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

using System;

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

		#region Old code
		// using System;
		// using System.Linq;
		// 
		// using CPU = Indy.IL2CPU.Assembler;
		// using CPUx86 = Indy.IL2CPU.Assembler.X86;
		// using Indy.IL2CPU.Assembler;
		// 
		// namespace Indy.IL2CPU.IL.X86 {
		// 	[OpCode(OpCodeEnum.Ceq)]
		// 	public class Ceq: Op {
		// 		private readonly string NextInstructionLabel;
		// 		private readonly string CurInstructionLabel;
		// 		public Ceq(ILReader aReader, MethodInformation aMethodInfo)
		// 			: base(aReader, aMethodInfo) {
		// 			NextInstructionLabel = GetInstructionLabel(aReader.NextPosition);
		// 			CurInstructionLabel = GetInstructionLabel(aReader);
		// 		}
		// 		private void Assemble4Byte() {
		// 			Assembler.StackContents.Push(new StackContent(4, typeof(bool)));
		// 			string BaseLabel = CurInstructionLabel + "__";
		// 			string LabelTrue = BaseLabel + "True";
		// 			string LabelFalse = BaseLabel + "False";
		//             new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
		//             new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect = true };
		//             new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.Equal, DestinationLabel = LabelTrue };
		//             new CPUx86.Jump { DestinationLabel = LabelFalse };
		// 			new CPU.Label(LabelTrue);
		// 			new CPUx86.Add{DestinationReg = CPUx86.Registers.ESP, SourceValue=4};
		//             new CPUx86.Push { DestinationValue = 1 };
		//             new CPUx86.Jump { DestinationLabel = NextInstructionLabel };
		// 			new CPU.Label(LabelFalse);
		//             new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 4 };
		// 			new CPUx86.Push{DestinationValue=0};
		//             new CPUx86.Jump { DestinationLabel = NextInstructionLabel };
		// 		}
		// 
		// 		private void Assemble8Byte() {
		// 			Assembler.StackContents.Push(new StackContent(4, typeof(bool)));
		// 			string BaseLabel = CurInstructionLabel + "__";
		// 			string LabelTrue = BaseLabel + "True";
		// 			string LabelFalse = BaseLabel + "False";
		// 
		//             new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
		//             new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect = true, SourceDisplacement = 4 };
		// 
		//             new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
		//             new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotEqual, DestinationLabel = LabelFalse };
		// 
		//             new CPUx86.Xor { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect = true, SourceDisplacement = 4 };
		//             new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotZero, DestinationLabel = LabelFalse };
		// 
		// 			//they are equal, eax == 0
		//             new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 8 };
		//             new CPUx86.Add { DestinationReg = CPUx86.Registers.EAX, SourceValue = 1 };
		//             new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
		//             new CPUx86.Jump { DestinationLabel = NextInstructionLabel };
		// 
		// 			new CPU.Label(LabelFalse);
		// 			//eax = 0
		//             new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 8 };
		//             new CPUx86.Xor { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.EAX };
		//             new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
		//             new CPUx86.Jump { DestinationLabel = NextInstructionLabel };
		// 		}
		// 
		// 		public override void DoAssemble() {
		// 			int xSize = Math.Max(Assembler.StackContents.Pop().Size, Assembler.StackContents.Pop().Size);
		// 			if (xSize > 8) {
		// 				throw new Exception("StackSizes>8 not supported");
		// 			}
		// 			if (xSize <= 4) {
		// 				Assemble4Byte();
		// 				return;
		// 			}
		// 			if (xSize > 4) {
		// 				Assemble8Byte();
		// 				return;
		// 			}
		// 			throw new Exception("Case not handled!");
		// 		}
		// 	}
		// }
		#endregion Old code
	}
}