Cosmos/source/Indy.IL2CPU.IL.X86/Stsfld.cs
2007-11-13 14:16:16 +00:00

53 lines
No EOL
1.6 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.Stsfld)]
public class Stsfld: Op {
private string mDataName;
private int mSize;
private bool mIsReference = false;
public Stsfld(Mono.Cecil.Cil.Instruction aInstruction, MethodInformation aMethodInfo)
: base(aInstruction, aMethodInfo) {
FieldReference xField = (FieldReference)aInstruction.Operand;
mSize = Engine.GetFieldStorageSize(xField.FieldType);
DoQueueStaticField(xField.DeclaringType.Module.Assembly.Name.FullName, xField.DeclaringType.FullName, xField.Name, out mDataName);
mIsReference = Engine.GetDefinitionFromTypeReference(xField.FieldType).IsClass;
}
public override void DoAssemble() {
Comment("; Size = " + mSize + ", IsReference = " + mIsReference);
//if (mIsReference && Assembler.InMetalMode) {
// Pushd(4, "[" mDataName);
// return;
//}
for (int i = 1; i <= (mSize / 4); i++) {
Pop("eax");
Move(Assembler, "dword [" + mDataName + " + 0x" + (mSize - (i * 4)).ToString("X") + "]", "eax");
}
switch (mSize % 4) {
case 1: {
Pop("eax");
Move(Assembler, "byte [" + mDataName + "]", "al");
break;
}
case 2: {
Pop("eax");
Move(Assembler, "word [" + mDataName + "]", "ax");
break;
}
case 0: {
break;
}
default:
throw new Exception("Remainder size " + (mSize % 4) + " not supported!");
}
Assembler.StackSizes.Pop();
}
}
}