I'm doing a review of control lines, as jelly-six circuit get closer to go wire-wrap.
An alternative is resume dual function lines as:
TABLE U1, does internal control
U1 Lines | action | description |
D0 | M0, address A8 for U4 (eeprom math) | vide table U4 |
D1 | M1, address A9 for U4 (eeprom math) | vide table U4 |
D2 | M2, address A10 for U4 (eeprom math) | vide table U4 |
D3 | CP5, clock (CP) for U5 (74hc574 latch) | push a value into U5 |
D4 | OE2, output enable for U2 (eeprom tape control) | pull a value from U2 |
D5 | CP6, clock (CP) for U6 (74hc574 latch) | push a value into U6 |
D6 | OE4, output enable for U4 (eeprom math control) | pull a value from U4 |
D7 | reserved |
TABLE U2, does tapes control
U2 Lines | action | description |
L0, L1 | 00 is none, 01 is ONE, 10 is TWO, 11 is BOB | select which tape (none, one, data, bob) |
L2 | 0 is forward (FW), 1 is backward (BK) | select the direction of step |
L3 | 0 is read (RD), 1 is write (WR) | select the action |
L4 | reserved | |
L5 | reserved | |
L6 | reserved | |
L7 | reserved |
TABLE U2 special
special status, L0, L1, L2, L3 | action | |
0000 | does nothing | used as delay |
0010 | toggle a flip-flop to exchange forward and backward does toggle tape (ONE or TWO) swap | used for extend exchange values |
0001 | toggle a flip-flop to exchange tape ONE and tape TWO does toggle direction (FW or BK) swap | used for solve loops |
0011 |
TABLE U4, Math Control,
value (M0,M1,M2) | operation | value | result |
---|---|---|---|
0 | copy | 00011011 | 00011011 |
1 | increase | 00011011 | 00011100 |
2 | decrease | 00011011 | 00011010 |
3 | clear | 00011011 | 00000000 |
4 | shift left | 00011011 | 00110110 |
5 | shift rigth | 00011011 | 00001101 |
6 | negate | 00011011 | 11100100 |
7 | mirror | 00011011 | 11011000 |
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.