Finally upgraded from the archaic IC's of microcodes with combinatorial logic to ROM, still in Logisim.

In real hardware will be used 3 of the AT28C256 EEPROM in parallel. It's a huge waste of space, I know, but there aren't smaller chips, or the cost is almost the same.

PS. Now there is a LCD output, and a test program to print an 'A' char. All ready to make a classic Hello World program!