Cosmos/source/Cosmos.IL2CPU/IL/Ldloca.cs
2017-06-10 12:35:21 -05:00

33 lines
912 B
C#

using Cosmos.Debug.Symbols;
using Cosmos.IL2CPU.Extensions;
using Cosmos.IL2CPU.ILOpCodes;
using XSharp.Common;
using static XSharp.Common.XSRegisters;
namespace Cosmos.IL2CPU.X86.IL
{
[OpCode(ILOpCode.Code.Ldloca)]
public class Ldloca : ILOp
{
public Ldloca(Assembler.Assembler aAsmblr)
: base(aAsmblr)
{
}
public override void Execute(_MethodInfo aMethod, ILOpCode aOpCode)
{
var xOpVar = (OpVar)aOpCode;
var xVar = DebugSymbolReader.GetLocalVariableInfos(aMethod.MethodBase)[xOpVar.Value];
var xEBPOffset = GetEBPOffsetForLocal(aMethod, xOpVar.Value);
xEBPOffset += (uint)(((int)GetStackCountForLocal(aMethod, xVar.Type) - 1) * 4);
XS.Comment("Local type = " + xVar);
XS.Comment("Local EBP offset = " + xEBPOffset);
XS.Set(EAX, EBP);
XS.Sub(EAX, xEBPOffset);
XS.Push(EAX);
}
}
}