Cosmos/source/Indy.IL2CPU.IL.X86/CustomImplementations/System/Assemblers/MulticastDelegate_Invoke.cs
2008-05-19 17:07:41 +00:00

93 lines
No EOL
4.1 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Indy.IL2CPU.Plugs;
using CPUx86 = Indy.IL2CPU.Assembler.X86;
using CPU = Indy.IL2CPU.Assembler;
namespace Indy.IL2CPU.IL.X86.CustomImplementations.System.Assemblers {
public class MulticastDelegate_Invoke : AssemblerMethod, INeedsMethodInfo {
/// <summary>
/// <para>This method implements Multicast Invoke. This means that it should call all delegates
/// in the current multicast delegate. </para>
/// <para>The argument size is available in the <code>$$ArgSize$$</code> field. This value is already rounded to 4byte boundaries</para>
/// </summary>
/// <param name="aAssembler"></param>
public override void Assemble(Assembler.Assembler aAssembler) {
if (MethodInfo == null) {
throw new Exception("This AssemblerMethod needs MethodInfo!");
}
/*
* EAX contains the GetInvocationList() array at the index at which it was last used
* EDX contains the index at which the EAX is
* EBX contains the number of items in the array
* ECX contains the argument size
*/
new CPU.Label("____DEBUG_FOR_MULTICAST___");
new CPUx86.Move("eax", "[" + MethodInfo.Arguments[0].VirtualAddresses[0] + "]");
var xGetInvocationListMethod = typeof(MulticastDelegate).GetMethod("GetInvocationList");
new CPUx86.Push("eax");
new CPUx86.Call(CPU.Label.GenerateLabelName(xGetInvocationListMethod));
new CPUx86.Pop("eax");
new CPUx86.Add("eax", "8");
new CPUx86.Move("ebx", "[eax]");
new CPUx86.Add("eax", "8");
new CPUx86.Move("edi", "0");
new CPUx86.Move("ecx", "[" + MethodInfo.Arguments[0].VirtualAddresses[0] + "]");
new CPUx86.Move("ecx", "[ecx + " + (MethodInfo.Arguments[0].TypeInfo.Fields["$$ArgSize$$"].Offset + 12) + "]");
new CPU.Label(".BEGIN_OF_LOOP");
new CPUx86.Compare("edx", "ebx");
new CPUx86.JumpIfEqual(".END_OF_INVOKE_");
new CPUx86.Pushad();
new CPUx86.Move("edi", "[eax]");
new CPUx86.Move("edi", "[edi + " + (MethodInfo.Arguments[0].TypeInfo.Fields["System.Object System.Delegate._target"].Offset+12) + "]");
new CPUx86.Compare("edi", "0");
new CPUx86.JumpIfZero(".NO_THIS");
new CPUx86.Push("edi");
new CPU.Label(".NO_THIS");
new CPUx86.Sub("esp", "ecx");
new CPUx86.Move("esi",
"esp");
new CPUx86.Compare("edi", "0");
new CPUx86.JumpIfZero(".NO_THIS2");
new CPUx86.Add("esi", "4");
new CPU.Label(".NO_THIS2");
new CPUx86.Move("edi", "[eax]");
new CPUx86.Move("edi", "[edi + " + (MethodInfo.Arguments[0].TypeInfo.Fields["System.IntPtr System.Delegate._methodPtr"].Offset + 12) + "]");
new CPUx86.Push("edi");
new CPUx86.Move("edi", "esp");
new CPUx86.Add("edi", "4");
// substract twice
new CPUx86.Add("esi",
"ecx");
new CPUx86.Add("esi",
"ecx");
new CPUx86.Add("esi",
"44"); // 32 for the Pushad, 16 for the method header
new CPUx86.RepeatMovsb();
new CPUx86.Pop("edi");
new CPUx86.Call("edi");
new CPUx86.Popad();
new CPUx86.Add("edx",
"1");
new CPUx86.Add("eax", "4");
new CPUx86.Jump(".BEGIN_OF_LOOP");
new CPU.Label(".END_OF_INVOKE_");
//MethodInfo.Arguments[0].
// new CPUx86.Move("ebx", "[eax + " + (MethodInfo.Arguments[0].TypeInfo.Fields["$$ArgSize$$"].Offset + 12) + "]");
//new CPUx86.Move("eax", CPUx86.Registers.
}
public MethodInformation MethodInfo
{
get;
set;
}
}
}