-reserved for BASIC programs. Since there are no ROMs in this memory bank, the
-program has almost full 64K for its own. A disadvantage is that kernal
-subroutines cannot be called (at least not in a fast and effective manner), so
-the runtime has replace kernal functionality.
+reserved for BASIC programs. Since there are no ROMs in this memory bank,
+kernal subroutines are either emulated or called by bank switching, which has
+the disadvantage of being slow compared to a direct call.