1         REM   PRINT FIRST 800 DIGITS OF PI
1         REM   ADAPTED FROM C PROGRAM B DIK WINTER OF CWI, AMSTERDAM
1         LOCN  0300
1         CAD   FLIM
1         STA   C               C=FLIM
1         CAD   A
1         SRT   10
1         DIV   FIVE            A DIV 5
1         LDB   C               FOR (B=C; B>=0; --B)
1         STA - F               F[B]=A DIV 5
1         DBB   *-1,1
1         REM
1   L1    CAD   C               START OF OUTER LOOP
1         MUL   TWO
1         STR   G               G=C*2
1         BFR   ENDL1,00,00     IF G EQL 0, BRANCH OUT OF LOOP
1         CLL   D               D=0
1         CAD   C
1         STA   B               B=C
1         LDB   B
1         REM
1   DO    CAD - F               START OF INNER LOOP
1         MUL   A               F[B]*A
1         SLT   10              SHIFT PRODUCT TO RA
1         ADD   D
1         STA   D               D+=F[B]*A
1         SRT   10              SAVE NEW D IN RR
1         DFL   G,00,1          G-=1
1         DIV   G               D DIV G
1         STR - F               F[B]=D MOD G
1         STA   D               D=D DIV G
1         DFL   G,00,1          G-=1
1         CAD   B
1         SUB   ONE
1         STA   B               B-=1
1         BFA   ENDDO,00,00     IF B EQL 0, BRANCH OUT OF INNER LOOP
1         MUL   D
1         STR   D               D*=B
1         DBB   DO,1            DECREMENT RB, REPEAT INNER LOOP IF >= 0
1         REM
1   ENDDO DFL   C,00,14         C-=14
1         CAD   D
1         SRT   10
1         DIV   A               D DIV A
1         ADD   E               RA=E+D DIV A
1         STR   E               E=D MOD A
1         REM
1         REM                   FORMAT 4 DIGITS FOR SPO OUTPUT
1         SRT   3               ISOLATE HIGH-ORDER DIGIT IN A
1         ADD   N80             CONVERT 1ST DIGIT TO ALPHA
1         SLA   1
1         SLT   1
1         ADD   N80             CONVERT 2ND DIGIT TO ALPHA
1         SLA   1
1         SLT   1
1         ADD   N80             CONVERT 3RD DIGIT TO ALPHA
1         SLA   1
1         SLT   1
1         ADD   N80             CONVERT 4TH DIGIT TO ALPHA
1         SLA   2               INSERT TRAILING SPACE
1         LSA   2               SET SIGN TO TWO FOR ALPHA WORD
1         STA   B               STORE IN WORD BUFFER
1         SPO   B,1
1         IFL   COL,04,5        CHECK FOR FULL LINE ON SPO
1         CAD   COL
1         CFA   ECOL
1         BCL   L1              IF COL < ECOL, BRANCH
1         SPO   CR,1            OUTPUT NEWLINES
1         CLL   COL             CLEAR COLUMN COUNTER
1         BUN   L1
1   ENDL1 HLT   7557
1         REM
1         REM                   SCALARS
1   A     CNST  10000
1   B     CNST  0
1   C     CNST  0
1   D     CNST  0
1   E     CNST  0
1   G     CNST  0
1   COL   CNST  0
1   ECOL  CNST  50
1   FLIM  CNST  2800
1   ZERO  CNST  0
1   ONE   CNST  1
1   TWO   CNST  2
1   FIVE  CNST  5
1   N80   CNST  80
1   CR    CNST  20202021616     NEWLINES
1         REM
1         LOCN  1000
1   F     DEFN  *
1         LOCN  *+2800
1         FINI  300