mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-20 21:08:51 +00:00
78 lines
No EOL
3.3 KiB
C#
78 lines
No EOL
3.3 KiB
C#
using System;
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using CPU = Indy.IL2CPU.Assembler;
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using CPUx86 = Indy.IL2CPU.Assembler.X86;
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using System.Reflection;
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using Indy.IL2CPU.Assembler;
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namespace Indy.IL2CPU.IL.X86 {
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[OpCode(OpCodeEnum.Newarr, false)]
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public class Newarr: Op {
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private int mElementSize;
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private string mCtorName;
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public Newarr(Type aTypeRef, string aBaseLabelName)
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: base(null, null) {
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Initialize(aTypeRef, aBaseLabelName);
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}
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public Newarr(ILReader aReader, MethodInformation aMethodInfo)
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: base(aReader, aMethodInfo) {
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Type xTypeRef = aReader.OperandValueType;
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if (xTypeRef == null) {
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throw new Exception("No TypeRef found!");
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}
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Initialize(xTypeRef, GetInstructionLabel(aReader));
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}
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private void Initialize(Type aTypeRef, string aBaseLabelName) {
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Type xTypeDef = aTypeRef;
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mElementSize = Engine.GetFieldStorageSize(aTypeRef);
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Type xArrayType = Engine.GetType("mscorlib", "System.Array");
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MethodBase xCtor = xArrayType.GetConstructors(BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance)[0];
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mCtorName = CPU.Label.GenerateLabelName(xCtor);
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Engine.QueueMethod(xCtor);
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DoQueueMethod(GCImplementationRefs.AllocNewObjectRef);
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}
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public override void DoAssemble() {
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new CPU.Comment("Element Size = " + mElementSize);
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// element count is on the stack
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int xElementCountSize = Assembler.StackContents.Pop().Size;
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new CPUx86.Pop(CPUx86.Registers.ESI);
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new CPUx86.Pushd(CPUx86.Registers.ESI);
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//Assembler.StackSizes.Push(xElementCountSize);
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new CPUx86.Pushd("0x" + mElementSize.ToString("X"));
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Assembler.StackContents.Push(new StackContent(4, typeof(uint)));
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Multiply(Assembler);
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// the total items size is now on the stack
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new CPUx86.Pushd("0x" + (ObjectImpl.FieldDataOffset + 4).ToString("X"));
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Assembler.StackContents.Push(new StackContent(4, typeof(uint)));
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Add(Assembler);
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// the total array size is now on the stack.
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Engine.QueueMethod(GCImplementationRefs.AllocNewObjectRef);
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new CPUx86.Call(CPU.Label.GenerateLabelName(GCImplementationRefs.AllocNewObjectRef));
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new CPUx86.Pushd(CPUx86.Registers.EAX);
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new CPUx86.Pushd(CPUx86.Registers.EAX);
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new CPUx86.Pushd(CPUx86.Registers.EAX);
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new CPUx86.Pushd(CPUx86.Registers.EAX);
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new CPUx86.Pushd(CPUx86.Registers.EAX);
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//new CPUx86.Pushd(CPUx86.Registers.EDI);
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Engine.QueueMethod(GCImplementationRefs.IncRefCountRef);
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new CPUx86.Call(CPU.Label.GenerateLabelName(GCImplementationRefs.IncRefCountRef));
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new CPUx86.Call(CPU.Label.GenerateLabelName(GCImplementationRefs.IncRefCountRef));
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//new CPUx86.Popd(CPUx86.Registers.ESI);
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Assembler.StackContents.Push(new StackContent(4, typeof(Array)));
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new CPUx86.Pop(CPUx86.Registers.EAX);
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new CPUx86.Move("dword", CPUx86.Registers.AtEAX, "0x" + Engine.RegisterType(Engine.GetType("mscorlib", "System.Array")).ToString("X"));
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new CPUx86.Add(CPUx86.Registers.EAX, "4");
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new CPUx86.Move("dword", CPUx86.Registers.AtEAX, "0x" + InstanceTypeEnum.Array.ToString("X"));
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new CPUx86.Add(CPUx86.Registers.EAX, "4");
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new CPUx86.Move("dword", CPUx86.Registers.AtEAX, CPUx86.Registers.ESI);
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new CPUx86.Add(CPUx86.Registers.EAX, "4");
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new CPUx86.Move("dword", CPUx86.Registers.AtEAX, "0x" + mElementSize.ToString("X"));
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new CPUx86.Call(mCtorName);
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}
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}
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} |