ack/lang/a68s/liba68s/widen.p

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1988-10-04 13:41:01 +00:00
57300 #include "rundecs.h"
57310 (* COPYRIGHT 1983 C.H.LINDSEY, UNIVERSITY OF MANCHESTER *)
57320 (**)
57330 (**)
57340 PROCEDURE GARBAGE (ANOBJECT: OBJECTP); EXTERN ;
57350 (**)
57360 (**)
57370 FUNCTION WIDENM(COUNT: INTEGER): OBJECTP;
57380 VAR NEWELS, NEWMULT: OBJECTP;
57390 BEGIN
57400 ENEW(NEWMULT, MULTCONST+SZPDS);
57410 WITH NEWMULT^ DO
57420 BEGIN
57430 (*-02() FIRSTWORD := SORTSHIFT * ORD(MULT); ()-02*)
57440 (*+02() PCOUNT:=0; SORT:=MULT; ()+02*)
57450 (*+01() SECONDWORD := 0; ()+01*)
57460 SIZE := 1;
57470 WITH DESCVEC[0] DO
57480 BEGIN LI := 1; UI := COUNT; DI := SZINT END;
57490 ROWS := 0; LBADJ := SZINT-ELSCONST; PCOUNT := 1;
57500 MDBLOCK := ASPTR(SZINT);
57510 ENEW(NEWELS, ELSCONST+COUNT*SZINT);
57520 WITH NEWELS^ DO
57530 BEGIN
57540 (*-02() FIRSTWORD := SORTSHIFT * ORD(IELS); ()-02*)
57550 (*+02() PCOUNT:=0; SORT:=IELS; ()+02*)
57560 OSCOPE := 0;
57570 IHEAD := NIL;
57580 DBLOCK := ASPTR(SZINT); D0 := COUNT*SZINT; CCOUNT := 1; PCOUNT := 1;
57590 END;
57600 PVALUE := NEWELS; IHEAD := NIL; FPTR := NIL; BPTR := NIL
57610 END;
57620 WIDENM := NEWMULT;
57630 END;
57640 (**)
57650 (**)
57660 FUNCTION WIDBITS(BITS: INTEGER): OBJECTP;
57670 (*PWIDEN+5*)
57680 VAR NEWMULT: OBJECTP;
57690 PTR: UNDRESSP;
57700 BEGIN
57710 NEWMULT := WIDENM(BITSWIDTH);
57720 WITH NEWMULT^ DO
57730 BEGIN
57740 PTR := INCPTR(PVALUE, ELSCONST);
57750 WHILE ORD(PTR)<ORD(PVALUE)+ELSCONST+BITSWIDTH DO
57760 BEGIN PTR^.FIRSTWORD := BITS; BITS := BITS*2; PTR := INCPTR(PTR, SZINT) END;
57770 END;
57780 WIDBITS := NEWMULT;
57790 END;
57800 (**)
57810 (**)
57820 FUNCTION WIDBYTS(BYTES: INTEGER): OBJECTP;
57830 (*PWIDEN+6*)
57840 VAR NEWMULT: OBJECTP;
57850 BBB: RECORD CASE SEVERAL OF
57860 1: (B1: INTEGER);
57870 2: (B2: PACKED ARRAY [1..BYTESWIDTH] OF CHAR);
57880 0 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 : () ;
57890 END;
57900 PTR: UNDRESSP; I: INTEGER;
57910 BEGIN
57920 NEWMULT := WIDENM(BYTESWIDTH);
57930 BBB.B1 := BYTES;
57940 PTR := INCPTR(NEWMULT^.PVALUE, ELSCONST);
57950 FOR I := 1 TO BYTESWIDTH DO
57960 BEGIN PTR^.FIRSTINT := ORD(BBB.B2[I]); PTR := INCPTR(PTR, SZINT) END;
57970 WIDBYTS := NEWMULT;
57980 END;
57990 (**)
58000 (**)
58010 FUNCTION WIDSTR(STR: OBJECTP): OBJECTP;
58020 (*PWIDEN+7*)
58030 VAR NEWMULT: OBJECTP;
58040 PTR: UNDRESSP; I: INTEGER;
58050 BEGIN
58060 NEWMULT := WIDENM(STR^.STRLENGTH);
58070 PTR := INCPTR(NEWMULT^.PVALUE, ELSCONST);
58080 FOR I := 1 TO STR^.STRLENGTH DO
58090 BEGIN PTR^.FIRSTINT := ORD(STR^.CHARVEC[I]); PTR := INCPTR(PTR, SZINT) END;
58100 IF FPTST(STR^) THEN GARBAGE(STR);
58110 WIDSTR := NEWMULT;
58120 END;
58130 (**)
58140 (**)
58150 (*-02() BEGIN END ; ()-02*)
58160 (*+01()
58170 BEGIN (*OF MAIN PROGRAM*)
58180 END (*OF EVERYTHING*).
58190 ()+01*)