,X         |   $FD   |    3    |    4*    |
  |  <A HREF="ADDR12A.HTM">Absolute,Y</A>    |   SBC $FFFF,Y         |   $F9   |    3    |    4*    |
  |  <A HREF="ADDR9A.HTM">(Indirect,X)</A>  |   SBC ($FF,X)         |   $E1   |    2    |    6     |
  |  <A HREF="ADDR7A.HTM">(Indirect),Y</A>  |   SBC ($FF),Y         |   $F1   |    2    |    5*    |
  +----------------+-----------------------+---------+---------+----------+
  * Add 1 when page boundary is crossed.
  For penalty cycles on the 65816, check the de