#
#Busse
#
#- BUS_A (Ad)
#- BUS_B
#- BUS_C
#
#- EDB (Externer Datenbus)
#- EAB (Externer Adressbus)
#
#Register
#
#- I (Schleifenzähler)
#
#- ADR (Adressregister)
#- DIN (Data In)
#- DO (Data out)
#
#Rechenwerke
#
#ALU -> ALU_A, ALU_B
#DIV -> DIV_A, DIV_B

|--+-------------------|
|  | NA                |
|  | X-X               |
|  | BC:               |
|  | -> Load=0: IDLE   |
|  | -> Load=1: LD_N_1 |
|  | Idle              |
|--+-------------------|

|-------------------+-----------|
| 0 -> BUS_B -> ADR | DR        |
| EDB -> DIN        | N/A - N/A |
|                   | LD_N_2    |
|                   | LD_N_1    |
|-------------------+-----------|

|-----------------------+--------------|
| DIN -> BUS_A -> ALU_A | NA           |
| 0   -> BUS_B -> ALU_B | SUB - Z: SET |
|                       | N/A - N/A    |
|                       | I_GT_ZERO    |
|                       | LD_N_2       |
|-----------------------+--------------|

|-------------------+------------------|
| DIN -> BUS_A -> I | NA               |
|                   | N/A - N/A        |
|                   | BC:              |
|                   | -> Z = 0: LD_S_1 |
|                   | -> Z = 1: IDLE   |
|                   | I_GT_ZERO        |
|-------------------+------------------|

|-------------------+-----------|
| I -> BUS_A -> ADR | DR        |
| EDB -> DIN        | N/A - N/A |
|                   | LD_S_2    |
|                   | LD_S_1    |
|-------------------+-----------|

|-----------------------+--------------|
| DIN -> BUS_A -> S     | N/A          |
| DIN -> BUS_A -> ALU_A | SUB - S: SET |
| 1   -> BUS_B -> ALU_B | - Z: SET     |
|                       | S_GT_ONE     |
|                       | LD_S_2       |
|-----------------------+--------------|

|--+------------------------|
|  | N/A                    |
|  | N/A                    |
|  | BC:                    |
|  | -> S=0 and Z=0: X_1    |
|  | -> S=1 or Z=1: STORE_X |
|  | S_GT_ONE               |
|--+------------------------|

|-------------------------------+-------|
| S_{shift 1} -> BUS_A -> DIV_A | N/A   |
| S_{shift 1} -> BUS_A -> X     | N/A   |
| S_{shift 1} -> BUS_A -> OLD_X | DIV_2 |
| S -> BUS_B -> DIV_B           | X_1   |
|-------------------------------+-------|

|---------------------+-------|
| X -> BUS_A -> DIV_A | N/A   |
| S -> BUS_B -> DIV_B | N/A   |
|                     | DIV_2 |
|                     | DIV_1 |
|---------------------+-------|

|--+-------|
|  | N/A   |
|  | N/A   |
|  | DIV_3 |
|  | DIV_2 |
|--+-------|

|--+-------|
|  | N/A   |
|  | N/A   |
|  | DIV_4 |
|  | DIV_3 |
|--+-------|

|---------------------------------+---------------|
| X -> BUS_A -> ALU_A             | N/A           |
| DIV_{shift 1} -> BUS_B -> ALU_B | ADD - N/A     |
|                                 | OLD_X_LTE_X_1 |
|                                 | DIV_4         |
|---------------------------------+---------------|

|-------------------------+---------------|
| ALU -> BUS_A -> X       | N/A           |
| ALU -> BUS_A -> ALU_A   | SUB - C: SET  |
| OLD_X -> BUS_B -> ALU_B | OLD_X_LTE_X_2 |
|                         | OLD_X_LTE_X_1 |
|-------------------------+---------------|

|---------------------+-----------------|
| X -> BUS_A -> OLD_X | N/A             |
|                     | N/A             |
|                     | BC:             |
|                     | -> C=1: DIV_1   |
|                     | -> C=0: STORE_X |
|                     | OLD_X_LTE_X_2   |
|---------------------+-----------------|

|----------------------------+---------|
| X (shifted) -> BUS_A -> DO | DW      |
|                            | N/A     |
|                            | DEC_I   |
|                            | STORE_X |
|----------------------------+---------|

|---------------------+--------------|
| I -> BUS_A -> ALU_A | N/A          |
| 1 -> BUS_B -> ALU_B | SUB - Z: SET |
|                     | I_GT_ZERO    |
|                     | DEC_I        |
|---------------------+--------------|