//mmu.h #include extern bool mmu_enabled; extern uint8_t snmm_extruder; extern void extr_mov(float shift, float feed_rate); extern void change_extr(int extr); extern int get_ext_nr(); extern void display_loading(); extern void extr_adj(int extruder); extern void extr_unload(); extern void extr_adj_0(); extern void extr_adj_1(); extern void extr_adj_2(); extern void extr_adj_3(); extern void extr_adj_4(); extern void load_all(); extern void extr_change_0(); extern void extr_change_1(); extern void extr_change_2(); extern void extr_change_3(); extern void extr_unload_all(); extern void extr_unload_used(); extern void extr_unload_0(); extern void extr_unload_1(); extern void extr_unload_2(); extern void extr_unload_3(); extern void extr_unload_4();