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Trailing-Edge - PDP-10 Archives - FORTRAN-10_V7wLink_Feb83 - forcnv.mac
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	SEARCH	FORPRM
	TV	FORCNV	CONVERSION ROUTINES ,7(3252)

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1981, 1983

;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
;ONLY  IN  ACCORDANCE  WITH  THE  TERMS  OF  SUCH LICENSE AND WITH THE
;INCLUSION OF THE ABOVE COPYRIGHT NOTICE.  THIS SOFTWARE OR ANY  OTHER
;COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
;OTHER PERSON.  NO TITLE TO AND OWNERSHIP OF THE  SOFTWARE  IS  HEREBY
;TRANSFERRED.

;THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT  NOTICE
;AND  SHOULD  NOT  BE  CONSTRUED  AS A COMMITMENT BY DIGITAL EQUIPMENT
;CORPORATION.

;DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY  OF  ITS
;SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.

	SUBTTL	REVISION HISTORY

COMMENT \

***** Begin Revision History *****

256	 -----	CORRECT %LSTDR TO CHANGE F%ELT TO F%EXT
345	(Q2322)	OUTPUT 2 WORDS OF DBLE PREC VAR EVEN IF F FORMAT REQUIRED
347	 -----	RESTRICT DELIMITER FOR LIST-DIRECTED INPUT TO BLANK,
		COMMA AND LINE TERMINATOR
350	(13704)	LIST-DIRECTED INPUT DOES NOT TAKE END= RETURN
354	 -----	FIX FREE FORMAT ON INPUT
357	 -----	REDEFINE LABEL ERROR FOR MACRO V50
366	 -----	FIX LIST DIRECTED I/O FOR ARRAYS
367	(13951)	FIXED INTEGER FORMAT LOOSES BLANKS AT END OF RECORD
372	 -----	FIX NAMELIST
373	(13917)	FIX SCALING FACTOR
374	 -----	END OF NAMELIST LIST FOR F10-V2
376	 -----	CORRECT FIXED "A" FORMAT AFTER FREE FORMAT
377	 -----	FIX  F  FORMAT
400	 -----	FIX TO EDIT 372
426	15142	HAVE NAMELIST ACCEPT ANY 6 CHARS NAMELIST NAME
430	15596	FIX SO SCALING ON OUTPUT AFTER NAMELIST INPUT WORKS
433	15880	FIX INPUT OF OCTAL NUMBERS TO CORRECTLY HANDLE MINUS SIGN
441	16108	FIX %FLOUT SO SINGLE PREC. NOS. LIKE -1.999999 DON'T
		LOSE PRECISION
445	16517	FIX NAMELIST INPUT SO FLOATING POINT TO INTEGER CONV.
		WORKS FOR ALL CASES EVEN #'S LIKE 1.0

***** Begin Version 4C *****

461	16741	FIX NAMELIST TO ACCEPT ANY 6 CHAR VARIABLE NAME
462	16796	FIX %FLIRT SO CALL TO ILL CAUSES ILLEGAL CHARS IN DATA
		TO BE SET TO ZERO AND NOT SKIP VALID FOLLOWING CHARS
465	17142	FIX %NMLST TO INPUT STRINGS INTO DOUBLE PRECISION AND
		COMPLEX VARIABLES CORRECTLY.
476	17725	FIX G FORMAT WHEN FIELD TOO SMALL UNLESS 4X REMOVED.
517	18268	FIX F2.0 TO NEVER PRINT JUST A DOT.
533	19239	FIX %LSTDR TO CORRECTLY INPUT STRINGS INTO DOUBLE
			PRECISION NUMBERS.
534	19239	FIX %NMLST FOR INPUT OF STRINGS INTO ARRAYS
541	19793	FIX %NMLST FOR LIST-DIRECTED INPUT OF QUOTED STRINGS
			INTO ARRAYS WILL CLEAR F%QOT
544	12882	MAKE  P SCALING WORK WITH F FORMAT FOR NUMBERS
			WHICH ARE IDENTICALLY ZERO
563	(V5)	MAKE F FORMAT USE BOTH WORDS FOR DOUBLE PRECISION
			(%FLIRT AND %FLOUT)
566	Q00569	PRINT ZERO EXPONENT FOR IDENTICAL ZERO, D OR E
			FORMAT (%FLOUT)
574	Q00654	LIST DIRECTED INPUT OF COMPLEX NUMBERS SHOULD
		REQUIRE PARENTHESIS AROUND THE ARGUMENT, AND
		IF THERE IS A REPEAT COUNT IT SHOULD BE DELIMITED
		BY AN ASTERISK.
575	18964	LIST-DIRECTED I/O DOES NOT PROPERLY HANDLE S-LISTS
			WITH INCREMENTS NOT EQUAL TO ONE.
576	18964	LIST DIRECTED INPUT DOES NOT PROPERLY HANDLE S-LISTS
		WITH INCREMENTS OTHER THAN ONE.

	BEGIN VERSION 5A, 7-NOV-76

622	QA873	NAMELIST PARTIAL ARRAYS AT END OF LIST

***** Begin Version 5A *****

652	22508	EXPONENT FIELDS SHOULD ACCEPT LOWER CASE D AND E
653	22543	ACCEPT LOWER CASE T AND F FOR TRUE AND FALSE
654	-----	FIX FLIRT TO HANDLE ALL INTEGERS CORRECTLY AND
		FIX NAMELIST TO STORE DATA TYPE IN LOW CORE
660	-----	FIX %FLOUT TO USE 8 NOT 9 AS MAX NUMBER OF MANTISSA
		  DIGITS TO PRINT ON SINGLE PRECISION SO 5.55 IN F20.17
		  WON'T PRINT AS 5.55000001...
		NULLIFIED IN VERSION 6 - THE SINGLE PRECISION REPRESENTATION
		  OF 5.55 IS 5.55000001. IF THE USER WANTS MORE DIGITS THAN
		  THE "ACCURACY" OF THE MACHINE, WE WILL PRINT WHAT IS
		  THERE, SO AS TO PRINT ENOUGH PRECISION TO HAVE
		  ABSOLUTE DIFFERENTIATION BETWEEN NUMBERS (I.E., SO THAT
		  OUTPUT FOLLOWED BY INPUT WILL ALWAYS YIELD THE SAME
		  INTERNAL REPRESENTATION).
673	22607	IMPLEMENT VBL WIDTH DOUBLE PRECISION OCTAL I/O.

***** Begin Version 5B *****

735	24788	FIX EDIT 673 FOR KA SO THAT NEXT WORD IS NOT OVERWRITTEN
		WHEN DOING SINGLE PRECISION OCTAL INPUT
740	24891	FIX LIST-DIRECTED/NAMELIST OUTPUT TO SET G FORMAT
		FLAG BEFORE CALLING %REAL ON EACH PART OF COMPLEX VBL
756	25638	USE DEFAULT F FORMAT TO COUNT THE NO. OF ZEROS AFTER DECIMAL
		POINT WHEN THE NUMBER IS TOO SMALL TO PRINT.
761	11923	FIX EDIT 654 TO HANDLE INPUT INTEGERS CORRECTLY IN %FLIRT.
764	26523	IN %NMLST, CHECK FOR NULL FIELDS WITH LIST DIRECTED INPUT
		OF LOGICAL VARIABLE.
770	26836	FIX %NMLST TO HANDLE THE NAMELIST COMPLEX ARRAYS CORRECTLY


	BEGIN VERSION 6

	REWORK ALL CONVERSION ROUTINES SO THEY HAVE SEPARATE
	INPUT AND OUTPUT ENTRY POINTS WITH COMMON SETUP ROUTINES.
	SEPARATED R-FORMAT CODE FROM A-FORMAT CODE, BUT USED
	COMMON SETUP ROUTINES.

	REDUCED NUMBER OF ACCUMULATORS USED BY FLIRT AND FLOUT,
	AND REWORKED ALL CONVERSION ROUTINES TO USE VERSION 6
	ACCUMULATOR CONVENTIONS.

	INSTALLED EXTENDED EXPONENT HANDLING IN FLIRT, FLOUT,
	AND NAMELIST/LIST-DIRECTED I/O. INSTALLED SPARSE POWER
	OF TEN IN POWTAB FOR USE WITH EXTENDED EXPONENT.

	INCREASED NUMBER OF ENTRY POINTS IN FLOUT, AND
	THEREBY MADE G-FORMAT FLAG, E-FORMAT FLAG, AND D-FORMAT
	FLAG LOCAL TO FLOUT (ALTHOUGH THEY ARE STILL DEFINED
	IN FORPRM).

	MADE ALL NUMBER-HANDLING IN FLIRT/FLOUT DOUBLE-PRECISION,
	THUS ELIMINATING EXTRA SINGLE-PRECISION CODE, INCREASING
	ACCURACY OF SINGLE PRECISION NUMBERS, AND INCREASING
	TIME SPENT BY 1% OR SO.

	COMPLETELY REWROTE ROUNDING ALGORITHM, USING 9'S DIGIT
	COUNTER INSTEAD OF ADDING (INACCURATE) AMOUNTS FROM
	A ROUNDING TABLE.

	REMOVED OPTIONAL LEADING ZERO FROM FLOUT, THEREBY REMOVING
	A GREAT DEAL OF EXCESS CODE.

	IMPLEMENTED VARIABLE-SIZE EXPONENT WIDTH, INCLUDING
	LEAVING OFF 'D' OR 'E' IF EXPONENT IS TOO BIG.

	IMPLEMENTED S,SP,SS,BN,BZ FORMATS, AS WELL AS Iw.m AND Ow.m.

	MOVED ALL FREE-FORMAT HANDLING (SCANNING FOR DELIMITERS, ETC)
	OUT OF CONVERSION ROUTINES INTO THE FORMAT PROCESSOR,
	NAMELIST/LDIO, AND %SKIP.


????	???	??-???-80	Q10-04560
	FIXED ERROR CALL IN NAMELIST/LDIO AT SETNUL. SHOULD HAVE
	BEEN %ILCHR, WAS %ILCH1, ARROW WAS OFF BY 1.

1153	JLC	9-Sep-80	---------
	SPED UP ALPHI/ALPHO BY REMOVING SOME COMMON CODE,
	REMOVING CALL TO %SAVE2.

1154	JLC	9-Sep-80	---------
	FIX TO INTI FOR OVERFLOW - OUTPUTS OVERFLOW MSG
	AND SETS VALUE TO HIGHEST INTEGER.

1155	JLC	9-Sep-80	---------
	FIX FLOUT TO TURN OFF BIT 0 OF 2ND WORD TO
	PREVENT INTEGER OVERFLOWS FROM FLOUT.

1156	JLC	26-Sep-80	---------
	NAMELIST WAS NOT INSISTING ON BEGINNING
	'$' BEING IN COLUMN 2 AFTER SKIPPING DATA. IT WAS
	ALSO EATING THE BEGINNING '$' OF A NAMELIST WHILE
	TRYING TO READ THROUGH GARBAGE RECORDS IF THE GARBAGE
	HAD A ENDING '$' FROM A PREVIOUS ABORTIVE NAMELIST READ

1163	JLC	23-Oct-80	---------
	FIXED R-FORMAT INPUT

1172	JLC	2-Dec-80	Q20-01318
	DPFLG WAS NOT GETTING CLEARED IN ALPHI/ALPHO.

1314	EDS	4-Mar-81	Q20-01392
	Change NAMELIST input to ignore anything in column 1 of the
	data stream under a feature test switch FTNLC1.  Change
	NAMELIST output to terminate with $END.

1347	DAW	16-Mar-81
	Patch to allow FLIRT. to run in extended addressing, also
	changes to list-directed I/O routines.

1371	JLC	27-Mar-81
	Make zero-trip I/O loops work for list-directed I/O

1440	DAW	17-Apr-81
	Some extended addressing support.

1446	DAW	22-Apr-81
	Rework NMLST code to not smash P4 in a lower-level routine;
	fixes bug caused by edit 1440.

1464	DAW	12-May-81
	Error messages.

1470	CKS	22-May-81	Q20-1360
	Fix overflow in FLOUT. Incrementing double integer didn't check
	for carry between words.

1514	JLC	8-Jun-81
	Fix several bugs in NAMELIST code (subscript out of range),
	added code to accept rest of array if data specifies array
	reference, fixed column 1 skip feature test code.

1521	JLC	26-Jun-81
	Change EOF processing so it doesn't use D%EOF to check.
	Instead check D%END and IRCNT(D).LE.0.

1522	JLC	01-Jul-81
	Fix R format output to match R format input. For width
	greater than 5, bit 0 of low-order word is still 0, and
	excess characters are right justified in the high-order
	word.

1532	DAW	14-Jul-81
	OPEN rewrite: Base level 1

1557	JLC	24-Jul-81
	FLOUT uses double precision for everything. Therefore
	output the same number of digits maximum (20) if the
	program asks for them.

1560	DAW	28-Jul-81
	OPEN rewrite: Base level 2

1606	DAW	13-Aug-81
	Fix right-justified output of one-word items.

1625	DAW	21-Aug-81
	Get rid of "DF".

1626	DAW	24-Aug-81
	Change AC names in FLIRT and FLOUT so "D" is not defined there.

1644	JLC	27-Aug-81
	Make free-format A stop on comma. Change R*<space>C to
	be R*C, at least for version 6. Leave code to make it
	R*,C in repeat 0 in case the ANSI Committee makes a
	firm decision.

1662	DAW	4-Sep-81
	%CALU; user error handling routine.

1710	JLC	14-Sep-81
	Fixed problems with delimiter in namelist/ldio.

1733	BL	22-Sep-81
	Problem finding beginning of NAMELIST.

1736	JLC	23-Sep-81
	Fix to edit 1733.

1740	JLC	23-Sep-81
	Added check for legal delimiter at end of scan for
	namelist and list-directed I/O.

1745	JLC	24-Sep-81
	Fixed "r*,", was skipping over the comma.

2014	AHM/JLC	19-Oct-81
	Number of dimensions in a NAMELIST is now bits 2-8 for
	extended addressing compatability.
	Fixed illegal (too big) subscript in NAMELIST to give
	error.

2016	JLC	20-Oct-81
	Remove temporary one-trip in LDSET, now fixed in SLIST
	and ELIST.

2021	JLC	22-Oct-81
	Change ALPHI to substitute 5 or 10 for field width of 0,
	required by ANSI standard.

2024	DAW	26-Oct-81
	Make $ECALL ILC return to %ABORT - it's a fatal error now.

2032	JLC	29-Oct-81
	Fix KI code for DPMUL.

2033	JLC	19-Nov-81
	Pad R-format with spaces instead of nulls (like V5A).
	Make ILS error go to %ABORT if no ERR= branch.

***** Begin Version 6A *****

2037	DAW	21-Dec-81
	NAMELIST input runs too slowly if a large array is read
	one element at a time.

***** Begin Version 7 *****

3002	JLC	23-Oct-81
	Add character I/O to ALPHI and ALPHO.

3004	JLC	27-Oct-81
	Fix ALPHI - was not blank-filling character variables.

3010	JLC	2-Nov-81
	Merged fix from V6.

3012	JLC	4-Nov-81
	Fix character I/O for SLISTS - use some new parameters.

3017	AHM	6-Nov-81
	Make NAMELIST I/O assume that the address of the NAMELIST block
	was specified by an immediate argument.

3023	JLC	15-Nov-81
	Various V6 patches: blank-fill for R-format output, %ABORT call
	after illegal subscript in NAMELIST.

3036	BL	10-Feb-82
	Inserted code for list-directed I/O for character strings.

3040	JLC	11-Feb-82
	Make 0 written with G-format 0.000000E+00, as the ANSI Standard
	says so.

3044	BL	19-Feb-82
	Put NLCPTR in DATA, where it belongs. Initialize properly in
	NLINIT.

3045	BL	23-Feb-82
	Really initialize properly. see #3044.

3050	BL	25-Feb-82
	Install changes from code review (NAMELIST & LISTDIRECTED
	character I/O.

3056	JLC	23-Mar-82
	Separate FORCNV into FORCNV and FORNML (namelist and list-directed
	I/O). Inserted floating overflow and underflow messages in FLIRT.

3075	JLC	31-Mar-82
	Fix overflow/underflow messages in FLIRT and INTI.

3122	JLC	28-May-82
	Change error message calls, make FTAST a switchable flag
	instead of an assembly parameter.

3126	JLC	7-Jun-82
	Remove substitution of blank for null in ALPHO.

3136	JLC	26-Jun-82
	Performance work, fix GFLOAT bug in FLIRT which got overflow or
	underflow results for legal GFLOAT numbers in LDIO.

3143	AHM	6-Jul-82
	Correct AC field of the  XBLT at ALPBLT-3L that sets  extended
	hollerith arrays to spaces before doing input.

3144	AHM	6-Jul-82
	Mend fencepost  at ALPBLT-3L  which cleared  one location  too
	many in the user's array with an XBLT.

3150	JLC	13-Jul-82
	Fixed INTO so it leaves the user's specification of minimum
	number of digits for G-format.

3154	JLC	20-Jul-82
	Fix input of G-float numbers.

3165	JLC	28-Aug-82
	Fix INTI, OCTI, and HEXI so that free format read of
	just a sign returns 0 and does not go into infinite loop.

3166	JLC	30-Aug-82
	Fix to edit 3165 - minus signs were giving Illegal char in data.

3171	JLC	1-Sep-82
	Fix integer input, as edits 3165 and 3166 were slightly off.

3202	JLC	26-Oct-82
	Eliminate double printing of overflow message if exponent
	too large in FLIRT.

3203	JLC	31-Oct-82
	Fix SPCWD problem.

3253	JLC	12-Jan-83
	Fix %SKIP so it actually skips past end of record. Otherwise
	%SFDEL backs up over a real character.

***** End Revision History *****

\

	PRGEND
	TITLE	ALPHA	ALPHANUMERIC INPUT/OUTPUT ROUTINES 
	SUBTTL	D. TODD/DRT/HPW/MD		28-Oct-81
	SEARCH	FORPRM




;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

;FROM LIB40 %4(354)

	SEGMENT	CODE

	ENTRY	%ALPHI,%ALPHO,%RIGHI,%RIGHO
	EXTERN	%IBYTE,%OBYTE,W.PNTR
	EXTERN	IO.ADR,IO.SIZ,IO.TYP,%SAVE2
	EXTERN	%SIZTB,%IMBYT,%OMBYT,%OMSPC
	EXTERN	%CIPOS,IO.INS,IO.NUM,IO.INC,ENC.LR

DPFLG==1

%ALPHI:	MOVE	T1,IO.TYP	;GET DATA TYPE
	CAIE	T1,TP%CHR	;CHARACTER?
	 JRST	ALPNIN		;NO. NUMERIC
	PUSHJ	P,ALPCHR	;DO CHARACTER SETUP
	MOVE	T1,ALPSIZ	;USE FULL ENTRY SIZE, AS FILL IS NEEDED
	MOVEM	T1,ALPBYT
AICOM:	MOVE	T2,ALPSIZ	;GET FULL ENTRY SIZE IN BYTES
	MOVE	T1,ALPWID	;GET FORMAT WIDTH
	CAMG	T1,T2		;WIDTH .GT. SIZE?
	 JRST	AIMAT		;NO. GO MOVE AND FILL
	SUB	T1,T2		;GET # CHARS TO SKIP
	PUSHJ	P,%CIPOS	;SKIP THEM
	MOVE	T0,ALPBYT	;USE DEST COUNT FOR LEFTOVER SOURCE COUNT
	JRST	AIMOVE

AIMAT:	MOVE	T0,ALPWID	;GET # CHARS TO TRANSFER
AIMOVE:	MOVE	T3,ALPBYT	;GET DESTINATION SIZE
	MOVE	T4,ALPNTR	;AND DEST POINTER
	PUSHJ	P,%IMBYT	;MOVE THE STRING
	SKIPN	T1,ALPLI	;ANY LOCAL INCREMENT?
	 JRST	AINLI		;NO
	XCT	ALPINS		;YES. INCREMENT THE POINTER
	MOVEM	T1,ALPNTR	;SAVE IT BACK
	SOSLE	ALPLC		;DECR LOCAL COUNT
	 JRST	AICOM		;MORE TO GO
AINLI:	SKIPN	T1,ALPINC	;GET TOTAL INCREMENT
	 POPJ	P,		;NONE
	XCT	IO.INS		;INCREMENT DATA POINTER
	MOVEM	T1,IO.ADR	;SAVE IT BACK
	MOVN	T1,ALPNEN	;GET NUMBER OF EXTRA ENTRIES PROCESSED
	ADDM	T1,IO.NUM	;DECR NUMBER ENTRIES
	ADDM	T1,ENC.LR	;DECR FORMAT REPEAT COUNT
	POPJ	P,

ALPNIN:	PUSHJ	P,ALPNUM	;SET VARIABLES FOR NUMERIC ENTRIES
	MOVE	T1,ALPSIZ	;GET DESTINATION SIZE
	CAMLE	T1,ALPWID	;BIGGER THAN FORMAT WIDTH?
	 MOVE	T1,ALPWID	;YES. USE WIDTH
	MOVEM	T1,ALPBYT	;AS # INPUT BYTES, AS NO PAD NEEDED
	MOVE	T1,SPCWD(D)	;GET A WORD OF SPACES
	MOVEM	T1,@IO.ADR	;INITIALIZE 1ST DATA WORD
	MOVE	T2,ALPNEL	;GET # WORDS TO INIT
	CAIG	T2,1		;MORE THAN 1?
	 JRST	AICOM		;NO. JUST MOVE THE STRING
	MOVE	T3,IO.ADR	;YES. GET THE SOURCE ADDR
	TLNN	T3,-1		;NON-ZERO SECTION?
	 JRST	ALPBLT		;NO. USE STANDARD BLT
	SUBI	T2,1		;[3144] One word has already been cleared
	XMOVEI	T4,1(T3)	;DEST IS C(IO.ADR)+1
	EXTEND	T2,[XBLT]	;[3143] Init the array
	JRST	AICOM		;JOIN COMMON CODE

ALPBLT:	ADDI	T2,(T3)		;GET FINAL ADDR+1
	HRLI	T3,(T3)		;GET SOURCE ADDR
	ADDI	T3,1		;GET DEST ADDR
	BLT	T3,-1(T2)	;INIT THE ARRAY
	JRST	AICOM


%ALPHO:	MOVE	T1,IO.TYP	;GET DATA TYPE
	CAIN	T1,TP%LIT	;LITERAL STRING?
	 JRST	ALPLOU		;YES. TAKE THE SLOW BOAT
	CAIE	T1,TP%CHR	;CHARACTER?
	 JRST	ALPNOU		;NO. NUMERIC
ALPCOU:	PUSHJ	P,ALPCHR	;DO CHARACTER SETUP
AOCOM:	MOVE	T2,ALPSIZ	;GET ENTRY SIZE
	MOVE	T1,ALPWID	;GET FORMAT WIDTH
	CAMG	T1,T2		;WIDTH .GT. SIZE?
	 JRST	AOTRUN		;NO. GO MOVE AND TRUNCATE IF NECESSARY
	SUB	T1,T2		;GET # CHARS TO SKIP
	PUSHJ	P,%OMSPC	;FILL WITH SPACES
	MOVE	T0,ALPSIZ	;AND PROCEED WITH MOVING STRING
	JRST	AOMOVE

AOTRUN:	MOVE	T0,ALPWID	;USE FORMAT WIDTH
AOMOVE:	MOVE	T1,ALPNTR	;GET DATA POINTER
	PUSHJ	P,%OMBYT	;MOVE STRING
	SKIPN	T1,ALPLI	;ANY LOCAL INCREMENT?
	 JRST	AONLI		;NO
	XCT	ALPINS		;YES. INCREMENT THE POINTER
	MOVEM	T1,ALPNTR	;SAVE IT BACK
	SOSLE	ALPLC		;DECR LOCAL COUNT
	 JRST	AOCOM		;MORE TO GO
AONLI:	SKIPN	T1,ALPINC	;GET TOTAL INCREMENT
	 POPJ	P,		;NONE
	XCT	IO.INS		;INCREMENT DATA POINTER
	MOVEM	T1,IO.ADR	;SAVE IT BACK
	MOVN	T1,ALPNEN	;GET NUMBER OF EXTRA ENTRIES PROCESSED
	ADDM	T1,IO.NUM	;DECR NUMBER ENTRIES
	ADDM	T1,ENC.LR	;DECR FORMAT REPEAT COUNT
	POPJ	P,

ALPNOU:	PUSHJ	P,ALPNUM	;SETUP FOR NUMERIC DATA
	JRST	AOCOM		;JOIN COMMON CODE

;LITERAL OUTPUT - SCAN THE SOURCE STRING FOR A NULL, COUNTING
;THE CHARACTERS. THEN CREATE A STRING DESCRIPTOR, AND JOIN THE
;CHARACTER CODE ABOVE.
ALPLOU:	MOVE	T1,IO.ADR	;GET ADDRESS
	$BLDBP	T1		;BUILD A BYTE POINTER TO IT
	MOVEM	T1,IO.ADR	;SAVE IT BACK FOR LATER
	SETZ	T2,		;CLEAR A CHAR COUNT
LOULP:	ILDB	T3,T1		;GET A CHAR
	JUMPE	T3,LOUEND	;NULL. WE'RE DONE COUNTING
	AOJA	T2,LOULP	;NOT. COUNT IT

LOUEND:	MOVEM	T2,IO.SIZ	;SAVE SIZE
	JRST	ALPCOU		;GO TO CHARACTER OUTPUT


ALPCHR:	MOVE	T1,IO.SIZ	;GET ENTRY SIZE
	MOVEM	T1,ALPSIZ	;SAVE IT
	PUSHJ	P,CHKOPT	;CHECK FOR POSSIBLE OPTIMIZATIONS
	MOVE	T1,IO.ADR	;GET BYTE PNTR
	MOVEM	T1,ALPNTR	;SAVE IT
	MOVE	T1,[ADJBP T1,ALPNTR] ;GET PNTR INCR INSTRUCTION
	MOVEM	T1,ALPINS	;SAVE IT FOR LOOP
	POPJ	P,

ALPNUM:	MOVE	T1,IO.SIZ	;GET ENTRY SIZE IN WORDS
	IMULI	T1,IBPW		;GET IT IN BYTES
	MOVEM	T1,ALPSIZ	;SAVE IT
	PUSHJ	P,CHKOPT	;CHECK FOR POSSIBLE OPTIMIZATIONS
	MOVE	T1,IO.ADR	;GET DATA ADDR
	$BLDBP	T1		;BUILD A BYTE POINTER
	MOVEM	T1,ALPNTR	;SAVE IT
	MOVE	T1,[ADD	T1,ALPNTR] ;GET ADDR INCR INSTRUCTION
	MOVEM	T1,ALPINS	;SAVE IT FOR LOOP
	POPJ	P,

CHKOPT:	LDB	T1,W.PNTR	;GET FORMAT WIDTH
	JUMPN	T1,GOTAWD	;DEFAULT TO ENTRY SIZE IF ZERO
	MOVE	T1,ALPSIZ
GOTAWD:	MOVEM	T1,ALPWID	;SAVE IT
	MOVE	T1,IO.SIZ	;GET ELEMENT SIZE
	CAME	T1,IO.INC	;SAME AS INCREMENT?
	 JRST	NOOPT		;NO. SHOULDN'T OPTIMIZE
	MOVE	T1,IO.NUM	;GET # ENTRIES BEING PROCESSED
	CAIG	T1,1		;USEFUL TO OPTIMIZE?
	 JRST	NOOPT		;NO
	MOVE	T2,ENC.LR	;GET # ENTRIES FOR THIS FORMAT ATOM
	CAIG	T2,1		;USEFUL TO OPTIMIZE?
	 JRST	NOOPT		;NO
	CAMLE	T1,T2		;GET SMALLER OF THE TWO
	 MOVE	T1,T2
	MOVEM	T1,ALPLC	;SAVE AS LOCAL ENTRY COUNT
	SUBI	T1,1		;CALC # EXTRA ENTRIES BEING PROCESSED
	MOVEM	T1,ALPNEN	;SAVE IT
	IMUL	T1,IO.SIZ	;GET # WORDS/CHARS TO COMBINE
	MOVEM	T1,ALPINC	;SAVE TOTAL INCREMENT
	ADD	T1,IO.SIZ	;RESTORE TO FULL ELEMENT COUNT
	MOVEM	T1,ALPNEL	;SAVE # WORDS/CHARS
	MOVE	T1,ALPWID	;GET FORMAT WIDTH
	CAME	T1,ALPSIZ	;SAME AS ELEMENT SIZE?
	 JRST	OPTONE		;NO. ONE BY ONE CASE
	MOVE	T1,ALPLC	;GET # ENTRIES AGAIN
	IMULB	T1,ALPWID	;CALCULATE # CHARS, MAKE IT WIDTH
	MOVEM	T1,ALPSIZ	;SAVE AS HUGE SIZE
	SETZM	ALPLI		;NO LOCAL INCREMENT
	SETZM	ALPLC		;NO LOCAL COUNT
	POPJ	P,

OPTONE:	MOVE	T1,IO.INC	;USE GIVEN INCREMENT
	MOVEM	T1,ALPLI	;AS LOCAL ONE
	POPJ	P,

NOOPT:	SETZM	ALPNEN		;NO EXTRA ENTRIES BEING PROCESSED
	SETZM	ALPINC		;NO TOTAL INCREMENT
	SETZM	ALPLC		;NO LOCAL COUNT
	SETZM	ALPLI		;AND NO LOCAL INCREMENT
	MOVE	T1,IO.SIZ	;GET # ELEMENTS/ENTRY
	MOVEM	T1,ALPNEL	;SAVE AS WORDS/CHARS PROCESSED
	POPJ	P,

;ROUTINES TO RIGHT JUSTIFY ASCII STRING IN THE USER'S NUMERIC VARIABLE
;CHARACTER VARIABLES ILLEGAL
%RIGHI:	PUSHJ	P,ALPSET	;DO GENERAL SETUP
	MOVE	T2,IO.ADR	;GET THE VARIABLE ADDR
	JUMPG	T5,RI1		;WIDTH SPECIFIED
	 MOVEI	T5,(T4)		;NO-SET DEFAULT
RI1:	SUBI	T4,(T5)		;GET NEG FILL NEEDED
	JUMPGE	T4,RIGHI1	;NO SKIP IF .GE. 0
	ADD	T5,T4		;THERE IS FILL. SET WIDTH TO MAX DEFAULT
RIGHI0:	PUSHJ	P,%IBYTE	;EXCESS W SKIP INPUT CHARACTERS
	AOJL	T4,RIGHI0	;CONTINUE SKIPPING
RIGHI1:	SETZB	T3,T4		;CLEAR THE RECEIVING WORD
RIGHI2:	LSHC	T3,^D7		;SHIFT A CHARACTER
	PUSHJ	P,%IBYTE	;READ A CHARACTER
	IOR	T4,T1		;INSERT THE CHARACTER
	SOJG	T5,RIGHI2	;CONTINUE
	LSHC	T3,1		;CLEAR THE LOW ORDER SIGN BIT
	LSH	T4,-1		;AND POSITION
	MOVEM	T4,(T2)		;STORE THE LOW ORDER WORD (SINGLE)
	TXNE	F,DPFLG		;DOUBLE PRECISION?
	 DMOVEM	T3,(T2)		;STORE BOTH WORDS (DOUBLE)
	POPJ	P,		;RETURN

%RIGHO:	PUSHJ	P,ALPSET	;DO GENERAL SETUP
	SETZ	T2,		;CLEAR HIGH ORDER WORD
	MOVE	T3,@IO.ADR	;GET LOW WORD
	TXNE	F,DPFLG		;BUT IF DOUBLE PRECISION
	 DMOVE	T2,@IO.ADR	;GET BOTH WORDS
	LSH	T3,1		;PUSH LOW WORD TO BIT 0
	TXNE	F,DPFLG		;If double-precision,
	 LSHC	T2,1		;PUSH BOTH WORDS TO BIT 0
	JUMPG	T5,RO1 		;SPECIFIED
	 MOVEI	T5,(T4)		;NO-SET DEFAULT
RO1:	SUBI	T4,(T5)		;GET NEG FILL NEEDED

;Note: T5= # chars to output
;	T4= 0 if output (T5) chars
;	T4= positive if first chars must be skipped
;	T4= negative if not enough chars (pad with spaces)

	JUMPGE	T4,INCPT	;IF NO FILL, TRY SKIP
	ADD	T5,T4		;SET DATA WIDTH TO DEFAULT
	MOVEI	T1," "		;OUTPUT SPACES FOR SKIP WIDTH
RIGHO1:	PUSHJ	P,%OBYTE	;OUTPUT THE SPACE
	AOJL	T4,RIGHO1	;LOOP FOR SKIP WIDTH
INCPT:	JUMPLE	T4,ROLP1	;IF NO SKIP, GO OUTPUT CHARS
RIGHO2:	LSHC	T2,7		;TOSS THE CHARACTER
	SOJG	T4,RIGHO2
ROLP1:	TXNN	F,DPFLG		;If single precision,
	 MOVE	T2,T3		;Get correct word to output
ROLP2:	ROTC	T2,7		;ROTATE CHAR INTO T3
	MOVEI	T1,(T3)		;COPY THE CHAR (WITH TRASH)
	ANDI	T1,177		;TOSS THE TRASH
RONN:	PUSHJ	P,%OBYTE	;OUTPUT THE CHAR
	SOJG	T5,ROLP2
	POPJ	P,		;RETURN TO FOROTS
;Routine to setup for alphabetic conversions
ALPSET:	MOVEI	T4,5		;ASSUME SINGLE PRECISION
	LDB	T5,W.PNTR	;GET THE WIDTH FIELD
	MOVE	T1,IO.TYP	;GET THE VARIABLE TYPE
	MOVE	T1,%SIZTB(T1)	;GET ENTRY SIZE
	ASH	T4,-1(T1)	;IF DP, MUL # CHARS BY 2
	CAIN	T1,2		;DOUBLE?
	 TXOA	F,DPFLG		;YES. SET FLAG
	TXZ	F,DPFLG		;NO. CLEAR IT
	POPJ	P,


	SEGMENT	DATA

ALPLI:	BLOCK	1		;LOCAL PNTR INCREMENT
ALPLC:	BLOCK	1		;LOCAL ENTRY COUNT
ALPNEN:	BLOCK	1		;NUMBER OF EXTRA ENTRIES PROCESSED
ALPINS:	BLOCK	1		;LOCAL PNTR INCREMENT INSTRUCTION
ALPINC:	BLOCK	1		;LOCAL INCREMENT
ALPNEL:	BLOCK	1		;# WORDS OR CHARS BEING PROCESSED
ALPSIZ:	BLOCK	1		;LOCAL ENTRY SIZE IN BYTES
ALPBYT:	BLOCK	1		;FOR INPUT, # CHARS TO TRANSFER
ALPWID:	BLOCK	1		;LOCAL FORMAT WIDTH
ALPNTR:	BLOCK	1		;BYTE POINTER TO VARIABLE

	PRGEND
	TITLE	FLIRT	FLOATING POINT INPUT 
	SUBTTL	DAVE NIXON AND TOM EGGERS
	SUBTTL	D.M.NIXON /DMN/DRT/HPW/MD/CLRH/DCE/CYM	   28-Oct-81
	SEARCH	FORPRM




;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

	SEGMENT	DATA

%FLESG:	BLOCK	1		;EXPONENT SIGN FLAG
%FLFSG:	BLOCK	1		;FRACTION SIGN FLAG
%FLRFR:	BLOCK	2		;RAW FRACTION
%FLRBX:	BLOCK	1		;RAW BINARY EXPONENT

	SEGMENT	CODE

	ENTRY	%FLIRT,%GRIN,%ERIN,%DIRT,%REALI,%FLSPR,%FLDPR,%FLGPR
	INTERN	%FLRFR,%FLRBX,%FLFSG
	EXTERN	%IBYTE,W.PNTR,D.PNTR
	EXTERN	IO.ADR,IO.TYP,IO.INF,%SAVE4,SCL.SV,ILLEG.
	EXTERN	%HITEN,%LOTEN,%EXP10,%PTLEN
	EXTERN	%SKIP,%SIZTB,%HIMAX
	EXTERN	%EEMUL,%EEDIV,%EENRM
	EXTERN	%ABORT


;IF THE FLAG ILLEG. HAS BEEN SET (BY A CALL TO ILL), THE
;INPUT VALUE WILL BE SET TO 0 IF ANY ILLEGAL CHARACTERS
;ARE SCANNED FOR THAT VALUE.

;THE SYNTAX ANALYSIS FOR THE SINGLE AND DOUBLE PRECISION INPUT
;IS STATE TABLE DRIVEN. EACH NEW INPUT CHARACTER IS CONVERTED TO
;A CHARACTER TYPE AND COMBINED WITH THE OLD "STATE". THIS RESULT
;IS THEN LOOKED UP IN THE TABLE "NXTSTA" TO GET THE NEW STATE AND
;AN INDEX INTO THE "XCTTAB" TABLE TO DISPATCH FOR THE INPUT
;CHARACTER. THE STATE TABLE LOGIC AND THE DISPATCH ROUTINES BUILD
;THREE RESULTS: A DOUBLE PRECISION INTEGER(IN B,C) FOR THE FRACTIONAL
;PART OF THE RESULT, AN INTEGER(IN XP) FOR THE EXPONENT AFTER
;"D" OR "E", AND A COUNTER(IN "X") TO KEEP TRACK OF THE DECIMAL POINT.
;WHEN A TERMINATING CHARACTER IS FOUND, THE DOUBLE PRECISION INTEGER
;IS NORMALIZED TO THE LEFT TO GIVE A DOUBLE PRECISION FRACTION.
;THE DECIMAL POINT POSITION(FROM "X")OR THE IMPLIED DECIMAL POINT
;POSITION FROM THE FORMAT STATEMENT, THE "D" OR "E" EXPONENT, AND ANY
;SCALING FROM THE FORMAT STATEMENT ARE COMBINED INTO A DECIMAL
;EXPONENT. THIS DECIMAL EXPONENT IS USED AS AN INDEX INTO A POWER
;OF TEN TABLE (KEPT IN DOUBLE PRECISION INTEGER PLUS EXPONENT FORM
;SO INTERMEDIATE RESULTS WILL HAVE 8 MORE BITS OF PRECISION THAN
;FINAL RESULTS) TO MULTIPLY THE DOUBLE PRECISION FRACTION. THIS
;RESULT IS THEN ROUNDED TO GIVE A SINGLE PRECISION,
;PDP6/KI10 DOUBLE PRECISION RESULT.
;OVERFLOWS RETURN THE LARGEST POSSIBLE
;NUMBER (WITH CORRECT SIGN), WHILE UNDERFLOWS RETURN 0.

;ACCUMULATOR DEFINITIONS

A==T0
B=A+1			;RESULT RETURNED IN A OR A AND B
C=B+1			;B,C, AND D ARE USED AS A MULTIPLE PRECISION
D1=C+1			;  REGISTER FOR DOUBLE PRECISION OPERATIONS
E=D1+1			;EXTRA AC
XP=T5			;EXPONENT AFTER D OR E
BXP=P1			;BINARY EXPONENT
ST==P1			;STATES
;P2			;Used for really temp purposes only
W==P3			;FIELD WIDTH
X==P4			;COUNTS DIGITS AFTER POINT


;RIGHT HALF FLAGS IN AC "F"
DOTFL==1		;DOT SEEN
EXPFL==2		;EXPONENT SEEN IN DATA (MAY BE 0)

LOCFLG==DOTFL+EXPFL

;INPUT CHARACTER TYPES
NULTYP==1	;NULL
DOTTYP==2	;DECIMAL POINT
DIGTYP==3	;DIGITS 0-9
SPCTYP==4	;SPACE OR TAB
EXPTYP==5	;D OR E
PLSTYP==6	;PLUS SIGN (+)
MINTYP==7	;MINUS SIGN (-)
		;ANYTHING ELSE IS TYPE 0
%DIRT:
%ERIN:
%GRIN:
%FLIRT:				;INPUT
	MOVE	T1,IO.TYP	;GET DATA TYPE
	JUMPE	T1,%REALI	;IF ZERO, JUST READ INTO RAW COMPONENTS
	CAIN	T1,TP%DPX	;G-FLOATING?
	 JRST	GPIN		;YES
	MOVE	T1,%SIZTB(T1)	;NO. GET ENTRY SIZE
	CAIN	T1,2		;DOUBLE PRECISION?
	 JRST	DPIN		;YES

SPIN:	PUSHJ	P,%REALI	;GET RAW COMPONENTS
	PJRST	%FLSPR		;AND CONVERT TO SINGLE PRECISION

DPIN:	PUSHJ	P,%REALI	;GET RAW COMPONENTS
	PJRST	%FLDPR		;AND CONVERT TO DOUBLE PRECISION

GPIN:	PUSHJ	P,%REALI	;GET RAW COMPONENTS
	PJRST	%FLGPR		;AND CONVERT TO G-FLOATING

%REALI:	PUSHJ	P,%SAVE4	;SAVE P1-P4
	DSETZM	%FLRFR		;CLEAR ALL RAW DATA AND EXPS
	SETZM	%FLRBX
	TXZ	F,LOCFLG	;CLEAR LOCAL FLAGS IN F
	SETZM	%FLFSG		;CLEAR FRACTION SIGN
	SETZM	%FLESG		;AND EXPONENT SIGN
	SETZM	IO.INF		;CLEAR INFORMATION WORD
	LDB	W,W.PNTR	;GET THE FIELD WIDTH
	SETZB	C,D1		;INIT D.P. FRACTION
	SETZB	ST,XP		;INIT STATE AND DECIMAL EXPONENT
	SETZ	X,		;INIT "DIGITS AFTER POINT" COUNTER
	JUMPG	W,GETCH1	;FIELD SPECIFIED
	SETO	W,		;SET FREE FORMAT FLAG
	PUSHJ	P,%SKIP		;FREE FORMAT - SKIP SPACES
	  JRST	ENDF1		;COMMA OR EOL = NULL FIELD
	JRST	GETCH2		;PROCESS FIELD

GETNXT:
GETCHR:	JUMPE	W,ENDF1		;END OF FIELD
	LSH	ST,-^D30	;MOVE STATE TO BITS 30-32
GETCH1:	PUSHJ	P,%IBYTE	;GET NEXT CHARACTER
GETCH2:	JUMPE	T1,GOTNUL	;GO SET NULL FLAG FOR NULL
	CAIL	T1,"0"		;CHECK FOR NUMBER
	CAILE	T1,"9"
	JRST	CHRTYP		;NO, TRY OTHER
	SUBI	T1,"0"		;CONVERT TO NUMBER
GOT1:	IORI	ST,DIGTYP	;SET TYPE
GOTST:	MOVE	ST,NXTSTA(ST)	;GET NEXT STATE
	ROT	ST,-3		;PUT DISPATCH ADDRESS IN BITS 32-35
				; AND NEW STATE IN BITS 0-2
	MOVEI	P2,(ST)		;GET JUST DISPATCH INDEX
	XCT	XCTTAB(P2)	;DISPATCH OR EXECUTE
	SOJA	W,GETNXT	;RETURN FOR NEXT CHAR.

GOTNUL:	IORI	ST,NULTYP	;FLAG GOT NULL
	JRST	GOTST		;BACK FOR DISPATCH

XCTTAB:	JRST	ILLCH		; (00) ILLEGAL CHAR
	JRST	NULLIN		; (01) NULL	[JLC]
	IORI	F,DOTFL		; (02) PERIOD
	JRST	DIG		; (03) DIGIT BEFORE POINT
	JRST	BLNKIN		; (04) BLANK OR TAB
	SOJA	W,GETNXT	; (05) RETURN FOR NEXT CHAR.
	SETOM	%FLFSG		; (06) NEGATIVE FRACTION
	SETOM	%FLESG		; (07) NEGATIVE EXP
	SOJA	X,DIGAFT	; (10) DIGIT AFTER POINT
	JRST	DIGEXP		; (11) EXPONENT
	JRST	DELCK		; (12) DELIMITER TO BACK UP OVER

CHRTYP:	CAIN	T1,"+"		;CONVERT INPUT CHARS TO CHARACTER TYPE
	IORI	ST,PLSTYP
	CAIN	T1,"-"
	IORI	ST,MINTYP
	CAIE	T1," "		;SPACE
	CAIN	T1,"	"	;TAB
	IORI	ST,SPCTYP
	CAIE	T1,"."		;DECIMAL POINT?
	JRST	NOTDOT		;NO
	IORI	ST,DOTTYP
	HRROS	IO.INF		;SIGNAL DECIMAL POINT FOUND
NOTDOT:	CAIE	T1,"D"
	CAIN	T1,"E"
	JRST	GOTEXP
	CAIE	T1,"d"		;LOWER CASE D?
	CAIN	T1,"e"		;LOWER CASE E?
	JRST	GOTEXP		;YES
	JRST	GOTST		;NO
GOTEXP:	IORI	ST,EXPTYP	;SET STATUS FOR EXPONENT
	HRROS	IO.INF		;SET INFO FOR EXPONENT FOUND
	JRST	GOTST		;GO DISPATCH ON OLD STATE AND CHAR TYPE

DIGAFT:	AOS	IO.INF		;INCR # DIGITS AFTER DOT
DIG:	JUMPN	C,DPDIG		;NEED D.P. YET?
	CAMLE	D1,MAGIC	;NO, WILL MUL AND ADD CAUSE OVERFLOW?
	JRST	DPDIG		;MAYBE, SO DO IT IN DOUBLE PRECISION
	IMULI	D1,12		;NO, MULTIPLY BY 10 SINGLE PRECISION
	ADD	D1,T1		;ADD DIGIT INTO NUMBER
	SOJA	W,GETNXT	;GO GET NEXT CHARACTER

DPDIG:	CAMLE	C,MAGIC		;WILL MULTIPLY AND ADD CAUSE OVERFLOW?
	AOJA	X,DIGRET	;YES
	IMULI	C,12		;MULTIPLY HIGH D.P. FRACTION BY 10
	MULI	D1,12		;MULTIPLY LOW D.P. FRACTION BY 10
	ADD	C,D1		;ADD HI PART OF LO PRODUCT INTO RESULT
	MOVE	D1,E		;GET LO PART OF LO PRODUCT
	TLO	D1,(1B0)	;STOP OVERFLOW IF CARRY INTO HI WORD
	ADD	D1,T1		;ADD DIGIT INTO FRACTION
	TLZN	D1,(1B0)	;SKIP IF NO CARRY INTO HI WORD
	ADDI	C,1		;PROPOGATE CARRY INTO HI WORD
DIGRET:	SOJA	W,GETNXT	;DECREMENT FIELD WIDTH AND GET NEXT CHAR

MAGIC:	<377777777777-9>/^D10	;LARGEST NUM PRIOR TO MULTIPLY AND ADD

DIGEXP:	HRROS	IO.INF		;SET INFO FOR EXPONENT FOUND
	IORI	F,EXPFL		;SET FLAG TO SAY WE'VE SEEN EXPONENT
	IMULI	XP,12		;MULTIPLY BY TEN
	ADD	XP,T1		;ADD IN NEXT DIGIT
	SOJA	W,GETNXT	;DECREMENT FIELD WIDTH AND GET NEXT CHAR


;[JLC]
;LAST DIGIT IS THE NEXT STATE NUMBER
;1ST 2 DIGITS ARE THE "ACTION" TO TAKE
;STATE 0 = NOTHING SIGNIFICANT READ YET
;STATE 1 = DIGIT OR SIGN SEEN
;STATE 2 = DECIMAL POINT SEEN
;STATE 3 = D OR E SEEN
;STATE 4 = SIGN SEEN AFTER DIGITS OR D OR E

;	 ? ,CR , . ,0-9,   ,D E, + , - ,
NXTSTA:	EXP
	000,050,022,031,050,000,051,061,
	000,011,022,031,041,053,054,074,
	000,012,120,102,042,053,054,074,
	000,013,120,114,043,000,054,074,
	000,014,120,114,044,000,120,120
	

;ERROR PROCESSING. IF A REAL ILLEGAL CHARACTER (E.G. ALPHA CHAR) IS
;FOUND DIRECTLY AFTER A NUMBER, IT IS ILLEGAL. IF THE "ILLEGAL FLAG" (ILLEG.)
;IS SET, WE JUST IGNORE THE REST OF THE INPUT AND SET THE RESULT
;TO 0.

ILLCH:
DELCK:	CAME	W,[-1]		;FIRST ILLEGAL CHAR IN FREE FORMAT
	JUMPL	W,ENDF		;NO - DELIMITER OF FREE FORMAT
	SKIPE	ILLEG.		;ILLEGAL CHAR. FLAG SET?
	JRST	ERROR1		;YES. THROW AWAY REST AND SET RESULT=0
	$ECALL	ILC,%ABORT	;"ILLEGAL CHARACTER IN DATA"
	POPJ	P,		;RETURN TO FOROTS

;[JLC]
;NULL IS A LEGAL CHARACTER, TREATED AS IF IT WERE A BLANK WITH
;BLANK='NULL' SPECIFIED.
NULLIN:	JUMPL	W,ENDF		;DONE IF FREE FORMAT
	SOJA	W,GETNXT	;OTHERWISE JUST SKIP IT

;THE STATE IS NOT DISTURBED BY BLANKS, THUS IF BZ IS ON (BLANK=ZERO)
;WE CAN MIMIC THE CODE AT GETNXT (MOVING THE STATE TO BITS 30-32) AND
;JUMP TO THE PLACE WHERE A DIGIT WOULD HAVE GONE.
BLNKIN:	SETZ	T1,		;SET TO NULL CHAR
	JUMPL	W,ENDF		;FREE FORMAT
	MOVE	P2,FLAGS(D)
	TXNN	P2,D%BZ		;BZ FORMAT ON?
	 SOJA	W,GETNXT	;NO. SKIP THE SPACE
	LSH	ST,-^D30	;YES. PUT STATE IN BITS 30-32
	JRST	GOT1		;AND USE IT

ERROR1:	SOJLE	W,ZERO		;HAVEN'T DECR WIDTH YET
	PUSHJ	P,%IBYTE	;THROW AWAY CHAR
	JRST	ERROR1		;KEEP GOING UNTIL DONE

ENDF:
ENDF1:	DMOVE	A,C		;MOVE 2-WORD RESULT TO BOTTOM AC'S
	TXNE	F,DOTFL		;HAS DECIMAL POINT BEEN INPUT?
	JRST	ENDF2		;YES
	LDB	D1,D.PNTR	;NO, GET DIGITS AFTER POINT FROM FORMAT
	SUB	X,D1		;  AND MODIFY DECIMAL EXPONENT
ENDF2:	HRRE	D1,SCL.SV	;GET SCALE FACTOR
	TXNN	F,EXPFL		;EXPONENT IN DATA?
	SUB	X,D1		;NO, ADD INTO EXPONENT
	SKIPE	%FLESG		;WAS D OR E EXPONENT NEGATIVE?
	 MOVNS	XP		;YES, SO NEGATE IT
	ADD	X,XP		;ADD EXPONENT FROM D OR E
NORM:	MOVEI	BXP,106		;INIT BINARY EXPON FOR D.P. INTEGER
	JUMPN	A,NORM1		;XFER IF AT LEAST ONE 1 IN HIGH HALF
	EXCH	A,B		;HIGH HALF ZERO, MOVE LOW HALF TO HIGH,
				;AND CLEAR LOW HALF
	SUBI	BXP,^D35	;AND ADJUST EXPONENT FOR 35 SHIFTS
NORM1:	JUMPE	A,ZERO		;LEAVE IF BOTH WORDS ZERO
	MOVE	D1,A		;COPY 1ST WORD
	JFFO	D1,NORM2	;FIND 1ST BIT
NORM2:	ASHC	A,-1(E)		;NORMALIZE D.P. INTEGER WITH BIN POINT
				;BETWEEN BITS 0 AND 1 IN HIGH WORD
	SUBI	BXP,-1(E)	;AND ADJUST EXPON TO ALLOW FOR SHIFTING
	JUMPE	X,ENDF6		;IF DECIMAL EXP=0, NO MUL BY 10 NEEDED
ENDF3:	CAILE	X,%HIMAX	;WITHIN ABSOLUTE G-FLOAT BOUNDS?
	 JRST	EXPTB		;NO. TOO BIG
	CAMGE	X,[-%HIMAX]
	 JRST	EXPTS		;NO. TOO SMALL
	PUSHJ	P,EETST		;GO TEST FOR BIG SCALING
	MOVM	D1,X		;GET MAGNITUDE OF DECIMAL EXPONENT
	CAILE	D1,%PTLEN	;BETWEEN 0 AND MAX. TABLE ENTRY?
	MOVEI	D1,%PTLEN	;NO, MAKE IT SO
	SKIPGE	X		;AND RESTORE CORRECT SIGN
	MOVNS	D1
	SUB	X,D1		;LEAVE ANY EXCESS EXPONENT IN X
DPMUL:	MUL	B,%HITEN(D1)	;LO FRAC TIMES HI POWER OF TEN(RESULT IN B,C)
	MOVE	E,B		;GET HI PART OF PREVIOUS PRODUCT OUT OF WAY
	MOVE	B,A		;COPY HI PART OF FRACTION
	MOVE	C,%LOTEN(D1)	;GET LOW POWER OF TEN
	ADDI	C,1		;BIAS IT - IT IS TRUNCATED
	MUL	B,C		;HI FRAC TIMES LO POWER OF TEN
	TLO	E,(1B0)
	ADD	E,B		;SUM OF HI PARTS OF CROSS PRODUCTS TO AC T
	MUL	A,%HITEN(D1)	;HI FRACTION TIMES HI POWER OF TEN
	TLON	E,(1B0)		;DID CARRY OCCUR?  ALLOW FOR NEXT CARRY
	ADDI	A,1		;CARRY FROM ADDING CROSS PRODUCTS
	ADD	B,E		;ADD CROSS PRODUCTS TO LO PART
				;  OF (HI FRAC TIMES HI POW TEN)
	TLZN	B,(1B0)
	AOJA	A,ENDF5		;AND PROPOGATE A CARRY, IF ANY
ENDF5:	TLNE	A,(1B1)		;NORMALIZED? 1.0 > RESULT >= 0.25
	JRST	ENDF5A		;YES, RESULT >= 0.5
	ASHC	A,1		;NO, SHIFT LEFT ONE PLACE
	SUBI	BXP,1		;AND ADJUST EXPONENT
ENDF5A:	MOVE	D1,%EXP10(D1)	;GET BINARY EXPONENT
	ADD	BXP,D1		;ADJUST BINARY EXPONENT
	JUMPN	X,ENDF3		;CONTINUE IF ANY MORE DEC EXP LEFT
ENDF6:	DMOVEM	A,%FLRFR	;SAVE THE RAW LEFT-JUSTIFIED FRACTION
	MOVEM	BXP,%FLRBX	;AND THE RAW BINARY EXPONENT
NOCVT:	POPJ	P,

ZERO:	DMOVEM	A,%FLRFR	;SAVE 0 IN RAW FRACTION
	SETZM	%FLRBX		;AND RAW FRACTION
	POPJ	P,

EXPTB:	HRLOI	A,377777	;RETURN HUGE RAW NUMBERS
	HRLOI	B,377777
	SKIPE	%FLFSG		;NEGATE IF NECESSARY
	 DMOVN	A,A
	DMOVEM	A,%FLRFR	;SAVE OVERFLOW AMOUNT
	MOVEI	A,2000		;RETURN LARGEST G-FLOAT EXPONENT
	SKIPE	%FLESG		;NEGATE IF NECESSARY
	 MOVN	A,A
	MOVEM	A,%FLRBX	;SAVE RAW EXPONENT
	POPJ	P,

EXPTS:	$ECALL	FUN		;GIVE FLOATING UNDERFLOW MESSAGE
	SETZM	%FLRFR		;RETURN ZERO
	SETZM	%FLRBX
	SETZM	%FLFSG		;WITH NO SIGNS
	POPJ	P,

%FLSPR:	MOVE	A,%FLRFR	;GET HIGH WORD OF RAW FRACTION
	JUMPE	A,SPZERO	;IF ZERO, DON'T PUT IN AN EXPONENT
	MOVE	XP,%FLRBX	;GET RAW BINARY EXPONENT
	TLO	A,(1B0)		;START ROUNDING (ALLOW FOR OVERFLOW)
	ADDI	A,200		;NO, ROUND IN HIGH WORD
	TRZ	A,377		;GET RID OF USELESS (UNUSED) BITS
	TLZE	A,(1B0)		;CARRY PROPOGATE TO BIT 0?
	JRST	SPRET		;NO
	ASHC	A,-1		;YES, RENORMALIZE TO RIGHT
	ADDI	XP,1		;AND ADJUST BINARY EXPONENT
	TLO	A,(1B1)		;AND TURN ON HI FRACTION BIT
SPRET:	CAIL	XP,200		;OUT OF RANGE
	 JRST	SEXPTB		;YES. TOO BIG
	CAMGE	XP,[-200]
	 JRST	SEXPTS		;YES. TOO SMALL
	ADDI	XP,200		;ADD IN EXCESS 200
	ASHC	A,-8		;NO, LEAVE ROOM FOR EXPONENT
	DPB	XP,[POINT 9,A,8] ;INSERT EXPONENT INTO HI WORD
CSRET:	SKIPGE	%FLFSG		;RESULT NEGATIVE?
	MOVN	A,A		;YES. SO NEGATE RESULT
SPZERO:	MOVEM	A,@IO.ADR	;STORE IN USER AREA
	POPJ	P,		;RETURN TO USER

SEXPTB:	$ECALL	FOV		;GIVE FLOATING OVERFLOW MSG
	HRLOI	A,377777	;SET NUMBER TO LARGEST POSSIBLE
	JRST	CSRET

SEXPTS:	$ECALL	FUN		;GIVE FLOATING UNDERFLOW MSG
	SETZ	A,		;RETURN ZERO
	JRST	CSRET

DEXPTB:	$ECALL	FOV		;GIVE FLOATING OVERFLOW MSG
	HRLOI	A,377777	;SET NUMBER TO LARGEST POSSIBLE
	HRLOI	B,377777
	JRST	CDRET

DEXPTS:	$ECALL	FUN		;GIVE FLOATING UNDERFLOW MSG
	SETZB	A,B		;IF NEGATIVE, SET TO ZERO
	JRST	CDRET
;IF RUNNING ON A KL, WE CAN USE THE SPARSE POWER
;OF TEN TABLE TO SCALE THE NUMBER. IT IS ABSOLUTELY NECESSARY
;FOR EXTENDED EXPONENT NUMBERS
EETST:	MOVM	P2,X		;GET MAGNITUDE OF DECIMAL EXPONENT
	CAIG	P2,%PTLEN	;WITHIN NORMAL RANGE?
	POPJ	P,		;YES. JUST DO IT NORMALLY
	ASHC	A,-1		;PREVENT DIVIDE CHECK
	ADDI	BXP,1		;AND MODIFY BINARY EXPONENT
	ASH	P2,1		;CALCULATE FACTOR OF TEN TO USE
	IDIVI	P2,^D21		;IN SPARSE TABLE
	SUBI	P2,2		;STARTS WITH 10**21
	IMULI	P2,3		;AND EACH ENTRY IS 3 LOCS
	JUMPL	X,EENEG		;GO DO DIVIDE IF EXP NEGATIVE
	PUSHJ	P,%EEMUL	;OR MULTIPLY IF POSITIVE
	SUBI	X,(XP)		;REDUCE THE DECIMAL EXP
	ADDI	BXP,(P3)	;AND ADD THE BINARY EXP FOUND
	POPJ	P,

EENEG:	PUSHJ	P,%EEDIV	;DO D.P. DIVIDE
	ADDI	X,(XP)		;REDUCE MAGNITUDE OF X
	SUBI	BXP,(P3)	;MODIFY BINARY EXPONENT
	POPJ	P,

;HERE FOR DOUBLE PRECISION ROUNDING

%FLDPR:	DMOVE	A,%FLRFR	;GET RAW FRACTION
	JUMPE	A,DPZERO	;IF ZERO, RETURN ZERO
	MOVE	XP,%FLRBX	;GET RAW BINARY EXPONENT
	TLO	A,(1B0)		;START ROUNDING (ALLOW FOR OVERFLOW)
	TLO	B,(1B0)		;START ROUNDING (ALLOW FOR CARRYS)
	ADDI	B,200	 	;LOW WORD ROUNDING FOR PDP-6 OR KI10
	TLZN	B,(1B0)		;DID CARRY PROPOGATE TO SIGN?
	 ADDI	A,1		;YES, ADD CARRY INTO HIGH WORD
	TLZE	A,(1B0)		;CARRY PROPOGATE TO BIT 0?
	 JRST	DPRET		;NO
	ASHC	A,-1		;YES, RENORMALIZE TO RIGHT
	ADDI	XP,1		;AND ADJUST BINARY EXPONENT
	TLO	A,(1B1)		;AND TURN ON HI FRACTION BIT
DPRET:	CAIL	XP,200		;OUT OF RANGE
	 JRST	DEXPTB
	CAMGE	XP,[-200]
	 JRST	DEXPTS		;YES. RETURN ZERO OR INFINITY
	ADDI	XP,200		;ADD IN EXCESS 200
	ASHC	A,-8		;NO, LEAVE ROOM FOR EXPONENT
	DPB	XP,[POINT 9,A,8] ;INSERT EXPONENT INTO HI WORD
CDRET:	SKIPGE	%FLFSG		;RESULT NEGATIVE?
	DMOVN	A,A		;YES. SO NEGATE RESULT
DPZERO:	DMOVEM	A,@IO.ADR	;STORE IN USER AREA
	POPJ	P,		;RETURN TO USER

%FLGPR:	DMOVE	A,%FLRFR	;GET RAW FRACTION
	JUMPE	A,GDZERO	;IF ZERO, RETURN ZERO
	MOVE	XP,%FLRBX	;GET RAW BINARY EXPONENT
	TLO	A,(1B0)		;START ROUNDING (ALLOW FOR OVERFLOW)
	TLO	B,(1B0)		;START ROUNDING (ALLOW FOR CARRYS)
	ADDI	B,2000		;YES. DO SPECIAL ROUNDING
	TLZN	B,(1B0)		;DID CARRY PROPOGATE TO SIGN?
	 ADDI	A,1		;YES, ADD CARRY INTO HIGH WORD
	TLZE	A,(1B0)		;CARRY PROPOGATE TO BIT 0?
	 JRST	GPRET		;NO
	ASHC	A,-1		;YES, RENORMALIZE TO RIGHT
	ADDI	XP,1		;AND ADJUST BINARY EXPONENT
	TLO	A,(1B1)		;AND TURN ON HI FRACTION BIT
GPRET:	CAIL	XP,2000		;OUT OF RANGE?
	 JRST	DEXPTB		;YES. TOO BIG
	CAMGE	XP,[-2000]
	 JRST	DEXPTS		;YES. TOO SMALL
	ADDI	XP,2000		;ADD IN EXCESS 2000
	ASHC	A,-^D11		;SHIFT TO MAKE ROOM FOR EXP
	DPB	XP,[POINT 12,A,11];DEPOSIT THE EXPONENT
	SKIPGE	%FLFSG		;RESULT NEGATIVE?
	DMOVN	A,A		;YES. SO NEGATE RESULT
GDZERO:	DMOVEM	A,@IO.ADR	;STORE IN USER AREA
	POPJ	P,		;RETURN TO USER

	PRGEND
	TITLE	FLOUT 	FLOATING POINT OUTPUT 
	SUBTTL	D. NIXON AND T. W. EGGERS
	SUBTTL	D. TODD /DMN/DRT/HPW/MD/JNG/CLRH/CYM	28-Oct-81
	SUBTTL	JLC - VERSION 6
	SEARCH	FORPRM



;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

	SEGMENT	CODE

	AC0==T0		;FLOATING POINT NO. ON ENTRY
	AC1==T1		;USED IN FORMING DIGITS
	AC2==T2		;DITTO. D.P. ONLY
	AC3==T3		;EXTENDED EXPONENT ONLY
	AC4==T4
	AC5==T5
	C==T4		;CNTR./NO. OF CHARS BEFORE DEC. POINT
	XP==T5		;DECIMAL EXPONENT
	SF==P4		;SCALE FACTOR
	DF==FREEAC	;FLOUT smashes FOROTS' free ac.


	NUMSGN==1	;NEGATIVE NUMBER
	DIGEXH==2	;DIGITS EXHAUSTED
	NOSIGN==4	;NO SPACE FOR + SIGN
	EQZER==10	;ITEM IS IDENTICALLY ZERO
	DPFLG==20	;VARIABLE IS DOUBLE PRECISION
	EEFLG==40	;VARIABLE IS EXTENDED EXPONENT DOUBLE PRECISION
	NOEFLG==100	;DO NOT PRINT "D" OR "E" IN EXPONENT
	NOPNT==200	;DO NOT PRINT THE DECIMAL POINT (FOR FTAST=0)

	LOCFLG==NUMSGN+DIGEXH+NOSIGN+EQZER+DPFLG+EEFLG+NOEFLG

	SPMAX==^D20
	DPMAX==^D20	;MAXIMUM NUMBER OF DIGITS TO PRINT
			;IF WE PRINT ANY MORE, WE WILL BE LYING TO THE
			;USER, AS THIS IS THE MAXIMUM PRECISION OF
			;OUR SCALING FACTORS OF 10.
			;WE CANNOT KNOW WHETHER THE NUMBER WE
			;HAVE IN THE MACHINE IS AN EXACT REPRESENTATION
			;OF WHATEVER WAS INPUT - WE MUST ASSUME THAT
			;WHAT IS IN THE MACHINE IS EXACTLY WHAT IS DESIRED.
			;THEREFORE THERE IS NO REASON NOT TO GIVE AS MANY
			;DIGITS AS ARE ACCURATE. THE ONLY LIMITATION ON
			;THIS CURRENTLY IS THE SCALING ALGORITHM.

	LZALWAYS==0	;SWITCH FOR ALWAYS PRINTING LEADING ZEROES
	LZSOME==1	;SWITCH FOR SOMETIMES - ALWAYS EXCEPT WHEN
			;POSITIVE NUMBER IS PRINTED WITH ONLY ONE LEADING
			;SPACE
	ENTRY	%FLOUT,%DOUBT,%GROUT,%EOUT
	ENTRY	%EEMUL,%EEDIV,%EENRM
	EXTERN	%OBYTE,%EXP10,%HITEN,%LOTEN,%PTLEN
	EXTERN	W.PNTR,D.PNTR,X.PNTR
	EXTERN	IO.ADR,IO.TYP,IO.INF,SCL.SV,%SAVE4,%FTAST,%FTSLB
	EXTERN	%SIZTB,%BEXP,%DEXP
;INSTEAD OF HAVING MANY GLOBAL FLAGS PASSED TO FLOUT, THERE ARE
;SEVERAL ENTRY POINTS WHICH SET FLAGS LOCAL TO THE ROUTINE.

%DOUBT:	TXZ	F,F%GTP+F%ETP		;NOT G OR E FORMAT
	TXO	F,F%DTP			;FLAG TO PRINT A "D"
	JRST	REALO

%GROUT:	TXZ	F,F%DTP+F%ETP		;TRY WITHOUT SCIENTIFIC NOTATION
	TXO	F,F%GTP
	JRST	REALO

%EOUT:	TXZ	F,F%GTP+F%DTP		;TURN OFF THE OTHER FLAGS
	TXO	F,F%ETP			;FLAG TO PRINT AN "E"
	JRST	REALO

%FLOUT:	TXZ	F,F%GTP+F%ETP+F%DTP
REALO:	PUSHJ	P,%SAVE4		;SAVE P1-P4
	MOVE	DF,FLAGS(D)	;DDB flags kept in DF throughout FLOUT.
	TXZ	F,LOCFLG	;CLEAR LOCAL FLAGS IN F
	MOVE	AC1,IO.TYP	;GET VARIABLE TYPE
	MOVE	AC2,%SIZTB(AC1)	;GET ENTRY SIZE
	CAIN	AC2,2		;IS VARIABLE DOUBLE PRECISION?
	TXO	F,DPFLG		;YES. SET FLAG
	CAIN	AC1,TP%DPX	;EXTENDED EXPONENT?
	TXO	F,EEFLG		;YES. SET FLAG
	MOVE	AC2,IO.ADR	;GET VARIABLE ADDR
	MOVE	AC0,(AC2)	;LOAD AC 0 WITH NUMBER
	SETZ	AC1,		;CLEAR LOW WORD
	TXNE	F,DPFLG		;DOUBLE PRECISION?
	MOVE	AC1,1(AC2)	;YES, GET LOW WORD ALSO
	TLZ	AC1,(1B0)	;ELIMINATE GARBAGE SIGN BIT
	TXZ	F,NUMSGN!DIGEXH!NOSIGN!EQZER
	SETZ	XP,		;CLEAR EXPONENT
	JUMPGE	AC0,FLOUT1	;NUMBER NEGATIVE?
	DMOVN	AC0,AC0		;YES. NEGATE IT
	TXO	F,NUMSGN	;AND - SET SIGN FLAG

;THE INTENTION IN THE CODE FOLLOWING IS TO LEFT-JUSTIFY THE MANTISSA
;AFTER EXTRACTING THE BINARY EXPONENT, AND THEN TO "SCALE" THE NUMBER
;BY ONE OR MORE POWERS OF TEN SO THAT IT ENDS UP WITH VALUE LESS
;THAN 1.0 BUT GREATER THAN OR EQUAL TO 0.1, KEEPING TRACK OF THE
;POWERS OF TEN USED IN THE SCALING PROCESS. THESE POWERS OF TEN
;ARE ACCUMULATED INTO A DECIMAL EXPONENT, KEPT IN XP.
;
;EXTENDED EXPONENT NUMBERS WHICH REQUIRE A HUGE POWER OF TEN TO SCALE
;THEM DOWN (OR UP) ARE FILTERED THROUGH A SPECIAL ROUTINE WHICH USES
;A SPARSE POWER OF TEN TABLE TO BRING THE NUMBER INTO THE "NORMAL"
;RANGE.

FLOUT1:	JUMPN	AC0,FLONZ	;OK IF NON-ZERO
	JUMPE	AC1,FLOUT6	;ZERO IF BOTH ZERO
FLONZ:
	TXNN	F,EEFLG		;EXTENDED EXPONENT?
	JRST	FLOU1A		;NO
	PUSHJ	P,EEDEC		;YES. HANDLE SEPARATELY
	JRST	FLOUT2

FLOU1A:	HLRZ	P1,AC0		;EXTRACT EXPONENT
	LSH	P1,-9
	HRREI	P1,-200(P1)	;EXTEND SIGN
	TLZ	AC0,777000	;GET RID OF HIGH EXP
FLOUT2:	ADDI	P1,^D8		;EXPONENT IS 8 BIGGER ON NORM
	MOVE	AC3,AC0		;GET THE HI FRACTION
	JFFO	AC3,FLOU2A	;GET HI BIT
	EXCH	AC0,AC1		;NONE. SWAP LO AND HI
	SUBI	P1,^D35		;AND DECR BINARY EXPONENT
	MOVE	AC3,AC0		;GET NEW HI WORD
	JFFO	AC3,FLOU2A	;GET HI BIT
	JRST	FLOUT6		;NUMBER IS ZERO
FLOU2A:	ASHC	AC0,-1(AC4)	;NORMALIZE NUMBER
	SUBI	P1,-1(AC4)	;AND MODIFY BINARY EXPONENT
FLOU2B:	MOVE	P2,P1		;GET BINARY EXPONENT
	IMULI	P2,232		;DEC EXP=LOG10(2)*BIN EXP=.232(OCTAL)*BIN EXP
	ADDI	P2,400		;ROUND TO NEAREST INTEGER
	ASH	P2,-^D9		;GET RID OF 3 OCTAL FRACTION DIGITS
				;THE ABOVE WORKS FOR NEGATIVE EXPONENTS BECAUSE
				;THE ASH EFFECTIVELY ADDS -1000 FOR NEGATIVE
				;VALUES

;P2 HOLDS A FIRST TRIAL DECIMAL EXPONENT. IT MAY BE
;ONE (BUT NO MORE) TOO SMALL TO DIVIDE THE BINARY NUM
;BY TO GET THE RANGE 1.0 .GT. NUM .GE. 0.1

	MOVM	P3,P2		;GET MAGNITUDE OF *10 SCALER
	CAIGE	P3,%PTLEN	;IS THE POWER OF 10 TABLE LARGE ENOUGH
	JRST	FLOUT3		;YES
	SKIPL	P2		;NO, SCALE 1ST BY LARGEST ENTRY
	SKIPA	P2,[%PTLEN]	;GET ADR OF LARGEST POSITIVE POWER OF 10
	MOVNI	P2,%PTLEN	;GET ADR OF LARGEST NEG POWER OF 10
	PUSHJ	P,DPMUL		;SCALE BY LARGE POWER OF 10
	JRST	FLOU2B		;AND GO DO THE SECOND SCALING
FLOUT3:	MOVE	P3,%EXP10(P2)	;GET BIN EXP THAT MATCHES DEC EXP
	CAMLE	P3,P1		;FRACTION .GT. POWER OF 10?
	JRST	FLOT4A		;YES
	CAME	P3,P1
	AOJA	P2,FLOT4A	;NOT IN EXPONENT
	CAMGE	AC0,%HITEN(P2)	;
	JRST	FLOT4A		;YES, IN HIGH FRACTION
	CAMN	AC0,%HITEN(P2)
	CAML	AC1,%LOTEN(P2)
	ADDI	P2,1		;NO, IN FRACTION PART
FLOT4A:	PUSHJ	P,DPMUL		;SCALE BY POWER OF 10
	ASHC	AC0,(P1)	;SCALE BY ANY REMAINING POWERS OF 2
	TLO	T1,(1B0)	;PREVENT OVERFLOW
	ADDI	T1,1		;ROUND IT UP SOME MORE
	TLZN	T1,(1B0)	;CARRY INTO SIGN?
	  ADDI	T0,1		;YES, PROPAGATE TO HIGH WORD
FLOUT6:	LDB	C,W.PNTR
	LDB	T3,D.PNTR
	HRRE	SF,SCL.SV	;GET THE SCALING FACTOR
	JUMPN	AC0,FLOU6A	;IS NUMBER ZERO?
	TXO	F,EQZER		;YES. SET FLAG
	TXZ	F,NUMSGN	;AND CLEAR ANY SIGN!
	SETZ	XP,		;AND THE EXPONENT!
FLOU6A:	JUMPN	C,FLOUT7
	TXNE	F,DPFLG		;DOUBLE PRECISION?
	ADDI	C,1		;YES, INCREMENT INDEX INTO TABLE
	HRRZ	T3,FRMTAB(C)	;PICKUP DEFAULT FORMAT FOR DECIMAL WIDTH
	HLRZ	C,FRMTAB(C)	;SAME FOR WIDTH

;HERE IS THE FIRST G-FORMAT NUMBER FILTER. THE NUMBER IS CHECKED
;IF IT IS "PROPER MAGNITUDE" FOR G-FORMAT. IF THE MAGNITUDE OF THE
;NUMBER IS SMALLER THAN 10**D OR GREATER THAN OR EQUAL TO 0.1,
;THE NUMBER SHOULD BE PRINTED IN F-FORMAT. SINCE THE NUMBER HAS NOT
;BEEN ROUNDED YET, WE CHECK THE NUMBER JUST USING THE DECIMAL EXPONENT XP,
;AND ALLOW NUMBERS WITH XP GREATER THAN -1 (WHICH COULD INCLUDE
;NUMBERS LESS THAN 0.1). A SECOND CHECK IS DONE AT CHKRND, AFTER
;THE NUMBER HAS BEEN ENCODED, TO SEE IF ROUNDING FORCED THE NUMBER
;INTO OR OUT OF THE F-FORMAT RANGE.
FLOUT7:	TXNN	F,F%GTP		;G TYPE CONVERSION?
	JRST	FLOUT8		;NO
	TXNE	F,EQZER		;NUMBER ZERO?
	 JRST	CETYP		;YES. ANSI STANDARD SAYS IT'S E-FORMAT!
	CAML	XP,[-1]		;IF EXPONENT .LT. 1
	CAMLE	XP,T3		;OR .GT. # DECIMAL PLACES
CETYP:	TXOA	F,F%ETP		;SET E CONVERSION
	JRST	FLOUT8		;NOT E, JUMP

;HERE WE FIGURE OUT HOW MANY SIGNIFICANT DIGITS TO GET FROM THE
;NUMBER.  FOR G-FORMAT, THIS IS JUST "D" (AS IN W.D). FOR D AND
;E-FORMATS, IT DEPENDS ON THE SCALE FACTOR. FOR SCALE FACTORS
;LESS THAN ZERO, THE NUMBER OF DIGITS IS REDUCED BY THE SCALE
;FACTOR. FOR POSITIVE SCALE FACTORS, THE NUMBER OF DIGITS IS
;INCREASED BY ONE, UNLESS THE SCALE FACTOR IS MORE
;THAN ONE LARGER THAN THE NUMBER OF DECIMAL PLACES, IN WHICH
;CASE THE NUMBER OF DIGITS IS SET TO THE SCALE FACTOR ALONE.
;FOR F-FORMAT, THE SIZE OF THE NUMBER (DECIMAL EXPONENT) IS
;ADDED TO THE NUMBER OF DIGITS IN ADDITION TO THE SCALE
;FACTOR.
FLOUT8:	MOVE	P2,T3		;GET # DECIMAL PLACES
	TXNN	F,F%ETP!F%DTP	;D OR E FORMAT?
	JRST	FLOU8A		;NO
	JUMPLE	SF,FLOUT9	;IF NEG, JUST GO ADD SCLFCT
	CAILE	SF,1(T3)	;WITHIN DEFINED RANGE?
	MOVEI	P2,-1(SF)	;NO. SET TO SCLFCT
	ADDI	P2,1		;YES. JUST ADD 1
	JRST	FLOU10
FLOU8A:	TXNE	F,F%GTP		;G-FORMAT?
	JRST	FLOU10		;YES. WE'RE ALL DONE
	ADD	P2,XP		;NO. ADD MAGNITUDE OF NUMBER
FLOUT9:	ADD	P2,SF		;ADD SCLFCT TO # DIGITS DESIRED
FLOU10:	JUMPN	AC0,FLO10A	;IF NUMBER IS ZERO
	SETZ	P2,		;DON'T ENCODE ANY DIGITS
FLO10A:	CAILE	P2,DPMAX	;TOO MANY DECIMAL PLACES
	 MOVEI	P2,DPMAX	;YES, REDUCE TO MAX POSSIBLE
	TXNE	F,DPFLG		;DOUBLE PRECISION?
	 JRST	DIGOK		;YES
	CAILE	P2,SPMAX	;NO. RESTRICT TO SPMAX
	 MOVEI	P2,SPMAX
DIGOK:	MOVE	P1,P		;MARK BOTTOM OF DIGIT STACK
	PUSH	P,[0]		;AND ALLOW FOR POSSIBLE OVERFLOW
	SETZM	IO.INF		;CLEAR 9'S COUNTER
	MOVE	P3,P2		;GET # OF DIGITS
	JUMPLE	P2,CHKRND	;NO DIGITS WANTED.
FLOU12:	EXCH	AC0,AC1		;PUT HI WORD IN AC1
	MULI	AC1,^D10	;MUL HI WORD BY 10
	PUSH	P,AC1		;STORE DIGIT ON STACK
	MULI	AC0,^D10	;MUL LOW WORD BY 10
	TLO	AC0,(1B0)	;STOP OVERFLOW
	ADD	AC0,AC2		;ADD HI WORD BACK INTO AC0
	TLZN	AC0,(1B0)	;CARRY
	AOS	(P)		;YES, INCREMENT DIGIT ON STACK
	MOVE	AC2,(P)		;GET THE DIGIT
	CAIN	AC2,^D9		;IS IT A 9?
	AOSA	IO.INF		;YES. INCR 9'S COUNT
	SETZM	IO.INF		;NO. CLEAR 9'S COUNT
	SOJG	P3,FLOU12

;FOR G-FORMAT OUTPUT, THERE IS THE POSSIBILITY THAT ROUNDING THE
;NUMBER WILL MAKE IT TOO LARGE TO PRINT IN F-FORMAT, OR THAT NUMBERS
;THAT WE LET THROUGH AT FLOUT7 WILL NOT BE ROUNDED UP, AND WILL BE
;TOO SMALL TO PRINT IN F-FORMAT. THE FOLLOWING CODE CHECKS FOR
;THESE CONDITIONS, AND SETS THE E-FORMAT FLAG IF THE NUMBER IS TOO
;LARGE OR TOO SMALL. IF THERE IS A SCALE FACTOR INVOLVED, IT MODIFIES
;THE NUMBER OF DIGITS ENCODED - NEGATIVE SCALE FACTORS REDUCE THE
;NUMBER OF DIGITS ENCODED, WHILE POSITIVE SCALE FACTORS INCREASE THE
;NUMBER OF DIGITS ENCODED BY 1 DIGIT (OR IF THE SCALE FACTOR
;IS OUTSIDE THE DEFINED RANGE, MODIFIES THE NUMBER OF DIGITS ENCODED
;TO THE SCALE FACTOR).
CHKRND:	TXNE	F,F%GTP		;G-FORMAT?
	TXNE	F,F%ETP+F%DTP	;YES. D OR E?
	JRST	CHKRN2		;D OR E OR NOT G. LEAVE
	TLNE	AC0,(1B1)	;ROUNDING BIT ON?
	JRST	TEST9		;YES. TEST # 9'S
	JUMPL	XP,FGFIX	;NO. NG IF EXP STILL LOW
	JRST	FLOU13		;OTHERWISE OK
TEST9:	CAMN	P2,IO.INF	;IS 9'S COUNT SAME AS DIGITS?
	JRST	TESTXP		;YES. WE GOT OVERFLOW
	JUMPL	XP,FGFIX	;NO. NG IF EXPONENT STILL LOW
	JRST	DORND		;OTHERWISE WE'RE OK
TESTXP:	CAMGE	XP,T3		;IS UNINCREMENTED EXP TOO BIG?
	JRST	DORND		;NO. WE'RE OK

FGFIX:	TXO	F,F%ETP		;SET TO TYPE "E"
	JUMPE	SF,CHKRN2	;NO # DIGITS CHANGE IF SF=0
	JUMPG	SF,FGPOS	;NEED MORE IF SF.GT.0
	MOVM	AC2,SF		;GET MAGNITUDE OF SCLFCT
	CAMLE	AC2,P2		;.LE. # OF DIGITS?
	JRST	FLOU13		;NO. WE'RE ROUNDING ON ZEROES
	ADD	P,SF		;NEED LESS IF SF.LT.0
	ADD	P2,SF		;ADJUST # DIGITS
	ADDM	SF,IO.INF	;AND 9'S COUNTER
	SKIPGE	IO.INF		;IF 9'S COUNT IS NOW .LT. 0
	JRST	FLOU13		;WE HAVE NO ROUNDING
	JRST	DORND		;NOW ROUND WITH FEWER DIGITS

FGPOS:	MOVEI	P3,(SF)		;ENCODE MORE DIGITS
	SUBI	P3,(P2)		;EITHER 1 OR (SF-P2)
	CAIG	SF,1(T3)	;WITHIN DEFINED RANGE?
	MOVEI	P3,1		;YES. JUST ADD 1
	ADDI	P2,(P3)		;INCREASE RECORDED # DIGITS
	JRST	FLOU12		;GO ENCODE

CHKRN2:	TLNN	AC0,(1B1)	;ROUNDING BIT ON?
	JRST	FLOU13		;NO
DORND:	MOVEI	AC2,(P)		;GET STACK POINTER
	MOVE	AC1,IO.INF	;GET 9'S COUNT
	JUMPLE	AC1,FLO12B	;INCR LAST DIG IF NO 9'S
ZERLP:	SETZM	(AC2)		;MAKE DIGIT ZERO
	SUBI	AC2,1		;DECR POINTER
	SOJG	AC1,ZERLP	;DO FOR ALL CONSECUTIVE 9'S
FLO12B:	AOS	(AC2)		;INCR NEXT DIGIT

FLOU13:	MOVEI	P3,2(P1)	;GET BASE OF STACKED DIGITS
	SKIPN	1(P1)		;DID OVERFLOW OCCUR?
	JRST	FLOU14		;NO
	SUBI	P3,1		;YES - MOVE BACK BASE POINTER
	ADDI	XP,1		;INCREMENT EXPONENT
	ADDI	P2,1		;ADD 1 TO # DIGITS

FLOU14:	JUMPG	P2,FLO14A	;ANY DIGITS?
	TXZ	F,NUMSGN	;NO. CLEAR ANY SIGN
FLO14A:	TXNE	F,F%GTP		;YET ANOTHER G-FORMAT TEST
	TXNE	F,F%ETP+F%DTP
	JRST	FLOU15		;E OR D OR NOT G
	SETZ	SF,		;SCLFCT IS USELESS NOW FOR G-FORMAT

FLOU15:	SUBI	C,2(T3)		;SIGN, POINT AND CHARS. FOLLOWING
	TXNE	F,F%ETP!F%DTP
	JRST	FLOU16

;HERE FOR F TYPE CONVERSION
	TXNE	F,EQZER		;IS NUMBER ZERO?
	SETZ	SF,		;YES. SET SCALE FACTOR TO 0
	ADD	SF,XP		;COUNT THE LEADING DIGITS
	TXNE	F,F%GTP
	JRST	[SUBI	T3,(XP)		;NO, REDUCE CHAR. AFTER POINT FOR F
		JRST	CHEKDE]		;BUT IGNORE SCALE FACTOR IN WIDTH
	JUMPLE	SF,TRYFIT	;IGNORE NEG SCALING
	SUBI	C,(SF)		;+SCALING
	JRST	TRYFIT
;HERE FOR E AND D TYPE CONVERSION
FLOU16:	JUMPLE	SF,CHEKDE	;IF FACTOR .LE. 0, GO CHECK EXP
	SUBI	C,1		;EXTRA DIGIT PRINTED
	SUBI	T3,-1(SF)	;REDUCE DIGITS AFTER POINT
	JUMPGE	T3,CHEKDE	;TO COMPENSATE FOR THOSE IN FRONT
	ADD	C,T3		;HOWEVER IF NOT ENOUGH LEFT
				;TAKE FROM IN FRONT
CHEKDE:	LDB	AC2,X.PNTR	;GET EXPONENT WIDTH
	JUMPN	AC2,GOTEXW	;MIGHT BE DEFAULT
	MOVEI	AC2,2		;WHICH IS 2
GOTEXW:	MOVEM	AC2,IO.INF	;SAVE FOR LATER
	TXNE	F,F%DTP+F%ETP	;D OR E FORMAT?
	CAIL	AC2,3		;YES. ROOM FOR LARGEST EXPONENT?
	JRST	EXPOK		;SURE
	MOVE	AC1,XP		;GET EXPONENT
	SUB	AC1,SF		;REDUCE BY SCALE FACTOR
	MOVM	AC1,AC1		;GET MAGNITUDE
	CAML	AC1,EXPTAB(AC2)	;WILL EXPONENT FIT?
	TXO	F,NOEFLG	;MAYBE JUST BARELY WITH NO "D" OR "E"
	CAML	AC1,EXPTAB+1(AC2);WILL IT FIT AT ALL?
	JRST	NOFIT		;NO
EXPOK:	SUB	C,IO.INF	;REDUCE SPACE FOR NUMBER
	SUBI	C,2		;ALLOW FOR E+ OR + AND 1ST DIGIT OF EXP
TRYFIT:	JUMPG	C,FIT1		;WILL IT FIT?
	JUMPL	C,TRYF0		;NO. SERIOUS IF .LT. 0
	JUMPG	SF,GO2ERF	;C=0, OK IF DIGITS BEFORE POINT
IFN LZALWAYS,<
	TXNN	F,NUMSGN	;IS SIGN POSITIVE?
	AOJA	C,POSIGN	;YES. ELIMINATE IT FOR LEADING ZERO>
	JUMPG	T3,GO2ERF	;NO. BUT WE'RE OK IF DIGITS AFTER POINT
TRYF0:	TXNE	F,NUMSGN	;NO. IS SIGN POSITIVE
	JRST	TRYF2		;NO.
	JUMPG	T3,TRYF1	;YES. ANY DIGITS AFTER POINT?
	JUMPG	SF,TRYF1	;NO. ANY DIGITS BEFORE POINT?
	JUMPL	C,TRYF2		;NO. MUST BE ROOM FOR LEADING 0
TRYF1:	CAML	C,[-1]		;YES. WOULD THERE BE ROOM WITHOUT SIGN?
	AOJA	C,POSIGN	;YES. PRINT WITHOUT SIGN
TRYF2:	TXNN	F,F%ETP!F%DTP	;NO. IF E FORMAT WE LOSE
	TXZN	F,F%GTP		;WAS IT G TO F CONVERSION?
	JRST	NOFIT		;E TYPE OR NOT G TO F
	ADDI	C,2		;REMOVE THE "E+" TRAILING SPACES
	ADD	C,IO.INF	;ADD THE EXPONENT WIDTH BACK
	JRST	TRYFIT		;AND TRY AGAIN
NOFIT:	LDB	AC2,W.PNTR	;GET THE WIDTH
	JUMPE	AC2,FIT		;ALWAYS FITS IF FREE FORMAT

	SKIPN	%FTAST		;ASTERISKS FOR OVERFLOW?
	 JRST	FNOAST		;NO. PRINT PART OF NUMBER INSTEAD
	MOVE	P,P1		;RESTORE STACK POINTER
	MOVEI	T1,"*"		;OUTPUT ASTERISKS
	PUSHJ	P,%OBYTE
	SOJG	AC2,.-1

	$ECALL	FTS,FLORET	;ISSUE ERROR MSG, CALL SUBR IF DESIRED


FNOAST:	TXNE	F,NUMSGN	;NEGATIVE?
	 JRST	NOFIT1		;YES. CAN'T REMOVE SIGN
	ADDI	C,1		;NO. REMOVE SIGN
	TXO	F,NOSIGN	;AND PRINT NO SIGN LOC
NOFIT1:	ADD	T3,C		;REDUCE # DIGITS AFTER DEC POINT
	JUMPGE	T3,FIT		;IF WE HAVE NEGATIVE
	TXO	F,NOPNT		;OUTPUT NO DECIMAL POINT
	AOJGE	T3,FIT		;IF WE STILL HAVE NEGATIVE
	ADD	SF,T3		;REDUCE THE DIGITS BEFORE DEC PNT

FIT:	JUMPLE	C,GO2ERF	;NO LEADING BLANKS
FIT1:	JUMPG	SF,FIT2		;NO 2ND CHECK IF DIGITS BEFORE POINT
	CAIG	C,1		;MUST LEAVE ROOM FOR LEADING 0
	JRST	GO2ERF
FIT2:	PUSHJ	P,SPACE		;OUTPUT SPACE
	SOJA	C,FIT		;UNTIL ENOUGH

POSIGN:	TXO	F,NOSIGN	;SIGNAL ROOM FOR LEADING ZERO
				; AND NO ROOM FOR + SIGN
GO2ERF:	TXNN	F,F%ETP!F%DTP	;TEST FLOATING POINT FLAGS
	JRST	FFORM		;NO, USE FIXED POINT
				;FALL INTO EFORM
;E FORMAT

EFORM:	SUB	XP,SF		;SCALE EXPONENT
	JUMPG	P2,EFORMA	;ANY SIGNIFICANT DIGITS?
	SETZ	XP,		;NO. CLEAR THE EXPONENT
EFORMA:	JUMPLE	SF,EFORM1	;JUMP IF NOT POSITIVE SCALING
	PUSHJ	P,SIGN		;OUTPUT SIGN
EFORMB:	PUSHJ	P,DIGIT		;OUTPUT LEADING DIGITS
	SOJG	SF,EFORMB	;RETURN FOR MORE
	PUSHJ	P,PERIOD	;OUTPUT DOT
	JUMPLE	T3,EFORM4	;NO MORE IF NO DEC
EFORMC:	PUSHJ	P,DIGIT		;OUTPUT ANOTHER DIGIT
	SOJG	T3,EFORMC	;UNTIL DECS USED UP
	JRST	EFORM4		;GO OUTPUT EXPONENT

EFORM1:	PUSHJ	P,SIGN		;OUTPUT SIGN
IFN LZALWAYS!LZSOME,<
	JUMPLE	C,EFORM2	;IF ROOM, OUTPUT LEADING 0>
IFE LZALWAYS!LZSOME,<
	JUMPG	T3,EFORM2	;OR IF NO TRAILING DIGITS>
	PUSHJ	P,ZERO		;OUTPUT ZERO
EFORM2:	PUSHJ	P,PERIOD	;AND DECIMAL POINT
	JUMPLE	T3,EFORM4	;GO TO EXPONENT IF NO DIGITS
	JUMPE	SF,EFORM3	;ACCOUNT FOR ZERO SCALING
	MOVM	SF,SF		;GET MAGNITUDE
	CAIGE	SF,(T3)		;SCLFCT .GE. # DECS?
	JRST	EFRM2A		;NO. THINGS ARE OK
	CAIE	SF,(T3)		;EQUAL?
	MOVEI	SF,1(T3)	;GREATER. SET SF=D
	SUBI	SF,1		;EQUAL. SET SF=D-1
EFRM2A:	SUBI	T3,(SF)		;REDUCE # SIGNIFICANT DIGITS
EFRM2B:	PUSHJ	P,ZERO		;OUTPUT LEADING ZEROES
	SOJG	SF,EFRM2B
EFORM3:	JUMPLE	T3,EFORM4	;LEAVE IF NO DIGITS AFTER POINT
EFRM3A:	PUSHJ	P,DIGIT		;OUTPUT FRACTIONAL DIGIT
	SOJG	T3,EFRM3A	;RETURN IF MORE DIGITS

EFORM4:	MOVEI	AC1,"E"
	TXNE	F,F%DTP		;USER SPECIFY D-FORMAT?
	MOVEI	AC1,"D"		;YES, GIVE D INSTEAD
	TXNN	F,NOEFLG	;DON'T PRINT IF NO ROOM
	PUSHJ	P,%OBYTE	;OUTPUT "E" OR "D"
	JUMPGE	XP,EFORM5
	TXO	F,NUMSGN	;TYPE MINUS IF EXPONENT NEGATIVE
EFORM5:	PUSHJ	P,PLUS		;PRINT SIGN
	MOVE	C,IO.INF	;AND SET DIGIT COUNT
	TXNE	F,NOEFLG	;DID WE PRINT "D" OR "E"?
	ADDI	C,1		;NO. MORE ROOM FOR EXPONENT
	MOVE	P,P1		;RESTORE STACK POINTER
	MOVM	AC0,XP		;GET EXPONENT
	JRST	OUTP1		;AND LET OUTP1 DO THE WORK
;F FORMAT

FFORM:	JUMPLE	SF,FFORM3	;NO LEADING DIGITS
	PUSHJ	P,SIGN		;OUTPUT SIGN
FFORMA:	PUSHJ	P,DIGIT		;OUTPUT INTEGRAL DIGIT
	SOJG	SF,FFORMA	;RETURN IF MORE DIGITS
	PUSHJ	P,PERIOD	;PRINT DECIMAL POINT

FFORM1:	JUMPLE	T3,FFORM2	;TEST FOR DIG AFTER POINT
	PUSHJ	P,DIGIT		;OUTPUT FRACTIONAL DIGIT
	SOJG	T3,FFORM1	;RETURN IF MORE DIGITS

FFORM2:	MOVE	P,P1		;RESTORE STACK
	TXNN	F,F%GTP		;G FORMAT REQUIRES 4 BLANKS
	JRST	FLORET		;FINISHED
	LDB	C,X.PNTR	;GET EXPONENT WIDTH
	CAIN	C,0		;IF SET
	  MOVEI	C,2		;IF NOT, DEFAULT IS 4 (2+2)
	ADDI	C,2		;PLUS 2 FOR E+ OR E-
FFRM2A:	PUSHJ	P,SPACE		;BLANKS
	SOJG	C,FFRM2A
	JRST	FLORET		;FINISHED

FFORM3:	PUSHJ	P,SIGN		;OUTPUT SIGN
IFN LZALWAYS!LZSOME,<
	JUMPLE	C,NOLZ		;AND IF WE CAN,>
IFE LZALWAYS!LZSOME,<
	JUMPG	T3,NOLZ		;OR IF NO TRAILING DIGITS>
	PUSHJ	P,ZERO		;OUTPUT LEADING "0"
NOLZ:	PUSHJ	P,PERIOD	;OUTPUT DEC. POINT
	ADD	T3,SF		;REDUCE DEC BY SCLFCT
	JUMPGE	T3,FFRM3C	;FINISH IF OK
	SUB	T3,SF		;RESTORE D
	MOVN	SF,T3		;USE FOR SCLFCT
	SETZ	T3,		;AND NO DIGITS
FFRM3C:	JUMPGE	SF,FFORM1	;NOW FOR DIGITS
	PUSHJ	P,ZERO		;ZERO AFTER POINT
	AOJA	SF,FFRM3C	;LOOP ON ZEROS

;EXTENDED EXPONENT NUMBERS HAVE 3 MORE BITS OF EXPONENT,
;SO WE MOVE THE MANTISSA OVER TO WHERE IT WOULD BE WERE IT
;A NORMAL FLOATING POINT NUMBER. IF THE EXPONENT IS WITHIN THE NORMAL
;FLOATING POINT RANGE, WE JUST DROP INTO THE STANDARD CODE. IF NOT,
;WE USE A SPARSE POWER OF TEN TABLE TO SCALE THE MANTISSA
;AND LOWER THE MAGNITUDE OF THE BINARY EXPONENT. THE TABLE IS ARRANGED
;SO THAT EACH POWER OF TEN WILL SCALE 2**35 MORE THAN THE NEXT,
;SO WE JUST DIVIDE THE BINARY EXPONENT BY 35 TO GET THE TABLE ENTRY
;TO USE.
;WE LEAVE THE MANTISSA ALIGNED WITH BIT 9 TO AVOID DIVIDE CHECKS. WE
;DON'T LOSE ANY PRECISION THEREBY BECAUSE FOR BOTH MULTIPLICATION
;AND DIVISION WE GET A 4-WORD RESULT. AFTER THE SCALING OPERATION,
;WE HAVE TO ALIGN THE MANTISSA ON BIT 1. THIS TIME,
;HOWEVER, IT MIGHT START ANYWHERE, SO WE CALL %EENRM.
EEDEC:	LDB	P1,[POINT 12,AC0,11];GET THE EXPONENT
	TLZ	AC0,777700	;AND WIPE IT OUT IN MANTISSA
	ASHC	AC0,3		;MAKE IT LOOK NORMAL
	HRREI	P1,-2000(P1)	;EXTEND SIGN OF EXPONENT
	MOVM	P2,P1		;GET MAGNITUDE OF EXP
	CAIGE	P2,200		;OUT OF RANGE?
	POPJ	P,		;NO. USE REGULAR CODE
	SUBI	P2,^D70		;MODIFY FOR SPARSE 10'S TABLE
	IDIVI	P2,^D35		;DERIVE INDEX FOR EXPONENT
	IMULI	P2,3		;GET PROPER INDEX
	JUMPL	P1,EENEG	;GO DO MUL IF NEGATIVE
	PUSHJ	P,%EEDIV	;AND DIVIDE IF POSITIVE
	SUBI	P1,(P3)		;REDUCE THE BINARY EXPONENT
	POPJ	P,

EENEG:	PUSHJ	P,%EEMUL	;DO D.P. MULT
	MOVNI	XP,(XP)		;RECORD NEGATIVE DECIMAL EXPONENT
	ADDI	P1,(P3)		;REDUCE MAGNITUDE OF BINARY EXP
	POPJ	P,

%EEDIV:	SETZB	AC2,AC3		;CLEAR LOWER AC'S
	SETZB	AC4,AC5		;AND EVEN LOWER AC'S
	DDIV	AC0,%BEXP(P2)	;GET 2-WORD RESULT
	DDIV	AC2,%BEXP(P2)	;GET 4-WORD RESULT
	JRST	EECOM		;JOIN COMMON CODE

%EEMUL:	DMOVE	AC2,%BEXP(P2)	;GET POWER OF TEN
	ADDI	AC3,1		;BIAS IT - IT IS TRUNCATED
	DMUL	AC0,AC2		;GET 4-WORD RESULT
EECOM:	PUSHJ	P,%EENRM	;NORMALIZE IT
	TLO	AC0,(1B0)	;PREPARE FOR OVERFLOW
	TLNE	AC2,(1B1)	;ROUNDING BIT ON?
	DADD	AC0,[EXP 0,1]	;YES. ROUND UP
	TLZ	AC1,(1B0)	;TURN OFF LOW SIGN
	TLZE	AC0,(1B0)	;DID WE OVERFLOW?
	JRST	EEOK		;NO
	TLO	AC0,(1B1)	;YES. TURN HIGH BIT ON
	ADDI	P1,1		;AND INCR THE BINARY EXP
EEOK:	HLRZ	P3,%DEXP(P2)	;GET THE BINARY EXPONENT
	HRRZ	XP,%DEXP(P2)	;GET DECIMAL EXPONENT
	POPJ	P,

%EENRM:	MOVE	T4,AC0		;GET THE HIGH WORD
	JFFO	T4,EENZ		;LOOK FOR 1ST 1
	DMOVE	AC0,AC1		;SHOVE THE NUMBER OVER
	SUBI	P1,^D35		;AND MODIFY THE EXPONENT
	MOVE	T4,AC0		;TRY NEXT WORD
	JFFO	T4,EENZ
	JRST	EENEND		;STILL NONE
EENZ:	SOJE	T5,EENEND	;LEAVE STARTING AT BIT 1, DONE IF NO SHIFT
	SUB	P1,T5		;MODIFY THE BINARY EXPONENT
	MOVN	T4,T5		;AND GET NEG SHIFT ALSO
	JUMPL	T5,RGTSFT	;DIFFERENT FOR RIGHT SHIFT
	ASHC	AC0,(T5)	;MOVE 1ST AND 2ND WORDS
	ASH	AC1,(T4)	;MOVE BACK 2ND WORD
	ASHC	AC1,(T5)	;MOVE 2ND AND 3RD WORD
EENEND:	POPJ	P,

RGTSFT:	ASHC	AC1,(T5)	;MOVE 2ND AND 3RD
	ASH	AC1,(T4)	;MOVE 2ND BACK
	ASHC	AC0,(T5)	;MOVE 1ST AND 2ND
	POPJ	P,

		;SCALE DOUBLE FRACTION BY A POWER OF 10
DPMUL:	JUMPE	P2,CPOPJ	;IF DEC EXP IS 0, RETURN
	ADD	XP,P2		;PUT DEC SCALE FACTOR INTO XP
	MOVN	P2,P2		;TAKE RECIPROCAL OF EXPONENT
	MOVE	P3,%EXP10(P2)	;GET CORRESPONDING BIN EXP
	ADD	P1,P3		;ADD POWER EXP INTO FRAC EXP

	MOVE	AC2,%HITEN(P2)	;GET DOUBLE SCALING FACTOR
	MOVE	AC3,%LOTEN(P2)
	ADDI	AC3,1		;BIAS IT - IT IS TRUNCATED
	DMUL	AC0,AC2		;GET DP PRODUCT
	TLO	AC1,(1B0)	;PREPARE FOR CARRY
	TLNE	AC2,(1B1)	;ROUNDING BIT ON?
	ADDI	AC1,1		;YES. ADD 1 TO LOW WORD

	TLZN	AC1,(1B0)	;OVERFLOW
	ADDI	AC0,1		;YES
	TLNE	AC0,(1B1)	;NORMALIZED?
	POPJ	P,		;YES
	ASHC	AC0,1		;NO, SHIFT LEFT ONE
	SUBI	P1,1		;AND ADJUST EXPONENT
CPOPJ:	POPJ	P,		;RETURN

; OUTPUT ROUTINES

PERIOD:	TXNE	F,NOPNT		;SUPPRESS DEC PNT?
	 POPJ	P,		;YES. JUST LEAVE
	MOVEI	AC1,"."		;DECIMAL POINT
	PJRST	%OBYTE		;PRINT AND RETURN

SPACE:	SKIPE	%FTSLB		;SUPPRESS LEADING BLANKS?
	 POPJ	P,		;YES. LEAVE
	MOVEI	AC1," "		;SPACE
	PJRST	%OBYTE

ZERO:	MOVEI	AC1,"0"
	JRST	%OBYTE

PLUS:	MOVEI	AC1,"+"
	JRST	SIGN1
SIGN:	TXZE	F,NOSIGN	;NO ROOM FOR SIGN?
	POPJ	P,		;JUST RETURN
	MOVEI	AC1," "
	TXNE	DF,D%SP		;FORCE PLUS SIGN?
	 MOVEI	AC1,"+"		;YES

SIGN1:	TXZE	F,NUMSGN	;ALWAYS CLEAR FLAG
	 MOVEI	AC1,"-"		;SELECT SIGN
	CAIN	AC1," "		;IS IT A SPACE?
	 SKIPN	%FTSLB		;YES. SUPPRESS LEADING BLANK?
	  PJRST	%OBYTE		;NO. PRINT
	POPJ	P,

DIGIT:	JUMPLE	P2,ZERO		;OUTPUT ZERO IF NO DIGITS
	SUBI	P2,1		;DECR # DIGITS LEFT
	MOVE	AC1,(P3)	;GET NEXT DIGIT
	ADDI	AC1,"0"		;CONVERT TO ASCII
	AOJA	P3,%OBYTE	;AND PRINT

OUTP1:	MOVEI	XP,1		;SET UP DIGIT COUNT

OUTP2:	IDIVI	AC0,^D10	;AND GENERATE DIGITS IN REVERSE
	PUSH	P,AC1		;AND SAVE THEM ON THE STACK
	JUMPE	AC0,OUTP3	;ANY LEFT?
	AOJA	XP,OUTP2	;YES - COUNT AND CARRY ON

OUTP3:	CAML	XP,C		;ANY LEADING SPACES?
	JRST	OUTP4		;NO
	PUSHJ	P,ZERO		;YES - PRINT ONE
	SOJA	C,OUTP3		;AND DECREASE UNTIL FINISHED

OUTP4:	POP	P,AC1		;POP UP DIGIT
	ADDI	AC1,"0"		;ADD ASCII OFFSET
	PUSHJ	P,%OBYTE	;AND PRINT IT
	SOJN	XP,OUTP4	;REPEAT UNTIL FINISHED
FLORET:
	POPJ	P,		; EXIT FROM ROUTINE

FRMTAB:	^D15,,7			;15.7 DEFAULT
	^D25,,^D17		;25.17 DEFAULT

EXPTAB:	1	;10**0
	^D10	;10**1
	^D100	;10**2
	^D1000	;10**3

	PRGEND
	TITLE	INTEG	DECIMAL INTEGER INPUT/OUTPUT 
	SUBTTL	D. TODD/DRT/HPW/MD	28-Oct-81
	SEARCH	FORPRM




;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

;FROM LIB40 %4(367)

	SEGMENT	CODE

	ENTRY	%INTI,%INTO,%GINTI,%GINTO
	EXTERN	%IBYTE,%OBYTE,W.PNTR,D.PNTR
	EXTERN	IO.ADR,%SAVE1,%FTAST,%FTSLB
	EXTERN	%SKIP
	EXTERN	%ABORT


DGSEEN==400000,,0		;MUST BE 400000, CHECKED WITH JUMPL
SGNFLG==200000,,0		;MINUS SIGN SEEN
OVRFLG==100000,,0		;INTEGER OVERFLOW
%GINTI:
%INTI:	PUSHJ	P,%SAVE1	;SAVE P1
	PUSHJ	P,INTSET	;DO SETUP
	JUMPG	T3,INTI1	;FIELD WIDTH SPECIFIED
	SETO	T3,		;SET VARIABLE FIELD FLAG
	PUSHJ	P,%SKIP		;SKIP SPACES
	  JRST	INTI6		;COMMA OR EOL (NULL FIELD)
	JRST	INTI1B		;PROCESS FIELD
INTI1:	JUMPE	T3,INTI6	;FIELD EXHAUSTED
	PUSHJ	P,%IBYTE	;NO, GET NEXT INPUT CHARACTER
INTI1B:	CAIG	T1,"9"		;CHECK FOR A
	 CAIGE	T1,"0"		;DECIMAL DIGIT (0-9)
	  JRST	INTI3		;NOT A DECIMAL DIGIT
	TXO	T2,DGSEEN	;SET DIGIT SEEN FLAG
INTI1A:	ANDI	T1,17		;MAKE A BINARY NUMBER
	MOVE	T4,T5		;PREPARE FOR 2-WORD MUL
	MULI	T4,12		;MULT NUMBER BY A POWER OF 10
	TLO	T5,400000	;TURN ON SIGN BIT TO STOP OVERFLOW
	ADD	T5,T1		;ACCUMULATE THE SUM
	TLZE	T5,400000	;DID WE OVERFLOW?
	 JUMPE	T4,INTI2	;NO. ANYTHING IN HIGH WORD?
	TXO	T2,OVRFLG	;YES. WE OVERFLOWED!
	ADDI	T4,1		;YES. ADD ONE TO OVERFLOW
INTI2:	SOJA	T3,INTI1	;GET NEXT DIGIT


;[JLC] NULLS ARE LEGAL
INTI3:	JUMPN	T1,INOTNL	;IF NOT NULL, CONTINUE
	JUMPL	T3,INTFRE	;IF FREE FORMAT, GO CHECK IF ANYTHING ELSE SEEN
	SOJA	T3,INTI1	;OTHERWISE, TREAT AS BLANK WITH BLANK='NULL'

INOTNL:	CAIN	T1,11		;<TAB>
	MOVEI	T1," "		;CLEAR THE <TAB> CHARACTER
	CAIE	T1," "		;CHECK FOR A BLANK
	JRST	INTI3A		;NOT A BLANK OR <TAB>
	JUMPL	T3,INTFRE	;YES, CHECK BZ IF NOT FREE FORM
	MOVE	T0,FLAGS(D)
	TXNN	T0,D%BZ		;BZ FORMAT ON?
	 SOJA	T3,INTI1	;NO. SKIP THE CHAR
	JRST	INTI1A		;YES. TREAT AS A ZERO

INTFRE:	JUMPGE	T2,INTI1	;NO DIGITS CONTINUE SCAN IF FREE FORM
	JRST	INTI4		;DONE IF DIDGITS

INTI3A:	JUMPL	T2,INTI4	;DIGIT SEEN YET
	CAIN	T1,"-"		;NO, IS THIS A MINUS SIGN
	 TXOA	T2,SGNFLG	;YES, SET THE FLAG
	CAIN	T1,"+"		;CHECK FOR A PLUS
	 TXOA	T2,DGSEEN	;TREAT SIGNS LIKE DIGITS
	JRST	INTI4		;NO. OTHER CHAR
	SOJA	T3,INTI1	;GET NEXT DIGIT

INTI4:	CAME	T3,[-1]		;IF FIRST CHAR THEN ILLEGAL
	JUMPL	T3,INTI6	;NO, CHECK FOR VARIABLE FIELD
	$ECALL	ILC,%ABORT	;"ILLEGAL CHARACTER IN DATA"
	POPJ	P,		;RETURN TO FOROTS

INTI6:	TXNN	T2,OVRFLG	;DID WE OVERFLOW?
	 JRST	INTI6A		;NO
	HRLOI	T5,377777	;YES. LOAD BIGGEST VALUE
;	IOERR	(IOV,64,571,%,Integer overflow,,INTI6A)
	$ECALL	IOV
INTI6A:	TXNE	T2,SGNFLG	;CHECK FOR SIGN
	MOVN	T5,T5		;NEGATE THE RESULT
	MOVEM	T5,(P1)		;PUT RESULT IN USER'S VARIABLE
	POPJ	P,		;RETURN TO FOROTS
%GINTO:	LDB	T1,W.PNTR	;GET FIELD WIDTH
	JUMPN	T1,%INTO	;IF NON-ZERO, DON'T SUPPLY DEFAULT MINIMUM
	MOVEI	T1,1		;AT LEAST ONE DIGIT FOR G-FORMAT
	DPB	T1,D.PNTR
%INTO:	PUSHJ	P,%SAVE1	;SAVE P1
	PUSHJ	P,INTSET	;DO SETUP
	SKIPN	T3		;FREE FORMAT?
	MOVEI	T3,17		;YES. TURN INTO FIXED!
	LDB	T1,D.PNTR	;GET MIN # DIGITS DESIRED
GOTMIN:	CAILE	T1,(T3)		;BUT DON'T LET MINIMUM NUMBER
	MOVEI	T1,(T3)		;GET BIGGER THAN FIELD WIDTH
	MOVE	T4,(P1)		;GET USER'S VARIABLE
	JUMPE	T4,INTZER	;INTEGER IS 0
INTO1:	IDIVI	T4,12		;FORM AN INTEGER
	MOVM	T5,T5		;GET REMAINDER MAGNITUDE
	IORI	T5,"0"		;CONVERT TO ASCII
	PUSH	P,T5		;SAVE ON THE STACK
	SKIPE	T4		;CHECK FOR END OF DIGITS
	AOJA	T2,INTO1	;COUNT THE DIGIT AND CONTINUE
	ADDI	T2,1		;COUNT THE LAST DIGIT
INTZER:	CAIGE	T2,(T1)		;MINIMUM NUMBER PUSHED?
	JRST	INTO1		;NO. PUSH MORE
	MOVEI	T4,(T3)		;COPY FIELD SIZE
	SUBI	T4,(T2)		;FIND THE EXCESS FIELD SIZE
	SKIPL	(P1)		;CHECK THE VARIABLE SIGN
	JUMPGE	T4,INTO2	;POSITIVE. GO OUTPUT IT
	JUMPG	T4,INTO2	;MUST HAVE ROOM FOR SIGN

	SKIPN	%FTAST		;WANT ASTERISKS?
	 JRST	INOAST		;NO
	HRL	T2,T2		;SETUP STACK RESET
	SUB	P,T2		;RESET STACK
	MOVEI	T1,"*"		;OUTPUT ASTERISKS
	PUSHJ	P,%OBYTE
	SOJG	T3,.-1

	$ECALL	FTS,INTORT	;ISSUE WARNING, CALL USER SUBR IF DESIRED


INOAST:	MOVM	T4,T4		;MAKE POSITIVE
	HRLI	T4,(T4)		;SET UP EXCESS COUNT
	SUB	P,T4		;ADJUST THE STACK
	SETZ	T4,		;CLEAR THE EXCESS COUNT


INTO2:	CAIG	T4,1		;ROOM FOR BLANKS?
	JRST	SGNOUT		;NO
	MOVEI	T1," "		;YES. OUTPUT SOME
	SKIPN	%FTSLB		;BUT NOT IF SUPPRESS SWITCH IS ON
	 PUSHJ	P,%OBYTE
	SOJA	T4,INTO2

SGNOUT:	MOVE	T0,FLAGS(D)	;T0= DDB flags
	JUMPLE	T4,INTO5	;DELETE SIGN IF NO ROOM
	MOVEI	T1," "		;ASSUME EXTRA BLANK
	JUMPLE	T2,NOPLUS	;NO PLUS IF NO DIGITS
	TXNE	T0,D%SP		;FORCE A PLUS?
	 MOVEI	T1,"+"		;YES. OUTPUT A PLUS SIGN
	SKIPGE	(P1)		;UNLESS THE VARIABLE IS NEGATIVE
	MOVEI	T1,"-"		;FOR WHICH USE A MINUS SIGN
	CAIN	T1," "		;OUTPUTTING A SPACE?
NOPLUS:	SKIPN	%FTSLB		;YES. DON'T IF SUPPRESSING LEADING BLANKS
	 PUSHJ	P,%OBYTE
INTO5:	JUMPLE	T2,INTO6	;MIGHT BE NO DIGITS!
	POP	P,T1		;GET A CHARACTER FROM THE STACK
	PUSHJ	P,%OBYTE	;OUTPUT A DIGIT
	SOJG	T2,INTO5	;CONTINUE OUTPUTTING THE DIGITS

INTO6:
INTORT:	POPJ	P,		;RETURN TO FOROTS
INTSET:	MOVE	P1,IO.ADR	;GET ADDR OF VARIABLE
	LDB	T3,W.PNTR	;GET THE FIELD WIDTH
	SETZB	T5,T2		;CLEAR STORAGE
	SETZ	T4,
	POPJ	P,

	PRGEND
	TITLE	LOGIC	LOGICAL INPUT/OUTPUT 
	SUBTTL	D. TODD/HPW/MD/DCE	28-OCT-81
	SEARCH	FORPRM




;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

	SEGMENT	CODE

	ENTRY	%LINT,%LOUT,%GLINT,%GLOUT
	EXTERN	%IBYTE,%OBYTE,W.PNTR
	EXTERN	%SKIP
	EXTERN	IO.ADR,IO.INF,%SAVE1
	EXTERN	%ABORT,%FTSLB

%GLINT:
%LINT:	PUSHJ	P,%SAVE1	;SAVE P1
	PUSHJ	P,LOGSET	;DO SETUP
	SETZM	(P1)		;INPUT SET THE USER'S VARIABLE FALSE
	MOVEI	T3,6		;SETUP TO SAVE 6 CHARS
	MOVE	T2,[POINT 6,IO.INF];IN SIXBIT
	JUMPG	T4,LINT		;NOT FREE FORMAT
	SETO	T4,		;FREE FORMAT
	PUSHJ	P,%SKIP		;SKIP SPACES
	  POPJ	P,		;NULL FIELD
	JRST	LINT0		;PROCESS FIELD
LINT:	JUMPE	T4,LINT3	;IF W=0 RETURN
	PUSHJ	P,%IBYTE	;SKIP AN INPUT CHARACTER
LINT0:	JUMPE	T1,LSKIP	;SKIP IF NULL [JLC]
	CAIE	T1," "		;CHECK FOR A BLANK
	CAIN	T1,11		;OR <TAB>
LSKIP:	SOJA	T4,LINT		;YES, IGNORE THE CHARACTER
	CAIE	T1,"."		;PERIOD?
	JRST	NOTDOT		;NO
	SOJE	T4,LINT2	;ERROR IF JUST DOT
	PUSHJ	P,%IBYTE	;GET NEXT CHAR
NOTDOT:	PUSHJ	P,DEPINF	;DEPOSIT IN INFO WORD
	CAIE	T1,"f"		;LOWER CASE F IS OK
	CAIN	T1,"F"		;CHECK FOR FALSE
	JRST	LINT1		;YES, PROCESS THE FALSE CHARACTER
	CAIE	T1,"t"		;CHECK FOR TRUE
	CAIN	T1,"T"		;UPPER CASE TOO
	TRNA			;FOUND A TRUE
	JRST	LINT2		;NO, ILLEGAL CHARACTER
	SETOM	(P1)		;YES, SET USER'S VARIABLE PRUE
LINT1:	SOJE	T4,LINT3	;SPACING REQUIRED W=0
	PUSHJ	P,%IBYTE	;YES, SKIP AN INPUT CHARACTER
	JUMPG	T4,LINT1	;CONTINUE UNTIL W=0
	CAIE	T1," "		;SPACE, TAB, OR COMMA ENDS FREE FMT
	CAIN	T1,11
	 POPJ	P,
	CAIN	T1,","
	 POPJ	P,
	MOVE	T0,FLAGS(D)
	TXNN	T0,D%LSD	;LIST-DIRECTED?
	 JRST	NOTLSD		;NO
	CAIN	T1,"/"		;SLASH ENDS LDIO
	POPJ	P,
NOTLSD:	MOVE	T0,FLAGS(D)
	TXNN	T0,D%NML	;NAMELIST?
	 JRST	NOTNML		;NO
	CAIE	T1,"("		;YES. EQUAL AND LEFT PAREN
	CAIN	T1,"="		;ARE DELIMITERS
	POPJ	P,		;SO WE STOP
	CAIE	T1,"$"		;ALSO MIGHT BE NAMELIST DELIM!
	CAIN	T1,"&"
	POPJ	P,		;IN WHICH CASE WE LEAVE
NOTNML:	PUSHJ	P,DEPINF	;ELSE DEPOSIT IN INFO WORD
	JRST	LINT1		;IGNORE ALL ELSE
LINT2:	$ECALL	ILC,%ABORT	;"ILLEGAL CHARACTER IN DATA"
LINT3:	POPJ	P,		;RETURN

%GLOUT:
%LOUT:	PUSHJ	P,%SAVE1	;SAVE P1
	PUSHJ	P,LOGSET	;DO SETUP
	SKIPE	%FTSLB		;IF SUPPRESS BLANKS ON
	 JRST	LOUT1		;Don't bother with blank fill
	SKIPG	T4		;W SPECIFIED?
	SKIPA	T4,[^D15-1]	;NO - SET DEFAULT = 15.
	SOJE	T4,LOUT1	;CHECK FOR W=1
	MOVEI	T1," "		;GET A BLANK FOR OUTPUT
	PUSHJ	P,%OBYTE	;OUTPUT A FILL BLANK
	SOJG	T4,.-1		;CONTINUE FILLING
LOUT1:	MOVEI	T1,"F"		;GET A F FOR FALSE
	SKIPGE	(P1)		;IS VARIABLE FALSE
	MOVEI	T1,"T"		;NO, SET T FOR TRUE
	PJRST	%OBYTE		;OUTPUT THE VALUE AND RETURN TO FOROTS

DEPINF:	SOJL	T3,INFDON	;NO MORE THAN 6 CHARS
	MOVEI	T5,(T1)		;COPY THE CHAR
	CAIL	T5,140		;CONVERT TO SIXBIT
	SUBI	T5,40
	SUBI	T5,40
	IDPB	T5,T2		;DEPOSIT IN INFO WORD
INFDON:	POPJ	P,

LOGSET:	SETZM	IO.INF			;CLEAR INFO WORD
	MOVE	P1,IO.ADR	;GET ADDR OF VARIABLE
	LDB	T4,W.PNTR	;GET THE FILD WIDTH
	POPJ	P,

	PRGEND
	TITLE	OCTAL	OCTAL INPUT/OUTPUT 
	SUBTTL	D. TODD/DRT/HPW/MD/SWG/DCE		28-OCT-81
	SEARCH	FORPRM




;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

	SEGMENT	CODE

	ENTRY	%OCTI,%OCTO,%GOCTI,%GOCTO
	EXTERN	%IBYTE,%OBYTE,W.PNTR,D.PNTR,%SAVE2
	EXTERN	%SKIP,%SIZTB
	EXTERN	IO.ADR,IO.TYP,%FTAST,%FTSLB
	EXTERN	%ABORT


DGSEEN==400000,,0		;MUST BE 400000, TEST WITH JUMPL
SGNFLG==200000,,0		;MINUS SIGN SEEN
%GOCTI:
%OCTI:	PUSHJ	P,%SAVE2	;SAVE P1 & P2
	PUSHJ	P,OCTSET	;DO SETUP
	SETZB	T4,T5		;CLEAR THE OUTPUT WORD
	JUMPG	T3,OCTI1	;FIELD SPECIFIED
	SETO	T3,		;NO, SET VARIABLE FLAG
	PUSHJ	P,%SKIP		;SKIP SPACES
	  JRST	OCTI5		;NULL FIELD DELIMITED BY COMMA OR EOL
	JRST	OCTI1B		;PROCESS FIELD
OCTI1:	JUMPE	T3,OCTI5	;CHECK FOR END OF FIELD
	PUSHJ	P,%IBYTE	;GET AN INPUT CHARACTER
OCTI1B:	CAIG	T1,"7"		;CHECK FOR AN OCTAL
	 CAIGE	T1,"0"		;DIGIT (0-7)
	  JRST	OCTI2		;NO, NOT AN OCTAL DIGIT
	TXO	T2,DGSEEN	;SET DIGIT SEEN FLAG
OCTI1A:	ANDI	T1,7		;MAKE AN OCTAL DIGIT
	LSHC	T4,3		;POSITION OUTPUT WORD
	TRO	T5,(T1)		;OR IN DIGIT
	SOJA	T3,OCTI1	;RETURN FOR NEXT CHARACTER


;[JLC] NULLS ARE LEGAL
OCTI2:	JUMPN	T1,ONOTNL	;IF NOT NULL, CONTINUE
	JUMPL	T3,OCTFRE	;IF FREE FORMAT, CHECK IF ANYTHING ELSE SEEN
	SOJA	T3,OCTI1	;OTHERWISE TREAT AS BLANK WITH BLANK='NULL'

ONOTNL:	CAIN	T1,11		;<TAB> CHARACTER
	MOVEI	T1," "		;CLEAR THE <TAB>
	CAIE	T1," "		;CHECK FOR A BLANK
	JRST	OCTI2A		;NOT A BLANK OR <TAB>
	JUMPL	T3,OCTFRE	;FREE FORMAT?
	MOVE	T0,FLAGS(D)
	TXNN	T0,D%BZ		;NO. BZ FORMAT ON?
	SOJA	T3,OCTI1	;NO. SKIP CHARACTER
	JRST	OCTI1A		;YES. TREAT AS A ZERO
OCTFRE:	JUMPGE	T2,OCTI1	;DIGIT NOT SEEN IN FREE FORM
OCTI2A:	JUMPL	T2,OCTI3	;HAS A DIGIT BEEN SEEN
	CAIN	T1,"-"		;CHECK FOR A MINUS SIGN
	 TXOA	T2,SGNFLG	;SET MINUS FLAG
	CAIN	T1,"+"		;CHECK FOR A PLUS SIGH
	 TXOA	T2,DGSEEN	;TREAT SIGNS LIKE DIGITS
	JRST	OCTI3		;NOT A SIGN
	SOJA	T3,OCTI1	;YES, COUNT AND GET NEXT CHAR

OCTI3:	CAME	T3,[-1]		;FIRST CHAR ILLEGAL
	JUMPL	T3,OCTI5	;NO ERROR ON VARIABLE FIELD INPUT
	$ECALL	ILC,%ABORT	;"ILLEGAL CHARACTER IN DATA"

OCTI5:	JUMPN	T4,OCTI5A	;LEAVE ALONE IF NON-ZERO 1ST WORD
	EXCH	T4,T5		;ELSE SWAP THEM
OCTI5A:	TXNN	T2,SGNFLG	;CHECK THE SIGN OF THE OUTPUT
	JRST	OCTI6		;POSITIVE
	DMOVN	T4,T4		;NEGATIVE (NEGATE THE RESULT)
	TLO	T5,400000	;DMOVN ZEROES SIGN BIT OF RIGHT
				;WORD - VAL IS NEG SO TURN IT ON ALWAYS
OCTI6:	MOVEM	T4,(P1)		;ASSUME SINGLE PREC
	CAIN	P2,2		;[735] IF DOUBLE PRECISION
	MOVEM	T5,1(P1)	;[735] THEN RETURN BOTH HALVES
	POPJ	P,		;RETURN TO FOROTS
%GOCTO:
%OCTO:	PUSHJ	P,%SAVE2	;SAVE P1 & P2
	PUSHJ	P,OCTSET	;DO SETUP
	MOVSI	T5,(POINT 3,(P1))	;GET AN OCTAL BYTE POINTER
	JUMPN	T3,OCTO1	;CHECK FOR VARIABLE FIELD OUTPUT
	MOVEI	T3,^D15		;YES SET FILED WIDTH TO O15
	CAIN	P2,2		;IF DOUBLE REAL
	MOVEI	T3,^D25		;THEN ITS O25
OCTO1:	LDB	T4,D.PNTR	;GET MINIMUM # DIGITS
	JUMPN	T4,GOTMIN	;DONE IF NON-ZERO
	MOVEI	T4,(T3)		;USE WIDTH IF 0
GOTMIN:	SUBI	T3,(T2)		;FIND THE EXCESS FIELD WIDTH
	JUMPLE	T3,OCTO2	;W<= MAX FIELD WIDTH
	MOVEI	T1," "		;SET UP A BLANK FILLER
	SKIPE	%FTSLB		;DON'T OUTPUT IF SUPPRESS SWITCH ON
	 JRST	OCTNB
	PUSHJ	P,%OBYTE	;OUTPUT THE FILLER
	SOJG	T3,.-1		;CONTINUE UNTIL W=0 (EXCESS)

OCTNB:	SETZ	T3,		;DONE WITH LEADING BLANKS
OCTO2:	JUMPE	T3,OCTO2B	;GO ON IF FITS
	ADD	T2,T3		;MODIFY # CHARS FOR OUTPUT
OCTO2A:	ILDB	T1,T5		;GET CHAR
	SKIPE	%FTAST		;ASTERISKS ON OVERFLOW?
	 JUMPN	T1,OCTOVR	;YES. OVERFLOW IF DIGIT NON-ZERO
	AOJL	T3,OCTO2A

OCTO2B:	ILDB	T1,T5		;GET A CHAR
	JUMPN	T1,OCTO3A	;GO PRINT ALL IF NON-ZERO
	MOVEI	T1,"0"		;MAYBE PRINT A ZERO
	CAILE	T2,(T4)		;PRINT A SPACE IF ALLOWED TO
	MOVEI	T1," "		;IF W.M WAS SPECIFIED
	PUSHJ	P,%OBYTE	;OUTPUT ZERO OR SPACE
	SOJG	T2,OCTO2B
	POPJ	P,		;LEAVE IF DIGITS EXHAUSTED

OCTO3:	ILDB	T1,T5		;GET THE NEXT OCTAL DIGIT
OCTO3A:	ADDI	T1,"0"		;CONVERT TO ASCII
	PUSHJ	P,%OBYTE	;OUTPUT A DIGIT
	SOJG	T2,OCTO3	;BACK FOR MORE
OCTORT:	POPJ	P,		;RETURN TO FOROTS

OCTOVR:	MOVEI	T1,"*"		;OUTPUT ASTERISKS
	PUSHJ	P,%OBYTE
	SOJG	T2,.-1

	$ECALL	FTS,OCTORT	;ISSUE WARNING, CALL USER SUBR IF DESIRED

OCTSET:	MOVE	P1,IO.ADR	;GET ADDR OF VARIABLE
	MOVEI	T2,^D12		;12 DIGITS ONLY
	MOVE	P2,IO.TYP	;GET VARIABLE TYPE
	MOVE	P2,%SIZTB(P2)	;GET ENTRY SIZE
	IMULI	T2,(P2)		;GET CORRESPONDING # DIGITS
	LDB	T3,W.PNTR	;GET THE FIELD WIDTH
	POPJ	P,

	PRGEND
	TITLE	HEXIO	HEX INPUT/OUTPUT 
	SUBTTL	CHRIS SMITH/CKS		28-Oct-81
	SEARCH	FORPRM




;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

;FROM OCTAL I/O 

	SEGMENT	CODE

	ENTRY	%HEXI,%HEXO
	EXTERN	%IBYTE,%OBYTE,W.PNTR,D.PNTR,%SAVE2
	EXTERN	%SKIP,%SIZTB
	EXTERN	IO.ADR,IO.TYP,%FTAST
	EXTERN	%ABORT

DGSEEN==400000,,0		;MUST BE 400000, TEST WITH JUMPL
SGNFLG==200000,,0		;MINUS SIGN SEEN
%HEXI:	PUSHJ	P,%SAVE2	;SAVE P1 & P2
	PUSHJ	P,HEXSET	;DO SETUP
	SETZB	T4,T5		;CLEAR THE OUTPUT WORD
	JUMPG	T3,HEXI1	;FIELD SPECIFIED
	SETO	T3,		;NO, SET VARIABLE FLAG
	PUSHJ	P,%SKIP		;SKIP SPACES
	  JRST	HEXI5		;NULL FIELD DELIMITED BY COMMA OR EOL
	JRST	HEXI1B		;PROCESS FIELD
HEXI1:	JUMPE	T3,HEXI5	;CHECK FOR END OF FIELD
	PUSHJ	P,%IBYTE	;GET AN INPUT CHARACTER
HEXI1B:	CAILE	T1,140		;LOWER CASE?
	  SUBI	T1,40		;YES, CONVERT TO UPPER
	CAIG	T1,"F"		;CHECK FOR HEX DIGIT
	 CAIGE	T1,"A"
	CAIG	T1,"9"
	 CAIGE	T1,"0"
	  JRST	HEXI2		;NON-DIGIT
	TXO	T2,DGSEEN	;DIGIT, SET DIGIT SEEN FLAG
	SUBI	T1,"0"		;MAKE INTO DIGIT
	CAIL	T1,"A"-"0"
	  SUBI	T1,"A"-"0"-^D10
HEXI1A:	LSHC	T4,4		;POSITION OUTPUT WORD
	TRO	T5,(T1)		;OR IN DIGIT
	SOJA	T3,HEXI1	;RETURN FOR NEXT CHARACTER


;[JLC] NULLS ARE LEGAL
HEXI2:	JUMPN	T1,HNOTNL	;IF NOT NULL, CONTINUE
	JUMPL	T3,HEXFRE	;IF FREE FORMAT, CHECK IS ANYTHING ELSE SEEN
	SOJA	T3,HEXI1	;OTHERWISE, TREAT AS BLANK WITH BLANK='NULL'

HNOTNL:	CAIN	T1,11		;<TAB> CHARACTER
	MOVEI	T1," "		;CLEAR THE <TAB>
	CAIE	T1," "		;CHECK FOR A BLANK
	JRST	HEXI2A		;NOT A BLANK OR <TAB>
	JUMPL	T3,HEXFRE	;FREE FORMAT?
	MOVE	T0,FLAGS(D)
	TXNN	T0,D%BZ		;NO. BZ FORMAT ON?
	SOJA	T3,HEXI1	;NO. SKIP CHARACTER
	SETZ	T1,		;YES. TREAT AS A ZERO
	JRST	HEXI1A		;GO INSERT IN OUTPUT NUMBER
HEXFRE:	JUMPGE	T2,HEXI1	;DIGIT NOT SEEN IN FREE FORM
HEXI2A:	JUMPL	T2,HEXI3	;HAS A DIGIT BEEN SEEN
	CAIN	T1,"-"		;CHECK FOR A MINUS SIGN
	 TXOA	T2,SGNFLG	;SET MINUS FLAG
	CAIN	T1,"+"		;CHECK FOR A PLUS SIGH
	 TXOA	T2,DGSEEN	;TREAT SIGNS LIKE DIGITS
	JRST	HEXI3		;NOT A SIGN
	SOJA	T3,HEXI1	;YES, COUNT AND GET NEXT CHAR

HEXI3:	CAME	T3,[-1]		;FIRST CHAR ILLEGAL
	JUMPL	T3,HEXI5	;NO ERROR ON VARIABLE FIELD INPUT
	$ECALL	ILC,%ABORT	;"ILLEGAL CHARACTER IN DATA"

HEXI5:	JUMPN	T4,HEXI5A	;LEAVE ALONE IF NON-ZERO 1ST WORD
	EXCH	T4,T5		;ELSE SWAP THEM
HEXI5A:	TXNN	T2,SGNFLG	;CHECK THE SIGN OF THE OUTPUT
	JRST	HEXI6		;POSITIVE
	DMOVN	T4,T4		;NEGATIVE (NEGATE THE RESULT)
	TLO	T5,400000	;DMOVN ZEROES SIGN BIT OF RIGHT
				;WORD - VAL IS NEG SO TURN IT ON ALWAYS
HEXI6:	MOVEM	T4,(P1)		;ASSUME SINGLE PREC
	CAIN	P2,2		;[735] IF DOUBLE PRECISION
	MOVEM	T5,1(P1)	;[735] THEN RETURN BOTH HALVES
	POPJ	P,		;RETURN TO FOROTS
%HEXO:	PUSHJ	P,%SAVE2	;SAVE P1 & P2
	PUSHJ	P,HEXSET	;DO SETUP
	MOVSI	T5,(POINT 4,(P1)) ;GET A HEX BYTE POINTER
	JUMPN	T3,HEXO1	;CHECK FOR VARIABLE FIELD OUTPUT
	MOVEI	T3,^D15		;YES SET FIELD WIDTH TO O15
	CAIN	P2,2		;IF DOUBLE REAL
	MOVEI	T3,^D25		;THEN ITS O25
HEXO1:	LDB	T4,D.PNTR	;GET MINIMUM # DIGITS
	JUMPN	T4,GOTMIN	;DONE IF NON-ZERO
	MOVEI	T4,(T3)		;USE WIDTH IF 0
GOTMIN:	SUBI	T3,(T2)		;FIND THE EXCESS FIELD WIDTH
	JUMPLE	T3,HEXO2	;W<= MAX FIELD WIDTH
	MOVEI	T1," "		;SET UP A BLANK FILLER
	PUSHJ	P,%OBYTE	;OUTPUT THE FILLER
	SOJG	T3,.-1		;CONTINUE UNTIL W=0 (EXCESS)

HEXO2:	JUMPE	T3,HEXO2B	;GO ON IF FITS
	ADD	T2,T3		;MODIFY # CHARS FOR OUTPUT
HEXO2A:	ILDB	T1,T5		;GET CHAR
	SKIPE	%FTAST		;ASTERISKS ON OVERFLOW?
	 JUMPN	T1,HEXOVR	;YES. OVERFLOW IF DIGIT NON-ZERO
	AOJL	T3,HEXO2A

HEXO2B:	ILDB	T1,T5		;GET A CHAR
	JUMPN	T1,HEXO3A	;GO PRINT ALL IF NON-ZERO
	MOVEI	T1,"0"		;MAYBE PRINT A ZERO
	CAILE	T2,(T4)		;PRINT A SPACE IF ALLOWED TO
	MOVEI	T1," "		;IF W.M WAS SPECIFIED
	PUSHJ	P,%OBYTE	;OUTPUT ZERO OR SPACE
	SOJG	T2,HEXO2B
	POPJ	P,		;LEAVE IF DIGITS EXHAUSTED

HEXO3:	ILDB	T1,T5		;GET THE NEXT HEXAL DIGIT
HEXO3A:	ADDI	T1,"0"		;CONVERT TO ASCII
	CAILE	T1,"9"		;PAST 9?
	  ADDI	T1,"A"-"0"-^D10	;YES, CONVERT TO RANGE A-F
	PUSHJ	P,%OBYTE	;OUTPUT A DIGIT
	SOJG	T2,HEXO3	;BACK FOR MORE
HEXORT:	POPJ	P,		;RETURN TO FOROTS

HEXOVR:	MOVEI	T1,"*"		;OUTPUT ASTERISKS
	PUSHJ	P,%OBYTE
	SOJG	T2,.-1

	$ECALL	FTS,HEXORT	;ISSUE WARNING, CALL USER SUBR IF DESIRED

HEXSET:	MOVE	P1,IO.ADR	;GET ADDR OF VARIABLE
	MOVEI	T2,9		;9 DIGITS ONLY
	MOVE	P2,IO.TYP	;GET VARIABLE TYPE
	MOVE	P2,%SIZTB(P2)	;GET ENTRY SIZE
	IMULI	T2,(P2)		;GET CORRESPONDING # DIGITS
	LDB	T3,W.PNTR	;GET THE FIELD WIDTH
	POPJ	P,

	PRGEND
	TITLE	DELIM	ROUTINE TO HANDLE DELIMITER OF FREE FORMAT 
	SUBTTL	M. DUHAMEL/MD		28-Oct-81
	SEARCH	FORPRM




;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

;FROM LIB40 %4(372)

	SEGMENT	CODE

	ENTRY	%SKIP,%SIZTB
	EXTERN	%IBYTE

;[JLC] ROUTINE TO SKIP SPACES OR NULLS
;NON SKIP RETURN IF CHAR IS COMMA OR EOL
%SKIP:	SKIPGE	IRCNT(D)	;ANY CHARS LEFT?
	 POPJ	P,		;NO. NON-SKIP RETURN FOR EOL
	PUSHJ	P,%IBYTE	;GET A CHAR
	JUMPE	T1,%SKIP	;SKIP NULLS
	CAIE	T1," "		;BLANK
	CAIN	T1,"	"	;OR TAB
	JRST	%SKIP		;YES.  SKIP IT
	CAIE	T1,","		;COMMA?
	AOS	(P)		;NO. SKIP RETURN
	POPJ	P,

;%SIZTB GIVES THE NUMBER OF WORDS ASSOCIATED WITH EACH TYPE OF
;VARIABLE.
%SIZTB:	1			;(0) UNDEFINED (INTEGER)
	1			;(1) LOGICAL
	1			;(2) INTEGER
	1			;(3)
	1			;(4) SINGLE REAL
	1			;(5)
	1			;(6) SINGLE OCTAL (INTEGER)
	1			;(7) LABEL
	2			;(10) DOUBLE REAL
	2			;(11) DOUBLE INTEGER
	2			;(12) DOUBLE OCTAL
	2			;(13) EXTENDED DOUBLE REAL
	2			;(14) COMPLEX
	1			;(15) COBOL BYTE STRING
	1			;(16) CHARACTER
	1			;(17) ASCIZ

	PRGEND
	TITLE	POWTB	D.P. INTEGER POWER OF TEN TABLE 
	SUBTTL	D. TODD /DRT/     28-Oct-81	TOM EGGERS
	SEARCH	FORPRM




;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
;  OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.

;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1972, 1983

	SEGMENT	CODE

	ENTRY	%HITEN,	%LOTEN,	%EXP10,	%PTLEN
	ENTRY	%DEXP,%HIMAX,%BEXP

	;POWER OF TEN TABLE IN DOUBLE PRECISION
	;INTEGER FORMAT. EACH ENTRY CONSISTS OF TWO WORDS,
	;EACH WITH 35 BITS OF FRACTION (SIGNS ARE EXCLUDED).
	;THE BINARY POINT IS BETWEEN BITS 0 AND 1 OF THE
	;HI ORDER WORD. THE EXPONENT FOR THE 70 BIT
	;FRACTION IS STORED IN THE SHORT TABLE CALLED "EXPTEN".
	;FOLLOWING THE STANDARD TABLE IS ATHE EXTENDED EXPONENT
	;TABLE, WHICH IS A SPARSE POWER OF TEN TABLE RANGING FROM
	;10**21 TO 10**326, FOR USE IN ENCODING AND DECODING G-FLOATING
	;NUMBERS.

	;THE NUMBERS IN BOTH TABLES ARE TRUNCATED, THAT IS, NO
	;ROUNDING HAS BEEN DONE FROM THE (VIRTUAL) THIRD WORD OF
	;PRECISION. THUS, ON AVERAGE, THE TABLES ARE BIASED 1/2 BIT
	;DOWNWARDS.
DEFINE .TAB. (A)<
	NUMBER -246,357347511265,056017357445
	NUMBER -242,225520615661,074611525567
	NUMBER -237,273044761235,213754053125
	NUMBER -234,351656155504,356747065752
	NUMBER -230,222114704413,025260341562
	NUMBER -225,266540065515,332534432117
	NUMBER -222,344270103041,121263540543
	NUMBER -216,216563051724,322660234335
	NUMBER -213,262317664312,007434303425
	NUMBER -210,337003641374,211343364332
	NUMBER -204,213302304735,325716130610
	NUMBER -201,256162766125,113301556752
	NUMBER -176,331617563552,236162112545
	NUMBER -172,210071650242,242707256537
	NUMBER -167,252110222313,113471132267
	NUMBER -164,324532266776,036407360745
	NUMBER -160,204730362276,323044526457
	NUMBER -155,246116456756,207655654173
	NUMBER -152,317542172552,051631227231
	NUMBER -146,201635314542,132077636440
	NUMBER -143,242204577672,360517606150
	NUMBER -140,312645737651,254643547602
	NUMBER -135,375417327624,030014501542
	NUMBER -131,236351506674,217007711035
	NUMBER -126,306044030453,262611673245
	NUMBER -123,367455036566,237354252116
	NUMBER -117,232574123152,043523552261
	NUMBER -114,301333150004,254450504735
	NUMBER -111,361622002005,327562626124
	NUMBER -105,227073201203,246647575664
	NUMBER -102,274712041444,220421535242
	NUMBER -077,354074451755,264526064512
	NUMBER -073,223445672164,220725640716
	NUMBER -070,270357250621,265113211102
	NUMBER -065,346453122766,042336053323
	NUMBER -061,220072763671,325412633103
	NUMBER -056,264111560650,112715401724
	NUMBER -053,341134115022,135500702312
	NUMBER -047,214571460113,172410431376
	NUMBER -044,257727774136,131112537675
	NUMBER -041,333715773165,357335267655
	NUMBER -035,211340575011,265512262714
	NUMBER -032,253630734214,043034737477
	NUMBER -027,326577123257,053644127417
	NUMBER -023,206157364055,173306466551
	NUMBER -020,247613261070,332170204303
	NUMBER -015,321556135307,020626245364
	NUMBER -011,203044672274,152375747331
	NUMBER -006,243656050753,205075341217
	NUMBER -003,314631463146,146314631463
A:	NUMBER 001,200000000000,000000000000
	NUMBER 004,240000000000,000000000000
	NUMBER 007,310000000000,000000000000
	NUMBER 012,372000000000,000000000000
	NUMBER 016,234200000000,000000000000
	NUMBER 021,303240000000,000000000000
	NUMBER 024,364110000000,000000000000
	NUMBER 030,230455000000,000000000000
	NUMBER 033,276570200000,000000000000
	NUMBER 036,356326240000,000000000000
	NUMBER 042,225005744000,000000000000
	NUMBER 045,272207335000,000000000000
	NUMBER 050,350651224200,000000000000
	NUMBER 054,221411634520,000000000000
	NUMBER 057,265714203644,000000000000
	NUMBER 062,343277244615,000000000000
	NUMBER 066,216067446770,040000000000
	NUMBER 071,261505360566,050000000000
	NUMBER 074,336026654723,262000000000
	NUMBER 100,212616214044,117200000000
	NUMBER 103,255361657055,143040000000
	NUMBER 106,330656232670,273650000000
	NUMBER 112,207414740623,165311000000
	NUMBER 115,251320130770,122573200000
	NUMBER 120,323604157166,147332040000
	NUMBER 124,204262505412,000510224000
	NUMBER 127,245337226714,200632271000
	NUMBER 132,316627074477,241000747200
	NUMBER 136,201176345707,304500460420
	NUMBER 141,241436037271,265620574524
	NUMBER 144,311745447150,043164733651
	NUMBER 147,374336761002,054022122623
	NUMBER 153,235613266501,133413263574
	NUMBER 156,305156144221,262316140533
	NUMBER 161,366411575266,037001570661
	NUMBER 165,232046056261,323301053417
	NUMBER 170,300457471736,110161266322
	NUMBER 173,360573410325,332215544007
	NUMBER 177,226355145205,250330436404
	NUMBER 202,274050376447,022416546105
	NUMBER 205,353062476160,327122277527
	NUMBER 211,222737506706,206363367626
	NUMBER 214,267527430470,050060265574
	NUMBER 217,345455336606,062074343133
	NUMBER 223,217374313163,337245615771
	NUMBER 226,263273376020,327117161367
	NUMBER 231,340152275425,014743015665
	NUMBER 235,214102366355,050055710521
	NUMBER 240,257123064050,162071272645
	NUMBER 243,332747701062,216507551417
	NUMBER 247,210660730537,231114641751
	NUMBER 252,253035116667,177340012343
>
DEFINE NUMBER (A,B,C) <B>

TENTAB:	.TAB. %HITEN

DEFINE NUMBER (A,B,C) <C>

	.TAB. %LOTEN
%PTLEN==%HITEN-TENTAB	;CALCULATE NUMBER OF TABLE ENTRIES BEFORE "TENS"

DEFINE	NUMBER	(A,B,C) <A>

	.TAB. %EXP10

	DEFINE	HITABL <
%%EXP==0
 HIEXP  21, 0106, 330656232670, 273650000000
 HIEXP  31, 0147, 374336761002, 054022122623
 HIEXP  42, 0214, 267527430470, 050060265574
 HIEXP  52, 0255, 325644342445, 137230015034
 HIEXP  63, 0322, 233446460731, 230310256730
 HIEXP  73, 0363, 265072116565, 045110433532
 HIEXP  84, 0430, 203616042160, 325266273336
 HIEXP  94, 0471, 231321375525, 337205744037
 HIEXP 105, 0535, 337172572336, 007545174113
 HIEXP 115, 0577, 201742476560, 254305755623
 HIEXP 126, 0643, 275056630405, 050037577755
 HIEXP 136, 0704, 334103204270, 352046213535
 HIEXP 147, 0751, 240125245530, 066753037574
 HIEXP 158, 1015, 351045347212, 074316542736
 HIEXP 168, 1057, 207525153773, 310102120644
 HIEXP 179, 1123, 305327273020, 343641442602
 HIEXP 189, 1164, 345647674501, 121102720143
 HIEXP 200, 1231, 247161432765, 330455055455
 HIEXP 210, 1272, 302527746114, 232735577632
 HIEXP 221, 1337, 215510706516, 363467704427
 HIEXP 231, 1400, 244711331533, 105545654076
 HIEXP 242, 1444, 357747123347, 374251221667
 HIEXP 252, 1506, 213527073575, 262011603206
 HIEXP 263, 1552, 313176275662, 023427342311
 HIEXP 273, 1613, 354470426352, 214122564267
 HIEXP 284, 1660, 254120203313, 021677205125
 HIEXP 295, 1724, 372412614644, 074374052054
 HIEXP 305, 1766, 221645055640, 266335117623
 HIEXP 316, 2032, 324146136354, 344313410127
 HIEXP 326, 2073, 367020634251, 325055547056
>

%HIMAX==^D326

DEFINE	HIEXP	(DEXP,BEXP,HIWRD,LOWRD) <
	XWD	BEXP,^D<DEXP>
	EXP	HIWRD
	EXP	LOWRD
	%%EXP==%%EXP+1
>


%DEXP:	HITABL
%BEXP==%DEXP+1

	END