SYMTYPE          Return byte describing expression                   Operator

  SYMTYPE expression                    ; Ideal mode
  .TYPE expression                      ; MASM mode

    Returns a constant describing expression.

    Bit   Meaning
    0     Expression is a program relative memory pointer
    1     Expression is a data relative memory pointer
    2     Expression is a constant value
    3     Expression uses direct addressing mode
    4     Expression contains a register
    5     Symbol is defined
    7     Expression contains an externally defined symbol

    The expression uses register indirection (e.g. [BX]) if bits 2 and 3
    are both zero.

    If TASM can't evaluate the expression, SYMTYPE returns appropriate
    errors; .TYPE, however, will return a value in these situations
    (usually zero).