using System;
using Indy.IL2CPU.Assembler;
using CPU = Indy.IL2CPU.Assembler.X86;

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

		public override void Execute(uint aMethodUID, ILOpCode aOpCode)
		{
      StackContent xStackContent = OldAsmblr.StackContents.Peek();
			if (xStackContent.IsFloat)
			{
				throw new Exception("Floats not yet supported!");
			}
      int xSize = Math.Max(OldAsmblr.StackContents.Pop().Size, OldAsmblr.StackContents.Pop().Size);
			if (xSize > 8)
			{
				throw new Exception("StackSize>8 not supported");
			}
			if (xSize > 4)
			{
				new CPU.Pop { DestinationReg = CPU.Registers.EAX };
				new CPU.Pop { DestinationReg = CPU.Registers.EBX };
				new CPU.Pop { DestinationReg = CPU.Registers.EDX };
				new CPU.Pop { DestinationReg = CPU.Registers.ECX };
				new CPU.And { DestinationReg = CPU.Registers.EAX, SourceReg = CPU.Registers.EDX };
				new CPU.And { DestinationReg = CPU.Registers.EBX, SourceReg = CPU.Registers.ECX };
				new CPU.Push { DestinationReg = CPU.Registers.EBX };
				new CPU.Push { DestinationReg = CPU.Registers.EAX };
			}
			else
			{
				new CPU.Pop { DestinationReg = CPU.Registers.EAX };
				new CPU.Pop { DestinationReg = CPU.Registers.EDX };
				new CPU.And { DestinationReg = CPU.Registers.EAX, SourceReg = CPU.Registers.EDX };
				new CPU.Push { DestinationReg = CPU.Registers.EAX };
			}
      OldAsmblr.StackContents.Push(xStackContent);			
		}

		
		// using System;
		// using System.IO;
		// 
		// 
		// using CPU = Indy.IL2CPU.Assembler.X86;
		// using Indy.IL2CPU.Assembler;
		// 
		// namespace Indy.IL2CPU.IL.X86 {
		// 	[OpCode(OpCodeEnum.And)]
		// 	public class And: Op {
		// 		public And(ILReader aReader, MethodInformation aMethodInfo)
		// 			: base(aReader, aMethodInfo) {
		// 		}
		// 		public override void DoAssemble() {
		// 			
		// 		}
		// 	}
		// }
		
	}
}