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.;24-FEB-77-GR
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^^BATCON.DOC\\ -- ^CHANGES FROM ^V12(1041) TO ^V13(1071)
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^SEPTEMBER 1976
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^COPYRIGHT (^C) 1975,1976,1977
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^DIGITAL ^EQUIPMENT ^CORPORATION, ^MAYNARD, ^MASS.
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^THIS SOFTWARE IS FURNISHED UNDER A LICENSE FOR USE ONLY ON A
SINGLE COMPUTER SYSTEM AND MAY BE COPIED ONLY 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 EXCEPT FOR USE ON SUCH SYSTEM AND TO ONE WHO
AGREES TO THESE LICENSE TERMS. ^TITLE TO AND OWNERSHIP OF THE
SOFTWARE SHALL AT ALL TIMES REMAIN IN ^^DEC\\.
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^THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT
NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ^DIGITAL
^EQUIPMENT ^CORPORATION.
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^^DEC\\ ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY ^^DEC\\.
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^^BATCON.DOC\\ -- ^CHANGES FROM ^V12(1041) TO ^V13(1071)
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^SEPTEMBER 1976
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1.0##<SUMMARY
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^^BATCON\\ VERSION 13 CONTAINS SEVERAL NEW FEATURES AND A FEW BUG FIXES.
^THE MOST IMPORTANT NEW FEATURES ARE:
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1.##^PERIODIC CHECKPOINTING OF THE USERS ^^LOG\\ FILE TO PREVENT DATA LOSAGE.
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2.##^THE ABILITY TO TRAP ^TIME ^LIMIT ^EXCEEDED ERRORS.
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3.##^FEWER ^^UUO\\S FOR ^TIME ^STAMPS AND ^OPERATOR ^CHECKING.
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^THESE AS FURTHUR DETAILED IN SECTION 2.
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^^BATCON\\ 13 CONFORMS TO THE ^^DATE\\75 STANDARD AND THE ^ERROR ^MESSAGE STANDARD.
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^THERE ARE NO CHANGES TO THE INSTALLATION PROCEDURES FOR ^^BATCON\\ VERSION 13.
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^^BATCON\\ VERSION 13 RUNS ON ALL SUPPORTED MONITORS AND HAS BEEN EXPLICITLY TESTED USING THE 6.02, 6.02^A, AND 6.03 MONITORS ON ^^KA-10, KI-10, \\AND ^^KL-10\\ PROCESSORS.
^IT HAS ALSO BEEN TESTED WITH THE ^^MPB\\ COMPONENTS DISTRIBUTED ON THE ^NOVEMBER, 1974 RELEASE TAPE, WHICH WAS THE DATE OF RELEASE OF ^^BATCON\\ VERSION 12.
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<NOTE
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^PRIOR TO 6.03, ^BATCH JOBS WERE DETERMINED BY THE MONITOR IF THE CONTROLLING JOB WAS "^^BATCON\\".
^THIS HAS BEEN CHANGED IN 6.03 SINCE THE OLD METHOD WAS COSTLY AND PRONE TO ERRORS.
6.03 USES 1^B2 IN THE ^^OPEN\\ BLOCK OF A ^^PTY\\ TO INDICATE JOBS LOGGING IN ON THAT ^^PTY\\ ARE ^BATCH ^JOBS.
^^BATCON\\ VERSION 12 DOES NOT SET THIS INDICATOR AND HENCE, JOBS RUN UNDER IT ON 6.03 MONITORS WILL NOT HAVE THE "^BATCH ^BIT" SET FOR THEM.
^THIS IS MENTIONED HERE SO THAT USERS ARE ENCOURAGED TO INSTALL ^^BATCON\\ VERSION 13 BEFORE INSTALLING 6.03 OR AT LEAST WARN USERS OF A POTENTIAL PROBLEM.
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^^BATCON\\ IS DOCUMENTED IN THE FOLLOWING NOTEBOOKS:
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1.##^NOTEBOOK#10#-^BATCON ^FUNCTIONAL ^SPECIFICATION
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2.##^NOTEBOOK##3#-UNDER ALL SECTIONS OF THAT NOTEBOOK.
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2.0##<EXTERNAL <CHANGES
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^THE CONFUSION CAUSED BY ^^SPRINT-10\\ NOT SUPRESSING TRAILING BLANKS IN THE ^^CTL\\ FILE HAS BEEN RESOLVED.
^^BATCON\\ WILL SUPRESS TRAILING BLANKS ON LINES DESTINED FOR THE MONITOR COMMAND DECODER.
^HOWEVER, TRAILING BLANKS ON USER LEVEL INPUT LINES WILL CONTINUE TO BE SENT.
^THIS SHOULD ALLEVIATE ANY PROBLEMS ENCOUNTERED WITH VERSION 12.
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^OLD AND ^NEW ^^LOG\\ FILES ARE SEPARATED BY A ^FORM-^FEED INSTEAD OF THE ^CARRIAGE ^RETURN-^LINE ^FEED PAIR.
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^TO ALLOW THE USER TO TRAP ^TIME ^LIMIT ^EXCEEDED ERRORS IN THE CONTROL FILE, A NEW RESERVED LABEL HAS BEEN ADDED.
^^%TERR::\\ MAY BE USED TO SPECIFY THE POINT IN THE ^CONTROL FILE WHERE CONTROL IS TO BE TRANSFERED IF THAT ERROR OCCURS.
^THIS LABEL FOLLOWS THE SAME RULES OF PRECEDENCE AS ^^%ERR::\\ AND ^^%CERR::\\ WITH RESPECT TO ^^%FIN::\\.
^IF ^^%TERR::\\ IS FOUND, THE ^^%EXTRA\\ (ASSEMBLY PARAMETER) TIME IS GIVEN BUT THE ^^CLOSE/DUMP\\ PAIR IS ^^NOT\\ SENT, ALLOWING ^^.REENTER\\ TO BE USED FOR PROGRAM CLEANUP BY INTELLIGENT JOBS.
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3.0##^^KNOWN BUGS AND DEFICIENCIES\\
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^NONE.
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4.0##<INSTALLATION <INSTRUCTIONS
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^SEE <BATCON.CTL FOR INSTALLATION INSTRUCTIONS.
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5.0##<INTERNAL <CHANGES
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^A BUG WHICH CAUSED ^^BATCON\\ TO REPORT ANY ^INPUT ERROR ON THE ^^CTL\\ FILE AS ^END ^OF ^FILE HAS BEEN CORRECTED.
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^THE COMPUTATION OF THE ^^AFTER\\ PARAMETER FOR ^^REQUEUE\\ WAS NOT QUITE RIGHT.
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^IF THE ^P,^PN SPECIFIED IN THE ^PATH WAS NOT THE SAME AS THE ^P,^PN TO ^^LOGIN\\ THE JOB AS BUT NO ^^SFD\\ LEVELS WERE SPECIFIED, THE ^P,^PN IN THE ^PATH WAS IGNORED.
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^THE ACCESS DATE FOR AN ARTIFICALLY PRESERVED ^CONTROL ^FILE WAS NOT BEING SET APPROPRIATELY.
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^A NEW ASSEMBLY OPTION, ^^SPLMBC\\, HAS BEEN IMPLEMENTED.
^THIS SPECIFIES THE NUMBER OF MINUTES (DEFAULT IS 5) BETWEEN CHECKPOINTING OF THE USERS ^^LOG\\ FILE.
^IF IT HAS BEEN LONGER THAN ^^SPLMBC\\ MINUTES SINCE THE USER HAS ADDED SOMETHING TO THE ^^LOG\\ FILE , THE INTERNAL BUFFERS ARE OUTPUTTED AND THE ^^LOG\\ FILE CLOSED.
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^WITH EDIT 477 OF ^^LOGIN\\, ^^LOGMAX\\ CAN BE ENFORCED.
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^^BATCON\\ VERSION 13 DOES FEWER ^^UUO\\S IN DETERMININING THE ^TIME
^STAMP TO PLACE IN THE USERS ^^LOG\\ FILE.
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^IF THE ^SYSTEM HAS ^^PSISER\\, ^^BATCON\\ CONNECTS TO THE INTERRUPT
SYSTEM FOR ^^TTY\\ ^INPUT ^READY INTERRUPTS, THUS AVOIDING MANY ^^SKPINL\\S
TO POLL THE OPERATOR.
^^BATCON\\ 13 CONTINUES TO DO THESE ^^SKPINL\\S IF THE INSTALLATION DOES
NOT HAVE ^^PSISER\\ LOADED.
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<WARNING
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^^MCO\\ _#5735 IS REQUIRED FOR 6.02 MONITORS WITH ^^PSISER\\.
^THE ^^MCO\\ FIXES A BUG IN THE ^^HIBER UUO\\ WHICH COULD GIVE A ^DOUBLE ^SKIP RETURN IF THERE IS A PENDING ^^PSI\\ INTERRUPT.
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^IN ^^UUOCON\\ AT ^^HIBPSI:-1\\
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CHANGE###^^JRST CPOPJ1_#_#\\
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##TO#####^^POPJ P,\\
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^THE DEFAULT VALUE FOR THE ^^CORE\\ ^COMMAND IS NOW 1.5 TIMES THE AMOUNT OF AVAILABLE MEMORY INSTEAD OF JUST 1.0 TIMES.
^THIS CHANGE WAS MADE TO BE CONSISTANT WITH THE DEFAULTS USED BY ^^GALAXY-10\\.
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^A SECURITY HOLE ALLOWING A MALICIOUS USER TO LOGIN AS 1,2 HAS BEEN PLUGGED.
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[^END OF ^^BAT13.DOC\\]