mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 14:02:19 +00:00
76 lines
2.3 KiB
C#
76 lines
2.3 KiB
C#
using System;
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using Cosmos.IL2CPU.ILOpCodes;
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using CPUx86 = Cosmos.IL2CPU.X86;
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namespace Cosmos.IL2CPU.X86.IL
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{
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[Cosmos.IL2CPU.OpCode(ILOpCode.Code.Ldloca)]
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public class Ldloca: ILOp
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{
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public Ldloca(Cosmos.IL2CPU.Assembler aAsmblr):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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var xOpVar = (OpVar)aOpCode;
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var xAddress = GetEBPOffsetForLocal(aMethod, xOpVar);
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// xAddress contains full size of locals, excluding the actual local
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xAddress = xAddress;
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new CPUx86.Move {
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DestinationReg = CPUx86.Registers.EAX,
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SourceReg = CPUx86.Registers.EBP
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};
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new CPUx86.Sub {
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DestinationReg = CPUx86.Registers.EAX,
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SourceValue = xAddress
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};
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new CPUx86.Push {
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DestinationReg = CPUx86.Registers.EBX,
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};
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Assembler.Stack.Push(4);
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}
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// using System;
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// using System.Linq;
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//
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// using CPUx86 = Cosmos.IL2CPU.X86;
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// using Cosmos.IL2CPU.X86;
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//
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// namespace Indy.IL2CPU.IL.X86 {
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// [OpCode(OpCodeEnum.Ldloca)]
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// public class Ldloca: Op {
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// private int mAddress;
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// protected void SetLocalIndex(int aIndex, MethodInformation aMethodInfo) {
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// mAddress = aMethodInfo.Locals[aIndex].VirtualAddresses.LastOrDefault();
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// }
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// public Ldloca(ILReader aReader, MethodInformation aMethodInfo)
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// : base(aReader, aMethodInfo) {
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// SetLocalIndex(aReader.OperandValueInt32, aMethodInfo);
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// // return;
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// //}
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// //VariableDefinition xVarDef = aReader.Operand as VariableDefinition;
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// //if (xVarDef != null) {
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// // mIsReferenceTypeField = xVarDef.VariableType.IsClass;
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// // SetLocalIndex(xVarDef.Index, aMethodInfo);
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// //}
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// }
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//
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// public int Address {
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// get {
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// return mAddress;
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// }
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// }
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//
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// public sealed override void DoAssemble() {
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// new CPUx86.Move { DestinationReg = CPUx86.Registers.EDX, SourceReg = CPUx86.Registers.EBP };
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// new CPUx86.Sub { DestinationReg = CPUx86.Registers.EDX, SourceValue = (uint)(Address * -1) };
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// new CPUx86.Push { DestinationReg = CPUx86.Registers.EDX };
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// Assembler.Stack.Push(new StackContent(4, true, false, false));
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// }
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// }
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// }
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}
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}
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