hi,
could you explain what does this piece of code do?
it looks like it takes program codes from address range 0x0050...0x005F and puts them into XRAM 0x2000...0x200F. As well it adds 0x30 (why?) to each of these bytes and places results at 0x2010...0x201F.
Is it exactly what you wish?

Regards,
Oleg