Hi Pedja, thanks for your confirmation.
Yes, I was trying as you say placing the bootloader in the high memory, but then I faced with a "limit" of PBP that requires the library routines (assembly language for high-level commands like HSEROUT) be in memory below 64K.

Here I was asking help to Melabs http://support.melabs.com/forum/picb...modifier-issue

It can works if the code is very basilar, but not for instructions like Hserout, ArrayRead etc (and I need them).