### Description
This circuit will output a string of characters ('tiny tapeout') to the 7-segment display.
The logic to light the characters appears in the bottom half of the simulation window.
The top half of the simulation window implements a modulo-11 counter. In other words, the counter increments up to 11 then resets. This counter is used to determine which character we should output to the 7-segment display.
The truth table for the design can be found in the [Design Spreadsheet](https://docs.google.com/spreadsheets/d/1-h9pBYtuxv6su2EC8qBc6nX_JqHXks6Gx5nmHFQh_30/edit?usp=sharing)
| SW | Function |
|---------|-----------------|
| 1 | N/A |
| 2 | Reset |
| 3 | N/A |
| 4 | Clock Disable |
| 5 | A |
| 6 | B |
| 7 | C |
| 8 | D |
Design [inspired by Rakesh Peter's tt01 submission](https://github.com/r4d10n/tinytapeout-HELLo-3orLd-7seg)A
!A
B
!B
C
!C
D
!D
A'BC + AB'C'D'
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tt-block-input
tt-block-input
A'BC
A'BC + A'CD + AB'C'D'
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tt-block-output
tt-block-output
A'B'C + B'CD' + A'CD' + AB'C'D
A'B'C + B'CD' + A'CD' + AB'C'D
AB' + B'C' + A'B(C + D) + A'CD'
A'B(C+D) + B'(C'D' + CD)'
A'C + D(A^B) + B'C'D'
Check if counter == 10...if so send reset signal
ERC Warnings
flipflop9:CLK: Clock driven by combinatorial logic
flipflop8:CLK: Clock driven by combinatorial logic
flipflop7:CLK: Clock driven by combinatorial logic