Obrázek 35.1. Registry MC6809

 15                                            0
+-----------------------+-----------------------+
|              X -- Index Register              |
+-----------------------+-----------------------+
|              Y -- Index Register              |
+-----------------------+-----------------------+
|            U -- User Stack Pointer            |
+-----------------------+-----------------------+
|          S -- Hardware Stack Pointer          |
+-----------------------+-----------------------+
|                Program Counter                |
+-----------------------+-----------------------+
|     Accumulator A     |     Accumulator B     |
+-----------------------+-----------------------+

                         7                     0
                        +-----------------------+
                        | Direct Page Register  |
                        +-----------------------+

                         7                     0
                        +-----------------------+
                        | E  F  H  I  N  Z  V  C|
                        +-----------------------+
                      CC -- Condition Code Register