This generates a warning under -Wextra, since in most cases a const value doesn't prevent buggy code (as copies are allowed) while preventing some optimizations (such as move operations) to take place.
- new progress and error codes - remove #error from mmu2_power.cpp as it makes no sense - remove temporary error translation code
First port of the new MMU2-printer interface into 8bit FW.
D.R.racer
Yuri D'Elia