Click above to get retro games delivered to your door ever month!

OFFSET           Offset of Expression                           MASM Operator

  OFFSET expression

    Returns the number of bytes between the expression and the beginning
    of the segment it is defined in.

       Notes:     Expression can be a label, segment name, variable, or
                  other symbol.

                  In order to generate valid offsets when accessing
                  variables in groups or segments, use the segment-
                  override operator (':') to force OFFSET to calculate the
                  offset relative to the start of the group or segment.