mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 14:02:19 +00:00
101 lines
3.7 KiB
C#
101 lines
3.7 KiB
C#
using System;
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using CPUx86 = Indy.IL2CPU.Assembler.X86;
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namespace Cosmos.IL2CPU.X86.IL
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{
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[Cosmos.IL2CPU.OpCode( ILOpCode.Code.Ldflda )]
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public class Ldflda : ILOp
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{
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public Ldflda( Cosmos.IL2CPU.Assembler aAsmblr )
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: base( aAsmblr )
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{
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}
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public override void Execute( MethodInfo aMethod, ILOpCode aOpCode )
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{
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int aExtraOffset = 0;
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var xType = aMethod.MethodBase.DeclaringType;
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var xOpCode = ( ILOpCodes.OpField )aOpCode;
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System.Reflection.FieldInfo xField = xOpCode.Value;
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bool xNeedsGC = xField.FieldType.IsClass && !xField.FieldType.IsValueType;
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uint xSize = SizeOfType( xField.FieldType );
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if( xNeedsGC )
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{
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aExtraOffset = 12;
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}
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uint xOffset = 0;
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var xFields = xField.DeclaringType.GetFields();
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foreach( System.Reflection.FieldInfo xInfo in xFields )
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{
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if( xInfo == xField )
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break;
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xOffset += SizeOfType( xInfo.FieldType );
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}
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new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
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new CPUx86.Add { DestinationReg = CPUx86.Registers.EAX, SourceValue = ( uint )( xOffset + aExtraOffset ) };
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Assembler.Stack.Pop();
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Assembler.Stack.Push( new StackContents.Item( 4, xType ) );
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#warning TODO: Implement Plugs
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//if( aDerefExternalAddress && aField.IsExternalField )
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//{
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// new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX, DestinationIsIndirect = true };
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//}
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//else
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{
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new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX };
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}
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}
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// using System;
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// using System.Collections.Generic;
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// using System.IO;
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//
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//
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// using CPUx86 = Indy.IL2CPU.Assembler.X86;
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// using System.Reflection;
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// using Indy.IL2CPU.Compiler;
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//
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// namespace Indy.IL2CPU.IL.X86 {
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// [OpCode(OpCodeEnum.Ldflda)]
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// public class Ldflda: Op {
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// private Type mType;
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// private TypeInformation mTypeInfo;
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// private TypeInformation.Field mField;
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// private string mFieldId;
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// //public static void ScanOp(ILReader aReader, MethodInformation aMethodInfo, SortedList<string, object> aMethodData)
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// //{
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// // FieldInfo xField = aReader.OperandValueField;
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// // if (xField == null)
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// // {
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// // throw new Exception("Field not found!");
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// // }
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// // Engine.RegisterType(xField.DeclaringType);
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// // Engine.RegisterType(xField.FieldType);
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// //}
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//
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// public Ldflda(ILReader aReader, MethodInformation aMethodInfo)
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// : base(aReader, aMethodInfo) {
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// FieldInfo xField = aReader.OperandValueField;
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// if (xField == null) {
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// throw new Exception("Field not found!");
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// }
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// mFieldId = xField.GetFullName();
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// mType = xField.DeclaringType;
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// }
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//
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// public override void DoAssemble() {
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// mTypeInfo = GetService<IMetaDataInfoService>().GetTypeInfo(mType);
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// mField = mTypeInfo.Fields[mFieldId];
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// Ldflda(Assembler, mTypeInfo, mField);
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// }
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// }
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// }
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}
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}
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