ok thanks all - yeah it looks like a pretty useful tool.

i was looking at code for a C71 whose general purpose registers
start at 0x0C not 0x20 as the C74 so couldn't work out why the
CBLOCK started at 0x0C - didn't realise there were so few dedicated
registers on a 71

thanks all

nishant

p.s. actually i ran the code on the 74 (don't know what it was doing) -
i'm gonna try and work out what the assignments at 0x0C on the 74
actually did.