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Lispf42.f
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C******FLOSOR (AUX ROUTINES FOR INTERPRETER)
C***********************************************************************
C* *
C* LISP F4 (FLOATING) *
C* ------- *
C* *
C* THE SYSTEM WAS WRITTEN BY UPDATED BY *
C* DR. MATS NORDSTROM HANS ERIKSSON AND *
C* KRISTINA JOHANSSON *
C* DR. TORE RISCH *
C* READER, PRINTER, ARRAYS, AND FLONUMS *
C* WERE ADDED BY MATS CARLSSON *
C* THE STACK-VARIANT OF THE *
C* INTERPRETER WAS WRITTEN BY JAAN KOORT *
C* *
C* UPMAIL *
C* STUREGATAN 2A *
C* S-752 23 UPPSALA *
C* SWEDEN *
C* *
C* THE WORK WAS SUPPORTED BY THE SWEDISH BOARD *
C* FOR TECHNICAL DEVELOPMENT (STU) NO 76-4253. *
C* *
C***********************************************************************
C*IBM SUPPLIED MACHINE CODE* EXTERNAL BRSERV
INTEGER ROLLIN
DATA ISTART /0/
C-- SET UP INTERRUPT HANDLER
C*IBM SUPPLIED MACHINE CODE* CALL BRSET(BRSERV)
CALL BRSET
CALL INIT1
IF(ISTART.NE.0)GOTO 10
CALL INIT2
ISTART=1
CALL LISPF4(1)
CALL LSPEX
STOP
C-- IN CASE OF INTERRUPT AND RESTART THE VARIABLE ISTART
C-- TELLS IF WE HAVE DONE THE INIT, THEN WE CAN CALL THE INTERPRETER
C-- DIRECTLY
C-- ON COMPUTERS WHERE YOU SAVE CORE IMAGES (E.G. DEC20) YOU CAN
C-- START THE LISPF4 SYSTEM, READ ALL LISPCODE YOU WANT AND THEN
C-- EXIT AND SAVE THE CORE IMAGE. THIS WAY YOU DONT HAVE TO USE ROLLFILES
C--
10 OPEN (10,FILE='LISPF4.IMG',STATUS='OLD',FORM='UNFORMATTED')
IXCC = ROLLIN(10)
CLOSE(10)
CALL LISPF4(1)
CALL LSPEX
STOP
END
C
SUBROUTINE BRSERV
INCLUDE 'F4COM.FOR'
C-- INTERRUPT HANDLER
ERRTYP=26
IBREAK=.TRUE.
RETURN
END
SUBROUTINE APUSH(I)
INCLUDE 'F4COM.FOR'
JP=JP-1
IF(IP .GE. JP) GO TO 2
STACK(JP)=I
RETURN
2 STACK(IP)=16
JP=JP+1
RETURN
END
SUBROUTINE APUSH2(I,J)
INCLUDE 'F4COM.FOR'
JP=JP-2
IF (IP .GE. JP) GO TO 2
STACK(JP+1)=I
STACK(JP)=J
RETURN
2 STACK(IP)=16
JP=JP+2
RETURN
END
SUBROUTINE APOP(I)
INCLUDE 'F4COM.FOR'
IF (JP .GT. NSTACK) GO TO 2
I=STACK(JP)
JP=JP+1
RETURN
2 STACK(IP)=17
JP=IP+1
RETURN
END
SUBROUTINE APOP2(I,J)
INCLUDE 'F4COM.FOR'
IF (JP .GT. NSTACK) GO TO 2
I=STACK(JP)
J=STACK(JP+1)
JP=JP+2
RETURN
2 STACK(IP)=17
JP=IP+1
RETURN
END
SUBROUTINE APUSH3(I,J,K)
INCLUDE 'F4COM.FOR'
JP=JP-3
IF (IP .GE. JP) GO TO 2
STACK(JP+2)=I
STACK(JP+1)=J
STACK(JP)=K
RETURN
2 STACK(IP)=16
JP=JP+3
RETURN
END
SUBROUTINE APOP3(I,J,K)
INCLUDE 'F4COM.FOR'
IF (JP .GT. NSTACK) GO TO 2
I=STACK(JP)
J=STACK(JP+1)
K=STACK(JP+2)
JP=JP+3
RETURN
2 STACK(IP)=17
JP=IP+1
RETURN
END
SUBROUTINE FPUSH(I)
INCLUDE 'F4COM.FOR'
IP=IP+1
IF (IP .GE. JP) GO TO 2
1 STACK(IP)=I
RETURN
2 IP=IP-1
STACK(IP)=16
RETURN
END
SUBROUTINE FPOP(I)
INCLUDE 'F4COM.FOR'
I=STACK(IP)
IP=IP-1
RETURN
END
INTEGER FUNCTION CONS(I1,I2)
INCLUDE 'F4COM.FOR'
INTEGER GARB0
IF (NFREEP .EQ. NIL) GO TO 3
ICONS = NFREEP
CONS = ICONS
NFREEP=CDR(NFREEP)
C*SETC* CALL SETCAR(ICONS,I1)
CAR(ICONS)=I1
C*SETC* CALL SETCDR(ICONS,I2)
CDR(ICONS)=I2
RETURN
3 CONS=GARB0(I1,I2)
RETURN
END
INTEGER FUNCTION GARB0(I1,I2)
INTEGER GARB
INCLUDE 'F4COM.FOR'
C PERFORM A FREE CELL GARB
3 I1CONS=I1
I2CONS=I2
I=GARB(0)
ICONS=NFREEP
GARB0 = ICONS
NFREEP=CDR(NFREEP)
C*SETC* CALL SETCAR(ICONS,I1CONS)
CAR(ICONS)=I1CONS
C*SETC* CALL SETCDR(ICONS,I2CONS)
CDR(ICONS)=I2CONS
IF (I .GT. ISPLFT) RETURN
ISPLFT=ISPLFT/2
IBREAK=.TRUE.
ERRTYP=34
RETURN
END
INTEGER FUNCTION SUBPR(IX,IY,IS)
INCLUDE 'F4COM.FOR'
INTEGER CONS,EQUAL
INTEGER RES,S
LOGICAL NLISTP
EQUIVALENCE (RES,TEMP1),(S,TEMP2)
NLISTP(IDUMMY) = IDUMMY.LE.NATOM .OR. IDUMMY.GT.NFREET
S=IS
CALL FPUSH(1)
C-- MEMB TEST OF S IN IX
5 J=IX
K=IY
6 IF(NLISTP(J))GOTO 7
IF(NLISTP(K))K=NIL
IF(EQUAL(CAR(J),S).EQ.T)GOTO 8
J=CDR(J)
K=CDR(K)
GOTO 6
7 IF(J.EQ.NIL.OR.J.NE.S)GOTO 10
C-- (SUBPAIR '(X Y . Z) '(A B C D E) '(X Y Z))=
C-- (A B C D E)
RES=K
GOTO 20
8 RES=CAR(K)
GOTO 20
10 IF(S.GT.NATOM .AND. S.LE.NFREET) GOTO 30
16 RES=S
20 I=STACK(IP)
IF (I.GT.3) GOTO 90
25 IP=IP-1
GOTO (50, 35, 40),I
30 ICDR=CDR(S)
CALL APUSH(ICDR)
CALL FPUSH(2)
S=CAR(S)
GOTO 5
35 S=STACK(JP)
STACK(JP)=RES
CALL FPUSH(3)
GOTO 5
40 CALL APOP(S)
RES=CONS(S,RES)
GOTO 20
50 SUBPR=RES
RETURN
C PDL OVERFLOW. LEAVE OFLO ADDRESS (16) IN F-STACK
90 RETURN
END
INTEGER FUNCTION EQUAL(II,JJ)
INCLUDE 'F4COM.FOR'
INTEGER COMPPN
JPE=JP
I=II
J=JJ
10 IF (I.EQ.J) GOTO 50
IF (I.LE.NATOM) GOTO 80
IF (I.GT.NFREET) GOTO 70
IF (J.LE.NATOM .OR. J.GT.NFREET) GOTO 60
C I NOT EQ J. I AND J ARE LISTS
15 CALL APUSH2(I,J)
I=CAR(I)
J=CAR(J)
GOTO 10
20 CALL APOP2(J,I)
I=CDR(I)
J=CDR(J)
GOTO 10
50 IF (JP.LT.JPE) GOTO 20
51 EQUAL=T
RETURN
60 JP=JPE
EQUAL=NIL
RETURN
C I = NUMBER
70 IF (J.LE.NFREET) GOTO 60
IF (GTREAL(I,IN) .NE. GTREAL(J,JN)) GOTO 60
IF (IN.NE.JN) GOTO 60
GOTO 50
C I = LITERAL/STRING
80 IF (0.EQ.COMPPN(I,J)) GOTO 50
GOTO 60
END
INTEGER FUNCTION GET(J,I)
INCLUDE 'F4COM.FOR'
IF (J.GT.NFREET) GOTO 40
K = CDR(J)
8 IF (K.LE.NATOM .OR. K.GT.NFREET) GOTO 40
IF (CAR(K).EQ.I) GOTO 20
12 K=CDR(K)
K=CDR(K)
GOTO 8
20 K=CDR(K)
GET=CAR(K)
RETURN
40 GET=NIL
RETURN
END
INTEGER FUNCTION GETPN(X,MAIN,JB,IPL)
C-----
C DECODES THE LITATOM/STRING/SUBSTRING X
C MAIN <-- POINTER TO MAIN STRING, IF SUBSTRING
C JB <-- BYTE OFFSET TO PRINTNAME
C IPL <-- BYTE LENGTH OF PRINTNAME
C GETPN <-- -1 = X INVALID, 0 = LITATOM, 1 = STRING/SUBSTRING
C-----
INCLUDE 'F4COM.FOR'
INTEGER X,GETNUM
IF (X.GT.NATOM) GOTO 9010
JB = PNP(X)
IPL = PNP(X+1) -JB
MAIN = X
IF (CAR(X).EQ.STRING) GOTO 9030
IF (CAR(X).NE.SUBSTR) GOTO 9020
C TAKE CARE OF THE SUBSTR CASE
L = CDR(X)
IF (L.GT.NFREET) GOTO 9010
MAIN = CAR(L)
IF (MAIN.GT.NATOM) GOTO 9010
IF (CAR(MAIN).NE.STRING) GOTO 9010
L = CDR(L)
IF (L.GT.NFREET) GOTO 9010
IF (CAR(L).LE.NFREET .OR. CDR(L).LE.NFREET) GOTO 9010
C GET BYTE ADDR
II = CAR(L)
JB = PNP(MAIN) +GETNUM(II) -1
C GET BYTE LENGTH
II = CDR(L)
IPL = GETNUM(II)
GOTO 9030
C EXITS.
9010 GETPN = -1
RETURN
9020 GETPN = 0
RETURN
9030 GETPN = 1
RETURN
END
INTEGER FUNCTION COMPPN(X,Y)
C-----
C COMPARES THE PRINTNAMES OF ITS ARGUMENTS
C COMPPN <-- -2 IF X ILLEGAL; <-- 2 IF Y IS ILLEGAL;
C <-- -1 IF X < Y; <-- 1 IF X > Y;
C <-- 0 IF X = Y;
C-----
INCLUDE 'F4COM.FOR'
INTEGER GETPN,X,Y
COMPPN = -2
IF (0.GT.GETPN(X,MAIN,JB,IPL)) RETURN
COMPPN = 2
IF (0.GT.GETPN(Y,MAIN,JB2,IPL2)) RETURN
COMPPN = 0
MIN = IPL
IF (IPL.GT.IPL2) MIN = IPL2
IF (MIN.EQ.0) GOTO 20
C COMPARE BYTE BY BYTE
DO 10 I = 1,MIN
CALL GETCH(PNAME,ICH,JB)
CALL GETCH(PNAME,JCH,JB2)
IF (ICH.LT.JCH) GOTO 30
IF (ICH.GT.JCH) GOTO 40
JB = JB +1
10 JB2 = JB2 +1
20 IF (IPL-IPL2) 30,50,40
30 COMPPN = -1
GOTO 50
40 COMPPN = 1
50 RETURN
END
SUBROUTINE ARRUTL(IPTR,IACTN,IPART,IFIRST,ILEN)
C----
C
C + TAKES CARE OF THE SYSTEM'S ARRAY HANDLING.
C ARRAYS ARE REPRESENTED AS FOLLOWS:
C
C +--------------+
C ! !
C PNAME:...(Z * * (POINTERS) Z (INTEGERS) Z (REALS)) (NEXT ATOM)...
C ! ! ! !
C ! +-------------------------+ !
C PNP:(IPTR) (IPTR+1)
C
C CAR(IPTR) = ARRAY (BYTE POINTERS)
C CDR(IPTR) = NIL (Z = 0 OR MORE SLACK BYTES)
C
C + PARAMETERS:
C
C IPTR LISP POINTER TO ARRAY (AS ABOVE)
C
C IACTN = 1 GET ARRAY ELEMENT
C = 2 SET ARRAY ELEMENT
C = 3 SET IFIRST AND ILEN TO ARRAY PART BOUNDS
C = 4 MAKE AN ARRAY PART, INITTED TO IFIRST
C
C IPART = 1 POINTER PART IS REFERRED TO
C = 2 INTEGER PART
C = 3 REAL PART
C
C IFIRST: ARRAY PART RELATIVE INDEX (IACTN = 1,2) OR
C PNAME RELATIVE INDEX (IACTN = 3,4)
C
C ILEN: PNAME RELATIVE INDEX TO VALUE (IACTN = 1,2) OR
C NO. OF ELEMENTS IN PART (IACTN = 3,4)
C
C + NUMERIC ELEMENT VALUES ARE TRANSMITTED VIA IPNAME/PNAME
C
C-----
INCLUDE 'F4COM.FOR'
INTEGER*2 JPNAME(1)
INTEGER IPNAME(1),LWORD(3),LLEN(3)
EQUIVALENCE (JPNAME(1),IPNAME(1),PNAME(1))
EQUIVALENCE (LWORD1,LWORD(1)),(LWORD2,LWORD(2)),(LWORD3,LWORD(3))
EQUIVALENCE (LLEN1,LLEN(1)),(LLEN2,LLEN(2)),(LLEN3,LLEN(3))
MKJBP(IDUMMY,IDUMMZ) = ((JBP +IDUMMZ -2) /IDUMMZ +IDUMMY)
* *IDUMMZ +1
C
IF (IBREAK) GOTO 9000
C CHECK PARAMETER IPTR
IF (IPTR.LT.NIL .OR. IPTR.GT.NATOM) GOTO 8010
IF (CAR(IPTR).NE.ARRAY) GOTO 8010
C GET ARRAY BOUNDS
LBYTE1 = PNP(IPTR)
LBYTE1 = IABS(LBYTE1)
LWORD1 = (LBYTE1-2)/JBYTES +4
IF (IACTN.EQ.4 .AND. IPART.EQ.1) GOTO 4000
LBYTE2 = JPNAME(LWORD1-2)
LLEN1 = (LBYTE2-LBYTE1)/JBYTES -2
IF (IPART.LT.2) GOTO 20
LWORD2 = (LBYTE2-2)/IBYTES +2
LBYTE3 = JPNAME(LWORD1-1)
LLEN2 = (LBYTE3-LBYTE2)/IBYTES
IF (IPART.LT.3) GOTO 20
LWORD3 = (LBYTE3-2)/BYTES +2
LLEN3 = PNP(IPTR+1)
LLEN3 = (IABS(LLEN3) - LBYTE3)/BYTES
20 GOTO (1000,2000,3000,4000), IACTN
C
C GET ARRAY ELEMENT (CALLED BY ELT,ELTI,ELTR)
C
1000 IF (IFIRST.LE.0 .OR. IFIRST.GT.LLEN(IPART)) GOTO 8020
ILEN = LWORD(IPART)+IFIRST -1
GOTO 9000
C
C SET ARRAY ELEMENT (CALLED BY SETA,SETI,SETR)
C
2000 IF (IFIRST.LE.0 .OR. IFIRST.GT.LLEN(IPART)) GOTO 8020
IND = LWORD(IPART) +IFIRST -1
IF (IPART.EQ.1) JPNAME(IND) = JPNAME(ILEN)
IF (IPART.EQ.2) IPNAME(IND) = IPNAME(ILEN)
IF (IPART.EQ.3) PNAME(IND) = PNAME(ILEN)
GOTO 9000
C
C GET ARRAY BOUNDS (CALLED BY ARRAYSIZE AND GARB (STEPS 1,6))
C
3000 IFIRST = LWORD(IPART)
ILEN = LLEN(IPART)
GOTO 9000
C
C MAKE AN ARRAY (CALLED BY ARRAY AND GARB (STEP 4))
C REQUIRES THAT WE HAVE ENSURED THAT THERE IS ENOUGH SPACE ALREADY
C IFIRST = 0 YIELDS DEFAULT VALUES IN THE NEW ARRAY
C
4000 JFIRST = IFIRST
GOTO (4100,4200,4300), IPART
C PTR PART
4100 JBP = MKJBP(ILEN+2,JBYTES)
IF (ILEN.EQ.0 .OR. LWORD1.EQ.JFIRST) GOTO 4410
DO 4150 J = 1,ILEN
IF (JFIRST.EQ.0) GOTO 4120
JPNAME(LWORD1) = JPNAME(JFIRST)
JFIRST = JFIRST+1
GOTO 4150
4120 JPNAME(LWORD1) = NIL
4150 LWORD1 = LWORD1+1
GOTO 4410
C INT PART
4200 JBP = MKJBP(ILEN,IBYTES)
IF (ILEN.EQ.0 .OR. LWORD2.EQ.JFIRST) GOTO 4420
DO 4250 J = 1,ILEN
IF (JFIRST.EQ.0) GOTO 4220
IPNAME(LWORD2) = IPNAME(JFIRST)
JFIRST = JFIRST+1
GOTO 4250
4220 IPNAME(LWORD2) = 0
4250 LWORD2 = LWORD2+1
GOTO 4420
C REAL PART
4300 JBP = MKJBP(ILEN,BYTES)
IF (ILEN.EQ.0 .OR. LWORD3.EQ.JFIRST) GOTO 4430
DO 4350 J = 1,ILEN
IF (JFIRST.EQ.0) GOTO 4320
PNAME(LWORD3) = PNAME(JFIRST)
JFIRST = JFIRST+1
GOTO 4350
4320 PNAME(LWORD3) = 0.
4350 LWORD3 = LWORD3+1
GOTO 4430
C SET THE POINTERS
4410 LWORD1 = LWORD1-ILEN
JPNAME(LWORD1-2) = JBP
4420 JPNAME(LWORD1-1) = JBP
4430 PNP(IPTR+1) = JBP
GOTO 9000
C EXITS
C ARG NOT ARRAY
8010 IBREAK = .TRUE.
ERRTYP = 21
GOTO 9000
C ARRAY INDEX OUT OF BOUNDS
8020 IBREAK = .TRUE.
ERRTYP = 28
ARG = ARG2
9000 RETURN
END
SUBROUTINE INIT1
INCLUDE 'F4COM.FOR'
C AFTER CALLING INIT1 YOU MAY CALL ROLLIN INSTEAD OF INIT2
C THE FOLLOWING VARIABLES ARE MACHINE DEPENDENT AND ARE TO BE
C SET BY THE IMPLEMENTOR OF LISPF4
NATOM=3000
NFREET=100000
NSTACK=1500
NHTAB=4000
NPNAME=5000
HILL=1500
JBYTES = 4
IBYTES = 4
BYTES=4
LUNIN=5
LUNUT=6
LUNSYS=4
MAXLUN=99
IOBUFF=160
NBYTES = 256
CHDIV=2**24
MAXBIG= 2147483647
C =2**31-1
MAXINT=MAXBIG
IRESOL = 8
IPOWER = 50
FUZZ = 5.E-8
C THE NEAREST 10**N LOWER THAN MAXBIG
RMAX=10**(IFIX(ALOG10(FLOAT(MAXBIG)))-1)
C
C THE FOLLOWING VARIABLES BELONGS TO INIT1 BUT MAY NOT
C BE CHANGED BY VARIOUS IMPLEMENTATIONS
NIL=1
NBMESS = 40
MAXMES = 40
NCHTYP = 26
NAREA=82
C NAREA = THE LENGTH OF COMMON /B/ FROM ARG TO DREG(7)
NFREEB=NATOM+1
LUNINS=LUNIN
LUNUTS=LUNUT
BIGNUM=NFREET+NATOM
ISMALL = (MAXINT-BIGNUM-1)/2
NUMADD = MAXINT-ISMALL
DPNP=NPNAME-NATOM
DPNAME=DPNP-NFREET
BIGMAX = FLOAT(MAXBIG)
C NOW FOLLOW VARIABLE SETTINGS THAT
C ONLY HAVE TO BE DONE ONCE PER RUN.
C STACK
STACK(1)=17
C PNP
DO 10 I = 1,NATOM
10 PNP(I) = 1
GARBS=0
CGARBS=0
AGARBS=0
NGARBS = 0
RETURN
END
SUBROUTINE INIT2
INCLUDE 'F4COM.FOR'
C ALL MACHINE INDEPENDENT INITIALIZATIONS ARE DONE HERE
C INIT2 MAY BE REPLACED BY A CALL TO ROLLIN
C
INTEGER ICH(26),ISYS(7),ARGS(10),ISYS2(22)
EQUIVALENCE (SPACE,ICH(1)),(SUBR0,ISYS(1)),(ARG,ARGS(1))
EQUIVALENCE (A000,ISYS2(1))
NATOMP=0
IP=1
JP=NSTACK+1
JBP=1
NUMBP=NPNAME+1
ABUP1=0
LMARGR=1
LMARG=1
MARGR = 80
MARG = 80
LEVELL = 1000
LEVELP = 1000
MAXPAR = 3
ITABWG = 8
MIDDL=NSTACK/10
UNUSED=-1001
C
C BELOW IS CODE THAT OPENS SYSATOMS AT RUNTIME SO YOU DON'T NEED
C TO ASSIGN IT.
C
OPEN(UNIT=LUNSYS ,NAME='SYSATOMS',ERR=3,STATUS='OLD')
GOTO 4
3 WRITE(LUNUTS,5)
5 FORMAT(1X,22HCANT'T OPEN 'SYSATOMS')
STOP
C
C
C
C READ SYSTEM CHARACTERS
4 CALL RDA1(LUNSYS,ICH,1,NCHTYP,IEOF)
C
C
C
CDEBUG WRITE(LUNUTS,29)(ICH(IIII),IIII=1,26)
CDEBUG29 FORMAT(' ICH=',26A1)
C READ ()<>"'..T+-0123456789%^E#
C IF YOU GOT THE BCD-CODED VERSION, YOU MUST REPLACE THE
C CHARACTERS FOR PROCENT, LEFT-BRACKET, RIGHT-BRACKET BY
C SOMETHING ELSE
C
C CLEAR HTAB
DO 30 I=1,NHTAB
30 HTAB(I)=UNUSED
C
C CLEAR CAR AND CDR AND MAKE FREE LISTS
NFREEP=NIL
DO 180 I=NFREEB,NFREET
C*SETC* CALL SETCAR(I,NIL)
CAR(I)=NIL
C*SETC* CALL SETCDR(I,NFREEP)
CDR(I)=NFREEP
180 NFREEP=I
C INITIALIZE CHTAB
DO 200 I=1,NBYTES
200 CHTAB(I)=10
C PUT CHARACTER TYPES IN CHTAB
DO 220 I = 1,NCHTYP
220 CALL SETCHT(ICH(I),I)
DO 225 I=1,IOBUFF
BUFF(I) = SPACE
RDBUFF(I) = SPACE
PRBUFF(I) = SPACE
225 ABUFF(I)=SPACE
PRTPOS=1
RDPOS=1000
CHT=1
C
NARGS=10
NUMGEN = 0
DO 250 I=1,7
250 DREG(I)=NIL
IFLG1=NIL
IFLG2=NIL
DO 260 I=1,NARGS
260 ARGS(I)=NIL
C USE LISP READ FUNCTION TO READ LISTS OF FUNCTION NAMES
C FROM LUNSYS THUS CREATING ATOMS FOR THE SYS-FUNCTIONS
C
C THE INTERVALS SUBR0 - FSUBR ARE EQUIVALENCE TO ISYS
C
C SUBR0 = LAST FUNCTION WITH 0 ARGS
C SUBR11= LAST FUNCTION WITH 1 NUMERICAL ARG
C SUBR1 = LAST FUNCTION WITH 1 ARG (MAY NOT BE NUM ARG)
C SUBR2 = LAST FUNCTION WITH 2 ARGS
C SUBR3 = LAST FUNCTION WITH 3 ARGS
C SUBR = LAST FUNCTION WITH N ARGS
C FSUBR= LAST FSUBR
LUNIN=LUNSYS
DO 270 I=1,7
ICAR = IREAD(0)
ISYS(I)=NATOMP
CDEBUG WRITE(LUNUTS,500)NATOMP
CDEBUG500 FORMAT(' NATOMP =',I4)
CDEBUG WRITE(LUNUTS,501)(PNAME(IIII),IIII=1,20)
CDEBUG501 FORMAT(4(' PNAME ',5A5,/))
270 CONTINUE
C DEFINE SOME ATOM-INDEX SEPARATELY
DO 275 I = 1,22
275 ISYS2(I) = IREAD(0)
LUNIN=LUNINS
C SET CAR OF ATOMS
DO 280 I = NIL,NATOMP
C*SETC*280 CALL SETCAR(I, UNBOUN)
280 CAR(I)= UNBOUN
C*SETC* CALL SETCAR(NIL,NIL)
CAR(NIL)=NIL
C*SETC* CALL SETCAR(T,T)
CAR(T)=T
C INITIALIZE MESS (HAVE MESS TO READ MESSAGES FROM LUNSYS)
CALL MESS(0)
CLOSE(LUNSYS)
RETURN
END
INTEGER FUNCTION ROLLIN(LUN)
INCLUDE 'F4COM.FOR'
INTEGER CINF(15),AREA(1),ACOM(8),BCOM(26)
INTEGER JPNAME(6006)
EQUIVALENCE
* (NATOPO,CINF(9)),
* (NFREPO,CINF(10)),
* (JBPO ,CINF(11)),
* (NUMBPO,CINF(12)),
* (NFRETO,CINF(13)),
* (NUMADO,CINF(14)),
* (NPNAMO,CINF(15))
EQUIVALENCE(ARG,AREA(1)),(NAREA,ACOM(1)),(SPACE,BCOM(1))
EQUIVALENCE (JPNAME(1),PNAME(1))
INREAL = BYTES/JBYTES
CALL DMPIN(LUN,CINF,1,15)
C CHECK IF ROLLIN POSSIBLE
DO 1 I = 1,8
IF(CINF(I) .NE. ACOM(I)) GOTO 90
1 CONTINUE
C ATOM SPACE
IF(NATOPO+1 .GE. NATOM) GOTO 90
C PRINT NAMES AND FLOATING NUMBERS
IF((JBPO-2)/BYTES+2+NPNAMO-NUMBPO .GE. NPNAME) GOTO 90
C FREE STORAGE
IF(NFRETO-NFREPO .GE. NFREET-NFREEB) GOTO 90
C ROLLIN POSSIBLE, MOVE POINTERS AND READ.
IDIFF1=NFREET-NFRETO
IDIFF2=NUMADD-NUMADO
NATOMP=NATOPO
NFREEP=NFREPO+IDIFF1
JBP=JBPO
NUMBP=NUMBPO+NPNAME-NPNAMO
CALL DMPIN(LUN,IMESS,1,NBMESS/IBYTES *MAXMES)
CALL DMPIN(LUN,AREA,1,NAREA)
C STACK IS USED PRIOR TO RESET.
IP=1
JP=NSTACK+1
CALL DMPIN2(LUN,JPNAME,1,(JBP-2)/JBYTES+1)
CALL DMPIN2(LUN,JPNAME, (NUMBP-1)*INREAL+1, NPNAME*INREAL)
CALL DMPIN2(LUN,PNP,1,NATOMP+1)
C*SETC* CALL DMPIN2(LUN,CARCDR,NIL,NATOMP)
CALL DMPIN2(LUN,CAR,NIL,NATOMP)
C*SETC*C
CALL DMPIN2(LUN,CDR,NIL,NATOMP)
C*SETC* CALL DMPIN2(LUN,CARCDR,NFREEP+1,NFREET)
CALL DMPIN2(LUN,CAR,NFREEP+1,NFREET)
C*SETC*C
CALL DMPIN2(LUN,CDR,NFREEP+1,NFREET)
CALL DMPIN(LUN,BCOM,1,NCHTYP)
CALL DMPIN2(LUN,CHTAB,1,NBYTES)
C
C CHECK IF WE NEED TO MOVE POINTERS
C
IF (IDIFF1.GE.0) GOTO 22
C CALL FTYPE('MOVING 1')
CALL MOVE(IDIFF1,NFREEP-IDIFF1,BIGNUM-IDIFF1)
22 IF (IDIFF2.EQ.0) GOTO 24
C CALL FTYPE('MOVING 2')
CALL MOVE(IDIFF2,BIGNUM-IDIFF2,MAXINT)
24 IF (IDIFF1.LE.0) GOTO 30
C CALL FTYPE('MOVING 3')
CALL MOVE(IDIFF1,NFREEP-IDIFF1,BIGNUM-IDIFF1)
C
C MAKE FREE LIST
C
30 MAX=NFREEP
NFREEP=NIL
DO 35 I=NFREEB,MAX
C*SETC* CALL SETCAR(I,NIL)
CAR(I)=NIL
C*SETC* CALL SETCDR(I,NFREEP)
CDR(I)=NFREEP
35 NFREEP=I
C
C REHASH THE ATOMS
C
CALL REHASH
C
C CLEAR BUFFERS
DO 60 I=1,IOBUFF
ABUFF(I)=SPACE
BUFF(I)=SPACE
RDBUFF(I)=SPACE
PRBUFF(I)=SPACE
60 CONTINUE
PRTPOS=1
RDPOS=1000
CHT = 1
ABUP1=0
ROLLIN=LUN+NUMADD
GOTO 91
90 ROLLIN=NIL
91 CALL REW(LUN)
RETURN
END
SUBROUTINE ROLLOU(LUN)
INCLUDE 'F4COM.FOR'
INTEGER GARB,CINF(15),AREA(1),BCOM(26)
INTEGER JPNAME(6006)
EQUIVALENCE (NAREA,CINF(1)),(ARG,AREA(1)),(SPACE,BCOM(1))
EQUIVALENCE (JPNAME(1),PNAME(1))
INREAL = BYTES/JBYTES
C CALL COMPACTING GBC
I = GARB(1)
CALL DMPOUT(LUN,CINF,1,15)
CALL DMPOUT(LUN,IMESS,1,NBMESS/IBYTES *MAXMES)
CALL DMPOUT(LUN,AREA,1,NAREA)
CALL DMPOU2(LUN,JPNAME,1,(JBP-2)/JBYTES+1)
CALL DMPOU2(LUN,JPNAME, (NUMBP-1)*INREAL+1, NPNAME*INREAL)
CALL DMPOU2(LUN,PNP,1,NATOMP+1)
C*SETC* CALL DMPOU2(LUN,CARCDR,NIL,NATOMP)
CALL DMPOU2(LUN,CAR,NIL,NATOMP)
C*SETC*C
CALL DMPOU2(LUN,CDR,NIL,NATOMP)
C*SETC* CALL DMPOU2(LUN,CARCDR,NFREEP+1,NFREET)
CALL DMPOU2(LUN,CAR,NFREEP+1,NFREET)
C*SETC*C
CALL DMPOU2(LUN,CDR,NFREEP+1,NFREET)
CALL DMPOUT(LUN,BCOM,1,NCHTYP)
CALL DMPOU2(LUN,CHTAB,1,NBYTES)
CALL REW(LUN)
RETURN
END
SUBROUTINE MOVE(DIFF,MIN,MAX)
INCLUDE 'F4COM.FOR'
INTEGER DIFF,ARGS(10)
EQUIVALENCE (ARG,ARGS(1))
C
C USED BY ROLLIN TO ADD DIFF TO POINTERS POINTING
C IN (.GT.MIN , .LE.MAX)
I1=NIL
I2=NATOMP
DO 20 J=1,2
DO 10 I=I1,I2
C*SETC* IF(CAR(I).GT.MIN.AND.CAR(I).LE.MAX) CALL SETCAR(I,CAR(I)+DIFF)
IF(CAR(I).GT.MIN.AND.CAR(I).LE.MAX) CAR(I)=CAR(I +DIFF)
C*SETC* IF(CDR(I).GT.MIN.AND.CDR(I).LE.MAX) CALL SETCDR(I,CDR(I)+DIFF)
IF(CDR(I).GT.MIN.AND.CDR(I).LE.MAX) CDR(I)=CDR(I +DIFF)
10 CONTINUE
I1=NFREEP
20 I2=NFREET
DO 50 I=1,NARGS
IF(ARGS(I) .GT. MIN.AND.ARGS(I).LE.MAX) ARGS(I)=ARGS(I)+DIFF
50 CONTINUE
RETURN
END
SUBROUTINE PRIN1(S)
INCLUDE 'F4COM.FOR'
C-----
C
C THE GENERAL PRINT ROUTINE
C
C-----
INTEGER S,X,Y,XX,RETC,RETU,GLCOUN,GLNKW,GLLEV,
1 X2,GLLBEF,GET,CCOL
LOGICAL LISTP,NLISTP
LISTP(IDUMMY) = IDUMMY.GT.NATOM .AND. IDUMMY.LE.NFREET
NLISTP(IDUMMY) = IDUMMY.LE.NATOM .OR. IDUMMY.GT.NFREET
C
C--------------------------------------MAIN ENTRY
X = S
CALL APUSH2(IP,LMARG)
C STACK OVERFLOW PREVENTION
IF (STACK(IP).EQ.16) RETURN
IDIV = 3
IF (DREG(2).NE.NIL) IDIV = 5
LEVELM = (JP-IP)/IDIV -1
IF (LEVELP.LT.LEVELM) LEVELM = LEVELP
JPOLD = JP
GLLEV = 0
CCOL = 2*MARG/3
JPCOM = -10
X2 = NIL
RETU = 2
GOTO 1000
C--------------------------------------RETURN
C--TERMINAL INTERRUPT (FROM UNKWOTE)
18 CALL TERPRI
C--FROM PRINT-S
20 JP = JPOLD
CALL APOP2(LMARG,IP)
RETURN
C
C--------------------------------------ENTRY LASTDEPTH(X)
500 LDEPTH = GLLEV
RETU = 1
C--FROM UNKWOTE
510 IF (LDEPTH.EQ.LEVELM .OR. NLISTP(X)) GOTO 550
LDEPTH = LDEPTH+1
C X := LAST(X)
DO 520 I = 1,LEVELL
Y = CDR(X)
IF (Y.EQ.NIL) GOTO 530
X = Y
IF (NLISTP(Y)) GOTO 510
520 CONTINUE
GOTO 550
C X := UNKWOTE(CAR(X))
530 X = CAR(X)
GOTO 1000
C RETURN(LDEPTH)
550 IRET = LDEPTH-GLLEV
GOTO 5020
C
C--------------------------------------ENTRY UNKWOTE(X)
1000 IF(IBREAK)GOTO 18
GLCOUN = 0
IF (DREG(3).EQ.NIL) GOTO 1010
1005 IF (NLISTP(X)) GOTO 1010
Y = CDR(X)
IF (CAR(X).NE.QUOTE .OR. NLISTP(Y)) GOTO 1010
IF (CDR(Y).NE.NIL) GOTO 1010
GLCOUN = GLCOUN+1
X = CAR(Y)
GOTO 1005
1010 IF (RETU.EQ.2 .OR. RETU.EQ.4) GLNKW = GLCOUN
GOTO (510,2000,1504,5105), RETU
C
C--------------------------------------ENTRY NCHARS(X)
1500 JPSAV = JP
RETU = 3
C COUNT THE QUOTES.
GOTO 1000
C--FROM UNKWOTE
1504 IRET = IRET+GLCOUN
C GONE PAST RIGHT MARGIN ?
IF (IRET.GT.MARG) GOTO 1580
C A LITATOM ?
IF (X.GT.NATOM) GOTO 1520
IF (CAR(X).EQ.ARRAY) GOTO 1530
IRET = IRET+(PNP(X+1)-PNP(X))+1
GOTO 1590
C A NUMBER ?
1520 IF (X.GT.NFREET) GOTO 1530
C DEEP ENOUGH ?
IF (GLLEV+(JPSAV-JP)/2 .LT. LEVELM) GOTO 1550
1530 IRET = IRET+4
GOTO 1590
C GO DOWN CAR DIRECTION
1550 JP = JP-2
STACK(JP+1) = 0
1555 STACK(JP) = X
X = CAR(X)
GOTO 1000
C ... AND CDR DIRECTION
1560 X = STACK(JP)
IF (X.LT.NIL) GOTO 1585
X = CDR(X)
C SIMULATE A GRAPHIC --- ?
STACK(JP+1) = STACK(JP+1) + 1
IF (STACK(JP+1).GE.LEVELL) X = NUMADD
IF (LISTP(X)) GOTO 1555
STACK(JP) = -1
GOTO 1000
C BACKUP
1580 JP = JPSAV-2
1585 JP = JP+2
1590 IF (JPSAV-JP) 1580,1591,1560
C EXIT
1591 IF (JPCOM) 5032,5032,3001
C
C--------------------------------------ENTRY PRINT-S(X)
C
C--FROM UNKWOTE DEEP ENOUGH ?
2000 IF (GLLEV.GE.LEVELM .AND. LISTP(X)) X = -1
IF (NLISTP(X)) GOTO 2030
C PRINT-L(X,X2)
2010 IF (X2.GT.NUMADD) X2 = X2-1
IF (DREG(2).NE.NIL) CALL APUSH2(LPRBRK,LLMARG)
CALL APUSH3(LI,X2,X)
IF (JP.EQ.JPCOM) DREG(2) = NIL
GOTO 5000
C--FROM PRINT-L
2020 IF (JP.EQ.JPCOM) DREG(2) = T
CALL APOP3 (X,X2,LI)
IF (DREG(2).NE.NIL) CALL APOP2 (LLMARG,LPRBRK)
GLLBEF = T
IF (JP-IDIV.NE.JPCOM) GOTO 2040
JPCOM = -10
IF (LMARG.EQ.10) GOTO 2500
C--FROM TERPRI2
2025 LMARG = XX
GOTO 2040
C PRINAT(X)
2030 CALL PRINAT(X,GLNKW,JPOLD)
GLLBEF = NIL
2040 IF (GLLEV) 20,20,5120
C
C--------------------------------------ENTRY TERPRI2
2500 DO 2510 I = 1,2
2510 CALL TERPRI
IF (JPCOM) 2025,2025,3040
C
C--------------------------------------ENTRY LINEBREAK(X)
3000 IF (LPRBRK.EQ.-1) GOTO 3030
C COMMENT NEXT ?
IF (NLISTP(X)) GOTO 3010
XX = CAR(X)
IF (XX.GT.NATOM) GOTO 3010
XX = GET(XX,FNCELL)
IF (CDR(XX).NE.QUOTE) GOTO 3010
C SWITCH TO COMMENT MODE
JPCOM = JP-IDIV
XX = LMARG
LMARG = CCOL
IRET = 20-MARG
C CALL NCHARS(X)
GOTO 1500
C--FROM NCHARS
3001 X = STACK(JP)
X = CAR(X)
IF (IRET.LE.MARG) GOTO 3025
LMARG = 10
GOTO 2500
C NOT COMMENT
3010 IF (LI.LT.2 .OR. LPRBRK.NE.1) GOTO 3020
IF (LISTP(X)) GOTO 3025
C PROG--LABEL
CALL TERPRI
PRTPOS = LMARG-5
GOTO 3040
C NOT PROG.
3020 IF (.NOT.(LISTP(X) .OR. GLLBEF.NE.NIL)) GOTO 3030
3025 IF (PRTPOS.GE.LMARG) CALL TERPRI
PRTPOS = LMARG
GOTO 3040
C (SPACES 1)
3030 PRTPOS = PRTPOS+1
C--FROM TERPRI2 RETURN