Class V128ShiftInstruction<TLane>

Base class for vector shift instructions. The shift count is taken modulo the lane width.

Assembly: WaaS.Core.dll

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Declaration

public abstract class V128ShiftInstruction<TLane> : Instruction where TLane : unmanaged

Inheritance: System.Object -> WaaS.Models.Instruction

Derived:

Expand

WaaS.Models.ShlI16x8, WaaS.Models.ShlI32x4, WaaS.Models.ShlI64x2, WaaS.Models.ShlI8x16, WaaS.Models.ShrI16x8S, WaaS.Models.ShrI16x8U, WaaS.Models.ShrI32x4S, WaaS.Models.ShrI32x4U, WaaS.Models.ShrI64x2S, WaaS.Models.ShrI64x2U, WaaS.Models.ShrI8x16S, WaaS.Models.ShrI8x16U

Methods

Execute(WasmStackFrame)

Executes the instruction.

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Declaration

public override void Execute(WasmStackFrame current)

Parameters

Type	Name
WaaS.Runtime.WasmStackFrame	current

OperateLane(TLane, int)

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Declaration

protected abstract TLane OperateLane(TLane value, int shift)

Returns

<TLane>

Parameters

Type	Name
<TLane>	value
System.Int32	shift

PreValidateStackState(in ValidationContext)

Get the number of values to pop and push from the stack to validate stack depth.

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Declaration

public override (uint popCount, uint pushCount) PreValidateStackState(in ValidationContext context)

Returns

System.ValueTuple<System.UInt32,System.UInt32>

Parameters

Type	Name
WaaS.Models.ValidationContext	context

ValidateStackState(in ValidationContext, ref ValidationBlockStackState)

Simulates stack operations to validate the stack state.

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Declaration

public override void ValidateStackState(in ValidationContext context, ref ValidationBlockStackState stackState)

Parameters

Type	Name
WaaS.Models.ValidationContext	context
WaaS.Models.ValidationBlockStackState	stackState