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Trailing-Edge - PDP-10 Archives - decus_20tap5_198111 - decus/20-0140/cross.txt
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	THE MATERIAL USED IN THIS SPECIFICATION, INCLUDING BUT
	NOT LIMITED TO CONSTRUCTION TIMES AND OPERATING SPEEDS,
	IS FOR INFORMATIONAL PURPOSES ONLY.  ALL SUCH MATERIAL
	IS SUBJECT TO CHANGE WITHOUT NOTICE.  CONSEQUENTLY
	DEC MAKES NO CLAIM AND SHALL NOT BE LIABLE FOR ITS
	ACCURACY.



		THIS DOCUMENT DESCRIBES THE OPERATIONAL PROCEDURES
		FOR CROSS, AN ASSEMBLER WHICH OPERATES ON THE DEC-
		SYSTEM-10/20 SYSTEMS, TRANSLATING SOURCE CODE FOR
		6502, 6800, 8080, 8085, Z80, 1802, F8[FUTURE], AND 8008
		MICRO-PROCESSORS INTO BINARY FILES SUITABLE FOR
		ABSOLUTE LOAD.
			CROSS


		    TABLE OF CONTENTS



CHAPTER 1	INTRODUCTION

CHAPTER 2	OPERATING PROCEDURES

CHAPTER 3	LISTING CONTROL

CHAPTER 4	ENABLE/DISABLE CONTROL

CHAPTER 5	USER-DEFINED SWITCH DEFAULTS
			CHAPTER 1

			INTRODUCTION



CROSS IS AN ASSEMBLER WHICH OPERATES ON THE DECSYSTEM-10/20 AND
ASSEMBLES CODE FOR MANY CURRENTLY AVAILABLE MICRO-PROCESSORS. WITH THE
EXCEPTION OF THE VARIATIONS LISTED IN THIS MANUAL, CROSS IMPLEMENTS THE
FEATURES OF THE PDP-11 MACRO ASSEMBLER FOR RSX-11D.  NO ATTEMPT WAS
MADE TO PROVIDE SOURCE COMPATIBILITY BETWEEN CROSS AND OTHER MICRO-
PROCESSOR ASSEMBLERS.  RATHER, CROSS HAS BEEN DESIGNED TO PROVIDE
CONSISTENT, POWERFUL FEATURES FOR ALL OF THE MNEMONICS ASSOCIATED
WITH EACH MICRO-PROCESSOR.

	WHILE CROSS IS DESIGNED TO BE LANGUAGE COMPATIBLE WITH THE
MACRO-11 LANGUAGE, ITS PDP-10 OPERATING ENVIRONMENT NECESSITATES
A PDP-10 STYLE OPERATING PROCEDURE.

	EXPRESSION EVALUATION HAS BEEN UPDATED TO PROVIDE THE FOLLOWING
FEATURES:

	DEFAULT RADIX IS DECIMAL.
	@<EXPR> INDICATES OCTAL RADIX, SAME AS TO ^O<EXPR>
	%<EXPR> INDICATES BINARY (6502/6800 ONLY), SAME AS TO ^B<EXPR>
	%NN	INDICATES REGISTER VALUE NN (ALL OTHERS)
	$<EXPR> INDICATES HEXIDECIMAL RADIX
	<EXPR>^ INDICATES THAT THE EVALUATED EXPRESSION IS TO BE DIVIDED
		BY 256. (HIGH BYTE)

	THE ASSEMBLER MAKES TWO PASSES OVER THE SOURCE, OUTPUTTING
THE BINARY AND LISTING FILES DURING PASS TWO AND APPENDING A SYMBOL
OR CROSS REFERENCE TABLE TO THE LISTING FILE.  PDP-10 MEMORY IS
DYNAMICALLY ALLOCATED FOR LARGE SYMBOL TABLE STORAGE AND MACRO STORAGE.
			CHAPTER 2

			OPERATING PROCEDURES



2.1	LOADING CROSS

CROSS IS RUN BY TYPING THE MONITOR COMMAND:

	@CROSS			;TOPS20
	.R CROSS		;TOPS10

2.2	INITIAL DIALOGUE

WHEN THE ASSEMBLER IS READY TO ACCEPT THE USER'S COMMAND STRING,
IT TYPES AN ASTERISK.  THE USER MUST NOW TYPE HIS COMMAND STRING
ON THE SAME LINE.

	THE GENERAL FORM OF THE COMMAND STRING IS:

	BINARY OUTPUT, LISTING OUTPUT _ SOURCE INPUT(S)

	EACH INPUT/OUTPUT SPECIFICATION CONSISTS OF THE GROUP:

		DEV:FILNAM.EXT[PROJ.,PROG.]/SWITCH:ARG

	1.	DEV IS:

		DSK	FOR DISK
		PTR	FOR PAPER TAPE READER
		PTP	FOR HIGH SPEED PUNCH
		TTY	FOR THE USER'S TELETYPE
		LPT	FOR A QUEUED LINE PRINTER

		IF NOT SPECIFIED, THE DEVICE IS ASSUMED TO BE THE
		DISK.  OTHER SYSTEM DEVICES MAY ALSO BE USED, DEPENDING
		UPON THE SYSTEM CONFIGUATION.

	2.	FILNAM IS THE FILE NAME OF THE APPROPRIATE FILE.

	3.	EXT IS THE FILE NAME EXTENSION FOR THAT FILE.
		IF IS NOT SPECIFIED, THE ASSUMPTIONS ARE:

		BINARY STRING:	   .BIN (ABSOLUTE)
		LISTING STRING:    .LST
		SOURCE STRING:     .M65 (MOS 6502)
				   .M68 (MOTOROLA 6800)
				   .M80 (8080/Z80/8085)
				   .M88 (8008 , 8080 MNEMONICS)
				   .M08 (8008 , INTEL MNEMONICS)
				   .M18 (CPD1802 , COSMAC)
				   .MF8 (FAIRCHILD F8) [FUTURE]

	4.	[PROJ.,PROG.] IS THE PROJECT-PROGRAMMER NUMBER ASSIGNED
		FOR THE DISK AREA TO BE USED.  IF NOT SPECIFIED, THE
		USER'S LOCAL AREA IS ASSUMED.  ONCE SPECIFIED, THE
		NUMBER PAIR BECOMES THE NEW DEFAULT ASSUMPTION FOR THE
		FOLLOWING FILES. (USE TRANSLATE COMMAND ON TOPS20)
	5.	SWITCHES ARE SPECIFIED BY PRECEDING EACH WITH A SLASH
		CHARACTER.  SWITCH ARGUMENTS ARE PRECEDED BY COLONS.


		/M65	SOURCE IS 6502 CODE

		/M68	SOURCE IS 6800 CODE

		/M80	SOURCE IS 8080, 8085 OR Z80 CODE

		/M88	SOURCE IS 8008 USING 8080 COMPATIBLE MNEMONICS

		/M08	SOURCE IS 8008 ORIGINAL INTEL MNEMONICS

		/M18	SOURCE IS 1802 CODE (RCA COSMAC)

		/MF8	SOURCE IS FAIRCHILD F8 [FUTURE]

		/LI	SIMULATE .LIST DIRECTIVE (SEE CHAPTER 3).

		/NL	SIMULATE .NLIST DIRECTIVE (SEE CHAPTER 3).

		/EN	SIMULATE .ENABL DIRECTIVE (SEE CHAPTER 4).

		/DS	SIMULATE .DSABL DIRECTIVE (SEE CHAPTER 4).

		/CRF	APPEND CROSS REFERENCE TABLE TO THE LISTING
			FILES (SEE CHAPTER 3).

		/PTP	BINARY OUTPUT IS ASCII CODED HEX

		/N	SUPPRESS ERROR MESSAGES AND EXPANDED SUMMARY
			TO THE TELETYPE.

		/OCT	LISTING FORMAT IN OCTAL - HEX IS DEFAULT

		/I	OUTPUT BINARY IN IMAGE MODE (ONE BYTE PER
			36 BIT PDP-10 WORD). THIS SWITCH MUST BE USED
			TO COPY DIRECTLY TO PAPER TAPE.

		/P	PACK BINARY OUTPUT.  THIS IS THE DEFAULT
			CASE AND THE SWITCH IS NOT NEEDED.

		/CDR	SIMULATE CARD READER INPUT.  THIS IS ACTUALLY
			INDEPENDENT OF THE PHYSICAL INPUT DEVICE BUT
			CAUSES THE ASSEMBLER TO IGNORE ALL CHARACTERS ON
			A COLUMN AFTER THE 72ND.

		/SOL	SEQUENCE OUTPUT LINES (SEE CHAPTER 3).

		/GNS	GENERATE NEW SOURCE (SEE CHAPTER 3).

		/NSQ	SUPPRESS LISTING OF PDP-10 STYLE SEQ. NUMBERS.

		/EQ	EQUATE THE FOLLOWING SYMBOLS TO ZERO.  THIS IS
			A METHOD FOR INTRODUCING CONDITIONAL ARGUMENTS
			WITHOUT CREATING SPECIAL PARAMETER TAPES.
			"/EQ:SYM1:SYM2"  IS THE EQUIVALENT OF THE SOURCE
			STATEMENTS "SYM1=0" AND "SYM2=0".
			CHAPTER 3

			LISTING CONTROL



	CROSS HAS TWO CATEGORIES OF LISTING CONTROLS:  MACRO-11
COMPATIBLE, WHICH MAY BE SPECIFIED EITHER IN SOURCE STATEMENTS OR
IN THE COMMAND STRING, AND A SUPERSET WHICH IS LIMITED TO THE
COMMAND STRING.


	3.1	SOURCE STATEMENT LISTING CONTROL

	LISTINGS ARE CONTROLLED AT SOURCE STATEMENT LEVEL THROUGH
THE USE OF THE .LIST AND .NLIST DIRECTIVES.  THESE ARE COMPLEMENTARY
IN THAT ANY FUNCTION WHICH CAN BE ENABLED BY A .LIST CAN BE DISABLED
BY A .NLIST.  TO REDUCE REDUNDANCY, THE FOLLOWING DESCRIPTIONS WILL
EMPHASIZE THE .LIST WHILE IMPLYING THE .NLIST COMPLEMENT.

	THE FOLLOWING ARE THE ALLOWABLE ARGUMENTS FOR THE .LIST
DIRECTIVE ALONG WITH THE DEFAULT SETTINGS (LI FOR .LIST AND NL FOR
.NLIST):

	THE FIRST GROUP CONTROLS INTRA-LINE LISTING.  SUPPRESSION OF
ANY OF THESE WILL CAUSE THE ASSEMBLER TO UTILIZE THE SPACE BY
MOVING THE REMAINDER OF THE LINE OVER.


SEQ	LIST THE SEQUENCE NUMBERS.  THESE NUMBERS REPRESENT
	THE SOURCE LINE NUMBERS AND ARE REPLACED BY THE NESTING LEVEL
	IN PARENTHESES FOR GENERATED LINES (MACROS, ETC.).

LOC	LIST THE VALUE OF THE LOCATION COUNTER.

BIN	LIST THE BINARY CODE GENERATED BY THE ASSEMBLER.

SRC	LIST THE SOURCE STATEMENT.  THIS IS INCLUDED PRIMARILY
	FOR COMPLETENESS.

COM	LIST THE COMMENT FIELD.

BEX	LIST BINARY CODE WHICH REQUIRES MORE THAN ONE LISTING LINE.
	SUPPRESSION OF THIS IS PARTICULARLY USEFUL IN REDUCING THE
	LENGTH OF LISTING REQUIRED FOR LONG .ASCII STRINGS.


	THE FOLLOWING ARGUMENTS PERTAIN TO ENTIRE STATEMENTS:

MB	LIST MACRO BINARY AND CALL ONLY - NO SOURCE

MD 	LIST MACRO DEFINITIONS.

MC 	LIST MACRO CALLS.

ME -NL	LIST MACRO EXPANSIONS.  THE DEFAULT CAUSES THE EXPANSION
	TO BE SUPPRESSED IN THE INTEREST OF SUPPLY ECONOMY.  ME
	CONTROLS ALL GENERATED TEXT (.MACRO'S, .REPT'S, AND .IRP'S).

	CAUTION - DUE TO THEIR DUAL NATURE, .REPT'S AND .IRP'S QUALIFY
	BOTH AS DEFINITIONS AND CALLS.  CROSS TREATS MD AND MC AS A
	PAIR IN THESE CASES, SUPPRESSING THE LISTING IF EITHER IS SET.


CND	LIST CONDITIONALS.  SUPPRESSION CAUSES UNSATISFIED
	CONDITIONALS AND ALL CONDITIONAL DIRECTIVES (WHETHER SATISFIED
	OR NOT) TO BE NOT LISTED.

SYM	APPEND A SYMBOL TABLE TO THE LISTING FILE.

TTM	LIST IN TELETYPE FORMAT (ONE COLUMN OF BINARY TO A LINE,
	TRUNCATION AFTER 72 COLUMNS).  DEFAULT SETTING IS DETERMINED
	BY THE OUTPUT DEVICE SPECIFIED:  ENABLED IF THE PHYSICAL DEVICE
	IS TTY AND DISABLED (LINE PRINTER MODE) IN ALL OTHER CASES.

TOC-NL	LIST A TABLE OF CONTENTS DURING PASS ONE.  THIS CONSISTS
	OF THE .SBTTL DIRECTIVES BEING LISTED AT THE BEGINNING OF
	THE LISTING FILE.  EACH LINE CONSISTS OF THE LINE NUMBER AND ALL
	TEXT TO THE RIGHT OF THE .SBTTL DIRECTIVE.

LD -NL	LIST LISTING DIRECTIVES.  SPECIFICALLY, THIS CAUSES ALL
	.LIST/.NLIST DIRECTIVES WHICH HAVE NO ARGUMENTS TO BE LISTED.
	ITS PRIMARY USE IS IN DEBUGGING LISTING CONTROL.
	.LIST AND .NLIST DIRECTIVES WITH NO ARGUMENTS PERFORM AN OVER-
RIDE FUNCTION.  THEY CONTROL A LISTING "LEVEL" WHICH IS
DECREMENTED FOR EACH .NLIST AND INCREMENTED FOR EACH .LIST.  THE
LEVEL COUNT IS USED AS A THREE WAY SWITCH:

	1.	ZERO (INITIAL CONDITION):  NO SPECIAL ACTION.

	2.	LESS THAN ZERO:  UNCONDITIONALLY SUPPRESS THE LISTING
		EXCEPT FOR LINES CONTAINING ERRORS.

	3.	GREATER THAN ZERO:  LIST UNCONDITIONALLY.

.LIST/.NLIST ARE NORMALLY PAIRED TO RETURN THE LEVEL COUNT TO ZERO.
THE .NLIST/.LIST SEQUENCE IS USED TO SUPPRESS A RANGE WHICH IS
NORMALLY LISTED, WHILE THE .LIST/.NLIST SEQUENCE IS USED TO
OVER-RIDE A RANGE WHICH IS NORMALLY SUPPRESSED, SUCH AS IN A MACRO
EXPANSION.  THE LEVEL COUNT ALLOWS MACRO EXPANSIONS TO USE THE
LISTING CONTROL AND RETURN IT TO ITS PREVIOUS STATE.
	3.2	COMMAND STRING EQUIVALENTS

	THE COMMAND STRING CONTAINS THE EQUIVALENT OF ALL THE ABOVE
.LIST AND .NLIST FUNCTIONS AS WELL AS SOME THAT ARE NOT AVAILABLE AT
SOURCE LEVEL.  INDEED, MANY OF THE SOURCE LEVEL ARGUMENTS ARE OF PRIMARY
INTEREST AT COMMAND STRING LEVEL BUT CAN BE USED IN THE SOURCE
TO MODIFY DEFAULT SETTINGS.

	THE COMMAND STRING EQUIVALENTS OF .LIST AND .NLIST ARE /LI
AND /NL, RESPECTIVELY.  ARGUMENTS ARE SPECIFIED BY PRECEDING THEM
WITH COLONS.  THUS /NL:BEX:CND IS THE EQUIVALENT OF .NLIST  CND,BEX.

	IN ALL CASES, COMMAND STRING SWITCHES OVERRIDE THEIR SOURCE
LEVEL EQUIVALENTS (AS WELL AS PREVIOUS OCCURRENCES IN THE COMMAND
STRING).  EFFECTIVELY, SPECIFICATION OF A FUNCTION IN A COMMAND STRING
WILL CAUSE ALL ITS SOURCE LEVEL EQUIVALENTS (AND THEIR
COMPLEMENTS) TO BE IGNORED.  I.E. /LI:ME WOULD ENABLE THE LISTING
OF MACRO EXPANSIONS AND CAUSE ALL ".LIST/.NLIST ME"  DIRECTIVES
TO BE IGNORED.

	/LI (NO ARGUMENTS) CAUSES EVERYTHING TO BE LISTED, WHILE /NL
SUPPRESSES THE LISTING OF ALL BUT ERROR LINES, THE SYMBOL TABLE, AND
THE CROSS REFERENCE TABLES.
	3.3	OTHER LISTING CONTROLS

	THE FOLLOWING SWITHCES ARE SPECIFIED IN OUTPUT SIDE OF THE
COMMAND STRING BY PRECEDING THE MNEMONIC BY A SLASH:

	/OCT	LIST IN OCTAL - DEFAULT IS HEX

	/N	SUPPRESS ERROR MESSAGES TO THE TELETYPE (UNLESS IT IS
		ALSO THE LISTING DEVICE).

	/CRF	APPEND A CROSS REFERENCE TABLE TO THE LISTING
		FILE.  CROSS ACCOMPLISHES THIS IN THE FOLLOWING MANNER:

	1.	THE LISTING FILE IS GENERATED IN THE NORMAL WAY
		DURING PASS TWO, USING THE NAME SPECIFIED BY THE USER.

	2.	SIMULTANEOUSLY, A TEMPORARY FILE (XXXCRF.TMP, WHERE
		XXX IS THE JOB NUMBER) IS CREATED.  THIS CONTAINS
		ENCODED CREF INFORMATION.

	3.	AT THE END OF PASS TWO, THE TEMPORARY FILE IS READ
		AND THE CREF INFORMATION IS INTEGRATED INTO THE SYMBOL
		TABLE.

	4.	THE REFERENCES ARE APPENDED TO THE LISTING FILE.
		IF INSUFFICIENT CORE WAS AVAILABLE TO BUILD THE TABLE,
		THE PROCESS IS REPEATED.  WHEN THROUGH, THE TEMPORARY 
		FILE IS DELETED.

	THE CROSS REFERENCE TABLE FORMAT IS AS FOLLOWS:

	1.	THE SYMBOL ITSELF.

	2.	ITS SYMBOL TABLE VALUE, UNLESS .NLIST SYM WAS
		SPECIFIED.  THEREFORE THE SYMBOL TABLE ITSELF IS
		ALWAYS PRE-EMPTED.

	3.	ALL REFERENCES TO THE SYMBOL, EXCEPT THAT NO MORE THAN
		ONE REFERENCE TO A GIVEN SOURCE LINE WILL BE LISTED.
		SYMBOLS IN GENERATED TEXT ALWAYS REFER TO THE PREVIOUS
		SOURCE LINE.

	4.	DEFINING OCCURRENCES ARE FLAGGED WITH A "#".

	5.	DESTRUCTIVE REFERENCES ARE FLAGGED WITH A "*".  THESE
		ARE DEFINED TO BE ALL SYMBOLS ENCOUNTERED IN OP-CODE
		FIELDS WHICH STORE INTO A MEMORY LOCATION OR A REGISTER.

	6.	AS MANY REFERENCES PER LISTING LINE AS POSSIBLE,
		DEPENDING UPON THE "TTM" MODE, ARE USED.  THIS CAN BE
		INCREASED BY SUPPRESSING "SYM".
	/SOL	SEQUENCE OUTPUT LINES.  LISTINGS ARE NORMALLY SOURCE
		ORIENTED:

	1.	SEQUENCE NUMBERS REFLECT THE SOURCE LINE NUMBER.

	2.	MACRO EXPANSION LINES HAVE THEIR NESTING LEVEL, IN
		PARENTHESES, IN THE SEQUENCE NUMBER FIELD.

	3.	LINES CONTAINING NOTHING BUT A FORM FEED ARE NOT
		LISTED BUT CAUSE THE SEQUENCE NUMBER TO BE INCREMENTED.

	4.	PAGE NUMBERS REFLECT PHYSICAL INPUT PAGES (INCREMENTED
		ONLY UPON ENCOUNTERING A FORM FEED).  PAGES FORCED BY
		THE ASSEMBLER HAVE A -N TO REFLECT AN EXTENSION PAGE.
		I.E.  IF THE ASSEMBLER HAD ENCOUNTERED 3 FORM FEEDS AND
		WAS ON ITS THIRD LISTING PAGE SINCE THE LAST ONE, IT
		WOULD BE "PAGE 4-2".

	WHEN /SOL IS SPECIFIED, LISTINGS ARE OUTPUT ORIENTED:

	1.	LISTED LINES HAVE CONSECUTIVE NUMBERS, EXCEPT FOR
		BINARY EXTENSIONS.

	2.	PAGE NUMBERS REFLECT THE NUMBER OF PAGES LISTED.


	/GNS	GENERATE A NEW SOURCE.  THIS CAUSES THE LISTING FILE
		TO TAKE ON THE APPEARANCE OF A SOURCE FILE.
		SPECIFICALLY, IT:

	1.	SUPPRESSES THE LISTING OF HEADERS, ERROR FLAGS, SUMMARY
		BLOCKS, AND ANY OTHER OUTPUT OVER WHICH THE USER
		OTHERWISE WOULD HAVE NO CONTROL.

	2.	SIMULATES A /NL:SEQ:LOC:BIN:BEX:ME.

	THEREFOR, BY ITSELF, IT RECREATES THE SOURCE FILE.  NORMAL USAGE
WOULD HAVE SUPPLEMENTARY SWITCHES FOLLOWING IT.  I.E. /GNS/NL:MD:MC
/LI:ME WOULD REPLACE MACROS, REPEATS, AND IRPS BY THEIR GENERATED
CODE, /GNS/NL:CND WOULD PURGE CONDITIONALS, AND /GNS/LI:SEQ WOULD
BE AN EXPENSIVE WAY OF CREATING A SEQUENCE NUMBERED LISTING
OF THE SOURCE FILE.
			CHAPTER 4

			ENABLE/DISABLE CONTROL


	AS AN ALTERNATIVE TO THE PROLIFERATION OF DIRECTIVES, CROSS
USES ONE COMPLEMENTARY PAIR, .ENABL/.DSABL, WITH ARGUMENTS.  THEIR
COMMAND STRING EQUIVALENTS ARE /EN AND /DS.  THE RELATIONSHIP
BETWEEN COMMAND STRING AND SOURCE STATEMENT SPECIFICATION, AS WELL
AS THEIR ARGUMENT SPECIFICATION, IS THE SAME AS IN LIST/NOLIST.

	M85	ALLOW 8085 OPCODES (RIM/SIM) IN .M80 FILES

	Z80	ALLOW Z80 OPCODES IN .M80 FILES

	FPT	FLOATING POINT TRUNCATION.  ".ENABL FPT" IS
		EQUIVALENT TO ".TRUNC" WHILE ".DSABL FPT" IS
		EQUIVALENT TO ".ROUND".

	ABS	ABSOLUTE ASSEMBLY

	AMA	ABSOLUTE MEMORY ADDRESSING

	NPP	".ENABL NPP" CAUSES SUPPRESSION OF THE OUTPUT OF
		THE FOLLOWING CODE, WHILE ".DSABL NPP" CAUSES ITS
		RESUMPTION.

	ERF	ERROR FLAGS CAN BE SELECTIVELY SUPPRESSED (OR ENABLED)
		BY SPECIFYING ERF, DIRECTLY FOLLOWED BY THE SELECTED
		ERROR CHARACTERS.  "/DS:ERFZM" WOULD CAUSE "M" AND "Z"
		ERRORS TO BE IGNORED, "/DS:ERF"WOULD CAUSE ALL ERRORS
		TO BE IGNORED, AND "/EN:ERFA" WOULD CAUSE"A" FLAGS
		(ARGUMENT ERRORS) TO BE FLAGGED.

	LC	LOWER CASE TO UPPER CASE TRANSLATION OF INPUT

	LSB	LOCAL SYMBOL BLOCK

	TIM	TIMING INFORMATION - CAUSES NUMBER OF STATES TO BE
		OUTPUT ON THE LISTING.

	REG	DEFAULT REGISTER NAMES
			CHAPTER 5

		USER-DEFINED SWITCH DEFAULTS

CROSS is capable of accepting user-defined switch DEFAULTS.  ANY
switches that are valid in a command string may be specified in a
special file called SWITCH.INI.  When CROSS is run, it will LOOK FOR
THIS FILE IN THE USER'S DIRECTORY. IF THE FILE IS NOT FOUND, THEN
standard defaults (as defined elsewhere in this document) are assumed.
If SWITCH.INI is found, but no CROSS switches are found, default
settings are assumed.

To specify defaults, use the editor of your choice to create a file
called SWITCH.INI.  This file must contain a line of the following
format:

CROSS/switch1/switch2...../switchn

Continuation lines are permitted.  Specifically, a line containing a
terminal hyphen is assumed to be followed by a continuation LINE.

Of course CROSS does not consider the hyphen to be a part of any switch.



NOTE THAT THIS FEATURE IS A SUBSET OF THE FACILITY OFFERED NORMALLY
BY USE OF SWITCH.INI FILES.