global
GLOBAL varname
GLOBAL varnamelist
(GLOBAL varname1 varname2 ...)
command. Accepts as inputs one or more words, or a list of
words. A global variable is created for each of these words, with
that word as its name. The only reason this is necessary is that
you might want to use the "setter" notation SETXYZ for a variable
XYZ that does not already have a value; GLOBAL "XYZ makes that legal.
Note: If there is currently a local variable of the same name, this
command does *not* make Logo use the global value instead of the
local one.