mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-20 21:08:51 +00:00
47 lines
No EOL
1.5 KiB
C#
47 lines
No EOL
1.5 KiB
C#
using System;
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using System.Linq;
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using Indy.IL2CPU.Assembler;
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using CPUx86 = Indy.IL2CPU.Assembler.X86;
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namespace Indy.IL2CPU.IL.X86 {
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[OpCode(OpCodeEnum.Stloc)]
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public class Stloc: Op {
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private bool mNeedsGC = false;
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private MethodInformation.Variable mLocal;
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private string mBaseLabel;
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protected void SetLocalIndex(int aIndex, MethodInformation aMethodInfo) {
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mLocal = aMethodInfo.Locals[aIndex];
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mNeedsGC = aMethodInfo.Locals[aIndex].IsReferenceType;
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mNeedsGC &= aMethodInfo.Locals[aIndex].VariableType.FullName != "System.String";
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}
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public Stloc(ILReader aReader, MethodInformation aMethodInfo)
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: base(aReader, aMethodInfo) {
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int xLocalIndex;
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mBaseLabel = GetInstructionLabel(aReader);
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xLocalIndex = aReader.OperandValueInt32;
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SetLocalIndex(xLocalIndex, aMethodInfo);
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//VariableDefinition xVarDef = aReader.Operand as VariableDefinition;
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//if (xVarDef != null) {
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// SetLocalIndex(xVarDef.Index, aMethodInfo);
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//}
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}
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public sealed override void DoAssemble() {
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if (mNeedsGC) {
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new CPUx86.Pushd("[" + mLocal.VirtualAddresses[0] + "]");
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Engine.QueueMethod(GCImplementationRefs.DecRefCountRef);
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new CPUx86.Call(Label.GenerateLabelName(GCImplementationRefs.DecRefCountRef));
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}
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foreach (string s in mLocal.VirtualAddresses.Reverse()) {
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new CPUx86.Pop(CPUx86.Registers.EAX);
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new CPUx86.Move("[" + s + "]", "eax");
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}
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// no need to inc again, items on the transient stack are also counted
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Assembler.StackContents.Pop();
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}
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}
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} |