--- /dev/null
+/
+/ COPYRIGHT 1971, DIGITAL EQUIPMENT CORPORATION,
+/ MAYNARD, MASSACHUSETTS 01754
+/ UTILITY SUBROUTINE PACKAGE
+/ VERSION UTILTY.V7A (OCTOBER 26,1971)
+/ (VERS. CHG. V07 TO V7A 4/25/77 MH)
+/
+ ENTRY OPEN /INITIALIZING AND FLAG SETTING ROUTINE
+ ENTRY GENIO
+ ENTRY EXIT /EXIT TO DISK MONITOR SYSTEM
+ ENTRY ERROR
+ ENTRY CKIO /USELESS ROUTINE
+ OPDEF KRS 6034
+ OPDEF KCC 6032
+ OPDEF RIF 6224
+ OPDEF TADI 1400
+ OPDEF DCAI 3400
+ OPDEF JMSI 4400
+ OPDEF JMPI 5400
+/ CARD READER IOT'S
+ OPDEF RCSE 6672
+ OPDEF RCSP 6671
+ OPDEF RCSF 6631
+ OPDEF RCRA 6632
+/LINE PRINTER IOT'S
+ OPDEF LLB 6666
+ OPDEF LSF 6661
+
+ LAP
+
+U17, 17 /*** MUST BE FIRST LOC IN PAGE ***
+
+IOER, 1117
+ 0522 /"IOER" ERROR
+GENIO, BLOCK 2 /GENERAL INPUT/OUTPUT ROUTINE
+ DCA 7 /SAVE ENTRY AC
+GENLP, TAD 7
+ RTL
+ RTL
+ RAL
+U200, AND U17
+ TAD JMPITB
+ DCA DSPACH /INDEX JUMP TABLE BY DEVICE NUMBER
+ TAD U200
+ KRS
+ TAD UM203
+ SNA CLA
+ KSF /CHECK FOR ^C ON TELETYPE
+DSPACH, NOP /NO ^C - DISPATCH TO I/O ROUTINE
+ CALL 0,EXIT
+
+JMPITB, JMPI DEVTAB
+DEVTAB, TTYOUT
+ HSPOUT
+ IOERR
+ GENOUT
+ TTYIN
+ HSRIN
+ IOERR
+ GENIN
+ IOERR
+ IOERR
+ IOERR
+ IOERR
+ IOERR
+ IOERR
+ IOERR
+ IOERR
+
+HSPOUT, PSF
+ JMP GENLP
+ TAD 7
+ PLS
+GENRTN, CLA
+ RETRN GENIO
+
+HSRIN, ISZ T1
+ JMP HSRSF
+ TAD U336 /TIME OUT-PRINT '^'
+ TLS
+HLP, KSF
+ JMP HLP
+ AND U200 /GET 200 INTO AC
+ KRS /READ THE CHAR.
+ TAD UM203
+ SZA CLA /IS IT CONTROL C?
+ KCC /NO-CLEAR FLAG
+ RFC /USER TYPED-TICKLE RDR-FALL THRU RFC
+HSRSF, RSF
+ JMP GENLP
+ DCA T1
+ RRB RFC
+ JMP GENRTN#
+U336, 336
+T1, 0
+
+UM203, -203
+
+
+ PAGE
+\fU377, 377 /MUST BE FIRST LOC IN THIS PAGE
+GENIN, 6201
+ TADI IHNDLR
+ SNA CLA /OPEN INPUT FILE?
+ JMP IOERR /NO
+ 6202
+ JMS I FICHAR /GET A CHAR
+ JMP IOERR /INPUT ERROR
+UU200, AND U377
+GRTN2, RETRN GENIO
+
+GENOUT, 6201
+ TADI OHNDLR
+ SNA CLA /OPEN OUTPUT FILE?
+ JMP IOERR /NO
+ 6202
+ TAD 7 /GET CHAR TO BE OUTPUT
+ AND U377
+ JMS I FOCHAR /PUT A CHARACTER
+ JMP IOERR /OUTPUT ERROR
+ JMP GRTN2
+
+IHNDLR, 122 /***ALL THESE LOCATIONS ARE VERY VOLATILE!! ***
+FICHAR, 606 /*******
+OHNDLR, 121 /*******
+FOCHAR, 651 /******************
+BATIN, 5400 /**************************
+BATOUT, 7400 /**************************
+BATVFY, 5600 /**************************
+BATVAL, -2214 /**************************
+
+/
+/ INITIALIZING SUBROUTINE CALLED BY FORTRAN
+/ CLEARS FLOATING AC AND SETS FLAGS
+/
+OPEN, BLOCK 2
+ PLS
+ RFC
+ CALL 0,CLEAR
+CDFX, 6201
+ DCAI IHNDLR
+ DCAI OHNDLR /ZERO DEVICE-INDEPENDENT IO FLAGS
+ DCA TTFLAG /BEGINNING OF LINE
+ TADI (7777 /GET BATCH FIELD
+ AND (70
+ TAD CDFX /MAKE A CDF
+ DCA CDFB
+ TADI (7777 /GET BATCH RUNNING BIT
+ RAL
+ SMA CLA
+ JMP IOERR /BATCH NOT RUNNING
+CDFB, HLT
+ TADI BATVFY /CHECK CRUCIAL LOCATION
+ TAD BATVAL /FOR RL'S INITIALS
+ SZA CLA
+ JMP IOERR
+ TAD CDFB
+ IAC /MAKE A CIF
+ DCA CIFB1
+ TAD CIFB1
+ DCA CIFB2
+ RIF /MAKE A CDF TO HERE
+ TAD CDFX
+ DCA CDFH
+ RETRN OPEN
+
+
+TTYIN,
+CIFB1, 0 /CIF BATCH
+ JMSI BATIN /GET A CHAR
+ JMP TTEOF1 /EOF
+ DCA 7 /SAVE KEYBOARD CHAR
+ TAD 7
+ TAD (-"$ /IS IT A "$"?
+ SZA CLA
+ JMP TTFUJ1 /NO
+ ISZ TTFLAG /WAS LAST CHAR <CR>?
+ JMP TTYEOF /YES - EOF
+TTFUJ1, CLA CMA
+ DCA TTFLAG /RESET FLAG FOR NON <CR>
+ TAD 7
+ TAD (-215
+ SNA CLA
+ DCA TTFLAG /CLEAR FLAG TO INDICATE <CR>
+TYRTN, TAD 7
+ JMP GRTN2 /RETURN WITH CHAR IN AC
+
+TTFLAG, 0 /INITIALLY AT BEGINNING OF LINE
+
+TTYEOF, 6201 /CDF
+ TADI (7777 /GET WORD FROM FIELD 0
+ RTR
+ CLL CML RTL /SET BIT 10
+ DCAI (7777 /REPLACE IT
+CDFH, 0 /CDF HERE
+TTEOF1, JMP IOERR /WHAT TO DO?
+
+
+TYPE, 0
+ TAD 7
+CIFB2, 0 /CIF BATCH
+ JMSI BATOUT /SEND A CHAR TO THE BATCH OUTPUT STREAM
+ JMPI TYPE
+
+TTYOUT, JMS TYPE
+ JMP GRTN2
+
+IOERR, CALL 1,ERROR
+ ARG IOER
+
+
+ PAGE
+\f
+PMESG, MESG
+MESG, 7777
+ 7777
+ 4005
+ 2222
+ 1722
+ 4001
+ 2440
+ 1417
+ 0340
+LIT7, 0007
+
+ERROR, BLOCK 2 /ERROR PROCESSOR
+U7600, 7600
+ TAD ERROR
+ DCA TEM1
+TEM1, NOP /SET DATA FIELD OF "CALL ERROR"
+ TADI ERROR#
+ DCA TEM3
+ INC ERROR#
+E60, CLA CMA CML /CML IS WINDOW DRESSING
+ TADI ERROR#
+ DCA 10
+ INC ERROR#
+TEM3, NOP /DATA FIELD OF MESSAGE&ENTRY POINT
+ DCA CKIO /ZERO "FATAL ERROR" FLAG
+ TADI 10
+ RAL
+ SZL /NON-FATAL BIT ON?
+ ISZ CKIO /YES - SET "FATAL FLAG" TO NON-FATAL
+ CLL RAR /STRIP NON-FATAL BIT FROM MESSAGE
+ DCA MESG
+ TADI 10 /SECOND WORD OF MESSAGE
+ DCA MESG#
+ TADI 10
+ DCA TEM1
+ TADI 10
+ DCA TEM3 /CALLING ADDRESS
+ TAD PMESG
+ DCA TEM2
+
+ERLP, TAD I TEM2
+ RTR
+ RTR
+ RTR
+ JMS PR6BIT
+ TAD I TEM2
+ JMS PR6BIT
+ INC TEM2
+ JMP ERLP
+
+PRLOC, TAD TEM1
+ RTR
+ RTR
+ JMS ERTTY /PRINT CALLING FIELD
+ TAD (-4
+ DCA TEM2
+NUMLP, TAD TEM3
+ RTL
+ RAL
+ DCA TEM3
+ TAD TEM3
+ JMS ERTTY
+ ISZ TEM2
+ JMP NUMLP
+ TAD (215
+ DCA 7
+ JMS TYPE
+ CLA CLL CMA RTL
+ JMS TYPE
+ TAD CKIO /GET THE FATAL ERROR FLAG
+ SNA CLA /WHADDOWEDO??
+ JMP EXITX
+ RETRN ERROR /HE SAYS ITS NON-FATAL - LET HIM HANDLE IT
+
+ERTTY, 0 /DIGIT PRINTING ROUTINE
+ RAL
+ AND LIT7
+ TAD E60
+ JMS PR6BIT
+ JMP I ERTTY
+
+PR6BIT, 0 /6BIT TO 8BIT CONVERTOR
+ AND (77
+ SNA
+ JMP PRLOC /MESSAGE OVER
+ TAD (7740
+ SPA
+ TAD (100
+ TAD (240
+ CALL 0,GENIO /LOOK FOR ^C WHILE TYPING
+ JMP I PR6BIT
+
+/
+/EXIT TO DISK MONITOR SYSTEM
+/
+EXIT, BLOCK 2
+EXITX, CALL 0,CKIO
+ 6203
+ JMPI U7600 /RETURN TO MONITOR
+
+CKIO, 0
+TEM2, 0 /DUMMY SUBROUTINE TO WAIT FOR I/O COMPLETE
+ RETRN CKIO
+
+
+ END
+\f
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