function _ClassCreate(InstanceOrVMT: Pointer; Alloc: ShortInt): Pointer;
{$IF defined(PUREPASCAL)}
begin
  if Alloc >= 0 then
    InstanceOrVMT := Pointer(TClass(InstanceOrVMT).NewInstance);
  Result := TObject(InstanceOrVMT);
end;
{$ELSE !PUREPASCAL}
{$IFDEF CPUX86}
asm
        { ->    EAX = pointer to VMT      }
        { <-    EAX = pointer to instance }
        PUSH    EDX
        PUSH    ECX
        PUSH    EBX
        TEST    DL,DL
        JL      @@noAlloc
        CALL    DWORD PTR [EAX] + VMTOFFSET TObject.NewInstance
@@noAlloc:
{$IFDEF STACK_BASED_EXCEPTIONS}
        XOR     EDX,EDX
        LEA     ECX,[ESP+16]
        MOV     EBX,FS:[EDX]
        MOV     [ECX].TExcFrame.next,EBX
        MOV     [ECX].TExcFrame.hEBP,EBP
        MOV     [ECX].TExcFrame.desc,offset @desc
        MOV     [ECX].TexcFrame.ConstructedObject,EAX   { trick: remember copy to instance }
        MOV     FS:[EDX],ECX
{$ENDIF STACK_BASED_EXCEPTIONS}
        POP     EBX
        POP     ECX
        POP     EDX
        RET

{$IFDEF STACK_BASED_EXCEPTIONS}
@desc:
        JMP     _HandleAnyException

  {       destroy the object                                                      }

        MOV     EAX,[ESP+8+9*4]
        MOV     EAX,[EAX].TExcFrame.ConstructedObject
        TEST    EAX,EAX
        JE      @@skip
        MOV     ECX,[EAX]
        MOV     DL,$81
        PUSH    EAX
        CALL    DWORD PTR [ECX] + VMTOFFSET TObject.Destroy
        POP     EAX
        CALL    _ClassDestroy
@@skip:
  {       reraise the exception   }
        CALL    _RaiseAgain
{$ENDIF STACK_BASED_EXCEPTIONS}
end;
{$ENDIF CPUX86}
{$ENDIF !PUREPASCAL}