ryujinx/Ryujinx.HLE/HOS/Kernel/KProcess.cs

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using ChocolArm64;
using ChocolArm64.Events;
using ChocolArm64.Memory;
using Ryujinx.Common;
using Ryujinx.Common.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
namespace Ryujinx.HLE.HOS.Kernel
{
class KProcess : KSynchronizationObject
{
public const int KernelVersionMajor = 10;
public const int KernelVersionMinor = 4;
public const int KernelVersionRevision = 0;
public const int KernelVersionPacked =
(KernelVersionMajor << 19) |
(KernelVersionMinor << 15) |
(KernelVersionRevision << 0);
public KMemoryManager MemoryManager { get; private set; }
private SortedDictionary<ulong, KTlsPageInfo> FullTlsPages;
private SortedDictionary<ulong, KTlsPageInfo> FreeTlsPages;
public int DefaultCpuCore { get; private set; }
public bool Debug { get; private set; }
public KResourceLimit ResourceLimit { get; private set; }
public ulong PersonalMmHeapPagesCount { get; private set; }
private ProcessState State;
private object ProcessLock;
private object ThreadingLock;
public KAddressArbiter AddressArbiter { get; private set; }
public long[] RandomEntropy { get; private set; }
private bool Signaled;
private bool UseSystemMemBlocks;
public string Name { get; private set; }
private int ThreadCount;
public int MmuFlags { get; private set; }
private MemoryRegion MemRegion;
public KProcessCapabilities Capabilities { get; private set; }
public long TitleId { get; private set; }
public long Pid { get; private set; }
private long CreationTimestamp;
private ulong Entrypoint;
private ulong ImageSize;
private ulong MainThreadStackSize;
private ulong MemoryUsageCapacity;
private int Category;
public KHandleTable HandleTable { get; private set; }
public ulong UserExceptionContextAddress { get; private set; }
private LinkedList<KThread> Threads;
public bool IsPaused { get; private set; }
public Translator Translator { get; private set; }
public MemoryManager CpuMemory { get; private set; }
private SvcHandler SvcHandler;
public HleProcessDebugger Debugger { get; private set; }
public KProcess(Horizon System) : base(System)
{
ProcessLock = new object();
ThreadingLock = new object();
CpuMemory = new MemoryManager(System.Device.Memory.RamPointer);
CpuMemory.InvalidAccess += InvalidAccessHandler;
AddressArbiter = new KAddressArbiter(System);
MemoryManager = new KMemoryManager(System, CpuMemory);
FullTlsPages = new SortedDictionary<ulong, KTlsPageInfo>();
FreeTlsPages = new SortedDictionary<ulong, KTlsPageInfo>();
Capabilities = new KProcessCapabilities();
RandomEntropy = new long[KScheduler.CpuCoresCount];
Threads = new LinkedList<KThread>();
Translator = new Translator();
Translator.CpuTrace += CpuTraceHandler;
SvcHandler = new SvcHandler(System.Device, this);
Debugger = new HleProcessDebugger(this);
}
public KernelResult InitializeKip(
ProcessCreationInfo CreationInfo,
int[] Caps,
KPageList PageList,
KResourceLimit ResourceLimit,
MemoryRegion MemRegion)
{
this.ResourceLimit = ResourceLimit;
this.MemRegion = MemRegion;
AddressSpaceType AddrSpaceType = (AddressSpaceType)((CreationInfo.MmuFlags >> 1) & 7);
bool AslrEnabled = ((CreationInfo.MmuFlags >> 5) & 1) != 0;
ulong CodeAddress = CreationInfo.CodeAddress;
ulong CodeSize = (ulong)CreationInfo.CodePagesCount * KMemoryManager.PageSize;
KMemoryBlockAllocator MemoryBlockAllocator = (MmuFlags & 0x40) != 0
? System.LargeMemoryBlockAllocator
: System.SmallMemoryBlockAllocator;
KernelResult Result = MemoryManager.InitializeForProcess(
AddrSpaceType,
AslrEnabled,
!AslrEnabled,
MemRegion,
CodeAddress,
CodeSize,
MemoryBlockAllocator);
if (Result != KernelResult.Success)
{
return Result;
}
if (!ValidateCodeAddressAndSize(CodeAddress, CodeSize))
{
return KernelResult.InvalidMemRange;
}
Result = MemoryManager.MapPages(
CodeAddress,
PageList,
MemoryState.CodeStatic,
MemoryPermission.None);
if (Result != KernelResult.Success)
{
return Result;
}
Result = Capabilities.InitializeForKernel(Caps, MemoryManager);
if (Result != KernelResult.Success)
{
return Result;
}
Pid = System.GetKipId();
if (Pid == 0 || (ulong)Pid >= Horizon.InitialProcessId)
{
throw new InvalidOperationException($"Invalid KIP Id {Pid}.");
}
Result = ParseProcessInfo(CreationInfo);
return Result;
}
public KernelResult Initialize(
ProcessCreationInfo CreationInfo,
int[] Caps,
KResourceLimit ResourceLimit,
MemoryRegion MemRegion)
{
this.ResourceLimit = ResourceLimit;
this.MemRegion = MemRegion;
ulong PersonalMmHeapSize = GetPersonalMmHeapSize((ulong)CreationInfo.PersonalMmHeapPagesCount, MemRegion);
ulong CodePagesCount = (ulong)CreationInfo.CodePagesCount;
ulong NeededSizeForProcess = PersonalMmHeapSize + CodePagesCount * KMemoryManager.PageSize;
if (NeededSizeForProcess != 0 && ResourceLimit != null)
{
if (!ResourceLimit.Reserve(LimitableResource.Memory, NeededSizeForProcess))
{
return KernelResult.ResLimitExceeded;
}
}
void CleanUpForError()
{
if (NeededSizeForProcess != 0 && ResourceLimit != null)
{
ResourceLimit.Release(LimitableResource.Memory, NeededSizeForProcess);
}
}
PersonalMmHeapPagesCount = (ulong)CreationInfo.PersonalMmHeapPagesCount;
KMemoryBlockAllocator MemoryBlockAllocator;
if (PersonalMmHeapPagesCount != 0)
{
MemoryBlockAllocator = new KMemoryBlockAllocator(PersonalMmHeapPagesCount * KMemoryManager.PageSize);
}
else
{
MemoryBlockAllocator = (MmuFlags & 0x40) != 0
? System.LargeMemoryBlockAllocator
: System.SmallMemoryBlockAllocator;
}
AddressSpaceType AddrSpaceType = (AddressSpaceType)((CreationInfo.MmuFlags >> 1) & 7);
bool AslrEnabled = ((CreationInfo.MmuFlags >> 5) & 1) != 0;
ulong CodeAddress = CreationInfo.CodeAddress;
ulong CodeSize = CodePagesCount * KMemoryManager.PageSize;
KernelResult Result = MemoryManager.InitializeForProcess(
AddrSpaceType,
AslrEnabled,
!AslrEnabled,
MemRegion,
CodeAddress,
CodeSize,
MemoryBlockAllocator);
if (Result != KernelResult.Success)
{
CleanUpForError();
return Result;
}
if (!ValidateCodeAddressAndSize(CodeAddress, CodeSize))
{
CleanUpForError();
return KernelResult.InvalidMemRange;
}
Result = MemoryManager.MapNewProcessCode(
CodeAddress,
CodePagesCount,
MemoryState.CodeStatic,
MemoryPermission.None);
if (Result != KernelResult.Success)
{
CleanUpForError();
return Result;
}
Result = Capabilities.InitializeForUser(Caps, MemoryManager);
if (Result != KernelResult.Success)
{
CleanUpForError();
return Result;
}
Pid = System.GetProcessId();
if (Pid == -1 || (ulong)Pid < Horizon.InitialProcessId)
{
throw new InvalidOperationException($"Invalid Process Id {Pid}.");
}
Result = ParseProcessInfo(CreationInfo);
if (Result != KernelResult.Success)
{
CleanUpForError();
}
return Result;
}
private bool ValidateCodeAddressAndSize(ulong Address, ulong Size)
{
ulong CodeRegionStart;
ulong CodeRegionSize;
switch (MemoryManager.AddrSpaceWidth)
{
case 32:
CodeRegionStart = 0x200000;
CodeRegionSize = 0x3fe00000;
break;
case 36:
CodeRegionStart = 0x8000000;
CodeRegionSize = 0x78000000;
break;
case 39:
CodeRegionStart = 0x8000000;
CodeRegionSize = 0x7ff8000000;
break;
default: throw new InvalidOperationException("Invalid address space width on memory manager.");
}
ulong EndAddr = Address + Size;
ulong CodeRegionEnd = CodeRegionStart + CodeRegionSize;
if (EndAddr <= Address ||
EndAddr - 1 > CodeRegionEnd - 1)
{
return false;
}
if (MemoryManager.InsideHeapRegion (Address, Size) ||
MemoryManager.InsideAliasRegion(Address, Size))
{
return false;
}
return true;
}
private KernelResult ParseProcessInfo(ProcessCreationInfo CreationInfo)
{
//Ensure that the current kernel version is equal or above to the minimum required.
uint RequiredKernelVersionMajor = (uint)Capabilities.KernelReleaseVersion >> 19;
uint RequiredKernelVersionMinor = ((uint)Capabilities.KernelReleaseVersion >> 15) & 0xf;
if (System.EnableVersionChecks)
{
if (RequiredKernelVersionMajor > KernelVersionMajor)
{
return KernelResult.InvalidCombination;
}
if (RequiredKernelVersionMajor != KernelVersionMajor && RequiredKernelVersionMajor < 3)
{
return KernelResult.InvalidCombination;
}
if (RequiredKernelVersionMinor > KernelVersionMinor)
{
return KernelResult.InvalidCombination;
}
}
KernelResult Result = AllocateThreadLocalStorage(out ulong UserExceptionContextAddress);
if (Result != KernelResult.Success)
{
return Result;
}
this.UserExceptionContextAddress = UserExceptionContextAddress;
MemoryHelper.FillWithZeros(CpuMemory, (long)UserExceptionContextAddress, KTlsPageInfo.TlsEntrySize);
Name = CreationInfo.Name;
State = ProcessState.Created;
CreationTimestamp = PerformanceCounter.ElapsedMilliseconds;
MmuFlags = CreationInfo.MmuFlags;
Category = CreationInfo.Category;
TitleId = CreationInfo.TitleId;
Entrypoint = CreationInfo.CodeAddress;
ImageSize = (ulong)CreationInfo.CodePagesCount * KMemoryManager.PageSize;
UseSystemMemBlocks = ((MmuFlags >> 6) & 1) != 0;
switch ((AddressSpaceType)((MmuFlags >> 1) & 7))
{
case AddressSpaceType.Addr32Bits:
case AddressSpaceType.Addr36Bits:
case AddressSpaceType.Addr39Bits:
MemoryUsageCapacity = MemoryManager.HeapRegionEnd -
MemoryManager.HeapRegionStart;
break;
case AddressSpaceType.Addr32BitsNoMap:
MemoryUsageCapacity = MemoryManager.HeapRegionEnd -
MemoryManager.HeapRegionStart +
MemoryManager.AliasRegionEnd -
MemoryManager.AliasRegionStart;
break;
default: throw new InvalidOperationException($"Invalid MMU flags value 0x{MmuFlags:x2}.");
}
GenerateRandomEntropy();
return KernelResult.Success;
}
public KernelResult AllocateThreadLocalStorage(out ulong Address)
{
System.CriticalSection.Enter();
KernelResult Result;
if (FreeTlsPages.Count > 0)
{
//If we have free TLS pages available, just use the first one.
KTlsPageInfo PageInfo = FreeTlsPages.Values.First();
if (!PageInfo.TryGetFreePage(out Address))
{
throw new InvalidOperationException("Unexpected failure getting free TLS page!");
}
if (PageInfo.IsFull())
{
FreeTlsPages.Remove(PageInfo.PageAddr);
FullTlsPages.Add(PageInfo.PageAddr, PageInfo);
}
Result = KernelResult.Success;
}
else
{
//Otherwise, we need to create a new one.
Result = AllocateTlsPage(out KTlsPageInfo PageInfo);
if (Result == KernelResult.Success)
{
if (!PageInfo.TryGetFreePage(out Address))
{
throw new InvalidOperationException("Unexpected failure getting free TLS page!");
}
FreeTlsPages.Add(PageInfo.PageAddr, PageInfo);
}
else
{
Address = 0;
}
}
System.CriticalSection.Leave();
return Result;
}
private KernelResult AllocateTlsPage(out KTlsPageInfo PageInfo)
{
PageInfo = default(KTlsPageInfo);
if (!System.UserSlabHeapPages.TryGetItem(out ulong TlsPagePa))
{
return KernelResult.OutOfMemory;
}
ulong RegionStart = MemoryManager.TlsIoRegionStart;
ulong RegionSize = MemoryManager.TlsIoRegionEnd - RegionStart;
ulong RegionPagesCount = RegionSize / KMemoryManager.PageSize;
KernelResult Result = MemoryManager.AllocateOrMapPa(
1,
KMemoryManager.PageSize,
TlsPagePa,
true,
RegionStart,
RegionPagesCount,
MemoryState.ThreadLocal,
MemoryPermission.ReadAndWrite,
out ulong TlsPageVa);
if (Result != KernelResult.Success)
{
System.UserSlabHeapPages.Free(TlsPagePa);
}
else
{
PageInfo = new KTlsPageInfo(TlsPageVa);
MemoryHelper.FillWithZeros(CpuMemory, (long)TlsPageVa, KMemoryManager.PageSize);
}
return Result;
}
public KernelResult FreeThreadLocalStorage(ulong TlsSlotAddr)
{
ulong TlsPageAddr = BitUtils.AlignDown(TlsSlotAddr, KMemoryManager.PageSize);
System.CriticalSection.Enter();
KernelResult Result = KernelResult.Success;
KTlsPageInfo PageInfo = null;
if (FullTlsPages.TryGetValue(TlsPageAddr, out PageInfo))
{
//TLS page was full, free slot and move to free pages tree.
FullTlsPages.Remove(TlsPageAddr);
FreeTlsPages.Add(TlsPageAddr, PageInfo);
}
else if (!FreeTlsPages.TryGetValue(TlsPageAddr, out PageInfo))
{
Result = KernelResult.InvalidAddress;
}
if (PageInfo != null)
{
PageInfo.FreeTlsSlot(TlsSlotAddr);
if (PageInfo.IsEmpty())
{
//TLS page is now empty, we should ensure it is removed
//from all trees, and free the memory it was using.
FreeTlsPages.Remove(TlsPageAddr);
System.CriticalSection.Leave();
FreeTlsPage(PageInfo);
return KernelResult.Success;
}
}
System.CriticalSection.Leave();
return Result;
}
private KernelResult FreeTlsPage(KTlsPageInfo PageInfo)
{
KernelResult Result = MemoryManager.ConvertVaToPa(PageInfo.PageAddr, out ulong TlsPagePa);
if (Result != KernelResult.Success)
{
throw new InvalidOperationException("Unexpected failure translating virtual address to physical.");
}
Result = MemoryManager.UnmapForKernel(PageInfo.PageAddr, 1, MemoryState.ThreadLocal);
if (Result == KernelResult.Success)
{
System.UserSlabHeapPages.Free(TlsPagePa);
}
return Result;
}
private void GenerateRandomEntropy()
{
//TODO.
}
public KernelResult Start(int MainThreadPriority, ulong StackSize)
{
lock (ProcessLock)
{
if (State > ProcessState.CreatedAttached)
{
return KernelResult.InvalidState;
}
if (ResourceLimit != null && !ResourceLimit.Reserve(LimitableResource.Thread, 1))
{
return KernelResult.ResLimitExceeded;
}
KResourceLimit ThreadResourceLimit = ResourceLimit;
KResourceLimit MemoryResourceLimit = null;
if (MainThreadStackSize != 0)
{
throw new InvalidOperationException("Trying to start a process with a invalid state!");
}
ulong StackSizeRounded = BitUtils.AlignUp(StackSize, KMemoryManager.PageSize);
ulong NeededSize = StackSizeRounded + ImageSize;
//Check if the needed size for the code and the stack will fit on the
//memory usage capacity of this Process. Also check for possible overflow
//on the above addition.
if (NeededSize > MemoryUsageCapacity ||
NeededSize < StackSizeRounded)
{
ThreadResourceLimit?.Release(LimitableResource.Thread, 1);
return KernelResult.OutOfMemory;
}
if (StackSizeRounded != 0 && ResourceLimit != null)
{
MemoryResourceLimit = ResourceLimit;
if (!MemoryResourceLimit.Reserve(LimitableResource.Memory, StackSizeRounded))
{
ThreadResourceLimit?.Release(LimitableResource.Thread, 1);
return KernelResult.ResLimitExceeded;
}
}
KernelResult Result;
KThread MainThread = null;
ulong StackTop = 0;
void CleanUpForError()
{
MainThread?.Terminate();
HandleTable.Destroy();
if (MainThreadStackSize != 0)
{
ulong StackBottom = StackTop - MainThreadStackSize;
ulong StackPagesCount = MainThreadStackSize / KMemoryManager.PageSize;
MemoryManager.UnmapForKernel(StackBottom, StackPagesCount, MemoryState.Stack);
}
MemoryResourceLimit?.Release(LimitableResource.Memory, StackSizeRounded);
ThreadResourceLimit?.Release(LimitableResource.Thread, 1);
}
if (StackSizeRounded != 0)
{
ulong StackPagesCount = StackSizeRounded / KMemoryManager.PageSize;
ulong RegionStart = MemoryManager.StackRegionStart;
ulong RegionSize = MemoryManager.StackRegionEnd - RegionStart;
ulong RegionPagesCount = RegionSize / KMemoryManager.PageSize;
Result = MemoryManager.AllocateOrMapPa(
StackPagesCount,
KMemoryManager.PageSize,
0,
false,
RegionStart,
RegionPagesCount,
MemoryState.Stack,
MemoryPermission.ReadAndWrite,
out ulong StackBottom);
if (Result != KernelResult.Success)
{
CleanUpForError();
return Result;
}
MainThreadStackSize += StackSizeRounded;
StackTop = StackBottom + StackSizeRounded;
}
ulong HeapCapacity = MemoryUsageCapacity - MainThreadStackSize - ImageSize;
Result = MemoryManager.SetHeapCapacity(HeapCapacity);
if (Result != KernelResult.Success)
{
CleanUpForError();
return Result;
}
HandleTable = new KHandleTable(System);
Result = HandleTable.Initialize(Capabilities.HandleTableSize);
if (Result != KernelResult.Success)
{
CleanUpForError();
return Result;
}
MainThread = new KThread(System);
Result = MainThread.Initialize(
Entrypoint,
0,
StackTop,
MainThreadPriority,
DefaultCpuCore,
this);
if (Result != KernelResult.Success)
{
CleanUpForError();
return Result;
}
Result = HandleTable.GenerateHandle(MainThread, out int MainThreadHandle);
if (Result != KernelResult.Success)
{
CleanUpForError();
return Result;
}
MainThread.SetEntryArguments(0, MainThreadHandle);
ProcessState OldState = State;
ProcessState NewState = State != ProcessState.Created
? ProcessState.Attached
: ProcessState.Started;
SetState(NewState);
//TODO: We can't call KThread.Start from a non-guest thread.
//We will need to make some changes to allow the creation of
//dummy threads that will be used to initialize the current
//thread on KCoreContext so that GetCurrentThread doesn't fail.
/* Result = MainThread.Start();
if (Result != KernelResult.Success)
{
SetState(OldState);
CleanUpForError();
} */
MainThread.Reschedule(ThreadSchedState.Running);
return Result;
}
}
private void SetState(ProcessState NewState)
{
if (State != NewState)
{
State = NewState;
Signaled = true;
Signal();
}
}
public KernelResult InitializeThread(
KThread Thread,
ulong Entrypoint,
ulong ArgsPtr,
ulong StackTop,
int Priority,
int CpuCore)
{
lock (ProcessLock)
{
return Thread.Initialize(Entrypoint, ArgsPtr, StackTop, Priority, CpuCore, this);
}
}
public void SubscribeThreadEventHandlers(CpuThread Context)
{
Context.ThreadState.Interrupt += InterruptHandler;
Context.ThreadState.SvcCall += SvcHandler.SvcCall;
}
private void InterruptHandler(object sender, EventArgs e)
{
System.Scheduler.ContextSwitch();
}
public void IncrementThreadCount()
{
Interlocked.Increment(ref ThreadCount);
System.ThreadCounter.AddCount();
}
public void DecrementThreadCountAndTerminateIfZero()
{
System.ThreadCounter.Signal();
if (Interlocked.Decrement(ref ThreadCount) == 0)
{
Terminate();
}
}
public ulong GetMemoryCapacity()
{
ulong TotalCapacity = (ulong)ResourceLimit.GetRemainingValue(LimitableResource.Memory);
TotalCapacity += MemoryManager.GetTotalHeapSize();
TotalCapacity += GetPersonalMmHeapSize();
TotalCapacity += ImageSize + MainThreadStackSize;
if (TotalCapacity <= MemoryUsageCapacity)
{
return TotalCapacity;
}
return MemoryUsageCapacity;
}
public ulong GetMemoryUsage()
{
return ImageSize + MainThreadStackSize + MemoryManager.GetTotalHeapSize() + GetPersonalMmHeapSize();
}
public ulong GetMemoryCapacityWithoutPersonalMmHeap()
{
return GetMemoryCapacity() - GetPersonalMmHeapSize();
}
public ulong GetMemoryUsageWithoutPersonalMmHeap()
{
return GetMemoryUsage() - GetPersonalMmHeapSize();
}
private ulong GetPersonalMmHeapSize()
{
return GetPersonalMmHeapSize(PersonalMmHeapPagesCount, MemRegion);
}
private static ulong GetPersonalMmHeapSize(ulong PersonalMmHeapPagesCount, MemoryRegion MemRegion)
{
if (MemRegion == MemoryRegion.Applet)
{
return 0;
}
return PersonalMmHeapPagesCount * KMemoryManager.PageSize;
}
public void AddThread(KThread Thread)
{
lock (ThreadingLock)
{
Thread.ProcessListNode = Threads.AddLast(Thread);
}
}
public void RemoveThread(KThread Thread)
{
lock (ThreadingLock)
{
Threads.Remove(Thread.ProcessListNode);
}
}
public bool IsCpuCoreAllowed(int Core)
{
return (Capabilities.AllowedCpuCoresMask & (1L << Core)) != 0;
}
public bool IsPriorityAllowed(int Priority)
{
return (Capabilities.AllowedThreadPriosMask & (1L << Priority)) != 0;
}
public override bool IsSignaled()
{
return Signaled;
}
public KernelResult Terminate()
{
KernelResult Result;
bool ShallTerminate = false;
System.CriticalSection.Enter();
lock (ProcessLock)
{
if (State >= ProcessState.Started)
{
if (State == ProcessState.Started ||
State == ProcessState.Crashed ||
State == ProcessState.Attached ||
State == ProcessState.DebugSuspended)
{
SetState(ProcessState.Exiting);
ShallTerminate = true;
}
Result = KernelResult.Success;
}
else
{
Result = KernelResult.InvalidState;
}
}
System.CriticalSection.Leave();
if (ShallTerminate)
{
//UnpauseAndTerminateAllThreadsExcept(System.Scheduler.GetCurrentThread());
HandleTable.Destroy();
SignalExitForDebugEvent();
SignalExit();
}
return Result;
}
private void UnpauseAndTerminateAllThreadsExcept(KThread Thread)
{
//TODO.
}
private void SignalExitForDebugEvent()
{
//TODO: Debug events.
}
private void SignalExit()
{
if (ResourceLimit != null)
{
ResourceLimit.Release(LimitableResource.Memory, GetMemoryUsage());
}
System.CriticalSection.Enter();
SetState(ProcessState.Exited);
System.CriticalSection.Leave();
}
public KernelResult ClearIfNotExited()
{
KernelResult Result;
System.CriticalSection.Enter();
lock (ProcessLock)
{
if (State != ProcessState.Exited && Signaled)
{
Signaled = false;
Result = KernelResult.Success;
}
else
{
Result = KernelResult.InvalidState;
}
}
System.CriticalSection.Leave();
return Result;
}
public void StopAllThreads()
{
lock (ThreadingLock)
{
foreach (KThread Thread in Threads)
{
Thread.Context.StopExecution();
System.Scheduler.CoreManager.Set(Thread.Context.Work);
}
}
}
private void InvalidAccessHandler(object sender, InvalidAccessEventArgs e)
{
PrintCurrentThreadStackTrace();
}
public void PrintCurrentThreadStackTrace()
{
System.Scheduler.GetCurrentThread().PrintGuestStackTrace();
}
private void CpuTraceHandler(object sender, CpuTraceEventArgs e)
{
Logger.PrintInfo(LogClass.Cpu, $"Executing at 0x{e.Position:X16}.");
}
}
}