Cosmos/source/Compiler/Indy.IL2CPU.X86/IL/x86/Stelem_Ref.cs
mterwoord_cp acaa8e0a89
2009-10-17 13:45:47 +00:00

82 lines
No EOL
4.3 KiB
C#

//using System;
//using System.IO;
//using CPU = Indy.IL2CPU.Assembler;
//using CPUx86 = Indy.IL2CPU.Assembler.X86;
//using Indy.IL2CPU.Assembler;
//namespace Indy.IL2CPU.IL.X86 {
// [OpCode(OpCodeEnum.Stelem_Ref)]
// public class Stelem_Ref: Op {
// private string mNextLabel;
// private string mCurLabel;
// private uint mCurOffset;
// private MethodInformation mMethodInformation;
// public Stelem_Ref(ILReader aReader, MethodInformation aMethodInfo)
// : base(aReader, aMethodInfo) {
// mMethodInformation = aMethodInfo;
// mCurOffset = aReader.Position;
// mCurLabel = IL.Op.GetInstructionLabel(aReader);
// mNextLabel = IL.Op.GetInstructionLabel(aReader.NextPosition);
// }
// public static void Assemble(CPU.Assembler aAssembler, uint aElementSize, IServiceProvider aServiceProvider, string aCurrentLabel, MethodInformation aCurrentMethodInfo, uint aCurrentOffset, string aNextLabel) {
// // stack - 3 == the array
// // stack - 2 == the index
// // stack - 1 == the new value
// uint xStackSize = aElementSize;
// if (xStackSize % 4 != 0) {
// xStackSize += 4 - xStackSize % 4;
// }
// new CPUx86.Push { DestinationReg = CPUx86.Registers.ESP, DestinationIsIndirect = true, DestinationDisplacement = (int)(xStackSize + 4) };
// new CPUx86.Call { DestinationLabel = IL2CPU.Assembler.MethodInfoLabelGenerator.GenerateLabelName(GCImplementationRefs.DecRefCountRef) };
// new CPUx86.Move { DestinationReg = CPUx86.Registers.EBX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect = true, SourceDisplacement = (int)xStackSize }; // the index
// new CPUx86.Move { DestinationReg = CPUx86.Registers.ECX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect = true, SourceDisplacement = (int)xStackSize + 4 }; // the index
// new CPUx86.Add { DestinationReg = CPUx86.Registers.ECX, SourceValue = (uint)(ObjectImpl.FieldDataOffset + 4) };
// new CPUx86.Push { DestinationValue = aElementSize };
// aAssembler.StackContents.Push(new StackContent(4, true, false, true));
// new CPUx86.Push { DestinationReg = CPUx86.Registers.EBX };
// aAssembler.StackContents.Push(new StackContent(4, true, false, true));
// Multiply(aAssembler, aServiceProvider,
// aCurrentLabel, aCurrentMethodInfo, aCurrentOffset, aNextLabel);
// new CPUx86.Push { DestinationReg = CPUx86.Registers.ECX };
// aAssembler.StackContents.Push(new StackContent(4, true, false, true));
// Add(aAssembler, aServiceProvider, aCurrentLabel, aCurrentMethodInfo, aCurrentOffset, aNextLabel);
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.ECX };
// aAssembler.StackContents.Pop();
// for (int i = (int)(aElementSize / 4) - 1; i >= 0; i -= 1) {
// new CPU.Comment("Start 1 dword");
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX };
// new CPUx86.Move { DestinationReg = CPUx86.Registers.ECX, DestinationIsIndirect = true, SourceReg = CPUx86.Registers.EBX };
// new CPUx86.Add { DestinationReg = CPUx86.Registers.ECX, SourceValue = 4 };
// }
// switch (aElementSize % 4) {
// case 1: {
// new CPU.Comment("Start 1 byte");
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX };
// new CPUx86.Move { DestinationReg = CPUx86.Registers.ECX, DestinationIsIndirect = true, SourceReg = CPUx86.Registers.BL };
// break;
// }
// case 2: {
// new CPU.Comment("Start 1 word");
// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX };
// new CPUx86.Move { DestinationReg = CPUx86.Registers.ECX, DestinationIsIndirect = true, SourceReg = CPUx86.Registers.BX };
// break;
// }
// case 0: {
// break;
// }
// default:
// throw new Exception("Remainder size " + (aElementSize % 4) + " not supported!");
// }
// new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 0x8 };
// aAssembler.StackContents.Pop();
// aAssembler.StackContents.Pop();
// aAssembler.StackContents.Pop();
// }
// public override void DoAssemble() {
// Assemble(Assembler, 4, GetServiceProvider(), mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
// }
// }
//}