Cosmos/source/Indy.IL2CPU.IL.X86/Ldelema.cs
2007-11-17 12:53:28 +00:00

37 lines
No EOL
1.1 KiB
C#

using System;
using System.IO;
using Mono.Cecil;
using Mono.Cecil.Cil;
using CPU = Indy.IL2CPU.Assembler;
using CPUx86 = Indy.IL2CPU.Assembler.X86;
namespace Indy.IL2CPU.IL.X86 {
[OpCode(Code.Ldelema, true)]
public class Ldelema: Op {
private int mElementSize;
public Ldelema(Instruction aInstruction, MethodInformation aMethodInfo)
: base(aInstruction, aMethodInfo) {
TypeReference xTypeRef = aInstruction.Operand as TypeReference;
TypeSpecification xTypeSpec = xTypeRef as TypeSpecification;
if(xTypeSpec == null) {
mElementSize = Engine.GetFieldStorageSize(xTypeRef);
} else {
mElementSize = 4;
}
}
public static void Assemble(CPU.Assembler aAssembler, int aElementSize) {
new CPUx86.Pop("eax");
new CPUx86.Move("edx", "0" + aElementSize.ToString("X") + "h");
new CPUx86.Multiply("edx");
new CPUx86.Add("eax", "0" + (ObjectImpl.FieldDataOffset + 4).ToString("X") + "h");
new CPUx86.Pop("edx");
new CPUx86.Add("edx", "eax");
new CPUx86.Pushd("edx");
}
public override void DoAssemble() {
Assemble(Assembler, mElementSize);
}
}
}