mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 14:02:19 +00:00
81 lines
3.9 KiB
C#
81 lines
3.9 KiB
C#
using System;
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using CPU = Indy.IL2CPU.Assembler;
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using CPUx86 = Indy.IL2CPU.Assembler.X86;
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using System.Reflection;
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using Indy.IL2CPU.Assembler;
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namespace Cosmos.IL2CPU.X86.IL
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{
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[Cosmos.IL2CPU.OpCode(ILOpCode.Code.Unbox)]
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public class Unbox: ILOp
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{
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public Unbox(Cosmos.IL2CPU.Assembler aAsmblr):base(aAsmblr)
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{
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}
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public override void Execute(MethodInfo aMethod, ILOpCode aOpCode) {
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throw new Exception("TODO: Unbox");
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}
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// [OpCode(OpCodeEnum.Unbox)]
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// public class Unbox: Op {
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// private string mTypeIdLabel;
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// private string mThisLabel;
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// private string mNextOpLabel;
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// private Type mType;
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// private uint mCurrentILOffset;
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// private bool mDebugMode;
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// public Unbox(ILReader aReader, MethodInformation aMethodInfo)
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// : base(aReader, aMethodInfo) {
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// mType = aReader.OperandValueType;
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// if (mType == null) {
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// throw new Exception("Unable to determine Type!");
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// }
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// mThisLabel = GetInstructionLabel(aReader);
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// mNextOpLabel = GetInstructionLabel(aReader.NextPosition);
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// mCurrentILOffset = aReader.Position;
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// mDebugMode = aMethodInfo.DebugMode;
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// }
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// public override void DoAssemble() {
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// mTypeIdLabel = GetService<IMetaDataInfoService>().GetTypeIdLabel(mType);
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//
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// var xTypeSize = GetService<IMetaDataInfoService>().GetFieldStorageSize(mType);
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//
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// string mReturnNullLabel = mThisLabel + "_ReturnNull";
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// new CPUx86.Move { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect = true };
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// new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceValue = 0 };
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// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.Zero, DestinationLabel = mReturnNullLabel };
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// new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX, DestinationIsIndirect = true };
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// Assembler.StackContents.Push(new StackContent(4, typeof(uint)));
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// new CPUx86.Push { DestinationRef = ElementReference.New(mTypeIdLabel), DestinationIsIndirect=true };
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// Assembler.StackContents.Push(new StackContent(4, typeof(uint)));
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// MethodBase xMethodIsInstance = ReflectionUtilities.GetMethodBase(ReflectionUtilities.GetType("", "Indy.IL2CPU.VTablesImpl"), "IsInstance", "System.Int32", "System.Int32");
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// Op xOp = new Call(xMethodIsInstance, mCurrentILOffset, mDebugMode, mThisLabel + "_After_IsInstance_Call");
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// xOp.Assembler = Assembler;
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// xOp.SetServiceProvider(GetServiceProvider());
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// xOp.Assemble();
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// new Label(mThisLabel + "_After_IsInstance_Call");
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// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
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// Assembler.StackContents.Pop();
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// new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceValue = 0 };
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// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.Equal, DestinationLabel = mReturnNullLabel };
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// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
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// uint xSize = xTypeSize;
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// if (xSize % 4 > 0) {
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// xSize += 4 - (xSize % 4);
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// }
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// int xItems =(int) xSize /4;
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// for (int i = xItems - 1; i >= 0; i--) {
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// new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX, DestinationIsIndirect = true, DestinationDisplacement = ((i * 4) + ObjectImpl.FieldDataOffset) };
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// }
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// Assembler.StackContents.Push(new StackContent((int)xTypeSize, mType));
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// new CPUx86.Jump { DestinationLabel = mNextOpLabel };
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// new CPU.Label(mReturnNullLabel);
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// new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 4 };
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// new CPUx86.Push { DestinationValue = 0 };
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// Assembler.StackContents.Push(new StackContent(4, typeof(object)));
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// }
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// }
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// }
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}
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}
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