From The Free On-line Dictionary of Computing (19 January 2023): XPOP <language> An extensible macro assembly language with user-redefinable grammar, for use with FAP. ["XPOP: A Meta-language Without Metaphysics", M.I. Halpern, Proc FJCC 25:57-68, AFIPS (Fall 1964)]. (1995-04-28)
XPOP
<language> An extensible macro assembly language with user-redefinable grammar, for use with FAP.
["XPOP: A Meta-language Without Metaphysics", M.I. Halpern, Proc FJCC 25:57-68, AFIPS (Fall 1964)].
(1995-04-28)