Cosmos/source2/IL2PCU/Cosmos.IL2CPU.X86/IL/Shr.cs

using System;

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

    public override void Execute(uint aMethodUID, ILOpCode aOpCode) {
      throw new Exception("TODO:");
    }

    #region Old code
		// using System;
		// using CPU = Indy.IL2CPU.Assembler;
		// using CPUx86 = Indy.IL2CPU.Assembler.X86;
		// 
		// namespace Indy.IL2CPU.IL.X86 {
		//     // todo: Improve 8byte support
		// 	[OpCode(OpCodeEnum.Shr)]
		// 	public class Shr: Op {
		//         private string mLabelName;
		// 		public Shr(ILReader aReader, MethodInformation aMethodInfo)
		// 			: base(aReader, aMethodInfo) {
		//             mLabelName= GetInstructionLabel(aReader);
		// 		}
		// 		public override void DoAssemble() {
		//             var xStackItem_ShiftAmount = Assembler.StackContents.Pop();
		//             var xStackItem_Value = Assembler.StackContents.Pop();
		//             if (xStackItem_Value.IsFloat) { throw new NotImplementedException("Floats not yet supported!"); }
		//             if (xStackItem_Value.Size <= 4)
		//             {
		//                 new CPUx86.Pop{DestinationReg = CPUx86.Registers.EAX}; // shift amount
		//                 new CPUx86.Pop { DestinationReg = CPUx86.Registers.EBX }; // value
		//                 new CPUx86.Move { DestinationReg = CPUx86.Registers.CL, SourceReg = CPUx86.Registers.AL };
		//                 new CPUx86.ShiftRight { DestinationReg = CPUx86.Registers.EBX, SourceReg=CPUx86.Registers.CL };
		//                 new CPUx86.Push { DestinationReg = CPUx86.Registers.EBX };
		//                 Assembler.StackContents.Push(xStackItem_Value);
		//                 return;
		//             }
		//             if (xStackItem_Value.Size <= 8) {
		//                 new CPUx86.Pop { DestinationReg = CPUx86.Registers.EDX };
		//                 new CPUx86.Move { DestinationReg = CPUx86.Registers.EAX, SourceValue=0 };
		//                 new CPU.Label(mLabelName + "__StartLoop");
		//                 new CPUx86.Compare { DestinationReg = CPUx86.Registers.EDX, SourceReg=CPUx86.Registers.EAX};
		//                 new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.Equal, DestinationLabel = mLabelName + "__EndLoop" };
		//                 new CPUx86.Move { DestinationReg = CPUx86.Registers.EBX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect=true };
		//                 new CPUx86.Move { DestinationReg = CPUx86.Registers.CL, SourceValue = 1 };
		//                 new CPUx86.ShiftRight { DestinationReg = CPUx86.Registers.EBX, SourceReg = CPUx86.Registers.CL };
		//                 new CPUx86.Move { DestinationReg = CPUx86.Registers.ESP, DestinationIsIndirect=true, SourceReg = CPUx86.Registers.EBX };
		//                 new CPUx86.Move { DestinationReg = CPUx86.Registers.CL, SourceValue = 1 };
		//                 new CPUx86.RotateThroughCarryRight { DestinationReg = CPUx86.Registers.ESP, DestinationIsIndirect = true, DestinationDisplacement = 4, Size = 32, SourceReg=CPUx86.Registers.CL };
		//                 new CPUx86.Add { DestinationReg = CPUx86.Registers.EAX, SourceValue = 1 };
		//                 new CPUx86.Jump { DestinationLabel = mLabelName + "__StartLoop" };
		// 
		//                 new CPU.Label(mLabelName + "__EndLoop");
		//                 Assembler.StackContents.Push(xStackItem_Value);
		//                 return;
		//             }
		//             throw new NotImplementedException();
		// 		}
		// 	}
		// }
		#endregion Old code
	}
}