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PDP-10 Archives
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decuslib20-01
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decus/20-0002/munge.sai
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ENTRY AMUNGE,UNMUNGE,GMUNGE,GUNMUN;
BEGIN "MUNGE"
INTEGER ARSUB1,ARSUB2,ARSUB3,ARSUB4,ARSUB5;
EXTERNAL INTEGER DATM,GDATM;
EXTERNAL INTEGER PROCEDURE IFGLOBAL(ITEMVAR X);
DEFINE P="'17",
!="COMMENT";
INTERNAL SIMPLE INTEGER PROCEDURE AMUNGE(ITEMVAR X);
BEGIN INTEGER RETVAL,GLBFLAG;INTERNAL LABEL AMUNG2;
LABEL GLBITM;
STARTCODE
PUSH P,-1(P); ! THE ITEM;
PUSHJ P,IFGLOBAL; ! SEE IF GLOBAL;
MOVE 3,-1(P); ! THE PARAM.;
JUMPN 1,GLBITM; ! YES, GLOBAL ITEM;
HRRZ 3,@DATM; ! THE ARRAY DESCRIPTOR;
JRST AMUNG2; ! HAVE DESCRIPTOR;
GLBITM: HRRZ 3,@GDATM; ! GET GLOBAL DESCRIPTOR;
AMUNG2: SKIPG -2(3); ! STRING ARRAY?;
SUBI 3,1; ! YES.;
HRRZ 1,-1(3); ! TOTAL SIZE OF ARRAY;
SKIPG -1(3); ! STRING ARRAY?;
LSH 1,-1; ! YES DIVIDE SIZE BY TWO;
MOVEM 1,RETVAL; ! VALUE TO BE RETURNED;
HRROI 4,-1(3); ! LAST OF WORDS TO BE SAVED;
POP 4,ARSUB1; ! DIMEN ENTRY;
POP 4,ARSUB2; ! MULT.;
POP 4,ARSUB3; ! UPPER BOUND;
POP 4,ARSUB4; ! LOWER BOUND;
POP 4,ARSUB5; ! VIRT ORG OR MULT;
HRRZI 5,-1(3); ! VIRT ORG OF MUNGED ARRAY;
MOVEM 5,-5(3); ! MUNGE VIRT ORG.;
MOVEI 5,1;
MOVEM 5,-4(3); ! LOWER BOUND IS 1;
MOVEM 1,-3(3); ! UPPER BOUND IS SIZE;
MOVEM 5,-2(3); ! MULTIPLIER IS 1;
SKIPG -1(3); ! STRING ARRAY?;
MOVNI 5,1; ! NEGATE DIMENSION;
HRLM 5,-1(3); ! STORE DIMENSION= 1;
END;
RETURN(RETVAL);
END;
INTERNAL SIMPLE PROCEDURE UNMUNGE(ITEMVAR X);
BEGIN INTERNAL LABEL UNMUN2; LABEL GLBITM;
STARTCODE
PUSH P,-1(P);
PUSHJ P,IFGLOBAL;
MOVE 3,-1(P);
JUMPN 1,GLBITM;
HRRZ 3,@DATM;
JRST UNMUN2;
GLBITM: HRRZ 3,@GDATM;
UNMUN2: SKIPG -2(3);
SUBI 3,1;
MOVE 1,ARSUB1;
MOVEM 1,-1(3);
MOVE 1,ARSUB2;
MOVEM 1,-2(3);
MOVE 1,ARSUB3;
MOVEM 1,-3(3);
MOVE 1,ARSUB4;
MOVEM 1,-4(3);
MOVE 1,ARSUB5;
MOVEM 1,-5(3);
END;
END;
INTERNAL SIMPLE INTEGER PROCEDURE GMUNGE(ITEMVAR X);
BEGIN EXTERNAL INTEGER AMUNG2;
STARTCODE
HRRZ 3,-1('17);
HRRZ 3,@GDATM;
JRST AMUNG2;
END;
END;
INTERNAL SIMPLE PROCEDURE GUNMUN(ITEMVAR X);
BEGIN EXTERNAL INTEGER UNMUN2;
STARTCODE
HRRZ 3,-1('17);
HRRZ 3,@GDATM;
JRST UNMUN2;
END;
END;
END "MUNGE"