This is what the PLASMA VM does (https://github.com/dschmenk/PLASMA https://github.com/dschmenk/PLASMA). All opcodes are even numbers so that the dispatch addre

This is what the PLASMA VM does (https://github.com/dschmenk/PLASMA https://github.com/dschmenk/PLASMA). All opcodes are even numbers so that the dispatch addresses can be stored as two-byte addresses.