onto the evaluation stack.

Namespace:  System.Reflection.Emit
Assembly:  mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public Shared ReadOnly Shl As OpCode

public static readonly OpCode Shl

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

62

shl

Shifts an integer to the left (shifting in zeros).

The stack transitional behavior, in sequential order, is:

  1. A value is pushed onto the stack.

  2. The amount of bits to be shifted is pushed onto the stack.

  3. The number of bits to be shifted and the value are popped from the stack; the value is shifted left by the specified number of bits.

  4. The result is pushed onto the stack.

The shl instruction shifts the value (type int32, int64 or native int) left by the specified number of bits. The number of bits is a value of type int32 or native int. The return value is unspecified if the number of bits to be shifted is greater than or equal to the width (in bits) of the supplied value.

Shl inserts a zero bit in the lowest position on each shift.

The following Emit method overload can use the shl opcode:

  • ILGenerator.Emit(OpCode)

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.