This version has a few minor fixes, and really was tested with
a virgin EXDBT.MAC off the BL32 kit. The BE:xxxxxx message now
also goes to the selected terminal, rather than the 777560/60
terminal. Also, single step and multiple breaks work properly,
thanks to Ralph pointing me in the right direction while chasing
that one.
If it wasn't for Loadable XDT's APR 6 "blind spot", it would be
operationally indistinguishable from the resident one.