using System;

namespace Cosmos.IL2CPU.X86.IL
{
	[Cosmos.IL2CPU.OpCode(ILOpCode.Code.Stelem_Ref)]
	public class Stelem_Ref: ILOp
	{
		public Stelem_Ref(ILOpCode aOpCode):base(aOpCode)
		{
		}

		#region Old code
		// 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);
		// 		}
		// 	}
		// }
		#endregion Old code
	}
}