mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-21 21:38:52 +00:00
28 lines
1.1 KiB
C#
28 lines
1.1 KiB
C#
using System;
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using Cosmos.IL2CPU.ILOpCodes;
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using XSharp.Compiler;
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using CPUx86 = Cosmos.Assembler.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.Assembler.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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var xOpVar = (OpVar) aOpCode;
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var xAddress = GetEBPOffsetForLocal(aMethod, xOpVar.Value);
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xAddress += (GetStackCountForLocal(aMethod, aMethod.MethodBase.GetMethodBody().LocalVariables[xOpVar.Value]) - 1)*4;
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// xAddress contains full size of locals, excluding the actual local
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XS.Set(XSRegisters.OldToNewRegister(CPUx86.RegistersEnum.EAX), XSRegisters.OldToNewRegister(CPUx86.RegistersEnum.EBP));
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XS.Sub(XSRegisters.OldToNewRegister(CPUx86.RegistersEnum.EAX), xAddress);
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XS.Push(XSRegisters.OldToNewRegister(CPUx86.RegistersEnum.EAX));
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}
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}
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}
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