hi,

best way of calculated jump is a Jump Table. If you have number of option (0 to n)

just a note: where n < 128;

you should multiply ACC with 3 and use LJMPS in the table

once again: where n < 86

there is yet another way using @A+PC at the end on this message: http://www.8052.com/forum/read.phtml?id=57434

Regards,
Oleg