[comp.sys.apple2] ORCA/Desktop use of COP 5

gwyn@smoke.brl.mil (Doug Gwyn) (01/28/91)

I forget who it was to whom I sent a description of the COP usage
by ORCA for debugging, but at the time I flagged COP 5 as uncertain
from the confusing description in the ORCA/Desktop manual.  I asked
Mike Westerfield about this on AOL and he says that the COP 5
instruction is followed by the symbol table, not by nothing as I
had guessed.  The first word (2 bytes) of the symbol table is the
displacement to the end of the table; this is enough information to
allow you to skip over it, which was the application of interest.
By the way, it would be more consistent with the other COP usage
if COP 5 were followed by a POINTER to the symbol table rather than
the actual table, so if it turns out that the description I gave
still isn't right, try that possibility next.