Babbage (programming language)

Babbage is the high level assembly language for the GEC 4000 series minicomputers.[1] It was named after Charles Babbage, an English computing pioneer.

For other uses, see Babbage (disambiguation).

Babbage
Paradigmprocedural, structured, High-level assembler
First appearedaround 1971 (1971)
Stable release
308
OSCOS, GEC DOS, OS4000
Influenced by
BCPL

Example

 
PROCESS CHAPTER FACTORIAL

ENTRY LABEL ENTRYPOINT

LITERAL TO = 4                              // Assume using the default proforma

EXTERNAL ROUTINE
     OPEN,
     PUT,
     CLOSE,
     TOCHAR

VECTOR [0,19] OF BYTE ANSWER = "factorial x = xxxxxx"
 
HALF COUNT
HALF VALUE
FULL RESULT

//******************************************************************************

     ROUTINE FACT(VALUE)
     // return factorial of RA.

     VALUE => RESULT

     WHILE DECREMENT VALUE GT //0// DO
     <<
          RESULT * VALUE => RESULT
     >>
     RETURN(RESULT)
     END

//******************************************************************************

ENTRYPOINT:

     OPEN(TO, 1)

     // Print factorials for numbers 1 through 9
     1 => RA
     REPEAT
     <<
          RA => COUNT
          FACT(RA) => RA
          TOCHAR(RA, 7, ANSWER + 13)
          TOCHAR(COUNT, 2, ANSWER + 9)
          PUT(TO, 20, ANSWER)
          COUNT + 1 => RA
     >>
     WHILE RA LT 10

     CLOSE(TO)
     STOP(0)
     END

//******************************************************************************
gollark: !demote☭lyric☭establish☭heavserver!
gollark: ```FTL.md : 45.90% ( 5423 => 2489 bytes, FTL.md.zst) 5423 FTL.md 2368 FTL.md.br 2559 FTL.md.gz 2549 FTL.md.lzma 2489 FTL.md.zst```
gollark: Random text sample from osmarks.tk.
gollark: Hold on, I still have the compression tester script.
gollark: I tested some compression algorithms on small (~2kB) samples of ASCII English text, for purposes only, and it seems like brotli is the best there.

See also

References
  1. Salomon, David (February 1993). "6.1.4 BABBAGE". In Chivers, Ian D. (ed.). Assemblers and Loaders (PDF). Ellis Horwood Series In Computers And Their Applications (1 ed.). Chicester, West Sussex, UK: Ellis Horwood Limited / Simon & Schuster International Group. pp. 184–185. ISBN 0-13-052564-2. Archived (PDF) from the original on 2020-03-23. Retrieved 2008-10-01. (xiv+294+4 pages)


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