4 bit programmable cpu with i/o

Build image: 
In-game name (NO VISITORS! Must be LEARNER rank or higher!): 
Koyarno
Builder name(s) and current ranks: 
Koyarno: learner+
Creation location: 
-1557, 95, -1562 xyz
Machine Features: 

4 bit cpu featuring:

3-tick dual read registers
7-tick 4 bit cca alu (!A, !B, OR, FC, Cin)

16 line 12 bit IS torch rom with immidiate jumps:
- unconditional jump
- branch if equal
- branch if not equal
- branch on Carry out
uses CLA counter

IS consists of
4 bit opcode - 2 bits Register B - 2 bits Register A (writeback) / conditions - 4 bit immidiate
opcodes: input/output, add, subtract, copy, compare, OR, XOR, AND, jump, and immidiate counterparts

This cpu runs on 22 ticks (can be faster but there could be issues)
this is a custom clock with a stall/resume capability and speed dial.

How To Use: 

The cpu is loaded with a program that just doesnt want you to get lucky sevens.....

If thats too cryptic, youre supposed to try getting 7 (0111) as an output.
there are 3 levels and each new level is indicated by a longer chain of noteblocks.
just input a 4 bit value and click the resume button to get behind the secret.

Request status: 
Approved