Hi Peppe,
The maximum length of a UNPK is 8 (length 1 = 8 and length 2 = 15).
UNPK is SS-2 type instruction with 2 length fields rather than a SS-1 type instruction
with a length field with a maximum of 255.
So you can convert max 7 bytes in one time to "printable" HEX.
An example is the SYCONVHX macro in the RPF source library.
Cheers,
Rob
Rob Prins