+/ MODIFIED SILENT VERSION, HACHTI 2008
+/ KERMIT FOR DEC 12-BIT MACHINES
+
+/ LAST EDIT: 06-SEP-1990 11:00:00 CJL
+
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+/ COPYRIGHT (C) 1989, 1990 BY THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF
+/ NEW YORK.
+
+
+
+/ PERMISSION IS GRANTED TO ANY INDIVIDUAL OR INSTITUTION TO COPY OR USE THIS
+/ DOCUMENT AND THE PROGRAM(S) DESCRIBED IN IT, EXCEPT FOR EXPLICITLY COMMERCIAL
+/ PURPOSES.
+\f/ EDIT HISTORY. /014 CJL
+
+/ 052 06-SEP-1990 BUG FIX. CHARLES LASNER (CJL)
+
+/ SENDING A FILE WHICH EXACTLY FILLS THE LAST DATA PACKET AT THE
+/ END OF THE FILE WILL CAUSE THE PACKET TO BE SENT TWICE. THE
+/ ROUTINE DIDN'T CHECK FOR AN EMPTY OUTPUT BUFFER AT EOF.
+
+/ 051 29-AUG-1990 BUG FIX. CJL
+
+/ PDP-8/A NOT IDENTIFIED CORRECTLY IN CPUID ROUTINE. THE UPDATED
+/ PC IS WHAT IS LOADED INTO THE AC WHEN 7016 IS EXECUTED ON THE
+/ KK-8/A CPU. THE ROUTINE WAS CHECKING FOR THE NON-UPDATED VALUE.
+/ ALSO NEW DOCUMENTATION FOR PRE-CLEARING MEMORY FOR BENEFIT OF
+/ ENCODED BINARY FILES.
+\f/ 050 06-SEP-1989 DECMATE I SUPPORT, ETC. CJL
+
+/ THIS EDIT IMPLEMENTS DECMATE I SUPPORT USING THE DP278-A OR -B.
+/ A NEW CONDITIONAL 'PORT' SELECTS WHICH PORT IS TO BE USED. IF
+/ KERMIT-12 IS RUN ON DECMATE I (WHILE NOT CONFIGURED FOR SERIAL
+/ PRINTER PORT COMMUNICATIONS; SEE EDIT 048.) THEN REMOTE
+/ COMMUNICATIONS TAKES PLACE ON THE PORT SELECTED AT ASSEMBLY TIME
+/ ('PORT=0' OR 'PORT=1'). ADDED BAUD RATE PARAMETER 'BRATE' TO
+/ SELECT REMOTE COMMUNICATIONS BAUD RATE FROM THE STANDARD TABLE;
+/ DEFAULTS TO 1200 BAUD ('BRATE=7').
+
+/ 049 30-AUG-1989 REMOTE FLOW CONTROL, ETC. CJL
+
+/ THIS EDIT IMPLEMENTS FLOW CONTROL SUPPORT (IF FLOW CONTROL IS
+/ ENABLED) FOR THE REMOTE LINE WHILE SENDING PACKETS TO THE REMOTE
+/ KERMIT REGARDLESS OF STATE. PREVIOUSLY, FLOW CONTROL ONLY
+/ APPLIED TO CONNECT MODE. LOCAL FLOW CONTROL (TOWARDS THE REMOTE
+/ KERMIT) IS UNNECESSARY AS LOCAL BUFFERS FOR REMOTE INPUT ARE
+/ ALWAYS AVAILABLE. CERTAIN ROUTINE CHANGES MADE FOR BENEFIT OF
+/ DECMATE I SUPPORT IN A SUBSEQUENT EDIT.
+
+/ 048 24-AUG-1989 DECMATE II, ETC. SUPPORT. CJL
+
+/ ONCE-ONLY CODE ADDED TO IMPLEMENT DECMATE II, ETC. REMOTE LINE
+/ SUPPORT ON SERIAL COMMUNICATIONS PORT. SELECTED PORT IS
+/ INDICATED ON OPENING BANNER IF OPERATING ON DECMATE.
+
+/ THIS EDIT PROVIDES BASIC SUPPORT OF THE DECMATE II COMMUNICATIONS PORT AS AN
+/ AUTOMATIC FEATURE OF THE STANDARD RELEASE OF K12MIT. AUTOMATIC DETECTION OF
+/ DECMATE II, ETC. HARDWARE IS PERFORMED UNLESS THE PDP-8-TYPE REMOTE LINE
+/ SUPPORT IS ASSEMBLED FOR THE SERIAL PRINTER AS THE REMOTE LINE ('SPRINT' IS
+/ SET OR EQUIVALENT).
+
+/ THIS EDIT INCORPORATES ALL OF THE INFORMATION TAKEN FROM VARIOUS SOURCES
+/ REGARDING DECMATE PORT INITIALIZATION, ETC. EVERY ATTEMPT HAS BEEN MADE TO
+/ COMPLETELY SET ALL APPROPRIATE REGISTERS, ETC. FOR DECMATE II, III, III+
+/ OPERATION. NO SUPPORT EXISTS FOR THE DECMATE III BUILT-IN MODEM OPTION, AS
+/ EXPLICIT DOCUMENTATION IS NOT AVAILABLE (SOME OF THE INITIALIZATION CODE IS
+/ APPARENTLY USED TO DISABLE THE MODEM). THESE ROUTINES ARE ONLY KNOWN TO WORK
+/ ON THE DECMATE II, AS THE III (ESPECIALLY WITH OPTIONAL MODEM) AND THE III+
+/ HAVEN'T BEEN AVAILABLE TO THE AUTHOR FOR TESTING. THE INITIALIZATION CODE
+/ WILL BE UPDATED LATER TO INCLUDE PANEL REQUESTS, ETC. TO CORRECT ANY
+/ PROBLEMS, ETC. DECMATE-SPECIFIC FEATURES (SUCH AS SETUP COMMANDS) WILL BE
+/ ADDED LATER AND ENABLED FROM THESE ROUTINES.
+
+/ THIS EDIT INCORPORATES NON-INTERRUPT ROUTINES WHICH HAVE BEEN TESTED AT THE
+/ MAXIMUM COMMUNICATIONS SPEED OF THE DECMATE II (19200 BAUD). THEY WILL
+/ SUFFICE FOR ALL KERMIT IMPROVEMENTS SHORT OF SLIDING WINDOWS AT WHICH TIME
+/ INTERRUPT-DRIVEN I/O WILL BE REQUIRED. (INTERRUPT-DRIVEN I/O IS ILLEGAL ON
+/ CERTAIN OS/8 SYSTEMS WHERE INTERRUPTS ARE HARMFUL TO THE SYSTEM OR NON-SYSTEM
+/ HANDLERS.)
+\f/ 047 21-AUG-1989 CODE CLEANUP. CJL
+
+/ STREAM-LINED CONNECT MODE ROUTINES FOR MINIMUM USE OF IOTS. THIS
+/ IS IN PREPARATION FOR EVENTUAL DECMATE II OPERATION, AND TO
+/ MINIMIZE K12PCH PATCH FILE SIZE. CERTAIN NON-CONNECT ROUTINES
+/ MOVED TO FACILIATE CONNECT ROUTINE REORGANIZATION.
+
+/ 046 15-AUG-1989 CODE CLEANUP. CJL
+
+/ ADDED NEW (NON-CONNECT) MODE COMMUNICATIONS ROUTINES FOR EVENTUAL
+/ DECMATE USE. ELIMINATION OF 'IREM' AND 'IREMW' ROUTINES IN FAVOR
+/ OF 'COMIN'. ELIMINATION OF 'OREM' IN FAVOR OF 'COMOUT'. ADDED
+/ STATUS UPDATE ROUTINE ('UPSTATUS') FOR EVENTUAL DECMATE II, ETC.
+/ USAGE. ELIMINATED PDP-8, DECMATE I, DECMATE II CONDITIONALS.
+/ REORGANIZED SERIAL LINE CONDITIONALS AND ADDED NEW 'SPRINT'
+/ PARAMETER FOR SERIAL PRINTER PORT USAGE AS COMMUNICATIONS PORT.
+/ ADDED ONCE-ONLY CODE ADDED TO AUTOMATICALLY RECOGNIZE DECMATE I
+/ AND II OPERATION UNLESS ASSEMBLED FOR REMOTE COMMUNICATIONS ON
+/ SERIAL PRINTER PORT ('SPRINT' SET). UPDATED K12PCH.PAL TO
+/ CORRESPOND TO NEW DEFINITIONS. DEFINED EVENTUALLY NEEDED
+/ COMMUNICATIONS PORT INSTRUCTIONS FOR DECMATE II; ACTUAL DECMATE
+/ II OPERATION WILL BE DEFINED IN A SUBSEQUENT EDIT. DOCUMENTED
+/ NEW LOADING AND SAVING INSTRUCTIONS FOR K12MIT TO ALLOW FOR
+/ ONCE-ONLY CODE IN 10000-11777 WITHOUT SWAPPING THE CODE OUT FOR
+/ THE USR. THIS ELIMINATES OVERHEAD WHEN LOADING K12MIT, BUT IS
+/ DIFFERENT FROM THE FORMER INSTRUCTIONS WHICH ASSUMED NO OTHER
+/ USAGE OF 10000-11777 OTHER THAN THE (LOCKED-IN) USR.
+
+/ THIS EDIT PROVIDES THE FRAMEWORK FOR AUTOMATIC DETECTION OF PROGRAM EXECUTION
+/ OF K12MIT ON ANY MEMBER OF THE DECMATE FAMILY (I, II, III, III+). WHEN
+/ 6120-TYPE CPU DETECTION OCCURS, THE DECMATE I OR II-TYPE COMMUNICATIONS PORT
+/ INITIALIZE CODE IS AUTOMATICALLY SELECTED AS NECESSARY UNLESS THE PDP-8-TYPE
+/ ROUTINES ARE ASSEMBLED (WITH 'SPRINT' SET OR EQUIVALENT USER SETTINGS, ETC.)
+/ FOR THE VT-78-TYPE PRINTER PORT (32/33), IN WHICH CASE THE COMMUNICATIONS IS
+/ DONE VIA THE PRINTER PORT ON THE DECMATE (WHICH IS ALMOST PDP-8 COMPATIBLE AND
+/ IS ACCOMODATED AS SUCH).
+
+/ SUBSEQUENT EDITS SHOULD PROVIDE FOR A DECMATE I PARAMETER TO CONTROL THE PORT
+/ SELECTION, AS THERE ARE AT LEAST TWO VARIANT OPTIONS BOARDS (DP-278A AND
+/ DP-278B) EACH CONSISTING OF TWO PORTS.
+\f/ 045 12-AUG-1989 BUG FIX. CJL
+
+/ FINISH, GET, AND RECEIVE COMMANDS FAIL TO ABORT PROPERLY
+/ (ESPECIALLY AFTER THE SEND COMMAND HAS BEEN USED), AS THE CURRENT
+/ OPERATING MODE ('KMODE') IS NEVER PROPERLY SET, OR IS SET AFTER
+/ SEVERAL PACKETS HAVE BEEN SENT. EACH COMMAND NOW SETS ITS OWN
+/ OPERATING MODE BEFORE INITIATING ANY PACKETS.
+
+/ 044 11-AUG-1989 CODE CLEANUP. CJL
+
+/ CHANGED 'CCMSG' TO 'ABMSG' WITH CLEARER MESSAGE. CHANGED
+/ 'CCFLAG' TO 'ABFLAG' FOR CONSISTENCY. CHANGED ABORT CHARACTER
+/ FROM <^C> TO CHOICE OF <^X> OR <^Z> FOR CONSISTENCY. ELIMINATED
+/ 'ITTY' AND 'ITTYW' ROUTINES BY USING 'CTLCTST' AND 'INPUT'
+/ ROUTINES ALREADY AVAILABLE A/O EDIT 043. ELIMINATED 'TCHAR' IN
+/ FAVOR OF 'INCHAR' AVAILABLE A/O EDIT 043.
+
+/ 043 07-AUG-1989 CODE CLEANUP, ETC. CJL
+
+/ REWRITE OF CONSOLE SUPPORT ROUTINES INCLUDING FORCED-ECHO OUTPUT
+/ AND COLUMN COUNT FOR <HT> SIMULATION IN PREPARATION FOR IMPENDING
+/ USER-INTERFACE REWRITE. 'SCRIBE', 'LININP', AND 'ESCPRNT'
+/ ROUTINES NOW CALL "P7ECHO" ROUTINE TO ENSURE PRINTING OF CRUCIAL
+/ MESSAGES.
+
+/ 042 13-JUN-1989 CODE CLEANUP. CJL
+
+/ FIXED VARIOUS NAK-RELATED BUGS AND SEND-INIT PROBLEMS AS IN K278
+/ (SOME OF THE K278 STUFF IS DEFICIENT!). CALCULATION OF PROPER
+/ SEQUENCE NUMBER FOR NAK CORRECTED OVER FORMER (K08MIT AND K278)
+/ VERSIONS. ADDED ERROR MESSAGE FOR FULL-DISK PROBLEM.
+
+/ 041 12-MAY-1989 BUG FIX. CJL
+
+/ VARIOUS VERSIONS (DECMATE) WON'T FUNCTION REMOTELY WHILE KL-8
+/ VERSIONS WORK FINE. ADDED REMOTE LINE READ IOT TO INITIALIZE
+/ REMOTE LINE AT STARTUP TIME FOR VERSIONS REQUIRING THIS.
+/ CORRESPONDING CHANGES IN PATCH FILE MADE FOR REMOTE LINE READ IOT
+/ IN TWO PLACES.
+\f/ 040 07-MAR-1989 COSMETIC CLEANUP. CJL
+
+/ CLEANUP OF EDIT HISTORY AND OTHER COMMENTS.
+
+/ 039 21-MAY-1988 CODE CLEANUP. CJL
+
+/ ADDED VARIABLE 'INIECHO' TO ALLOW DEFAULT CONNECT-MODE STATE TO
+/ BE HALF-DUPLEX ("SET LOCAL-ECHO ON"). MODIFIED INPUT SERVICE
+/ ERROR ADDRESSES TO SIMPLIFY ERROR TABLES.
+
+/ 038 19-MAY-1988 CODE CLEANUP. CJL
+
+/ ELIMINATED TRAILER FILES DURING ASSEMBLY BY CREATING VARIABLES
+/ 'GENMSG' AND 'UMSG.' THIS ALLOWS THE HEADER FILE (PARAM.PA) TO
+/ CONTAIN THE LOCAL MESSAGE TEXT WITHOUT SUBSEQUENT OVERLAY (WHICH
+/ WAS WHY THERE FORMERLY WAS A TRAILER FILE CAPABILITY). OVERLAY
+/ BY K12PCH.BN WILL DEFAULT TO CREATION OF A DUMMY USER MESSAGE
+/ (WITHIN K12PCH) ENCOURAGING LOCAL CUSTOMIZATION. K12MIT.BN WILL
+/ CONTAIN A NULL MESSAGE BY DEFAULT UNLESS CUSTOMIZED IN PARAM.PA.
+
+/ 037 21-JAN-1988 BUG FIX. CJL
+
+/ RESET OS/8 DEVICE CONTROL WORD TABLE TO DELETE TENTATIVE FILE IN
+/ CASE OF PRIOR INPUT SERVICE ERROR.
+
+/ 036 20-JAN-1988 BUG FIX. CJL
+
+/ RESET 'OFFLG' WHEN DOING INPUT SERVICE IN CASE PRIOR ERRORS LEAVE
+/ THE FLAG SET.
+
+/ 035 14-JAN-1988 USR RESIDENT CODING. CJL
+
+/ CALLS TO USR NOW USE 10200 INSTEAD OF 17700. NO SWAP OVERHEAD
+/ WHEN OPENING OR CLOSING FILES.
+
+/ 034 13-JAN-1988 CODE CLEANUP. CJL
+
+/ ALL EIGHT-BIT ORIENTED CONSOLE CODE ELIMINATED; NOW IGNORES
+/ PARITY (JUST SEVEN BITS).
+
+/ 033 12-JAN-1988 CODE CLEANUP. CJL
+
+/ 'TTYOUT' AND 'OTTY' ROUTINES ELIMINATED; NOW USES 'P7CH' FOR ALL
+/ CONSOLE OUTPUT (EXCEPT FOR CONNECT MODE).
+
+/ 032 12-JAN-1988 CODE CLEANUP. CJL
+
+/ VARIOUS ROUTINES REWRITTEN TO ELIMINATE DEPENDENCIES ON CPU TYPE
+/ BEYOND THE CLASSIC PDP-8.
+\f/ 031 11-JAN-1988 CODE CLEANUP. CJL
+
+/ ELIMINATED 'RTDISP' AND CHANGED CALLING CONVENTION FOR DISPATCH
+/ ROUTINE. ALL CALLERS NOW LOCAL OR VIA LOCAL POINTERS. ADDED
+/ SEVERAL CONDITIONAL PARAMETERS AND LABELS FOR BENEFIT OF
+/ K12PCH.PAL.
+
+/ 030 05-JAN-1988 CODE CLEANUP. CJL
+
+/ CHANGED LOWER/UPPER CASE CONDITIONAL ASSEMBLY PARAMETERS AND MORE
+/ EFFICIENT CODE.
+
+/ 029 21-DEC-1987 CODE CLEANUP. CJL
+
+/ CHANGED CALLING CONVENTIONS FOR 'SCRIBE' AND SIMILAR ROUTINES AND
+/ REWROTE 'COMMAND' ROUTINE.
+
+/ 028 15-DEC-1987 CODE CLEANUP. CJL
+
+/ COMPLETE REWRITE OF FILE LOOKUP ROUTINE. 'LUKUP' NOW USES FIELD
+/ ONE BUFFER AND ITS OWN AUTO-INDEX REGISTER CONSERVING PROGRAM
+/ SPACE.
+
+/ 027 05-DEC-1987 CODE CLEANUP. CJL
+
+/ CHANGED DISPATCH ('DISPA0') ROUTINE TO USE 'SRCHTABLE' ROUTINE.
+/ ALL CALLS MADE COMPATIBLE. ELIMINATED 'SCANC' CODE. ELIMINATED
+/ CODE WITHIN 'DPARS' ROUTINE. 'LUKUP' ROUTINE NOW DOES ITS OWN
+/ DISK I/O. ELIMINATED 'BLKIN' ROUTINE.
+
+/ 026 27-NOV-1987 NEW CONNECT MODE CODE. CJL
+
+/ TOTAL REWRITE OF ALL CONNECT MODE CONSOLE AND REMOTE INPUT AND
+/ OUTPUT TERMINAL ROUTINES. CONNECT IS NOW FULLY BUFFERED IN ALL
+/ DIRECTIONS. IF FLOW CONTROL IS OBEYED, ANY BAUD RATE CAN BE
+/ ACCOMODATED BOTH LOCALLY AND REMOTE (UP TO 9600 BAUD TESTED,
+/ SHOULD WORK TO AT LEAST 19200 BAUD BY INSPECTION). TESTED WITH
+/ FAST VT-100 EMULATOR CONSOLE TO PROVE ESCAPE SEQUENCES ARE NOT
+/ DROPPED WHEN LOCAL TERMINAL IS FASTER THAN REMOTE LINE. LIMITED
+/ USE OF SUBROUTINES TO IMPROVE HIGH BAUD RATE OPERATION. ADDED
+/ TABLE-DRIVEN ERROR EXITROUTINE FOR SEND ROUTINES.
+
+/ THIS EDIT PROVIDES FULLY BUFFERED INPUT/OUTPUT ROUTINES FOR BOTH LOCAL AND
+/ REMOTE PORTS. NO INTERRUPTS ARE USED FOR MAXIMUM COMPATIBILITY WITH OS/8
+/ DEVICES (SOME OF WHICH ARE INTOLERANT OF INTERRUPTS, SUCH AS TD-8/E). REMOTE
+/ FLOW CONTROL (IF ENABLED) WILL SIGNAL BUFFER FILLING VIA <DC3> WHEN THE BUFFER
+/ IS 3/4 FULL. WHEN THE BUFFER REACHES 1/4 FULL, THE REMOTE WILL BE SENT <DC1>
+/ TO ALLOW FURTHER OUTPUT. REMOTE FLOW CONTROL IS SUPPORTED IN BOTH DIRECTIONS;
+/ LOCAL FLOW CONTROL IS FROM THE KEYBOARD ONLY.
+
+/ WHILE THE CONSOLE OUTPUT IS PAUSED BY <DC3>, THE BUFFER WILL FILL WITH OUTPUT
+/ CHARACTERS. WHEN THE USER RELEASES THE CONSOLE WITH <DC1>, THE BUFFER WILL
+/ RAPIDLY EMPTY (ASSUMING THE CONSOLE IS FASTER THAN THE REMOTE LINE). THIS
+/ ALLOWS THE USER TO PAUSE THE CONSOLE WITHOUT BACKING UP THE REMOTE LINE UP TO
+/ THE LIMITS OF BOTH LOCAL OUTPUT AND REMOTE INPUT BUFFERS.
+\f/ 025 24-NOV-1987 NEW FEATURES AND CODE CLEANUP. CJL
+
+/ PROPER INTERRUPT SETUP FOR <^C> AND <^P>, ECHO STATE. ALL
+/ MESSAGES IN NEW FORMAT, (SOME NEW ONES HAVE BETTER CONTENT).
+/ ELIMINATED 'PRI6B' AND 'REM6B' ROUTINES. NEW AND IMPROVED INPUT
+/ SERVICE ERROR CODE MOVED TO PROPER PAGE. REWROTE CONNECT
+/ ROUTINES TO ALLOW NON-INTERRUPT BUFFERED I/O LATER. CREATED NEW
+/ VARIABLE 'ESCHAR' AND PARAMETER 'ESCAPE' TO SET DEFAULT ESCAPE
+/ CHARACTER. ESCAPE CHARACTER CAN BE CHANGED IN MEMORY AND WILL BE
+/ USED CORRECTLY BY ALL ROUTINES. ADDED 'ESCPRNT' ROUTINE TO
+/ HANDLE ALL CASES (INCLUDING NON-CONTROL CHARACTERS). DEFAULT
+/ ESCAPE PARAMETER VALUE COMPATIBLE WITH K08V2, BUT IS A USER
+/ PARAMETER, CONFIGURED AS OTHER PARAMETERS DEFINED IN EDIT 017.
+/ CREATED ESCAPE FUNCTION TABLE FOR EXPANSION LATER. NOW SUPPORTS
+/ ESCAPE C(LOSE) IN UPPER OR LOWER CASE, ESCAPE ESCAPE (SEND ONE
+/ ESCAPE CHARACTER). ALL BAD ESCAPE COMMANDS WILL ISSUE <BEL>
+/ CHARACTER TO WARN USER THAT COMMAND IS ILLEGAL AND OTHERWISE WAS
+/ IGNORED. CREATED NEW VARIABLE 'ECHOFLAG' TO ALLOW LOCAL ECHO IN
+/ CONNECT MODE.
+
+/ 024 19-NOV-1987 NEW FEATURES. CJL
+
+/ NEW STARTUP MESSAGES AND HELP METHOD VIA COMMAND. CPU TYPE
+/ IDENTIFICATION TO ALLOW FUTURE VERSIONS TO CHECK FOR QUIRKS AND
+/ MODEL DEPENDENCIES. THE DEFAULT PROMPT REFLECTS THE ACTUAL CPU
+/ TYPE (THUS "KERMIT-12>" ON PDP-12). VERSION, REVISION, AND DATE
+/ NOW EQUATED SYMBOLS.
+
+/ 023 18-NOV-1987 NEW CONSOLE I/O PACKAGE. CJL
+
+/ NEW CONSOLE I/O ROUTINES WITH DC1/DC3 SUPPORT FOR CONSOLE
+/ TERMINAL MESSAGES NOT ASSOCIATED WITH ANY REMOTE ACTIVITY (NOT TO
+/ BE USED DURING CONNECT MODE). USES FIELD ONE FOR MESSAGE TEXT TO
+/ ALLOW FOR MORE PROGRAM SPACE. THE MESSAGES ARE NOW GIVEN IN
+/ UPPER/LOWER SIXBIT FORMAT. SUPPORT FOR <^P> RESTART AND <^O> TO
+/ FLIP ECHO. UPPER-CASE CAN BE FORCED BY CHANGING A VARIABLE
+/ ('UPONLY').
+
+/ 022 17-NOV-1987 BUG FIX. CJL
+
+/ EXTRA-LONG INIT PACKETS CORRUPTING PROGRAM; NOW CHECKS FOR AND
+/ IGNORES EXTRA CAPABILITIES BEYOND 'CAPAS' BYTE.
+\f/ 021 17-NOV-1987 CODE CLEANUP. CJL
+
+/ REWROTE TENTATIVE OUTPUT FILE LENGTH CODE FOR MORE CONSISTENCY.
+/ RENAMED "FINISH" COMMAND CORRECTLY (FORMERLY "BYE").
+
+/ FORMER CODE REGARDING THE TENTATIVE FILE MAXIMUM LENGTH WAS ACCEPTABLY
+/ ORGANIZED FOR ORIGINAL PS/8, OS/8 CONVENTIONS. WITH THE EVOLUTION OF THE
+/ OPERATING SYSTEM INTO OS/78 (VERSIONS 1-4) AND OS/278 (VERSIONS 1-2), THE
+/ ENTER OPERATION HAS BEEN CHANGED WITH DANGEROUS CONSEQUENCES.
+
+/ THE ORIGINAL DEFINITION OF THE LENGTH RETURNED BY ENTER IS THE ACTUAL LENGTH
+/ OF THE LARGEST EMPTY (IN TWO'S COMPLEMENT FORM). IF RECORD 7777 IS PART OF
+/ THE ACTUAL LARGEST EMPTY (FULL SIZE DEVICE AND THE LARGEST EMPTY IS LAST ON
+/ THE DEVICE), THEN THE LENGTH RETURNED IS ONE LESS (THIS IS A LONG STANDING
+/ BUG). SINCE THERE IS NO STRAIGHT-FORWARD WAY TO DETERMINE THIS, THE LENGTH IS
+/ ASSUMED TO BE CORRECT.
+
+/ TESTS WITH THE DECUS VERSION OF OS/278 (DM-101) REVEAL A DANGEROUS CHANGE:
+/ THE LENGTH RETURNED IS TWO LARGER THAN ACTUALLY EXISTS!
+
+/ TO COUNTERACT THIS, EDIT 010 INSERTED A DECREMENT OF TWO INTO THE LENGTH
+/ BEFORE PASSING IT BACK TO THE KERMIT FILE WRITING ROUTINE. THE FILE WRITING
+/ ROUTINE THEN ADDS ONE TO THE LENGTH TO CREATE A "DANGER COUNT", I.E., IN TWO'S
+/ COMPLEMENT NOTATION, THIS IS THE AMOUNT THAT WILL INDICATE FILE OVERFLOW
+/ SHOULD IT REACH ZERO.
+
+/ THIS HAS NOW BEEN REORGANIZED TO ALLOW THE ENTER ROUTINE TO SET THE DANGER
+/ COUNT DIRECTLY. OS/8 USERS MUST ALLOW FOR THE EXTRA ROOM (WHICH MUST BE
+/ PRESENT BUT WILL NOT BE USED), SINCE NO CHECK FOR SYSTEM VERSION WILL BE
+/ PERFORMED.
+
+/ 020 16-NOV-1987 NEW ROUTINES AND CODE CLEANUP. CJL
+
+/ REWROTE ENTIRE OUTPUT FILE PACK ROUTINE. NOW SUPPORTS
+/ ASCII/BINARY INTERNAL FILE MODE FOR LATER USE. USES OUTPUT
+/ BUFFER IN FIELD ONE (SAME DEFINITIONS AS INPUT BUFFER) TO ALLOW
+/ MORE PROGRAM SPACE. END OF FILE CONVENTION IN ASCII MODE NOW
+/ INCLUDES ENSURING <^Z> CHARACTER PACKED INTO FILE (OR NOT).
+/ REWROTE ENTIRE OUTPUT FILE CLOSE ROUTINE TO IMPLEMENT <^Z>
+/ SCHEME. ELIMINATED SEPARATE OUTPUT FILE INITIALIZE ROUTINE; USE
+/ SPECIAL ROUTINE CALL INSTEAD. FIXED PACKET WRITE BUG.
+
+/ 019 15-NOV-1987 NEW ROUTINES AND CODE CLEANUP. CJL
+
+/ FIXED UNPACK <^Z> BUG. REWROTE ENTIRE INPUT FILE UNPACK ROUTINE.
+/ NOW SUPPORTS ASCII/BINARY INTERNAL FILE MODE FOR LATER USE. USES
+/ INPUT BUFFER IN FIELD ONE TO ALLOW MORE PROGRAM SPACE. BUFFER
+/ FIELD DEFINED VIA SYMBOLS TO ALLOW CHANGES IN THE FUTURE. END OF
+/ FILE CONVENTION IN ASCII MODE NOW INCLUDES SENDING <^Z> CHARACTER
+/ OR NOT. ELIMINATED SEPARATE INPUT FILE INITIALIZE ROUTINE; USE
+/ SPECIAL ROUTINE CALL INSTEAD.
+
+/ 018 09-NOV-1987 BUG FIX AND CODE CLEANUP. CJL
+
+/ FIXED RECEIVE BUG; NOW ALLOW DEV: ON RECEIVE.
+\f/ 017 05-NOV-1987 NEW FEATURES. CJL
+
+/ CONDITIONAL ASSEMBLY PARAMETERS ADDED FOR MACHINE TYPE (PDP-8,
+/ DECMATE I, DECMATE II/III/III+), REMOTE LINE AND LOCAL TERMINAL
+/ INTERFACE DEFINITIONS.
+
+/ 016 05-NOV-1987 CODE CLEANUP. CJL
+
+/ OPTIMIZATION OF CODE, LITERALS, CONSTANTS.
+
+/ 015 04-NOV-1987 BUG FIX. CJL
+
+/ INPUT SERVICE ROUTINE ERROR DOES JMP INSTEAD OF JMS WHEN CALLING
+/ COMMON ERROR HANDLER.
+
+/ 014 02-NOV-1987 SOURCE FILE CLEANUP. CJL
+
+/ SOURCE FILE COSMETICALLY CLEANED UP AND RENAMED TO K12MIT.PAL
+/ WHICH CONFORMS WITH CUCCA NAMING CONVENTION. NO ACTUAL BINARY
+/ CODE CHANGES BEYOND K08V2. THIS EDIT HISTORY ADDED. ENTRIES
+/ PRIOR TO 014 TRANSCRIBED BY CJL.
+
+/ SINCE THE PDP-12 (AND OTHER 12-BIT DEC MACHINES) IS THE INTENDED ENVIRONMENT
+/ FOR THIS PROGRAM, IT IS NOW KNOWN AS KERMIT-12.
+
+/ ASSEMBLING THE SOURCE FILE PRODUCES BINARY IDENTICAL TO K08V2.PA CONFIRMING
+/ THAT SOURCE CLEANUP DOESN'T DAMAGE THE CODING (K08V2 IS NOW OBSOLETE).
+
+/ 013 01-OCT-1987 CHANGE TO VERSION 2.0. R. SCHLERF (RICH)
+
+/ CHANGED 'RKIOT'/'RTIOT' TO 43/44 REMOTE LINE IOT (LOCAL
+/ PREFERENCE). CHANGED 'ESCAPE' CHARACTER TO ^] ('CONX1') FOR
+/ GENERIC CONFORMITY. ADDED VERSION/COMMAND BANNER AT STARTUP FOR
+/ MINI-HELP. INCORPORATED K278 CHANGES 003-006, 009-010 (NO
+/ INTERRUPTS). DELETED 'ERRMSG.' NOW USES 'STXERR' AT 'CLOOP9'+2
+/ FOR PROGRAM SPACE. TO CONFORM TO GENERIC KERMIT, "BACK ON PDP8"
+/ MESSAGE DELETED AND REPLACED WITH BEEP <^G>. MESSAGE "SENDING
+/ FILE XXXXXX.XX CREATED ON DD-MM-YY" REDUCED TO "SENDING FILE
+/ XXXXXX.XX" TO CONFORM TO GENERIC KERMIT. PARITY BIT IS IGNORED
+/ ON BOTH REMOTE AND TTY LINES. OUTPUT PARITY IS SET TO SPACE.
+
+/ PROGRAM RENAMED TO K08V2.PA AND MADE AVAILABLE TO CUCCA BY:
+
+/ RICHARD SCHLERF (RICH)
+/ AMERICAN CYANAMID COMPANY
+/ MEDICAL RESEARCH DIVISION
+/ LEDERLE LABORATORIES
+/ BUILDING 190 ROOM 115H
+/ PEARL RIVER, NEW YORK 10965
+/ (914) 732-2186 (09:00 TO 16:00)
+
+/ SINCE PRIMARY APPLICATION OF K08V2 IS FOR PDP-8 USAGE, THE MODIFICATIONS NOT
+/ SPECIFIC TO DECMATE II/III FROM K278 WERE MOVED TO THE K08MIT VERSION. FUTURE
+/ VERSIONS WILL INCORPORATE THE DECMATE FEATURES AND THUS OBSOLETE ALL OTHER
+/ VERSIONS AT THAT TIME.
+\f/ 012 04-JUN-1986 PROGRAM FIX. SEPP STADELMANN (SSTA)
+
+/ RE-INITIALIZE VIA 'V30ST' AS ROM SETUP CLEARS COMPOSETABLE, ETC.
+
+/ 04-JUN-1986 VERSION RELEASED TO CUCCA BY MARTYN HEMMINGS (DEC GERMANY) AND
+/ SEPP STADELMANN (DEC SWITZERLAND) OF:
+
+/ DIGITAL EQUIPMENT CORPORATION (DEC)
+/ 146 MAIN STREET
+/ MAYNARD, MASS 01754
+/ (617) 897-5111
+
+/ CUCCA RENAMED FILES (KERMIT.PA AND KERCOM.PA) TO K278.PA AND K278COM.PA (WHICH
+/ DOESN'T REALLY CONFORM TO THE NAMING CONVENTION).
+
+/ CUCCA VERSION OF K278.PA FOUND TO BE DEFECTIVE. FILE REPAIRED BY:
+
+/ CHARLES LASNER (CJL)
+/ CLA SYSTEMS
+/ 72-55 METROPOLITAN AVENUE
+/ MIDDLE VILLAGE, NEW YORK 11379-2107
+/ (718) 894-6499
+
+/ REPAIRED FILE (K278.PA) NOW AVAILABLE AT CUCCA.
+
+/ PROGRAM IS NOW THE DECMATE II/III (III-PLUS) KERMIT ONLY. HOOKS WERE LEFT IN
+/ FOR PDP-8 VERSION, BUT NOT IMPLEMENTED. K278 DOES WORK WITH ADDITIONAL
+/ IMPLEMENTATIONS OF KERMIT, BUT RECEIVE COMMAND DOES NOT WORK. PROGRAM YIELDS
+/ RECOVERABLE SYSTEM ERROR/HALT WHEN EXITING TO FLOPPY-BASED DECMATE II SYSTEM.
+/ CONNECT MODE IS VT200 8-BIT WHICH CONFUSES EVEN/ODD PARITY SYSTEMS. K278 DOES
+/ NOT SUPPORT SETUP KEY OF DECMATE, BUT IMPLEMENTS SETUP COMMAND.
+
+/ 011 04-JUN-1986 NEW FEATURES. SSTA
+
+/ 'PRQ3' CODE CONDITIONALS. ROM SETUP COMMAND IMPLEMENTED FOR DMII/III.
+/ AUTOMATIC UPPERCASE SELECT ON RETURN FROM CONNECT.
+
+/ 010 13-MAR-1986 BUG FIX. MARTYN HEMMINGS (MART)
+
+/ FULL DISK HANDLED WELL.
+
+/ 009 13-MAR-1986 BUG FIX. MART
+
+/ CLEAN UP BREAK AND GET.
+\f/ 008 12-MAR-1986 BUG FIX. MART
+
+/ CLEAR INPUT CHARACTERS FROM COMMUNICATIONS PORT WHEN IN IDLE
+/ LOOP.
+
+/ 007 11-MAR-1986 NEW FEATURES AND BUG FIX. MARTYN HEMMINGS AND
+/ SSEP STADELMANN
+/ (MART+SSTA)
+
+/ INTERRUPT DRIVEN AND BUG FIX.
+
+/ 006 10-MAR-1986 NEW FEATURE. MART+SSTA
+
+/ DEVICE PARSE ON GET.
+
+/ 005 10-MAR-1986 BUG FIX. MART+SSTA
+
+/ NO DATE IN FILE WITH <^Z> INTACT.
+
+/ 004 10-MAR-1986 NEW FEATURES AND BUG FIX. MART+SSTA
+
+/ MAXIMUM RECEIVE BUFFER FIXUP ('RTERMI'), 15 SECOND TIME-OUT
+/ DURING CONNECT.
+
+/ 003 10-MAR-1986 BUG FIX. SSTA
+
+/ TWO PAGE HANDLER FIX.
+
+/ K08MIT.PAL COPIED TO DEC ENGINEERING NETWORK (NODE LSMVAX::) ULTIMATELY TO
+/ EUROPE (NODE VIRGIN::) WHERE PROGRAM BECAME KERMIT.PAL AND KERCOM.PAL.
+
+/ KERMIT.PAL AND KERCOM.PAL ARE TWO SOURCE FILES ASSEMBLED TOGETHER TO PRODUCE
+/ THE RUNNING KERMIT-8. *THEY ARE FOR THE DECMATE II/III/III-PLUS ONLY.*
+
+/ 002 18-JUL-1985 ORIGINAL RELEASE. RANDY HIPPE
+
+/ 18-JUL-1985 VERSION RELEASED TO CUCCA BY JERRY SANDS AND RANDY HIPPE OF:
+
+/ BUREAU OF ENGRAVING, INC.
+/ 3311 BROADWAY N.E.
+/ MINNEAPOLIS, MN 55413
+/ (612) 623-0900 X218
+
+/ CUCCA RENAMED FILE (KER8.PAL) TO K08MIT.PAL WHICH CONFORMS TO NAMING
+/ CONVENTION OF KERMIT FILES.
+
+/ K08MIT SUPPORTS CONNECT, BYE (REALLY FIN), EXIT, SEND, GET, RECEIVE ONLY.
+
+/ PROGRAM PRONE TO GETTING "CONFUSED" AND OUTPUTS FILE DATE ATTRIBUTE BOTH AS
+/ 'CAPAS' BYTE FEATURE AND ASCII TEXT INSERTED INTO CONTENTS OF FILE AHEAD OF
+/ FILE DATA. COMMAND PROCESSOR ACCEPTS UPPER-CASE COMPLETE COMMANDS ONLY. <^C>
+/ ABORT FEATURE TAKES VERY LONG TIME TO ACT (IF AT ALL!). MANY KERMITS WILL NOT
+/ WORK WITH K08MIT; HOWEVER, K08MIT WAS TESTED SUCCESSFULLY WITH KERMIT-20.
+
+/ 001 30-JUL-1984 FIRST VERSION (KER8.PAL). JERRY SANDS
+\f/ HARDWARE HINTS AND KINKS.
+
+
+/ KERMIT-12 REQUIRES THE FOLLOWING STANDARD OS/8 FAMILY CONFIGURATION:
+
+/ PDP-8 FAMILY MEMBER WITH AT LEAST 8K MEMORY.
+
+/ OS/8 SYSTEM DEVICE (WITH OS/8 FAMILY OPERATING SYSTEM RESIDENT).
+
+/ KL8-COMPATIBLE CONSOLE INTERFACE.
+
+/ 7/8-BIT ASCII EXTERNAL CONSOLE TERMINAL DEVICE (TTY:).
+
+/ KL8-COMPATIBLE REMOTE INTERFACE TO OTHER KERMIT.
+
+/ NOTE: ASSEMBLY PARAMETERS OF KERMIT-12 ALLOW FOR LOCAL KERMIT CONTROLLING
+/ TERMINALS TO BE OTHER THAN THE PRIMARY OS/8 CONSOLE DEVICE. THE ACTUAL
+/ HARDWARE MUST STILL CONFORM TO THE SAME REQUIREMENTS (THE DEVICE CODES WOULD
+/ THEN BE USER-SPECIFIED AND DIFFER FROM THE STANDARD 03/04) AS THE STANDARD
+/ CONSOLE INTERFACE AND TERMINAL.
+
+/ SPECIAL DECMATE CONSIDERATIONS:
+
+/ DECMATE USAGE IS USUALLY OBTAINED BY ASSEMBLING FOR THE STANDARD CONSOLE
+/ DEVICE (03/04), AS THE BUILT-IN FIRMWARE/SLUSHWARE OF THE DECMATES IS
+/ SUFFICIENTLY COMPATIBLE WITH THE PDP-8 HARDWARE FOR KERMIT-12'S REQUIREMENTS.
+/ (THE ONLY OTHER ACCEPTABLE CONSOLE DEVICE ON THE DECMATE IS THE PRINTER PORT.)
+
+/ DECMATE REMOTE COMMUNICATIONS PORTS ARE *RADICALLY* DIFFERENT FROM
+/ KL8-COMPATIBLE PORTS. THESE ARE HANDLED AUTOMATICALLY BY ONCE-ONLY CODE WHICH
+/ DETECTS THE USAGE OF KERMIT-12 ON THE SPECIFIC DECMATE SYSTEM, AND
+/ SELF-CONFIGURATION AS APPROPRIATE. THERE IS ONE EXCEPTION TO THIS, NAMELY IF
+/ THE COMMUNICATIONS PORT CODE IS ASSEMBLED FOR THE PRINTER PORT (32/33), THEN
+/ THE PRINTER PORT, *NOT* THE COMMUNICATIONS PORT WILL BE USED. THE STANDARD
+/ ASSEMBLY OF KERMIT-12 IS FOR A PDP-8 WITH DEVICE 40/41 COMMUNICATIONS PORT.
+/ THIS DESIGNATED VERSION WILL SELF-CONFIGURE WHEN EXECUTED ON A DECMATE.
+\f/ CONFIGURATION RESTRICTIONS:
+
+/ WHEN INTERRUPTS ARE SUPPORTED AGAIN, DEVICES SUCH AS THE TD-8/E WON'T WORK.
+/ THE NON-INTERRUPT VERSION SHOULD WORK TO 19200 BAUD ON THE PDP-8/E CPU, SO
+/ THIS SHOULD NOT BE A PROBLEM. INTERRUPT-DRIVEN VERSIONS OF KERMIT-12 MUST BE
+/ RUN ONLY ON SYSTEMS WHERE *ALL* INTENDED DEVICES CAN HAVE THEIR HANDLERS
+/ INTERRUPTED BY THE CONSOLE AND REMOTE LINE INTERRUPT HANDLERS. WHEN IN DOUBT,
+/ THE NON-INTERRUPT VERSION MUST BE USED (CURRENTLY THE ONLY VERSION).
+
+/ IF FLOW CONTROL IS DISABLED (DUE TO XON/XOFF BEING UNAVAILABLE) THEN THE
+/ CONSOLE BAUD RATE MUST MEET OR EXCEED THE REMOTE LINE RATE. THE USER MUST
+/ TAKE MINIMAL CARE NOT TO OVERLOAD THE INTERNAL BUFFERS OF KERMIT-12, AS THIS
+/ WILL YIELD THE ERROR MESSAGE: KEYBOARD INPUT ERROR!
+
+/ THIS IS NOT LIKELY TO OCCUR UNLESS ONE "PLAYS" WITH A KEYBOARD WHICH CAN
+/ GENERATE NUMEROUS ESCAPE SEQUENCES AS THE BUFFERS ARE QUITE ADEQUATE FOR ALL
+/ REASONABLE TERMINAL APPLICATIONS. SIMILARLY, IF THE REMOTE LINE DOES NOT OBEY
+/ XON/XOFF PROTOCOL (WHILE KERMIT-12 HAS IT ENABLED), THEN INTERNAL BUFFER
+/ OVERFLOW WILL YIELD THE ERROR MESSAGE: REMOTE LINE INPUT ERROR!
+
+/ THESE ERRORS ARE EXTREMELY UNLIKELY AND CAN ONLY BE CREATED BY MISUSE OF FLOW
+/ CONTROL (THE ONLY EXCEPTION TO THIS IS THE ATTEMPT TO USE KERMIT-12 WITH THE
+/ CONSOLE BAUD RATE SLOWER THAN THE REMOTE LINE BAUD RATE WITH FLOW CONTROL
+/ DISABLED). IF FLOW CONTROL IS ENABLED AND OBEYED THEN THE BUFFERING OF REMOTE
+/ LINE INPUT WILL OCCUR WHILE SHORT PAUSES OCCUR ON THE CONSOLE (ASSUMING THE
+/ USER FREEZES/UNFREEZES THE DISPLAY OFTEN AND THE CONSOLE DISPLAY BAUD RATE IS
+/ FASTER THAN THE REMOTE LINE BAUD RATE) WITH PRACTICALLY NO REMOTE LINE DELAY.
+
+/ FLOW CONTROL IS NOT YET SUPPORTED DURING KERMIT TRANSFERS. SINCE KERMIT-12
+/ DOES NOT SUPPORT SLIDING WINDOWS, KERMIT-12 WILL NEVER GENERATE OUTGOING
+/ XON/XOFF SEQUENCES. FUTURE REVISIONS WILL SUPPORT INCOMING XON/XOFF FROM THE
+/ REMOTE KERMIT. XON/XOFF PROTOCOL DURING CONNECT MODE IS COMPLETELY AVAILABLE
+/ AT THE USER'S OPTION.
+
+/ CONSOLE TERMINALS ARE REQUIRED TO SUPPORT "GLASS TTY:" FEATURES, I.E. THE
+/ PRINTING ASCII CHARACTER SET (LOWER-CASE DESIRABLE) AND THE CONTROL CHARACTERS
+/ <CR>, <LF>, AND <BEL> (THE LAST FOR VARIOUS AUDIBLE REPORTS ONLY). TERMINALS
+/ LACKING LOWER-CASE SUPPORT SHOULD "FOLD" LOWER-CASE CHARACTERS TO UPPER-CASE
+/ AUTOMATICALLY. TERMINALS SUCH AS THE VT05 CAN HAVE THE KEYBOARD LOWER-CASE
+/ ENABLED, AS KERMIT-12 SUPPORTS OPTIONAL OUTPUT FOLDING. THE UPPER-CASE ONLY
+/ OPTION SHOULD BE ENABLED FOR TERMINALS WHICH IGNORE LOWER-CASE INPUT FROM THE
+/ HOST, AS KERMIT-12 GENERATES NUMEROUS LOWER-CASE MESSAGE CHARACTERS (WHICH
+/ BECOME UPPER-CASE IF THIS OPTION IS SET). THE <BS> CHARACTER IS REQUIRED FOR
+/ VISUAL RUBOUT (<BS> <SPACE> <BS>) ONLY. FUTURE VERSIONS WILL SUPPORT
+/ HARD-COPY BACKSPACE TO REMOVE THIS REQUIREMENT. ALL TERMINAL FEATURES (SUCH
+/ AS ACTUAL VT-100 FUNCTIONALITY) ARE FREELY PASSED TO THE HOST DURING CONNECT
+/ MODE; THE ONLY CHARACTER ACTUALLY RESERVED IS THE ESCAPE CHARACTER WHICH WILL
+/ BE TREATED AS A SEVEN-BIT CHARACTER ONLY. IF THE USER PRESSES THE ESCAPE
+/ CHARACTER TWICE, THEN THE SEVEN-BIT REPRESENTATION OF THE CHARACTER IS SENT
+/ ONCE; THERE IS NO WAY TO SEND THE ESCAPE CHARACTER WITH THE HIGH-BIT SET.
+/ SINCE THE ESCAPE CHARACTER ITSELF CAN BE SET TO ALMOST ANY SEVEN-BIT VALUE,
+/ THIS SHOULD NOT BE A SERIOUS LIMITATION. TERMINALS THAT DON'T "BEEP" WHEN THE
+/ <BEL> CHARACTER IS SENT SHOULD NOT OUTPUT A PRINTABLE RENDITION OF THE <^G>
+/ CHARACTER, AS THIS WOULD DISRUPT THE TERMINAL OUTPUT AND INTERNAL COLUMN COUNT
+/ DURING VARIOUS MESSAGE SEQUENCES, ETC.
+\f/ KL-8/E INTERFACES SHOULD BE SETUP WITH THE FOLLOWING STANDARD SETTINGS:
+
+/ 1 STOP BIT ABOVE 110 BAUD WITH 8 BITS DATA.
+
+/ FUNCTIONAL BAUD RATES INCLUDE 110, 150, 300, 600, 1200, 2400, 4800, 9600,
+/ 19200, 38400 AND 76800. 2400 BAUD REQUIRES A REVISION "B" OR BETTER M8650
+/ MODULE (IF ONE USES DEC'S DOCUMENTATION OF AVAILABLE SPLIT-LUG OPTIONS).
+/ ACTUAL BAUD RATES UP TO APPROXIMATELY 100 KBAUD SHOULD WORK WHEN KERMIT-12
+/ BECOMES INTERRUPT-DRIVEN. RATES OTHER THAN 110 BAUD REQUIRE A 19.6608 MHZ
+/ BAUD-RATE OSCILLATOR.
+
+/ THE BAUD RATES STATED ABOVE ARE ACTUALLY AVAILABLE ON THE KL-8/E, BUT REQUIRE
+/ A SINGLE SOLDER JUMPER TO IMPLEMENT THE PROPER BAUD RATE ABOVE 2400 BAUD.
+/ CHANGING BAUD-RATE GENERATOR CRYSTALS WILL PRODUCE OTHER RATES AS NECESSARY.
+/ (SEND INQUIRIES TO CLA SYSTEMS FOR INFORMATION REGARDING KL-8/E MODIFICATIONS
+/ INCLUDING UPGRADED BAUD-RATE OSCILLATORS, ETC.) KERMIT-12 HAS BEEN TESTED TO
+/ 9600 BAUD AND SHOULD WORK TO 19200 BAUD (AS OF THE CURRENT VERSION).
+
+
+/ KL8-J/A INTERFACES SHOULD BE SETUP WITH THE FOLLOWING STANDARD SETTINGS:
+
+/ 1 STOP BIT ABOVE 110 BAUD WITH 8 BITS DATA NO PARITY.
+
+/ FUTURE VERSIONS OF KERMIT-12 WILL SUPPORT VARIOUS SOFTWARE-GENERATED PARITY
+/ OPTIONS. THE FRAMING AND OVERRUN ERRORS CAN BE ENABLED AND WILL EVENTUALLY BE
+/ SUPPORTED (BUT THE PARITY GENERATOR SHOULD BE DISABLED TO PREVENT INTERACTION
+/ WITH THE SOFTWARE USE OF PARITY GENERATION/DETECTION).
+
+/ ALL BAUD RATES ARE SUPPORTABLE:
+
+/ 110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200.
+
+/ 19200 BAUD IS ACHIEVED BY CUTTING JUMPER "W2" AND ADDING JUMPER "W5" AND THEN
+/ SETTING THE BOARD FOR WHAT IS NORMALLY 9600 BAUD. A WESTERN DIGITAL TR-1602-B
+/ OR EQUIVALENT UART IS REQUIRED TO SUPPORT 19200 BAUD; MOST OF THE RECENT
+/ PRODUCTION DEC M8655 BOARDS USE THE SMC COMM 2017 UART WHICH MEETS OR EXCEEDS
+/ THIS REQUIREMENT. EARLY M8655 BOARDS USE GI UARTS IN CERAMIC PACKAGES WHICH
+/ *CANNOT* BE USED AT 19200 BAUD (MANY ARE FLAKY AT 9600 BAUD!).
+
+/ RECEIVE BAUD RATE SHOULD BE IDENTICAL TO TRANSMIT BAUD RATE. (DO NOT SET THE
+/ RECEIVE=150 BAUD SWITCH!)
+\f/ OTHER INTERFACES:
+
+/ DKC-8/A (8/A OPTION BOARD #1) INTERFACES SHOULD BE SETUP AS PER THE KL8-J/A
+/ SPECIFICATIONS INCLUDING THE REQUIREMENTS OF THE UART. SOME DEC DOCUMENTATION
+/ INDICATED A PROHIBITION ON THE USE OF 19200 BAUD, BUT THIS IS OBVIATED BY THE
+/ USE OF THE SAME UARTS AS IN THE KL8-J/A.
+
+/ EARLIER DEVICES SUCH AS PT08, DP-12, KL-8/F OR DC02 (CHANNEL ZERO ONLY) SHOULD
+/ WORK CORRECTLY AS FACTORY WIRED (MOST OF THESE DEVICES DO NOT SUPPORT OPTIONS
+/ KERMIT-12 WOULD REQUIRE TO BE DISABLED ANYWAY. THESE INCLUDE PARITY
+/ GENERATION, FRAMING ERROR DETECTION, ETC.). TO UTILIZE THESE DEVICES, THE
+/ ASSEMBLY PARAMETERS FOR USER DEVICES AND THEIR RESPECTIVE DEVICE CODE VALUES
+/ SHOULD BE GIVEN DURING ASSEMBLY (SEE ASSEMBLY INSTRUCTIONS). PROPER DEVICE
+/ CODE VALUES MUST BE OBTAINED FOR THE SELECTED INTERFACE, AS THERE ARE MANY
+/ ACTUAL POSSIBILITIES. (DP-12 DEVICES ARE GENERALLY DEVICE 40/41; PT08/DC02
+/ INTERFACES ARE GENERALLY DEVICE 11/12, ETC.)
+\f/ ASSEMBLY INSTRUCTIONS.
+
+/ KERMIT-12 CAN BE ASSEMBLED BY EITHER OF TWO METHODS:
+
+
+/ P?S/8 METHOD:
+
+/ ASSUMING THE EXTENDED-LENGTH FILE KERM12 IS THE SOURCE FILE, THE FOLLOWING
+/ COMMAND WILL PRODUCE A FULLY ORNAMENTED LISTING:
+
+/ .PAL KB1,KB2,KB3,KB4<KERM12(ACEJLMNPQSX8)
+
+/ OPTION SWITCH BREAKDOWN:
+
+/ /A ALL SYMBOLS IN SYMBOL PRINTOUT.
+
+/ /C OPTIMIZE CORE DURING ASSEMBLY FOR MORE SYMBOLS, LESS BUFFERS.
+/ THIS OPTION SHOULD BE DELETED IF MORE THAN 8K IS AVAILABLE FOR
+/ ASSEMBLY.
+
+/ /E FORGET LITERAL BOUNDARIES WHEN LEAVING THE CURRENT PAGE.
+
+/ /J *DO NOT* TERMINATE TEXT STRINGS WITH EXTRA ZERO WORD.
+
+/ /L PERFORM SECOND-PASS LISTING.
+
+/ /M CHAIN TO MAP FOR BITMAP OUTPUT AT END OF ASSEMBLY.
+
+/ /N ENABLE NEATNESS ADORNMENTS TO LISTING OUTPUT.
+
+/ /P ENABLE PRINTER-ORIENTED (WIDE MODE) LISTING OUTPUT.
+
+/ /Q ENABLE LITERALS ONLY, GENERATED LINKS ARE ERRORS.
+
+/ /S ENABLE SYMBOL TABLE PRINTOUT.
+
+/ /X ENABLE CROSS-REFERENCE OUTPUT AT END OF ASSEMBLY.
+
+/ /8 ENABLE FULL SYMBOL TABLE INCLUDING LINC MODE CROSS ASSEMBLY.
+
+/ THE NUMBER OF BINARY FILES REQUIRED (KB1, KB2, KB3, ETC.) IS TO BE DETERMINED
+/ AT ASSEMBLY TIME, AS KERMIT-12 WILL TEND TO GROW LARGER AS FEATURES ARE ADDED.
+
+/ P?S/8 PAL IS THE PREFERRED METHOD OF ASSEMBLING K12MIT DURING DEVELOPMENT DUE
+/ TO SUPERIOR ERROR DIAGNOSTICS AND OVERALL SPEED. K12MIT COULD GROW TO A SIZE
+/ BEYOND THE CAPABILITIES OF OS/8 CREF. THIS LIMITATION CANNOT APPLY TO THE
+/ P?S/8 DEVELOPMENT ENVIRONMENT.
+
+/ P?S/8 PAL CAN PRODUCE A LISTING OF K12MIT, BUT THE BINARY FILES CREATED BY THE
+/ ASSEMBLY MUST BE TRANSFERRED TO AN OS/8 ENVIRONMENT FOR USE, SINCE K12MIT (AS
+/ SPECIFICALLY WRITTEN) IS FOR THE OS/8 FAMILY OF SYSTEMS ONLY.
+
+/ NOTE: P?S/8 IS *NOT* A DEC PRODUCT; IT IS SOLD COMMERCIALLY AND IS AVAILABLE
+/ FREE OF CHARGE (EXCEPT FOR MEDIA HANDLING CHARGES, ETC.) *ONLY* TO QUALIFIED
+/ INSTITUTIONS. CONTACT CJL FOR ADDITIONAL INFORMATION ON ACQUIRING P?S/8.
+\f/ OS/8 FAMILY OF SYSTEMS METHOD:
+
+/ K12MIT.PA CAN BE ASSEMBLED WITH PAL8 VERSION B0 WHICH IS AVAILABLE FROM DECUS
+/ AS PART OF THE OS/278 RELEASE. PAL8 VERSION B0 WILL RUN ON ANY OS/8 FAMILY
+/ SYSTEM, AS IT HAS NO HARDWARE DEPENDENCIES BEYOND THE ORIGINAL PDP-8
+/ REQUIREMENT (NO BSW OR IAC ROTATE OR CAF OR R3L INSTRUCTIONS AS WAS INTENDED).
+/ THIS ALSO APPLIES TO CREF VERSION B0 WHICH IS REQUIRED WHEN A CROSS-REFERENCE
+/ IS REQUESTED. PAL8 VERSION B0 AND CREF VERSION B0 ARE AVAILABLE AS PART OF
+/ THE KERMIT-12 DISTRIBUTION AS K12PL8.ENC AND K12CRF.ENC RESPECTIVELY. SEE THE
+/ DOCUMENTATION OF K12DEC FOR INFORMATION ON PRODUCING PAL8.SV AND CREF.SV FROM
+/ THESE ENCODED FILES.
+
+/ ASSUMING CCL IS ENABLED, THE FOLLOWING COMMAND WILL PRODUCE A BINARY AND FULLY
+/ ORNAMENTED LISTING:
+
+/ .PAL DEV:K12MIT.BN,DEV:K12MIT.LS,DEV:KSCR.TM<DEV:PARAM.PA,DEV:K12MIT.PA(CEFMW)
+
+/ DEV: IS THE APPLICABLE DEVICE WHERE THE FILES RESIDE. STANDARD EXTENSIONS
+/ ARE ASSUMED (.BN FOR BINARY, .LS FOR LISTING, .PA FOR PAL SOURCE). THE
+/ KSCR.TM TEMPORARY OUTPUT FILE SPECIFICATION IS OPTIONAL, BUT IS DEFAULTED TO
+/ SYS:CREFLS.TM IF NOT EXPLICITLY GIVEN. MANY SYSTEM DEVICES ARE TOO SMALL TO
+/ SUPPORT THIS TEMPORARY FILE, THUS THE FILE MAY BE DIRECTED TO ANOTHER
+/ AVAILABLE DEVICE WITH SUFFICIENT SPACE.
+
+/ THE PARAM.PA FILE IS OPTIONAL AND USED TO PASS SHORT USER PARAMETERS, ETC. TO
+/ THE ASSEMBLY.
+
+/ OPTION SWITCH BREAKDOWN:
+
+/ /C CHAIN TO CREF.SV TO PRODUCE A CROSS-REFERENCED LISTING FILE.
+
+/ /E GENERATED LINKS ARE ERRORS.
+
+/ /F *DO NOT* TERMINATE TEXT STRINGS WITH EXTRA ZERO WORD.
+
+/ /M USE MAMMOTH SYMBOL TABLE OPTION FOR CREF.
+
+/ /W FORGET LITERAL BOUNDARIES WHEN LEAVING THE CURRENT PAGE.
+
+/ LOADING INSTRUCTIONS:
+
+/ .LOAD DEV:K12CLR,K12MIT.BN THIS LOADS THE BINARY CLEAR AND KERMIT
+/ .SAVE DEV K12MIT.SV=1 THIS SAVES THE CORE IMAGE
+
+/ THE JOB STATUS WORD (=1) INDICATED THAT K12MIT.SV LOADS INTO 10000-11777, BUT
+/ SHOULD NOT BE SAVED/RESTORED WHEN THE USR IS LOADED OVER THIS AREA OR
+/ DISMISSED (THE USR IS ACTUALLY NEVER DISMISSED IN NORMAL K12MIT OPERATION).
+/ OTHER BITS MAY BE SET AT THE USER'S OPTION, BUT ARE UNNECESSARY; THE BIT
+/ INDICATED SERVES ONLY TO REDUCE SYSTEM OVERHEAD REGARDING THE DISPOSITION OF
+/ 10000-11777. THE BINARY FILE K12CLR.BN (CREATED BY ASSEMBLING K12CLR.PA)
+/ LOADS ZEROES INTO ALL OF MEMORY TO CREATE A "CLEAN" CORE IMAGE FILE, WHICH
+/ MAKES THE ENCODED BINARY FILE SMALLER DUE TO REPEAT COMPRESSION.
+\f/ PASSING SHORT PARAMETER FILES.
+
+/ WHEN INSERTING A SHORT USER MODIFICATION FILE IN THE INPUT STREAM (PARAM.PAL)
+/ THE FOLLOWING SHOULD BE NOTED:
+
+/ ALWAYS PUT THE SHORT PARAMETER FILE (CONTAINING EQUATED SYMBOLS SUCH AS
+/ USER=1, ETC.) IN FRONT OF K12MIT.PAL.
+
+/ IF TTY: IS USED FOR DIRECT TYPE-IN OF THESE PARAMETERS, THE INFORMATION NEED
+/ ONLY BE TYPED ENDING WITH <^Z> DURING PASS 1. SUBSEQUENT PASSES REQUIRE THE
+/ ENDING <^Z> ONLY. IF THIS METHOD IS USED, A LISTING WITHOUT THE USER INPUT
+/ WHICH DID THE CUSTOMIZING OF KERMIT-12 CAN BE CREATED. NOTE: IF BINARY IS
+/ GENERATED BY THE CONTENTS OF THE PARAMETER FILE (SUCH AS USE OF THE LOCAL TEXT
+/ MESSAGE, ETC.), THE INFORMATION MUST BE TYPED IN DURING PASS 2. THE PASS 3
+/ LISTING MAY CONTAIN THE INFORMATION IF SO DESIRED, REQUIRING A REPETITION OF
+/ THE INPUT. PASS 1 INPUT OF THE INFORMATION IS EFFECTIVELY IGNORED, AS NO
+/ DEFINITIONS ARE CREATED ('LCLMSG' IS DEFINED ELSEWHERE, ETC.).
+
+/ EXPERIENCED PDP-8 USERS NEW TO PAL8 VERSION B0 TAKE SPECIAL NOTICE:
+
+/ DUE TO HARDWARE LIMITATIONS OF THE DECMATES, THE KEYBOARD FLAG WILL BE CLEARED
+/ DURING PDP-8 PAL8 B0 OPERATION. THE KL8E TTY: HANDLER WILL NO LONGER BE ABLE
+/ TO BUFFER <^Z> DURING THE ASSEMBLY; YOU MUST WAIT UNTIL THE HANDLER ACCESSES
+/ THE KEYBOARD ON EACH PASS *THEN* PRESS <^Z> TO CONTINUE THE ASSEMBLY.
+
+
+/ CREATING A CUSTOM MESSAGE FROM THE PARAMETER FILE.
+
+/ IF SO DESIRED, A CUSTOM LOCAL HEADER MESSAGE MAY BE ADDED BY INSERTING THE
+/ FOLLOWING INTO THE PARAMETER FILE:
+
+/ BUFFLD= 10 /THESE PROBABLY
+/ FILBUFF=2000 /WON'T CHANGE!
+
+/ GENMSG= 0 /DON'T GENERATE STANDARD (NULL) MESSAGE
+/ UMSG= 0 /DON'T GENERATE STANDARD (DUMMY) USER MESSAGE
+
+/ FIELD BUFFLD%10 /FIELD FOR TEXT MESSAGE
+
+/ *FILBUFFER /LOCAL MESSAGE LOADS THERE
+
+/LCLMSG,TEXT "%^I^NSERT ^L^OCAL ^M^ESSAGE ^H^ERE!%"
+
+/ ZBLOCK LCLMSG+40-. /ZERO REST OF MESSAGE AREA
+
+/ TEXT IS IN UPPER/LOWER-CASE SIXBIT WITH '^' MEANING SHIFT CASE (INITIALLY
+/ LOWER-CASE) AND '%' MEANING <CR>, <LF>.
+\f/ OTHER METHODS:
+
+/ KERMIT-12 *CANNOT* BE ASSEMBLED BY PAL10 (LAST KNOWN VERSION OF PDP-8
+/ CROSS-ASSEMBLER FOR TOPS10 (142)) BECAUSE IT LACKS CERTAIN FEATURES:
+
+/ DOES NOT SUPPORT 'RELOC' PSEUDO-OP.
+
+/ DOES NOT SUPPORT PAGE ZERO REDEFINE (CAUSES "Z" ERROR ON SOURCE FILES WHICH
+/ DON'T HAVE ERRORS WHEN ASSEMBLED BY EITHER P?S/8 PAL OR OS/8 PAL8).
+
+/ INCORRECTLY HANDLES 'ZBLOCK' PSEUDO-OP (LEADS TO "Q" ERROR ON SOURCE FILES
+/ WHICH DON'T HAVE ERRORS WHEN ASSEMBLED BY EITHER P?S/8 PAL OR OS/8 PAL8).
+
+/ DOES NOT SUPPORT LITERAL "FORGETTING" (P?S/8 PAL OPTION /E OR OS/8 PAL8 OPTION
+/ /W) WHICH IS REQUIRED FOR DEFINING OVERLAY AREAS, ETC.
+
+/ DOES NOT SUPPORT TEXT WITHOUT ZERO WORD FILL (P?S/8 PAL OPTION /J OR OS/8 PAL8
+/ OPTION /F FULFILLS THIS REQUIREMENT) WHICH IS REQUIRED FOR TEXT MESSAGES.
+
+
+/ P?S/8 PAL IS AN IMPROPER SUPERSET OF PAL10. PAL10 SUPPORTS MACRO-8 MODE AS AN
+/ OPTION AND AUTOMATIC FIELD DUMP BITMAPS; ALL OTHER KNOWN PAL10 FEATURES EXIST
+/ IN P?S/8 PAL INCLUDING THE SUPPORT OF THE AUTOMATIC FIELD DUMP BITMAP
+/ PSEUDO-OPS ('ENBITS' AND 'NOBITS').
+
+/ OS/8 PAL8 (VERSION B0) IS A SUBSET OF P?S/8 PAL WHICH HAS SEVERAL SYNTACTIC
+/ QUIRKS (WHICH ARE AVOIDABLE, BUT NONETHELESS ARE INCOMPATIBLE WITH BOTH P?S/8
+/ PAL AND PAL10 IN CERTAIN MINOR WAYS); REGARDLESS, PAL8 LACKS THE
+/ COMPATIBILITY PROBLEMS OF PAL10.
+
+/ MAINTAINING SOURCE COMPATIBILITY.
+
+/ KERMIT-12 SOURCE FILE CONVENTIONS DEMAND THE USE OF THE COMMON SUBSET OF P?S/8
+/ PAL AND OS/8 PAL8 (VERSION B0). CERTAIN FORMS OF STATEMENTS SHOULD BE
+/ AVOIDED:
+
+/ TAD /NOT LEGAL IN PAL8
+/ 0+TAD /NOT LEGAL IN PAL10, AND POSSIBLY WRONG IN PAL8
+/ TAD (3)+1 /GENERATES SAME AS "TAD (3+1)" IN PAL8
+/ -A!-B /UNARY OPERATOR HANDLED WRONG IN PAL8
+/ I+N /NOT LEGAL IN PAL8
+/ N+I /NOT LEGAL IN PAL8
+/ I I /NOT LEGAL IN PAL8
+
+/ THIS REQUIREMENT IS EASILY MET BY KERMIT-12 AS MOST OF THESE CASES ARE
+/ ESOTERIC QUIRKS AND NOT NEEDED FOR THIS ASSEMBLY.
+
+/ THE RESTRICTIONS OF PAL10 (EVEN THOUGH IT HAS OTHER DESIRABLE FEATURES, MOST
+/ OF WHICH IT SHARES WITH P?S/8 PAL) ARE TOO SEVERE TO ALLOW USABLE ASSEMBLY OF
+/ THIS PROGRAM. BETTER CROSS-ASSEMBLERS MAY EXIST ELSEWHERE WHICH ARE
+/ SOURCE-COMPATIBLE WITH KERMIT-12.
+\f/ USE OF P?S/8 LANGUAGE EXTENSIONS.
+
+/ P?S/8 OFFERS SEVERAL USEFUL FEATURES OVER PAL8 (AND PAL10) WHICH MAY BE USEFUL
+/ FOR ASSEMBLY DEVELOPMENT OF KERMIT-12. THESE INCLUDE LANGUAGE ELEMENTS SUCH
+/ AS "TAD (3)+1" HANDLED CORRECTLY, OR PSEUDO-OPS SUCH AS "PAUSE EXPR" WHERE THE
+/ VALUE OF 'EXPR' WILL BE DISPLAYED ON THE SYSTEM CONSOLE DURING THE ASSEMBLY
+/ WHEN THAT POINT IN THE ASSEMBLY IS REACHED. TO ACCESS THESE FEATURES AND
+/ STILL PROVIDE COMPATIBILITY WITH PAL8 (VERSION B0), THE FOLLOWING CODING
+/ TECHNIQUE IS SUGGESTED:
+
+
+/ IFNDEF PQS <PQS=0> /WILL BE 0 ON PAL8, PAL10
+
+
+/ IFZERO PQS < /DO PAL8, ETC. STUFF HERE
+
+/ FOO= (TABLE) /DEFINE POINTER TO ADDRESS OF TABLE
+
+/ TAD FOO-1 /GET (POINTER TO ADDRESS OF TABLE)-1
+/ DCA XR1 /SETUP AUTO-INDEX REGISTER
+
+/ WISH WE HAD PAUSE AND ERROR PSEUDO-OPS IN PAL8.
+
+/ > /END OF PAL8, ETC. VARIANT
+
+
+/ IFNZRO PQS < /DO P?S/8 PAL STUFF HERE
+
+/ TAD (TABLE)-1 /GET (POINTER TO ADDRESS OF TABLE)-1
+/ DCA XR1 /SETUP AUTO-INDEX REGISTER
+
+/ IFNDEF PASS <PASS=0>/DEFINE PASS VARIABLE
+
+/ PASS= PASS+1 /BUMP EVERY ASSEMBLER PASS
+
+/ PAUSE PASS /DISPLAY PASS NUMBER
+
+/ IFNZRO .&4000 <
+
+/ ERROR 1234 /DISPLAY ERROR MESSAGE IF THERE ARE PROBLEMS
+
+/ >
+
+/ > /END OF P?S/8 PAL VARIANT
+
+
+/ THIS ALLOWS TEMPORARY DEVELOPMENT FEATURES OR PERMANENT ELEMENTS WHICH MAY BE
+/ MORE ELEGANTLY EXPRESSED IN P?S/8 PAL VARIANT CODING, WHILE THE PAL8 (VERSION
+/ B0) VERSION CAN STILL BE USED (VIA DIRECT OCTAL, MULTIPLE EQUATE STATEMENTS,
+/ CONDITIONAL FLUSH AS IN THE ABOVE EXAMPLE, ETC. AS NECESSARY) FOR STANDARD
+/ ASSEMBLY OF KERMIT-12.
+\f/ ASSEMBLY PARAMETERS.
+
+/ SEVERAL PARAMETERS MUST BE CHANGED WITHIN K12MIT.PA (OR PASSED TO THE
+/ ASSEMBLER VIA A SHORT FILE INSERTED INTO THE ASSEMBLY STREAM BEFORE THE MAIN
+/ FILE):
+
+/ SETTING KEY= [RECEIVE IOT CODE FOR CONSOLE KEYBOARD] DEFINES THE CONSOLE
+/ KEYBOARD IOT CODE (DEFAULT IS 03).
+
+/ SETTING TTY= [TRANSMIT IOT CODE FOR CONSOLE OUTPUT] CHANGES THE CONSOLE
+/ PRINTER IOT CODE (DEFAULT IS 04).
+
+/ THE FOLLOWING DEFINITIONS ARE ESSENTIALLY FOR KL8-TYPE DEVICES ONLY, AS THE
+/ CODE DEMANDS KL8 HARDWARE COMPATIBILITY. MODELS OTHER THAN PDP-8 (SUCH AS
+/ DECMATE) GENERALLY EITHER PLACE RESTRICTIONS ON AVAILABLE INTERFACES (OTHER
+/ SOFTWARE DESIGNATES A SERIAL INTERFACE AS A LOGICAL PRINTER PORT; DECMATES
+/ SUPPORT A FIRMWARE "PRINT SCREEN" KEY WHICH ENFORCES THIS.), OR DON'T ALLOW
+/ USABLE PLUG-IN OPTIONS.
+
+/ IGNORING BUILT-IN DECMATE SUPPORT, THE FOLLOWING PARAMETERS ARE ACTIVE:
+
+/ SETTING DEV30= 1 CREATES DEVICE 30/31 REMOTE LINE IOTS.
+
+/ SETTING DEV40= 1 CREATES DEVICE 40/41 REMOTE LINE IOTS.
+
+/ SETTING LEDERLE=1 CREATES DEVICE 43/44 REMOTE LINE IOTS (AND A CUSTOM
+/ HEADER).
+
+/ SETTING ORIGNAL=1 CREATES DEVICE 33/34 REMOTE LINE IOTS (ORIGINAL
+/ SETTINGS).
+
+/ SETTING SPRINT= 1 CREATES DEVICE 32/33 REMOTE LINE IOTS (SERIAL PRINTER
+/ PORT).
+
+/ SETTING USER= 1 CREATES DEVICE XX/XY REMOTE LINE IOTS.
+
+/ IF NONE OF THESE ARE SET, THEN DEV40=1 APPLIES BY DEFAULT.
+
+
+
+/ SETTING USER= 1 REQUIRES THE USER TO DEFINE TWO ADDITIONAL VALUES:
+
+/ XX= [RECEIVE IOT DEVICE CODE] (DEFAULT IS 40).
+
+/ XY= [TRANSMIT IOT DEVICE CODE] (DEFAULT IS 41).
+\f/ SETTING SPRINT= 1 INHIBITS THE BUILT-IN CHECK FOR DECMATE OPERATION AND
+/ USES THE SERIAL PRINTER PORT FOUND ON ALL
+/ WPS-8-CONFIGURED PDP-8/E, PDP-8/A CONFIGURATIONS,
+/ VT-78, AND ALL DECMATES (VT-278, DECMATE II, III,
+/ III+) FOR REMOTE COMMUNICATIONS.
+
+/ THE USE OF THE SERIAL PRINTER PORT FOR REMOTE COMMUNICATIONS PURPOSES MAY BE
+/ PROBLEMATIC DUE TO CONSIDERATIONS SUCH AS THE RS-232 CONNECTION TO THE PRINTER
+/ IS A MODEM (DCE), RATHER THAN A TERMINAL (DTE) (DECMATE II, ETC. REQUIRES A
+/ GENDER CHANGER.), OR THE SOFTWARE DESIGNATION OF THE PORT AS BEING ALLEDGEDLY
+/ *ONLY* FOR A PRINTER, SUCH AS WHEN CERTAIN SYSTEMS SUPPORT THE "PRINT SCREEN"
+/ KEY AS A SCREEN DUMP TO THE SERIAL PRINTER PORT, ETC. THESE ISSUES ARE NOT
+/ RELEVANT TO KERMIT-12 OPERATION, AS THE "PRINT SCREEN" KEY IS NOT SUPPORTED BY
+/ KERMIT-12 IN THIS CONFIGURATION AS SUCH (FUTURE VERSIONS COULD REDEFINE THE
+/ "PRINT SCREEN" KEY TO SUCH FUNCTIONS AS DUMP SCREEN TO A FILE, ETC.).
+
+/ SETTING BRATE= NN SETS THE DEFAULT BAUD RATE (FOR SYSTEMS THAT SUPPORT
+/ THIS FEATURE) FROM A TABLE OF VALUES (0-15) AS
+/ FOLLOWS:
+
+/ NN BAUD RATE
+
+/ 00 50
+/ 01 75
+/ 02 110
+/ 03 134.5
+/ 04 150
+/ 05 300
+/ 06 600
+/ 07 1200
+/ 08 1800
+/ 09 2000
+/ 10 2400
+/ 11 3600
+/ 12 4800
+/ 13 7200
+/ 14 9600
+/ 15 19200
+
+/ SETTING ESCAPE= NNNN SETS THE DEFAULT ESCAPE CHARACTER TO NNNN.
+
+/ SETTING FLOW= 1 ENABLES FLOW-CONTROL BY DEFAULT.
+/ SETTING FLOW= 0 DISABLES FLOW-CONTROL BY DEFAULT.
+
+/ SETTING FMODE= 0177 SETS THE DEFAULT FILE MODE TO ASCII.
+/ SETTING FMODE= 4377 SETS THE DEFAULT FILE MODE TO BINARY.
+\f/ SETTING GENMSG= 0 CAUSES NO BINARY TO BE GENERATED WHERE 'LCLMSG' IS
+/ DEFINED. THIS ALLOWS THE PARAMETER FILE (PARAM.PA) OR
+/ SUBSEQUENT OVERLAY BY K12PCH.BN TO DEFINE THE LOCAL
+/ HEADER MESSAGE. THIS PARAMETER SHOULD NOT BE SET
+/ UNLESS ONE OF THESE METHODS IS USED, ELSE THE HEADER
+/ MESSAGE WILL BE UNDEFINED. (NOTE: IF K12PCH.BN
+/ GENERATES A HEADER MESSAGE, THEN THIS PARAMETER IS
+/ UNIMPORTANT, AS K12PCH.BN OVERLAYS THE BINARY OF
+/ K12MIT.)
+/ SETTING GENMSG= 1 CAUSES A HEADER MESSAGE TO BE GENERATED. THE CONTENTS
+/ OF THE MESSAGE ARE CREATED BY SETTING LEDERLE=1 OR
+/ UMSG=1. IF EITHER IS ZERO, A DEFAULT (NULL) MESSAGE
+/ WILL BE GENERATED.
+
+/ SETTING ICLOSE= 1 ENSURES A <^Z> AT <EOF> OF ASCII INPUT FILES BY
+/ DEFAULT.
+/ SETTING ICLOSE= 0 CLOSES ASCII INPUT FILES AS RECEIVED BY DEFAULT.
+
+/ SETTING INIECHO=0 CAUSES A FULL-DUPLEX CONNECT MODE STATE WITH NO LOCAL
+/ CHARACTER ECHOING BY DEFAULT.
+/ SETTING INIECHO=1 CAUSES A HALF-DUPLEX CONNECT MODE STATE WITH LOCAL
+/ ECHO OF ALL CONSOLE CHARACTERS BY DEFAULT.
+
+/ SETTING LOWER= 0 ALLOWS LOWER-CASE CONSOLE OUTPUT BY DEFAULT.
+/ SETTING LOWER= -40 FOLDS LOWER-CASE CONSOLE OUTPUT TO UPPER-CASE BY
+/ DEFAULT.
+
+/ SETTING OCLOSE= 0 PREVENTS DEFAULT SENDING OF <^Z> AT <EOF> OF ASCII
+/ FILES.
+/ SETTING OCLOSE= 1 CAUSES <^Z> TO BE SENT AT <EOF> OF ASCII FILES BY
+/ DEFAULT.
+
+/ SETTING PORT= 0 CAUSES THE DP-278 PORT 0 TO BE USED IF KERMIT-12 IS
+/ RUN ON A DECMATE 1 (ASSUMING SPRINT=0).
+/ SETTING PORT= 1 CAUSES THE DP-278 PORT 1 TO BE USED IF KERMIT-12 IS
+/ RUN ON A DECMATE 1 (ASSUMING SPRINT=0).
+
+/ SETTING RETCNT= NNNN SETS THE PACKET RETRY COUNT TO NNNN BY DEFAULT.
+/ SETTING UMSG= 0 PREVENTS THE LOCAL USER HEADER MESSAGE FROM BEING
+/ GENERATED.
+/ SETTING UMSG= 1 CAUSES THE LOCAL USER HEADER MESSAGE TO BE GENERATED.
+/ THE PARAMETER GENMSG=1 IS REQUIRED TO BE SET. THE
+/ SOURCE MUST BE MODIFIED LOCALLY TO CHANGE THE MESSAGE
+/ TEXT FROM "INSERT LOCAL USER MESSAGE HERE!," AS THIS
+/ IS THE DEFAULT CONTENTS.
+\f/ KERMIT-12 FOR THE FAMILY OF 12-BIT DEC MACHINES.
+
+/ BRIEF USAGE DESCRIPTION.
+
+/ KERMIT-12 IS AN IMPLEMENTATION OF THE KERMIT PROTOCOL FOR THE FAMILY OF 12-BIT
+/ DEC (AND COMPATIBLE) MACHINES GENERALLY KNOWN AS PDP-8 OR DECMATE.
+
+/ AS OF THE CURRENT IMPLEMENTATION, THE FOLLOWING COMMANDS ARE EFFECTIVE:
+
+/ 1. CONNECT (TO REMOTE SYSTEM AS TERMINAL).
+
+/ 2. SEND FILESPEC (TO REMOTE RECEIVER OR SERVER).
+
+/ 3. RECEIVE FILESPEC (FROM REMOTE SENDER).
+
+/ 4. GET FILESPEC (FROM REMOTE SERVER).
+
+/ 5. FINISH (SERVING).
+
+/ 6. SETUP (ON DECMATE II/III/III-PLUS ONLY). **** NOT IMPLEMENTED ****
+
+/ 7. EXIT (TO OPERATING SYSTEM).
+
+/ 8. HELP (DISPLAYS HELP MESSAGE).
+
+/ FILESPEC MAY BE ANY LOCAL (OS/8) FILE-STRUCTURED DEVICE:FILENAME.EXTENSION,
+/ WHERE THE FILENAME AND EXTENSION WILL BE TRUNCATED TO 6 ALPHANUMERICS AND 2
+/ ALPHANUMERICS RESPECTIVELY, AS NECESSARY (THIS IS REFERRED TO AS 6.2 FILENAME
+/ FORMAT). THE DEVICE: FIELD IS OPTIONAL; ALL COMMANDS USING THE DEVICE:
+/ FIELD FOR LOCAL DEVICE SPECIFICATION WILL USE THIS DEVICE AS THE SOURCE OR
+/ DESTINATION AS NECESSARY FOR THE LOCAL FILES. IF THE DEVICE: FIELD IS
+/ OMITTED, THE DEFAULT DEVICE DSK: WILL BE USED. THE ACTUAL DEVICE USED MAY BE
+/ SELECTED BEFORE INVOKING KERMIT-12 BY USING THE OS/8 ASSIGN COMMAND:
+
+/ .ASSIGN DEV DSK
+
+/ WHERE DEV IS ANY AVAILABLE FILE-STRUCTURED DEVICE.
+
+/ KERMIT-12 USES AN UNUSUAL SCHEME FOR ITS PROMPT: THE ACTUAL DEFAULT PROMPT
+/ TEXT IS PARTIALLY TAKEN FROM THE ACTUAL MACHINE KERMIT-12 IS CURRENTLY
+/ EXECUTING ON. FOR EXAMPLE, IF KERMIT-12 HAS DETERMINED THE CPU TYPE AS
+/ PDP-8/E, THE PROMPT WILL BE:
+
+/ KERMIT-8/E>
+
+/ THIS ALLOWS KERMIT-12 USERS (WITH DIFFERENT CPU-TYPE MACHINES) TO DISTINGUISH
+/ MESSAGES ORIGINATING FROM THE RESPECTIVE SYSTEMS. FUTURE VERSIONS WILL
+/ SUPPORT USER PROMPT STRINGS TO ALLOW MORE DISTINCTIVE SYSTEM MESSAGES.
+
+/ THE HELP OR CONNECT COMMANDS MAY BE USED TO DETERMINE THE CURRENT CONNECT MODE
+/ ESCAPE CHARACTER.
+\f/ COMMAND RESTRICTIONS.
+
+/ THE SEND COMMAND ALLOWS DEVICE:FILENAME.EXTENSION (6.2) WITH WILD-CARD
+/ SUBSTITUTION. A * MAY BE GIVEN FOR AN ENTIRE FIELD (EITHER FILENAME OR
+/ EXTENSION OR BOTH) ONLY. A ? WILL MATCH ANY SINGLE CHARACTER WHICH MUST
+/ EXIST IN THE ACTUAL FILENAME OR EXTENSION, UNLESS RIGHT-MOST IN THE FIELD.
+/ ALL MATCHING FILES WILL BE SENT. NO OUTBOUND FILENAME (AS-NAME) FACILITY
+/ EXISTS AT THIS TIME.
+
+/ THE RECEIVE COMMAND ALLOWS OPTIONAL DEVICE: ONLY. *THE FILENAME AND
+/ EXTENSION ARE NOT ALLOWED*. NAMES OF RECEIVED FILES WILL BE MODIFIED IF
+/ NECESSARY TO CONFORM TO THE 6.2 FORMAT. *IMPLEMENTATION RESTRICTION* :
+/ CERTAIN REMOTE FILENAMES CONTAINING NON-ALPHANUMERIC CHARACTERS MAY CAUSE
+/ KERMIT-12 TO HASTILY ABORT THE TRANSMISSION AND RETURN TO COMMAND LEVEL.
+
+/ THE GET COMMAND ALLOWS OPTIONAL DEVICE: TO DETERMINE DESTINATION OF THE
+/ INCOMING FILES. THE OUTBOUND FILESPEC MUST CONFORM TO LOCAL CONVENTIONS
+/ (FILENAME AND EXTENSION ARE NOT LIMITED TO 6.2 FORMAT; THE DEVICE: FIELD
+/ WILL NOT BE SENT TO THE REMOTE KERMIT UNLESS IT IS ILLEGAL WITHIN OS/8
+/ SPECIFICATIONS, SUCH AS TOO MANY DEVICE LETTERS. IN THIS CASE, THE DEFAULT
+/ DEVICE DSK: APPLIES, AND THE ENTIRE "DEVICE" FIELD IS SENT ALONG WITH ANY
+/ FILENAME AND EXTENSION). CERTAIN REMOTE SYSTEMS ARE INCOMPATIBLE WITH THIS
+/ IMPLEMENTATION, AS IMBEDDED SPACES OR NON-ALPHANUMERIC CHARACTERS ARE NOT
+/ ALLOWED, EVEN THOUGH THEY MAY BE REQUIRED ON THE REMOTE SYSTEM. WILD-CARD
+/ CHARACTERS ARE ALLOWED, BUT ONLY AS SPECIFIED IN THE SEND COMMAND ABOVE.
+
+/ <^X> OR <^Z> CAN BE USED TO ABORT KERMIT TRANSMISSIONS (EVENTUALLY) BUT IS
+/ NORMALLY A SLOW PROCESS, SINCE THE CHECKING IS DONE BY A SOFTWARE TIMEOUT
+/ SCHEME. AT THE PRESENT TIME, THERE IS NO DISTINCTION BETWEEN THESE THO
+/ CHARACTERS, SO IT IS NOT POSSIBLE TO ABORT A SINGLE FILE; THE ENTIRE BATCH OF
+/ FILES INVOLVED IN THE TRANSFER IS ABORTED.
+
+/ DECMATE II/III/III-PLUS CONSIDERATIONS:
+
+/ FUNCTION KEYS SEND <ESC> SEQUENCES SPECIFIED BY SLUSHWARE/FIRMWARE. ALL SOFT
+/ FUNCTION KEYS ARE THEREFORE INEFFECTIVE (EXCEPT FOR HOLD SCREEN WHICH ALWAYS
+/ WORKS).
+
+/ CONNECT MODE RUNS IN 8-BIT MODE.
+
+/ THE COMPOSE KEY IS ENABLED FOR USE WITH A LOADED COMPOSE TABLE.
+
+/ ANY VALID DECMATE II/III/III-PLUS CHARACTER SET IS ALLOWED WHILE IN CONNECT
+/ MODE (MCS TCS LINE, ETC.). ALL <ESC> SEQUENCES ARE PASSED TO THE
+/ SLUSHWARE/FIRMWARE UNMODIFIED.
+
+/ KEYBOARD UPPER-CASE LOCK WILL ALWAYS BE AUTOMATICALLY APPLIED UPON RETURN FROM
+/ CONNECT MODE.
+\f/ DEFINITIONS. /017 CJL
+
+ *200 /FOR DEFINITIONS /047 CJL
+
+/ REMOTE LINE PARAMETERS; SET ONLY ONE AS NECESSARY. /046 CJL
+
+ IFNDEF DEV30 <DEV30= 0> /USE DEVICE 30/31 VALUES
+ IFNDEF DEV40 <DEV40= 0> /USE DEVICE 40/41 VALUES
+ IFNDEF LEDERLE <LEDERLE=0> /USE LEDERLE LABS VALUES
+ IFNDEF ORIGNAL <ORIGNAL=0> /USE ORIGINAL VALUES
+ IFNDEF SPRINT <SPRINT=0> /USE DEVICE 32/33 VALUES
+ IFNDEF USER <USER= 0> /USE USER-DEFINED VALUES
+
+ REMOTE= DEV30+DEV40+LEDERLE+ORIGNAL /SET REMOTE LINE IOT CODE
+ REMOTE= REMOTE+SPRINT+USER /SET REMOTE LINE IOT CODE
+
+ IFZERO REMOTE <DEV40= 1> /DEFAULT TO DEVICE 40/41 VERSION
+
+/ DEV30 PARAMETERS.
+
+ IFNZRO DEV30 <
+
+ IFNDEF REC <REC= 30> /DEVICE 30 INPUT
+ IFNDEF SEN <SEN= 31> /DEVICE 31 OUTPUT
+
+ >
+
+/ DEV40 PARAMETERS (DEFAULT).
+
+ IFNZRO DEV40 <
+
+ IFNDEF REC <REC= 40> /DEVICE 40 INPUT
+ IFNDEF SEN <SEN= 41> /DEVICE 41 OUTPUT
+
+ >
+
+/ LEDERLE PARAMETERS. /038 CJL
+
+ IFNZRO LEDERLE <
+
+ IFNDEF REC <REC= 43> /DEVICE 43 INPUT
+ IFNDEF SEN <SEN= 44> /DEVICE 44 OUTPUT
+ IFNDEF GENMSG <GENMSG=1> /GENERATE LOCAL HEADER MESSAGE
+ IFNDEF UMSG <UMSG= 0> /DON'T GENERATE USER MESSAGE
+
+ >
+
+/ ORIGNAL PARAMETERS.
+
+ IFNZRO ORIGNAL <
+
+ IFNDEF REC <REC= 33> /DEVICE 33 INPUT
+ IFNDEF SEN <SEN= 34> /DEVICE 34 OUTPUT
+
+ >
+\f/ SPRINT PARAMETERS. /046 CJL
+
+ IFNZRO SPRINT <
+
+ IFNDEF REC <REC= 32> /DEVICE 32 INPUT
+ IFNDEF SEN <SEN= 33> /DEVICE 33 OUTPUT
+
+ >
+
+/ USER PARAMETERS.
+
+ IFNZRO USER <
+
+ IFNDEF XX <XX= 40> /DEFAULT TO DEVICE 40
+ IFNDEF XY <XY= 41> /DEFAULT TO DEVICE 41
+ IFNDEF REC <REC= XX> /DEVICE XX INPUT
+ IFNDEF SEN <SEN= XY> /DEVICE XY OUTPUT
+ IFNDEF GENMSG <GENMSG=1> /GENERATE LOCAL HEADER MESSAGE
+ IFNDEF UMSG <UMSG= 1> /GENERATE USER MESSAGE
+
+ >
+
+/ REMOTE LINE IOT DEFINITIONS.
+
+/ RECEIVE DEFINITIONS.
+
+ RKRBIOT=REC^10+6006 /READ REMOTE, CLEAR FLAG
+ RKSFIOT=REC^10+6001 /SKIP ON REMOTE INPUT FLAG
+
+/ TRANSMIT DEFINITIONS.
+
+ RSBIOT= SEN^10+6003 /SET BAUD RATE FROM AC[8-11]
+ RTLSIOT=SEN^10+6006 /TRANSMIT CHARACTER, CLEAR FLAG
+ RTSFIOT=SEN^10+6001 /SKIP ON TRANSMIT FLAG
+
+/ CONSOLE TTY: DEFINITIONS. /017 CJL
+
+/ KEYBOARD DEFINITIONS. /017 CJL
+
+ IFNDEF KEY <KEY= 03> /KEYBOARD DEVICE CODE
+
+ KCCIOT= KEY^10+6002 /CLEAR CONSOLE KEYBOARD FLAG, AC
+ KRBIOT= KEY^10+6006 /READ CONSOLE KEYBOARD BUFFER, CLEAR FLAG
+ KRSIOT= KEY^10+6004 /READ CONSOLE KEYBOARD BUFFER STATIC
+ KSFIOT= KEY^10+6001 /SKIP ON CONSOLE KEYBOARD FLAG
+
+/ TELEPRINTER DEFINITIONS. /017 CJL
+
+ IFNDEF TTY <TTY= 04> /TELEPRINTER DEVICE CODE
+
+ TLSIOT= TTY^10+6006 /PRINT CHARACTER, CLEAR FLAG
+ TSFIOT= TTY^10+6001 /SKIP ON TELEPRINTER FLAG
+\f/ DEFAULT ESCAPE CHARACTER DEFINITION. /025 CJL
+
+ IFNDEF ESCAPE <ESCAPE="]&37> /DEFAULT IS CONTROL-]
+
+/ DEFAULT LOWER-CASE ENABLE DEFINITION. /030 CJL
+
+ IFNDEF LOWER <LOWER= 0/-40> /LOWER-CASE IS ALLOWED AS IS
+ /CHANGE TO -40 IF LOWER-CASE
+ /SHOULD BE FOLDED TO UPPER-CASE
+
+/ DEFAULT RETRY COUNT DEFINITION. /031 CJL
+
+ IFNDEF RETCNT <RETCNT=5> /DEFAULT IS FIVE RETRIES
+
+/ DEFAULT FILE MODE DEFINITION. /031 CJL
+
+ IFNDEF FMODE <FMODE= 4377> /DEFAULT IS ASCII FILE MODE
+ /4377 IS BINARY FILE MODE
+
+/ DEFAULT FLOW-CONTROL MODE DEFINITION. /031 CJL
+
+ IFNDEF FLOW <FLOW= 1> /DEFAULT IS FLOW-CONTROL ENABLED
+
+/ DEFAULT ASCII INPUT FILE <^Z> DISPOSITION. /031 CJL
+
+ IFNDEF ICLOSE <ICLOSE=1> /ENSURE <^Z> AT ASCII <EOF>
+
+/ DEFAULT ASCII OUTPUT FILE <^Z> DISPOSITION. /031 CJL
+
+ IFNDEF OCLOSE <OCLOSE=0> /<^Z> NOT SENT AT ASCII <EOF>
+
+/ DEFAULT LOCAL MESSAGE GENERATION DEFINITIONS. /038 CJL
+
+ IFNDEF GENMSG <GENMSG=1> /DEFAULT IS TO GENERATE A MESSAGE
+ IFNDEF UMSG <UMSG= 0> /DEFAULT IS NO DUMMY USER MESSAGE
+ IFNDEF LEDERLE <LEDERLE=0> /DEFAULT IS NO LEDERLE MESSAGE
+
+/ THE NULL MESSAGE WILL BE GENERATED BY DEFAULT.
+
+/ ECHO DEFINITION. /039 CJL
+
+ IFNDEF INIECHO <INIECHO=0> /DEFAULT IS NO LOCAL ECHO
+
+/ DEFAULT DECMATE I PORT DEFINITION. /050 CJL
+
+ IFNDEF PORT <PORT= 0> /DEFAULT IS PORT ZERO
+
+/ DEFAULT BAUD RATE DEFINITION. /050 CJL
+
+ IFNDEF BRATE <BRATE= 7> /DEFAULT IS 1200 BAUD
+\f/ STATE DEFINITIONS.
+
+ STDAT= "D&137 /DATA
+ STACK= "Y&137 /ACK
+ STNAK= "N&137 /NAK
+ STSIN= "S&137 /SEND-INIT
+ STBRK= "B&137 /BREAK LINK
+ STFIL= "F&137 /FILENAME HEADER
+ STEOF= "Z&137 /END OF FILE OR REPLY
+ STERR= "E&137 /ERROR PACKET
+ STATT= "A&137 /FILE ATTRIBUTES
+ STRIN= "R&137 /RECEIVE-INIT
+ STEOT= "B&137 /BREAK TRANSMISSION
+ STGEN= "G&137 /KERMIT GENERIC COMMAND
+
+/ DEFAULT INIT PARAMETERS.
+
+ DEFCK= "1&177 /DEFAULT 1 CHARACTER CHECKSUM /014 CJL
+ DEFEOL= 15+40 /CR IS DEFAULT <EOL>
+ DEFQCTL= "#&177 /"#" IS DEFAULT QCTL
+
+/ BUFFER DEFINITIONS. /014 CJL
+
+ DECIMAL /MAKE IT EASIER /014 CJL
+
+ DEFMAXL=94 /DEFAULT MAXIMUM PACKET SIZE
+
+ LINSIZ= 32 /KEYBOARD LINE BUFFER SIZE
+
+ OCTAL /BACK TO NORMAL /014 CJL
+
+ BUFSIZE=200 /128 CHARACTER RING BUFFERS /026 CJL
+ /FOR NO-INTERRUPT CONNECT MODE
+\f/ CONTROL CHARACTER DEFINITIONS. /023 CJL
+
+ CNTRLA= "A&37 /<^A> DEFAULT MARK CHARACTER /023 CJL
+ CNTRLB= "B&37 /<^B> /046 CJL
+ CNTRLC= "C&37 /<^C> PROGRAM EXIT CHARACTER /023 CJL
+ CNTRLD= "D&37 /<^D> /046 CJL
+ CNTRLE= "E&37 /<^E> /046 CJL
+ CNTRLF= "F&37 /<^F> /046 CJL
+ CNTRLG= "G&37 /<^G> BELL CHARACTER /023 CJL
+ CNTRLH= "H&37 /<^H> BACKSPACE CHARACTER /023 CJL
+ CNTRLI= "I&37 /<^I> HORIZONTAL TAB CHARACTER /043 CJL
+ CNTRLJ= "J&37 /<^J> LINEFEED CHARACTER /023 CJL
+ CNTRLK= "K&37 /<^K> VERTICAL TAB CHARACTER /046 CJL
+ CNTRLL= "L&37 /<^L> FORM FEED CHARACTER /046 CJL
+ CNTRLM= "M&37 /<^M> CARRIAGE RETURN CHARACTER /023 CJL
+ CNTRLN= "N&37 /<^N> /046 CJL
+ CNTRLO= "O&37 /<^O> ECHO FLIP CHARACTER /023 CJL
+ CNTRLP= "P&37 /<^P> PROGRAM RESTART CHARACTER /023 CJL
+ CNTRLQ= "Q&37 /<^Q> OUTPUT RESUME CHARACTER /023 CJL
+ CNTRLR= "R&37 /<^R> /046 CJL
+ CNTRLS= "S&37 /<^S> OUTPUT WAIT CHARACTER /023 CJL
+ CNTRLT= "T&37 /<^T> /046 CJL
+ CNTRLU= "U&37 /<^U> /046 CJL
+ CNTRLV= "V&37 /<^V> /046 CJL
+ CNTRLW= "W&37 /<^W> /046 CJL
+ CNTRLX= "X&37 /<^X> FILE ABORT CHARACTER /044 CJL
+ CNTRLY= "Y&37 /<^Y> /046 CJL
+ CNTRLZ= "Z&37 /<^Z> ABORT AND <EOF> CHARACTER /044 CJL
+ DELETE= 177 /<DEL> DELETE OR <RO> CHARACTER /034 CJL
+ LOWERC= "C&177+40 /LOWER-CASE C (CLOSE CHARACTER) /025 CJL
+ UPPERC= "C&177 /UPPER-CASE C (CLOSE CHARACTER) /025 CJL
+
+/ I/O AND FIELD DEFINITIONS. /019 CJL
+
+ BUFFLD= 10 /I/O BUFFER FIELD /019 CJL
+ DIRFLD= 10 /DIRECTORY LOOKUP BUFFER FIELD /028 CJL
+ DMIFLD= 10 /DECMATE ONCE-ONLY CODE FIELD /046 CJL
+ MSGFLD= 10 /TEXT MESSAGE FIELD /023 CJL
+ PAGCNT= 2 /I/O BUFFER SIZE IN PAGES /019 CJL
+ PRGFLD= 00 /PROGRAM FIELD /019 CJL
+ USRFLD= 10 /USR FIELD /020 CJL
+
+/ OS/8 MONITOR DEFINITIONS. /014 CJL
+
+ SBOOT= 7600 /MONITOR EXIT LOCATION IS 07600 /014 CJL
+ USR= 7700 /NON-LOCKED USR ENTRY POINT /035 CJL
+\f/ USER SERVICE ROUTINE AND HANDLER DEFINITIONS. /020 CJL
+
+ CLOSE= 4 /CLOSE TENTATIVE OUTPUT FILE /020 CJL
+ ENTER= 3 /ENTER TENTATIVE OUTPUT FILE /020 CJL
+ FETCH= 1 /FETCH HANDLER /020 CJL
+ INQUIRE=12 /INQUIRE ABOUT HANDLER /020 CJL
+ LOOKUP= 2 /LOOKUP FILE /020 CJL
+ RESET= 13 /RESET DEVICE CONTROL WORD TABLE/037 CJL
+ USRIN= 10 /LOCK USR IN CORE /020 CJL
+ WRITE= 4000 /I/O CALL WRITE BIT /020 CJL
+
+/ INSTRUCTION DEFINITIONS.
+
+ CLCL= 6136 /CLEAR CLOCK FLAG (8/A, ETC.) /046 CJL
+ CLSK= 6131 /SKIP ON, CLEAR CLOCK FLAG /046 CJL
+ CLSK8A= 6137 /SKIP ON CLOCK FLAG (8/A, ETC.) /046 CJL
+ COM= 0017 /COMPLEMENT AC
+ DCAC= DCA . /CURRENT PAGE DCA INSTRUCTION /047 CJL
+ IAAC= 6171 /"A" REGISTER TO AC
+ IACA= 6167 /AC TO "A" REGISTER
+ ISZC= ISZ . /CURRENT PAGE ISZ INSTRUCTION /050 CJL
+ JMPC= JMP . /CURRENT PAGE JMP INSTRUCTION /047 CJL
+ JMPIC= JMP I . /CURRENT PAGE JMP I INSTRUCTION /047 CJL
+ JMSC= JMS . /CURRENT PAGE JMS INSTRUCTION /047 CJL
+ JMSIC= JMS I . /CURRENT PAGE JMS I INSTRUCTION /047 CJL
+ LINC= 6141 /GOTO LINC MODE
+ PDP= 0002 /GOTO PDP-8 MODE
+ PRQ3= 6236 /TYPE THREE PANEL REQUEST /046 CJL
+ TADC= TAD . /CURRENT PAGE TAD INSTRUCTION /047 CJL
+ R3L= 7014 /ROTATE AC (NOT LINK) LEFT 3 /046 CJL
+
+/ NUMERIC LOAD DEFINITIONS. /014 CJL
+
+ NL0000= CLA /LOAD AC WITH 0000 /046 CJL
+ NL0001= CLA IAC /LOAD AC WITH 0001 /014 CJL
+ NL0002= CLA CLL CML RTL /LOAD AC WITH 0002 /014 CJL
+ NL0003= CLA STL IAC RAL /LOAD AC WITH 0003 (8/I ON UP) /046 CJL
+ NL0004= CLA CLL IAC RTL /LOAD AC WITH 0004 (8/I ON UP) /046 CJL
+ NL0006= CLA STL IAC RTL /LOAD AC WITH 0006 (8/I ON UP) /046 CJL
+ NL0010= CLA IAC RAL RAR /LOAD AC WITH 0010 (6120) /024 CJL
+ NL0100= CLA IAC BSW /LOAD AC WITH 0100 (8/E ON UP) /024 CJL
+ NL3776= CLA CLL CMA RAR RAL /LOAD AC WITH 3776 (8/I OR 8/L) /024 CJL
+ NL3777= CLA CLL CMA RAR /LOAD AC WITH 3777 /046 CJL
+ NL4000= CLA CLL CML RAR /LOAD AC WITH 4000 /014 CJL
+ NL5777= CLA CLL CMA RTR /LOAD AC WITH 5777 /046 CJL
+ NL6000= CLA STL IAC RTR /LOAD AC WITH 6000 (8/I ON UP) /046 CJL
+ NL7775= CLA CLL CMA RTL /LOAD AC WITH 7775 /014 CJL
+ NL7776= CLA CLL CMA RAL /LOAD AC WITH 7776 /014 CJL
+ NL7777= CLA CMA /LOAD AC WITH 7777 /014 CJL
+\f/ DECMATE I COMMUNICATIONS PORT DEFINITIONS. /050 CJL
+
+ IPORT0= 30 /COMMUNICATIONS PORT 0 INPUT DEVICE CODE
+
+ RKFL0= IPORT0^10+6000 /SET COMMUNICATIONS PORT 0 INPUT FLAG
+ RKSF0= IPORT0^10+6001 /SKIP ON, CLEAR COMMUNICATIONS PORT 0 INPUT FLAG
+ RKCC0= IPORT0^10+6002 /CLEAR AC
+ RKIE0= IPORT0^10+6005 /PORT 0 INPUT INTERRUPT ENABLE PER AC[11]
+ RKRB0= IPORT0^10+6006 /READ COMMUNICATIONS PORT 0 INTO AC
+
+ OPORT0= 31 /COMMUNICATIONS PORT 0 OUTPUT DEVICE CODE
+
+ RTFL0= OPORT0^10+6000 /SET COMMUNICATIONS PORT 0 OUTPUT FLAG
+ RTSF0= OPORT0^10+6001 /SKIP ON, CLEAR COMMUNICATIONS PORT 0 OUTPUT FLAG
+ RTCF0= OPORT0^10+6002 /NOP
+ RTIE0= OPORT0^10+6005 /PORT 0 OUTPUT INTERRUPT ENABLE PER AC[11]
+ RTLS0= OPORT0^10+6006 /WRITE COMMUNICATIONS PORT 0 FROM AC
+
+ IPORT1= 34 /COMMUNICATIONS PORT 1 INPUT DEVICE CODE
+
+ RKFL1= IPORT1^10+6000 /SET COMMUNICATIONS PORT 1 INPUT FLAG
+ RKSF1= IPORT1^10+6001 /SKIP ON, CLEAR COMMUNICATIONS PORT 1 INPUT FLAG
+ RKCC1= IPORT1^10+6002 /CLEAR AC
+ RKIE1= IPORT1^10+6005 /PORT 1 INPUT INTERRUPT ENABLE PER AC[11]
+ RKRB1= IPORT1^10+6006 /READ COMMUNICATIONS PORT 1 INTO AC
+
+ OPORT1= 35 /COMMUNICATIONS PORT 1 OUTPUT DEVICE CODE
+
+ RTFL1= OPORT1^10+6000 /SET COMMUNICATIONS PORT 1 OUTPUT FLAG
+ RTSF1= OPORT1^10+6001 /SKIP ON, CLEAR COMMUNICATIONS PORT 1 OUTPUT FLAG
+ RTCF1= OPORT1^10+6002 /NOP
+ RTIE1= OPORT1^10+6005 /PORT 1 OUTPUT INTERRUPT ENABLE PER AC[11]
+ RTLS1= OPORT1^10+6006 /WRITE COMMUNICATIONS PORT 1 FROM AC
+
+ PCON= 36 /PORT STATUS AND CONTROL DEVICE CODE
+
+ SMFL= PCON^10+6000 /SET MODEM CHANGE FLAG
+ MFSK= PCON^10+6001 /SKIP ON, CLEAR MODEM CHANGE FLAG
+ WCON0= PCON^10+6002 /WRITE COMMUNICATIONS PORT 0 CONTROL REGISTER
+ PSR= PCON^10+6003 /READ PORT STATUS REGISTER
+ PMR= PCON^10+6004 /READ PORT MODEM REGISTER
+ MFIE= PCON^10+6005 /LOAD MODEM CHANGE INTERRUPT ENABLE PER AC[11]
+ WCON1= PCON^10+6006 /WRITE COMMUNICATIONS PORT 1 CONTROL REGISTER
+ RACD= PCON^10+6007 /RESET ACTIVE COMMUNICATIONS PORT PER AC[0]
+\f/ DECMATE II, ETC. COMMUNICATIONS PORT DEFINITIONS. /046 CJL
+
+ PORTIN= 30 /COMMUNICATIONS PORT INPUT DEVICE CODE
+
+ IFL= PORTIN^10+6000 /SET COMMUNICATIONS PORT INPUT/OUTPUT FLAG
+ ISF= PORTIN^10+6001 /SKIP ON, CLEAR COMMUNICATIONS PORT INPUT/OUTPUT FLAG
+ ICF= PORTIN^10+6002 /NOP (CLEAR THE AC?)
+ INOP1= PORTIN^10+6003 /(NOP?)
+ IRS= PORTIN^10+6004 /READ COMMUNICATIONS PORT RECEIVE BUFFER
+ IIE= PORTIN^10+6005 /COMMUNICATIONS PORT I/O INTERRUPT ENABLE PER AC[11]
+ IRB= PORTIN^10+6006 /READ COMMUNICATIONS PORT RECEIVE BUFFER
+ INOP2= PORTIN^10+6007 /(NOP?)
+
+ PORTOUT=31 /COMMUNICATIONS PORT OUTPUT DEVICE CODE
+
+ DUMBFL= PORTOUT^10+6000 /SET COMMUNICATIONS PORT DUMMY FLAG
+ DUMBSF= PORTOUT^10+6001 /SKIP ON, CLEAR COMMUNICATIONS PORT DUMMY FLAG
+ DUMBCF= PORTOUT^10+6002 /NOP (CLEAR THE AC?)
+ ONOP1= PORTOUT^10+6003 /(NOP?)
+ OPC= PORTOUT^10+6004 /LOAD COMMUNICATIONS PORT TRANSMIT BUFFER
+ DUMBIE= PORTOUT^10+6005 /COMMUNICATIONS PORT DUMMY INTERRUPT ENABLE PER AC[11]
+ OLS= PORTOUT^10+6006 /LOAD COMMUNICATIONS PORT TRANSMIT BUFFER
+ ONOP2= PORTOUT^10+6007 /(NOP?)
+
+ PORTCON=36 /COMMUNICATIONS PORT CONTROL DEVICE CODE
+
+ MFL= PORTCON^10+6000 /SET MODEM CHANGE FLAG
+ MSF= PORTCON^10+6001 /SKIP ON, CLEAR MODEM CHANGE FLAG
+ MLC= PORTCON^10+6002 /LOAD MODEM CONTROL REGISTER
+ MSB= PORTCON^10+6003 /LOAD BAUD RATE REGISTER
+ MRS= PORTCON^10+6004 /READ MODEM STATUS REGISTER
+ MIE= PORTCON^10+6005 /MODEM CHANGE INTERRUPT ENABLE PER AC[11]
+ MPSCC= PORTCON^10+6006 /ACCESS MULTIPROTOCOL SERIAL COMMUNICATIONS CONTROLLER
+ MPRESET=PORTCON^10+6007 /RESET MULTIPROTOCOL SERIAL COMMUNICATIONS CONTROLLER
+\f/ MISCELLANEOUS DEFINITIONS. /014 CJL
+
+/ STATIC DATE CALCULATIONS. /024 CJL
+
+/ THESE EQUATIONS CAUSE PRINTABLE TEXT OF THE DATE PARTICULARS, WHICH ARE GIVEN
+/ IN OS/8 INTERNAL FORMAT. PROGRAM MAINTAINENCE REQUIRES THE UPDATE OF VERSION,
+/ REVISION, REVDATE, AND REVDGRP. REVDATE AND REVDGRP SHOULD BE OBTAINED FROM
+/ THE SYSTEM WHEN RELEASING A NEW VERSION AFTER FIRST CORRECTLY INVOKING THE
+/ SYSTEM DATE COMMAND.
+
+/ VERSION=[ANY NUMBER IN THE RANGE 00-143 (DECIMAL 00-99)]
+
+/ REVISIO=[ANY SIX-BIT ALPHA (A-Z); DO NOT FORGET &77]
+
+/ REVDATE=[THE CONTENTS OF 17666 (DATE WORD)]
+
+/ REVDGRP=[THE CONTENTS OF 07777 (ONLY BITS[3-4] ARE USED)]
+
+
+
+ IFNDEF REVDATE <REVDATE=4464> /REVISION DATE (LOCATION 17666)
+
+ IFNDEF REVDGRP <REVDGRP=0400> /REVISION 8 YEAR DATE GROUP (LOCATION 07777)
+
+ IFNDEF REVISIO <REVISIO="G&77> /REVISION OF KERMIT-12
+
+ IFNDEF VERSION <VERSION=12> /VERSION OF KERMIT-12
+
+
+ DAY= REVDATE&370%10 /REVISION DAY
+
+ DGROUP= REVDGRP&600%20 /REVISION DATE GROUP (WHICH 8 YEARS)
+
+ MONTH= REVDATE&7400%400 /REVISION MONTH
+
+ YEAR= REVDATE&7+DGROUP+106 /REVISION YEAR (SINCE 1900)
+\f FIELD PRGFLD%10 /STARTING FIELD /038 CJL
+
+ *0 /START AT THE BEGINNING /014 CJL
+
+INTPC, .-. /PC FROM INTERRUPT (IF ANY) /014 CJL
+ JMP I INTPC /RETURN WITH INTERRUPTS OFF /014 CJL
+
+ABFLAG, .-. /FILE ABORT FLAG /044 CJL
+TABLEJU,.-. /MATCHING VALUE FOR SRCHTABLE ROUTINE /025 CJL
+
+ IFNZRO .-4 <ERROR .> /014 CJL
+ODT, ZBLOCK 7-. /RESERVED FOR OS/8 ODT /014 CJL
+RATE, BRATE /BAUD RATE /050 CJL
+
+ *10 /GET TO AUTO-INDEX AREA /014 CJL
+
+XR0, .-. /AUTO-INDEX ZERO /014 CJL
+XR1, .-. /AUTO-INDEX ONE /014 CJL
+DIRXR, PORT /DIRECTORY LOOKUP DEDICATED AUTO-INDEX /028 CJL
+ /INITIALIZED FOR DECMATE I ONCE-ONLY /050 CJL
+
+/ THE REMAINING LOCATIONS THROUGH 000017 MUST BE USED DIRECTLY ONLY, SO AS TO
+/ NOT CAUSE INADVERTANT AUTO-INDEXING.
+
+/ COLUMN COUNTER FOR CONSOLE ROUTINES (NEVER USED INDIRECTLY). /043 CJL
+
+COLUMN, .-. /CONSOLE OUTPUT COLUMN COUNTER /043 CJL
+
+/ CONSOLE TERMINAL ECHO SWITCH (NEVER USED INDIRECTLY). /020 CJL
+
+ECHOSW, 0 /0=ECHO, 4000=DON'T ECHO /020 CJL
+
+/ LATEST (NON-CONNECT MODE) CHARACTER (NEVER USED INDIRECTLY). /043 CJL
+
+INCHAR, .-. /LATEST INPUT CHARACTER FROM CONSOLE /043 CJL
+
+/ CURRENT KERMIT MODE (NEVER USED INDIRECTLY). /025 CJL
+
+KMODE, .-. /CURRENT MODE OF KERMIT /025 CJL
+
+/ KERMIT MODE FLAG VALUES. /014 CJL
+
+/ MLINE= 1 /KERMIT IS ON-LINE
+ MSEND= 2 /KERMIT IS IN SEND MODE
+ MREC= 3 /KERMIT IS IN RECEIVE MODE
+
+/ LATEST CHARACTER SENT TO OUTPUT FILE (NEVER USED INDIRECTLY). /020 CJL
+
+LATEST, .-. /LATEST CHARACTER SENT TO OUTPUT FILE /020 CJL
+\f *20 /GET PAST AUTO-INDEX AREA
+
+INFLAG, .-. /DECMATE INPUT AVAILABLE FLAG /046 CJL
+OUTFLAG,.-. /DECMATE OUTPUT AVAILABLE FLAG /046 CJL
+TEMP, 0
+RCHAR, 0 /REMOTE LINE CURRENT INPUT CHAR
+SCAN1, 0 /
+SCAN2, 0 /
+KEYDSP, 0 /DISPATCH ADDRESS FOR KEYWORD MATCH
+BININP, 0 /BINARY REGISTER FOR DECIMAL INPUT
+PTABLE, 0 /
+LPTR, 0 /HOLDS LINE POINTER
+STATE, 0 /CURRENT STATE
+RETRY, -RETCNT /PACKET ERROR RETRY COUNTER /031 CJL
+RTRYC, 0 /USE THIS FOR ACTUAL COUNTER
+
+/ CURRENT PACKET I/O DATA. /014 CJL
+
+PAKPTR, 0 /POINTER TO OUTPUT PACKET POINTER
+PAKCKS, 0 /HOLDS CURRENT OUTPUT PACKET CHECKSUM TOTAL
+CURSEQ, 0 /CURRENT SEQ NUMBER
+QFLAG, 0 /NON-ZERO WHEN NO CONTROL QUOTING
+
+/ RECEIVE "INIT" REGISTERS. /014 CJL
+
+RMAXL, DEFMAXL+40 /MAX LENGTH FOR DATA PACKET (DEFAULT)
+RTIME, 0 /TIME-OUT VALUE
+RNPAD, 0 /NUMBER OF PADDING CHARS
+RPADC, 0 /CHAR USED FOR PADDING
+REOL, DEFEOL /TERMINATOR CHAR USED FOR END OF PACKET
+RQCTL, DEFQCTL /CONTROL CHAR PREFIX CHAR
+RQBIN, 0 /PARITY CHAR PREFIX CHAR (CHARS GT 177)
+RCHKT, DEFCK /CHECKSUM TYPE (DEFAULT TYPE 1)
+RREPT, 0 /PREFIX CHAR FOR REPEATED CHARS
+RCAPAS, 0 /EXTRA CAPABILITY BIT MASK
+
+/ ZBLOCK 4 /RESERVED FOR EXTRA CAPABILITIES /022 CJL
+
+ INITEND=. /END OF INIT REGISTERS /022 CJL
+
+HNDADR, 0 /FILE DEVICE HANDLER ADDRESS
+FORCEP, 0 /FLAG FOR FORCED OUTPUT OF PACKET WHEN THERE IS
+ / NO DATA (JUST SOH, LEN, SEQ, AND CHECKSUM)
+PRSERR, 0 /HOLDS PARSE POSITION FOR REPORTING ERRORS
+PACK6P, 0 /POINTER TO STORAGE OF 6 BIT CHARS
+PACK6F, 0 /FLAG FOR WHICH BYTE TO STORE
+GET6P, 0 /POINTER USED IN THE GET6 ROUTINE
+GET6F, 0 /FLAG USED IN THE GET6 ROUTINE
+MOVE4, 0 /COUNTER FOR "MOVE"
+INIFLG, 0 /INIT DONE FLAG
+MQ, .-. /"MQ" TEMPORARY REGISTER /032 CJL
+\f/ FILE NAME PARSE REGISTERS. /014 CJL
+
+FNPTR, 0 /POINTER TO WHERE TO PUT A PARSED FILE NAME
+WILDF, 0 /WILD CARD IN FILE NAME FLAG
+
+/ FILE INFORMATION. /014 CJL
+
+FSBLK, 0 /FILE START BLOCK
+FLEN, 0 /FILE LENGTH
+DEVNUM, 0 /PARSED DEVICE NUMBER HERE
+OFFLG, 0 /OUTPUT FILE OPEN FLAG
+ODNAME, 0 /POINTER TO USER SPECIFIED DEVICE FOR OUTPUT
+ODNUMB, 0 /OUTPUT DEVICE NUMBER
+
+/ PARITY VARIABLES. /014 CJL
+
+/MARK, 0200 /SET BIT [8] FOR COMMAND INPUTS /A013
+/PARITY,0 /PARITY MASK (0=SPACE, 200=MARK) /AM013
+
+/ INTERNAL FILE MODE FLAG. /019 CJL
+
+FILMODE,FMODE /ASCII=0177, BINARY=4377 /019 CJL
+
+/ UPPER-CASE ONLY FLAG. /023 CJL
+
+UPONLY, LOWER /0=UPPER/LOWER CASE, -40=UPPER-CASE ONLY/030 CJL
+
+/ <^C> DISPATCH ADDRESS. /023 CJL
+
+UCADDRE,SBOOT /<^C> ADDRESS SHOULD BE SET AS NECESSARY/023 CJL
+
+/ <^P> DISPATCH ADDRESS. /023 CJL
+
+UPADDRE,CHKCLR /<^P> ADDRESS SHOULD BE SET AS NECESSARY/023 CJL
+
+/ ESCAPE CHARACTER FOR CONNECT MODE. /025 CJL
+
+ESCHAR, ESCAPE /ESCAPE CHARACTER FOR CONNECT MODE /025 CJL
+
+/ FLOW CONTROL FLAG. /026 CJL
+
+FLOWFLA,-FLOW /0=NO FLOW CONTROL, 7777=FLOW CONTROL /049 CJL
+ /VIA <^S>/<^Q>
+
+/ KEYBOARD INPUT ERROR FLAG. /026 CJL
+
+KEYERRO,.-. /0=NO ERROR, NON-ZERO=BAD CHARACTER /026 CJL
+ /OR BUFFER OVERRUN
+\f/ REMOTE LINE INPUT ERROR FLAG. /026 CJL
+
+RINERRO,.-. /0=NO ERROR, NON-ZERO=BAD CHARACTER /026 CJL
+ /OR BUFFER OVERRUN
+
+/ REMOTE LINE OUTPUT FLOW CONTROL WAIT FLAG. /026 CJL
+
+REMWAIT,.-. /0=DON'T WAIT, 4000=WAIT FOR <^Q> /026 CJL
+
+/ REMOTE INPUT WAIT FLAG. /026 CJL
+
+/ FLAG STATES:
+
+/ VALUE ACTION
+
+/ 0000 BUFFER IS LESS THAN 3/4 FULL. INPUT FREELY ALLOWED
+/ WITHOUT FLOW CONTROL RESTRICTIONS. IF BUFFER BECOMES
+/ 3/4 FULL AND FLOW CONTROL IS IN EFFECT THEN CHANGE
+/ STATE TO 0001.
+
+/ 0001 BUFFER IS NOW 3/4 FULL. OUTPUT <^S> TO REMOTE AND
+/ THEN CHANGE STATE TO 4000.
+
+/ 4000 WAITING FOR BUFFER TO EMPTY TO LESS THAN 1/4 FULL. IF
+/ FLOW CONTROL IS BEING OBEYED, THEN BUFFER SHOULD NOW
+/ BE EMPTYING.
+
+/ 7777 BUFFER IS NOW LESS THAN 1/4 FULL. OUTPUT <^Q> TO
+/ REMOTE AND THEN CHANGE STATE TO 0000.
+
+RINWAIT,.-. /REMOTE INPUT WAIT FLAG /026 CJL
+
+/ REMOTE LINE OUTPUT BUFFER POINTERS. /026 CJL
+
+REMINSE,.-. /REMOTE OUTPUT INSERTION POINTER /026 CJL
+REMREMO,.-. /REMOTE OUTPUT REMOVAL POINTER /026 CJL
+\f/ POINTER FOR THE PACKET INPUT AND OUTPUT ROUTINES
+
+ SPACK= JMS I . /SEND A PACKET TO REMOTE
+ SPACK0 /PUT IN A POINTER
+
+ FPACK= JMS I . /FORMAT PACKET
+ FPACK0 /PUT IN THE POINTER
+
+ RPACK= JMS I . /RECEIVE A PACKET FROM REMOTE
+ ILINK /PUT IN A POINTER
+
+/ POINTERS FOR OUTPUT ROUTINES
+
+ PRI8B= JMS I . /PRINT 8 BIT STRING ON TTY
+ PRI8B0 /PUT IN THE POINTER
+
+ REM8B= JMS I . /SEND 8 BIT STRING DOWN REMOTE LINE
+ REM8B0 /PUT IN THE POINTER
+
+/ MISC.
+
+ PACK6= JMS I . /DEFINE CALL TO ROUTINE
+ PACK60 /POINTER TO ROUTINE
+
+ GET6= JMS I . /DEFINE THE INSTRUCTION
+ GET60 /PUT IN THE POINTER
+
+ MOVE= JMS I . /DEFINE CALL TO MOVE ROUTINE
+ MOVE0 /POINTER
+
+ CLEAR= JMS I . /DEFINE CALL FOR "CLEAR" ROUTINE
+ CLEAR0 /POINTER
+\f PAGE /START ON NEW PAGE /A014 CJL
+
+/ KERMIT-12 PROGRAM STARTS HERE. /A014 CJL
+
+CLOOP, JMP I (INITIALIZE) /**** INITIALIZED **** CLA CLL /024 CJL
+ JMS I [CRESET] /RESET CONSOLE ROUTINE STUFF
+ DCA ABFLAG /CLEAR ABORT FLAG /044 CJL
+ DCA REMWAIT /CLEAR REMOTE FLOW CONTROL WAIT /049 CJL
+CLDMZAP,JMS DMINIT /INITIALIZE DECMATE PORT /048 CJL
+
+/ THE PREVIOUS INSTRUCTION IS FOR DECMATE OPERATION ONLY. THE DEFAULT
+/ INSTRUCTION IS FOR KL8 INTERFACES ONLY.
+
+ *CLDMZAP /OVERLAY DECMATE CODE /048 CJL
+
+CLDMZAP,NOP /DON'T INITIALIZE DECMATE PORT /048 CJL
+ TAD RATE /GET BAUD RATE
+SETBAUD,MSB /SET REMOTE BAUD RATE /050 CJL
+
+/ THE PREVIOUS INSTRUCTION IS FOR DECMATE II OPERATION ONLY. /050 CJL
+
+ *SETBAUD /OVERLAY DECMATE II CODE /050 CJL
+
+SETBAUD,NOP /NOT APPLICABLE ON DECMATE I /050 CJL
+
+/ THE PREVIOUS INSTRUCTION IS FOR DECMATE I OPERATION ONLY. THE DEFAULT
+/ INSTRUCTION IS FOR KL8 INTERFACES ONLY.
+
+ *SETBAUD /OVERLAY DECMATE I CODE /050 CJL
+
+SETBAUD,RSBIOT /SET REMOTE BAUD RATE /050 CJL
+ JMS I [SCRIBE] /DO A /025 CJL
+ CRLF /<CR>, <LF> /025 CJL
+ JMS I [SCRIBE] /GIVE THEM THE /025 CJL
+/ PRMTMSG /PROMPT MESSAGE /025 CJL
+ PRMT2
+ JMS I (LININP) /GET INPUT LINE FROM USER
+ TAD (CMDTBL) /GET ADDRESS OF PARSE TABLE /M014 CJL
+ DCA PTABLE /STORE FOR PARSER
+ TAD (LINBUF) /GET INPUT LINE BUFFER ADDRESS /M014 CJL
+
+CLOOP1, JMS I (KEYPRS) /PARSE OFF A KEYWORD
+ JMP CLOOP9 /NO MATCH ON KEYWORD
+ JMP CLOOP /END OF LINE DETECTED
+ DCA LPTR /STORE POINTER TO NEXT POS ON LINE
+ JMS I KEYDSP /DISPATCH TO SERVICE
+ JMP CLOOP7 /ERROR RETURN FROM SERVICE DISPATCH
+ TAD LPTR /RE-GET COMMAND LINE POINTER
+ JMP CLOOP1 /CONTINUE LINE PARSE
+
+CLOOP7, SNA /SKIP IF A RETURNING MESSAGE PASSED /029 CJL
+ JMP CLOOP /JUST GO BACK TO COMMAND LOOP /029 CJL
+ DCA RETARG /STORE IN-LINE /029 CJL
+ JMS I [SCRIBE] /CALL MESSAGE PRINT ROUTINE
+RETARG, .-. /WILL BE PASSED MESSAGE ADDRESS
+ JMP CLOOP /KEEP GOING
+\fCLOOP9, JMS I [SCRIBE] /COMPLAIN OF /025 CJL
+ CMERMSG /BAD COMMAND /025 CJL
+ JMP CLOOP /GO AGAIN
+
+/ ROUTINE TO FORMAT A PACKET OF DATA
+/ CALL: FPACK
+/ DATA ADDRESS (DATA MUST ALREADY BE CONTROL/QUOTED AND MUST
+/ NOT BE LONGER THAN THE LARGEST PACKET)
+/ PACKET TYPE
+
+FPACK0, 0
+ CLA CLL /INSURE CLEAR AC
+ TAD I FPACK0 /GET THE DATA ADDRESS
+ DCA FP1 /STORE IN SOURCE POINTER
+ ISZ FPACK0 /BUMP ARGUMENT POINTER
+ TAD I FPACK0 /NOW GET TYPE
+ DCA I (RSTYP) /STORE
+ ISZ FPACK0 /BUMP ARGUMENT POINTER
+ TAD (RSDTA /GET ADDRESS OF DATA BUFFER
+ DCA FP2 /STORE IN DESTINATION POINTER
+
+ TAD (40+3 /SET FOR LENGTH COUNTER
+ DCA I (RSLEN) /STORE IN PACKET
+ DCA FP3 /INIT CHECKSUM
+ TAD CURSEQ /GET CURRENT SEQ NUMBER
+ AND [77] /MODULO 64 /014/016 CJL
+ TAD [40] /TAKE CHAR(SEQUENCE NUMBER) /014/016 CJL
+ DCA I (RSSEQ) /PUT INTO PACKET
+FPACK2, TAD I FP1 /GET A CHAR FROM SOURCE
+ SPA /SKIP IF NOT END
+ JMP FPACK3 /END
+ TAD FP3 /COMBINE WITH CHECKSUM
+ DCA FP3 /AND RETURN
+ TAD I FP1 /GET CHAR BACK AGAIN
+ DCA I FP2 /NOW PUT INTO DESTINATION
+ ISZ I (RSLEN) /BUMP THE LENGTH
+ ISZ FP1 /BUMP THE SOURCE POINTER
+ ISZ FP2 /BUMP THE DESTINATION POINTER
+ JMP FPACK2 /LOOP
+\fFPACK3, CLA CLL /CLEAR THE AC
+ TAD FP3 /GET CALCULATED CHECKSUM
+ TAD I (RSLEN) /INCLUDE THE LENGTH
+ TAD I (RSSEQ) /AND THE SEQUENCE
+ TAD I (RSTYP) /AND THE TYPE
+ JMS I [CKSUM] /GET IT CORRECT
+ DCA I FP2 /STORE WITH PACKET
+ ISZ FP2 /BUMP PACKET POINTER
+ TAD REOL /GET ANY END OF LINE TO INCLUDE
+ TAD [-40] /MAKE IT A REAL CHARACTER /014/016 CJL
+ SNA /SKIP IF EOL CHAR REQUIRED
+ JMP FPACK4 /NO EOL CHAR
+ DCA I FP2 /STORE EOL CHAR WITH PACKET
+ ISZ FP2 /BUMP POINTER
+FPACK4, NL7777 /SET -1 /032 CJL
+ DCA I FP2 /PACKET NOW COMPLETE
+ TAD RETRY /SET UP RE-TRY COUNTER
+ DCA RTRYC
+ ISZ CURSEQ /BUMP SEQUENCE NUMBER FOR NEXT TIME
+ NOP /PROTECT ISZ
+ JMP I FPACK0 /RETURN
+
+FP1, 0 /POINTER TO SOURCE DATA
+FP2, 0 /POINTER TO PACKET BUFFER
+FP3, 0 /RUNNING CHECKSUM
+
+/ DECMATE INITIALIZE ROUTINE. /048 CJL
+
+DMINIT, .-. /DECMATE PORT INITIALIZE ROUTINE/048 CJL
+DMI01, TAD DM234/(234) /GET SCD ENABLE VALUE /050 CJL
+DMI02, WCON0 /WRITE CONTROL REGISTER 0 (1) /050 CJL
+DMI03, NL0000 /INDICATE PORT 0 (1) /050 CJL
+DMI04, RACD /RESET THE ACTIVE PORT /050 CJL
+DMI05, ISZ DMWASTE /WASTE /050 CJL
+DMI06, JMP DMI05 /SOME TIME /050 CJL
+DMI07, ISZ DMWASTE /WASTE /050 CJL
+DMI08, JMP DMI07 /SOME TIME /050 CJL
+DMI09, RTFL0 /SET PORT 0 (1) OUTPUT FLAG /050 CJL
+DMI10, TAD DM2516/(2516) /SETUP FOR 8 BITS, NO PARITY /050 CJL
+DMI11, JMS DMSEND /SEND TO MODE REGISTER 1 /050 CJL
+DMI12, TAD RATE /GET BAUD RATE /050 CJL
+DMI13, TAD DM2460/(2460) /ADD ON CLOCK ENABLE VALUES /050 CJL
+DMI14, JMS DMSEND /SEND TO MODE REGISTER 2 /050 CJL
+DMI15, TAD DM3425/(3425) /GET ENABLE AND RESET VALUE /050 CJL
+DMI16, JMS DMSEND /SEND TO COMMAND REGISTER /050 CJL
+DMI17, RKRB0 /DO A DUMMY READ ON PORT 0 (1) /050 CJL
+\f/ THE PREVIOUS INSTRUCTIONS ARE FOR DECMATE I OPERATION ONLY. THE DEFAULT
+/ INSTRUCTIONS ARE FOR DECMATE II, ETC. INTERFACES ONLY.
+
+ *DMI01 /OVERLAY DECMATE I CODE /050 CJL
+
+DMI01, ISZ DMWASTE /WASTE /048 CJL
+DMI02, JMP DMI01 /SOME TIME /048 CJL
+DMI03, ISZ DMWASTE /WASTE /048 CJL
+DMI04, JMP DMI03 /SOME TIME /048 CJL
+DMI05, ISF /SKIP ON AND CLEAR PORT FLAG /048 CJL
+DM50, 50/NOP /JUST IN CASE /048 CJL
+DMI07, IRB /READ THE PORT BUFFER /048 CJL
+DMI08, CLA /CLEAN UP /048 CJL
+DMI09, TAD DM50/(50) /GET OUTPUT INTERRUPT VALUE /048 CJL
+DMI10, MPSCC /CLEAR OUTPUT INTERRUPT /048 CJL
+DMI11, TAD (60-50) /GET ERROR RESET VALUE /048 CJL
+DMI12, MPSCC /CLEAR OVERRUN ERRORS /048 CJL
+DMI13, TAD (70-60) /SET END OF INTERRUPT VALUE /048 CJL
+DMI14, MPSCC /CLEAR THE INTERRUPT /048 CJL
+DMI15, DCA OUTFLAG /INDICATE OUTPUT IS AVAILABLE /048 CJL
+DMI16, DCA INFLAG /CLEAR INPUT AVAILABLE FLAG /048 CJL
+DMI17, JMP I DMINIT /RETURN /048 CJL
+
+/ DECMATE I INITIALIZE CODE CONTINUES HERE. /050 CJL
+
+DMISET, RTFL0 /SET PORT 0 (1) OUTPUT FLAG /050 CJL
+ CLA /CLEAN UP /050 CJL
+ JMP I DMINIT /RETURN /050 CJL
+
+DMSEND, .-. /DECMATE I SEND ROUTINE /050 CJL
+DMISKP, RTSF0 /SKIP ON PORT 0 (1) OUTPUT FLAG /050 CJL
+ JMP DMISKP /WAIT FOR IT /050 CJL
+DMIOUT, RTLS0 /SEND TO PORT 0 (1) REGISTER /050 CJL
+ CLA /CLEAN UP /050 CJL
+ JMP I DMSEND /RETURN /050 CJL
+
+DMWASTE,.-. /TIMER TEMPORARY /050 CJL
+DM234, 234 /CONSTANT 0234 /050 CJL
+DM2460, 2460 /CONSTANT 2460 /050 CJL
+DM2516, 2516 /CONSTANT 2516 /050 CJL
+DM3425, 3425 /CONSTANT 3425 /050 CJL
+
+ PAGE
+\f/ ROUTINE TO SEND THE FORMATTED PACKET /027 CJL
+/ ARGUMENTS: CALL+1 NON-ZERO = AWAIT RESPONSE
+/ ZERO = DO NOT AWAIT RESPONSE
+/ CALL + 2 DISPATCH TABLE-2 /027 CJL
+
+SPACK0, 0
+ REM8B; RSBUF /SEND PACKET JUST COMPLETED
+ TAD I SPACK0 /DO WE GET A RESPONSE?
+ ISZ SPACK0 /BUMP POINTER PAST ARGUMENT
+ SNA CLA /SKIP IF YES
+ JMP I SPACK0 /ALL DONE HERE
+ RPACK /GET PACKET BACK FROM REMOTE
+ TAD I SPACK0 /DID WE WANT A DISPATCH?
+ ISZ SPACK0 /BUMP PAST ARGUMENT
+ SNA /SKIP IF YES
+ JMP I SPACK0 /EXIT IF NO
+ DCA SPACARG /STORE IN-LINE /031 CJL
+ JMS DISPATCH /CALL DISPATCH ROUTINE /031 CJL
+SPACARG,.-. /WILL BE DISPATCH TABLE-2 /031 CJL
+ JMP I SPACK0 /NOT FOUND, GOTTA RETURN
+
+/ CONSOLE RESET ROUTINE. /024 CJL
+
+CRESET, .-. /CONSOLE RESET ROUTINE
+ CLA CLL /CLEAN UP
+ DCA ECHOSW /ENABLE OUTPUT ECHO
+ TAD (UPCPRT) /ALLOW THEM TO
+ DCA UCADDRESS /RESTART VIA <^C>
+ TAD [CLOOP] /ALLOW THEM TO
+ DCA UPADDRESS /RESTART VIA <^P>
+ JMP I CRESET /RETURN
+
+/ ALTERNATE CONSOLE RESET ROUTINE. /025 CJL
+
+CREST2, .-. /ALTERNATE CONSOLE RESET ROUTINE
+ JMS CRESET /CLEAR AC AND ENABLE OUTPUT ECHO
+ TAD (KCCZAP) /RENDER <^C>
+ DCA UCADDRESS /TOTALLY HARMLESS
+ TAD (CHKCLR) /MAKE <^P> PRINT "^P"
+ DCA UPADDRESS /AND THEN GO AWAY
+ JMP I CREST2 /RETURN
+\f/ ROUTINE TO CLEAR WORDS OF MEMORY
+/ ENTER WITH: AC = MINUS NUMBER OF WORDS TO CLEAR
+/ MQ = ADDRESS OF WHERE TO START THE CLEAR
+
+CLEAR0, 0
+ DCA CLEAR5 /STORE COUNT OF WORDS
+ TAD MQ /GET ADDRESS TO CLEAR /032 CJL
+ DCA CLEAR6 /STORE IN POINTER
+ DCA I CLEAR6 /ZERO A WORD
+ ISZ CLEAR6 /BUMP POINTER
+ ISZ CLEAR5 /BUMP COUNTER
+ JMP .-3 /LOOP
+ JMP I CLEAR0 /DONE
+
+CLEAR5, 0 /TEMP FOR "CLEAR" ROUTINE
+CLEAR6, 0 /TEMP FOR "CLEAR" ROUTINE
+
+/ ROUTINE TO DISPATCH TO ROUTINE BASED ON VALUE OF "RRTYP". /027 CJL
+
+/ CALLING SEQUENCE:
+
+/ CLA /AC MUST BE CLEAR
+/ JMS DISPATCH /CALL ROUTINE
+/ ADDRESS-2 /DISPATCH TABLE ADDRESS-2
+/ NO MATCH RETURN /RETURNS HERE WITH CLEAR AC IF NO MATCH
+
+/ CALL WILL DISPATCH TO THE CORRESPONDING ROUTINE ON A MATCH IN THE SPECIFIED
+/ TABLE (WHICH ENDS WITH ZERO) WITH A CLEAR AC.
+
+DISPATC,.-. /MATCH "RRTYP" AND DISPATCH ROUTINE
+ CLA /JUST IN CASE /031 CJL
+ TAD I DISPATCH /GET PASSED ARGUMENT
+ ISZ DISPATCH /BUMP PAST THE ARGUMENT
+ DCA DISPA2 /SAVE PASSED ARGUMENT IN-LINE
+ TAD I (RRTYP) /GET VALUE OF "RRTYP"
+ CIA /INVERT FOR TESTING
+ JMS I [SRCHTABLE] /CALL TABLE SEARCH ROUTINE
+DISPA2, .-. /WILL BE TABLE ADDRESS-2
+ SNA CLA /SKIP IF MATCH FOUND
+ JMP I DISPATCH /RETURN ON NO MATCH
+ JMP I TABLEJUMP /DISPATCH TO MATCHING ADDRESS
+\f/ ROUTINE TO PUT CHARS INTO A BUFFER TO GET READY TO FORMAT A PACKET.
+/ ENTER WITH CHAR IN THE AC; IF THE CHAR NEEDS CONTROL QUOTING, IT WILL BE ADDED
+/ EXIT + 2 IF EVERYTHING IS OK
+/ EXIT + 1 IF BUFFER IS FULL
+
+OPBUF, 0 /PUT CHARACTERS INTO BUFFER FOR PACKET ROUTINE
+ JMS I (OPRE) /CHECK FOR PREFIX
+ JMP OPBUF1 /NO PREFIX
+ DCA OP1 /SAVE CONVERTED CHAR
+ TAD RQCTL /GET QUOTE CHAR TO USE
+ DCA I OP2 /PUT RETURNED PREFIX INTO BUFFER
+ ISZ OP2 /BUMP POINTER
+ TAD OP1 /GET BACK CONVERTED CHAR
+OPBUF1, DCA I OP2 /PUT INTO BUFFER
+ ISZ OP2 /BUMP POINTER
+ NL7777 /SET -1 /032 CJL
+ DCA I OP2 /ALWAYS TERMINATE BUFFER
+ TAD RMAXL /GET MAX BUFFER LENGTH
+ TAD (-40+HOLDBF-4 /
+ CIA
+ TAD OP2 /COMPARE WITH WHAT WE HAVE
+ SPA CLA /SKIP IF NO ROOM
+ JMP OPBUF2 /HAVE ROOM
+ JMS INIOPB /RESET BUFFER
+ JMP I OPBUF /TAKE RETURN + 1
+
+OPBUF2, ISZ OPBUF /BUMP RETURN FOR BUFFER NOT FULL
+ JMP I OPBUF /DONE
+
+OP1, 0 /TEMP LOCATION
+OP2, HOLDBF /POINTER FOR HOLD BUFFER
+
+/ ROUTINE TO RE-SET THE HOLD BUFFER.
+
+INIOPB, 0
+ TAD (HOLDBF /RE-SET BUFFER POINTER
+ DCA OP2
+ JMP I INIOPB
+
+/ ROUTINE TO CALCULATE A 1 BYTE CHECKSUM.
+
+CKSUM, 0
+ DCA CKSUM1 /STORE TEMP
+ TAD CKSUM1 /GET BACK
+ RTR;RTR;RTR /GET TWO HIGHEST INTO TWO LOWEST /032 CJL
+ AND (3 /KEEP ONLY BITS 0-1
+ TAD CKSUM1 /GET ORIGINAL
+ AND [77] /KEEP ONLY BITS 0-5 /016 CJL
+ TAD [40] /MAKE A CHAR(CHECKSUM)
+ JMP I CKSUM /DONE, RETURN IN AC
+
+CKSUM1, 0 /TEMP FOR "CKSUM"
+\f PAGE
+\f/ ROUTINE TO INPUT CHARS FROM REMOTE UNTIL A "SOH" CHAR IS FOUND.
+
+GETSOH, 0
+ JMS COMIN /GET A CHARACTER FROM THE REMOTE LINE /046 CJL
+ JMP I GETSOH /TIME-OUT
+ AND [177] /IGNORE PARITY BIT /034 CJL
+ TAD (-CNTRLA) /COMPARE WITH "SOH" /034 CJL
+ SZA CLA /SKIP IF SAME
+ JMP GETSOH+1 /LOOP TILL WE GET ONE
+ ISZ GETSOH /BUMP FOR GOOD RETURN
+ JMP I GETSOH /GOT ONE, DONE
+
+
+/ ROUTINE TO GET A CHAR FROM THE REMOTE LINE AND UPDATE CHECKSUM.
+
+GETIR, 0
+ JMS COMIN /GET A CHARACTER FROM THE REMOTE LINE /046 CJL
+ JMP I GETIR /TIME-OUT RETURN
+ DCA GETIR1 /STORE TEMP
+ TAD GETIR1 /GET CHAR BACK
+ TAD I (ILINK9) /ADD CHECKSUM
+ DCA I (ILINK9) /RETURN UPDATED CHECKSUM
+ TAD GETIR1 /RE-GET CURRENT INPUT CHAR
+ TAD [-15] /CHECK FOR A RETURN
+ SNA CLA /SKIP IF NOT A RETURN
+ JMP I GETIR /WAS A RETURN, TAKE EXIT + 1
+ TAD GETIR1 /RE-GET CHAR FOR RETURN
+ ISZ GETIR /BUMP FOR GOOD RETURN
+ JMP I GETIR /AND RETURN IN THE AC
+
+GETIR1, 0 /TEMP LOCAL TO "GETIR"
+\f/ REMOTE COMMUNICATIONS ROUTINES FOR NON-CONNECT USAGE. /046 CJL
+
+/ REMOTE INPUT ROUTINE. /046 CJL
+
+COMIN, .-. /REMOTE INPUT ROUTINE /046 CJL
+ CLA /CLEAN UP /046 CJL
+ TAD [-15] /SETUP THE /049 CJL
+ DCA TIMEOUT /TIME-OUT FACTOR /046 CJL
+INLUP, TAD INFLAG /IS INPUT AVAILABLE? /046 CJL
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE II USE ONLY. THE DEFAULT INSTRUCTION IS
+/ FOR KL8 INTERFACES.
+
+ *INLUP /OVERLAY DECMATE II CODE /049 CJL
+
+INLUP, SKP /WE'RE NOT A DECMATE II /049 CJL
+ SNA CLA /SKIP IF INPUT AVAILABLE (ON DECMATE II)/049 CJL
+INSKIP, JMP NOTYET /JUMP IF NOT /049 CJL
+INLUP1, DCA INFLAG /CLEAR INPUT AVAILABILITY FLAG /049 CJL
+INREAD, IRB /GET THE CHARACTER /049 CJL
+
+/ THE ABOVE INSTRUCTIONS ARE FOR DECMATE II USE ONLY. THE DEFAULT INSTRUCTIONS
+/ ARE FOR KL8 INTERFACES.
+
+ *INSKIP /OVERLAY DECMATE II CODE /049 CJL
+
+INSKIP, RKSFIOT /INPUT FLAG UP? /049 CJL
+INLUP1, JMP NOTYET /NO, CHECK FOR ABORT, ETC. /049 CJL
+INREAD, RKRBIOT /YES, READ IN THE CHARACTER /049 CJL
+ AND [177] /JUST SEVEN-BIT /046 CJL
+ DCA RCHAR /SAVE THE CHARACTER /046 CJL
+ TAD RCHAR /GET IT BACK /046 CJL
+ ISZ COMIN /BUMP TO GOOD RETURN /046 CJL
+ JMP I COMIN /RETURN /046 CJL
+
+/ COMES HERE IF INPUT NOT AVAILABLE.
+
+NOTYET, JMS I (CTLCTST) /CHECK FOR <^C>, ETC. /044 CJL
+ TAD [-CNTRLZ] /COMPARE POSSIBLE CHARACTER TO <^Z> /044 CJL
+ SZA /SKIP IF IT ALREADY MATCHES /044 CJL
+ TAD [-CNTRLX+CNTRLZ]/ELSE COMPARE TO <^X> /044 CJL
+ SNA CLA /SKIP IF NEITHER ABORT CHARACTER /049 CJL
+ ISZ ABFLAG /SET ABORT FLAG /049 CJL
+ SKP /SKIP IF NOT TOO MANY TIMES /049 CJL
+ JMP .-2 /ENSURE FLAG SETTING /049 CJL
+\fINSTATU,JMS UPSTATUS /UPDATE THE PORT STATUS /049 CJL
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE II USE ONLY. THE DEFAULT INSTRUCTION IS
+/ FOR KL8 INTERFACES.
+
+ *INSTATUS /OVERLAY DECMATE II CODE /049 CJL
+
+INSTATU,NOP /WE'RE NOT A DECMATE II /049 CJL
+ ISZ WASTIME /WASTE SOME TIME /046 CJL
+ JMP INLUP /KEEP TRYING /046 CJL
+ ISZ TIMEOUT /WAITING TOO LONG? /046 CJL
+ JMP INLUP /NO, KEEP TRYING /046 CJL
+ JMP I COMIN /YES, TAKE ERROR RETURN /046 CJL
+
+/ FLOW-CONTROL STATUS ROUTINE. /049 CJL
+
+GETFLOW,.-. /GET FLOW-CONTROL STATUS
+GETFL1, JMS UPSTATUS /UPDATE THE CURRENT STATUS
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE II USE ONLY. THE DEFAULT INSTRUCTION IS
+/ FOR KL8 INTERFACES.
+
+ *GETFL1 /OVERLAY DECMATE II CODE
+
+GETFL1, NOP /WE'RE NOT A DECMATE II
+ JMS I (RINGET) /GET REMOTE CHARACTER (IF ANY)
+ CLA /THROW IT AWAY
+ TAD REMWAIT /GET REMOTE FLOW STATUS
+ JMP I GETFLOW /RETURN
+
+/ REMOTE OUTPUT ROUTINE. /046 CJL
+
+COMOUT, .-. /REMOTE OUTPUT ROUTINE /046 CJL
+ DCA OUTEMP /SAVE PASSED VALUE /046 CJL
+CMRESET,TAD [-15] /SETUP THE /049 CJL
+ DCA OTIME /TIME-OUT COUNTER /049 CJL
+COMWAIT,JMS GETFLOW /GET REMOTE WAIT STATUS /049 CJL
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE USE ONLY. THE DEFAULT INSTRUCTION IS FOR
+/ KL8 INTERFACES.
+
+ *COMWAIT /OVERLAY DECMATE CODE /049 CJL
+
+COMWAIT,NL7777 /SETUP FOR FLOW CONTROL FLAG LOAD /049 CJL
+ AND FLOWFLAG /SHOULD WE WAIT FOR REMOTE FLOW CONTROL?/049 CJL
+ SNA CLA /SKIP IF SO /049 CJL
+ JMP NOWAIT /JUMP IF NOT /049 CJL
+\fFLOWAIT,JMS GETFLOW /GET REMOTE WAIT STATUS /049 CJL
+ SZA CLA /SKIP IF NOT WAITING /049 CJL
+ JMP FLOWAIT /JUMP IF STILL WAITING /049 CJL
+NOWAIT, TAD OUTFLAG /CHECK IF OUTPUT IS AVAILABLE /049 CJL
+CMOUT1, SNA CLA /SKIP IF SO /049 CJL
+CMOUT2, JMP OWAIT /JUMP IF NOT /049 CJL
+DM1AND, DCA OUTFLAG /CLEAR OUTPUT AVAILABILITY FLAG /049 CJL
+CMOUT3, TAD OUTEMP /GET THE PASSED VALUE /049 CJL
+CMOUT4, OLS /OUTPUT IT /049 CJL
+
+/ THE ABOVE INSTRUCTIONS ARE FOR DECMATE II USE ONLY. THE DEFAULT INSTRUCTIONS
+/ ARE FOR KL8 INTERFACES.
+
+ *NOWAIT /OVERLAY DECMATE II CODE /049 CJL
+
+NOWAIT, RTSFIOT /OUTPUT FLAG UP? /049 CJL
+CMOUT1, JMP OWAIT /NO, WAIT FOR IT THERE /049 CJL
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE I USE ONLY. THE DEFAULT INSTRUCTION IS
+/ FOR KL8 INTERFACES.
+
+ *CMOUT1 /OVERLAY DECMATE I CODE /049 CJL
+
+CMOUT1, JMP COMWAIT /NO, WAIT FOR IT /049 CJL
+CMOUT2, TAD OUTEMP /YES, GET PASSED VALUE /049 CJL
+DM1AND, AND [377] /ENSURE EIGHT BITS (FOR DECMATE I) /049 CJL
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE I USE ONLY. THE DEFAULT INSTRUCTION IS
+/ FOR KL8 INTERFACES.
+
+ *DM1AND /OVERLAY DECMATE I CODE /049 CJL
+
+DM1AND, SKP /WE'RE NOT A DECMATE I /049 CJL
+CMOUT3, TAD [400] /FORCE OUTPUT WRITE FOR DECMATE I /049 CJL
+CMOUT4, RTLSIOT /OUTPUT THE CHARACTER /049 CJL
+ CLA /CLEAN UP /049 CJL
+ JMP I COMOUT /RETURN /049 CJL
+
+/ COMES HERE IF OUTPUT NOT READY. /049 CJL
+
+OWAIT, ISZ OWASTE /WASTE SOME TIME /049 CJL
+ JMP COMWAIT /KEEP TRYING /049 CJL
+ ISZ OTIME /WAITING TOO LONG? /049 CJL
+ JMP COMWAIT /NO, KEEP TRYING /049 CJL
+ JMS I (DMINIT) /YES, RESET EVERYTHING /049 CJL
+ JMP CMRESET /TRY, TRY AGAIN /049 CJL
+\f/ DECMATE II, ETC. STATUS UPDATE ROUTINE. /046 CJL
+
+UPSTATU,.-. /UPDATE THE STATUS ROUTINE /046 CJL
+ ISF /COMMUNICATIONS PORT FLAG UP? /046 CJL
+ JMP I UPSTATUS /NO, RETURN /046 CJL
+ NL4000 /SETUP READ OF REGISTER ZERO /046 CJL
+ MPSCC /TELL THE MPSCC CHIP /046 CJL
+ CLA /CLEAN UP /046 CJL
+ MPSCC /READ REGISTER ZERO NOW /046 CJL
+ AND (5) /JUST INPUT AND OUTPUT BITS /046 CJL
+ CLL RAR /MOVE INPUT TO LINK /046 CJL
+ SNA CLA /SKIP IF OUTPUT INTERRUPT /046 CJL
+ JMP INCHK /JUMP IF NOT /046 CJL
+ TAD (050) /GET OUTPUT CLEAR VALUE /046 CJL
+ MPSCC /CLEAR THE OUTPUT INTERRUPT /046 CJL
+ DCA OUTFLAG /INDICATE OUTPUT AVAILABLE NOW /046 CJL
+INCHK, CLA RAL /GET RECEIVE STATUS /046 CJL
+ SZA /SKIP IF INPUT NOT AVAILABLE RIGHT NOW /046 CJL
+ DCA INFLAG /INDICATE NEW INPUT STATUS /046 CJL
+ CLA /CLEAN UP EITHER WAY /046 CJL
+ TAD (070) /GET END OF INTERRUPT VALUE /046 CJL
+ MPSCC /CLEAR THE INTERRUPT /046 CJL
+ CLA /CLEAN UP /046 CJL
+ JMP I UPSTATUS /RETURN /046 CJL
+
+ AND377= AND [377] /INSTRUCTION CONSTANT /049 CJL
+ OUTEMP= COMIN /OUTPUT ROUTINE TEMPORARY /049 CJL
+ TIMEOUT=GETFLOW /TIME-OUT TEMPORARY /049 CJL
+ WASTIME=COMOUT /TIME-OUT TEMPORARY /049 CJL
+
+OTIME, .-. /TIME-OUT TEMPORARY /049 CJL
+OWASTE, .-. /TIME-OUT TEMPORARY /049 CJL
+
+ PAGE
+
+/ HOLD BUFFER FOR CHAR OUTPUT
+
+ DECIMAL
+
+HOLDBF, ZBLOCK 92
+
+ OCTAL
+\f/ ROUTINE TO CHECK FOR CONTROL PREFIX.
+/ ENTER WITH CHAR TO CHECK IN THE AC.
+/ EXIT + 1 WITH CHAR IN THE AC IF NO PREFIX QUOTING.
+/ EXIT + 2 WITH PROPER CHAR IN THE AC AND QUOTING IS REQUIRED.
+
+OPRE, 0 /CHECK FOR CONTROL PREFIX ROUTINE
+ DCA PRETEMP /SAVE THE CHARACTER /032 CJL
+ TAD QFLAG /CHECK FOR IN CTRL QUOTE MODE
+ SZA CLA /SKIP IF YES
+ JMP OPRE1 /NO QUOTE PREFIX
+ TAD PRETEMP /GET THE CHARACTER /032 CJL
+ AND [7740] /QUICK CHECK FOR <40 /014/016 CJL
+ SNA CLA /SKIP IF NOT CONTROL
+ JMP OPRE2 /PREFIX QUOTE
+ TAD PRETEMP /GET THE CHARACTER /032 CJL
+ TAD (-177 /CHECK FOR "DELETE"
+ SNA CLA /SKIP IF NOT
+ JMP OPRE2 /PREFIX QUOTE
+ TAD PRETEMP /GET THE CHARACTER /032 CJL
+ CIA /NEGATE FOR COMPARE
+ TAD RQCTL /SEE IF SAME AS QUOTE CHAR
+ SZA CLA /SKIP IF PREFIX QUOTE
+ JMP OPRE1 /NO PREFIX QUOTE
+ TAD RQCTL /PREFIX WITH PREFIX
+ JMP OPRE3 /PREFIX WITH THE PREFIX
+
+OPRE1, TAD PRETEMP /GET THE CHARACTER /032 CJL
+ JMP I OPRE /DONE
+
+OPRE2, TAD PRETEMP /GET THE CHARACTER /032 CJL
+ TAD [100] /MAKE IT PRINTABLE /016 CJL
+ AND [177] /IN CASE IT WAS 177 /014/016 CJL
+
+OPRE3, ISZ OPRE /BUMP FOR PREFIX RETURN
+ JMP I OPRE /DONE
+
+PRETEMP,.-. /PREFIX TEMPORARY /032 CJL
+
+ PAGE /014 CJL
+\f/ ROUTINE TO SCAN A TEXT LINE FOR KEYWORD DELIMITERS.
+
+/ THIS ROUTINE EXPECTS THE AC TO POINT TO A TEXT LINE TO SCAN AND FINDS THE
+/ FIRST NON-SPACE, NON-END OF LINE CHAR IN THE LINE AND SETS "SCAN1" TO POINT TO
+/ IT. NEXT WE FIND THE LAST CHAR IN THE LINE THAT IS A NON-SPACE, NON-END OF
+/ LINE AND STORE A POINTER TO IT IN "SCAN2". KEYWORDS ARE DELIMITED BY A
+/ BEGINNING OF LINE OR SPACE AT THE BEGINNING AND AN END OF LINE OR A SPACE AT
+/ THE END.
+
+/ ENTER: AC = POINTER TO COMMAND LINE
+
+/ EXIT: (SUCCESS) SCAN1 = POINTER TO FIRST CHAR OF KEYWORD.
+/ SCAN2 = POINTER TO LAST CHAR OF KEYWORD.
+/ RETURN = RETURN + 2 (NO WORDS LEFT IN LINE).
+
+/ EXIT: (FAIL) RETURN = RETURN + 1.
+
+SCNEL, 0 /SCAN ROUTINE
+ JMS I [NOSP] /FIND FIRST NON-SPACE
+ JMP I SCNEL /END OF LINE RETURN
+ DCA SCAN1 /RETURN SCAN LINE POINTER
+ TAD SCAN1 /RE-GET SCAN LINE POINTER
+ JMS I [SP] /FIND FIRST SPACE OR EOL
+ NOP /RETURN HERE ON EOL
+ TAD (-1 /BACK UP TO PREVIOUS CHAR
+ DCA SCAN2 /SET END ELEMENT POINTER
+ ISZ SCNEL /TAKE SUCCESS RETURN
+ JMP I SCNEL /DONE
+
+
+/ ROUTINE TO SCAN THRU A TEXT LINE LOOKING FOR THE NEXT SPACE.
+/ ENTER ROUTINE WITH THE LINE POINTER IN THE AC.
+
+/ EXIT: RETURN + 2 WITH AC = POINTER TO SPACE.
+/ RETURN + 1 WITH AC = POINTER TO END OF LINE.
+
+SP, 0 /CHECK FOR A <SPACE> ROUTINE
+ DCA SCANTP /USE A TEMP POINTER
+ SKP /SKIP INTO LOOP BELOW
+SP1, ISZ SCANTP /BUMP LINE POINTER
+ TAD I SCANTP /GET A CHAR
+ SPA /SKIP IF NOT END OF LINE
+ JMP SP3 /GOT AN END OF LINE
+ TAD [-" !200] /COMPARE WITH <SP> /034 CJL
+ SZA CLA /SKIP IF IS A SPACE
+ JMP SP1 /LOOP TILL SPACE OR EOL
+ ISZ SP /BUMP RETURN FOR SPACE FOUND
+
+SP3, CLA CLL /INSURE A CLEAR AC
+ TAD SCANTP /GET POINTER VALUE
+ JMP I SP /RETURN IN AC
+\f/ ROUTINE TO SCAN THRU A TEXT LINE FOR THE FIRST NON-SPACE.
+/ ENTER ROUTINE WITH POINTER TO THE LINE IN THE AC.
+
+/ EXIT: RETURN + 2 WITH AC = POINTER TO NON-SPACE.
+/ RETURN + 1 WITH AC = POINTER TO END OF LINE.
+
+NOSP, 0 /FIND A NON-<SPACE> ROUTINE
+ DCA SCANTP /USE A TEMP POINTER
+ SKP /SKIP INTO LOOP BELOW
+NOSP1, ISZ SCANTP /BUMP THE LINE POINTER
+ TAD I SCANTP /GET A CHAR FROM THE LINE
+ SPA /SKIP IF NOT EOL
+ JMP NOSP3 /EXIT IF EOL
+ TAD [-" !200] /COMPARE WITH <SP> /034 CJL
+ SNA CLA /SKIP IF NOT SPACE
+ JMP NOSP1 /LOOP TILL SPACE OR EOL
+ ISZ NOSP /BUMP RETURN FOR SPACE FOUND
+NOSP3, CLA CLL /INSURE CLEAR AC
+ TAD SCANTP /GET POINTER
+ JMP I NOSP /RETURN IN AC
+
+
+
+/ ROUTINE TO FIND AN END CHAR IN A STRING.
+/ ENTER ROUTINE WITH POINTER TO THE STRING IN THE AC.
+/ EXIT WITH THE POINTER TO THE FIRST MINUS CHAR IN THE AC.
+
+FNDEND, 0 /FIND END CHAR ROUTINE
+ DCA SCANTP /PUT POINTER IN SCANTP
+FEND1, TAD I SCANTP /GET A CHAR FROM THE STRING
+ SPA CLA /SKIP IF NOT END
+ JMP FEND2 /EXIT IF END OF STRING
+ ISZ SCANTP /BUMP THE POINTER
+ JMP FEND1 /LOOP TILL NON-END OF STRING
+
+FEND2, TAD SCANTP /GET POINTER TO NON-END OF STRING
+ JMP I FNDEND /EXIT WITH POINTER IN AC
+
+SCANTP, 0 /USED IN THE SCAN ROUTINES "SP", "NOSP", "FNDNUL"
+\f/ ROUTINE TO LOOKUP THE KEY WORD POINTED TO BY THE AC IN THE /014 CJL
+/ TABLE POINTED TO BY PTABLE.
+
+/ RETURN + 1 IF NO MATCH IS FOUND WITH AC = ENTRY VALUE.
+/ RETURN + 2 IF NO KEYWORD IS FOUND (EOL DETECTED).
+/ RETURN + 3 IF MATCH IS FOUND WITH THE NEXT PARSE POSITION IN THE LINE IN
+/ THE AC AND THE DISPATCH ADDRESS FROM THE TABLE IN "KEYDSP".
+
+KEYPRS, .-. /KEYWORD PARSE ROUTINE
+ DCA LOOK3 /SAVE IN CASE OF FAIL
+ TAD LOOK3 /RE-GET
+/ AND (137) /MAKE CHARACTER UPPER-CASE, NO PARITY /MD013
+ JMS SCNEL /TRY TO SCAN OFF A KEYWORD
+ JMP KP45 /END OF LINE ENCOUNTERED
+ TAD PTABLE /GET ADDRESS OF TABLE
+ DCA LOOK2 /STORE IN LOCAL POINTER
+
+KP10, TAD SCAN1 /GET ADDRESS OF SCAN ELEMENT
+ DCA LOOK1 /INTO LOCAL POINTER
+
+KP20, TAD I LOOK1 /GET A CHARACTER FROM THE SCAN ELEMENT
+ CIA /NEGATE FOR COMPARE
+ TAD I LOOK2 /GET A CHAR FROM THE TABLE ELEMENT
+ SZA CLA /SKIP IF MATCH
+ JMP KP90 /NO MATCH, SET TO LOOK AT NEXT TABLE ENTRY
+ TAD LOOK1 /CHECK IF ALL ENTERED CHARS MATCH
+ CIA /NEGATE TO COMPARE
+ TAD SCAN2 /HAVE WE MATCHED TO THE TERMINATOR?
+ SNA CLA /SKIP IF NO
+ JMP KP40 /YES, GOT ENOUGH TO MATCH
+ ISZ LOOK1 /MORE TO MATCH, BUMP SCAN ELEMENT POINTER
+ ISZ LOOK2 /BUMP TABLE ELEMENT POINTER
+ JMP KP20 /CONTINUE MATCH LOOP
+
+KP40, TAD LOOK2 /GET CURRENT TABLE POINTER
+ JMS FNDEND /FIND A NULL MARK
+ IAC /BUMP BY 1
+ DCA LOOK1 /STORE IN A POINTER
+ TAD I LOOK1 /GET DISPATCH ADDRESS
+ DCA KEYDSP /PUT INTO DISPATCH ADDRESS
+ ISZ KEYPRS /BUMP RETURN
+ ISZ KEYPRS /BUMP AGAIN
+ CLA CLL IAC /AC = 1
+ TAD SCAN2 /GET POINTER TO END OF CURRENT KEY
+ JMP I KEYPRS /RETURN
+
+/ END OF LINE ENCOUNTERED ON PARSE.
+
+KP45, ISZ KEYPRS /BUMP RETURN ONCE FOR EOL
+
+/ NO MATCHES IN THE TABLE HERE.
+
+KP50, TAD LOOK3 /GET ORIGINAL AC
+ JMP I KEYPRS /RETURN
+\f/ FAILURE ON CURRENT TABLE ENTRY, SET FOR NEXT ENTRY (IF THERE IS ONE) AND TRY
+/ AGAIN.
+
+KP90, TAD LOOK2 /GET TABLE POINTER
+ JMS FNDEND /FIND NEXT TABLE ENTRY
+ IAC;IAC /NEXT ENTRY IS 2 PAST THE NULL
+ DCA LOOK2 /RE-SET LOCAL TABLE POINTER
+ TAD I LOOK2 /CHECK END OF TABLE
+ SNA CLA /SKIP IF NOT END OF THE TABLE
+ JMP KP50 /TAKE NOT FOUND EXIT
+ JMP KP10 /TRY MATCH ON THIS ENTRY
+
+LOOK1, .-. /TEMPORARY FOR KEYPRS /014 CJL
+LOOK2, .-. /TEMPORARY FOR KEYPRS /014 CJL
+LOOK3, .-. /TEMPORARY FOR KEYPRS /014 CJL
+
+/ ROUTINE TO MOVE WORDS OF MEMORY. /014 CJL
+
+/ CALLING SEQUENCE:
+
+/ TAD (DESTINATION) /GET DESTINATION ADDRESS
+/ DCA MQ /INTO MQ /032 CJL
+/ TAD (-COUNT) /GET -NUMBER OF WORDS TO MOVE
+/ DCA MOVE4 /SETUP MOVE COUNTER
+/ TAD (SOURCE) /GET SOURCE ADDRESS
+/ JMS I (MOVE0) /CALL MOVE ROUTINE
+/ RETURN /RETURNS HERE
+
+MOVE0, .-. /MOVE ROUTINE /014 CJL
+ DCA MOVE5 /STORE SOURCE ADDRESS IN LOCAL POINTER
+ TAD MQ /GET DESTINATION ADDRESS /032 CJL
+ DCA MOVE6 /STORE IN LOCAL POINTER
+MOVE1, TAD I MOVE5 /GET A WORD FROM THE SOURCE
+ DCA I MOVE6 /MOVE TO DESTINATION
+ ISZ MOVE5 /BUMP SOURCE POINTER
+ ISZ MOVE6 /BUMP DESTINATION COUNTER
+ ISZ MOVE4 /BUMP COUNTER
+ JMP MOVE1 /LOOP
+ JMP I MOVE0 /DONE
+
+MOVE5, .-. /SOURCE POINTER FOR "MOVE"
+MOVE6, .-. /DESTINATION POINTER FOR "MOVE"
+
+ PAGE /014 CJL
+\f/ ROUTINE TO PARSE OFF A DEVICE NAME FROM THE COMMAND LINE. /O14 CJL
+
+/ CALLING SEQUENCE:
+
+/ TAD (POINTER) /AC CONTAINS POINTER TO COMMAND LINE
+/ JMS I [DPARS] /CALL ROUTINE
+/ ERROR RETURN /AC UNCHANGED
+/ GOOD RETURN /AC NOW POINTS TO REST OF LINE
+
+/ DEVNUM= DEVICE NUMBER TO USE.
+/ ":" IS THE FIFTH CHARACTER IF NOT USING DEFAULT DEVICE.
+
+DPARS, .-. /DEVICE PARSE ROUTINE /014 CJL
+ DCA DPAR10 /SAVE INITIAL POINTER TO LINE
+ TAD DPAR10 /GET POINTER
+ JMS I [NOSP] /GET PAST ANY LEADING SPACES
+ JMP DFDEV /GOT END OF LINE, USE DEFAULT DEVICE
+ DCA DPAR11 /SAVE POINTER TO LINE
+ DCA DEVNAME /INITIALIZE THE DEVICE NAME /014 CJL
+ DCA DEVNAME+1 /FOR "INQUIRE" FUNCTION /014 CJL
+ TAD (DEVNAM) /GET ADDRESS OF WHERE TO PUT DEVICE NAME/014 CJL
+ DCA PACK6P /STORE IN PACK6 POINTER
+ DCA PACK6F /INITIALIZE PACK6 FLAG FOR LOW BYTE /014 CJL
+ TAD (-4) /SET UP A COUNTER /014 CJL
+ DCA DPAR13 /FOR NO MORE THAN 4 CHARS
+DPAR1, TAD I DPAR11 /GET A CHAR FROM THE LINE
+ SNA /SKIP IF NOT <EOL> /014 CJL
+ JMP DFDEV /GOT AN <EOL>, USE DEFAULT DEVICE /014 CJL
+ TAD (-":!200) /CHECK FOR ":" /034 CJL
+ SNA CLA /SKIP IF NOT END OF DEVICE NAME
+ JMP DPAR2 /DEVICE NAME SET UP
+ TAD I DPAR11 /RE-GET CHAR
+ ISZ DPAR11 /BUMP LINE POINTER
+ PACK6 /PACK SIX-BIT /014 CJL
+ ISZ DPAR13 /BUMP CHARACTER COUNTER /014 CJL
+ JMP DPAR1 /CAN CONTINUE
+ TAD I DPAR11 /GET CHARACTER AFTER THE FOURTH /014 CJL
+ TAD (-":!200) /CHECK FOR ":" /034 CJL
+ SZA CLA /SKIP IF YES, ALL IS OK
+ JMP DFDEV /USE THE DEFAULT DEVICE
+DPAR2, ISZ DPAR11 /BUMP POINTER PAST ":"
+ TAD (DEVNAM) /GET PARSED DEVICE NAME ADDRESS /014 CJL
+ JMP DPAR4 /DO AN OS/8 "INQUIRE"
+
+DFDEV, CLA CLL /CLEAN UP /019 CJL
+ TAD DPAR10 /GET ORIGINAL AC FOR
+ DCA DPAR11 /RETURN POINTER
+DPAR4, JMS DVNUM /GET DEVICE NUMBER
+ JMP DPAR8 /DEVICE NAME ERROR
+ DCA DEVNUM /RETURN FOR CALLING PROGRAM
+ TAD DPAR11 /GET CURRENT POINTER
+ ISZ DPARS /BUMP RETURN
+ JMP I DPARS /RETURN /014 CJL
+\fDPAR8, CLA CLL /INSURE CLEAR AC
+ TAD DPAR10 /GET ORIGINAL AC
+ JMP I DPARS /TAKE ERROR EXIT
+
+DPAR10, .-. /TEMPORARY FOR DPARS /014 CJL
+DPAR11, .-. /TEMPORARY FOR DPARS /014 CJL
+DPAR13, .-. /TEMPORARY FOR DPARS /014 CJL
+DEFDEV, DEVICE DSK /DEFAULT DEVICE
+DEVNAM, FILENAM ZZZZZZ.ZZ /DEFAULT FILENAME /014 CJL
+
+/ ROUTINE TO RETURN A DEVICE NUMBER FOR A DEVICE NAME. /014 CJL
+
+/ CALLING SEQUENCE:
+
+/ TAD (ADDRESS) /AC=ADDRESS OF DEVICE NAME
+/ /*OR* 0000 IF "DSK:" IS TO BE USED
+/ ERROR RETURN /INVALID DEVICE
+/ GOOD RETURN /AC=DEVICE NUMBER
+
+DVNUM, .-. /DEVICE NUMBER ROUTINE /014 CJL
+ SNA /SKIP IF DEVICE NAME SPECIFIED
+ TAD (DEFDEV) /ELSE USE DEFAULT /014 CJL
+ DCA DVNUM9 /SAVE IN LOCAL POINTER
+ TAD I DVNUM9 /GET FIRST TWO CHARACTERS OF NAME /014 CJL
+ DCA DVNUM5 /PUT INTO CALL
+ ISZ DVNUM9 /BUMP POINTER
+ TAD I DVNUM9 /GET LAST TWO CHARACTERS OF NAME /014 CJL
+ DCA DVNUM5+1 /PUT INTO CALL
+ CIF USRFLD /GOTO USR FIELD /020 CJL
+ JMS I [USRENTRY] /CALL USER SERVICE ROUTINE /035 CJL
+ INQUIRE /INQUIRE ABOUT HANDLER /020 CJL
+DVNUM5, .-. /FIRST TWO BYTES OF DEVICE NAME /014 CJL
+ .-. /LAST TWO BYTES OF DEVICE NAME /014 CJL
+ 0 /ENTRY POINT OF HANDLER RETURNED HERE
+ JMP I DVNUM /ERROR, TAKE ERROR EXIT
+ TAD DVNUM5+1 /DEVICE NUMBER
+ ISZ DVNUM /BUMP RETURN FOR NO ERROR
+ JMP I DVNUM /RETURN
+
+DVNUM9, .-. /LOCAL FOR "DVNUM" /014 CJL
+\f/ DEVICE HANDLER FETCH ROUTINE. /020 CJL
+
+/ CALLING SEQUENCE:
+
+/ TAD (HANDLERNUMBER) /AC CONTAINS DEVICE HANDLER NUMBER
+/ JMS I [HFETCH] /CALL ROUTINE
+/ ERROR RETURN /COULDN'T LOAD HANDLER
+/ GOOD RETURN /HANDLER LOADED
+
+/ IF THE HANDLER WAS LOADED, THEN HNDADR CONTAINS THE HANDLER ENTRY POINT.
+
+HFETCH, .-. /HANDLER FETCH ROUTINE
+ DCA HANDNUMBER /STORE HANDLER NUMBER
+ TAD (HNDLR+1) /GET OUR BUFFER+(TWO PAGE ALLOWED)
+ DCA HADR /STORE IN-LINE
+ TAD HANDNUMBER /GET HANDLER NUMBER AGAIN
+ CIF USRFLD /GOTO USR FIELD
+ JMS I [USRENTRY] /CALL USER SERVICE ROUTINE /035 CJL
+ FETCH /FETCH HANDLER
+HADR, .-. /WILL BE OUR SUGGESTED ADDRESS+TWO PAGES ALLOWED
+ SKP /COULDN'T DO IT
+ ISZ HFETCH /BUMP TO GOOD RETURN
+ CLA CLL /CLEAN UP
+ TAD HADR /GET ACTUAL HANDLER ADDRESS
+ DCA HNDADR /STASH THE POINTER
+ JMP I HFETCH /RETURN EITHER WAY
+
+HANDNUM,.-. /HANDLER NUMBER TEMPORARY
+
+\f/ ROUTINE TO HANDLE THE "FINISH" COMMAND. /021 CJL
+
+FINSRV, 0
+ JMS I [CREST2] /SETUP CONSOLE OUTPUT ROUTINES /025 CJL
+ TAD (MSEND) /GET SEND MODE VALUE /045 CJL
+ DCA KMODE /SETUP PROPER MODE /045 CJL
+ FPACK /FORMAT A PACKET
+ SRVFIN /PACKET DATA ADDRESS
+ STGEN /PACKET TYPE
+
+FIN2, SPACK /SEND PACKET
+ 1 /AWAIT RESPONSE
+ FIN20-2 /DISPATCH LIST FOR RESPONSE /027 CJL
+
+/ NAK OR UNDEFINED RESPONSE HERE
+
+FIN5, ISZ RTRYC /BUMP RE-TRY COUNTER
+ JMP FIN2 /GET RESPONSE AND TRY AGAIN
+ TAD (NOFINISH) /FAILED, RETURN MESSAGE /025 CJL
+ JMP I FINSRV
+
+/ ACK HERE
+
+FIN10, ISZ FINSRV /BUMP FOR NON-ERROR EXIT
+ JMP I FINSRV /DONE
+
+FIN20, STACK; FIN10 /ACK
+ STNAK; FIN5 /NAK
+ 0
+
+SRVFIN, "F&137 /SERVER KERMIT COMMAND TO SHUT DOWN
+ -1 /END OF DATA
+
+ PAGE
+\f/ ROUTINE TO PARSE OFF A FILE NAME.
+/ FILE NAME TO BE PARSED MUST BE LETTERS OR DIGITS AND BE NO MORE THAN
+/ SIX CHARS FOR THE NAME AND TWO CHARS FOR THE EXTENSION.
+
+/ ENTER WITH: AC = POINTER TO FILE NAME TO PARSE.
+/ FNPTR = POINTER TO WHERE TO PUT THE PARSED FILE NAME.
+
+/ NON-ERROR EXIT: AC = POINTER TO REMAINDER OF COMMAND LINE.
+/ RETURN THE CALL + 2.
+
+/ ERROR EXIT: AC = ORIGINAL POINTER.
+/ RETURN THE CALL + 1.
+
+PFNAM, 0
+ DCA PFN10 /SAVE POINTER TO FILE NAME STRING
+ TAD FNPTR /GET POINTER TO FILE NAME BLOCK
+ DCA MQ /SET FOR "CLEAR" ROUTINE /032 CJL
+ TAD (-4 /FOUR WORDS TO CLEAR OUT
+ CLEAR /INIT THE FILE NAME BLOCK
+ TAD PFN10 /GET THE STRING POINTER
+ JMS I [NOSP] /GET PAST ANY LEADING SPACES
+ JMP PFNAM9 /GOT EOL, NO FILE NAME
+ DCA PFN11 /SAVE POINTER
+ TAD FNPTR /GET FILE NAME BLOCK POINTER
+ DCA PACK6P /SET UP THE "PACK6" POINTER
+ DCA PACK6F /INIT THE "PACK6" FLAG
+ TAD (-6 /MAX OF 6 CHARS FOR FILE NAME
+ DCA PFN15 /PUT INTO COUNTER
+ DCA WILDF /INIT THE WILD CARD FLAG
+ JMS NAM /MOVE AND PACK FILE NAME
+ TAD I PFN11 /GET THE TERM CHAR
+ SPA /SKIP IF NOT EOL
+ JMP PFNAM7 /EOL MEANS END OF FILE NAME
+ TAD (-".!200) /COMPARE TO "." /034 CJL
+ SNA /SKIP IF NO
+ JMP PFNAM3 /GO HANDLE EXTENSION
+ TAD (-" +".) /COMPARE TO <SP> /034 CJL
+ SZA CLA /SKIP IF WAS A SPACE
+ JMP PFNAM9 /NOT A SPACE, GOT AN ERROR
+ JMP PFNAM7 /IS A SPACE, END OF FILE NAME
+\fPFNAM3, ISZ PFN11 /BUMP PAST THE "."
+ TAD FNPTR /GET FILE NAME BLOCK POINTER
+ TAD (3) /POINT TO EXTENSION /032 CJL
+ DCA PACK6P /SET "PACK6" POINTER
+ DCA PACK6F /INIT "PACK6" FLAG
+ NL7776 /SET -2 /032 CJL
+ DCA PFN15 /COUNTER FOR 2 EXT CHARS
+ JMS NAM /NOW DO THE EXTENSION
+ TAD I PFN11 /GET THE TERM CHAR
+ SPA /SKIP IF NOT EOL
+ JMP PFNAM7 /GOT COMPLETE FILE NAME HERE
+ TAD [-" !200] /COMPARE TO <SP> /034 CJL
+ SZA CLA /SKIP IF IT WAS
+ JMP PFNAM9 /GOT A FILE NAME ERROR
+PFNAM7, ISZ PFNAM /BUMP RETURN FOR GOOD FILE NAME
+ CLA CLL /INSURE CLEAR AC
+ TAD PFN11 /GET CURRENT STRING POINTER
+ JMP I PFNAM /AND RETURN
+
+PFNAM9, CLA CLL /INSURE CLEAR AC
+ TAD PFN10 /GET ORIGINAL STRING POINTER
+ JMP I PFNAM /TAKE ERROR RETURN
+
+PFN10, 0 /TEMP FOR PFNAM ROUTINE
+PFN11, 0 /TEMP FOR PFNAM ROUTINE
+PFN15, 0 /TEMP FOR PFNAM ROUTINE
+\f/ LOCAL ROUTINE TO "PFNAM" TO MOVE IN THE FILE NAME OR FILE EXTENSION.
+/ ENTER WITH "PFN11" POINTING TO WHERE TO GET THE NAME OR EXTENSION.
+/ AND "PFN15" EQUAL TO THE MAX NUMBER OF CHARS (6 FOR NAME, 2 FOR EXT).
+/ THIS ROUTINE CHECKS FOR WILD CARD CHARS "*" AND "?" AND PUTS THE
+/ "?" CHAR IN FOR ANY CHARS IN THE NAME THAT ARE WILD. ALSO IF ANY
+/ WILD CARD CHARS ARE FOUND THE FLAG "WILDC" IS SET SO BEFORE PARSING
+/ ANY FILE NAME THE "WILDC" FLAG SHOULD BE INITIALIZED.
+
+NAM, 0
+NAM0, TAD I PFN11 /GET A CHAR FROM THE STRING
+ JMS I (ALPNUM) /MUST BE ALPHA OR NUMBER
+ SKP /NOT A ALPHA NUMERIC
+ JMP NAM3 /IS ALPHA NUMERIC
+ TAD (-"?!200) /COMPARE TO "?" /034 CJL
+ SNA /SKIP IF NO
+ JMP NAM2 /YES, JUST PUT IT IN
+ TAD (-"*+"?) /COMPARE TO "*" /034 CJL
+ SZA CLA /SKIP IF YES
+ JMP I NAM /TAKE THE FILE NAME ERROR EXIT
+ ISZ WILDF /SET FLAG FOR WILD CARD FOUND
+NAM1, TAD ["?&77] /GET WILD CARD CHARACTER /034 CJL
+ PACK6 /PUT IN NAME BLOCK
+ ISZ PFN15 /BUMP CHAR COUNTER
+ JMP NAM1 /LOOP TILL ALL FILLED
+ ISZ PFN11 /BUMP THE STRING POINTER
+ JMP NAM9 /EXIT WITH "PFN11" POINTING TO NEXT CHAR
+NAM2, ISZ WILDF /SET FLAG FOR WILD CARD FOUND
+ TAD ["?&77] /GET WILD CARD CHARACTER /034 CJL
+NAM3, PACK6 /PUT THE CHAR INTO THE FILE NAME BLOCK
+ ISZ PFN11 /BUMP THE STRING POINTER
+ ISZ PFN15 /BUMP THE CHAR COUNTER
+ JMP NAM0 /LOOP
+
+NAM4, TAD I PFN11 /NOW GET TO A TERMINATOR CHAR
+ JMS I (ALPNUM) /BY FINDING FIRST NON-ALPHNUMERIC
+ JMP NAM9 /NOW WE CAN QUIT
+ CLA CLL /IGNORE EXCESS CHARS
+ ISZ PFN11 /BUMP THE STRING POINTER
+ JMP NAM4 /LOOP
+
+NAM9, CLA CLL /LEAVE WITH A CLEAR AC
+ JMP I NAM /RETURN
+\f/ ROUTINE TO SEND A PACKET.
+/ ENTER WITH ADDRESS OF PACKET DATA IN CALL + 1.
+/ AND TYPE OF PACKET IN CALL + 2.
+/ EXIT CALL + 4 IF ACK RETURNED.
+/ EXIT CALL + 3 IF NAK OR OTHER PACKET TYPE RETURNED.
+
+SNDP, 0
+ TAD I SNDP /GET DATA ADDRESS
+ DCA SNDP1 /STORE IN CALL
+ ISZ SNDP /BUMP POINTER
+ TAD I SNDP /GET PACKET TYPE
+ DCA SNDP2 /STORE IN CALL
+ ISZ SNDP /BUMP
+
+ FPACK /FORMAT A PACKET
+SNDP1, 0 /DATA ADDRESS GOES HERE
+SNDP2, 0 /PACKET TYPE GOES HERE
+
+SNDP3, SPACK /SEND A DATA PACKET
+ 1 /GET RESPONSE
+ SNDP9-2 /RESPONSE DISPATCH TABLE ADDRESS /027 CJL
+
+/ HERE ON NOT "NAK" OR "ACK" RESPONSE.
+
+ SKP
+
+/ HERE ON "ACK".
+
+SNDP5, ISZ SNDP /BUMP RETURN
+
+ ISZ SNDP /BUMP RETURN
+ JMP I SNDP /EXIT
+
+/ HERE ON NAK.
+
+SNDP4, ISZ RTRYC /BUMP THE RE-TRY COUNTER
+ JMP SNDP3 /RE-TRY
+ JMP I SNDP /TAKE RETURN + 3
+
+SNDP9, STACK; SNDP5 /ACK
+ STACK; SNDP4 /NAK
+ 0
+
+ PAGE /014 CJL
+\f IFZERO 1 <
+
+/ ROUTINE TO PARSE OFF A DECIMAL NUMBER.
+/ ENTER ROUTINE WITH A POINTER TO THE PARSE LINE IN THE AC.
+/ EXIT: RETURN + 1 FOR NO NUMBER.
+/ RETURN + 2 FOR INVALID NUMBER.
+/ RETURN + 3 FOR VALID NUMBER.
+
+/ IN ALL CASES ON RETURN THE AC WILL CONTAIN A POINTER TO THE NEXT CHAR TO PARSE
+/ IN THE LINE. ANY NUMBER PARSED WILL BE CONVERTED TO BINARY AND PUT INTO THE
+/ REGISTER "BININP".
+
+DECPRS, 0
+ JMS I [NOSP] /GET PAST ANY LEADING SPACES
+ JMP I DECPRS /GOT AN END OF LINE, AC POINTS TO IT
+ DCA DP10 /SAVE POINTER TO LINE
+ TAD DP10 /RE-GET POINTER TO LINE
+ DCA DP11 /STORE IN OUR LINE POINTER
+ DCA BININP /INIT BINARY REGISTER
+ DCA DP13 /INIT PARSED NUMBER FLAG
+ SKP /SKIP INTO LOOP BELOW
+DP1, ISZ DP11 /BUMP THE LINE POINTER
+ TAD I DP11 /GET A CHAR FROM THE LINE
+ JMS DECCK /CHECK FOR PROPER ASCII DECIMAL
+ JMP DP5 /NOT PROPER ASCII DECIMAL
+ ISZ DP13 /FLAG NUMBER INPUT
+ TAD (-"0 /MAKE BINARY
+ DCA DP12 /AND STORE
+ TAD BININP /GET PREVIOUS INPUT
+ JMS MUL10 /AND MULTIPLY TIMES 10
+ SZL /SKIP IF NO OVERFLOW ENCOUNTERED
+ JMP DP6 /GOT AN OVERFLOW ERROR
+ TAD DP12 /COMBINE WITH CURRENT INPUT
+ SZL /SKIP IF NO OVERFLOW ERROR
+ JMP DP6 /GOT AN OVERFLOW ERROR
+ DCA BININP /RETURN ACCUMULATED SUM
+ JMP DP1 /LOOP
+
+DP5, CLA CLL /AC MAY NOT BE CLEAR
+ TAD DP13 /ANY NUMBERS INPUT YET?
+ SNA CLA /SKIP IF YES
+ JMP DP6 /TAKE THE NO NUMBER INPUT RETURN
+ ISZ DECPRS /BUMP THE RETURN
+ ISZ DECPRS /TWICE FOR GOOD NUMBER INPUT RETURN
+ TAD DP11 /GET POINTER TO LINE
+ JMP I DECPRS /AND RETURN
+
+DP6, CLA CLL /AC MAY NOT BE CLEAR
+ TAD DP10 /GET ORIGINAL LINE POINTER
+ ISZ DECPRS /BUMP THE RETURN
+ JMP I DECPRS /TAKE THE INVALID NUMBER RETURN
+
+ >
+\f IFZERO 1 <
+
+DP10, 0 /TEMP FOR DECPRS
+DP11, 0 /TEMP FOR DECPRS
+DP12, 0 /TEMP FOR DECPRS
+DP13, 0 /TEMP FOR DECPRS
+
+/ ROUTINE TO MULTIPLY THE VALUE OF THE AC TIMES 10.
+/ VALUE IN THE AC IS ASSUMED BINARY.
+
+/ THE NUMBER IS RETURNED IN THE AC. IF THE LINK IS SET THE MULTIPLY
+/ OVERFLOWED 12 BITS.
+
+MUL10, 0
+ DCA MULTMP /SAVE THE NUMBER
+ TAD MULTMP /GET THE NUMBER BACK
+ CLL RTL /MULTIPLY TIMES 4
+ TAD MULTMP /TIMES 5
+ SNL /SKIP IF ALREADY OVERFLOWED /025 CJL
+ RAL /TIMES 10
+ JMP I MUL10 /RETURN NUMBER IN AC
+ /THE LINK HAS ANY OVERFLOW
+
+MULTMP, 0 /TEMP STORAGE FOR MUL10 ROUTINE
+
+
+
+/ ROUTINE TO CHECK FOR A VALID ASCII DECIMAL VALUE.
+
+/ ENTER WITH ASCII CHAR IN THE AC.
+/ EXIT RETURN + 1 IF NON-VALID ASCII DECIMAL WITH CHAR IN AC.
+/ EXIT RETURN + 2 IF VALID ASCII DECIMAL WITH CHAR IN AC.
+
+DECCK, 0
+ DCA DECCK5 /STORE THE CHAR TO CHECK
+ TAD DECCK5 /GET THE CHAR
+ TAD (-"0 /CHECK FOR LESS THAN 0
+ SPA /SKIP IF NOT LESS THAN 0
+ JMP DECCK1 /NON-ASCII DECIMAL
+ TAD ("0-"9-1 /CHECK GREATER THAN 9
+ SMA CLA /SKIP IF LE 9
+ JMP DECCK1 /INVALID ASCII DECIMAL
+ ISZ DECCK /BUMP RETURN FOR VALID ASCII DECIMAL
+DECCK1, TAD DECCK5 /RE-GET ORIGINAL CHAR IN AC
+ JMP I DECCK /RETURN
+
+
+DECCK5, 0 /TEMP FOR "DECCK" ROUTINE
+
+ >
+\f/ ROUTINE TO INPUT A COMMAND LINE FROM THE KEYBOARD. /013/014 CJL
+
+LININP, 0
+ TAD (LINBUF /GET ADDRESS OF LINE BUFFER
+ DCA LIN50 /STORE IN A POINTER
+LIN1, JMS I (INPUT) /GET A CHARACTER FROM THE KEYBOARD /044 CJL
+ TAD (-CNTRLM) /COMPARE TO <CR> /034 CJL
+ SNA /SKIP IF NOT A RETURN
+ JMP LIN2 /LINE IS INPUT
+ TAD (-DELETE+CNTRLM)/COMPARE TO <DEL> /034 CJL
+ SNA CLA /SKIP IF NOT A DELETE
+ JMP LIN5 /OFF TO HANDLE A DELETE
+ TAD LIN50 /GET VALUE OF LINE POINTER
+ TAD (-LINBUF-LINSIZ /COMPARE WITH END OF LINE BUFFER
+ SMA CLA /SKIP IF ROOM IN LINE BUFFER
+ JMP LIN10 /BEEP FOR FULL BUFFER
+ TAD INCHAR /GET THE KEYBOARD CHARACTER AGAIN /044 CJL
+ TAD (-140) /COMPARE TO LOWER-CASE LIMIT /034 CJL
+ SMA /SKIP IF BELOW LIMIT /034 CJL
+ TAD [-40] /ELSE MAKE IT UPPER-CASE /034 CJL
+ TAD (140) /RESTORE THE CHARACTER /034 CJL
+ DCA I LIN50 /STORE IN THE LINE BUFFER
+ ISZ LIN50 /BUMP THE LINE BUFFER POINTER
+ NL7777 /SET -1 /032 CJL
+ DCA I LIN50 /TERMINATE THE LINE
+ TAD INCHAR /GET THE LATEST KEYBOARD CHARACTER BACK /044 CJL
+ JMS I [P7ECHO] /PRINT IT /043 CJL
+ JMP LIN1 /LOOP TILL A RETURN TYPED
+
+LIN2, NL7777 /SET -1 /032 CJL
+ DCA I LIN50 /INSURE STRING TERMINATED
+ JMS I [SCRIBE] /DO A /025 CJL
+ CRLF /<CR>, <LF> /025 CJL
+ JMP I LININP /DONE
+
+/ HANDLE A DELETE TYPED IN
+
+LIN5, TAD LIN50 /FIND OUT FIRST IF...
+ TAD (-LINBUF /WE ARE AT THE BEGINNING OF THE LINE
+ SNA CLA /SKIP IF NO
+ JMP LIN1 /JUST IGNORE THE DELETE
+ NL7777 /SET -1 /032 CJL
+ TAD LIN50 /GET THE LINE POINTER
+ DCA LIN50 /RETURN BACKED UP
+ DCA I LIN50 /ZERO THE CHAR
+ TAD (CNTRLH) /GET A <BS> /025 CJL
+ JMS I [P7ECHO] /PRINT IT /043 CJL
+ TAD [" &177] /GET A <SPACE> /025 CJL
+ JMS I [P7ECHO] /PRINT IT /043 CJL
+ TAD (CNTRLH) /GET A <BS> /025 CJL
+ JMS I [P7ECHO] /PRINT IT /043 CJL
+ JMP LIN1 /BACK TO INPUT
+\f/ HANDLE FULL LINE BUFFER HERE
+
+LIN10, CLA CLL /ENSURE CLEAR AC
+ TAD [CNTRLG] /GET A <BEL> CHARACTER /025 CJL
+ JMS I [P7ECHO] /PRINT IT /043 CJL
+ JMP LIN1 /WAIT FOR EITHER RETURN OF DELETE KEY
+
+LIN50, 0 /TEMP POINTER FOR "LININP" ROUTINE
+\f/ ROUTINE TO PACK TWO SIX-BIT CHARACTERS INTO A WORD. /032 CJL
+
+/ CALLING SEQUENCE:
+
+/ [PACK6PTR => CHARACTER PACKING AREA].
+/ [PACK6FLAG=0 IF PACKING INTO HIGH-ORDER BYTE.
+/ PACK6FLAG=4000 IF PACKING INTO LOW-ORDER BYTE].
+
+/ TAD CHAR /AC CONTAINS CHARACTER TO BE PACKED
+/ PACK6 /CALL VIA PAGE ZERO POINTER
+
+/ RETURNS WITH AC CLEAR AND PACK6PTR AND PACK6FLAG UPDATED FOR NEXT PACKING.
+
+PACK60, .-. /PACK SIX-BIT ROUTINE
+ AND [77] /JUST SIX-BIT
+ DCA PACK6TEMP /SAVE FOR NOW
+ NL4000 /SET INVERSION BIT
+ TAD PACK6FLAG /REVERSE THE FLAG
+ DCA PACK6FLAG /STORE BACK
+ SZL /WAS IT CLEAR?
+ JMP PACKIT /NO, GO DO LOW-ORDER
+ TAD PACK6TEMP /GET THE CHARACTER
+ RTL;RTL;RTL /MOVE UP
+ DCA I PACK6PTR /STORE IT
+ JMP I PACK60 /RETURN
+
+PACKIT, TAD I PACK6PTR /GET PREVIOUS HIGH-ORDER HALFWORD
+ TAD PACK6TEMP /ADD ON LATEST
+ DCA I PACK6PTR /STORE BOTH
+ ISZ PACK6PTR /BUMP FOR NEXT TIME
+ JMP I PACK60 /RETURN
+
+PACK6TE,.-. /PACK6 TEMPORARY
+\f/ ROUTINE TO COMPARE TWO FILE NAMES FOR EQUALITY.
+/ THE ROUTINE WILL CHECK EACH OF THE 8 FILE NAME CHARS AND IF A
+/ CHAR IN THE FIRST FILE NAME (THE ONE WE ARE LOOKING FOR) CONTAINS
+/ A "?" IT WILL MATCH ON THE SECOND FILE NAME CHAR.
+/ ENTER WITH "FCMP1" POINTING TO THE FILE NAME TO FIND, AND "FCMP2"
+/ POINTING TO THE FILE NAME TO TRY AND MATCH. EXIT + 1 IF NO MATCH
+/ AND EXIT + 2 IF MATCH. (IF NON-ZERO AC ON ENTRY, THE AC IS ASSUMED
+/ TO HAVE THE VALUE FOR "FCMP2".)
+
+FMATCH, 0
+ SZA /SKIP IF NO ARGUMENT IN AC
+ DCA FCMP2 /THIS ARGUMENT CAME IN THE AC
+ TAD FCMP1 /GET ADDRESS OF FIRST FILE NAME BLOCK
+ DCA GET6P /STORE IN A POINTER
+ DCA GET6F /INIT FLAG FOR "GET6" ROUTINE
+ TAD FCMP2 /GET ADDRESS OF SECOND FILE NAME BLOCK
+ DCA FMATP /STORE IN A LOCAL POINTER
+ DCA FMATF /INIT LOCAL FLAG
+ TAD (-10 /8 CHARS TO DO
+ DCA FMATC /STORE IN LOCAL COUNTER
+
+FMAT1, NL4000 /SET 4000 /032 CJL
+ TAD FMATF /GET FLAG
+ DCA FMATF /RETURN FLAG, LINK CONTAINS STATUS
+ TAD I FMATP /GET A WORD FROM THE SECOND NAME
+ SZL /SKIP IF HIGH-ORDER WANTED NOW /032 CJL
+ JMP FSWIT /JUMP IF LOW-ORDER WANTED NOW /032 CJL
+ RTR;RTR;RTR /MOVE DOWN HIGH-ORDER /032 CJL
+ SKP /DON'T BUMP YET /032 CJL
+FSWIT, ISZ FMATP /BUMP THE POINTER /032 CJL
+ AND [77] /KEEP ONLY BOTTOM 6 BITS /016 CJL
+ DCA FMATT /STORE IN A TEMP
+ GET6 /NOW GET A CHAR FROM FIRST NAME
+ TAD (-77 /CHECK IF WILD
+ SNA /SKIP IF NO
+ JMP FMAT2 /NO MATCH CHECK ON A WILD CARD
+ TAD [77] /RESTORE THE CHARACTER /014/016 CJL
+ CIA /NEGATE FOR COMPARE
+ TAD FMATT /COMPARE WITH SECOND FILE NAME
+ SZA CLA /SKIP IF IS A MATCH
+ JMP I FMATCH /THIS IS NOT A MATCH
+
+FMAT2, ISZ FMATC /BUMP COUNTER
+ JMP FMAT1 /LOOP, MORE TO CHECK
+ ISZ FMATCH /BUMP RETURN FOR MATCH
+ JMP I FMATCH /GOT A MATCH
+
+FMATP, 0 /POINTER FOR "FMATCH"
+FMATC, 0 /COUNTER FOR "FMATCH"
+FMATF, 0 /FLAG FOR "FMATCH"
+FMATT, 0 /TEMP FOR "FMATCH"
+FCMP1, 0 /POINTER FOR FIRST FILE NAME BLOCK
+FCMP2, 0 /POINTER FOR SECOND FILE NAME BLOCK
+\f PAGE /014 CJL
+\f/ REMOTE LINK INPUT ROUTINE.
+/ CALL = RPACK.
+
+ILINK, 0
+ TAD RETRY /SET UP A RE-TRY COUNT
+ DCA ILINK6 /RE-TRY COUNT FOR INPUT ERRORS
+
+ILINK0, JMS I (GETSOH) /FIRST GET THE "SOH" BYTE
+ JMP ILINK2 /RETURN HERE ON TIME-OUT
+ DCA ILINK9 /INIT CHECKSUM REGISTER
+ TAD [RRLEN] /GET REMOTE RECEIVE BUFFER ADDRESS
+ DCA ILINK8 /STORE IN LOCAL POINTER
+ JMS I (GETIR) /GET A CHAR
+ JMP ILINK2 /GOT A RETURN OR TIME-OUT
+ DCA I ILINK8 /STORE LENGTH IN BUFFER
+ TAD I ILINK8 /GET LENGTH CHAR BACK
+ TAD (-40-1 /CHAR FUNCTION - LENGTH BYTE
+ CIA /NEGATE FOR COUNTER
+ DCA ILINK7 /STORE IN LOCAL COUNTER
+
+ILINK1, ISZ ILINK8 /BUMP POINTER
+ JMS I (GETIR) /GET NEXT CHAR
+ JMP ILINK2 /GOT A RETURN
+ DCA I ILINK8 /STORE IN BUFFER
+ ISZ ILINK7 /BUMP COUNTER
+ JMP ILINK1 /LOOP
+
+ ISZ ILINK8
+ NL7777 /SET -1 /032 CJL
+ DCA I ILINK8
+ TAD ILINK9 /GET CALCULATED CHECKSUM
+ JMS I [CKSUM] /CALCULATE 1 BYTE CHECKSUM
+ CIA /NEGATE FOR COMPARE
+ DCA ILINK7 /STORE TEMP
+ JMS I (GETIR) /NOW GET CHECKSUM
+ JMP ILINK2 /GOT A RETURN
+ TAD ILINK7 /COMPARE WITH CALCULATED CHECKSUM
+ SNA CLA /SKIP IF NOT SAME
+ JMP ILINK4 /ARE SAME
+
+ILINK2, CLA CLL /INSURE CLEAR AC
+ ISZ ILINK6 /BUMP RE-TRY COUNTER
+ JMP ILINK3 /CAN RE-TRY
+ TAD (RPERMSG) /GET MESSAGE FOR FATAL PACKET ERROR /025 CJL
+ JMP I [CLOOP7] /AND ABORT THE MESS
+
+ILINK3, TAD ABFLAG /GET ABORT FLAG /044 CJL
+ SZA CLA /SKIP IF NO
+ JMP I (ABORT) /ABORT THIS
+ JMS I (SNDNAK) /SEND BACK A "NAK"
+ JMP ILINK0 /AND TRY AGAIN
+\fILINK4, TAD ABFLAG /GET ABORT FLAG /044 CJL
+ SNA CLA /SKIP IF YES
+ JMP I ILINK /NOPE, RETURN
+ JMP I (ABORT)
+
+ILINK6, 0 /LOCAL TO "ILINK"
+ILINK7, 0 /LOCAL TO "ILINK"
+ILINK8, 0 /LOCAL TO "ILINK"
+ILINK9, 0 /LOCAL TO "ILINK"
+
+/ HELP COMMAND ROUTINE. /024 CJL
+
+HELPSRV,.-. /HELP ROUTINE
+ JMS I [CRESET] /RESET CONSOLE ROUTINE STUFF
+ JMS I [SCRIBE] /GIVE THEM THE
+ HELPMSG /HELP MESSAGE
+ TAD ESCHAR /GET THE ESCAPE CHARACTER
+ JMS I [ESCPRNT] /PRINT IT
+ JMS I [SCRIBE] /DO A
+ CRLF /<CR>, <LF>
+ ISZ HELPSRV /BUMP PAST ERROR RETURN
+ JMP I HELPSRV /RETURN
+
+/ ROUTINE TO PRINT THE DATA IN THE RECEIVED PACKET.
+
+PRIPAK, 0
+ PRI8B; RRDTA /PRINT THE DATA
+ JMS I [SCRIBE] /DO A /025 CJL
+ CRLF /<CR>, <LF> /025 CJL
+ JMP I PRIPAK /DONE
+
+ PAGE /014 CJL
+\f/ ROUTINE TO SERVICE A SEND REQUEST.
+
+SNDSRV, 0
+ JMS I [CREST2] /SETUP CONSOLE OUTPUT ROUTINES /025 CJL
+ TAD (MSEND) /FIRST SET MODE TO SEND
+ DCA KMODE /PUT INTO MODE FLAG
+ TAD LPTR /GET CURRENT LINE POINTER
+ DCA PRSERR /SAVE LINE POSITION
+ TAD PRSERR /GET LINE POSITION
+ JMS I [DPARS] /TRY TO PARSE OFF A DEVICE NAME
+ JMS SNDERROR /RETURN A DEVICE NAME ERROR /026 CJL
+SER1, DCA PRSERR /SAVE LINE POINTER /026 CJL
+ TAD (FNBLK /GET FILE NAME BLOCK ADDRESS
+ DCA FNPTR /STORE IN POINTER
+ TAD PRSERR /GET STRING POINTER
+ JMS I [PFNAM] /PARSE OFF THE FILE NAME
+ JMS SNDERROR /FILE NAME PARSE ERROR /026 CJL
+SER2, DCA PRSERR /SAVE THE STRING POINTER /026 CJL
+ TAD PRSERR /GET THE STRING POINTER
+ JMS I [NOSP] /FIND THE END OF STRING
+ SKP /GOT END OF STRING HERE
+ JMS SNDERROR /SYNTAX ERROR /026 CJL
+SER3, DCA PRSERR /RETURN POINTER /026 CJL
+ TAD DEVNUM /GET THE DEVICE NUMBER PARSED
+ JMS I [HFETCH] /FETCH A HANDLER FOR THIS
+ JMS SNDERROR /HANDLER FETCH ERROR /026 CJL
+SER4, DCA FILFND /INIT FILE FOUND FLAG
+ DCA INIFLG /CLEAR THE INIT DONE FLAG
+ NL0001 /INITIALIZE DIRECTORY /028 CJL
+ DCA SLFLAG /LOOKUP FLAG /028 CJL
+SNDSV1, TAD (FNBLK /GET FILE NAME BLOCK ADDRESS
+ DCA I (FCMP1) /SET FOR FILE TO FINE
+ TAD SLFLAG /GET DIRECTORY FLAG /028 CJL
+ JMS I (LUKUP) /FIND A MATCH FOR THIS FILE
+ JMS SNDERROR /DIRECTORY I/O ERROR /026 CJL
+SER5, JMP S00 /FILE NOT FOUND /026 CJL
+ ISZ FILFND /BUMP FILE FOUND COUNT
+ DCA SLFLAG /DON'T INITIALIZE LOOKUP AGAIN
+ JMS I (SNDPRO) /PROCESS THIS FILE FOR SEND
+ JMS SNDERROR /ERROR IN FILE SEND PROCESS /026 CJL
+SER6, TAD WILDF /WAS WILD CARD FILE SPEC? /026 CJL
+ SZA CLA /SKIP IF NO
+ JMP SNDSV1 /GOT WILD CARD, TRY FOR NEXT
+S00, TAD FILFND /CHECK FOR ANY FILES FOUND
+ SNA CLA /SKIP IF YES
+ JMS SNDERROR /RETURN FILE NOT FOUND ERROR /026 CJL
+SER7, JMS BRKXMT /BREAK THE SEND /026 CJL
+ TAD PRSERR /GET CURRENT CURSOR POSITION
+ DCA LPTR /UPDATE
+ ISZ SNDSRV /BUMP RETURN
+ JMP I SNDSRV /AND DONE
+\f/ SEND ERRORS COME HERE. /026 CJL
+
+SNDERRO,.-. /SEND ERROR ROUTINE
+ CLA /CLEAN UP
+ TAD SNDERROR /GET CALLER
+ JMS I [SRCHTABLE] /GO MATCH IT
+ SNERTABLE-1-1 /IN ERROR TABLE
+ JMP I SNDSRV /TAKE ERROR EXIT WITH MESSAGE ADDRESS IN AC
+
+/ SEND ERROR MESSAGE DISPATCH TABLE. /026 CJL
+
+SNERTAB,-SER1; DNERMSG /DEVICE NAME ERROR
+ -SER2; FNERMSG /FILE NAME ERROR
+ -SER3; FSERMSG /FILE NAME SYNTAX ERROR
+ -SER4; SHFEMSG /HANDLER FETCH ERROR
+ -SER5; SDERMSG /DIRECTORY I/O ERROR
+ -SER6; SNDEMSG /SEND ERROR
+ -SER7; NOTFND /LOOKUP
+ 0 /THIS ENDS THE LIST
+
+FILFND, 0 /HOLDS COUNT OF # OF FILES FOUND
+SLFLAG, .-. /LOOKUP INITIALIZE FLAG /028 CJL
+FNBLK, 0
+ 0
+ 0
+ 0
+\f/ ROUTINE TO RE-SET THE SEND.
+
+BRKXMT, .-.
+ CLA CLL /INSURE CLEAR AC
+ DCA INIFLG /CLEAR THE INIT SEND FLAG
+ FPACK /FORMAT A PACKET
+ NODATA /NO DATA FOR THIS PACKET
+ STEOT /"EOT" PACKET TYPE
+ SPACK /SEND THE PACKET
+ 1 /READ RESPONSE /042 CJL
+ 0 /DO NOT DISPATCH /042 CJL
+ JMP I BRKXMT /DONE
+
+/ ROUTINE TO SEND OUT A NAK WITHOUT DISTURBING THE NORMAL PACKET BUFFER.
+
+SNDNAK, 0
+ NL7777 /-1 /042 CJL
+ TAD CURSEQ /ADD ON CURRENT SEQUENCE NUMBER /042 CJL
+ AND [77] /MODULO 64 /042 CJL
+ TAD [40] /TAKE CHAR(SEQUENCE NUMBER) /042 CJL
+ DCA NAKPAK+2 /PUT IN NAK PACKET BUFFER
+ TAD NAKPAK+1 /GET LENGTH
+ TAD NAKPAK+2 /GET SEQ
+ TAD NAKPAK+3 /GET TYPE
+ JMS I [CKSUM] /CALCULATE CHECKSUM
+ DCA NAKPAK+4 /PUT IN CHECKSUM
+ TAD REOL /GET ANY EOL REQUIRED
+ TAD [-40] /UN-CHAR IT /014/016 CJL
+ SNA /SKIP IF USING
+ NL7777 /NO EOL, PUT IN -1 INSTEAD /032 CJL
+ DCA NAKPAK+5 /PUT EOL IN
+ REM8B; NAKPAK /SEND NAK TO REMOTE
+ JMP I SNDNAK /DONE
+
+
+NAKPAK, CNTRLA /MARK /042 CJL
+ " &77+3 /LENGTH OF NAK PACKET /042 CJL
+ .-. /SEQUENCE NUMBER GOES HERE /042 CJL
+ STNAK /DATA TYPE
+ .-. /CHECKSUM /042 CJL
+ .-. /<EOL> IF USED /042 CJL
+ -1 /TERMINATE
+
+/ FILENAME BUFFER. /014 CJL
+
+NAMBUFF,ZBLOCK 12 /FILENAME.EXTENSION (WITH TERMINATOR) GOES HERE
+\f PAGE /014 CJL
+\f/ ROUTINE TO SERVICE A "GET" COMMAND.
+
+GETSRV, 0
+ JMS I [CREST2] /SETUP CONSOLE OUTPUT ROUTINES /025 CJL
+ TAD (MREC) /GET OUR MODE VALUE /045 CJL
+ DCA KMODE /SETUP NOW /045 CJL
+ TAD LPTR /GET CURRENT LINE POINTER
+ DCA PRSERR /SAVE
+ TAD PRSERR /RE-GET IT
+ JMS I [DPARS] /PARSE OFF THE DEVICE NAME /006/014 CJL
+ JMP GSRV50 /ERROR IN DEVICE NAME /006
+ JMS I [NOSP] /FIND BEGINNING OF A FILE NAME
+ JMP GSRV22 /GOT <EOL>, NO FILE NAME /006/014 CJL
+ DCA GSRV90 /STORE BEGINNING ADDRESS
+ TAD GSRV90 /NOW WE LOOK FOR
+ JMS I [SP] /THE END OF THE LINE
+ SKP /GOT THE END OF THE LINE HERE
+ JMP .-2 /NOT END YET, CONTINUE
+ DCA PRSERR /STORE POINTER TO EOL
+ NL7777 /SET -1 /032 CJL
+ DCA I PRSERR /TERMINATE FILE NAME WITH -1
+ DCA CURSEQ /RE-SET THE SEQUENCE
+ TAD GSRV90 /GET ADDRESS OF FILE NAME
+
+GSRV10, FPACK /FORMAT THE PACKET
+GSRV90, 0 /DATA ADDRESS HERE
+ STRIN /RECIEVE INIT PACKET
+
+GSRV12, SPACK /SEND THE PACKET
+ 1 /GET RESPONSE
+ GSRV80-2 /DISPATCH TABLE /027 CJL
+
+/ SERVICE A NAK OR UNDEFINED.
+
+GSRV15, ISZ RTRYC /BUMP THE RE-TRY COUNTER
+ JMP GSRV12 /TRY AGAIN
+ JMP I GETSRV /GIVE UP
+
+/ SERVICE A SEND/INIT FROM THE REMOTE.
+
+GSRV20, JMS I (INPSRV) /HANDLE JUST LIKE A RECEIVE
+ JMP GSRV21 /ERROR RETURN FROM "INPSRV"
+ ISZ GETSRV /BUMP RETURN FOR NO ERROR
+ TAD PRSERR /UPDATE THE CURRENT LINE POINTER
+ DCA LPTR
+GSRV21, JMP I GETSRV
+
+GSRV22, CLA CLL /MAKE SURE WE ARE CLEAR /009/014 CJL
+ TAD [NOTFND] /GET ERROR MESSAGE ADDRESS /025 CJL
+ JMP I GETSRV /TAKE ERROR RETURN /009/014 CJL
+
+/ GOT AN ERROR PACKET, DISPLAY ERROR AND ABORT.
+
+GSRV40, JMS I [PRIPAK] /PRINT OUT THE ERROR PACKET
+ JMP I GETSRV /TAKE THE ERROR EXIT
+\f/ GOT DEVICE ERROR. /006/014 CJL
+
+GSRV50, CLA CLL /ENSURE CLEAR AC /006/014 CJL
+ TAD (DNERMSG) /GET ERROR MESSAGE ADDRESS /025 CJL
+ JMP I GETSRV /TAKE ERROR RETURN /006/014 CJL
+
+/ DISPATCH TABLE.
+
+GSRV80, STERR; GSRV40 /ERROR PACKET RETURNED
+ STSIN; GSRV20 /SEND INIT PACKET RETURNED
+ STNAK; GSRV15 /NAK PACKET RETURNED
+ 0 /TERMINATE TABLE
+\f/ ROUTINE TO SERVICE A "RECEIVE" COMMAND.
+
+RECSRV, 0
+ JMS I [CREST2] /SETUP CONSOLE OUTPUT ROUTINES /025 CJL
+ TAD (MREC) /GET OUR MODE VALUE /045 CJL
+ DCA KMODE /SETUP NOW /045 CJL
+ TAD LPTR /GET CURRENT LINE POINTER
+ DCA PRSERR /SAVE IT
+ TAD PRSERR /GET IT BACK
+ JMS I [DPARS] /PARSE OFF DEVICE NAME /018 CJL
+ JMP RECS30 /ERROR IN DEVICE NAME /018 CJL
+ JMS I [NOSP] /CHECK IF BEGINNING OF FILE NAME /014 CJL
+ SKP /GOT <EOL> HERE /018 CJL
+ JMP RECS60 /SOMETHING ELSE ON LINE, ERROR /014 CJL
+ DCA PRSERR /SAVE CURRENT LINE POINTER /018 CJL
+ RPACK /GET SEND/INIT PACKET FROM REMOTE
+ JMS I (DISPATCH) /DISPATCH BASED ON RRTYP /031 CJL
+ RECS80-2 /TABLE ADDRESS /027/031 CJL
+ JMP RECS60 /DON'T KNOW WHAT IT IS
+
+/ GOT A SEND INIT PACKET.
+
+RECS10, JMS I (INPSRV) /OFF TO HANDLE INPUT
+ JMP RECS60 /ERROR RETURN
+
+/ TAKE THE NON-ERROR RETURN.
+
+RECS20, ISZ RECSRV /BUMP FOR NON-ERROR RETURN
+ TAD PRSERR /GET CURRENT CURSOR POSITION /018 CJL
+ DCA LPTR /UPDATE IT /018 CJL
+ JMP I RECSRV
+
+/ GOT ERROR IN DEVICE NAME. /018 CJL
+
+RECS30, CLA CLL /CLEAN UP /018 CJL
+ TAD (DNERMSG) /GET ERROR MESSAGE ADDRESS /025 CJL
+ JMP I RECSRV /TAKE ERROR RETURN /018 CJL
+
+/ TAKE THE ERROR RETURN.
+
+RECS60, CLA
+ JMP I RECSRV /TAKE ERROR EXIT
+
+/ DISPATCH TABLE.
+
+RECS80, STSIN; RECS10 /SEND INIT PACKET DISPATCH
+ STEOT; RECS60 /END OF CONNECTION
+ STBRK; RECS20 /BREAK TRANSMISSION
+ 0
+
+RECS90, 0 /TEMP FOR "RECSRV"
+\f/ KEYBOARD LINE BUFFER. /014 CJL
+
+LINBUF, ZBLOCK LINSIZE /LINE BUFFER
+
+ PAGE /014 CJL
+\f/ ROUTINE TO SERVICE INPUT OF A FILE.
+
+INPSRV, 0
+ JMS I (SETINI) /SET UP INIT REGISTERS
+ DCA OFFLG /INITIALIZE OUTPUT FILE FLAG /036 CJL
+ CIF USRFLD /GOTO USR FIELD /037 CJL
+ JMS I [USRENTRY] /CALL USER SERVICE ROUTINE /037 CJL
+ RESET /RESET TABLES /037 CJL
+ DCA CURSEQ /RE-SET THE SEQUENCE NUMBER
+
+ FPACK /FORMAT A PACKET
+ INIDAT /PACKET DATA ADDRESS
+ STACK /"ACK" PACKET TYPE
+
+
+INPS01, SPACK /SEND A PACKET
+ 1 /AWAIT RESPONSE
+ INPS91-2 /DISPATCH TABLE ADDRESS /027 CJL
+
+/ NAK OR UNDEFINED RESPONSE HERE.
+
+INPS02, ISZ RTRYC /GOT A NAK, CHECK RE-TRY COUNT
+ JMP INPS01 /RE-TRY THE INIT
+ JMS INPERROR /GIVE UP /025 CJL
+
+ IER02= . /ERROR TABLE ADDRESS /039 CJL
+
+INPS03, FPACK /FORMAT A PACKET
+ NODATA /NO DATA
+ STACK /"ACK" PACKET TYPE
+
+INPS05, SPACK /SEND A PACKET
+ 1 /AWAIT RESPONSE
+ INPS90-2 /DISPATCH TABLE ADDRESS /027 CJL
+ JMS INPERROR /UNDEFINED RESPONSE /025 CJL
+
+ IER05= . /ERROR TABLE ADDRESS /039 CJL
+
+/ GOT A DATA PACKET, WRITE TO OUTPUT FILE.
+
+INPS10, TAD OFFLG /CHECK THE OUTPUT FILE FLAG
+ SNA CLA /SKIP IF OUTPUT FILE OPEN
+ JMS INPERROR /ABORT AND EXIT /025 CJL
+IER10, JMS I (WRIPAK) /WRITE THE PACKET TO THE FILE /039 CJL
+ JMS INPERROR /ERROR WRITING PACKET /025 CJL
+IER11, JMP INPS03 /LOOP /039 CJL
+\f/ GOT A FILE HEADER PACKET, OPEN FILE.
+
+INPS20, TAD OFFLG /CHECK IF OUTPUT FILE OPEN
+ SZA CLA /SKIP IF NO
+ JMS INPERROR /ABORT IF FILE ALREADY OPEN /025 CJL
+IER20, TAD I [RRLEN] /GET CURRENT PACKET LENGTH /039 CJL
+ TAD (-40-3 /CALCULATE LENGTH OF DATA
+ SPA /SKIP IF DATA IN THE PACKET
+ JMS INPERROR /ELSE AN ERROR /025 CJL
+IER21, TAD (RRDTA) /CALCULATE LAST BYTE IN DATA /039 CJL
+ DCA INPS81 /STORE IN POINTER
+ NL7777 /SET -1 /032 CJL
+ DCA I INPS81 /TERMINATE NAME WITH A MINUS WORD
+ TAD (FNBLK /GET ADDRESS OF FILE NAME BLOCK
+ DCA FNPTR /SAVE FOR NAME PARSE
+ TAD (RRDTA /GET ADDRESS OF DATA IN PACKET
+ JMS I [PFNAM] /PARSE OFF THE FILE NAME
+ JMS INPERROR /ERROR IN FILE NAME /025 CJL
+
+/ GET TARGET DEVICE.
+
+IER23, CLA CLL /CLEAR AC FROM FILE NAME PARSE /039 CJL
+ TAD DEVNUM /GET DEVICE NUMBER PARSED /006
+ DCA ODNUMB /SAVE OUTPUT DEVICE NUMBER
+ TAD ODNUMB /GET NUMBER BACK
+ JMS I [HFETCH] /FETCH HANDLER FOR THIS DEVICE
+ JMS INPERROR /HANDLER FETCH ERROR /025 CJL
+IER24, TAD (FNBLK) /GET ADDRESS OF FILE NAME BLOCK /039 CJL
+ DCA INPS22 /PUT IN CALL
+ TAD ODNUMB /GET DEVICE NUMBER
+ CIF USRFLD /GOTO USR FIELD /020 CJL
+ JMS I [USRENTRY] /CALL USER SERVICE ROUTINE /035 CJL
+ ENTER /ENTER TENTATIVE FILE /020 CJL
+INPS22, 0 /
+ 0 /
+ JMS INPERROR /NO DIRECTORY ROOM /025 CJL
+IER22, TAD INPS22 /GET NEW FILE START BLOCK /039 CJL
+ DCA FSBLK /SAVE
+ TAD INPS22+1 /GET INDICATED MAXIMUM FILE SIZE /021 CJL
+ IAC /GIVE ONE MORE THAN 2 LESS /021 CJL
+ DCA FLEN /SAVE AS DANGER COUNT /021 CJL
+ ISZ OFFLG /SET FLAG FOR OUTPUT FILE OPEN
+ NL7777 /INDICATE INITIALIZATION /020 CJL
+ JMS I [PUTBYTE] /INITIALIZE OUTPUT FILE ROUTINE /020 CJL
+ HLT /THIS CAN'T HAPPEN! /020 CJL
+ TAD FNPTR /GET POINTER TO 6 BIT FILE NAME
+ JMS I [FILN8] /MAKE 8 BIT FORMATTED STRING
+ JMS I [SCRIBE] /TELL THEM
+ FRECMSG /WE ARE RECEIVING
+ PRI8B; NAMBUF /WHICH FILE WE ARE RECEIVING
+ JMS I [SCRIBE] /DO A
+ CRLF /<CR>, <LF>
+ JMP INPS03 /LOOP
+\f/ GOT AN END OF FILE PACKET.
+
+INPS30, TAD OFFLG /ANY OUTPUT FILE OPEN?
+ SNA CLA /SKIP IF YES
+ JMS INPERROR /ERROR /025 CJL
+IER30, JMS I [FILCLOSE] /CLOSE THE FILE /020/039 CJL
+ JMS INPERROR /ERROR CLOSING THE FILE /025 CJL
+IER31,/ DCA OFFLG /RE-SET FILE OPEN FLAG /D009/039 CJL
+ JMP INPS03 /CONTINUE
+
+/ GOT AN END OF TRANSMISSION PACKET.
+
+INPS40, TAD OFFLG /WAS A FILE OPEN?
+ SZA CLA /SKIP IF NO
+ JMS I [FILCLOSE] /CLOSE ANY OPEN FILE /020 CJL
+ NOP /ERROR CLOSING THE FILE **** FIX THIS ****
+ FPACK /FORMAT A PACKET
+ NODATA /NO DATA IN PACKET
+ STACK /"ACK" PACKET TYPE
+
+ SPACK /SEND THE PACKET
+ 0 /NO RESPONSE
+ ISZ INPSRV /BUMP RETURN FOR NO ERROR
+ JMP I INPSRV /TAKE NON-ERROR EXIT
+
+/ GOT AN ERROR PACKET.
+
+INPS50, JMS I [PRIPAK] /PRINT THE PACKET DATA
+ JMP I INPSRV /AND TAKE THE ERROR EXIT /009/014 CJL
+
+/ INPUT ERRORS COME HERE. /025 CJL
+
+INPERRO,.-. /INPUT ERROR ROUTINE /025 CJL
+ FPACK /FORMAT A PACKET /025 CJL
+ NODATA /NO DATA /025 CJL
+ STBRK /"BREAK LINK" PACKET TYPE /025 CJL
+ SPACK /SEND THE PACKET /025 CJL
+ 0 /NO RESPONSE /025 CJL
+ TAD INPERROR /GET CALLER /025 CJL
+ JMS I [SRCHTABLE] /TRY TO FIND A MATCH /025 CJL
+ INERTABLE-1-1 /IN ERROR TABLE /025 CJL
+ SNA /SKIP IF FOUND PARTICULAR MESSAGE /025 CJL
+ TAD (RERRMSG) /ELSE USE GENERAL MESSAGE /025 CJL
+ JMP I INPSRV /TAKE ERROR RETURN /025 CJL
+
+/ TEMPS FOR "INPSRV".
+
+INPS80, 0
+INPS81, 0
+\f PAGE /014 CJL
+\f/ DISPATCH TABLES FOR "INPSRV".
+
+INPS90, STDAT; INPS10 /HANDLE DATA PACKETS
+ STEOF; INPS30 /HANDLE EOF PACKET
+ STEOT; INPS40 /HANDLE END OF TRANSMISSION PACKET
+ STFIL; INPS20 /HANDLE FILE NAME PACKET
+ STERR; INPS50 /HANDLE ERROR PACKET
+ 0 /TERMINATE TABLE
+
+INPS91, STNAK; INPS02 /HANDLE A NAK PACKET
+ STFIL; INPS20 /HANDLE FILE NAME PACKET
+ STERR; INPS50 /HANDLE ERROR PACKET
+ 0 /TERMINATE TABLE
+
+/ INPUT ERROR MESSAGE DISPATCH TABLE. /025/039 CJL
+
+INERTAB,-IER05; UPERMSG /UNDEFINED PACKET ERROR /025 CJL
+ -IER11; DSFLMSG /DISK OVERFLOW ERROR /042 CJL
+ -IER22; RIDEMSG /DIRECTORY FULL ERROR /025 CJL
+ -IER23; RFLNMSG /RECEIVED FILE NAME ERROR /025 CJL
+ -IER24; RHFEMSG /HANDLER FETCH ERROR /025 CJL
+ -IER31; FCLEMSG /FILE CLOSE ERROR /025 CJL
+ 0 /THIS ENDS THE LIST /025 CJL
+\f/ ROUTINE TO CHECK FOR AN ALPHABETIC OR NUMERIC CHAR.
+/ ENTER WITH THE CHAR IN THE AC.
+/ EXIT + 2 IF ALPHABETIC OR NUMERIC WITH CHAR IN THE AC.
+/ EXIT + 1 IF NON-ALPHABETIC OR NUMERIC WITH CHAR IN THE AC.
+
+ALPNUM, 0
+ JMS ALPHA /CHECK FOR ALPHA FIRST
+ SKP /NON-ALPHA RETURN, MUST CHECK NUMERIC
+ JMP ALPNM1 /IS ALPHA, TAKE RETURN + 2
+ JMS NUMRC /CHECK IF NUMERIC
+ SKP /NOT NUMERIC
+ALPNM1, ISZ ALPNUM /BUMP RETURN FOR ALPHA-NUMERIC
+ JMP I ALPNUM /DONE
+
+
+/ ROUTINE TO CHECK FOR AN ALPHABETIC CHARACTER.
+/ ROUTINE ASSUMES UPPER CASE.
+/ ENTER ROUTINE WITH CHAR IN THE AC.
+/ EXIT + 2 IF THE CHAR IS ALPHABETIC WITH THE CHAR IN THE AC.
+/ EXIT + 1 IF THE CHAR IS NOT ALPHABETIC WITH THE CHAR IN THE AC.
+
+ALPHA, 0
+ DCA ALPHA1 /STORE THE CHAR FOR RETURN
+ TAD ALPHA1 /GET THE CHAR
+ TAD (-"Z!200-1) /ADD ON UPPER LIMIT /034 CJL
+ CLL /INIT LINK FOR A FLAG
+ TAD ("Z-"A+1
+ SZL /SKIP IF NOT A LETTER
+ ISZ ALPHA /IS A LETTER, BUMP RETURN
+ CLA CLL /CLEAR AC
+ TAD ALPHA1 /RESTORE CHAR IN THE AC
+ JMP I ALPHA /TAKE PROPER RETURN
+
+ALPHA1, 0 /TEMP FOR ALPHA ROUTINE
+
+/ ROUTINE TO CHECK FOR A NUMERIC CHARACTER.
+/ ENTER WITH THE CHAR TO CHECK IN THE AC.
+/ EXIT + 2 IF NUMERIC WITH THE CHAR IN THE AC.
+/ EXIT + 1 IF NON-NUMERIC WITH THE CHAR IN THE AC.
+
+NUMRC, 0
+ DCA NUMRC1 /SAVE THE CHAR FOR RETURN
+ TAD NUMRC1 /GET THE CHAR BACK
+ TAD (-"9!200-1) /ADD ON UPPER LIMIT /034 CJL
+ CLL /INIT LINK FOR A FLAG
+ TAD ["9-"0+1] /016 CJL
+ SZL /SKIP IF NOT A DIGIT
+ ISZ NUMRC /BUMP RETURN FOR NUMERIC
+ CLA CLL /CLEAR AC
+ TAD NUMRC1 /RESTORE CHAR IN THE AC
+ JMP I NUMRC /DONE
+
+NUMRC1, 0 /TEMP FOR NUMRC CHECK ROUTINE
+\f/ ROUTINE TO WRITE THE CURRENT INPUT PACKET TO THE OUTPUT FILE.
+/ ENTER: NOTHING.
+/ EXIT: + 2 = WRITE SUCCESSFUL.
+/ + 1 = WRITE NOT SUCCESSFUL.
+
+WRIPAK, 0
+ TAD I [RRLEN] /GET LENGTH OF PACKET
+ TAD (RRDTA-40-3 /CALCULATE END OF BUFFER
+ DCA W90 /PUT INTO POINTER
+ DCA I W90 /ZERO AFTER END OF BUFFER
+ TAD (RRDTA /GET ADDRESS OF DATA
+ DCA W90 /PUT INTO POINTER
+
+W10, TAD I W90 /GET A CHAR FROM PACKET
+ SNA /SKIP IF NOT END
+ JMP W60 /END, EXIT
+ CIA /NEGATE FOR COMPARE
+ TAD RQCTL /COMPARE WITH CURRENT QUOTE CHAR
+ SNA CLA /SKIP IF NOT QUOTE CHAR
+ JMP W20 /IS QUOTE, HANDLE SPECIAL
+ TAD W92 /WAS LAST CHAR A QUOTE?
+ SZA CLA /SKIP IF NO
+ TAD (-100 /IT WAS, FIX UP THIS CHAR
+ JMP W25 /HANDLE REST BELOW
+
+W20, TAD W92 /CURRENT CHAR A QUOTE, CHECK PREVIOUS
+ SNA CLA /SKIP IF YES
+ JMP W30 /JUST THIS CHAR IS QUOTE, SET FLAG
+
+W25, TAD I W90 /GET CHAR FROM BUFFER
+ JMS I [PUTBYTE] /OUTPUT TO FILE /020 CJL
+ JMP I WRIPAK /ERROR IN OUTPUT /M020 CJL
+ JMP W35 /FINISH BELOW
+
+W30, NL0001 CLL /GOTA SET FLAG FOR QUOTE CHARACTER /032 CJL
+
+W35, DCA W92 /SET UP QUOTE FLAG
+ ISZ W90 /BUMP POINTER
+ JMP W10 /LOOP
+
+W60, ISZ WRIPAK /BUMP RETURN FOR OK
+ JMP I WRIPAK /DONE
+
+W90, 0 /POINTER FOR "WRIPAK"
+W92, 0 /TEMP FOR "WRIPAK"
+\f/ TABLE SEARCH ROUTINE. /025 CJL
+
+/ CALLING SEQUENCE:
+
+/ TAD VALUE /AC CONTAINS VALUE TO MATCH
+/ JMS I [SRCHTABLE] /CALL ROUTINE
+/ TABLE-2 /ADDRESS(TABLE)-2
+/ RETURN /ALWAYS RETURNS HERE
+
+/ IF AC=0 THEN NO MATCH OCCURRED.
+
+/ IF AC IS NON-ZERO, THEN AC CONTAINS CORRESPONDING VALUE TO MATCH WHICH IS ALSO
+/ STORED IN TABLEJUMP.
+
+/ TABLE FORMAT.
+
+/ -VALUE; CORRESPONDING VALUE /TABLE PAIR
+/ ""; "" /ADDITIONAL PAIRS AS NECESSARY
+/ 0 /ZERO TERMINATES THE TABLE
+
+SRCHTAB,.-. /TABLE SEARCH ROUTINE
+ DCA TABLEJUMP /SAVE PASSED VALUE TO MATCH
+ TAD I SRCHTABLE /GET PASSED POINTER ARGUMENT
+ DCA XR0 /STASH THE POINTER
+ ISZ SRCHTABLE /BUMP PAST ARGUMENT
+SRCHLUP,ISZ XR0 /BUMP TO NEXT PAIR
+ TAD I XR0 /GET A TABLE VALUE
+ SNA /END OF TABLE?
+ JMP I SRCHTABLE /YES, RETURN WITH CLEAR AC
+ TAD TABLEJUMP /COMPARE TO DESIRED
+ SZA CLA /SKIP IF IT MATCHES
+ JMP SRCHLUP /JUMP IF NOT
+ TAD I XR0 /GET CORRESPONDING VALUE
+ DCA TABLEJUMP /STASH IT
+ TAD TABLEJUMP /GET IT BACK
+ JMP I SRCHTABLE /RETURN WITH CORRESPONDING VAUE IN AC
+
+ PAGE /014 CJL
+\f IFZERO 1 <
+
+/ OS8 DIRECTORY FILE DATA SETUP.
+/ ENTER WITH THE DIRECTORY DATE WORD IN THE AC.
+/ EXIT WITH THE DATE IN THE BUFFER "DATBUF".
+
+FILD8, 0
+ DCA FILD89 /SAVE THE DATE WORD
+ TAD FILD89 /GET DATA WORD
+ AND (7 /KEEP ONLY YEAR BITS
+ TAD (116 /ADD 78 YEARS
+ MQL /PUT INTO MQ REGISTER
+ TAD (DATEYR /GET POINTER TO YEAR
+ JMS DECCON /CONVERT TO ASCII DATE
+ TAD FILD89 /GET DATE WORD BACK
+ CLL RTR /SHIFT DAY DOWN
+ RAR
+ AND (37 /KEEP ONLY DAY BITS
+ MQL /PUT IN MQ REGISTER
+ TAD (DATEDA /GET POINTER TO DAY
+ JMS DECCON /CONVERT TO ASCII DAY
+ TAD FILD89 /GET DATE WORD BACK
+ BSW /GET MONTH
+ CLL RTR /DOWN
+ AND (17 /KEEP ONLY MONTH BITS
+ MQL /INTO MQ REGISTER
+ TAD (DATEMO /GET ADDRESS OF WHERE TO PUT MONTH
+ JMS DECCON /CONVERT
+ JMP I FILD8 /ALL DONE
+
+FILD89, 0 /TEMP FOR "FILD8"
+
+
+/ ROUTINE TO CONVERT A BINARY VALUE INTO A TWO DIGIT ASCII DECIMAL NUMBER.
+/ ENTER WITH WHERE TO STORE THE CONVERTED NUMBER IN THE AC AND THE NUMBER IN THE
+/ MQ REGISTER.
+
+DECCON, 0
+ DCA DECC20 /STORE THE POINTER
+ TAD ("0&177-1 /GET AN ASCII ZERO
+ DCA I DECC20 /START OUT WITH A ZERO
+ MQA /GET THE BINARY VALUE
+DECC01, ISZ I DECC20 /BUMP
+ TAD (-12 /SUB 10
+ SMA /SKIP IF NO MORE DIVISION
+ JMP DECC01 /ELSE KEEP GOING
+ TAD (12+"0&177 /CONVERT REMAINDER TO ASCII
+ ISZ DECC20 /BUMP POINTER
+ DCA I DECC20 /STORE
+/ JMS FMTDAT /FORMAT FOR PRINTING /D013
+ JMP I DECCON /DONE
+
+ >
+\f IFZERO 1 <
+
+DECC20, 0 /LOCAL POINTER TO DECCON
+
+/ ROUTINE TO SET UP THE DATE IN A MM-DD-YY FORMAT TO PUT IN FRONT OF A FILE TO
+/ PASS THE FILES DATE (TEMPORY AND NOT PART OF THE KERMIT PROTOCOL).
+
+FMTDAT, 0
+ TAD DATEMO /GET FIRST CHAR OF DATE
+ DCA FDATE /MOVE IT
+ TAD DATEMO+1
+ DCA FDATE+1
+ TAD DATEDA
+ DCA FDATE+3
+ TAD DATEDA+1
+ DCA FDATE+4
+ TAD DATEYR
+ DCA FDATE+6
+ TAD DATEYR+1
+ DCA FDATE+7
+ JMP I FMTDAT /QUICK AND DIRTY
+
+DATBUF, "#&177 /FILE CREATION DATE ATTRIBUTE
+ 6+40 /LENGTH OF DATE (CHAR(X))
+DATEYR, 0 /ASCII YEAR GOES HERE
+ 0
+DATEMO, 0 /ASCII MONTH GOES HERE
+ 0
+DATEDA, 0 /ASCII DAY GOES HERE
+ 0
+ -1 /TERMINATE
+
+/ FORMATTED DATE GOES HERE.
+
+SETDAT,"ANGLEBRACKET&177 /COMMENT SIGN
+
+FDATE, 0
+ 0
+ "-&177
+ 0
+ 0
+ "-&177
+ 0
+ 0
+ 12
+ 15
+ -1
+
+ >
+\f/ DIRECTORY LOOKUP ROUTINE. /028 CJL
+
+/ CALLING SEQUENCE:
+
+/ NL0001 /IF INITIALIZING THE DIRECTORY
+
+/ OR
+
+/ CLA /CLEAR AC IF SUBSEQUENT CALL
+
+/ JMS I (LUKUP) /CALL ROUTINE
+/ I/O ERROR /DIRECTORY I/O ERROR RETURN WITH AC DIRTY
+/ NOT FOUND /FILE NOT FOUND RETURN
+/ FOUND /LATEST FILE MATCHES REQUEST
+
+/ SETS FLEN TO -(FILE LENGTH) IN RECORDS.
+
+/ SETS FSBLK TO STARTING RECORD OF FILE.
+
+/ MODIFIES DIRECTORY SEGMENT SLIGHTLY (NOT TO BE WRITTEN BACK).
+
+/ DEPENDS ON DIRXR BEING UNTOUCHED BY OTHER ROUTINES.
+
+LUKUP, .-. /DIRECTORY LOOKUP ROUTINE
+ SNA /INITIALIZING DIRECTORY?
+ JMP NXTFILE /NO, JUST GET ANOTHER FILE IF POSSIBLE
+NEXTSEG,DCA DIRRECORD /STORE LATEST DIRECTORY SEGMENT RECORD
+ JMS I HNDADR /CALL I/O HANDLER
+ PAGCNT^100+DIRFLD /READ IN A DIRECTORY SEGMENT
+ DIRBUFFER /DIRECTORY I/O BUFFER
+DIRRECO,.-. /WILL BE LATEST SEGMENT NUMBER
+ JMP I LUKUP /I/O ERROR, TAKE DIRTY IMMEDIATE RETURN
+ CDF DIRFLD /GOTO DIRECTORY FIELD
+ TAD I (FRSTRECORD) /GET FIRST RECORD OF FIRST ENTRY
+ DCA FSBLK /STASH IT
+ TAD (ENTSTRT-1) /POINT TO
+ DCA DIRXR /ENTRIES
+LOOKLUP,TAD I DIRXR /GET FIRST WORD OF ENTRY
+ SNA /SKIP IF NOT EMPTY
+ JMP EMPENTRY /JUMP IF EMPTY ENTRY
+ DCA FNAME /STORE FIRST FILENAME WORD
+ TAD I DIRXR /GET NEXT
+ DCA FNAME+1 /STORE SECOND FILENAME WORD
+ TAD I DIRXR /GET NEXT
+ DCA FNAME+2 /STORE THIRD FILENAME WORD
+ TAD I DIRXR /GET NEXT
+ DCA FNAME+3 /STORE EXTENSION WORD
+ NL7777 /BACKUP
+ TAD I (AIWNUMBER) /GET ADDITIONAL INFORMATION WORD COUNT
+ DCA AIWCNT /STASH THE COUNTER
+DCADATW,DCA DATWORD /CLEAR THE DATE WORD
+ TAD DCADATW/(DCA DATWORD)/GET STORING INSTRUCTION
+ DCA AIWSTORE /STORE IN-LINE
+ JMP AIWTEST /START LOOP THERE
+\fAIWLUP, TAD I DIRXR /GET A WORD FROM ENTRY
+AIWSTOR,DCA DATWORD+.-. /STORE IN PROPER WORD
+ ISZ AIWSTORE /BUMP TO NEXT INSTRUCTION
+AIWTEST,ISZ AIWCNT /DONE ALL ADDITIONAL INFORMATION WORDS?
+ JMP AIWLUP /NO, KEEP GOING
+ TAD I DIRXR /GET THE FILE LENGTH
+ SNA /SKIP IF VALID
+ JMP TENTRY /JUMP IF ONLY TENTATIVE FILE (NO LENGTH)
+ DCA FILENGTH /STORE FILE LENGTH
+ CDF PRGFLD /BACK TO OUR FIELD
+/ JMS I (FILTER) /CHECK IF WE LIKE THIS ONE
+ TAD (FNAME) /POINT TO LATEST FILENAME
+ JMS I (FMATCH) /CHECK FOR A MATCH
+ JMP NXTFILE /FORGET THIS ONE, IT DIDN'T MATCH
+ TAD FILENGTH /GET FILE LENGTH
+ DCA FLEN /GIVE TO CALLER TO DESTROY
+ TAD (FNAME) /POINT TO FILENAME
+ JMS I [FILN8] /PUT IN CHARACTER FORM IN BUFFER
+ ISZ LUKUP /BUMP TO FILE MATCH RETURN
+ JMP FLEXIT /EXIT THERE
+
+/ COMES HERE FROM SUBSEQUENT CALL OR MATCH FAILURE.
+
+NXTFILE,CDF DIRFLD /GOTO BUFFER FIELD
+ TAD FILENGTH /GET LATEST FILE LENGTH
+ SKP /DON'T DO EMPTY LENGTH
+
+/ COMES HERE TO BYPASS AN EMPTY ENTRY.
+
+EMPENTR,TAD I DIRXR /GET LENGTH OF EMPTY
+ CIA /WANT POSITIVE FORM
+ TAD FSBLK /UPDATE TO NEXT FILE RECORD
+ DCA FSBLK /STORE UPDATED VALUE
+TENTRY, ISZ I (FILECNT) /DONE WITH THIS SEGMENT?
+ JMP LOOKLUP /NO, KEEP GOING
+ TAD I (DIRLINK) /GET LINK TO NEXT SEGMENT
+ CDF PRGFLD /BACK TO OUR FIELD
+ SZA /END OF DIRECTORY?
+ JMP NEXTSEGMENT /NO, GO DO NEXT SEGMENT
+FLEXIT, ISZ LUKUP /BUMP PAST I/O ERROR EXIT
+ JMP I LUKUP /RETURN FOR FILE NOT FOUND
+
+AIWCNT, .-. /ADDITIONAL INFORMATION WORD COUNTER
+DATWORD,.-. /DATE WORD STORED HERE (0000 IF NONE)
+ ZBLOCK 7 /ROOM FOR MORE ADDITIONAL INFORMATION WORDS
+FILENGT,.-. /LATEST FILE LENGTH
+FNAME, ZBLOCK 4 /FILENAME AND EXTENSION STORED HERE
+
+ PAGE
+\f/ OS/8 FILE UNPACK ROUTINE. /019 CJL
+
+/ THIS ROUTINE UNPACKS BYTES FROM THE INPUT FILE ACCORDING TO THE CURRENT VALUE
+/ OF FILMODE:
+
+/ FILMODE CONTAINS 0177 (ASCII MODE). ALL BYTES ARE TREATED AS SEVEN-BIT ASCII
+/ CHARACTERS BY STRIPPING THE HIGH-ORDER BIT. END OF FILE IS THE <^Z> CHARACTER
+/ WHICH WILL BE SENT OR NOT ACCORDING TO THE CONTENTS OF OCTLZFLAG. IF
+/ OCTLZFLAG CONTAINS NON-ZERO, THEN <^Z> WILL BE SENT AT <EOF>; THE NEXT CALL
+/ WILL YIELD THE <EOF> RETURN. IF OCTLZFLAG CONTAINS ZERO, THEN DETECTION OF
+/ <^Z> YIELDS THE <EOF> RETURN IMMEDIATELY.
+
+/ FILMODE CONTAINS 4377 (BINARY MODE). ALL BYTES ARE TREATED AS EIGHT-BIT
+/ CHARACTERS AND WILL BE SENT WITHOUT <^Z> CHECK. THE NEXT CALL AFTER THE LAST
+/ BYTE OF THE LAST RECORD HAS BEEN SENT YIELDS THE <EOF> RETURN.
+
+/ CALLING CONSIDERATIONS:
+
+/ OCTLZFLAG MUST BE SETUP ACCORDINGLY IF IN ASCII MODE.
+
+/ FILMODE MUST BE SETUP ACCORDINGLY.
+
+/ FLEN MUST CONTAIN -(FILE LENGTH IN RECORDS) WHEN INITIALIZING THE INPUT FILE.
+/ IT WILL BE MODIFIED BY CALLING THIS ROUTINE.
+
+/ FSBLK MUST CONTAIN THE THE STARTING RECORD WHEN INITIALIZING THE INPUT FILE.
+
+/ HNDADR MUST ALREADY BE SETUP TO CALL THE INPUT HANDLER.
+
+/ CALLING SEQUENCE:
+
+/ CLA /OR NL7777 IF INITIALIZING THE INPUT FILE
+/ JMS I (GETBYTE) /CALL ROUTINE
+/ I/O ERROR RETURN /FATAL INPUT ERROR OCCURRED; AC CONTAINS JUNK
+/ END OF FILE /<EOF> OCCURRED
+/ GOOD RETURN /AC CONTAINS LATEST SEVEN/EIGHT-BIT CHARACTER
+
+GETBYTE,.-. /GET A BYTE ROUTINE
+ SNA CLA /INITIALIZING?
+ JMP I PUTC /NO, GO GET NEXT BYTE
+ TAD FSBLK /GET STARTING RECORD OF INPUT FILE
+ DCA GETRECORD /STORE IN-LINE
+GETNEWR,JMS I HNDADR /CALL I/O HANDLER
+ PAGCNT^100+BUFFLD /READ SOME PAGES INTO BUFFER FIELD
+GETCORE,FILBUFFER /BUFFER ADDRESS
+GETRECO,.-. /WILL BE LATEST RECORD NUMBER
+ JMP I GETBYTE /INPUT ERROR!
+ TAD GETCORE/(FILBUFFER) /SETUP THE
+ DCA BUFPTR /BUFFER POINTER
+\fGETLOOP,DCA THIRD /CLEAR THIRD BYTE NOW
+ JMS PUTONE /OBTAIN AND SEND BACK FIRST BYTE
+ JMS PUTONE /OBTAIN AND SEND BACK SECOND BYTE
+ TAD THIRD /GET THIRD BYTE
+ JMS PUTC /SEND IT BACK
+ TAD BUFPTR /GET THE POINTER
+ TAD (-PAGCNT^200-FILBUFFER) /COMPARE TO LIMIT
+ SZA CLA /SKIP IF AT END
+ JMP GETLOOP /KEEP GOING
+ ISZ GETRECORD /BUMP TO NEXT RECORD
+ ISZ FLEN /DONE ALL RECORDS? (BINARY MODE ONLY)
+ JMP GETNEWRECORD /NO, GO DO ANOTHER ONE
+
+/ BINARY <EOF> REACHED HERE.
+
+ JMP GETEOF /TAKE SKIP RETURN TO MAIN CALLER
+
+PUTONE, .-. /SEND BACK A BYTE ROUTINE
+ CDF BUFFLD /GOTO BUFFER FIELD
+ TAD I BUFPTR /GET LATEST WORD
+ AND [7400] /JUST THIRD-BYTE NYBBLE
+ CLL RAL /MOVE UP
+ TAD THIRD /GET OLD NYBBLE (IF ANY)
+ RTL;RTL /MOVE UP NYBBLE BITS
+ DCA THIRD /SAVE FOR NEXT TIME
+ TAD I BUFPTR /GET LATEST WORD AGAIN
+ JMS PUTC /SEND BACK CURRENT BYTE
+ ISZ BUFPTR /BUMP TO NEXT WORD
+ JMP I PUTONE /RETURN
+
+PUTC, .-. /SEND BACK LATEST BYTE ROUTINE
+ CDF PRGFLD /BACK TO OUR FIELD
+ RAL /MOVE UP
+ STL RAR /MOVE DOWN WITH BIT[0] SET
+ AND FILMODE /KEEP ONLY GOOD BITS
+ TAD [-CNTRLZ] /COMPARE TO <^Z>
+ SNA /SKIP IF NOT ASCII MODE <EOF>
+ JMP GETEND /JUMP IF ASCII MODE <EOF>
+GETUPZ, TAD [CNTRLZ] /RESTORE THE CHARACTER
+ AND [377] /ENSURE EIGHT-BIT (MIGHT ALREADY BE SEVEN-BIT)
+ ISZ GETBYTE /BUMP PAST <EOF> RETURN
+GETEOF, ISZ GETBYTE /BUMP PAST I/O ERROR RETURN
+ JMP I GETBYTE /RETURN TO MAIN CALLER
+
+/ GOT <Z> IN ASCII MODE.
+
+GETEND, TAD OCTLZFLAG /GET <^Z> DISPOSITION FLAG
+ SNA CLA /SKIP IF SET
+ JMP GETEOF /JUST RETURN <EOF> CONDITION
+ TAD (GETEOF) /POINT TO <EOF>
+ DCA PUTC /FOR NEXT TIME
+ JMP GETUPZ /GIVE THEM BACK <^Z> THIS TIME
+\f/ OS/8 FILE PACK ROUTINE. /020 CJL
+
+/ THIS ROUTINE PACKS BYTES INTO THE OUTPUT FILE ACCORDING TO THE CURRENT VALUE
+/ OF FILMODE:
+
+/ FILMODE CONTAINS 0177 (ASCII MODE). ALL BYTES ARE TREATED AS SEVEN-BIT ASCII
+/ CHARACTERS BY STRIPPING THE HIGH-ORDER BIT.
+
+/ FILMODE CONTAINS 4377 (BINARY MODE). ALL BYTES ARE TREATED AS EIGHT-BIT
+/ CHARACTERS AND WILL BE WRITTEN AS IS.
+
+/ CALLING CONSIDERATIONS:
+
+/ FILMODE MUST BE SETUP ACCORDINGLY.
+
+/ FLEN MUST CONTAIN -(MAXIMUM FILE LENGTH IN RECORDS) WHEN INITIALIZING THE
+/ TENTATIVE OUTPUT FILE. IT WILL BE MODIFIED BY CALLING THIS ROUTINE.
+
+/ FSBLK MUST CONTAIN THE STARTING RECORD WHEN INITIALIZING THE TENTATIVE OUTPUT
+/ FILE.
+
+/ HNDADR MUST ALREADY BE SETUP TO CALL THE OUTPUT HANDLER.
+
+/ CALLING SEQUENCE:
+
+/ NL7777 /ANY NEGATIVE VALUE
+/ JMS I [PUTBYTE] /CALL ROUTINE TO INITIALIZE
+/ IMPOSSIBLE /CAN'T RETURN HERE
+/ GOOD RETURN /ALWAYS RETURNS HERE
+
+/ OR
+
+/ TAD (CHAR&377) /ANY EIGHT-BIT (OR LESS) VALUE
+/ JMS I [PUTBYTE] /CALL ROUTINE TO PACK A CHARACTER
+/ ERROR RETURN /I/O ERROR WHILE WRITING A BUFFER
+/ GOOD RETURN /CHARACTER PACKED WITH NO ERRORS
+
+/ ALL RETURNS CLEAR THE AC.
+
+PUTBYTE,.-. /OUTPUT A BYTE ROUTINE
+ SPA /ARE WE INITIALIZING?
+ JMP PUTINITIALIZE /YES
+ AND FILMODE /REDUCE TO SEVEN-BIT/EIGHT-BIT
+ DCA LATEST /SAVE LATEST CHARACTER
+ CDF BUFFLD /GOTO BUFFER FIELD
+ TAD LATEST /GET LATEST CHARACTER
+ JMP I PUTNEXT /GO WHERE YOU SHOULD GO
+
+PUTNEXT,.-. /EXIT ROUTINE
+ ISZ PUTBYTE /BUMP TO GOOD RETURN
+PUTERRO,CLA CLL /CLEAN UP
+ CDF PRGFLD /BACK TO OUR FIELD
+ JMP I PUTBYTE /RETURN TO MAIN CALLER
+\fPUTINIT,CLA /CLEAN UP
+ TAD FSBLK /GET STARTING RECORD OF TENTATIVE FILE
+ DCA PUTRECORD /STORE IN-LINE
+ DCA I (FLENGTH) /CLEAR ACTUAL FILE LENGTH
+PUTNEWR,TAD PUTCORE/(FILEBUFFER) /SETUP THE
+ DCA BUFPTR /BUFFER POINTER
+PUTLOOP,JMS PUTNEXT /GET A CHARACTER
+ DCA I BUFPTR /STORE IT
+ TAD BUFPTR /GET POINTER VALUE
+ DCA TEMPTR /SAVE FOR LATER
+ ISZ BUFPTR /BUMP TO NEXT
+ JMS PUTNEXT /GET A CHARACTER
+ DCA I BUFPTR /STORE IT
+ JMS PUTNEXT /GET A CHARACTER
+ RTL;RTL /MOVE UP
+ AND [7400] /ISOLATE HIGH NYBBLE
+ TAD I TEMPTR /ADD ON FIRST BYTE
+ DCA I TEMPTR /STORE COMPOSITE
+ TAD LATEST /GET LATEST CHARACTER
+ RTR;RTR;RAR /MOVE UP AND
+ AND [7400] /ISOLATE LOW NYBBLE
+ TAD I BUFPTR /ADD ON SECOND BYTE
+ DCA I BUFPTR /STORE COMPOSITE
+ ISZ BUFPTR /BUMP TO NEXT
+ TAD BUFPTR /GET LATEST POINTER VALUE
+ TAD (-PAGCNT^200-FILBUFFER) /COMPARE TO LIMIT
+ SZA CLA /SKIP IF AT END
+ JMP PUTLOOP /KEEP GOING
+ CDF PRGFLD /BACK TO OUR FIELD
+ ISZ FLEN /TOO MANY RECORDS?
+ SKP /SKIP IF NOT
+ JMP I PUTBYTE /TAKE ERROR RETURN
+ JMS I HNDADR /CALL I/O HANDLER
+ PAGCNT^100+BUFFLD+WRITE /WRITE SOME PAGES FROM BUFFER FIELD
+PUTCORE,FILBUFFER /BUFFER ADDRESS
+PUTRECO,.-. /WILL BE LATEST RECORD NUMBER
+ JMP PUTERROR /OUTPUT ERROR!
+ ISZ I (FLENGTH) /BUMP ACTUAL LENGTH
+ ISZ PUTRECORD /BUMP TO NEXT RECORD
+ JMP PUTNEWRECORD /KEEP GOING
+
+BUFPTR, .-. /INPUT/OUTPUT BUFFER POINTER
+
+/ ASCII FILE MODE <^Z> OUTPUT DISPOSITION FLAG.
+
+OCTLZFL,OCLOSE /ZERO=DON'T SEND <^Z> AT <EOF>,
+ /NON-ZERO=SEND <^Z> AT <EOF>
+
+ THIRD= PUTNEXT /THIRD BYTE TEMPORARY
+
+ TEMPTR= PUTONE /TEMPORARY BUFFER POINTER
+\f PAGE
+\f/ OUTPUT FILE CLOSE ROUTINE /020 CJL
+
+/ THIS ROUTINE CLOSES THE OPEN OUTPUT FILE ACCORDING TO THE CURRENT VALUE OF
+/ FILMODE:
+
+/ FILMODE CONTAINS 0177 (ASCII MODE). ALL BYTES PRIOR TO CLOSE ARE STRIPPED
+/ SEVEN-BIT CHARACTERS. IF THE LAST CHARACTER SENT TO PUTBYTE (CONTENTS OF
+/ LATEST) IS A <^Z>, THEN JUST CLOSE THE FILE. IF NOT, THEN IF ICTLZFLAG IS
+/ NON-ZERO, INSERT A <^Z> CHARACTER INTO THE FILE AS <EOF> INDICATOR, ELSE JUST
+/ CLOSE THE FILE.
+
+/ FILMODE CONTAINS 4377 (BINARY MODE). ALL BYTES PRIOR TO CLOSE ARE EIGHT-BIT
+/ CHARACTERS. IF NECESSARY, <NUL> CHARACTERS WILL BE APPENDED TO THE END OF THE
+/ LAST BLOCK OF THE FILE TO FILL IT. THE FILE IS CLOSED OTHERWISE UNMODIFIED.
+
+/ CALLING CONSIDERATIONS.
+
+/ OFFLG MUST BE SET (OUTPUT FILE IS OPEN).
+
+/ FLENGTH MUST CONTAIN THE ACTUAL FILE LENGTH.
+
+/ LATEST MUST CONTAIN THE LAST BYTE SENT TO THE OUTPUT FILE VIA PUTBYTE (ASCII
+/ MODE ONLY).
+
+/ ICTLZFLAG MUST BE SETUP ACCORDINGLY.
+
+/ FILMODE MUST BE SETUP ACCORDINGLY.
+
+/ CALLING SEQUENCE:
+
+/ CLA CLL /CLEAR AC
+/ JMS I (FILCLOSE) /CALL ROUTINE
+/ ERROR RETURN /ERROR WHILE CLOSING FILE
+/ GOOD RETURN /FILE CLOSED PROPERLY
+
+/ ON RETURN, OFFLG WILL BE CLEAR; THE AC WILL BE CLEAR ALSO.
+
+FILCLOS,.-. /OUTPUT FILE CLOSE ROUTINE
+ TAD FILMODE /GET CURRENT FILE MODE
+ SPA CLA /SKIP IF ASCII
+ JMP CLOSIT /JUMP IF BINARY
+ TAD LATEST /GET LATEST CHARACTER
+ TAD [-CNTRLZ] /COMPARE TO <^Z>
+ SZA CLA /SKIP IF <^Z> ALREADY IN FILE
+ TAD ICTLZFLAG /GET <^Z> DISPOSITION FLAG
+ SNA CLA /SKIP IF SET
+ JMP CLOSIT /JUMP IF NOT
+ TAD [CNTRLZ] /GET A <^Z>
+\fCLOSLUP,JMS I [PUTBYTE] /OUTPUT A BYTE
+ JMP CLOSERROR /ERROR WHILE WRITING
+CLOSIT, TAD I (BUFPTR) /GET THE BUFFER POINTER
+ TAD (-FILBUFFER) /COMPARE TO RESET VALUE
+ SZA CLA /SKIP IF IT MATCHES
+ JMP CLOSLUP /ELSE KEEP GOING
+ TAD ODNUMBER /GET OUTPUT DEVICE NUMBER
+ CIF USRFLD /GOTO USR FIELD
+ JMS I [USRENTRY] /CALL USER SERVICE ROUTINE /035 CJL
+ CLOSE /CLOSE FILE
+ FNBLK /=> FILENAME
+FLENGTH,.-. /ACTUAL FILE LENGTH
+CLOSERR,SKP CLA /ERROR WHILE CLOSING THE FILE
+ ISZ FILCLOSE /BUMP RETURN IF NO ERRORS
+ DCA OFFLG /CLEAR OUTPUT FILE OPEN FLAG
+ JMP I FILCLOSE /RETURN TO CALLER
+
+/ ASCII FILE MODE <^Z> INPUT DISPOSITION FLAG.
+
+ICTLZFL,ICLOSE /ZERO=DON'T ENSURE <^Z> IN FILE, NON-ZERO=PACK <^Z>
+ /IF LAST CHARACTER WASN'T <^Z>
+\f/ SEND PROCESSING
+
+SNDPRO, 0
+ TAD INIFLG /CHECK IF SEND/INIT HAS BEEN DONE
+ SZA CLA /SKIP IF NO
+ JMP SNDP10 /RIGHT INTO FILE TRANSFER
+ TAD (DEFCK /SET UP DEFAULT CHECKSUM
+ DCA RCHKT
+ TAD (DEFEOL /GET DEFAULT EOL
+ DCA REOL /AND SET IT
+ TAD (DEFQCTL /GET DEFAULT QUOTE CONTROL CHAR
+ DCA RQCTL /AND SET IT UP
+ TAD (DEFMAXL+40 /GET DEFAULT MAX BUFFER SIZE
+ DCA RMAXL /SET IT UP
+ DCA CURSEQ /RE-SET SEQUENCE NUMBER
+ JMS I (SNDI00) /HANDLE "SEND-INIT"
+ JMP I SNDPRO /TAKE ERROR RETURN /014 CJL
+
+/ SEND FILE HEADER DISPATCH ROUTINE
+
+SNDP10, FPACK /FORMAT A PACKET
+ NAMBUF /ADDRESS OF FILE HEADER FOR DATA
+ STFIL /"FIL" PACKET TYPE
+
+SNDP11, SPACK /SEND A PACKET
+ 1 /AWAIT RESPONSE
+ SNDP96-2 /DISPATCH TABLE ADDRESS /026 CJL
+
+/ GOT A NAK OR UNDEFINED HERE
+
+SNDP12, ISZ RTRYC /BUMP THE COUNTER
+ JMP SNDP11 /TRY AGAIN
+ JMP I SNDPRO /TAKE ERROR RETURN /014 CJL
+
+/ FILE CREATION DATE HANDLING
+
+SNDP15, IFZERO 1 <
+
+ TAD RCAPAS /CHECK IF REMOTE SUPPORTS FILE
+ AND (10 / ATTRIBUTES
+ SNA CLA /SKIP IF YES
+ JMP SNDP20 /SKIP IF NO
+ FPACK /FORMAT PACKET
+ DATBUF /DATE DATA
+ STATT /"ATT" PACKET TYPE
+
+SNDP16, SPACK /SEND THE PACKET
+ 1 /AWAIT RESPONSE
+ SNDP98-2 /DISPATCH TABLE ADDRESS /027 CJL
+ JMP I SNDPRO /TAKE ERROR RETURN /014 CJL
+
+ >
+\f/ GOT ACK HERE
+
+SNDP20, JMS I [SCRIBE] /TELL THEM /025 CJL
+ FSENMSG /WE ARE SENDING /025 CJL
+ PRI8B; NAMBUF /TELL THEM THE NAME OF THE FILE
+ JMS I [SCRIBE] /DO A /025 CJL
+ CRLF /<CR>, <LF> /025 CJL
+ JMS SLOOP
+ SKP /ERROR RETURN
+ ISZ SNDPRO /BUMP FOR NON-ERROR EXIT
+ JMP I SNDPRO
+\f/ DATA SEND LOOP.
+/ ROUTINE TO GET CHARS FROM THE INPUT BUFFER AND SEND THEM TO REMOTE
+/ VIA PACKET TRANSFERS. RETURN + 1 IF ERROR, + 2 IF DONE.
+
+SLOOP, 0
+ JMS I (INIOPB) /INIT OUTPUT PACKET HOLD BUFFER
+ NL7777 /INITIALIZE INPUT FILE ROUTINE /019 CJL
+SLOP01, JMS I (GETBYTE) /GET A FILE CHARACTER /019 CJL
+ JMP I SLOOP /FATAL I/O ERROR /026 CJL
+ JMP SLOP15 /HERE ON EOF
+ JMS I (OPBUF) /PUT INTO PACKET BUFFER
+ SKP /RETURN HERE ON BUFFER FULL
+ JMP SLOP01 /RETURN HERE IF STILL ROOM
+
+/ PACKET IS FULL HERE, WE MUST SEND IT.
+
+ FPACK /FORMAT A PACKET
+ HOLDBF /DATA ADDRESS
+ STDAT /"DAT" PACKET TYPE
+
+SLOP05, SPACK /SEND PACKET
+ 1 /AWAIT RESPONSE
+ SLOP90-2 /RESPONSE TABLE ADDRESS /027 CJL
+
+/ HERE ON NAK OR FALL THRU ON UNDEFINED RESPONSE ABOVE.
+
+SLOP10, ISZ RTRYC /BUMP THE RE-TRY COUNTER
+ JMP SLOP05 /TRY AGAIN
+ JMP I SLOOP /TAKE ERROR RETURN /026 CJL
+
+/ HERE ON END OF FILE -- SEND THEM WHAT WE HAVE.
+
+SLOP15, TAD I (OP2) /GET THE POINTER /052 CJL
+ TAD (-HOLDBF) /COMPARE TO EMPTY VALUE /052 CJL
+ SNA CLA /SKIP IF NOT EMPTY /052 CJL
+ JMP SLOP35 /JUMP IF EMPTY /052 CJL
+ FPACK /FORMAT A PACKET
+ HOLDBF /ADDRESS OF DATA
+ STDAT /"DAT" PACKET TYPE
+
+SLOP20, SPACK /SEND A PACKET
+ 1 /AWAIT RESPONSE
+ SLOP92-2 /DISPATCH TABLE ADDRESS /027 CJL
+
+/ NAK FOR LAST PACKET.
+
+SLOP25, ISZ RTRYC /BUMP RE-TRY COUNTER
+ JMP SLOP20 /TRY AGAIN
+ JMP I SLOOP /TAKE ERROR RETURN /026 CJL
+\f/ ACK FOR FINAL PACKET, SEND AN EOF PACKET.
+
+SLOP35, JMS I [SNDP] /SEND A PACKET
+ NODATA /NO DATA
+ STEOF /MAKE IT AN EOF PACKET
+ JMP I SLOOP /NAK, TAKE ERROR RETURN
+ JMP I SLOOP /OTHER THAN ACK, NAK; TAKE ERROR RETURN /026 CJL
+ ISZ SLOOP /EOF ACCEPTED, BUMP FOR GOOD RETURN
+ JMP I SLOOP /TAKE GOOD RETURN
+
+ PAGE
+\fSLOP90, STACK; SLOP01 /ACK, CONTINUE
+ STNAK; SLOP10 /NAK, HANDLE
+ 0
+
+SLOP92, STACK; SLOP35 /ACK, CONTINUE
+ STNAK; SLOP25 /NAK, HANDLE
+ 0
+
+/ COMMAND DISPATCH TABLE FOR SEND SERVICE.
+
+SNDP96, STACK; SNDP15 /FILE HEADER ACKNOWLEDGED
+ STNAK; SNDP12 /NAK RETURNED, RE-TRY
+ 0 /END OF TABLE
+
+SNDP98, STACK; SNDP20 /DATE ATTRIBUTE ACKNOWLEDGED
+ 0 /END OF TABLE
+\f/ ROUTINE TO HANDLE A "SEND-INIT" COMMAND.
+/ RETURN + 1 IF ERROR.
+/ RETURN + 2 IF SUCCESSFUL.
+
+SNDI00, 0
+ FPACK /FORMAT A PACKET
+ INIDAT /ADDRESS OF DATA FOR PACKET
+ STSIN /"SIN" PACKET TYPE
+
+SNDI02, SPACK /SEND A PACKET
+ 1 /AWAIT RESPONSE
+ SNDI80-2 /RESPONSE TABLE TYPE /027 CJL
+
+/ HERE ON NAK OR UNDEFINED.
+
+SNDI05, ISZ RTRYC /BUMP RE-TRY COUNTER
+ JMP SNDI02 /TRY AGAIN
+ JMP I SNDI00 /TAKE ERROR EXIT
+
+/ HERE ON ACK.
+
+SNDI10, JMS SETINI /SET UP THE INIT REGISTERS
+ NL0001 CLL /NOW FLAG THE SEND/INIT DONE /032 CJL
+ DCA INIFLG /BY MAKING THIS NON-ZERO
+ ISZ SNDI00 /BUMP FOR NON-ERROR RETURN
+ JMP I SNDI00 /BACK TO MAIN SEND PROCESSING
+
+SNDI80, STACK; SNDI10 /GOT AN ACK
+ STNAK; SNDI05 /NAK
+ 0 /END OF TABLE
+
+
+/ ROUTINE TO MOVE THE SEND/INIT OR RECEIVE/INIT PACKET INTO THE INIT REGISTERS.
+
+SETINI, 0
+ TAD (RMAXL /GET ADDRESS OF RECEIVE INIT REGISTERS
+ DCA MQ /SETUP FOR CLEAR ROUTINE /032 CJL
+ TAD (RMAXL-INITEND) /GET -(NUMBER OF REGISTERS) /022 CJL
+ CLEAR /CLEAR OUT A CHUNK OF MEMORY /M013
+/ TAD (RMAXL /GET ADDRESS OF RECEIVE INIT REGISTERS
+/ DCA MQ /SETUP FOR MOVE ROUTINE /032 CJL
+ TAD I [RRLEN] /GET LENGTH OF PACKET JUST INPUT
+ TAD (-40-4 /COUNT OF DATA RECEIVED
+ TAD (RMAXL-INITEND) /COMPARE TO MAXIMUM ALLOWED /022 CJL
+ SMA SZA /SKIP IF NOT TOO MANY /022 CJL
+ CLA /ELSE USE ALLOWED MAXIMUM /022 CJL
+ TAD (INITEND-RMAXL) /RESTORE VALUE /022 CJL
+ CIA /MAKE IT NEGATIVE
+ DCA MOVE4 /SAVE FOR "MOVE" ROUTINE
+ TAD (RRDTA /ADDRESS OF DATA IN PACKET
+ MOVE /MOVE THE INIT REGISTERS
+ JMP I SETINI /DONE
+\f IFZERO 1 < /D013
+
+/ ROUTINE TO SEND THE DATE IN A DATA PACKET.
+/ RETURN + 1 IF ERROR, + 2 IF SUCCESSFUL.
+
+DATOUT, 0
+ JMS INIOPB /INSURE PACKET HOLD BUFFER INITIALIZED
+ TAD (SETDAT /GET ADDRESS OF DATE
+ DCA DATOU9 /PUT INTO POINTER
+
+DATOU1, TAD I DATOU9 /GET A CHAR
+ ISZ DATOU9 /BUMP POINTER
+ SPA /SKIP IF NOT ENT
+ JMP DATOU2 /DONE
+ JMS OPBUF /PUT INTO HOLD BUFFER
+ SKP /HOLD FULL, SEND IT
+ JMP DATOU1 /LOOP
+
+DATOU2, CLA CLL /INSURE CLEAR AC
+ FPACK /FORMAT A PACKET
+ HOLDBF /DATA ADDRESS
+ STDAT /DATA PACKET
+
+DATOU3, SPACK /SEND THE PACKET
+ 1 /GET RESPONSE
+ DATOU7-2 /DISPATCH TABLE ADDRESS /027 CJL
+
+/ HERE ON NAK OR UNDEFINED RESPONSE.
+
+DATOU4, ISZ RTRYC /BUMP RE-TRY COUNTER
+ JMP DATOU3 /TRY AGAIN
+ JMP I DATOUT /ABORT
+
+/ HERE ON ACK.
+
+DATOU5, ISZ DATOUT /BUMP FOR GOOD RETURN
+ JMP I DATOUT /EXIT
+
+DATOU7, STACK; DATOU5 /ACK
+ STNAK; DATOU4 /NAK
+ 0
+
+DATOU9, 0 /TEMP POINTER FOR DATOUT
+
+ > /D013
+\f/ HANDLE AN ABORT REQUEST.
+
+ABORT, CLA CLL /INSURE CLEAR AC
+ DCA ABFLAG /CLEAR ABORT FLAG NOW /044 CJL
+ TAD KMODE /GET CURRENT MODE
+ TAD (-MSEND /IS IT A SEND?
+ SZA /SKIP IF YES
+ JMP ABORT2 /NOT SEND
+
+ JMS I [SNDP] /SEND OUT A PACKET
+ ABORT9 /WHICH HAS A "D" IN THE DATA
+ STEOF /AND IS AN EOF PACKET
+ NOP /WE GOT NAK BACK HERE
+ NOP /WE GOT NEITHER NAK OR ACK HERE
+ JMS I (BRKXMT) /BREAK THE SEND
+ JMP ABORT3 /FINISH THE ABORT
+
+ABORT2, TAD (MSEND-MREC /CHECK IF IN RECEIVE MODE
+ SZA CLA /SKIP IF YES
+ JMP ABORT3 /JUST BACK TO COMMAND LOOP
+ JMS I [SNDP] /SEND A PACKET BACK FOR AN ABORT
+
+ IFZERO 1 < /D009
+
+ ABORT8 /WHICH HAS AN "X" IN THE DATA
+ STACK /MAKE IT AN ACK PACKET
+ NOP /NAK HERE
+ NOP /NOT NAK OR ACK HERE
+
+ > /D009
+
+ NODATA /NO DATA /A009
+ STBRK /BREAK TRANSMISSION /A009
+ NOP /NAK HERE /A009
+ CLA /NOT ACK OR NAK HERE /A009
+ TAD OFFLG /GET FILE OPEN FLAG /A009
+ SZA CLA /IS IT OPEN YET? /A009
+ JMS I [FILCLOSE] /CLOSE THE OUTPUT FILE /020 CJL
+ CLA /ERROR DURING CLOSE **** FIX THIS ****
+ABORT3, TAD (ABMSG) /GET MESSAGE ADDRESS /044 CJL
+ JMP I [CLOOP7] /DISPLAY THE ABORT
+
+ABORT9, "D&137 /DATA PACKET FOR SEND ABORT
+ -1
+
+ PAGE /014 CJL
+\f/ ROUTINE TO PRINT 8 BIT CHARS ON THE TTY. ENTER ROUTINE WITH THE ADDRESS OF
+/ THE TEXT IN THE AC OR IF AC IS ZERO THE ADDRESS IS IN THE CALL + 1. TEXT
+/ TERMINATES ON A MINUS WORD.
+
+PRI8B0, 0
+ SZA /SKIP IF ADDRESS NOT IN AC
+ JMP PRI8B1 /ADDRESS IS IN THE AC
+ TAD I PRI8B0 /GET ADDRESS FROM CALL + 1
+ ISZ PRI8B0 /BUMP RETURN POINTER
+PRI8B1, DCA MQ /SAVE ADDRESS OF STRING /032 CJL
+ TAD [P7ECHO] /GET CONSOLE OUTPUT ROUTINE ADDRESS /043 CJL
+ JMS EIGHTB /AND SEND IT
+ JMP I PRI8B0 /ALL DONE
+
+/ ROUTINE TO SEND 8 BIT CHARS DOWN THE REMOTE LINE. ENTER ROUTINE WITH THE
+/ ADDRESS OF THE TEXT IN THE AC OR IF AC IS ZERO THE ADDRESS IS IN THE CALL + 1.
+/ TEXT TERMINATES ON A MINUS WORD.
+
+REM8B0, 0
+ SZA /SKIP IF ADDRESS NOT IN AC
+ JMP REM8B1 /ADDRESS IN AC
+ TAD I REM8B0 /GET ADDRESS FROM CALL + 1
+ ISZ REM8B0 /BUMP RETURN
+
+REM8B1, DCA MQ /SAVE ADDRESS OF STRING /032 CJL
+ TAD (COMOUT) /GET ADDRESS OF REMOTE OUTPUT ROUTINE /046 CJL
+ JMS EIGHTB /AND SEND THE STRING
+ JMP I REM8B0 /DONE
+
+
+/ ROUTINE TO SEND 8 BIT DATA. ENTER WITH ADDRESS OF DATA IN THE MQ AND THE
+/ ADDRESS OF THE ROUTINE TO TAKE EACH BYTE IN THE AC. TEXT TERMINATES ON A
+/ MINUS WORD.
+
+EIGHTB, 0
+ DCA EIGHT5 /STORE POINTER TO ROUTINE
+ TAD MQ /GET STRING POINTER /032 CJL
+ DCA EIGHT6 /STORE IN LOCAL POINTER
+
+EIGHT1, TAD I EIGHT6 /GET A CHAR
+ ISZ EIGHT6 /BUMP THE POINTER
+ SPA /SKIP IF NOT EOL
+ JMP EIGHT2 /GOT EOL
+ JMS I EIGHT5 /CALL OUTPUT ROUTINE
+ CLA CLL /INSURE CLEAR AC
+ JMP EIGHT1 /LOOP
+
+EIGHT2, CLA CLL /CLEAR THE AC
+ JMP I EIGHTB /DONE
+
+EIGHT5, 0 /POINTER TO ROUTINE TO DO OUTPUT
+EIGHT6, 0 /POINTER TO TEXT TO OUTPUT
+\f/ ROUTINE TO UNPACK 6-BT CHARS FROM MEMORY. BEFORE CALLING INIT "GET6P" AS A
+/ POINTER TO THE STRING LOCATION AND "GET6F" SHOULD BE ZEROED TO START WITH THE
+/ TOP BYTE OF THE FIRST MEMORY LOCATION.
+
+GET60, 0
+ NL4000 /SET 4000 /032 CJL
+ TAD GET6F /GET THE FLAG
+ DCA GET6F /RETURN THE FLAG
+ TAD I GET6P /GET TWO BYTES
+ SZL /HIGH-ORDER WANTED? /032 CJL
+ JMP GETSWT /JUMP IF NOT /032 CJL
+ RTR;RTR;RTR /MOVE DOWN HIGH-ORDER HALF /032 CJL
+ SKP /DON'T BUMP POINTER YET /032 CJL
+GETSWT, ISZ GET6P /BUMP TO NEXT WORD /032 CJL
+ AND [77] /STRIP UNUSED BITS /016 CJL
+ JMP I GET60 /DONE
+
+
+/ LOCAL ROUTINE TO "FILN8" TO MAKE THE 6 BIT CHAR IN THE AC INTO 8 BITS AND
+/ STORE IN A STRING.
+
+MOV8, .-. /6-BIT CHARACTER => 7-BIT CHARACTER /028 CJL
+ SNA /SKIP IF SOMETHING PASSED /028 CJL
+ TAD [" &77] /ELSE SUPPLY A <SPACE> /025 CJL
+ TAD [" &77] /INVERT THE CHARACTER /028 CJL
+ AND [77] /JUST SIX-BITS /014/016 CJL
+ TAD [" &77] /MAKE IT SEVEN-BIT ASCII /028 CJL
+ DCA I MOV8P /STORE IN THE STRING /028 CJL
+ ISZ MOV8P /BUMP POINTER FOR NEXT TIME /028 CJL
+ JMP I MOV8 /RETURN /028 CJL
+
+MOV8P, 0 /POINTER FOR "MOV8" ROUTINE
+\f/ ROUTINE TO PULL A FILE NAME IN 6 BIT POINTED TO BY THE AC AND PLACE IN THE
+/ FILE NAME BUFFER IN 8 BIT ADDING IN THE "." TO SEPARATE FILE NAME AND
+/ EXTENSION. A MINUS WORD WILL FOLLOW THE NAME.
+
+FILN8, 0
+ DCA GET6P /SET POINTER FOR "GET6"
+ DCA GET6F /SET FLAG FOR "GET6"
+ TAD (NAMBUF /GET ADDRESS OF THE NAME BUFFER
+ DCA MOV8P /SET IN A POINTER
+ TAD (-6 /6 NAME CHARS TO DO
+ DCA FILN8C /SAVE IN COUNTER
+ GET6 /PULL A CHAR
+ SZA /SKIP IF A SPACE
+ JMS MOV8 /PUT INTO THE BUFFER
+ ISZ FILN8C /BUMP COUNTER
+ JMP .-4 /LOOP TILL ALL 6 DONE
+ TAD (".&177) /GET A "." /034 CJL
+ JMS MOV8 /PUT WITH FILE NAME
+ NL7776 /SET -2 /032 CJL
+ DCA FILN8C /2 EXTENSION CHARS
+ GET6 /GET NEXT CHAR
+ SZA /SKIP IF A SPACE
+ JMS MOV8 /PUT WITH NAME
+ ISZ FILN8C /BUMP COUNTER
+ JMP .-4 /LOOP
+ NL7777 /SET -1 /032 CJL
+ DCA I MOV8P /TERMINATE THE STRING
+ JMP I FILN8 /AND RETURN
+
+FILN8C, 0 /COUNTER FOR "FILN8"
+
+ PAGE
+\f/ CONSOLE I/O ROUTINES, ETC. /023 CJL
+
+/ CONSOLE MESSAGE PRINT ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ JMS I [SCRIBE] /CALL MESSAGE PRINT ROUTINE
+/ MESSAGEADDRESS /MESSAGE ADDRESS PASSED IN-LINE
+
+/ AC CAN BE DIRTY ON CALL.
+
+/ RETURNS WITH CLEAR AC.
+
+/ MESSAGE FORMAT:
+
+/ ALL UPPER-CASE CHARACTERS ARE ALLOWED TO EXIST IN THE MESSAGE EXCEPT '%' AND
+/ '^' WHICH ARE RESERVED. A ZERO HALF-WORD TERMINATES THE MESSAGE STRING. IF
+/ '%' IS DETECTED, A <CR> AND <LF> WILL BE OUTPUT. IF '^' IS DETECTED, THE
+/ PREVAILING CASE WILL BE REVERSED. INITIAL CASE IS LOWER-CASE. IF 'UPONLY' IS
+/ SET TO 7740, ALL CASE CHANGES ARE IGNORED AND THE OUTPUT IS FORCED TO
+/ UPPER-CASE ONLY. THE MESSAGE ADDRESS MUST BE IN FIELD ONE AND MUST NOT
+/ OVERLAP AREAS RESERVED FOR OTHER PURPOSES (OS/8 RESIDENT AT 17600-17777, USR
+/ LOCATIONS 10000-11777, ETC.).
+
+
+SCRIBE, .-. /CONSOLE MESSAGE PRINT ROUTINE
+ CLA /CLEAN UP /029 CJL
+ TAD [P7ECHO] /POINT TO /043 CJL
+RSCRENT,DCA MSGOUT /CONSOLE PRINT ROUTINE
+ TAD I SCRIBE /GET IN-LINE POINTER ARGUMENT
+ DCA SCRPTR /STASH THE POINTER
+ ISZ SCRIBE /BUMP PAST ARGUMENT
+ TAD UPONLY /GET UPPER-ONLY VALUE /030 CJL
+ TAD [140] /ADD ON LOWER-CASE VALUE /030 CJL
+ DCA SCRCASE /STORE INITIAL CASE VALUE
+SCRLUP, CDF MSGFLD /GOTO MESSAGE FIELD
+ TAD I SCRPTR /GET LEFT HALF-WORD
+ RTR;RTR;RTR /MOVE OVER
+ JMS SCRPRNT /PRINT IT
+ CDF MSGFLD /GOTO MESSAGE FIELD
+ TAD I SCRPTR /GET RIGHT HALF-WORD
+ JMS SCRPRNT /PRINT IT
+ ISZ SCRPTR /BUMP TO NEXT PAIR
+ JMP SCRLUP /KEEP GOING
+\fSCRPRNT,.-. /CHARACTER PRINT ROUTINE
+ CDF PRGFLD /BACK TO OUR FIELD
+ AND [77] /JUST SIX BITS
+ SNA /END OF MESSAGE?
+ JMP I SCRIBE /YES, RETURN TO ORIGINAL CALLER
+ DCA SCRCHAR /NO, SAVE FOR NOW
+ TAD SCRCHAR /GET IT BACK
+ TAD (-"%!200) /IS IT "%"?
+ SNA /SKIP IF NOT
+ JMP SCRCRLF /JUMP IF IT MATCHES
+ TAD [-"^+100+"%] /IS IT "^"
+ SNA CLA /SKIP IF NOT
+ JMP SCRFLIP /JUMP IF IT MATCHES
+ TAD SCRCHAR /GET THE CHARACTER
+ AND [40] /DOES CASE MATTER?
+ SNA CLA /SKIP IF NOT
+ TAD SCRCASE /ELSE GET PREVAILING CASE
+ TAD SCRCHAR /GET THE CHARACTER
+SCRPRLF,JMS I MSGOUT /PRINT THE CHARACTER
+ JMP I SCRPRNT /RETURN
+
+SCRCRLF,TAD [CNTRLM] /GET A <CR>
+ JMS I MSGOUT /PRINT IT
+ TAD [CNTRLJ] /GET A <LF>
+ JMP SCRPRLF /CONTINUE THERE
+
+SCRFLIP,TAD UPONLY /GET UPPER-ONLY FLAG
+ SZA CLA /SKIP IF OFF
+ JMP I SCRPRNT /RETURN IF ON
+ TAD SCRCASE /GET CURRENT CASE
+ CIA /INVERT IT
+ TAD (140+100) /ADD SUM OF POSSIBLE VALUES
+ DCA SCRCASE /STORE NEW INVERTED CASE
+ JMP I SCRPRNT /RETURN
+
+/ REMOTE LINE MESSAGE PRINT ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ JMS I [RSCRIBE] /CALL MESSAGE PRINT ROUTINE
+/ MESSAGEADDRESS /MESSAGE ADDRESS PASSED IN-LINE
+
+/ AC CAN BE DIRTY ON CALL.
+
+/ RETURNS WITH CLEAR AC.
+
+/ MESSAGE FORMAT AND RESTRICTIONS ARE IDENTICAL TO SCRIBE ROUTINE.
+
+RSCRIBE,.-. /REMOTE LINE MESSAGE PRINT ROUTINE
+ CLA /CLEAN UP /029 CJL
+ TAD RSCRIBE /GET OUR CALLER
+ DCA SCRIBE /MAKE IT THEIRS
+ TAD (COMOUT) /POINT TO REMOTE OUTPUT ROUTINE
+ JMP RSCRENTRY /CONTINUE THERE
+\f/ ESCAPE CHARACTER PRINT ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ TAD ESCHAR /OR OTHER CHARACTER TO PRINT
+/ JMS I [ESCPRNT] /CALL ROUTINE
+/ RETURNS WITH CLEAR AC HERE
+
+/ CAUSES CHARACTER TO PRINT LITERALLY IF CHARACTER>37.
+/ CAUSES MESSAGE "CONTROL-" FOLLOWED BY CHARACTER+100 IF CHARACTER<40.
+
+ESCPRNT,.-. /ESCAPE CHARACTER PRINT ROUTINE
+ DCA ESCTEMP /SAVE PASSED VALUE
+ TAD ESCTEMP /GET IT BACK
+ TAD [-40] /COMPARE TO CONTROL LIMIT
+ SMA CLA /SKIP IF LESS THAN LIMIT
+ JMP ESPRINT /JUMP IF NOT
+ JMS I [SCRIBE] /GIVE THEM THE
+ CONTMSG /CONTROL MESSAGE
+ TAD [100] /MAKE IT UPPER-CASE, NOT CONTROL
+ESPRINT,TAD ESCTEMP /GET ORIGINAL VALUE
+ JMS I [P7ECHO] /PRINT IT /043 CJL
+ JMP I ESCPRNT /RETURN
+
+ MSGOUT= RSCRIBE /OUTPUT ROUTINE POINTER
+
+ESCTEMP,.-. /TEMPORARY FOR ESCPRNT ROUTINE
+SCRCASE,.-. /CURRENT MESSAGE CASE
+SCRCHAR,.-. /LATEST MESSAGE CHARACTER
+SCRPTR, .-. /MESSAGE POINTER
+
+ PAGE
+\f/ ROUTINE TO HANDLE THE "CONNECT" COMMAND. /025 CJL
+
+CONSRV, .-. /CONNECT SERVICE ROUTINE
+ JMS I [CREST2] /SETUP CONSOLE OUTPUT ROUTINES /025 CJL
+ JMS I [SCRIBE] /GIVE THE
+ CONNMSG /OPENING MESSAGE
+ TAD ESCHAR /GET THE CURRENT <ESCAPE> CHARACTER
+ JMS I [ESCPRNT] /PRINT IT
+ JMS I [SCRIBE] /GIVE THEM THE
+ CON2MSG /BRIDGING MESSAGE
+ JMS I [SCRIBE] /PRINT OUT THE
+ CPUMSG /ACTUAL CPU TYPE
+ JMS I [SCRIBE] /GIVE THEM THE
+ CON3MSG /CLOSING MESSAGE
+CORESET,DCA ESCFLAG /CLEAR <ESCAPE> SEEN FLAG
+ TAD ESCHAR /GET THE <ESCAPE> CHARACTER
+ DCA ESCH /STORE IN SEARCH LIST
+ JMS I (CONRESET) /RESET CONSOLE ROUTINES
+ JMS I (REMRESET) /RESET REMOTE LINE ROUTINES
+CONNLUP,TAD KEYERROR /GET KEYBOARD ERROR FLAG
+ SNA /SKIP IF KEYBOARD ERROR
+ TAD RINERROR /ELSE GET REMOTE ERROR FLAG
+ SZA CLA /SKIP IF NEITHER KEYBOARD NOR REMOTE LINE ERRORS
+ JMP KERROR /JUMP IF KEYBOARD ERROR
+ JMS I (CONTEST) /TEST IF CONSOLE CAN TAKE OUTPUT
+ JMP TESTKEYBOARD /JUMP IF NOT
+ JMS I (REMINPUT) /TEST IF ANY REMOTE INPUT
+ SKP /SKIP IF NONE
+ JMS I (CONOUT) /OUTPUT TO CONSOLE
+TESTKEY,TAD ECHOFLAG /GET LOCAL ECHO FLAG
+ TAD ESCFLAG /ADD ON <ESCAPE> SEEN FLAG
+ SNA CLA /SKIP IF LOCAL ECHO POSSIBLY NEEDED
+ JMP NOLOCALECHO /JUMP IF NOT
+ JMS I (CONTEST) /TEST IF CONSOLE CAN TAKE OUTPUT
+ JMP BUFCHECK /JUMP IF NOT
+NOLOCAL,JMS I (REMTEST) /TEST IF REMOTE CAN TAKE OUTPUT
+ JMP BUFCHECK /JUMP IF NOT
+ JMS I (KEYINPUT) /TEST IF ANY KEYBOARD INPUT
+ JMP BUFCHECK /JUMP IF NOT
+ DCA KEYLATEST /SAVE FOR LATER
+ TAD KEYLATEST /GET IT BACK
+ AND [177] /WANT SEVEN-BIT VERSION FOR TESTS
+ CIA /INVERT IT
+ DCA TESTCHAR /SAVE FOR LATER
+ TAD ESCFLAG /<ESCAPE> SEEN LAST TIME?
+ SNA CLA /SKIP IF SO
+ JMP NOESCAPE /JUMP IF NOT
+ TAD TESTCHAR /GET TEST VAUE
+ JMS I [SRCHTABLE] /SEARCH FOR IT
+ ESCLIST-1-1 /SEARCH TABLE POINTER
+ SNA CLA /SKIP IF FOUND
+ JMP ESCOMPLAIN /JUMP IF NOT
+ JMP I TABLEJUMP /GO WHERE YOU'RE SUPPOSED TO
+\f/ COMES HERE IF PREVIOUS WAS NOT THE <ESCAPE> CHARACTER.
+
+NOESCAP,TAD TESTCHAR /GET THE LATEST CHARACTER
+ TAD ESCHAR /COMPARE TO <ESCAPE> CHARACTER
+ SZA CLA /SKIP IF IT MATCHES
+ JMP OUTCHAR /JUMP IF NOT
+ NL7777 /SET THE
+/ DCA ESCFLAG /<ESCAPE> SEEN FLAG
+/ JMP BUFCHECK /CONTINUE THERE
+ JMP NOESENTRY /CONTINUE THERE
+
+/ COMES HERE IF BOTH PREVIOUS AND LATEST ARE THE <ESCAPE> CHARACTER.
+
+ESCTYPE,DCA ESCFLAG /CLEAR THE <ESCAPE> SEEN FLAG AND OUTPUT
+
+/ COMES HERE IF PREVIOUS AND LATEST CHARACTER ARE NOT THE <ESCAPE> CHARACTER.
+
+OUTCHAR,TAD ECHOFLAG /GET LOCAL ECHO FLAG
+ SNA CLA /SKIP IF SET
+ JMP NOECHO /JUMP IF NOT
+ TAD KEYLATEST /GET LATEST CHARACTER
+ JMS I (CONOUT) /OUTPUT TO CONSOLE
+NOECHO, TAD KEYLATEST /GET LATEST CHARACTER
+ JMS I (REMOUT) /OUTPUT TO REMOTE
+ JMP BUFCHECK /CONTINUE THERE
+
+/ COMES HERE IF PREVIOUS WAS THE <ESCAPE> CHARACTER AND THE LATEST IS NOT
+/ A VALID <ESCAPE> COMMAND CHARACTER.
+
+ESCOMPL,TAD [CNTRLG] /GET A <BEL>
+ JMS I (CONOUT) /OUTPUT TO CONSOLE
+NOESENT,DCA ESCFLAG /CLEAR <ESCAPE> SEEN FLAG
+BUFCHEC,JMS I PUPSTATUS /UPDATE THE PORT STATUS /047 CJL
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE USE ONLY. THE DEFAULT INSTRUCTION IS FOR
+/ KL8 INTERFACES.
+
+ *BUFCHECK /OVERLAY DECMATE CODE /047 CJL
+
+BUFCHEC,NOP /DON'T CHECK PORT STATUS /047 CJL
+
+ JMS I (RINUPDATE) /CHECK FOR MORE REMOTE INPUT
+ JMS I (KEYUPDATE) /CHECK FOR MORE KEYBOARD INPUT
+ JMS I (REMUPDATE) /CHECK FOR MORE REMOTE OUTPUT
+ JMS I (CONUPDATE) /CHECK FOR MORE CONSOLE OUTPUT
+ JMP CONNLUP /GO BACK FOR MORE
+
+/ COMES HERE ON <ESCAPE> C(LOSE).
+
+ESCLOSE,ISZ CONSRV /BUMP TO GOOD RETURN
+ JMP I CONSRV /RETURN
+\fKERRLUP,JMS I PUPSTATUS /UPDATE THE PORT STATUS /047 CJL
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE USE ONLY. THE DEFAULT INSTRUCTION IS FOR
+/ KL8 INTERFACES.
+
+ *KERRLUP /OVERLAY DECMATE CODE /047 CJL
+
+KERRLUP,NOP /DON'T CHECK PORT STATUS /047 CJL
+
+ JMS I (RINUPDATE) /CHECK FOR MORE REMOTE INPUT
+ JMS I (KEYUPDATE) /CHECK FOR MORE KEYBOARD INPUT
+ JMS I (REMUPDATE) /CHECK FOR MORE REMOTE OUTPUT
+ JMS I (CONUPDATE) /CHECK FOR MORE CONSOLE OUTPUT
+
+/ COMES HERE ON KEYBOARD INPUT ERROR.
+
+KERROR, JMS I (CONTEST) /CONSOLE READY FOR OUTPUT?
+ JMP KERRLUP /NO, GO WAIT AWHILE
+ TAD I (CONINSERT) /GET CONSOLE INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD I (CONREMOVE) /COMPARE TO CONSOLE REMOVAL POINTER
+ SZA CLA /SKIP IF CONSOLE OUTPUT BUFFER EMPTY
+ JMP KERRLUP /GO WAIT FOR AWHILE
+ TAD KEYERROR /KEYBOARD INPUT ERROR?
+ SNA CLA /SKIP IF SO
+ JMP RIERTST /JUMP IF NOT
+ JMS I [SCRIBE] /TELL THEM
+ KERRMSG /WE HAD A KEYBOARD ERROR
+RIERTST,TAD RINERROR /REMOTE INPUT ERROR?
+ SNA CLA /SKIP IF SO
+ JMP CORESET /JUMP IF NOT
+ JMS I [SCRIBE] /TELL THEM
+ RIERMSG /WE HAD A REMOTE LINE ERROR
+ JMP CORESET /RESTART
+
+/ <ESCAPE> CHARACTER SEARCH LIST.
+
+ESCLIST,UPPERC; ESCLOSE /<ESCAPE> C(LOSE)
+ LOWERC; ESCLOSE /<ESCAPE> C(LOSE) (LOWER-CASE)
+ESCH, .-.; ESCTYPE /<ESCAPE> <ESCAPE>
+ 0 /THIS ENDS THE LIST
+
+/ LOCAL ECHO FLAG FOR CONNECT MODE.
+
+ECHOFLA,INIECHO /0=DON'T ECHO, NON-ZERO=ECHO /039 CJL
+ESCFLAG,.-. /<ESCAPE> CHARACTER SEEN FLAG
+KEYLATE,.-. /LATEST KEYBOARD CHARACTER
+PUPSTAT,UPSTATUS /POINTER TO DECMATE STATUS UPDATE /047 CJL
+TESTCHA,.-. /LATEST KEYBOARD TEST CHARACTER
+\f PAGE
+\f/ CONNECT-MODE SUPPORT ROUTINES. /047 CJL
+
+/ CONSOLE KEYBOARD ROUTINES. /047 CJL
+
+/ KEYBOARD INPUT ROUTINE. /026 CJL
+
+/ CALLING SEQUENCE:
+
+/ JMS I (KEYINPUT) /CALL ROUTINE
+/ NO INPUT /RETURN IF NO INPUT
+/ INPUT /RETURN IF INPUT AVAILABLE
+
+/ THE AC WILL BE CLEAR IF THE IMMEDIATE RETURN IS TAKEN FOR NO INPUT.
+
+/ THE AC WILL CONTAIN THE LATEST CHARACTER IF THE SKIP RETURN IS TAKEN.
+
+KEYINPU,.-. /KEYBOARD INPUT ROUTINE
+ TAD KEYINSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD KEYREMOVE /COMPARE TO REMOVAL POINTER
+ SNA CLA /SKIP IF BUFFER NOT EMPTY
+ JMP KEYCHECK /JUMP IF BUFFER EMPTY
+ TAD KEYREMOVE /GET REMOVAL POINTER
+ DCA KEYTEMP /SAVE FOR LATER
+ NL0001 /SET INCREMENT
+ TAD KEYREMOVE /UPDATE REMOVAL POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ TAD [KEYBUFFER] /MAKE IT ABSOLUTE
+ DCA KEYREMOVE /STORE UPDATED POINTER
+ CDF BUFFLD /GOTO BUFFER FIELD
+ TAD I KEYTEMP /GET THE LATEST CHARACTER
+ CDF PRGFLD /BACK TO OUR FIELD
+ SKP /DON'T GET ANOTHER CHARACTER /047 CJL
+
+/ COMES HERE IF BUFFER IS EMPTY.
+
+KEYCHEC,JMS KEYGET /TRY TO GET A CHARACTER NOW /047 CJL
+ ISZ KEYINPUT /GOT ONE, SO TAKE SKIP RETURN /047 CJL
+ JMP I KEYINPUT /RETURN EITHER WAY
+\f/ KEYBOARD BUFFER UPDATE ROUTINE. /026 CJL
+
+/ CALLING SEQUENCE:
+
+/ JMS I (KEYUPDATE) /CALL ROUTINE
+
+/ RETURNS WITH CLEAR AC. ANY KEYBOARD INPUT WHICH JUST OCCURRED WILL BE
+/ BUFFERED; CALLS TO KEYINPUT WILL RETRIEVE THE CHARACTERS.
+
+KEYUPDA,.-. /KEYBOARD BUFFER UPDATE ROUTINE
+ JMS KEYGET /TRY TO GET A CHARACTER NOW /047 CJL
+ SKP /GOT ONE, DON'T LEAVE YET /047 CJL
+ JMP I KEYUPDATE /CHARACTER NOT AVAILABLE NOW, RETURN /047 CJL
+ CDF BUFFLD /GOTO BUFFER FIELD
+ DCA I KEYINSERT /STORE IN THE BUFFER
+ CDF PRGFLD /BACK TO OUR FIELD
+ NL0001 /SET INCREMENT
+ TAD KEYINSERT /UPDATE POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ TAD [KEYBUFFER] /MAKE IT ABSOLUTE
+ DCA KEYINSERT /STORE BACK UPDATED POINTER
+ TAD KEYINSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD KEYREMOVE /COMPARE TO REMOVAL POINTER
+ SNA CLA /SKIP IF NOT EQUAL
+KSERROR,ISZ KEYERROR /INDICATE KEYBOARD ERROR
+ JMP I KEYUPDATE /RETURN
+ JMP KSERROR /MAKE SURE ERROR IS INDICATED
+\f/ KEYBOARD GET A CHARACTER ROUTINE. /047 CJL
+
+/ CALLING SEQUENCE:
+
+/ JMS KEYGET /CALL ROUTINE
+/ CHARACTER AVAILABLE /RETURNS HERE WITH LATEST CHARACTER
+/ NO CHARACTER AVAILABLE /RETURNS HERE IF NO CHARACTER OR HANDLED FLOW-CONTROL
+
+/ NORMAL RETURN HAS LATEST CHARACTER IN AC.
+
+/ SKIP RETURN HAS CLEAR AC.
+
+/ IF FLOWFLAG=0, FLOW CHARACTERS ARE UNPROCESSED AND CAUSE NORMAL RETURN.
+
+KEYGET, .-. /KEYBOARD GET A CHARACTER ROUTINE
+KGTEST, KSFIOT /FLAG UP?
+ JMP KEYGNONE /NO, TAKE SKIP RETURN
+KGREAD, KRBIOT /YES, READ THE CHARACTER
+ SPA /SKIP IF NO UART ERRORS
+ ISZ KEYERROR /INDICATE KEYBOARD ERROR
+ SKP /SKIP IF NOT TOO MANY ERRORS
+ JMP .-2 /ENSURE KEYBOARD ERROR IS INDICATED
+ AND [377] /JUST EIGHT-BIT
+ DCA KEYTEMP /SAVE FOR NOW
+ TAD FLOWFLAG /GET FLOW CONTROL FLAG
+ SNA CLA /SKIP IF SET
+ JMP KEYGEXIT /JUMP IF NOT
+ TAD KEYTEMP /GET THE CHARACTER
+ AND [177] /JUST SEVEN-BIT
+ TAD [-CNTRLS] /COMPARE TO <^S>
+ SNA /SKIP IF OTHER
+ JMP KWATSET /JUMP IF IT MATCHES
+ TAD [-CNTRLQ+CNTRLS]/COMPARE TO <^S>
+ SNA CLA /SKIP IF OTHER
+ JMP KWATCLEAR /JUMP IF IT MATCHES
+KEYGEXI,TAD KEYTEMP /GET THE CHARACTER
+ JMP I KEYGET /TAKE IMMEDIATE RETURN
+
+/ COMES HERE ON <^S> TO SET OUTPUT WAIT.
+
+KWATSET,NL4000 /SET WAIT VALUE
+
+/ COMES HERE ON <^Q> TO CLEAR OUTPUT WAIT.
+
+KWATCLE,DCA CONWAIT /STORE NEW STATE
+KEYGNON,ISZ KEYGET /BUMP RETURN ADDRESS
+ JMP I KEYGET /TAKE SKIP RETURN
+\f/ CONSOLE TERMINAL ROUTINES.
+
+/ CONSOLE OUTPUT ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ TAD CHAR /CHARACTER TO OUTPUT IN AC
+/ JMS I (CONOUT) /CALL ROUTINE
+/ RETURN /RETURNS HERE WITH CLEAR AC
+
+CONOUT, .-. /CONSOLE OUTPUT ROUTINE
+ DCA CONTEMP /SAVE PASSED VALUE
+ TAD CONINSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD CONREMOVE /COMPARE TO REMOVAL POINTER
+ TAD CONWAIT /ADD ON WAIT STATUS
+ SZA CLA /SKIP IF BUFFER EMPTY AND NOT WAITING /047 CJL
+ JMP CSTUFF /JUMP IF CHARACTER MUST BE BUFFERED
+ TAD CONTEMP /GET PASSED VALUE /047 CJL
+ JMS I (CONPUT) /TRY TO OUTPUT THE CHARACTER NOW /047 CJL
+ JMP CSTUFF /COULDN'T OUTPUT IT, SO BUFFER IT /047 CJL
+ JMP I CONOUT /RETURN
+
+CSTUFF, TAD CONTEMP /GET THE CHARACTER
+ CDF BUFFLD /GOTO BUFFER FIELD
+ DCA I CONINSERT /STORE THE CHARACTER
+ CDF PRGFLD /BACK TO OUR FIELD
+ NL0001 /SET INCREMENT
+ TAD CONINSERT /UPDATE POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ TAD [CONBUFFER] /MAKE IT ABSOLUTE
+ DCA CONINSERT /STORE BACK UPDATED POINTER
+ JMP I CONOUT /RETURN
+
+/ CONSOLE OUTPUT TEST ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ JMS I (CONTEST) /CALL ROUTINE
+/ NOT READY /RETURN IF OUTPUT NOT READY FOR NEXT CHARACTER
+/ READY /OUTPUT CAN ACCEPT ANOTHER CHARACTER NOW
+
+CONTEST,.-. /CONSOLE OUTPUT TEST ROUTINE
+ NL0001 /SET BUFFER INCREMENT
+ TAD CONINSERT /GET UPDATED INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD CONREMOVE /COMPARE TO REMOVAL POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ SZA CLA /SKIP IF BUFFER IS FULL
+ ISZ CONTEST /BUMP RETURN IF NOT
+ JMP I CONTEST /RETURN EITHER WAY
+\f/ CONSOLE OUTPUT BUFFER UPDATE ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ JMS I (CONUPDATE) /CALL ROUTINE
+/ RETURN /RETURN WITH CLEAR AC
+
+/ THE CONSOLE OUTPUT BUFFERING ROUTINES WILL UPDATE POINTERS, ETC. IF ANY
+/ STATUS HAS CHANGED SINCE THE LAST CALL.
+
+CONUPDA,.-. /CONSOLE OUTPUT UPDATE ROUTINE
+ TAD CONWAIT /FLOW CONTROL WAIT SET?
+ SZA CLA /SKIP IF NOT
+ JMP I CONUPDATE /JUST RETURN IF SO
+ TAD CONINSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD CONREMOVE /COMPARE TO REMOVAL POINTER
+ SNA CLA /SKIP IF BUFFER CONTAINS SOMETHING /047 CJL
+ JMP I CONUPDATE /RETURN IF BUFFER EMPTY /047 CJL
+ CDF BUFFLD /GOTO BUFFER FIELD
+ TAD I CONREMOVE /GET A CHARACTER FROM THE BUFFER
+ CDF PRGFLD /BACK TO OUR FIELD
+ JMS I (CONPUT) /TRY TO OUTPUT THE CHARACTER NOW /047 CJL
+ JMP I CONUPDATE /COULDN'T DO IT, SO JUST RETURN /047 CJL
+ NL0001 /SET BUFFER INCREMENT
+ TAD CONREMOVE /UPDATE REMOVAL POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ TAD [CONBUFFER] /MAKE IT ABSOLUTE
+ DCA CONREMOVE /STORE UPDATED POINTER
+ JMP I CONUPDATE /RETURN
+
+CONINSE,.-. /CONSOLE OUTPUT INSERTION POINTER
+CONREMO,.-. /CONSOLE OUTPUT REMOVAL POINTER
+
+/ CONSOLE FLOW CONTROL WAIT FLAG.
+
+CONWAIT,.-. /0=DON'T WAIT, 4000=WAIT FOR <^Q>
+KEYINSE,.-. /KEYBOARD BUFFER INSERTION POINTER
+KEYREMO,.-. /KEYBOARD BUFFER REMOVAL POINTER
+
+ CONTEMP=CONUPDATE /CONSOLE OUTPUT TEMPORARY
+
+ KEYTEMP=CONUPDATE /KEYBOARD INPUT TEMPORARY
+
+ PAGE
+\f/ REMOTE LINE ROUTINES.
+
+/ REMOTE LINE INPUT ROUTINE. /026 CJL
+
+/ CALLING SEQUENCE:
+
+/ JMS I (REMINPUT) /CALL ROUTINE
+/ NO INPUT /RETURN IF NO INPUT
+/ INPUT /RETURN IF INPUT AVAILABLE
+
+/ THE AC WILL BE CLEAR IF THE IMMEDIATE RETURN IS TAKEN FOR NO INPUT.
+
+/ THE AC WILL CONTAIN THE LATEST CHARACTER IF THE SKIP RETURN IS TAKEN.
+
+REMINPU,.-. /REMOTE LINE INPUT ROUTINE
+ TAD RININSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD RINREMOVE /COMPARE TO REMOVAL POINTER
+ SNA CLA /SKIP IF BUFFER NOT EMPTY
+ JMP RINCHECK /JUMP IF BUFFER EMPTY
+ TAD RINREMOVE /GET REMOVAL POINTER
+ DCA RINTEMP /SAVE FOR LATER
+ NL0001 /SET INCREMENT
+ TAD RINREMOVE /UPDATE REMOVAL POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ TAD (RINBUFFER) /MAKE IT ABSOLUTE
+ DCA RINREMOVE /STORE UPDATED POINTER
+ CDF BUFFLD /GOTO BUFFER FIELD
+ TAD I RINTEMP /GET THE LATEST CHARACTER
+ CDF PRGFLD /BACK TO OUR FIELD
+ DCA RINTEMP /SAVE FOR LATER
+ TAD FLOWFLAG /GET FLOW CONTROL FLAG
+ SNA CLA /SKIP IF SET
+ JMP REMINEXIT /JUMP IF NOT
+ NL4000 /SET WAITING VALUE
+ TAD RINWAIT /ARE WE WAITING TO EMPTY?
+ SZA CLA /SKIP IF SO
+ JMP REMINEXIT /JUMP IF NOT
+ TAD RININSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD RINREMOVE /COMPARE TO REMOVAL POINTER
+ AND [BUFSIZE^3%4] /JUST 3/4 BITS
+ SZA CLA /SKIP IF BUFFER NOW 1/4 FULL (OR LESS)
+ JMP REMINEXIT /JUMP IF NOT
+ NL7777 /SET BUFFER EMPTYING VALUE
+ DCA RINWAIT /STORE FOR OUTPUT ROUTINE
+REMINEX,TAD RINTEMP /GET THE CHARACTER
+ SKP /DON'T GET ANOTHER ONE /047 CJL
+
+/ COMES HERE IF REMOTE LINE INPUT BUFFER IS EMPTY.
+
+RINCHEC,JMS RINGET /TRY TO GET A CHARACTER NOW /047 CJL
+ ISZ REMINPUT /GOT ONE, SO TAKE SKIP RETURN /047 CJL
+ JMP I REMINPUT /RETURN EITHER WAY
+\f/ REMOTE LINE INPUT BUFFER UPDATE ROUTINE. /026 CJL
+
+/ CALLING SEQUENCE:
+
+/ JMS I (RINUPDATE) /CALL ROUTINE
+
+/ RETURNS WITH CLEAR AC. ANY REMOTE LINE INPUT WHICH JUST OCCURRED WILL BE
+/ BUFFERED; CALLS TO REMINPUT WILL RETRIEVE THE CHARACTERS.
+
+RINUPDA,.-. /REMOTE LINE INPUT BUFFER UPDATE ROUTINE
+ JMS RINGET /TRY TO GET A CHARACTER NOW /047 CJL
+ SKP /GOT ONE, DON'T LEAVE YET /047 CJL
+ JMP I RINUPDATE /CHARACTER NOT AVAILABLE NOW, RETURN /047 CJL
+ CDF BUFFLD /GOTO BUFFER FIELD
+ DCA I RININSERT /STORE IN THE BUFFER
+ CDF PRGFLD /BACK TO OUR FIELD
+ NL0001 /SET INCREMENT
+ TAD RININSERT /UPDATE POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ TAD (RINBUFFER) /MAKE IT ABSOLUTE
+ DCA RININSERT /STORE BACK UPDATED POINTER
+ TAD RININSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD RINREMOVE /COMPARE TO REMOVAL POINTER
+ SNA /SKIP IF BUFFER NOT FULL
+ ISZ RINERROR /INDICATE REMOTE LINE INPUT ERROR
+ SKP /SKIP IF NO OVERFLOW
+ JMP .-2 /ENSURE ERROR IS SET
+ TAD [BUFSIZE^3%4] /SUBTRACT 1/4 BUFFER'S WORTH
+ AND [BUFSIZE^3%4] /JUST 3/4 BUFFER BITS
+ SNA CLA /SKIP IF NOT 3/4 FULL
+ TAD FLOWFLAG /ELSE CHECK IF FLOW CONTROL IS ENABLED
+ SNA CLA /SKIP IF 3/4 FULL AND FLOW CONTROL IS ENABLED
+ JMP I RINUPDATE /JUST RETURN
+ TAD RINWAIT /GET INPUT WAIT FLAG
+ SNA CLA /SKIP IF ALREADY SET
+ ISZ RINWAIT /SET TO <^S> STATE
+ JMP I RINUPDATE /RETURN
+\f/ REMOTE LINE GET A CHARACTER ROUTINE. /047 CJL
+
+/ CALLING SEQUENCE:
+
+/ JMS I (RINGET) /CALL ROUTINE
+/ CHARACTER AVAILABLE /RETURNS HERE WITH LATEST CHARACTER
+/ NO CHARACTER AVAILABLE /RETURNS HERE IF NO CHARACTER OR HANDLED FLOW-CONTROL
+
+/ NORMAL RETURN HAS LATEST CHARACTER IN AC.
+
+/ SKIP RETURN HAS CLEAR AC.
+
+/ IF FLOWFLAG=0, FLOW CHARACTERS ARE UNPROCESSED AND CAUSE NORMAL RETURN.
+
+RINGET, .-. /REMOTE LINE GET A CHARACTER ROUTINE
+RINTEST,TAD INFLAG /IS INPUT AVAILABLE?
+RINGT0, SNA CLA /SKIP IF SO
+RINREAD,JMP RINGNONE /JUMP IF NOT
+RINGT1, DCA INFLAG /CLEAR AVAILABILITY FLAG
+RINGT2, IRB /READ IN THE CHARACTER
+
+/ THE ABOVE INSTRUCTIONS ARE FOR DECMATE II USE ONLY. THE DEFAULT INSTRUCTIONS
+/ ARE FOR KL8 INTERFACES.
+
+ *RINTEST /OVERLAY DECMATE II CODE
+
+RINTEST,RKSFIOT /FLAG UP?
+RINGT0, JMP RINGNONE /NO, TAKE SKIP RETURN
+RINREAD,RKRBIOT /YES, READ THE CHARACTER
+RINGT1, SKP /NO ERRORS ON DECMATE I
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE I USE ONLY. THE DEFAULT INSTRUCTION IS
+/ FOR KL8 INTERFACES.
+
+ *RINGT1 /OVERLAY DECMATE I CODE
+
+RINGT1, SPA /SKIP IF NO UART ERRORS
+RING2, ISZ RINERROR /INDICATE REMOTE LINE INPUT ERROR
+ SKP /SKIP IF NOT TOO MANY ERRORS
+ JMP .-2 /ENSURE REMOTE LINE INPUT ERROR IS INDICATED
+ AND [377] /JUST EIGHT-BIT
+ DCA RINTEMP /SAVE FOR NOW
+ TAD FLOWFLAG /GET FLOW CONTROL FLAG
+ SNA CLA /SKIP IF SET
+ JMP RINGEXIT /JUMP IF NOT
+ TAD RINTEMP /GET THE CHARACTER
+ AND [177] /JUST SEVEN-BIT
+ TAD [-CNTRLS] /COMPARE TO <^S>
+ SNA /SKIP IF OTHER
+ JMP RWATSET /JUMP IF IT MATCHES
+ TAD [-CNTRLQ+CNTRLS]/COMPARE TO <^S>
+ SNA CLA /SKIP IF OTHER
+ JMP RWATCLEAR /JUMP IF IT MATCHES
+RINGEXI,TAD RINTEMP /GET THE CHARACTER
+ JMP I RINGET /TAKE IMMEDIATE RETURN
+\f/ COMES HERE ON <^S> TO SET OUTPUT WAIT.
+
+RWATSET,NL4000 /SET WAIT VALUE
+
+/ COMES HERE ON <^Q> TO CLEAR OUTPUT WAIT.
+
+RWATCLE,DCA REMWAIT /STORE NEW STATE
+RINGNON,ISZ RINGET /BUMP RETURN ADDRESS
+ JMP I RINGET /TAKE SKIP RETURN
+
+/ REMOTE LINE RESET ROUTINE. /026 CJL
+
+/ CALLING SEQUENCE:
+
+/ JMS I (REMRESET) /CALL ROUTINE
+/ RETURN /RETURN WITH CLEAR AC
+
+/ RETURNS WITH CLEAR AC AND ALL REMOTE LINE VARIABLES RESET.
+
+REMRESE,.-. /REMOTE LINE RESET ROUTINE
+ TAD [REMBUFFER] /SETUP THE REMOTE LINE
+ DCA REMINSERT /OUTPUT INSERTION POINTER
+ TAD [REMBUFFER] /SETUP THE REMOTE LINE
+ DCA REMREMOVE /OUTPUT REMOVAL POINTER
+ TAD (RINBUFFER) /SETUP THE REMOTE LINE
+ DCA RININSERT /INPUT INSERTION POINTER
+ TAD (RINBUFFER) /SETUP THE REMOTE LINE
+ DCA RINREMOVE /INPUT REMOVAL POINTER
+ DCA REMWAIT /CLEAR REMOTE OUTPUT WAIT
+ DCA RINWAIT /CLEAR REMOTE INPUT WAIT
+ DCA RINERROR /CLEAR REMOTE INPUT ERROR
+ JMP I REMRESET /RETURN
+
+RININSE,.-. /REMOTE INPUT INSERTION POINTER
+RINREMO,.-. /REMOTE INPUT REMOVAL POINTER
+RINTEMP,.-. /REMOTE INPUT TEMPORARY /047 CJL
+
+ PAGE
+\f/ REMOTE LINE OUTPUT ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ TAD CHAR /CHARACTER TO OUTPUT IN AC
+/ JMS I (REMOUT) /CALL ROUTINE
+/ RETURN /RETURNS HERE WITH CLEAR AC
+
+REMOUT, .-. /REMOTE LINE OUTPUT ROUTINE
+ DCA REMTEMP /SAVE PASSED VALUE
+ TAD REMINSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD REMREMOVE /COMPARE TO REMOVAL POINTER
+ TAD REMWAIT /ADD ON WAIT STATUS
+ SZA CLA /SKIP IF BUFFER EMPTY AND NOT WAITING /047 CJL
+ JMP RSTUFF /JUMP IF CHARACTER MUST BE BUFFERED
+ TAD REMTEMP /GET PASSED VALUE /047 CJL
+ JMS I (REMPUT) /TRY TO OUTPUT THE CHARACTER NOW /047 CJL
+ JMP RSTUFF /COULDN'T OUTPUT IT, SO BUFFER IT /047 CJL
+ JMP I REMOUT /RETURN
+
+RSTUFF, TAD REMTEMP /GET THE CHARACTER
+ CDF BUFFLD /GOTO BUFFER FIELD
+ DCA I REMINSERT /STORE IN BUFFER
+ CDF PRGFLD /BACK TO OUR FIELD
+ NL0001 /SET BUFFER INCREMENT
+ TAD REMINSERT /BUMP INSERTION POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ TAD [REMBUFFER] /MAKE IT ABSOLUTE
+ DCA REMINSERT /STORE UPDATED POINTER
+ JMP I REMOUT /RETURN
+
+/ REMOTE LINE OUTPUT TEST ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ JMS I (REMTEST) /CALL ROUTINE
+/ NOT READY /RETURN IF OUTPUT NOT READY FOR NEXT CHARACTER
+/ READY /OUTPUT CAN ACCEPT ANOTHER CHARACTER NOW
+
+/ AC WILL BE CLEARED AFTER THE CALL.
+
+REMTEST,.-. /REMOTE LINE OUTPUT TEST ROUTINE
+ NL0001 /SET BUFFER INCREMENT
+ TAD REMINSERT /GET INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD REMREMOVE /COMPARE TO REMOVAL POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ SZA CLA /SKIP IF BUFFER IS FULL
+ ISZ REMTEST /BUMP RETURN IF BUFFER IS NOT FULL
+ JMP I REMTEST /RETURN EITHER WAY
+\f/ REMOTE LINE OUTPUT BUFFER UPDATE ROUTINE.
+
+/ CALLING SEQUENCE:
+
+/ JMS I (REMUPDATE) /CALL ROUTINE
+/ RETURN /RETURN WITH CLEAR AC
+
+/ THE REMOTE LINE OUTPUT BUFFERING ROUTINES WILL UPDATE POINTERS, ETC. IF ANY
+/ STATUS HAS CHANGED SINCE THE LAST CALL.
+
+REMUPDA,.-. /REMOTE LINE OUTPUT UPDATE ROUTINE
+ TAD RINWAIT /GET INPUT WAIT FLAG
+ CLL RAL /MAIN STATE BIT TO LINK
+ SNA CLA /SKIP IF OUTPUT FLOW CHARACTER NEEDED /047 CJL
+ JMP REMCHECK /JUMP IF CHARACTER NOT NEEDED NOW /047 CJL
+ TAD (CNTRLQ) /ASSUME RELEASE CHARACTER NEEDED /047 CJL
+ SNL /SKIP IF SO /047 CJL
+ TAD [CNTRLS-CNTRLQ] /ELSE CHANGE IT TO HOLD CHARACTER /047 CJL
+ JMS I (REMPUT) /TRY TO OUTPUT IT NOW /047 CJL
+ JMP REMCHECK /COULDN'T DO IT, FORGET IT FOR NOW /047 CJL
+ CML RAR /SET NEW STATE VALUE /047 CJL
+ DCA RINWAIT /STORE IT
+REMCHEC,TAD REMWAIT /GET OUTPUT WAIT FLAG
+ SZA CLA /SKIP IF NOT WAITING
+ JMP I REMUPDATE /JUST RETURN IF WAITING
+ TAD REMINSERT /GET OUTPUT INSERTION POINTER
+ CIA /INVERT FOR TEST
+ TAD REMREMOVE /COMPARE TO OUTPUT REMOVAL POINTER
+ SNA CLA /SKIP IF BUFFER CONTAINS SOMETHING /047 CJL
+ JMP I REMUPDATE /RETURN IF BUFFER EMPTY /047 CJL
+ CDF BUFFLD /GOTO BUFFER FIELD
+ TAD I REMREMOVE /GET A CHARACTER FROM THE BUFFER
+ CDF PRGFLD /BACK TO OUR FIELD
+ JMS I (REMPUT) /TRY TO OUTPUT THE CHARACTER NOW /047 CJL
+ JMP I REMUPDATE /COULDN'T DO IT, SO JUST RETURN /047 CJL
+ NL0001 /SET BUFFER INCREMENT
+ TAD REMREMOVE /BUMP REMOVAL POINTER
+ AND [BUFSIZE-1] /JUST BUFFER BITS
+ TAD [REMBUFFER] /MAKE IT ABSOLUTE
+ DCA REMREMOVE /STORE UPDATED POINTER
+ JMP I REMUPDATE /RETURN
+
+ REMTEMP=REMUPDATE /REMOTE OUTPUT TEMPORARY
+\f/ LOW-LEVEL CONSOLE OUTPUT ROUTINE. /047 CJL
+
+/ CALLING SEQUENCE:
+
+/ [CHARACTER TO OUTPUT IN THE AC]
+
+/ JMS I (CONPUT) /CALL ROUTINE
+/ NO OUTPUT /RETURNS HERE IF OUTPUT UNAVAILABLE
+/ OUTPUT /RETURNS HERE IF CHARACTER WAS OUTPUT
+
+CONPUT, .-. /CONSOLE OUTPUT ROUTINE
+CONTSF, TSFIOT /FLAG UP?
+ JMP CONCLEAR /NO, FORGET IT
+CONTLS, TLSIOT /YES, OUTPUT THE CHARACTER NOW
+ ISZ CONPUT /TAKE SKIP RETURN
+CONCLEA,CLA /CLEAN UP
+ JMP I CONPUT /RETURN EITHER WAY
+
+/ CONSOLE RESET ROUTINE. /026 CJL
+
+/ CALLING SEQUENCE:
+
+/ JMS I (CONRESET) /CALL ROUTINE
+/ RETURN /RETURN WITH CLEAR AC
+
+/ RETURNS WITH CLEAR AC AND ALL CONSOLE VARIABLES RESET.
+
+CONRESE,.-. /CONSOLE RESET ROUTINE
+ TAD [CONBUFFER] /SETUP THE
+ DCA I (CONINSERT) /CONSOLE OUTPUT INSERTION POINTER
+ TAD [CONBUFFER] /SETUP THE
+ DCA I (CONREMOVE) /CONSOLE OUTPUT REMOVAL POINTER
+ TAD [KEYBUFFER] /SETUP THE
+ DCA I (KEYINSERT) /KEYBOARD INSERTION POINTER
+ TAD [KEYBUFFER] /SETUP THE
+ DCA I (KEYREMOVE) /KEYBOARD REMOVAL POINTER
+ DCA I (CONWAIT) /CLEAR OUTPUT WAIT
+ DCA KEYERROR /CLEAR KEYBOARD ERROR
+ JMP I CONRESET /RETURN
+\f/ LOW-LEVEL REMOTE LINE OUTPUT ROUTINE. /047 CJL
+
+/ CALLING SEQUENCE:
+
+/ [CHARACTER TO OUTPUT IN THE AC]
+
+/ JMS I (REMPUT) /CALL ROUTINE
+/ NO OUTPUT /RETURNS HERE IF OUTPUT UNAVAILABLE
+/ OUTPUT /RETURNS HERE IF CHARACTER WAS OUTPUT
+
+REMPUT, .-. /REMOTE LINE OUTPUT ROUTINE
+DM1AN2, AND [377] /ENSURE EIGHT BIT /049 CJL
+
+/ THE ABOVE INSTRUCTION IS FOR DECMATE I USE ONLY. THE DEFAULT INSTRUCTION IS
+/ FOR KL8 INTERFACES.
+
+ *DM1AN2 /OVERLAY DECMATE II CODE /049 CJL
+
+DM1AN2, SKP /WE'RE NOT A DECMATE I /049 CJL
+ TAD [400] /SET WRITE BIT /049 CJL
+REMTSF, DCA RMPTEMP /SAVE PASSED VALUE
+RMPUT0, TAD OUTFLAG /CHECK IF OUTPUT IS AVAILABLE
+REMTLS, SNA CLA /SKIP IF SO
+RMPUT1, JMP I REMPUT /RETURN IF NOT
+REMCLEA,TAD RMPTEMP /GET THE PASSED VALUE
+RMPUT2, OLS /OUTPUT THE CHARACTER NOW
+
+/ THE ABOVE INSTRUCTIONS ARE FOR DECMATE II USE ONLY. THE DEFAULT INSTRUCTIONS
+/ ARE FOR KL8 INTERFACES.
+
+ *REMTSF /OVERLAY DECMATE II CODE
+
+REMTSF, RTSFIOT /FLAG UP?
+RMPUT0, JMP REMCLEAR /NO, FORGET IT
+REMTLS, RTLSIOT /YES, OUTPUT THE CHARACTER NOW
+RMPUT1, ISZ REMPUT /TAKE SKIP RETURN
+REMCLEA,CLA /CLEAN UP
+RMPUT2, JMP I REMPUT /RETURN EITHER WAY
+
+ CLA /CLEAN UP
+ DCA OUTFLAG /INDICATE OUTPUT IS UNAVAILABLE
+ ISZ REMPUT /TAKE SKIP RETURN
+ JMP I REMPUT /RETURN TO CALLER
+
+ RMPTEMP=CONRESET /REMOTE OUTPUT TEMPORARY
+
+ PAGE
+\f/ SEVEN-BIT COMMAND TABLES. /034 CJL
+
+ CMDTBL= . /COMMAND TABLE HERE
+
+ "C&177; "O&177; "N&177 /\
+ "N&177; "E&177; "C&177 / >CONNECT COMMAND
+ "T&177; -1 //
+ CONSRV /CONNECT ROUTINE ADDRESS
+
+ "F&177; "I&177; "N&177 /\
+ "I&177; "S&177; "H&177 / >FINISH COMMAND
+ -1 //
+ FINSRV /FINISH ROUTINE ADDRESS
+
+ "E&177; "X&177; "I&177 /EXIT
+ "T&177; -1 /COMMAND
+ EXITKERMIT /EXIT ROUTINE ADDRESS
+
+ "S&177; "E&177; "N&177 /SEND
+ "D&177; -1 /COMMAND
+ SNDSRV /SEND ROUTINE ADDRESS
+
+ "G&177; "E&177; "T&177 /GET
+ -1 /COMMAND
+ GETSRV /GET ROUTINE ADDRESS
+
+ "R&177; "E&177; "C&177 /\
+ "E&177; "I&177; "V&177 / >RECEIVE COMMAND
+ "E&177; -1 //
+ RECSRV /RECEIVE ROUTINE ADDRESS
+\f "H&177; "E&177; "L&177 /HELP
+ "P&177; -1 /COMMAND
+ HELPSRV /HELP ROUTINE ADDRESS
+
+ -1 /THIS ENDS THE TABLE /034 CJL
+
+/ REMOTE PACKET INPUT BUFFER. /014 CJL
+
+RRBUF, 0 /MARK
+RRLEN, 0 /PACKET LENGTH
+RRSEQ, 0 /PACKET SEQ
+RRTYP, 0 /PACKET TYPE
+
+ DECIMAL
+
+RRDTA, ZBLOCK 91 /DATA GOES HERE
+
+ OCTAL
+
+RTERMI, 0 /ADD LOCATION WHERE TERMINATOR IS STORED/A004
+ /ON RECEIVE IF BUFFER IS MAXIMUM LENGTH /A004
+
+/ REMOTE PACKET OUTPUT BUFFER
+
+RSBUF, CNTRLA /PACKET BUFFER (BEGINS WITH "SOH") /034 CJL
+RSLEN, 0 /PACKET LENGTH GOES HERE
+RSSEQ, 0 /PACKET SEQUENCE GOES HERE
+RSTYP, 0 /PACKET TYPE GOES HERE
+
+ DECIMAL
+
+RSDTA, ZBLOCK 91 /DATA GOES HERE
+
+ 0 /CHECKSUM HERE ON MAX PACKET
+ 0 /EOL (IF USED HERE ON MAX PACKET)
+ 0 /INTERNAL TERMINATOR HERE ON MAX PACKET
+
+ OCTAL
+\f/ SEND-INIT PACKET DEFINITION
+
+INIDAT, DECIMAL
+
+ 94+32 /94 CHARS MAX
+
+ OCTAL
+
+ "/&177 /15 SECOND TIME-OUT /M013/014 CJL
+ " &177 /NO PADDING
+ 0+100&177 /NO PADDING CHAR
+ " &177+15 /CR FOR EOL
+ "#&177 /QUOTE CHAR
+ "N&137 /NO 8TH BIT QUOTING
+ "1&177 /CHECK TYPE 1
+ " &177 /NO REPEAT CHAR
+ " &177+0 /NO EXTRA CAPABILITY
+NODATA, -1 /END OF DATA (USE THIS FOR SENDING NO-DATA)
+\f PAGE /GET TO NEXT PAGE /028 CJL
+
+/ NO-INTERRUPT CONSOLE INPUT/OUTPUT SUPPORT ROUTINES. /023 CJL
+
+/ MODIFIED FOR FORCED-ECHO AND COLUMN-COUNTING. /043 CJL
+
+/ CONSOLE INPUT ROUTINE. RETURNS LATEST CHARACTER WITHOUT ECHOING. MAY BE
+/ CALLED WITH DIRTY AC. RETURNS LATEST SEVEN-BIT CHARACTER TYPED WHILE FIELDING
+/ POTENTIAL <^S>/<^Q> PROTOCOL.
+
+INPUT, .-. /CONSOLE INPUT ROUTINE
+INPWAIT,JMS CHKUP /TRY TO GET A CHARACTER
+ TAD INCHAR /GET THE CHARACTER
+ SNA /SKIP IF ANYTHING CAME IN
+ JMP INPWAIT /WAIT FOR ANYTHING
+ JMP I INPUT /RETURN WITH LATEST CHARACTER
+
+/ CONSOLE OUTPUT ROUTINE. OUTPUTS CHARACTER IN AC (INCLUDING <HT> VIA
+/ SIMULATION). RETURNS WITH CLEAR AC. SUBJECT TO CONSOLE ECHO STATUS (ECHOSW).
+
+P7CH, .-. /CONSOLE OUTPUT ROUTINE
+ TAD (-CNTRLI) /COMPARE TO <HT>
+ SNA /SKIP IF OTHER
+ JMP DOTAB /JUMP IF <HT>
+ TAD L11/(CNTRLI) /RESTORE THE CHARACTER
+ JMS P7CHAR /PRINT IT (UPDATING COLUMN COUNT)
+ JMP I P7CH /RETURN
+
+DOTAB, TAD [" &177] /GET A <SPACE>
+ JMS P7CHAR /OUTPUT IT
+ TAD COLUMN /GET CURRENT COLUMN COUNT
+ AND [7] /JUST TAB BITS
+ SZA CLA /SKIP IF NOW AT NEW TAB STOP
+ JMP DOTAB /ELSE KEEP GOING
+ JMP I P7CH /RETURN
+
+/ FORCED-ECHO CONSOLE OUTPUT ROUTINE. SAME AS P7CH BUT CLEARS ECHOSW BEFORE
+/ OUTPUT OF THE CHARACTER.
+
+P7ECHO, .-. /CONSOLE OUTPUT WITH FORCED-ECHO ROUTINE
+ DCA P7TEMP /SAVE PASSED VALUE
+ DCA ECHOSW /CLEAR ECHO STATUS
+ TAD P7TEMP /RESTORE THE CHARACTER
+ JMS P7CH /CALL MAIN ROUTINE
+ JMP I P7ECHO /RETURN
+\fCHKUP, .-. /CHECK FOR <^C>, ETC. ROUTINE
+ JMS CTLCTST /CALL LOW-LEVEL INPUT CHECK ROUTINE
+ SNA /SKIP IF ANYTHING CAME BACK
+ JMP CHKCLR /ELSE FORGET IT
+ TAD (-CNTRLP) /COMPARE TO <^P>
+ SNA /SKIP IF OTHER
+ JMP DOUP /GO HANDLE <^P> THERE
+ IAC /TAD (-CNTRLO+CNTRLP)/COMPARE TO <^O>
+ SNA /SKIP IF OTHER
+ JMP DOUO /GO HANDLER <^O> THERE
+ TAD (-CNTRLS+CNTRLO) /COMPARE TO <^S>
+ SZA CLA /SKIP IF IT MATCHES
+ JMP I CHKUP /RETURN ON UNIMPORTANT CHARACTERS
+UQWAIT, JMS CTLCTST /CALL LOW-LEVEL INPUT CHECK ROUTINE
+ TAD (-CNTRLQ) /COMPARE TO <^Q>
+ SZA CLA /SKIP IF IT MATCHES
+ JMP UQWAIT /ELSE WAIT FOR <^Q> FOREVER
+CHKCLR, DCA INCHAR /OBLITERATE INPUT CHARACTER
+ JMP I CHKUP /RETURN
+
+/ COMES HERE TO HANDLE <^P>.
+
+DOUP, TAD ("P&177) /GET A "P"
+ JMS UPRINT /PRINT "^P"
+ JMP I UPADDRESS /GO WHERE YOU SHOULD
+
+/ COMES HERE TO HANDLE <^O>.
+
+DOUO, TAD ("O&177) /GET AN "O"
+ JMS UPRINT /PRINT "^O"
+ NL4000 /SET REVERSING BIT
+ TAD ECHOSW /REVERSE THE ECHO STATE
+ DCA ECHOSW /STORE BACK
+ JMP CHKCLR /OBLITERATE <^O> AND RETURN
+
+CTLCTST,.-. /LOW-LEVEL <^C> TEST ROUTINE
+ CLA /CLEAN UP
+KSFLOC, KSFIOT /FLAG UP?
+ JMP I CTLCTST /NO, JUST RETURN
+KRSZAP, KRSIOT /**** 6120 **** KRBIOT
+ AND [177] /JUST SEVEN-BIT
+ DCA INCHAR /SAVE THE CHARACTER
+ NL7775 /SET -<^C> VALUE
+ TAD INCHAR /COMPARE TO CHARACTER
+ SNA CLA /SKIP IF OTHER THAN <^C>
+ JMP I UCADDRESS /JUMP IF <^C>
+KCCZAP, KCCIOT /**** 6120 **** 0000
+ TAD INCHAR /GET THE CHARACTER
+ JMP I CTLCTST /RETURN
+\fP7CHAR, .-. /LOWER-LEVEL CONSOLE PRINT ROUTINE
+ DCA P7TEMP /SAVE PASSED VALUE
+P7AGN, JMS CHKUP /CHECK FOR <^C>, ETC.
+ TAD ECHOSW /GET CURRENT ECHO STATUS
+ SPA CLA /SKIP IF ECHO ON
+ JMP P7OFF /JUMP IF ECHO OFF
+ TAD P7TEMP /GET THE PASSED VALUE BACK
+ JMS P7OUT /TRY TO OUTPUT IT
+ JMP P7AGN /COULDN'T OUTPUT, GO WAIT THERE
+P7OFF, JMS CHKUP /CHECK FOR <^C>, ETC.
+ TAD P7TEMP /GET THE CHARACTER BACK
+ AND [140] /JUST QUADRANT BITS
+ SZA CLA /SKIP IF CONTROL CHARACTER
+ ISZ COLUMN /BUMP COLUMN IF PRINTING CHARACTER
+L11, CNTRLI/NOP /JUST IN CASE
+ TAD P7TEMP /GET THE CHARACTER AGAIN
+ TAD (-CNTRLM) /COMPARE TO <CR>
+ SNA /SKIP IF NOT <CR>
+ DCA COLUMN /CLEAR COLUMN COUNT ON <CR>
+ TAD (-CNTRLH+CNTRLM)/COMPARE TO <BS>
+ SNA CLA /SKIP IF OTHER
+ NL7777 /SET BACKUP VALUE
+ TAD COLUMN /UPDATE COLUMN COUNT
+ DCA COLUMN /STORE BACK
+ JMP I P7CHAR /RETURN
+
+P7OUT, .-. /LOW-LEVEL CONSOLE OUTPUT ROUTINE
+P7TSF, TSFIOT /FLAG UP?
+ JMP I P7OUT /NO, TAKE IMMEDIATE RETURN WITH AC INTACT
+P7TLS, TLSIOT /YES, OUTPUT IT
+ CLA /CLEAN UP
+ ISZ P7OUT /BUMP RETURN ADDRESS
+ JMP I P7OUT /TAKE SKIP RETURN TO CALLER
+
+/ COMES HERE TO HANDLE <^C> IF SO ENABLED.
+
+UPCPRT, TAD ("C&177) /GET A "C"
+ JMS UPRINT /PRINT "^C"
+KCCZP2, KCCIOT /**** 6120 **** 0000
+ JMP I [CLOOP] /RESTART
+
+UPRINT, .-. /"^"<CHARACTER> PRINTING ROUTINE
+ DCA P7TEMP /SAVE PASSED VALUE
+ TAD ("^&177) /GET AN "^"
+ JMS P7OUT /OUTPUT IT
+ JMP .-1 /WAIT FOR IT
+ TAD P7TEMP /GET PASSED VALUE
+ JMS P7OUT /OUTPUT IT
+ JMP .-1 /WAIT FOR IT
+ JMP I UPRINT /RETURN
+
+P7TEMP, .-. /OUTPUT ROUTINE TEMPORARY
+\f PAGE
+
+/ HANDLER I/O BUFFER DEFINITIONS. /014 CJL
+
+ HNDLR= . /BUFFER FOR DISK I/O HANDLER /014 CJL
+
+ *PAGCNT^200+HNDLR /RESET ORIGIN PAST HANDLER BUFFER /014 CJL
+
+ IFNZRO SBOOT-.&4000 <ERROR .> /028 CJL
+
+ *SBOOT-2 /JUST BEFORE EXIT ADDRESS /025 CJL
+EXITKER=. /WHERE TO EXIT TO /025 CJL
+ 0
+ CAF /PHPH
+\f/ ONCE-ONLY INITIALIZATION CODE. /024 CJL
+
+ *HNDLR /OVER AVAILABLE SPACE
+
+INITIAL,CLA CLL /CLEAN UP
+COUTINI,TLSIOT /RAISE CONSOLE OUTPUT FLAG /046 CJL
+ TAD INITIA/(CLA CLL)/GET REPLACEMENT INSTRUCTION
+ DCA I [CLOOP] /DON'T COME BACK TO US
+ JMS I (MACHINE) /IDENTIFY CPU TYPE
+ DCA CPUTEMP /SAVE IT
+ TAD CPUTEMP /GET CPU TYPE
+ TAD (-13) /COMPARE TO DEADLY 6120 VALUE
+ SNA CLA /SKIP IF OTHER
+ JMP INI6120 /JUMP IF IT MATCHES
+ROUTINI,RTLSIOT /INITIALIZE REMOTE OUTPUT /046 CJL
+RININIT,RKRBIOT /INITIALIZE REMOTE INPUT /046 CJL
+ CLA /CLEAN UP
+INITPRT,
+/PHPHPH
+/ JMS I [SCRIBE] /GIVE THEM THE
+/ INITMSG /OPENING MESSAGE
+/ JMS I [SCRIBE] /GIVE THEM THE
+/ DAYMSG /DAY MESSAGE
+/ JMS I [SCRIBE] /GIVE THEM THE
+/ MONMSG /MONTH MESSAGE
+/ JMS I [SCRIBE] /GIVE THEM THE
+/ YEARMSG /YEAR MESSAGE
+/ JMS I [SCRIBE] /GIVE THEM THE
+/ CPUTMSG /CPU ID MESSAGE
+ TAD CPUTEMP /*1
+ CLL RTL /*4
+ TAD CPUTEMP /*5
+ TAD (CPULIST) /POINT TO PROPER MESSAGE
+ DCA TST6120 /STORE IN-LINE
+/ JMS I [SCRIBE] /TELL THEM THEIR
+ SKP /PHPH
+TST6120,0 /ACTUAL CPU ID
+/ JMS I [SCRIBE] /GIVE THEM THE
+/ CLOSMSG /CLOSING MESSAGE
+DMPRZAP,JMP .+3 /**** DECMATE USAGE DETECTED **** 0000
+ JMS I [SCRIBE] /GIVE THEM THE
+SPZAP, DMPOMSG /DECMATE PORT MESSAGE
+ JMS I [SCRIBE] /GIVE THEM THE
+ CRLF /END OF LINE
+ JMS I [SCRIBE] /GIVE THEM THE
+ LCLMSG /LOCAL PREFERENCE MESSAGE
+/ JMS I [SCRIBE] /TELL THEM THEY CAN
+/ THLPMSG /ASK FOR HELP
+ TAD CPUTEMP /GET CPU TYPE
+ CLL RTL /*4
+ TAD (CPUPRMPT-1) /POINT TO PROPER ENTRY
+ DCA XR0 /STASH THE POINTER
+ TAD (-4) /GET MOVE COUNT
+ JMS MESMOVE /MOVE THE PROPER PROMPT TEXT
+ PROMID-1 /TO THERE
+\f TAD CPUTEMP /*1
+ CLL RTL /*4
+ TAD CPUTEMP /*5
+ TAD (CPUIDLST-1) /POINT TO PROPER ENTRY
+ DCA XR0 /STASH THE POINTER
+ TAD (-5) /GET MOVE COUNT
+ JMS MESMOVE /MOVE THE PROPER CPU ID TEXT
+ CPUMSG-1 /TO THERE
+ CIF USRFLD /GOTO USR FIELD /035 CJL
+ JMS I (USR) /CALL USER SERVICE ROUTINE /035 CJL
+ USRIN /LOCK USR IN /035 CJL
+
+/ DO FURTHER INITIALIZATION HERE.
+
+ JMP I [CLOOP] /GO BACK TO KERMIT PROPER
+
+/ COMES HERE TO INITIALIZE 6120-BASED MACHINES. /046 CJL
+
+INI6120,DCA I (KCCZAP) /ELIMINATE KCCIOT
+ DCA I (KCCZP2) /ELIMINATE KCCIOT
+ ISZ I (KRSZAP) /TURN KRSIOT
+ ISZ I (KRSZAP) /INTO KRBIOT
+ TAD ROUTINITIALIZE /GET OUTPUT INITIALIZE INSTRUCTION /046 CJL
+ TAD (-6336) /COMPARE TO POSSIBLE VALUE /046 CJL
+ SZA CLA /SKIP IF IT MATCHES SERIAL PRINTER VALUE/046 CJL
+ JMP TRYDM1 /JUMP IF NOT CONFIGURED FOR SERIAL PORT /046 CJL
+ TAD RININITIALIZE /GET INPUT INITIALIZE INSTRUCTION /046 CJL
+ TAD (-6326) /COMPARE TO POSSIBLE VALUE /046 CJL
+ SNA CLA /SKIP IF NOT CONFIGURED FOR SERIAL PORT /046 CJL
+ JMP DMSER /JUMP IF SERIAL PORT CONFIGURATION /046 CJL
+TRYDM1, CLSK /SKIP ON, CLEAR CLOCK FLAG IF DECMATE II/046 CJL
+ NOP /JUST IN CASE /046 CJL
+ CLCL /CLEAR VT278 CLOCK FLAG /046 CJL
+ NOP /JUST IN CASE /046 CJL
+ ISZ TST6120 /WASTE /046 CJL
+ JMP .-1 /SOME TIME /046 CJL
+ CLSK8A /VT278 CLOCK FLAG UP? /046 CJL
+ JMP TRYDM2 /NO, TRY DECMATE II, ETC. /046 CJL
+ DCA DMPRZAP /MAKE IT PRINT OUR MESSAGE /050 CJL
+ CIF CDF DMIFLD /GOTO DECMATE ONCE-ONLY CODE FIELD /046 CJL
+ JMP I (DM1INIT) /CONTINUE THERE /046 CJL
+
+TRYDM2, CLSK /CLOCK FLAG UP? /046 CJL
+ JMP ROUTINITIALIZE /NO, MUST BE SOMEBODY ELSE! /046 CJL
+ DCA DMPRZAP /MAKE IT PRINT OUR MESSAGE /048 CJL
+ CIF CDF DMIFLD /GOTO DECMATE ONCE-ONLY FIELD /046 CJL
+ JMP I (DM2INIT) /CONTINUE THERE /046 CJL
+
+/ COMES HERE IF SERIAL PORT CONFIGURATION ON DECMATE.
+
+DMSER, DCA DMPRZAP /MAKE IT PRINT OUR MESSAGE /048 CJL
+ TAD (DMPPMSG) /GET OUR MESSAGE ADDRESS /048 CJL
+ DCA SPZAP /STORE IN-LINE /048 CJL
+ JMP ROUTINITIALIZE /CONTINUE THERE
+\fMESMOVE,.-. /MESSAGE MOVE ROUTINE
+ DCA MMOVCNT /SAVE PASSED COUNT
+ TAD I MESMOVE /GET THE PASSED ARGUMENT
+ DCA XR1 /SET IT UP
+ ISZ MESMOVE /BUMP PAST ARGUMENT
+ CDF MSGFLD /GOTO BUFFER FIELD
+MESMVLP,TAD I XR0 /GET A WORD
+ DCA I XR1 /PUT A WORD
+ ISZ MMOVCNT /DONE YET?
+ JMP MESMVLP /NO, GO BACK
+ CDF PRGFLD /BACK TO OUR FIELD
+ JMP I MESMOVE /YES, RETURN
+
+CPUTEMP,.-. /TEMPORARY FOR MACHINE TYPE
+MMOVCNT,.-. /TEMPORARY FOR MOVE COUNT
+
+ PAGE
+\f/ CPU IDENTIFYING ROUTINE. /024 CJL
+
+/ RETURNS VALUE IN AC ACCORDING TO THE FOLLOWING RULE:
+
+/ AC CPU TYPE
+
+/ 0 UNKNOWN (DCC112, MP-12?)
+/ 1 PDP-5 (THE INCOMPATIBLE ONE!)
+/ 2 PDP-8 (THE REAL ONE!)
+/ 3 PDP-8/S (THE SLOW ONE!)
+/ 4 LINC-8 (THE STRANGE ONE!)
+/ 5 PDP-8/I (THE ORANGE ONE!)
+/ 6 PDP-8/L (THE STRIPPED-DOWN ONE!)
+/ 7 PDP-12 (THE GREEN ONE! (BLUE?))
+/ 10 PDP-8/E (THE FAST ONE!)
+/ 11 PDP-8/A (THE WIDE ONE!)
+/ 12 6100 (THE MICRO ONE!)
+/ 13 6120 (THE HARRIS ONE!)
+
+MACHINE,.-. /MACHINE IDENTIFYING ROUTINE
+ CLA CLL /THIS WORKS ON EVERYBODY!
+ TAD 0 /GET PDP-5 PC
+ DCA MACHTEMP /SAVE IT
+ TAD (IMA5-1) /GET PDP-5 NEW PC
+ DCA 0 /STORE IT
+
+/ IF WE GET HERE, WE'RE NOT A PDP-5.
+
+ TAD MACHTEMP /GET OLD LOCATION ZERO
+ DCA 0 /RESTORE IT
+ NL3776 /PDP-8/I, L WEIRDNESS
+ TAD (-3776) /COMPARE TO POSSIBLE VALUE
+ SNA CLA /SKIP IF NOT THOSE TWO
+ JMP IMA8IL /JUMP IF ONE OF THEM
+
+/ IF WE GET HERE, WE'RE NOT A PDP-8/I OR PDP-8/L.
+
+ NL7776 /SETUP -2
+ TAD (-7776) /COMPARE TO EXPECTED VALUE
+ SZA CLA /SKIP IF OK
+ JMP IMA8S /JUMP IF RETARDED BROTHER
+
+/ IF WE GET HERE, WE'RE NOT A PDP-8/S.
+
+ NL0100 /SETUP 0100
+ TAD (-100) /COMPARE TO EXPECTED VALUE
+ SNA CLA /SKIP IF STRAIGHT PDP-8
+ JMP IMAOMNIBUS /JUMP IF NEWER CPU
+\f/ IF WE GET HERE, WE ARE A PDP-8, BUT ARE WE A LINC-8?
+
+ NL7777 /SETUP LINC TEST VALUE
+ IACA /LOAD LINC "A" REGISTER
+ CLA /CLEAN UP
+ IAAC /GET IT BACK
+ IAC /ADD ONE
+ SNA CLA /SKIP IF NO LINC HARDWARE
+ JMP IMAL8 /JUMP IF LINC-8
+
+/ SINCE WE DON'T CARE ABOUT PERIPHERALS, WE ARE A PDP-8.
+
+ JMP IMA8 /GO TELL THEM WE ARE A PDP-8
+
+/ COMES HERE IF PDP-8/I OR PDP-8/L.
+
+IMA8IL, NL7777 /SETUP TEST VALUE
+ CLA!401 /DO PDP-8/I GROUP THREE EAE CLA
+ SZA CLA /SKIP IF PDP-8/I
+ JMP IMA8L /JUMP IF NOT
+
+/ IF WE GET HERE, WE ARE A PDP-8/I, BUT ARE WE A PDP-12?
+
+ LINC /GOTO LINC MODE
+ COM /COMPLEMENT AC IF PDP-12, ELSE A HARMLESS AND
+ PDP /GOTO PDP8 MODE IF PDP-12, ELSE HARMLESS AND
+ IAC /ADD ONE FOR TEST
+ SNA CLA /SKIP IF JUST PDP-8/I
+ JMP IMA12 /JUMP IF ACTUALLY A LINC-8/I
+
+/ SINCE WE DON'T CARE ABOUT PERIPHERALS, WE ARE JUST A PDP-8/I.
+
+ JMP IMA8I /TELL THEM WE ARE A PDP-8/I
+
+IMAOMNI,RTL RTR /DO STRANGE OMNIBUS INSTRUCTION
+PC8A, SNA /SKIP IF NOT A MICRO CHIP
+ JMP IMA61 /JUMP IF ONE OF THOSE THINGS
+ TAD (.&7600+16^7777) /CHECK FOR PDP-8/E VALUE
+ SNA /SKIP IF NOT HIM
+ JMP IMA8E /JUMP IF IT IS A PDP-8/E (/F OR /M OR 8A-6XX)
+ TAD (.&7600+16-PC8A) /COMPARE TO PDP-8/A VALUE /051 CJL
+ SNA CLA /SKIP IF SOMEBODY ELSE
+ JMP IMA8A /JUMP IF IT MATCHES
+
+/ IF WE GET HERE, SOME STRANGE PROCESSOR IS RUNNING US.
+
+ JMP IMAUNKNOWN /YOU FIGURE IT OUT!
+\f/ IF WE GET HERE, WE ARE A 6100 OR 6120.
+
+IMA61, NL0010 /DO 6120 SPECIAL INSTRUCTION
+ TAD (-10) /COMPARE TO EXPECTED VALUE
+ SNA CLA /SKIP IF OTHER
+ JMP IMA6120 /JUMP IF IT MATCHES
+
+/ WE APPARENTLY ARE ON A 6100, SO TELL THEM SO.
+
+ JMP IMA6100 /TELL THEM WE ARE A 6100 MACHINE (VT-78, ETC.)
+
+/ RETURN GAUNTLET.
+
+IMA6120,IAC /SET 6120 VALUE
+IMA6100,IAC /SET 6100 VALUE
+IMA8A, IAC /SET PDP-8/A VALUE
+IMA8E, IAC /SET PDP-8/E VALUE
+IMA12, IAC /SET PDP-12 VALUE
+IMA8L, IAC /SET PDP-8/L VALUE
+IMA8I, IAC /SET PDP-8/I VALUE
+IMAL8, IAC /SET LINC-8 VALUE
+IMA8S, IAC /SET PDP-8/S VALUE
+IMA8, IAC /SET PDP-8 VALUE
+IMA5, IAC /SET PDP-5 VALUE
+IMAUNKN,JMP I MACHINE /RETURN
+
+MACHTEM,.-. /TEMPORARY FOR LOCATION ZERO
+
+ PAGE
+\f FIELD PRGFLD%10 /DUMP THE LITERALS NOW
+\f/ LAYOUT OF FIELD ONE (PERMANENT CONTENTS). /046 CJL
+
+ NOPUNCH /FOOL THE ASSEMBLER /046 CJL
+
+ FIELD USRFLD%10 /USR FIELD /046 CJL
+
+ *0 /WHERE IT LOADS /046 CJL
+
+USRLOAD,ZBLOCK 200-. /GET TO ENTRY POINT /046 CJL
+
+ USRENTR=. /LOCKED-IN USR ENTRY POINT /046 CJL
+
+USRENTR,ZBLOCK 2000-. /USR OWNS REST OF THIS AREA /046 CJL
+
+ FILBUFF=. /FILE I/O DONE HERE /046 CJL
+
+ FIELD BUFFLD%10 /FILE I/O BUFFER FIELD /046 CJL
+
+ *FILBUFFER /RESET ORIGIN /046 CJL
+
+FILBUFF,ZBLOCK PAGCNT^200 /THIS IS THE FILE I/O BUFFER /046 CJL
+
+ DIRBUFF=. /DIRECTORY LOOKUP I/O DONE HERE /028 CJL
+
+ FIELD DIRFLD%10 /DIRECTORY LOOKUP BUFFER FIELD /028 CJL
+
+ *DIRBUFFER /RESET ORIGIN /028 CJL
+
+FILECNT,.-. /-(NUMBER OF ENTRIES IN THIS SEGMENT)
+FRSTREC,.-. /FIRST RECORD OF FIRST ENTRY IN THIS SEGMENT
+DIRLINK,.-. /LINK TO NEXT SEGMENT; 0 IF LAST ACTIVE ONE
+ .-. /TENTATIVE ENTRY POINTER STORED HERE
+AIWNUMB,.-. /-(NUMBER OF ADDITIONAL INFORMATION WORDS)
+
+ ENTSTRT=. /FILE ENTRIES START HERE /046 CJL
+
+ ZBLOCK PAGCNT^200+DIRBUFFER-. /DIRECTORY ENTRIES HERE /046 CJL
+
+/ CONNECT MODE I/O BUFFERS. /026 CJL
+
+KEYBUFF,ZBLOCK BUFSIZE /KEYBOARD BUFFER /026 CJL
+CONBUFF,ZBLOCK BUFSIZE /CONSOLE OUTPUT BUFFER /026 CJL
+RINBUFF,ZBLOCK BUFSIZE /REMOTE INPUT BUFFER /026 CJL
+REMBUFF,ZBLOCK BUFSIZE /REMOTE OUTPUT BUFFER /026 CJL
+
+ FLD1ADR=. /SPACE AVAILABLE FOR TEXT, ETC. /046 CJL
+
+ ENPUNCH /UN-FOOL THE ASSEMBLER /046 CJL
+\f/ DECMATE ONCE-ONLY CODE. /046 CJL
+
+ FIELD DMIFLD%10 /DECMATE ONCE-ONLY CODE FIELD /046 CJL
+
+ *USRLOAD /OVER USR ROUTINE /046 CJL
+
+/ PAGE ZERO FOR ONCE-ONLY CODE. /046 CJL
+
+ *10 /GET TO AUTO-INDEX AREA /048 CJL
+
+XR0, .-. /AUTO-INDEX ZERO /048 CJL
+
+ *USRENTRY /OVER USR ENTRY POINT /046 CJL
+
+/ DECMATE I ONCE-ONLY CODE. /046 CJL
+
+DM1INIT,JMS I (DM1PORT) /INITIALIZE THE REMOTE PORTS /050 CJL
+ TAD (DM1LIST-1) /POINT TO REPLACEMENT LIST /050 CJL
+ JMS REPLACE /ZAP IN ALL OF OUR PATCHES /050 CJL
+ CDF PRGFLD /GOTO MAIN FIELD /050 CJL
+ TAD I (DIRXR) /GET PORT SELECTION /050 CJL
+ SNA CLA /SKIP IF PORT 1 REQUIRED /050 CJL
+ JMP USEP0 /JUMP IF PORT 0 REQUIRED /050 CJL
+ TAD (DM1SEC-1) /POINT TO REPLACEMENT LIST /050 CJL
+ JMS REPLACE /ZAP IN SECONDARY PATCHES /050 CJL
+USEP0, CIF CDF PRGFLD /BACK TO REST OF INITIALIZATION /046 CJL
+ JMP I (INITPRT) /CONTINUE THERE /046 CJL
+
+/ DECMATE II, ETC. ONCE-ONLY CODE. /046 CJL
+
+DM2INIT,JMS I (DMIPORT) /INITIALIZE THE REMOTE PORT /048 CJL
+ TAD (DM2LIST-1) /POINT TO REPLACEMENT LIST /048 CJL
+ JMS REPLACE /ZAP IN ALL OF OUR PATCHES /048 CJL
+ CIF CDF PRGFLD /BACK TO REST OF INITIALIZATION /046 CJL
+ JMP I (INITPRT) /CONTINUE THERE /046 CJL
+
+REPLACE,.-. /REPLACEMENT ROUTINE /048 CJL
+ DCA XR0 /SAVE PASSED LIST POINTER /048 CJL
+REPLUP, CDF DMIFLD /BACK TO OUR FIELD /048 CJL
+ TAD I XR0 /GET AN ADDRESS /048 CJL
+ SNA /SKIP IF NOT AT END OF LIST /048 CJL
+ JMP I REPLACE /RETURN IF END OF LIST /048 CJL
+ DCA REPADR /STASH THE ADDRESS /048 CJL
+ TAD I XR0 /GET THE REPLACEMENT VALUE /048 CJL
+ CDF PRGFLD /GOTO ZAPPING FIELD /048 CJL
+ DCA I REPADR /ZAP IT IN /048 CJL
+ JMP REPLUP /KEEP GOING /048 CJL
+
+REPADR, .-. /REPLACEMENT ADDRESS TEMPORARY /048 CJL
+\f/ DECMATE I PORT INITIALIZE ROUTINE /050 CJL
+
+DM1PORT,.-. /DECMATE I PORT INITIALIZE ROUTINE
+ TAD (234) /GET PORT 0 SCD ENABLE VALUE
+ WCON0 /WRITE PORT 0 CONTROL REGISTER
+ NL0000 /INDICATE PORT 0
+ JMS PRTINIT /INITIALIZE PORT 0
+
+/ CHANGE ALL IOTS TO PORT 1 VALUES.
+
+IOCLUP, ISZ PSETF1 /BUMP SET FLAG INSTRUCTION
+ ISZ PDUMRD /BUMP DUMMY READ INSTRUCTION
+ ISZ PSETF2 /BUMP SET FLAG INSTRUCTION
+ ISZ PSKIP /BUMP SKIP ON FLAG INSTRUCTION
+ ISZ PLOAD /BUMP LOAD INSTRUCTION
+ ISZ IOTCNT /DONE YET?
+ JMP IOCLUP /NO, KEEP GOING
+
+ TAD (234) /GET PORT 1 SCD ENABLE VALUE
+ WCON1 /WRITE PORT 1 CONTROL REGISTER
+ NL4000 /INDICATE PORT 1
+ JMS PRTINIT /INITIALIZE PORT 1
+ JMP I DM1PORT /RETURN
+
+PRTINIT,.-. /LOW-LEVEL PORT INTIALIZE ROUTINE
+ RACD /RESET DESIRED PORT
+ ISZ PWASTE /WASTE
+ JMP .-1 /SOME TIME
+ CLA /CLEAN UP
+PSETF1, RTFL0 /SET THE FLAG NOW
+ TAD (2516) /SETUP FOR 8 BITS, NO PARITY, ETC.
+ JMS PSEND /SEND TO MODE REGISTER 1
+ CDF PRGFLD /GOTO MAIN FIELD
+ TAD I (RATE) /GET BAUD RATE NOW
+ CDF DMIFLD /BACK TO OUR FIELD
+ TAD (2460) /ADD ON CLOCK ENABLES, ETC.
+ JMS PSEND /SEND TO MODE REGISTER 2
+ TAD (3425) /GET ENABLE AND RESET VALUE
+ JMS PSEND /SEND TO COMMAND REGISTER
+PDUMRD, RKRB0 /DO A DUMMY READ NOW
+PSETF2, RTFL0 /SET THE FLAG NOW
+ CLA /CLEAN UP
+ JMP I PRTINIT /RETURN
+
+PSEND, .-. /PORT WRITE ROUTINE
+PSKIP, RTSF0 /FLAG UP?
+ JMP PSKIP /NO, WAIT FOR IT
+PLOAD, RTLS0 /YES, LOAD THE VALUE
+ CLA /CLEAN UP
+ JMP I PSEND /RETURN
+
+IOTCNT, RKFL0-RKFL1 /INTER-DEVICE IOT COUNT
+PWASTE, 0 /TIMER TEMPORARY
+\f PAGE
+\f/ DECMATE II, ETC. PORT INITIALIZE ROUTINE. /048 CJL
+
+/ THIS ROUTINE IS MOSTLY "DARK GREY MAGIC" WHICH IS PRIMARILY DERIVED FROM THE
+/ "OFFICIAL" INFORMATION TAKEN FROM THE ONLY KNOWN DOCUMENTATION, THE DECMATE II
+/ PROGRAMMER'S REFERENCE MANUAL: EK-DECM2-RM-001. VARIOUS EMPLOYEES OF DIGITAL
+/ EQUIPMENT CORPORATION (A MULTI-NATIONAL COMPANY) HAVE ADDITIONALLY CONTRIBUTED
+/ TO THIS EFFORT BY PROVIDING PORTIONS OF THE "SACRED SLUSHWARE NOTES" ON A NOT
+/ NECESSARILY WILLING BASIS THROUGH THEIR RELEASED WORKS, SUCH AS, BUT NOT
+/ LIMITED TO, THE SOURCES OF THE PARTICULAR VERSION OF KERMIT-8 KNOWN AS K278.
+/ IT IS ASSUMED THAT THESE PEOPLE HAVE ACCESS TO BETTER DOCUMENTATION OF THE
+/ HARDWARE, AND ESPECIALLY DOCUMENTATION OF THE THREE DIFFERENT MODELS OF
+/ DECMATE (II, III, III+) THAT THESE ISSUES APPLY TO.
+
+/ SINCE IT IS NOT KNOWN WHETHER THE K278, ETC. CODE IS SPECIFIC AND PRECISE, OR
+/ MERELY SLOPPY, VARIOUS "QUIRKY" CODING TECHNIQUES HAVE BEEN LEFT "AS IS", WITH
+/ COMMENTS REGARDING POTENTIAL VARIANCE WITH DOCUMENTATION NOTED WHERE
+/ NECESSARY. THE ORDER OF ACCESS TO THE REGISTERS HAS BEEN LEFT INTACT IN CASE
+/ OF POTENTIAL INTERACTION. SEVERAL CHANGES HAVE BEEN MADE BEYOND THIS WORK AS
+/ A RESULT OF TRIAL-AND-ERROR, AND ALSO HAND DIS-ASSEMBLY OF SEVERAL DECMATE
+/ DISKETTES' CONTENTS.
+
+/ IT IS HOPED THAT FUTURE "NEGOTIATIONS" WITH DEC ALLOW FOR PROPER DISCLOSURE OF
+/ THESE ISSUES TO AVOID POTENTIAL SOFTWARE FAILURES EVIDENT IN THESE ROUTINES
+/ DUE TO LACK OF PROPER DOCUMENTATION.
+
+DMIPORT,.-. /COMMUNICATIONS PORT INITIALIZE ROUTINE
+
+/ ACCORDING TO THE DECMATE II MANUAL, THE FOLLOWING INSTRUCTION IS UNDEFINED.
+
+ MPRESET /RESET MULTIPROTOCOL COMMUNICATIONS CONTROLLER CHIP
+
+/ THE DECMATE III HAS AN INTERNAL MODEM OPTION WHICH IS NOT AVAILABLE IN THE
+/ DECMATE II. THE INTERFACE TO THIS DEVICE IS APPARENTLY SHARED WITH THE MPSCC
+/ MODEM INTERFACE WE NORMALLY USE, SO THE REGISTER ACCESS MUST BE MORE CAREFULLY
+/ DEFINED. THE APPARENT DIFFERENTIATION IS THE CURRENT VALUE OF THE DATA FIELD,
+/ NAMELY EITHER FIELD 0 OR 1. IT IS NOT KNOWN WHETHER THE THREE-BIT VALUE OF
+/ THE DATA FIELD IS SIGNIFICENT (PRESUMABLY FOR FUTURE EXPANSION), OR MERELY THE
+/ DATA FIELD'S LOW-ORDER BIT IS USED, AS ALL KNOWN EXAMPLES OF ALLEDGEDLY
+/ FUNCTIONAL CODE USE APPROPRIATE CDF 00 AND CDF 10 ONLY. APPARENTLY THE MODEM
+/ INTERFACE IS REFERRED TO AS "A" AND THE MPSCC INTERFACE IS REFERRED TO AS "B".
+
+ TAD (030) /GET RESET VALUE
+ CDF 00 /TALKING TO REGISTER 0A
+ MPSCC /RESET COMMUNICATIONS CHIP
+ CDF 10 /TALKING TO REGISTER 0B
+ MPSCC /RESET COMMUNICATIONS CHIP
+\f/ ACCORDING TO THE DECMATE II MANUAL, CONTROL REGISTER 2 "HAS NO RELEVANT
+/ BITS... IF IT IS EVER WRITTEN, IT MUST BE WRITTEN WITH ALL ZEROS." APPARENTLY
+/ THE MODEM INTERFACE DEMANDS A NON-ZERO VALUE BE WRITTEN TO REGISTER 2
+/ (PRESUMABLY TO DISABLE IT). TO SATISFY THE ABOVE REQUIREMENT (WHATEVER THIS
+/ IMPLIES!), REGISTER 2(B) IS WRITTEN WITH ALL ZEROS *LAST* IN CASE THIS IS A
+/ DECMATE II WHERE THE DATA FIELD CONSIDERATIONS ARE MEANINGLESS.
+
+ CDF 00 /TALKING TO REGISTER 0A
+ NL0002 /WANT REGISTER 2A
+ MPSCC /SELECT IT
+ TAD (020-2) /GET RESET VALUE
+ MPSCC /LOAD IT
+ CDF 10 /TALKING TO REGISTER 0B
+ NL0002 /WANT REGISTER 2B
+ MPSCC /SELECT IT
+ NL0000 /GET RESET VALUE (000)
+ MPSCC /LOAD IT
+
+/ THE K278 CODE DOES NOT HAVE SETUP CODE FOR REGISTER 4B, PRESUMABLY BECAUSE THE
+/ CODE PERFORMS A PANEL REQUEST (PRQ3) WHICH SETS UP THE EQUIVALENT VALUES FOR
+/ ASYNCHRONOUS OPERATION WITH ONE STOP BIT AND NO PARITY. IT IS NOT KNOWN IF
+/ THE DECMATE III EVEN *HAS* A REGISTER 4B, BUT PRESUMABLY IT IS AVAILABLE FOR
+/ LOADING THE RIGHT VALUES COMPATIBLE WITH THE DECMATE II, OR ATTEMPTING TO LOAD
+/ IT IS INNOCUOUS.
+
+ CDF 00 /TALKING TO REGISTER 0A
+ NL0004 /WANT REGISTER 4A
+ MPSCC /SELECT IT
+ TAD (104-4) /SETUP FOR ASYNCHRONOUS, ONE STOP BIT, NO PARITY
+ MPSCC /LOAD IT
+ CDF 10 /TALKING TO REGISTER 0B
+ NL0004 /WANT REGISTER 4B
+ MPSCC /SELECT IT
+ TAD (104-4) /SETUP FOR ASYNCHRONOUS, ONE STOP BIT, NO PARITY
+ MPSCC /LOAD IT
+\f/ THE DOCUMENTED VALUES (FOR DECMATE II) REGARDING CONTROL REGISTER 1 INDICATE
+/ THE PROPER VALUE OF 022, WHERE BIT[9] IS DEFINED AS A ZERO. THE VALUE OF 026
+/ IS TAKEN FROM K278 WHERE PRESUMABLY THE EXTRA BIT IS NECESSARY FOR SOME
+/ DECMATE III OBSCURITY.
+
+/ THE FOLLOWING CODE IS REDUNDANT FOR LOADING REGISTER 0A BEFORE AND AFTER
+/ LOADING REGISTER 0B. THIS IS EITHER A MISTAKE OR OBSCURELY NECESSARY (TAKEN
+/ FROM K278).
+
+ CDF 00 /TALKING TO REGISTER 0A
+ NL0001 /WANT REGISTER 1A
+ MPSCC /SELECT IT
+ TAD (026-1) /GET SETUP VALUE
+ MPSCC /LOAD IT
+ CDF 10 /TALKING TO REGISTER 0B
+ NL0001 /WANT REGISTER 1B
+ MPSCC /SELECT IT
+ TAD (026-1) /GET SETUP VALUE
+ MPSCC /LOAD IT
+ CDF 00 /TALKING TO REGISTER 0A
+ NL0001 /WANT REGISTER 1A
+ MPSCC /SELECT IT
+ TAD (026-1) /GET SETUP VALUE
+ MPSCC /LOAD IT
+
+/ THE DECMATE III INTERNAL MODEM IS PROBABLY ASYNCHRONOUS 8 BIT ONLY. ASSUMING
+/ THE RECEIVE SIDE OF THE INTERNAL MODEM IS ALWAYS "ENABLED", REGISTER 3A WOULD
+/ BE UNNECESSARY. THE K278 CODE DOES NOT ADDRESS REGISTER 3 AS AN A/B PAIR,
+/ PRESUMABLY BECAUSE REGISTER 3 IS NOT DECODED AND IS EFFECTIVELY REGISTER 3B
+/ REGARDLESS OF THE DATA FIELD. THIS IS EITHER TRUE, OR THE K278 CODING FAILS
+/ TO PROPERLY INITIALIZE THE DECMATE III MPSCC PORT.
+
+ NL0003 /WANT REGISTER 3
+ MPSCC /SELECT IT
+ TAD (301-3) /SETUP FOR 8 BITS AND ENABLE RECIVER
+ MPSCC /LOAD IT
+
+/ A SIMILAR SITUATION EXISTS FOR THE TRANSMITTER SIDE OF THE DECMATE III
+/ INTERNAL MODEM. REGISTER 5 IS UTILIZED ACCORDINGLY.
+
+ TAD (5-301) /WANT REGISTER 5
+ MPSCC /SELECT IT
+ TAD (150-5) /GET TRANSMITTER ENABLE, 8 BITS VALUE
+ MPSCC /LOAD IT
+
+/ THE DECMATE II REFERENCE MANUAL INDICATES THE PROPER SETTING FOR THE MODEM
+/ CONTROL REGISTER AS EITHER 030 OR 130 DEPENDING ON WHETHER BIT[5] INDICATES
+/ INTERNAL OR EXTERNAL TIMING (WHERE ONE OF THESE IS ILLEGAL FOR ASYNCHRONOUS
+/ OPERATION!). THE SETTING OF BITS [10] AND [11] WOULD INDICATE ENABLING OF
+/ BOTH LOCAL AND REMOTE LOOPBACKS, YET WE SET ONLY THESE BITS (ALA K278)
+/ ALLEDGEDLY FOR THE PURPOSE OF SETTING RTS AND DTR (WHICH ARE DOCUMENTED AS
+/ BEING BITS[7] AND [8] RESPECTIVELY).
+
+ NL0003 /SET VALUE
+ MLC /LOAD IT
+\f CLA /CLEAN UP
+
+/ THE BAUD RATE SHOULD BE SET HERE IF DESIRED.
+
+/ TAD BAUD /GET BAUD RATE
+/ MSB /LOAD IT
+ CLA /CLEAN UP
+ JMP I DMIPORT /RETURN
+\f/ DECMATE II, ETC. REPLACEMENT LIST. /048 CJL
+
+DM2LIST,CLDMZAP / *CLDMZAP
+
+ DMINIT&177+JMSC /CLDMZAP,JMS DMINIT
+
+ SETBAUD / *SETBAUD /050 CJL
+
+ MSB /SETBAUD,MSB /050 CJL
+
+ INLUP / *INLUP
+
+ TAD INFLAG /INLUP, TAD INFLAG
+
+ INSKIP / *INSKIP
+
+ NOTYET&177+JMPC /INSKIP, JMP NOTYET
+ INLUP1; DCA INFLAG /INLUP1, DCA INFLAG
+ INREAD; IRB /INREAD, IRB
+
+ INSTATUS / *INSTATUS
+
+ UPSTATUS&177+JMSC /INSTATU,JMS UPSTATUS
+
+ GETFL1 / *GETFL1
+
+ UPSTATUS&177+JMSC /GETFL1, JMS UPSTATUS
+
+ COMWAIT / *COMWAIT
+
+ GETFLOW&177+JMSC /COMWAIT,JMS GETFLOW
+
+ NOWAIT / *NOWAIT
+
+ TAD OUTFLAG /NOWAIT, TAD OUTFLAG
+ CMOUT1; SNA CLA /CMOUT1, SNA CLA
+ CMOUT2; OWAIT&177+JMPC /CMOUT2, JMP OWAIT
+ DM1AND; DCA OUTFLAG /DM1AND, DCA OUTFLAG
+ CMOUT3; OUTEMP&177+TADC /CMOUT3, TAD OUTEMP
+ CMOUT4; OLS /CMOUT4, OLS
+
+ BUFCHECK / *BUFCHECK
+
+ PUPSTATUS&177+JMSIC /BUFCHEC,JMS I PUPSTATUS
+
+ KERRLUP / *KERRLUP
+
+ PUPSTATUS&177+JMSIC /KERRLUP,JMS I PUPSTATUS
+\f RINTEST / *RINTEST
+
+ TAD INFLAG /RINTEST,TAD INFLAG
+ RINGT0; SNA CLA /RINGT0, SNA CLA
+ RINREAD;RINGNONE&177+JMPC /RINREAD,JMP RINGNONE
+ RINGT1; DCA INFLAG /RINGT1, DCA INFLAG
+ RINGT2; IRB /RINGT2, IRB
+
+ REMTSF / *REMTSF
+
+ RMPTEMP&177+DCAC /REMTSF, DCA RMPTEMP
+ RMPUT0; TAD OUTFLAG /RMPUT0, TAD OUTFLAG
+ REMTLS; SNA CLA /REMTLS, SNA CLA
+ RMPUT1; REMPUT&177+JMPIC /RMPUT1, JMP I REMPUT
+ REMCLEA;RMPTEMP&177+TADC /REMCLEA,TAD RMPTEMP
+ RMPUT2; OLS /RMPUT2, OLS
+
+ 0 /THIS ENDS THE LIST
+
+ PAGE
+\f/ DECMATE I REPLACEMENT LIST. /050 CJL
+
+DM1LIST,CLDMZAP / *CLDMZAP
+
+ DMINIT&177+JMSC /CLDMZAP,JMS DMINIT
+
+ SETBAUD / *SETBAUD
+
+ NOP /SETBAUD,NOP
+
+ DMI01 / *DMI01
+
+ DM234&177+TADC /DMI01, TAD DM234/(234)
+ DMI02; WCON0 /DMI02, WCON0
+ DMI03; NL0000 /DMI03, NL0000
+ DMI04; RACD /DMI04, RACD
+ DMI05; DMWASTE&177+ISZC /DMI05, ISZ DMWASTE
+ DMI06; DMI05&177+JMPC /DMI06, JMP DMI05
+ DMI07; DMWASTE&177+ISZC /DMI07, ISZ DMWASTE
+ DMI08; DMI07&177+JMPC /DMI08, JMP DMI07
+ DMI09; RTFL0 /DMI09, RTFL0
+ DMI10; DM2516&177+TADC /DMI10, TAD DM2516/(2516)
+ DMI11; DMSEND&177+JMSC /DMI11, JMS DMSEND
+ DMI12; TAD RATE /DMI12, TAD RATE
+ DMI13; DM2460&177+TADC /DMI13, TAD DM2460/(2460)
+ DMI14; DMSEND&177+JMSC /DMI14, JMS DMSEND
+ DMI15; DM3425&177+TADC /DMI15, TAD DM3425/(3425)
+ DMI16; DMSEND&177+JMSC /DMI16, JMS DMSEND
+ DMI17; RKRB0 /DMI17, RKRB0
+
+ DMISET / *DMISET
+
+ RTFL0 /DMISET, RTFL0
+
+ DMISKP / *DMISKP
+
+ RTSF0 /DMISKP, RTSF0
+\f DMIOUT / *DMIOUT
+
+ RTLS0 /DMIOUT, RTLS0
+
+ INSKIP / *INSKIP
+
+ RKSF0 /INSKIP, RKSF0
+
+ INREAD / *INREAD
+
+ RKRB0 /INREAD, RKRB0
+
+ COMWAIT / *COMWAIT
+
+ GETFLOW&177+JMSC /COMWAIT,JMS GETFLOW
+
+ NOWAIT / *NOWAIT
+
+ RTSF0 /NOWAIT, RTSF0
+ CMOUT1; OWAIT&177+JMPC /CMOUT1, JMP OWAIT
+
+ DM1AND / *DM1AND
+
+ AND377 /DM1AND, AND [377]
+
+ CMOUT4 / *CMOUT4
+
+ RTLS0 /CMOUT4, RTLS0
+
+ RINTEST / *RINTEST
+
+ RKSF0 /RINTEST,RKSF0
+
+ RINREAD / *RINREAD
+
+ RKRB0 /RINREAD,RKRB0
+ RINGT1; SKP /RINGT1, SKP
+
+ DM1AN2 / *DM1AN2
+
+ AND377 /DM1AN2, AND [377]
+
+ REMTSF / *REMTSF
+
+ RTSF0 /REMTSF, RTSF0
+
+ REMTLS / *REMTLS
+
+ RTLS0 /REMTLS, RTLS0
+
+ 0 /THIS ENDS THE LIST
+\f/ DECMATE I SECONDARY REPLACEMENT LIST /050 CJL
+
+DM1SEC, DMI02 / *DMI02
+
+ WCON1 /DMI02, WCON1
+ DMI03; NL4000 /DMI03, NL4000
+
+ DMI09 / *DMI09
+
+ RTFL1 /DMI09, RTFL1
+
+ DMI17 / *DMI17
+
+ RKRB1 /DMI17, RKRB1
+
+ DMISET / *DMISET
+
+ RTFL1 /DMISET, RTFL1
+
+ DMISKP / *DMISKP
+
+ RTSF1 /DMISKP, RTSF1
+
+ DMIOUT / *DMIOUT
+
+ RTLS1 /DMIOUT, RTLS1
+
+ INSKIP / *INSKIP
+
+ RKSF1 /INSKIP, RKSF1
+
+ INREAD / *INREAD
+
+ RKRB1 /INREAD, RKRB1
+
+ NOWAIT / *NOWAIT
+
+ RTSF1 /NOWAIT, RTSF1
+
+ CMOUT4 / *CMOUT4
+
+ RTLS1 /CMOUT4, RTLS1
+
+ RINTEST / *RINTEST
+
+ RKSF1 /RINTEST,RKSF1
+
+ RINREAD / *RINREAD
+
+ RKRB1 /RINREAD,RKRB1
+
+ REMTSF / *REMTSF
+
+ RTSF1 /REMTSF, RTSF1
+\f REMTLS / *REMTLS
+
+ RTLS1 /REMTLS, RTLS1
+
+ 0 /THIS ENDS THE LIST
+\f/ ONCE-ONLY TEXT MESSAGES. /024 CJL
+
+ FIELD BUFFLD%10 /FILE I/O BUFFER FIELD
+
+ *FILBUFFER /OVER FILE I/O BUFFER
+
+/ LOCAL PREFERENCE MESSAGE. /024 CJL
+
+/ USE SOMETHING APPROPRIATE HERE TO CUSTOMIZE KERMIT-12 TO YOUR MACHINE.
+
+/ THIS LOCATION SHOULD BE MAINTAINED SINCE IT IS DOCUMENTED TO BE HERE.
+
+ XLIST OFF
+ IFZERO GENMSG <
+ XLIST ON
+LCLMSG, *LCLMSG+40 /EMPTY HOLE FOR USER MESSAGE /039 CJL
+
+ XLIST OFF >
+ IFNZRO GENMSG <
+ IFNZRO LEDERLE <
+ XLIST ON
+LCLMSG, TEXT "%^T^HANKS TO: ^B^ILL ^S^MITH AND ^D^INGER ^M^ILLER%"
+
+ XLIST OFF >
+ IFNZRO UMSG <
+ XLIST ON
+LCLMSG, TEXT "%^I^NSERT LOCAL USER MESSAGE HERE!%^"
+
+ XLIST OFF >
+ IFZERO LEDERLE!UMSG <
+ XLIST ON
+LCLMSG, TEXT "^^^^^^^^^^^^^^^^^^^^^^"/DEFAULT IS NO MESSAGE
+
+ XLIST OFF >
+ IFNZRO LCLMSG+40-. <
+ XLIST ON
+ ZBLOCK LCLMSG+40-. /LEAVE PATCHING SPACE
+
+ XLIST OFF >
+ >
+ XLIST ON
+CLOSMSG,TEXT "^]^" /CPU TYPE CLOSING MESSAGE
+\f/ CPU IDENTIFICATION LIST; ALL MUST BE 5 WORDS LONG (EXCEPT LAST)./024 CJL
+
+CPULIST,TEXT "^U^NKNOWN" /00=UNKNOWN
+ TEXT "^PDP^-5^^" /01=PDP-5
+ TEXT "^PDP^-8^^" /02=PDP-8
+ TEXT "^PDP^-8/S" /03=PDP-8/S
+ TEXT "^LINC^-8^" /04=LINC-8
+ TEXT "^PDP^-8/I" /05=PDP-8/I
+ TEXT "^PDP^-8/L" /06=PDP-8/L
+ TEXT "^PDP^-12^" /07=PDP-12
+ TEXT "^PDP^-8/E" /10=PDP-8/E
+ TEXT "^PDP^-8/A" /11=PDP-8/A
+\f TEXT "6100^^^^^" /12=6100
+ TEXT "6120^" /13=6120; LAST CAN BE SHORT!
+CPUTMSG,TEXT "%^[C^PU TYPE IS: " /CPU TYPE MESSAGE
+DAYMSG, DAY%12^66+DAY+6060 /DAY MESSAGE
+ TEXT " "
+DMPOMSG,TEXT " ^[U^SING ^C^OMMUNICATIONS" /DECMATE PORT MESSAGE
+ TEXT " ^P^ORT^]"
+DMPPMSG,TEXT " ^[U^SING ^P^RINTER ^P^ORT^]^" /DECMATE SERIAL PORT MESSAGE
+\fINITMSG,TEXT "%^PS/8 PS/12 OS/8 OS/12 " /INITIAL MESSAGE
+ TEXT "OS/78 OS/278 K^ERMIT-12 ^V"
+INMSG2, VERSION%12^66+VERSION+6060 /VERSION DIGITS
+INMSG3, "^^100+REVISION /REVISION
+ TEXT " " /END OF MESSAGE
+ XLIST OFF
+ IFZERO MONTH-1 <
+ XLIST ON
+MONMSG, TEXT "^J^ANUARY ^" /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-2 <
+ XLIST ON
+MONMSG, TEXT "^F^EBRUARY " /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-3 <
+ XLIST ON
+MONMSG, TEXT "^M^ARCH ^" /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-4 <
+ XLIST ON
+MONMSG, TEXT "^A^PRIL ^" /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-5 <
+ XLIST ON
+MONMSG, TEXT "^M^AY ^" /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-6 <
+ XLIST ON
+MONMSG, TEXT "^J^UNE " /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-7 <
+ XLIST ON
+MONMSG, TEXT "^J^ULY " /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-10 <
+ XLIST ON
+MONMSG, TEXT "^A^UGUST " /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-11 <
+ XLIST ON
+MONMSG, TEXT "^S^EPTEMBER ^" /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-12 <
+ XLIST ON
+MONMSG, TEXT "^O^CTOBER ^" /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-13 <
+ XLIST ON
+MONMSG, TEXT "^N^OVEMBER " /MONTH MESSAGE
+ XLIST OFF >
+ IFZERO MONTH-14 <
+ XLIST ON
+MONMSG, TEXT "^D^ECEMBER " /MONTH MESSAGE
+ XLIST OFF >
+ IFNZRO MONMSG+7-. <
+ XLIST ON
+
+ ZBLOCK MONMSG+7-. /EMPTY SPACE FOR ALIGNMENT
+
+ XLIST OFF >
+ XLIST ON
+\fTHLPMSG,TEXT "%^T^YPE ^HELP<CR>^ FOR HELP%^" /TYPE HELP MESSAGE
+YEARMSG,TEXT "19" /YEAR MESSAGE
+ YEAR%12^66+YEAR+6060 /YEAR DIGITS
+ TEXT "^" /END OF MESSAGE
+\f/ CPU-SPECIFIC PROMPT LIST. /024 CJL
+
+CPUPRMP,TEXT "??^>^^^" /UNKNOWN
+ TEXT "5^>^^^^" /PDP-5
+ TEXT "8^>^^^^" /PDP-8
+ TEXT "8^/S>^^" /PDP-8/S
+ TEXT "LINC-8>" /LINC-8
+ TEXT "8^/I>^^" /PDP-8/I
+ TEXT "8^/L>^^" /PDP-8/L
+ TEXT "12^>^^^" /PDP-12
+ TEXT "8^/E>^^" /PDP-8/E
+ TEXT "8^/A>^^" /PDP-8/A
+ TEXT "78^>^^^" /6100
+ TEXT "278^>^^" /6120
+\f/ CPU-SPECIFIC IDENTIFICATION LIST. /025 CJL
+
+CPUIDLS,TEXT "^U^NKNOWN" /UNKNOWN
+ TEXT "^PDP^-5^^" /PDP-5
+ TEXT "^PDP^-8^^" /PDP-8
+ TEXT "^PDP^-8/S" /PDP-8/S
+ TEXT "^LINC^-8^" /LINC-8
+ TEXT "^PDP^-8/I" /PDP-8/I
+ TEXT "^PDP^-8/L" /PDP-8/L
+ TEXT "^PDP^-12^" /PDP-12
+ TEXT "^PDP^-8/E" /PDP-8/E
+ TEXT "^PDP^-8/A" /PDP-8/A
+\f TEXT "^VT^-78^^" /VT-78
+ TEXT "^DEC^MATE" /6120
+\f FIELD MSGFLD%10 /MESSAGE FIELD
+
+ *FLD1ADR /PERMANENT LOAD ADDRESS /046 CJL
+ /TEXT MESSAGES LOAD HERE/046 CJL
+
+ABMSG, TEXT "%^F^ILE ^A^BORT%^" /FILE ABORT MESSAGE
+CMERMSG,TEXT "?^I^NVALID COMMAND^" /COMMAND ERROR MESSAGE
+CONNMSG,TEXT "%(^C^ONNECTING TO HOST, TYPE " /FIRST CONNECT MESSAGE
+CONTMSG,TEXT "^C^ONTROL-^" /CONTROL CHARACTER MESSAGE
+\fCON2MSG,TEXT " ^C^ TO RETURN TO ^" /BRIDGING CONNECT MESSAGE
+CON3MSG,TEXT ")%^" /FINAL CONNECT MESSAGE
+CPUMSG, ZBLOCK 5 /CPU ID MESSAGE GOES HERE
+/CRLF, TEXT "%" /<CR>, <LF> MESSAGE
+DNERMSG,TEXT "?^E^RROR IN DEVICE NAME" /DEVICE NAME ERROR MESSAGE
+DSFLMSG,TEXT "?^D^ISK FULL!" /DISK OUT OF ROOM ERROR MESSAGE
+FCLEMSG,TEXT "?^E^RROR CLOSING FILE" /FILE CLOSE ERROR MESSAGE
+\fFNERMSG, TEXT "?^E^RROR IN FILE NAME" /FILE NAME ERROR MESSAGE
+FRECMSG,TEXT "^R^EC: ^" /RECEIVING FILE MESSAGE
+FSENMSG,TEXT "^S^END: ^" /SENDING FILE MESSAGE
+FSERMSG,TEXT "?^F^ILE NAME SYNTAX ERROR" /FILE NAME ERROR MESSAGE
+\fHELPMSG,TEXT "%^S^UPPORTED COMMANDS ARE:%%" /HELP MESSAGE
+ TEXT "^CONNECT^ (TO REMOTE SYSTEM) %"
+ TEXT "^SEND DEV:FILNAM.EX^ %"
+\f TEXT "^RECEIVE DEV:^ (FILENAME AND EXTENSION ^NOT^ ALLOWED)%"
+ TEXT "^GET DEV:FILNAM.EX^%"
+ TEXT "^FINISH^ (SERVER)%"
+\f TEXT "^EXIT^ (TO OPERATING SYSTEM) %"
+ TEXT "^HELP^ (THIS MESSAGE)%"
+ TEXT "%^E^SCAPE CHARACTER: "
+KERRMSG,TEXT "%^K^EYBOARD INPUT ERROR!%" /KEYBOARD ERROR MESSAGE
+
+ CRLF= .-1 /<CR>, <LF> MESSAGE
+\fNOFINIS,TEXT "?^U^NABLE TO TELL HOST THAT " /FINISH ERROR MESSAGE
+ TEXT "SESSION IS FINISHED"
+NOTFND, TEXT "?^U^NABLE TO LOCATE FILE^" /FILE NOT FOUND MESSAGE
+PRMTMSG,TEXT "^K^ERMIT-^" /STATIC PORTION OF PROMPT MESSAGE
+PROMID, ZBLOCK 23 /MODIFIED PORTION OF PROMPT MESSAGE
+PRMT2, TEXT "^K12>" /PHPH
+RERRMSG,TEXT "?^R^ECEIVE FAILURE^" /GENERAL RECEIVE FAILURE MESSAGE
+\fRFLNMSG,TEXT "?^E^RROR IN RECEIVED FILE NAME"/RECEIVED NAME ERROR MESSAGE
+ TEXT "^"
+RHFEMSG,TEXT "^U^NABLE TO RECEIVE - HANDLER" /HANDLER FETCH ERROR MESSAGE
+ TEXT " ERROR^"
+\fRIDEMSG,TEXT "?^U^NABLE TO RECEIVE -" /DIRECTORY FULL ERROR MESSAGE
+ TEXT " INSUFFICIENT DIRECTORY SPACE"
+RIERMSG,TEXT "%^R^EMOTE LINE INPUT ERROR!%^" /REMOTE LINE ERROR MESSAGE
+\fRPERMSG,TEXT "?^U^NABLE TO RECEIVE LATEST " /LATEST PACKET ERROR MESSAGE
+ TEXT "PACKET^"
+SDERMSG,TEXT "?^U^NABLE TO SEND - DIRECTORY "/DIRECTORY INPUT ERROR MESSAGE
+ TEXT "ERROR"
+SHFEMSG,TEXT "?^U^NABLE TO SEND - HANDLER " /HANDLER FETCH ERROR MESSAGE
+ TEXT "ERROR"
+\fSNDEMSG,TEXT "?^U^NABLE TO SEND" /GENERAL SEND ERROR MESSAGE
+UPERMSG,TEXT "?^U^NABLE TO RECEIVE - DATA " /RECEIVED DATA ERROR MESSAGE
+ TEXT "ERROR"
+
+ $ /THAT'S ALL FOLK!
projects / pdp8.git / commitdiff