Cosmos/source/Indy.IL2CPU.IL.X86/Ldsfld.cs

54 lines
No EOL
1.9 KiB
C#

using System;
using System.IO;
using Mono.Cecil;
using Mono.Cecil.Cil;
using CPU = Indy.IL2CPU.Assembler.X86;
namespace Indy.IL2CPU.IL.X86 {
[OpCode(Code.Ldsfld)]
public class Ldsfld: Op {
private string mDataName;
private int mSize;
private bool mIsReference = false;
public Ldsfld(Mono.Cecil.Cil.Instruction aInstruction, MethodInformation aMethodInfo)
: base(aInstruction, aMethodInfo) {
FieldReference xField = (FieldReference)aInstruction.Operand;
mSize = Engine.GetFieldStorageSize(xField.FieldType);
if(aInstruction.ToString() == "Ldsfld System.Int32 Indy.IL2CPU.IL.X86.Native.CustomImplementations.System.ConsoleImpl::mCurrentLine") {
System.Diagnostics.Debugger.Break();
}
mIsReference = Engine.GetDefinitionFromTypeReference(xField.FieldType).IsClass;
DoQueueStaticField(xField.DeclaringType.Module.Assembly.Name.FullName, xField.DeclaringType.FullName, xField.Name, out mDataName);
}
public override void DoAssemble() {
// if(mIsReference && Assembler.InMetalMode) {
// Pushd(4, mDataName);
// return;
// }
Literal("; Size = " + mSize + ", IsReference = " + mIsReference);
for (int i = 0; i < (mSize / 4); i++) {
// Pop("eax");
// Move(Assembler, "dword [" + mDataName + " + 0x" + (i * 4).ToString("X") + "]", "eax");
Assembler.Add(new CPU.Pushd("[" + mDataName + " + 0x" + (i * 4).ToString("X") + "]"));
}
switch (mSize % 4) {
case 1: {
Assembler.Add(new CPU.Push("byte [" + mDataName + " + 0x" + (mSize - 1).ToString("X") + "]"));
break;
}
case 2: {
Assembler.Add(new CPU.Push("word [" + mDataName + " + 0x" + (mSize - 2).ToString("X") + "]"));
break;
}
case 0: {
break;
}
default:
throw new Exception("Remainder size " + (mSize % 4) + " not supported!");
}
Assembler.StackSizes.Push(mSize);
}
}
}