[Coco] OS9 HEX to DECIMAL conversion.

[James Jones]

PARAM, not PRAM. (Fought off the urge to make an English nanny joke.)

About what to type at the command line: that's a bit more interesting. You
can run either a packed or non-packed version of the code with

basic09 add(5,8)

(and the parameters don't have to be strings, based on the example in the
manual). OTOH, once you pack the procedure so that you can put it in your
execution directory and invoke it from the shell which will fire up runb,
I'm not sure whether you would use the same syntax or would have to type

add 5 8