struct TEB_ {
  PVOID Reserved1[12];
  PVOID ProcessEnvironmentBlock;
  PVOID Reserved2[399];
  BYTE  Reserved3[1952];
  PVOID TlsSlots[64];
  BYTE  Reserved4[8];
  PVOID Reserved5[26];
  PVOID ReservedForOle;
  PVOID Reserved6[4];
  PVOID TlsExpansionSlots;
};

dword TlsPointerNdx = TlsAlloc();

void SetTlsPointer(void *ptr)
{
	TlsSetValue(TlsPointerNdx, ptr);
}

force_inline
void *GetTlsPointer()
{
	TEB_ *teb = (TEB_ *)__readgsqword(0x30);
	return teb->TlsSlots[TlsPointerNdx];
}