write_program_memory

[Pret]

I have some questions regarding write_program_memory. Since i'm not expert in pic's asm i want to know:
- is it allowed to handle an interrupt during write_program_memory execution?
- for a complete 64b sector, how much does it take to write it? (40MHz, 8722 let's say)
- there is an inside loop for each byte to be written... or it's just passing the pointer and hw knows what to do (considering that you have an entire block to write)?
- since this function is using an internal buffer, is it possible tu write directly to it, indead of allocating my own?

Thanks.