.PAPER SIZE 60,90 .NOJUSTIFY .LEFT MARGIN 16 .TITLE################^^A-RCB-0065-SP-2\\ .SPACING 1 .NOFILL .TAB STOPS 20,72 .CENTER ^^A-RCB-0065-SP-2 .BLANK .CENTER SUPPORT PROGRAMS FOR HP2640A TERMINAL .BLANK .CENTER HPE USER'S GUIDE .BLANK 2 .CENTER TABLE OF CONTENTS PAGE\\ .BLANK 1 .TAB STOPS 20,74 1. ^^INTRODUCTION 2 .BLANK 2. OPERATING PROCEDURE 3 .BLANK 1 2.1 INITIATING HPE 3 .BLANK 1 2.2 HPE COMMAND STRINGS 3 .BLANK 1 ####2.2.1 INPUT-FILE SPECIFIER 3 ####2.2.2 OUTPUT-FILE SPECIFIER 5 .BLANK 1 2.3 HPE OPERATION 6 .BLANK 1 3. ERROR MESSAGES 9 .BLANK 1 3.1 COMMAND STRING ERRORS 9 .BLANK 1 3.2 OPERATING ERRORS 10 .BLANK 1 4. REFERENCES 11 .BLANK 2 .CENTER LIST OF TABLES .BLANK 2 .TAB STOPS 20,28,74 TABLE 1 DEFAULT ELEMENTS FOR INPUT-FILE SPECIFIER 4 .BLANK 1 TABLE 2 INPUT-FILE SWITCHES 4 .BLANK 1 TABLE 3 DEFAULT ELEMENTS FOR OUTPUT-FILE SPECIFIER 5 .BLANK 1 TABLE 4 HPE CONTROL KEYS 7 .PAGE .TAB STOPS 16,26,36,46,56 .FILL .PARAGRAPH 0 1. ^^INTRODUCTION\\ .PARAGRAPH 10 ^THE ^HEWLETT-^PACKARD ^EDITOR (^^HPE\\) IS A PROGRAM THAT OPERATES WITH THE ^^RSX-11D\\ EXECUTIVE IN THE ^DYNAMIC ^ANALYSIS ^FACILITY TO SUPPORT THE BLOCK MODE EDITING CAPABILITY OF THE ^HEWLETT ^PACKARD MODEL ^^2640A\\ TERMINAL [1]. ^FILES CONTAINING TEXT OR DATA MAY BE PREPARED ON THE TERMINAL AND STORED ON A MASS STORAGE DEVICE IN THE DIGITAL COMPUTER SYSTEM. ^THE FILE MAY BE SUBSEQUENTLY EDITED BY SENDING IT, A BLOCK AT A TIME, TO THE TERMINAL, MAKING THE REQUIRED CHANGES, AND SENDING IT BACK TO THE MASS STORAGE DEVICE. .PARAGRAPH 10 ^THE BLOCK MODE CAPABILITY OF THE TERMINAL IS VERY USEFUL IN THE PREPARATION OF TABLES, DOCUMENTATION OF SIMULATION MODULES, AS WELL AS PREPARATION OF ^^MACRO-11\\ AND ^^FORTRAN\\ PROGRAMS. ^DOCUMENTATION OF SIMULATION MODULES IS ENHANCED WHEN USING THE ^^H.P. \\MODEL ^^2640A\\ TERMINAL WITH THE AVAILABILITY OF A MATHEMATICAL, A LINE DRAWING AND A ROMAN SUBSCRIPT CHARACTER SET. ^WITHOUT THE BLOCK EDITING FEATURE OF THE TERMINAL THE TWO SPECIAL CHARACTER SETS ARE VERY DIFFICULT TO USE. ^FOR EXAMPLE A DIFFERENTIAL EQUATION USUALLY OCCUPIES ABOUT THREE LINES OF TYPE AND EDITING THEM AS THREE INDEPENDENT LINES IS VERY DIFFICULT. .PARAGRAPH 10 ^ONCE A FILE HAS BEEN PREPARED AND STORED ON A MASS STORAGE DEVICE, IT MAY BE PRINTED BY USING THE ^HEWLETT ^PACKARD ^PRINTER (^^HPP)[2]. ^^HPP\\ IS A PROGRAM THAT WILL READ A FILE CONTAINING CHARACTER CODES FROM THE ^^H.P. 2640A\\ TERMINAL AND PRINT APPROPRIATE SYMBOLS ON A ^VERSATEC PRINTER/PLOTTER MODEL ^^1100A\\ [3]. .PAGE .PARAGRAPH 0 2. ^^OPERATING PROCEDURE\\ .PARAGRAPH 0 2.1 ^^INITIATING HPE\\ .PARAGRAPH 10 ^^HPE\\ IS INITIATED USING CONVENTIONAL METHODS FOR ^^RSX-11D\\ UTILITY PROGRAMS AS DESCRIBED IN SECTION 1.2 OF [4]. ^THE THREE METHODS ARE: .NOFILL .BLANK 1 ^^MCR>HPE HPE>\\COMMAND STRING<^^CR\\> .BLANK OR .BLANK ^^MCR>HPE\\ COMMAND STRING<^^CR\\> .BLANK OR FOR A PRIVILEGED USER .BLANK 1 ^^MCR>RUN ...HPE/UIC=\\[UIC]<^^ALT\\> ^^HPE>\\COMMAND STRING<^^CR\\> .FILL .PARAGRAPH 0 2.2 ^^HPE COMMAND STRINGS\\ .PARAGRAPH 10 ^^HPE\\ ADHERES TO ^^RSX-11D\\ CONVENTIONS FOR COMMAND STRINGS AS OUTLINED ON PAGE 3-15 OF [5]. ^A COMMAND STRING TO ^^HPE\\ IS OF THE FORM: .BLANK 1 .NOFILL OUTPUTFILE=INPUTFILE/SW .BLANK .FILL ^THE ONLY MANDATORY PART OF THE COMMAND STRING IS ONE FILE SPECIFIER. ^WHEN ONE FILE SPECIFIER IS GIVEN WHICH IS PRECEDED BY AN = SIGN, THEN THE SPECIFIER IS ASSUMED TO BE FOR AN INPUT FILE. ^IF THE FILE CANNOT BE FOUND, AN ERROR MESSAGE IS PRINTED. ^IF ONLY ONE FILE SPECIFIER IS GIVEN WITHOUT AN = SIGN, THEN A SEARCH IS PERFORMED TO SEE IF IT EXISTS. ^IF THE FILE DOES EXIST, IT IS USED AS THE INPUT FILE AND AN OUTPUT FILE WITH A DEFAULT FILE SPECIFIER IS OPENED. ^IF THE FILE DOES NOT EXIST, ^^HPE\\ ASSUMES THAT A NEW FILE IS BEING CREATED AND OPENS AN OUTPUT FILE WITH THE SPECIFIER GIVEN BUT DOES NOT OPEN AN INPUT FILE. .PARAGRAPH 0 2.2.1 ^^INPUT-FILE SPECIFIER\\ .PARAGRAPH 10 ^THE FULL INPUT-FILE SPECIFIER IS: .BLANK 1 .NOFILL DEV:[UFD]FILENAME.TYPE;VERSION/SW .BLANK .FILL ^IT IS MANDATORY FOR FILENAME AND TYPE TO BE GIVEN. ^THE DEFAULT VALUES FOR THE REMAINING ELEMENTS ARE GIVEN IN ^TABLE 1. ^THE POSSIBLE VALUES FOR SW ARE GIVEN IN ^TABLE 2. .PAGE .NOFILL ^TABLE 1 ^^DEFAULT ELEMENTS FOR INPUT-FILE SPECIFIER\\ .BLANK 2 .TAB STOPS 35 ^^ELEMENT DEFAULT VALUE\\ .BLANK 1 .TAB STOPS 18,30 DEV: ^^SY0:\\ THE SYSTEM DEVICE. .BLANK 1 [UFD] THE ^^UIC\\ CURRENTLY IN EFFECT. .BLANK 1 FILENAME NO DEFAULT VALUE. ^THE FILENAME MUST BE GIVEN. .BLANK 1 .TYPE NO DEFAULT VALUE. .BLANK 1 ;VERSION THE HIGHEST-NUMBERED EXISTING VERSION. .BLANK 1 /SW ^^/NL:32.\\ 32 LINES ARE READ FROM THE INPUT FILE AND WRITTEN TO THE TERMINAL AT EACH REQUEST. .BLANK 3 ^TABLE 2 ^^INPUT FILE SWITCHES\\ .BLANK 2 .TAB STOPS 35 ^^SWITCH MEANING\\ .TAB STOPS 18,30 .BLANK 1 ^^/NL:\\N. SET THE NUMBER OF LINES PER BLOCK TO N. I.E. EACH TIME A BLOCK IS REQUESTED, N LINES ARE SENT TO THE TERMINAL. .BLANK 1 ^^/SR\\ INITIATE A SEARCH. .PAGE .FILL .TAB STOPS 16,26,36,46,56 .PARAGRAPH 0 2.2.2 ^^OUTPUT-FILE SPECIFIER\\ .PARAGRAPH 10 ^THE FULL OUTPUT-FILE SPECIFIER IS: .BLANK 1 .NOFILL DEV:[UFD]FILENAME.TYPE;VERSION .BLANK 1 .FILL ^IT IS NOT MANDATORY FOR ANY PART OF THE OUTPUT-FILE SPECIFIER TO BE GIVEN. ^WHEN AN ELEMENT OF THE SPECIFIER IS NOT GIVEN IT ASSUMES THE DEFAULT VALUE GIVEN IN TABLE 3. .NOFILL .BLANK 2 ^TABLE 3 ^^DEFAULT ELEMENTS FOR OUTPUT-FILE SPECIFIER\\ .BLANK 2 .TAB STOPS 35 ^^ELEMENT DEFAULT VALUE\\ .TAB STOPS 18,30 .NOFILL .BLANK 1 DEV: ^^SY0:\\ THE SYSTEM DEVICE. .BLANK 1 [UFD] THE ^^UIC\\ CURRENTLY IN EFFECT. .BLANK 1 FILENAME THE FILENAME OF THE INPUT-FILE SPECIFIER. .BLANK 1 .TYPE THE ^^.TYPE\\ OF THE INPUT-FILE SPECIFIER. .BLANK 1 ;VERSION ONE HIGHER THAN THE HIGHEST-NUMBERED EXISTING VERSION. .PAGE .FILL .TAB STOPS 16,26,36,46 .PARAGRAPH 0 2.3 ^^HPE OPERATION\\ .PARAGRAPH 10 ^ONCE ^^HPE\\ PROMPTS AND A VALID COMMAND STRING IS ENTERED, ^^HPE\\ OPENS THE SPECIFIED FILES AND PRINTS THE FOLLOWING MESSAGE: .BLANK 1 .NOFILL ^^HPE -- ENABLE BLOCK MODE.\\ .BLANK 1 .FILL ^THE USER MUST THEN DEPRESS THE ^^BLOCK MODE\\ LATCHING KEY IN THE EDIT AND CONTROL GROUP OF KEYS ON THE TERMINAL. ^THE PROGRAM SENSES THE CHANGE TO BLOCK MODE, ISSUES A ^^RESET TERMINAL\\ CONTROL FUNCTION, SETS THE TAB STOPS AT EVERY NINTH CHARACTER POSITION AND THEN EITHER PRINTS THE FIRST BLOCK OF THE USER'S FILE OR THE FOLLOWING MESSAGE IF A NEW FILE IS TO BE CREATED (ONE FILE SPECIFIER WAS GIVEN AND THE FILE DID NOT EXIST). .NOFILL .BLANK 1 ^^HPE -- CREATING NEW FILE\\ .BLANK 1 .FILL ^THIS MESSAGE SHOULD BE DELETED FROM THE TERMINAL BEFORE TEXT IS ENTERED OR IT WILL BECOME PART OF THE OUTPUT FILE. ^THE USER THEN ENTERS OR CHANGES THE TEXT AS DESIRED USING THE EDIT AND CONTROL FEATURES OF THE TERMINAL [1]. ^WHEN FINISHED WITH THE BLOCK OF TEXT IN THE TERMINAL, THE USER MAY SEND IT BACK TO THE MASS STORAGE DEVICE USING THE ^^ENTER\\ KEY OR ONE OF THE USER-DEFINEABLE SPECIAL FUNCTION KEYS. ^THE CONTROL FUNCTION FOR THESE KEYS ARE GIVEN IN ^TABLE 4. ^NOTE: THE USER DEFINEABLE KEYS REQUIRE THAT THE ^^CNTL\\ KEY BE HELD DEPRESSED AND THEN THE SPECIAL FUNCTION KEY BE DEPRESSED. .PARAGRAPH 10 ^WHEN ALL TEXT IN THE INPUT FILE HAS BEEN READ AND TRANSFERRED TO THE OUTPUT FILE OR THE F1 FUNCTION KEY HAS BEEN USED, THE MESSAGE .BLANK 1 .NOFILL ^^HPE --DISABLE BLOCK MODE AND AUTO LINE FEED\\ .BLANK .FILL IS SENT TO THE TERMINAL. ^WHEN ^^HPE\\ SENSES THAT BLOCK MODE IS TURNED OFF (^^BLOCK MODE\\ KEY RELEASED) AND AUTO LINE FEED IS TURNED OFF (^^AUTO LF\\ KEY RELEASED), A TASK EXIT IS PERFORMED FROM ^^HPE\\ AND THE ^^MCR\\ PROMPT WILL APPEAR ON THE TERMINAL. .PAGE .PARAGRAPH 0 ^TABLE 4 ^^HPE CONTROL KEYS\\ .BLANK 2 .TAB STOPS 16,40 ^^KEY FUNCTION\\ .BLANK 2 .LEFT MARGIN 28 .TAB STOPS 16,28 .INDENT -12 ^^ENTER\\ ^TEXT STORED IN THE TERMINAL IS TRANSFERRED TO THE OUTPUT FILE AND THE NEXT BLOCK IS WRITTEN TO THE TERMINAL. ^IF THE USER IS CREATING A NEW FILE , THE MESSAGE .BLANK 1 .NOFILL ^^HPE -- CREATING NEW FILE\\ .BLANK 1 .FILL IS WRITTEN AFTER EACH BLOCK IS TRANSFERRED TO THE OUTPUT FILE. .BLANK 1 .INDENT -12 ##F1 ^^STOP\\. ^EXECUTION OF ^^HPE\\ IS STOPPED. ^THE FILES ARE CLOSED AND THE MESSAGE .BLANK 1 .NOFILL ^^HPE -- DISABLE BLOCK MODE AND AUTO LINE FEED\\ .BLANK 1 .FILL IS WRITTEN TO THE TERMINAL. ^WHEN THE USER HAS TURNED BLOCK MODE AND AUTO LINE FEED OFF, THE ^^MCR\\ PROMPT IS GIVEN. .BLANK 1 .INDENT -12 ##F2 ^^EXIT\\. ^THIS FUNCTION IS A CONVENIENCE. ^THE TEXT STORED IN THE TERMINAL IS TRANSFERRED TO THE OUTPUT FILE AND THEN ALL REMAINING TEXT IN THE INPUT FILE IS TRANSFERRED TO THE OUTPUT FILE DIRECTLY. .BLANK 1 .INDENT -12 ##F3 ^^SAVE\\. ^TEXT STORED IN THE TERMINAL IS TRANSFERRED TO THE OUTPUT FILE AND THE TERMINAL'S MEMORY IS CLEARED BUT THE NEXT BLOCK IS NOT READ FROM THE INPUT FILE. .BLANK 1 .INDENT -12 ##F4 ^^GET\\. ^THIS FUNCTION WILL INITIATE THE TRANSFER OF A BLOCK OF DATA FROM THE INPUT FILE TO THE TERMINAL. ^USING F3 IN CONJUNCTION WITH THIS KEY, PRODUCES THE SAME EFFECT AS USING THE ^^ENTER\\ KEY. .BLANK 1 .INDENT -12 ##F5 ^^SEARCH\\. ^THIS KEY INITIATES THE SEARCH ROUTINE. ^TEXT STORED IN THE TERMINAL IS TRANSFERRED TO THE OUTPUT FILE AND THE MESSAGE .BLANK 1 .NOFILL ^^HPE -- RESET THE TERMINAL, WRITE PHRASE AND DEPRESS ENTER KEY\\ .BLANK 1 .FILL IS WRITTEN TO THE TERMINAL. ^ONCE THE PHRASE IS FOUND, THE LINE CONTAINING THE PHRASE AND SUCCESSIVE LINES TO MAKE ONE BLOCK OF TEXT ARE WRITTEN TO THE TERMINAL. ^IF THE PHRASE IS NOT FOUND, THE FOLLOWING IS WRITTEN TO THE TERMINAL: .BLANK 1 .NOFILL ^^HPE -- PHRASE WAS NOT FOUND.\\ #######^^DISABLE BLOCK MODE AND AUTO LINE FEED.\\ .BLANK 1 .FILL AND A PROGRAM RE-START IS EXECUTED. .BLANK 1 .INDENT -12 ##F8 ^^KILL\\. ^THIS COMMAND CAUSES A PROGRAM RE-START. ^THE NEWLY CREATED OUTPUT FILE IS DELETED, A MESSAGE REQUESTING ^^BLOCK MODE\\ BE TURNED OFF IS GIVEN, AND WHEN BLOCK MODE IS TURNED OFF, A PROMPT IS GIVEN. ^IF ^^HPE\\ WAS STARTED USING THE FIRST METHOD IN SECTION 2.1, THE ^^MCR\\ PROMPT IS GIVEN. ^IF STARTED BY ONE OF THE OTHER METHODS, THEN THE ^^HPE\\ PROMPT IS GIVEN. .PAGE .LEFT MARGIN 16 .TAB STOPS 16,26,36,46 .PARAGRAPH 0 3. ^^ERROR MESSAGES .PARAGRAPH 0 3.1 COMMAND STRING ERRORS\\ .PARAGRAPH 10 ^COMMAND STRING ERRORS ARE DETECTED DURING INTERPRETATION OF THE COMMAND STRING TYPED BY THE USER IN RESPONSE TO THE ^^HPE>\\ PROMPT. ^WHEN AN ERROR IS DETECTED, A MESSAGE IS PRINTED ON THE TERMINAL AND THE PROMPT IS PRINTED AGAIN TO PERMIT THE USER TO TYPE A CORRECT COMMAND STRING. ^THE ERROR MESSAGES AND SOME POSSIBLE CAUSES ARE LISTED BELOW. .BLANK 1 .LEFT MARGIN 26 .PARAGRAPH -10 ^^HPE -- OPEN FAILURE FOR INPUT FILE\\ .BREAK ^THE USER SPECIFIED AN INPUT FILE THAT THE SYSTEM COULD NOT FIND. .PARAGRAPH -10 ^^HPE -- OPEN FAILURE FOR OUTPUT FILE\\ .BREAK ^THE SPECIFIED OUTPUT FILE COULD NOT BE OPENED. ^THIS CAN BE CAUSED BY A WRITE LOCKED DEVICE. .PARAGRAPH -10 ^^HPE -- SYNTAX ERROR\\ .BREAK ^THE SYNTAX OF THE COMMAND STRING IS INCORRECT. .PARAGRAPH -10 ^^HPE -- DIRECTORY NOT FOUND\\ .BREAK ^THIS MESSAGE CAN BE CAUSED BY ATTEMPTING TO OPEN A FILE ON A DEVICE THAT HAS NOT BEEN MOUNTED OR DOES NOT CONTAIN THE SPECIFIED USER FILE DIRECTORY. .PARAGRAPH -10 ^^HPE -- TOO MANY OUTPUT FILES\\ .BREAK ^ONLY ONE OUTPUT FILE SPECIFIER IS PERMITTED. .PARAGRAPH -10 ^^HPE -- TOO MANY INPUT FILES\\ .BREAK ^ONLY ONE INPUT FILE SPECIFIER IS PERMITTED. .PARAGRAPH -10 ^^HPE -- BAD SWITCH\\ .BREAK ^AN INVALID SWITCH HAS BEEN SPECIFIED. ^THE VALID SWITCHES ARE GIVEN IN ^TABLE 2. .PARAGRAPH -10 ^^HPE -- WILD CARDS NOT ALLOWED\\ .BREAK ^AN ASTERISK (*) IS NOT PERMITTED IN A FILE SPECIFIER. .PARAGRAPH -10 ^^HPE -- COMMAND ERROR\\ .BREAK ^AN ^^I/O\\ ERROR HAS OCCURED DURING THE READING OF THE COMMAND LINE FROM THE TERMINAL. .PARAGRAPH -10 ^^HPE -- COMMAND I/O OR NESTING ERROR\\ .BREAK ^AN INDIRECT COMMAND STRING SPECIFIER (@) WAS DETECTED IN THE COMMAND LINE. ^^HPE\\ DOES NOT PERMIT INDIRECT COMMAND FILES. .LEFT MARGIN 16 .PARAGRAPH 0 3.2 ^^OPERATING ERRORS\\ .PARAGRAPH 10 ^ONCE A COMMAND STRING HAS BEEN ENTERED AND THE FILES OPENED, A MESSAGE IS WRITTEN TO THE TERMINAL REQUESTING THE OPERATOR TO SELECT BLOCK MODE. ^IN BLOCK MODE SEVERAL ERRORS CAN OCCUR. ^THE MESSAGES PRINTED, WHEN THEY OCCUR, ARE LISTED BELOW. .BLANK 1 .LEFT MARGIN 26 .PARAGRAPH -10 ^^HPE -- ERROR OCCURED DURING ATTACH .BREAK .INDENT -3 IO.ERR CODE IS:\\N .BREAK ^^HPE\\ WAS UNABLE TO SUCCESSFULLY ATTACH THE TERMINAL. ^SEE PAGE ^I-3 OF [6] FOR AN EXPLANATION OF THE ERROR CODE N. .PARAGRAPH -10 ^^HPE -- WRONG KEY. PLEASE RE-ENTER\\ .BREAK ^A SEQUENCE OF CHARACTER CODES OTHER THAN THOSE GENERATED BY THE CONTROL KEYS GIVEN IN ^TABLE 4 HAS BEEN RECEIVED BY ^^HPE\\. .BLANK 1 .LEFT MARGIN 26 .PARAGRAPH -10 ^^HPE -- EXIT\\ .BREAK .INDENT -3 ^^DISABLE BLOCK MODE AND AUTO LINE FEED.\\ .BREAK ^^HPE\\ HAS RECEIVED THREE INCORRECT CONTROL KEYS. ^SOMETHING IS SERIOUSLY WRONG AND RATHER THAN ATTEMPT TO CORRECT IT WHILE THE TERMINAL IS IN BLOCK MODE, A TASK EXIT WILL BE PERFORMED. .PARAGRAPH -10 ^^HPE -- ERROR OCCURED DURING GET OR PUT OPERATION\\ .BREAK .INDENT #######^^IO.ERR CODE IS:\\N .BREAK ^AN ATTEMPT TO READ OR WRITE A RECORD HAS FAILED AND RETURNED AN ERROR CODE N. ^SEE PAGE ^I-3 OF [6] FOR AN EXPLANATION OF THE ERROR CODE N. .PARAGRAPH -10 ^^HPE -- ERROR OCCURED DURING TERMINAL I-O\\ .BREAK .INDENT -3 ^^IO.ERR CODE IS:\\N .BREAK ^AN ERROR OCCURED WHILE WRITING TO OR READING FROM THE TERMINAL. ^SEE PAGE ^I-3 OF [6] FOR AN EXPLANATION OF THE ERROR CODE N. .PAGE .LEFT MARGIN 16 .PARAGRAPH 0 4. ^^REFERENCES .BLANK .NOFILL [1] "^^2640A INTERACTIVE DISPLAY TERMINAL\\" ^OWNERS ^MANUAL, ^HEWLETT-^PACKARD ^COMPANY, 11000 ^WOLFE ^ROAD, ^CUPERTINO, ^CALIFORNIA. .BLANK 1 [2] "^^HPP USER'S GUIDE\\", ^REACTOR ^CONTROL ^BRANCH ^ENGINEERING ^FILE, ^^A-RCB-0065-SP-3\\ . .BLANK 1 [3] "^^OPERATION AND MAITENANCE MANUAL MATRIX 1100A PRINTER/PLOTTER\\", ^VERSATEC, ^INC., 10100 ^BUBB ^ROAD, ^CUPERTINO, ^CALIFORNIA, ^JUNE 1973. .BLANK 1 [4] "^^RSX-11D UTILITY PROGRAMS PROCEDURES MANUAL\\", ^^DEC-11-OXDUA-B-D\\, ^DIGITAL ^EQUIPMENT ^CORPORATION, ^MAYNARD, ^MASSACHUSETTS. .BLANK 1 [5] "^^RSX-11D USER'S GUIDE\\", ^^DEC-11-OXDUA-B-D\\, ^DIGITAL ^EQUIPMENT ^CORPORATION, ^MAYNARD, ^MASSACHUSETTS. .BLANK [6] "^^IAS/RSX-11 I/O OPERATIONS REFERENCE MANUAL\\", ^^DEC-11-OIORA-A-D\\, ^DIGITAL ^EQUIPMENT ^CORPORATION, ^MAYNARD, ^MASSACHUSETTS.