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Language peer sets for EXCHLF:
United Kingdom
United Kingdom/1966
Designed 1966
1960s languages
Third generation
High Cold War
Genus 2G Autocodes
2G Autocodes
UK historic algorithmic systems
2G Autocodes/1966
UK historic algorithmic systems/1966
2G Autocodes/United Kingdom
Autocodes/United Kingdom
UK historic algorithmic systems/United Kingdom


Extension of CHLF3 for ATLAS 

alternate simple view
Country: United Kingdom
Designed 1966
Genus: 2G Autocodes
Sammet category: Multi-purpose

for EXtended CHLF

W Nixon, Institute of Computer Science in the University of London, 1966

Extremely elegant extension of CHLF3 for the University of London Computer Unit Atlas

Featured Chapter and Routine organised code, with JUMPDOWN as a calling instruction (ie JUMPDOWN(R3) called ROUTINE 3)

Now only known for being the swearword in the mathematician's fairy tale ("Exchlf!" he swore using the vilest oath he knew. His patience was gone.)

Related languages
CHLF3 EXCHLF   Extension of

  • Nixon, W.L.B. (1966) Nixon, W.L.B. "The EXCHLF Autocode Handbook" University of London Press,University of London,1966, Provisional Version Extract: Historical summary
  • Stock (1971) Stock, Karl F. "A listing of some programming languages and their users" in RZ-Informationen. Graz: Rechenzentrum Graz 1971 94 Abstract
  • Stock and Stock (1973) Stock, Marylene and Stock, Karl F. "Bibliography of Programming Languages: Books, User Manuals and Articles from PLANKALKUL to PL/I" Verlag Dokumentation, Pullach/Munchen 1973 221 Abstract
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