using System;
using CPUx86 = Cosmos.IL2CPU.X86;
namespace Cosmos.IL2CPU.X86.IL
{
    [Cosmos.IL2CPU.OpCode( ILOpCode.Code.Conv_Ovf_I8 )]
    public class Conv_Ovf_I8 : ILOp
    {
        public Conv_Ovf_I8( Cosmos.IL2CPU.Assembler aAsmblr )
            : base( aAsmblr )
        {
        }

        public override void Execute( MethodInfo aMethod, ILOpCode aOpCode )
        {
            var xSource = Assembler.Stack.Pop();
            switch( xSource.Size )
            {
                case 1:
                case 2:
                case 4:
                    new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
                    new CPUx86.SignExtendAX { Size = 32 };
                    new CPUx86.Push { DestinationReg = CPUx86.Registers.EDX };
                    new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
                    break;
                case 8:
                    new CPUx86.Noop();
                    break;
                default:
                    //EmitNotImplementedException( Assembler, GetServiceProvider(), "Conv_Ovf_I8: SourceSize " + xSource + " not supported!", mCurLabel, mMethodInformation, mCurOffset, mNextLabel );
                    throw new NotImplementedException();
            }
            Assembler.Stack.Push( 8, true, false, true );
        }


        // using System;
        // 
        // using CPUx86 = Cosmos.IL2CPU.X86;
        // using Cosmos.IL2CPU.X86;
        // 
        // namespace Indy.IL2CPU.IL.X86 {
        // 	[OpCode(OpCodeEnum.Conv_Ovf_I8)]
        // 	public class Conv_Ovf_I8: Op {
        //         private string mNextLabel;
        // 	    private string mCurLabel;
        // 	    private uint mCurOffset;
        // 	    private MethodInformation mMethodInformation;
        // 		public Conv_Ovf_I8(ILReader aReader, MethodInformation aMethodInfo)
        // 			: base(aReader, aMethodInfo) {
        //              mMethodInformation = aMethodInfo;
        // 		    mCurOffset = aReader.Position;
        // 		    mCurLabel = IL.Op.GetInstructionLabel(aReader);
        //             mNextLabel = IL.Op.GetInstructionLabel(aReader.NextPosition);
        // 		}
        // 		public override void DoAssemble() {
        //             var xSource = Assembler.Stack.Pop();
        //             switch (xSource.Size)
        //             {
        //                 case 1:
        //                 case 2:
        //                 case 4:
        //                     new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
        //                     new CPUx86.SignExtendAX { Size = 32 };
        //                     new CPUx86.Push { DestinationReg = CPUx86.Registers.EDX };
        //                     new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
        //                     break;
        //                 case 8:
        //                     new CPUx86.Noop();
        //                     break;
        //                 default:
        //                     EmitNotImplementedException(Assembler, GetServiceProvider(), "Conv_Ovf_I8: SourceSize " + xSource + " not supported!", mCurLabel, mMethodInformation, mCurOffset, mNextLabel);
        //                     break;
        //             }
        //             Assembler.Stack.Push(new StackContent(8, true, false, true));
        // 		}
        // 	}
        // }

    }
}