after several days of (not) constant work, I present to you:

the AVROM circuit, which stands for Addressable Volatile Read Only Memory. this is precisely what it sounds like: it is a bitwise-addressable ROM circuit that loses its contents when power is removed; in other words, it is just RAM that cant be written to, only read from.

in other words, it is completely useless

(I accidentally made this circuit while trying to design RAM from scratch)