99 Bottles of Beer

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Language IBM 1130 BASIC FORTRAN-IV

(1130 Fortran was a subset of Fortran IV.)

Date:	09/09/06
Author:	Steve Ketcham
URL:	n/a
Comments:	0
Info:	http://ibm1130.org/
Score:	(3.01 in 100 votes)

// JOB
// FOR
*ONE WORD INTEGERS
*IOCS(1132 PRINTER)
*LIST ALL
C     PROGRAM TO WRITE THE LYRICS OF '99 BOTTLES OF BEER' FOR THE
C     IBM 1130.
C
C     WRITTEN BY STEVE KETCHAM 06 SEP 2006.
C
C     IBM 1130 FORTRAN WAS A SUBSET OF FORTAN-IV.  THE MOST IMPORTANT LIMITS
C     WERE THAT ONLY ARITHMETIC IF STATEMENTS WERE ALLOWED, AND VARIABLE 
C     NAMES COULD HAVE NO MORE THAN 5 CHARACTERS.
C
C     IN THE SPIRIT OF 1130 PROGRAMMERS, NO VARIABLES ARE DECLARED.  NAMES
C     STARTING WITH THE LETTERS I THROUGH N ARE INTEGER VARIABLES.
C
C     STARTING NUMBER OF BOTTLES.
C
      IBTL = 99
C
C     START A NEW PAGE OF OUTPUT
C
      WRITE(3, 10)
   10 FORMAT(1H1)
C
C     LOOP TO DISPLAY THE LYRICS.
C
      DO 100 I=1,IBTL
C
C     JBTL IS THE NUMBER OF BOTTLES BEFORE TAKING ONE DOWN.
C
      JBTL = IBTL-I+1
C
C     KBTL IS THE NUMBER OF BOTTLES AFTER TAKING ONE DOWN.
C
      KBTL = JBTL - 1
      
C     SEE IF WE HAVE TWO PLURALS, ONE PLURAL, OR WE'RE AT THE END.
C     NOTE THAT THIS IS THE RARE CASE WHERE A THREE-WAY BRANCS IS
C     ACTUALLY USEFUL.
C
      IF (KBTL-1) 130,120,110
C
C     TWO 'BOTTLES'
C
  110 WRITE(3,12) JBTL, JBTL, KBTL
   12 FORMAT(1H0, I2,1X,'BOTTLES OF BEER ON THE WALL, ',I2,1X,'BOTTLES O
     1F BEER.'/' TAKE ONE DOWN AND PASS IT AROUND, ',I2,1X,'BOTTLES OF B
     2EER ON THE WALL.')
      GO TO 100
C
C     ONE 'BOTTLES' ONE 'BOTTLE'
C
  120 WRITE(3,14) JBTL, JBTL, KBTL
   14 FORMAT(1H0, I2,1X,'BOTTLES OF BEER ON THE WALL, ',I2,1X,'BOTTLES O
     1F BEER.'/' TAKE ONE DOWN AND PASS IT AROUND, ',I2,1X,'BOTTLE OF BE
     2ER ON THE WALL.')
      GO TO 100
C
C     LAST TIME
C
  130 WRITE(3,16) JBTL, JBTL
   16 FORMAT(1H0, I2,1X,'BOTTLE OF BEER ON THE WALL, ',I2,1X,'BOTTLE OF 
     1BEER.'/' TAKE ONE DOWN AND PASS IT AROUND, NO MORE BOTTLES OF BEER
     2 ON THE WALL.')
 
  100 CONTINUE
C
C     WRITE THE LAST VERSE
C
      WRITE(3,18) IBTL
   18 FORMAT(1H0, 'NO MORE BOTTLES OF BEER ON THE WALL, NO MORE BOTTLES 
     1OF BEER.'/' GO TO THE STORE AND BUY SOME MORE, ',I2,' BOTTLES OF B
     2EER ON THE WALL.')
      CALL EXIT
      END
// XEQ       L

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