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BB-M081Q-SM
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monitor-sources/ttysrv.mac
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; UPD ID= 8666, RIP:<7.MONITOR>TTYSRV.MAC.16, 24-Feb-88 18:45:22 by RASPUZZI
;More of TCO 7.1230 - Fix misguidance in TTMSG% comments.
; UPD ID= 8659, RIP:<7.MONITOR>TTYSRV.MAC.15, 22-Feb-88 12:22:20 by GSCOTT
;More of TCO 7.1230 - Remove stray angle brackets, update TTMSG comments.
; UPD ID= 8657, RIP:<7.MONITOR>TTYSRV.MAC.14, 22-Feb-88 11:10:35 by GSCOTT
;TCO 7.1075 - Table of contents.
; UPD ID= 8656, RIP:<7.MONITOR>TTYSRV.MAC.13, 22-Feb-88 11:07:39 by GSCOTT
;More of TCO 7.1230 - Correct problem with previous edit, fix TDCALL macro
; to detect a mistaken lower case "d" or "s".
; UPD ID= 8652, RIP:<7.MONITOR>TTYSRV.MAC.12, 18-Feb-88 20:45:26 by GSCOTT
;TCO 7.1230 - Default CTY to type contained in CTYTY.
; UPD ID= 8637, RIP:<7.MONITOR>TTYSRV.MAC.11, 11-Feb-88 18:55:36 by GSCOTT
;TCO 7.1218 - Update copyright date.
; UPD ID= 8465, RIP:<7.MONITOR>TTYSRV.MAC.10, 5-Feb-88 15:56:34 by GSCOTT
;More TCO 7.1210 - Correct TTLOKB.
; UPD ID= 8449, RIP:<7.MONITOR>TTYSRV.MAC.9, 4-Feb-88 16:44:17 by GSCOTT
;TCO 7.1210 - Set CTYSTK, TTYBBO, and TTYNTB normally not dumpable.
; UPD ID= 184, RIP:<7.MONITOR>TTYSRV.MAC.8, 21-Oct-87 17:25:58 by RASPUZZI
;TCO 7.1076 - Add support for cluster sendall. Have TTMSG% call into
; CLTMSG when it has a sendall for another node besides the
; local node. Also rework how GETSAL makes the sendall header.
; UPD ID= 156, RIP:<7.MONITOR>TTYSRV.MAC.7, 13-Oct-87 14:38:27 by RASPUZZI
;Last of TCO 7.1070 - Remove SNTIM too.
; UPD ID= 155, RIP:<7.MONITOR>TTYSRV.MAC.6, 13-Oct-87 14:34:39 by RASPUZZI
;More of TCO 7.1070 - Forgot to rip out some other code at TTINIT.
; UPD ID= 153, RIP:<7.MONITOR>TTYSRV.MAC.5, 13-Oct-87 14:26:56 by RASPUZZI
;TCO 7.1070 - Remove routine TTYCHK from scheduler overhead. It wastes time
;and does nothing useful these days.
; UPD ID= 113, RIP:<7.MONITOR>TTYSRV.MAC.4, 15-Sep-87 18:55:28 by GSCOTT
; TCO 7.1056 - Allow TTMSG with -2 in ac 1 to go to 20F only.
; UPD ID= 54, RIP:<7.MONITOR>TTYSRV.MAC.3, 27-Jul-87 16:15:36 by MCCOLLUM
;TCO 7.1024 - Change call to CTHSPS to CTHOBS
; *** Edit 7435 to TTYSRV.MAC by GSCOTT on 3-Apr-87, for SPR #21488
; Enable control of DTR on RSX20F lines by MTOPR functions .MOHUP and .MOUHU
; and raise and lower DTR when a TTY is opened and closed if it's not CTRLTT
; *** Edit 7390 to TTYSRV.MAC by RASPUZZI on 13-Nov-86
; Fix minor problem with 7342 - We're always sending an XON and not waiting for
; the line to reach the threshold.
; *** Edit 7342 to TTYSRV.MAC by RASPUZZI on 28-Jul-86, for SPR #20938
; Get rid of a race condition between TTYSRV and RSXSRV by putting the XON/XOFF
; logic in TTCH7 (TTYSRV) after chars have been moved from TTBBUF to their
; individual line buffers.
; *** Edit 7328 to TTYSRV.MAC by MCCOLLUM on 24-Jun-86, for SPR #21297
; Check bit SF%LAT for allowing LAT terminal logins instead of SF%RMT
; *** Edit 7310 to TTYSRV.MAC by RASPUZZI on 2-Jun-86
; Prevent SKDPF1 BUGHLTs by making TTNTM1, TTSNTF & FENTM resident routines
; *** Edit 7256 to TTYSRV.MAC by MRASPUZZI on 11-Mar-86, for SPR #20978
; Clear inhibit bit and receive/ref user msgs bit on job startup for terminals
; *** Edit 7200 to TTYSRV.MAC by MELOHN on 18-Nov-85 (TCO 6.1.1560)
; Make CTERM respond faster to ^O. Remove Edit 7167 because it brakes CTMSTR.
; *** Edit 7193 to TTYSRV.MAC by WONG on 14-Nov-85
; Fix undefined symbol (LPTTIM) when LPTN=0
; Edit 7167 to TTYSRV.MAC by TBOYLE on 21-Oct-85, for SPR #19350
; Fix double prompts and multiple linefeeds at TCI,TCIB,TTSMOD.
; Edit 7141 to TTYSRV.MAC by PRATT on 28-Aug-85, for SPR #17825 (TCO 6.1.1531)
; Fix half-duplex line count never incrementing problem.
; Edit 7119 to TTYSRV.MAC by PRATT on 8-Aug-85 (TCO 6-1-1509)
; Fix problem with NTINF error code not being set up in T1.
; UPD ID= 2248, SNARK:<6.1.MONITOR>TTYSRV.MAC.62, 19-Jun-85 20:47:55 by MELOHN
;TCO 6.1.1465 - Fix problems with CTERM and line wrapping/data mode.
; UPD ID= 2020, SNARK:<6.1.MONITOR>TTYSRV.MAC.61, 28-May-85 12:10:20 by MCCOLLUM
;TCO 6.1.1238 - Fix more BUG. documentation
; UPD ID= 1997, SNARK:<6.1.MONITOR>TTYSRV.MAC.60, 23-May-85 14:23:18 by MELOHN
;More of previous edit.
; UPD ID= 1993, SNARK:<6.1.MONITOR>TTYSRV.MAC.59, 17-May-85 18:04:13 by MELOHN
;TCO 6.1.1398 - Make LAT lines remote.
; UPD ID= 1937, SNARK:<6.1.MONITOR>TTYSRV.MAC.58, 7-May-85 22:54:02 by MCCOLLUM
;TCO 6.1.1238 - Fix more BUG. documentation
; UPD ID= 1915, SNARK:<6.1.MONITOR>TTYSRV.MAC.57, 6-May-85 20:12:52 by GROSSMAN
;TCO 6.1.1363 - Preserve T2 in ASGSHT on error returns.
; UPD ID= 1832, SNARK:<6.1.MONITOR>TTYSRV.MAC.56, 26-Apr-85 09:44:13 by MCCOLLUM
;TCO 6.1.1238 - Fix more BUG. documentation
; UPD ID= 1798, SNARK:<6.1.MONITOR>TTYSRV.MAC.55, 23-Apr-85 13:36:27 by MCCOLLUM
;TCO 6.1.1238 - Fix more BUG. documentation
; UPD ID= 1775, SNARK:<6.1.MONITOR>TTYSRV.MAC.54, 22-Apr-85 13:20:46 by MCCOLLUM
;TCO 6.1.1238 - Fix BUG. documentation
; UPD ID= 1685, SNARK:<6.1.MONITOR>TTYSRV.MAC.53, 25-Mar-85 16:16:13 by MELOHN
;Change previous edit to set same line types to NO parity
; UPD ID= 1656, SNARK:<6.1.MONITOR>TTYSRV.MAC.52, 19-Mar-85 17:32:20 by MELOHN
;TCO 6.1.1277 - LAT, CTERM, NRT lines don't do parity.
; UPD ID= 1584, SNARK:<6.1.MONITOR>TTYSRV.MAC.51, 5-Mar-85 10:33:58 by MOSER
;TCO 6.1.1228 - ITRLGO from TTCKSP
; UPD ID= 1421, SNARK:<6.1.MONITOR>TTYSRV.MAC.50, 29-Jan-85 11:38:10 by PAETZOLD
;TCO 6.1.1159 - Add TVT dependant call in SETOBF.
; UPD ID= 1288, SNARK:<6.1.MONITOR>TTYSRV.MAC.49, 8-Jan-85 14:23:59 by MCCOLLUM
;TCO 6.1.1119 - Add OKINTs in error returns in SALLIN.
; UPD ID= 1219, SNARK:<6.1.MONITOR>TTYSRV.MAC.48, 18-Dec-84 12:49:18 by TBOYLE
;TCO 6.1.1092 - Fix jobs hung in LOGOUT - Remove TTDOBE from TTHNGU
; UPD ID= 1099, SNARK:<6.1.MONITOR>TTYSRV.MAC.47, 19-Nov-84 15:31:25 by MELOHN
;TCO 6.1.1059 - Fix TDCALL where CTERM was trying to deallocate TTY on detach.
;TCO 6.1.1058 - Eliminate TDCALL CTHLGO, and replace it with CTHNGU.
; UPD ID= 961, SNARK:<6.1.MONITOR>TTYSRV.MAC.46, 5-Nov-84 19:52:59 by PRATT
;TCO 6.1.1032 - Make TTYSRV compile independently:
; Change TTYASN to TTYASG since it conflicts with global FILMSC routine
; Change INTRAN to DINTRN since it conflicts with global in STG
; Remove traces of DC, DZ, RP, and KCFLG code
; In cases where DC, DZ, or RP was the only line type in a TDCALL,
; the TDCALL remains, but has been commented out.
; Change TDCALx's to always assemble for all known line types.
; If a line type is not actually configured, and no default action
; is to be taken, a BADTTY bughlt will result by jumping to the
; dummy symbol in STG.
; Make some labels global so that NRTSRV and RSXSRV can get them
; Move some resident storage defs to STG (TT1LIN, and send all stuff)
; Put dummy symbols for NRTSRV and RSXSRV at end of TTYSRV
; Put an TNXEND/END in the file
; Remove big repeat 0 code at end of the old TTYSRV
; Put TDCALx definitions back in TTYSRV
; UPD ID= 940, SNARK:<6.1.MONITOR>TTYSRV.MAC.45, 1-Nov-84 14:48:32 by PRATT
;Merge M60: edits 4899 and 4951
; UPD ID= 4951, SNARK:<6.MONITOR>TTYSRV.MAC.159, 17-Oct-84 19:03:26 by TBOYLE
;TCO 6.2251 - TTXONF, Force XON to FE at .STPAR, J0TC60, TTYDED, remove
; TTXFF maneuvers at TTCBF7 because only TTXONP is used, Change code at
; J0TC60 to test for TTSFG as well as TTRXF.
; UPD ID= 4899, SNARK:<6.MONITOR>TTYSRV.MAC.155, 8-Oct-84 05:07:19 by TBOYLE
;TCO 6.2238 - handle speed setting properly.
; UPD ID= 933, SNARK:<6.1.MONITOR>TTYSRV.MAC.44, 28-Oct-84 11:33:24 by PRATT
;TCO 6.1.1022 - Add code for finding remote hostname for NTINF%
; UPD ID= 795, SNARK:<6.1.MONITOR>TTYSRV.MAC.40, 10-Sep-84 19:30:01 by WEISBACH
;LAT terminals user ^A for default PAUSE/UNPAUSE (in TTSET).
; UPD ID= 787, SNARK:<6.1.MONITOR>TTYSRV.MAC.39, 4-Sep-84 15:35:38 by WEISBACH
;Merge in M60:edit 4763.
; UPD ID= 4763, SNARK:<6.MONITOR>TTYSRV.MAC.153, 27-Aug-84 17:44:48 by TBOYLE
;TCO 6.2204 (QAR 706053) Pass line# to SALWAT. Have SALWAT convert to DD ptr.
; UPD ID= 764, SNARK:<6.1.MONITOR>TTYSRV.MAC.38, 27-Aug-84 15:55:42 by PRATT
;TCO 6.1.1010 - Make TTANDV assemble independently of TTYSRV
; UPD ID= 742, SNARK:<6.1.MONITOR>TTYSRV.MAC.37, 17-Aug-84 09:52:38 by PAETZOLD
;Even more TCO 6.1733 - no more NTTNVT.
; UPD ID= 740, SNARK:<6.1.MONITOR>TTYSRV.MAC.36, 13-Aug-84 14:19:38 by WEISBACH
;Merge in M60: edits 4630,4634,4645, and 4663
; UPD ID= 4663, SNARK:<6.MONITOR>TTYSRV.MAC.151, 7-Aug-84 22:38:02 by PAETZOLD
;More TCO 6.1733 - no more NTTNVT.
; UPD ID= 4645, SNARK:<6.MONITOR>TTYSRV.MAC.150, 1-Aug-84 17:54:07 by TBOYLE
;TCO 6.2158 - Fix the check for send-all in progress at TTCBF6-2.
; UPD ID= 4634, SNARK:<6.MONITOR>TTYSRV.MAC.149, 30-Jul-84 17:54:11 by MURPHY
;TCO 6.2155 - Make mode word returned by TTRMOD correct.
; UPD ID= 4630, SNARK:<6.MONITOR>TTYSRV.MAC.148, 30-Jul-84 09:41:11 by HAUDEL
;TCO 6.2130 - Check for CTYLNO before using the J0TCOT scheduler test.
;Add a bugchk (CTYSTK) to indicate that J0TCOT has reloaded the Front-End.
; UPD ID= 712, SNARK:<6.1.MONITOR>TTYSRV.MAC.35, 26-Jul-84 08:30:22 by MCINTEE
;Add CTERM - NRT support
; UPD ID= 705, SNARK:<6.1.MONITOR>TTYSRV.MAC.34, 24-Jul-84 15:30:09 by MCINTEE
;Modify echoing for CTERM - remove some now unneeded CTERM TDCALLs
; UPD ID= 685, SNARK:<6.1.MONITOR>TTYSRV.MAC.33, 16-Jul-84 10:51:25 by MCINTEE
;Add CTERM TDCALL to STTYP% jsys code, add CTERM TDCALL to STRTOU
; UPD ID= 651, SNARK:<6.1.MONITOR>TTYSRV.MAC.32, 2-Jul-84 14:59:12 by MCINTEE
;CTERM device dependent call changes.
; UPD ID= 630, SNARK:<6.1.MONITOR>TTYSRV.MAC.31, 18-Jun-84 13:59:05 by WEISBACH
; Add LAT terminals to device dependent call in SETOBF to make LAT
; terminals high speed output devices.
; Fix typo in TDCALL in routine TTHNGU for LAT terminals.
; UPD ID= 623, SNARK:<6.1.MONITOR>TTYSRV.MAC.30, 13-Jun-84 13:46:45 by MCINTEE
;remove call to CTHSET
; UPD ID= 576, SNARK:<6.1.MONITOR>TTYSRV.MAC.29, 29-May-84 14:18:07 by WEISBACH
;Add check for LAT Host terminal to CTYMCB so NRTREL does not deallocate a
; LAT terminal's TDB.
; UPD ID= 574, SNARK:<6.1.MONITOR>TTYSRV.MAC.28, 29-May-84 10:26:48 by MCINTEE
;Remove references to newly nonexistent CTERM TDCALLs.
; UPD ID= 544, SNARK:<6.1.MONITOR>TTYSRV.MAC.27, 23-May-84 07:49:17 by MCINTEE
;Merge from M60:
; UPD ID= 4177, SNARK:<6.MONITOR>TTYSRV.MAC.147, 7-May-84 13:31:27 by LOMARTIRE
;More TCO 6.2047 - Fix all possible cases of NOSKED/OKSKED at PI 6 from TTYDED
; UPD ID= 4165, SNARK:<6.MONITOR>TTYSRV.MAC.146, 1-May-84 14:40:42 by LOMARTIRE
;TCO 6.2047 - Prevent KPALVH by only doing NOSKED/OKSKED at PI 7 in TTYDED
; UPD ID= 4156, SNARK:<6.MONITOR>TTYSRV.MAC.145, 30-Apr-84 16:42:46 by LOMARTIRE
;TCO 6.2030 - Teach TLINK% to use fork controlling terminal for TTY: if one
; UPD ID= 481, SNARK:<6.1.MONITOR>TTYSRV.MAC.26, 30-Apr-84 09:40:51 by WEISBACH
;~6.0 - Add LAT Host terminal type.
; UPD ID= 404, SNARK:<6.1.MONITOR>TTYSRV.MAC.25, 21-Mar-84 15:02:06 by MCINTEE
;More TCO 6.1959 - Allow all two character interrupt sequences
; UPD ID= 382, SNARK:<6.1.MONITOR>TTYSRV.MAC.24, 12-Mar-84 14:58:50 by MCINTEE
;Fix NRT bug - in TTYDE0
; UPD ID= 356, SNARK:<6.1.MONITOR>TTYSRV.MAC.23, 27-Feb-84 09:13:10 by MCINTEE
;Merge from M60:
; UPD ID= 3764, SNARK:<6.MONITOR>TTYSRV.MAC.143, 27-Feb-84 08:56:43 by MCINTEE
;More TCO 6.1959 - Account for failure return for .MORTC - routine TTERED.
; UPD ID= 3730, SNARK:<6.MONITOR>TTYSRV.MAC.142, 22-Feb-84 14:00:04 by MCCOLLUM
;TCO 6.1979 - Allow prived users to send to lines with TT%NUM set
; UPD ID= 3612, SNARK:<6.MONITOR>TTYSRV.MAC.141, 1-Feb-84 08:50:41 by MCINTEE
;TCO 6.1959 - Add support for two chracter escape sequences.
; UPD ID= 335, SNARK:<6.1.MONITOR>TTYSRV.MAC.22, 16-Feb-84 17:45:17 by PRATT
;Call TVMSNT, not TVSMNT at TTMSH1 plus lots
; UPD ID= 331, SNARK:<6.1.MONITOR>TTYSRV.MAC.21, 13-Feb-84 14:34:00 by MCINTEE
;Fix SETOBF so that NRT gets its rightful buffer
; UPD ID= 292, SNARK:<6.1.MONITOR>TTYSRV.MAC.20, 16-Jan-84 08:32:39 by MCINTEE
;Merge from M60:
; UPD ID= 3396, SNARK:<6.MONITOR>TTYSRV.MAC.139, 3-Jan-84 10:38:14 by PRATT
;More TCO 6.1796 - Add the code that checks TT%NTM and TT%NUM
; UPD ID= 3318, SNARK:<6.MONITOR>TTYSRV.MAC.138, 14-Dec-83 14:37:13 by PRATT
;TCO 6.1796 - Add TT%NTM and TT%NUM code for TLINK and TTMSG
; UPD ID= 201, SNARK:<6.1.MONITOR>TTYSRV.MAC.19, 27-Sep-83 09:09:36 by PAETZOLD
;Remove TCO 5.1691 - STRTTO Q1 smasher mousetrap
; UPD ID= 186, SNARK:<6.1.MONITOR>TTYSRV.MAC.18, 2-Aug-83 09:23:39 by MCINTEE
;TCO 6.1725 - Make TTPPCS CALL ULKTTY when returning TTYX02 error
;TCO 6.1689 - Move fork tables to extended section
; Reference FKINT and FKSTA2 via DEFSTR
; UPD ID= 178, SNARK:<6.1.MONITOR>TTYSRV.MAC.17, 26-Jul-83 16:27:00 by PAETZOLD
;TCO 6.1733 - No more NCP so no more NVTs. Also create real TTYSDN.
; UPD ID= 2413, SNARK:<6.MONITOR>TTYSRV.MAC.133, 3-May-83 16:26:42 by COBB
;TCO 6.1639 - ?s in PRINTX messages...
; UPD ID= 2349, SNARK:<6.MONITOR>TTYSRV.MAC.132, 26-Apr-83 21:30:08 by MCLEAN
; TCO 6.1626 BYTE POINTER IS LOST IF SENDALL LOCK IS LOCKED.
; UPD ID= 116, SNARK:<6.1.MONITOR>TTYSRV.MAC.14, 26-Apr-83 11:49:27 by MCINTEE
;Remove RS%SE0 from TTYASC's call to ASGRES
; UPD ID= 106, SNARK:<6.1.MONITOR>TTYSRV.MAC.13, 18-Apr-83 13:13:20 by PAETZOLD
;TCO 6.1557 - TCP Merge
; UPD ID= 2073, SNARK:<6.MONITOR>TTYSRV.MAC.130, 24-Mar-83 12:44:02 by HALL
;TCO 6.1502 - Allow resident free space in extended section
; Add EA.ENT to TTEMES
; UPD ID= 84, SNARK:<6.1.MONITOR>TTYSRV.MAC.11, 22-Mar-83 10:32:09 by LEAPLINE
;TCO 6.1561 FIX TEST FOR TTSHU IN CKSALL
; UPD ID= 2038, SNARK:<6.MONITOR>TTYSRV.MAC.128, 20-Mar-83 12:44:27 by HALL
;TCO 6.1502 - Allow resident free space in extended section
; Allocate dynamic data from extended section.
; Use one-word global byte pointers to point to sendall buffer and
; I/O buffers, which must be in section 0 for the DTE.
; Change handling of end of I/O buffers, and definition of WRPMSK,
; to reflect use of one-word globals
; Make everything run in section 1
; UPD ID= 1975, SNARK:<6.MONITOR>TTYSRV.MAC.127, 11-Mar-83 00:33:59 by MOSER
;TCO 5.1510 WAKE UP ON CR FOR HALF DUPLEX LINES
; UPD ID= 1957, SNARK:<6.MONITOR>TTYSRV.MAC.126, 10-Mar-83 14:27:17 by MCINTEE
;TCO 6.1502 - Change MOVEIs to MOVXs in previous edit
; UPD ID= 1944, SNARK:<6.MONITOR>TTYSRV.MAC.125, 9-Mar-83 10:08:13 by HALL
;TCO 6.1502 - Allow free space in extended section
; Fix caller to ASGRSB, too
; UPD ID= 1943, SNARK:<6.MONITOR>TTYSRV.MAC.124, 9-Mar-83 07:44:51 by HALL
;TCO 6.1502 - Allow free space in extended section
; Make the rest of the callers set RS%SE0 (sigh)
; UPD ID= 1941, SNARK:<6.MONITOR>TTYSRV.MAC.123, 8-Mar-83 11:41:42 by HALL
;TCO 6.1502 - Allow free space in extended section
; Make INICTY set RS%SE0
; UPD ID= 1883, SNARK:<6.MONITOR>TTYSRV.MAC.122, 27-Feb-83 22:09:45 by MURPHY
; Set page mode from bit in TTYPE1.
; UPD ID= 1819, SNARK:<6.MONITOR>TTYSRV.MAC.121, 17-Feb-83 16:33:30 by WEAVER
;MORE TCO 6.1485 - Clear TT%XFF after we have called TTXONA
; UPD ID= 1734, SNARK:<6.MONITOR>TTYSRV.MAC.120, 1-Feb-83 18:20:02 by WEAVER
;TCO 6.1485 - Fix TCO 6.1480, put TT%XFF in dynamic storage block.
; UPD ID= 1710, SNARK:<6.MONITOR>TTYSRV.MAC.119, 27-Jan-83 22:57:33 by WEAVER
;TCO 6.1480 - Create bit TT%XFF to force XOFF/XON status to front end, set
;this bit when we receive 2 consecutive ^C's or a ^O.
; UPD ID= 1622, SNARK:<6.MONITOR>TTYSRV.MAC.118, 6-Jan-83 15:54:43 by CDUNN
;TCO 6.1444 - Fix the fix of the bug introduced by TCO 6.1390. Move the label
;TTCHN1 up one so all cases work.
; UPD ID= 1612, SNARK:<6.MONITOR>TTYSRV.MAC.117, 3-Jan-83 15:30:06 by LOMARTIRE
;TCO 6.1433 - Add code for ^ESET [NO] LOGINS-ALLOWED DECNET-LINES command
; UPD ID= 1598, SNARK:<6.MONITOR>TTYSRV.MAC.116, 29-Dec-82 10:47:20 by DONAHUE
;TCO 6.1417 - Prevent OKSKBG at SALLI2
; UPD ID= 1592, SNARK:<6.MONITOR>TTYSRV.MAC.115, 28-Dec-82 14:37:50 by GUNN
; Fix bug introduced by TCO 6.1390 at TTCHN1, T2 contained dynamic ptr
; rather than static
; UPD ID= 1571, SNARK:<6.MONITOR>TTYSRV.MAC.114, 27-Dec-82 08:29:40 by GRANT
;TCO 6.1426 - check for CTY or MCB TTY when processing an NVT's escape character
; UPD ID= 1525, SNARK:<6.MONITOR>TTYSRV.MAC.113, 9-Dec-82 15:58:04 by HAUDEL
;MORE TCO 6.1266 - Filter multiple or single carriage returns.
; UPD ID= 1484, SNARK:<6.MONITOR>TTYSRV.MAC.112, 29-Nov-82 13:35:18 by MURPHY
;TCO 6.1390 - Shut off 20F line if more than 2 noise characters in one second.
; UPD ID= 1473, SNARK:<6.MONITOR>TTYSRV.MAC.111, 23-Nov-82 10:25:15 by GRANT
;TCO 5.1.1109 - Make carrier off, @ATT, and @UNA of a SETHOSTed line work
; UPD ID= 1463, SNARK:<6.MONITOR>TTYSRV.MAC.110, 18-Nov-82 13:47:20 by MOSER
;TCO 6.1372 - ALWAYS RETURN NUMBER OF BYTE FOR SOBE
; UPD ID= 1402, SNARK:<6.MONITOR>TTYSRV.MAC.108, 2-Nov-82 08:28:13 by COBB
;TCO 6.1343 - Reset TTPFK when deassigning permanent lines [TTYDE3]
; UPD ID= 1351, SNARK:<6.MONITOR>TTYSRV.MAC.107, 18-Oct-82 16:35:09 by PAETZOLD
;TCO 6.1320 - Make sure SAVELN in TTYDEA happens even after the TDCALL
; UPD ID= 1349, SNARK:<6.MONITOR>TTYSRV.MAC.106, 18-Oct-82 13:34:13 by COBB
;TCO 6.1315 - In TTYASC, don't let user assign TTY being CRJOB'd on
; UPD ID= 1331, SNARK:<6.MONITOR>TTYSRV.MAC.105, 13-Oct-82 06:51:31 by GRANT
;TCO 6.1309 - In GETSAL, change MOVEI to HRROI so disabled TTMSG% has proper format
;TCO 6. XXX - MOVE DEFINITIONS INTO TTYDEF.UNV
;TCO 6. XXX - CHANGES FOR CTERM
; UPD ID= 1258, SNARK:<6.MONITOR>TTYSRV.MAC.104, 29-Sep-82 08:20:48 by GRANT
;Typo in previous edit
; UPD ID= 1253, SNARK:<6.MONITOR>TTYSRV.MAC.103, 28-Sep-82 08:45:16 by GRANT
;TCO 5.1.1071 - limit the char. count given to TTMSG, this prevents overflowing
;the 6-bit field TSALC
; UPD ID= 1243, SNARK:<6.MONITOR>TTYSRV.MAC.102, 24-Sep-82 16:31:08 by PAETZOLD
;More TCO 6.1266 - fix a bug
; UPD ID= 1183, SNARK:<6.MONITOR>TTYSRV.MAC.101, 14-Sep-82 19:51:40 by PAETZOLD
;TCO 6.1266 - Do not allow control characters in non-prived TTMSGs
; UPD ID= 1176, SNARK:<6.MONITOR>TTYSRV.MAC.100, 14-Sep-82 10:53:07 by PAETZOLD
;TCO 6.1263 - Change TYLMD defstr so that it doesn't conflict with TTOCN
; Delete pre release 5 edit history
; UPD ID= 1100, SNARK:<6.MONITOR>TTYSRV.MAC.99, 19-Aug-82 17:52:28 by LEACHE
;TCO 6.1232 Change TTYX01 to TTYX03
; UPD ID= 1089, SNARK:<6.MONITOR>TTYSRV.MAC.98, 17-Aug-82 19:56:01 by LEACHE
;TCO 6.1229 - Make TTMSH1 clear SEND-ALL lock on insufficient privileges
; UPD ID= 1001, SNARK:<6.MONITOR>TTYSRV.MAC.97, 21-Jul-82 09:19:10 by WALLACE
;TCO 6.1105 - Remove conditional assembly of CTS Dynamic Data symbols
; Use XBLTA in INITDB
; UPD ID= 983, SNARK:<6.MONITOR>TTYSRV.MAC.96, 9-Jul-82 11:59:32 by PAETZOLD
; TCO 5.1.1044 - Move TTXOFC to avoid stopping lines allready stopped
; UPD ID= 937, SNARK:<6.MONITOR>TTYSRV.MAC.95, 15-Jun-82 14:21:27 by WALLACE
;TCO 6.1170 - In routine TCOUBF, if the call to LCKTTY fails, then get
; the internal line number from saved AC (Q1) rather than off of the
; stack.
; UPD ID= 933, SNARK:<6.MONITOR>TTYSRV.MAC.94, 14-Jun-82 19:51:12 by PAETZOLD
;TCO 6.1169 - Prevent BADTTY BUGHLTs from TTDAL
; UPD ID= 850, SNARK:<6.MONITOR>TTYSRV.MAC.93, 6-Jun-82 13:29:18 by MURPHY
;TCO 6.1147 - Move bugdefs from BUGS.MAC to here and put them in-line.
; UPD ID= 799, SNARK:<6.MONITOR>TTYSRV.MAC.92, 1-Jun-82 08:30:59 by GRANT
;TCO 6.1148 - Prevent DECnet logins when remote logins are disallowed
; UPD ID= 792, SNARK:<6.MONITOR>TTYSRV.MAC.91, 26-May-82 20:11:25 by WALLACE
;TCO 6.1105 - Add Canonical Terminal Support
; Add routine INITDB for initialization of a CTS Terminal Data Base
; Define and initialize TTDBA, CTS Terminal Data Base Active flag
; Add internal routine GETTYP in order to get terminal type faster
; UPD ID= 753, SNARK:<6.MONITOR>TTYSRV.MAC.90, 15-May-82 10:43:20 by MILLER
;FIxes fro TTPINI
; UPD ID= 752, SNARK:<6.MONITOR>TTYSRV.MAC.89, 15-May-82 10:20:21 by MILLER
;TCO 6.1066. ADD TTPINI FOR RSP LINES
; UPD ID= 733, SNARK:<6.MONITOR>TTYSRV.MAC.88, 11-May-82 17:44:16 by MURPHY
;More of same - call LODCFE instead of LOADFE.
; UPD ID= 690, SNARK:<6.MONITOR>TTYSRV.MAC.87, 4-May-82 18:03:29 by MURPHY
;TCO 6.1123 - Timeout job 0 TTY output.
; UPD ID= 665, SNARK:<6.MONITOR>TTYSRV.MAC.86, 27-Apr-82 16:51:47 by MURPHY
;TCO 6.1106 - TTWAKN
; UPD ID= 660, SNARK:<6.MONITOR>TTYSRV.MAC.85, 26-Apr-82 10:26:52 by MILLER
;TCO 6.1066. Add call to CLSTRO in STRTTO
; UPD ID= 648, SNARK:<6.MONITOR>TTYSRV.MAC.84, 15-Apr-82 22:52:33 by PAETZOLD
;More TCO 5.1772 - Take out the AC reference of the JRST in TCOU6
; UPD ID= 603, SNARK:<6.MONITOR>TTYSRV.MAC.83, 6-Apr-82 15:46:03 by PAETZOLD
;TCO 5.1772 - Handle short blocks in TCOU6 and TCOU7
; UPD ID= 579, SNARK:<6.MONITOR>TTYSRV.MAC.82, 2-Apr-82 14:16:03 by MURPHY
;TCO 6.1074 - REVISE BUILD PROCEDURES.
; UPD ID= 541, SNARK:<6.MONITOR>TTYSRV.MAC.81, 21-Mar-82 03:52:19 by PAETZOLD
;TCO 5.1767 - Make SALLI2 use LCKTT and ULKTT
; UPD ID= 521, SNARK:<6.MONITOR>TTYSRV.MAC.80, 17-Mar-82 14:37:20 by MILLER
; MORE OF THE SAME. PUT IN CODE FOR COBF OF CONSOLE LINES
; UPD ID= 492, SNARK:<6.MONITOR>TTYSRV.MAC.79, 15-Mar-82 13:12:22 by MILLER
; UPD ID= 465, SNARK:<6.MONITOR>TTYSRV.MAC.78, 11-Mar-82 17:18:24 by MILLER
; UPD ID= 457, SNARK:<6.MONITOR>TTYSRV.MAC.77, 11-Mar-82 11:46:13 by MILLER
;TCO 6.1066. Use XTRCH7 to do configuration-dependent line scanning
; UPD ID= 430, SNARK:<6.MONITOR>TTYSRV.MAC.76, 1-Mar-82 20:53:17 by PAETZOLD
;TCO 5.1691 - Mousetrap Q1 getting trashed in STRTTO from TTYQOC
; UPD ID= 419, SNARK:<6.MONITOR>TTYSRV.MAC.75, 22-Feb-82 17:56:08 by HALL
;TCO 6.1000 - Don't try to have DECnet terminals until NSP settles down
; UPD ID= 410, SNARK:<6.MONITOR>TTYSRV.MAC.74, 19-Feb-82 15:53:19 by MURPHY
;TCO 5.1733 - Don't translate ESC if .TTATE mode.
; UPD ID= 406, SNARK:<6.MONITOR>TTYSRV.MAC.73, 16-Feb-82 11:20:58 by HALL
;TCO 6.1000 -Change name of module for KC
; UPD ID= 400, SNARK:<6.MONITOR>TTYSRV.MAC.72, 13-Feb-82 15:24:51 by HALL
;TCO 6.1000 - Support the 2080
; Set only .MCFLG and .PTFLG for now. Still need console lines
; UPD ID= 362, SNARK:<6.MONITOR>TTYSRV.MAC.71, 29-Jan-82 15:58:15 by MILLER
;TCO 5.1678. FIX CODE AT TTYASO, TTYASC AND TTSETL TO HANDLE TTACTL BETTER
; UPD ID= 351, SNARK:<6.MONITOR>TTYSRV.MAC.70, 25-Jan-82 16:43:54 by MURPHY
;Revise previous slightly.
; UPD ID= 331, SNARK:<6.MONITOR>TTYSRV.MAC.69, 20-Jan-82 09:20:53 by PAETZOLD
;TCO 5.1691 - prevent Q1 and Q2 trashing in TTYQOC
; UPD ID= 327, SNARK:<6.MONITOR>TTYSRV.MAC.68, 19-Jan-82 15:16:27 by MURPHY
;TCO 5.1688 - report noisy line only once.
; UPD ID= 316, SNARK:<6.MONITOR>TTYSRV.MAC.67, 18-Jan-82 14:55:59 by MILLER
;TCO 5.1678 again. Remove ATACTT routine
; UPD ID= 308, SNARK:<6.MONITOR>TTYSRV.MAC.66, 16-Jan-82 17:37:49 by MILLER
;TCO 5.1678. Add NOSKED to TTYDEA
; UPD ID= 298, SNARK:<6.MONITOR>TTYSRV.MAC.65, 14-Jan-82 04:20:21 by PAETZOLD
;More TCO 5.1665 - Fix problems with previous edit
; UPD ID= 294, SNARK:<6.MONITOR>TTYSRV.MAC.64, 13-Jan-82 14:27:53 by PAETZOLD
;TCO 5.1665 - Generate TTLOKB BUGHLT when TTLCK overdecrement detected
; detected in LCKTT, ULKTTY, and ULKTT
; UPD ID= 280, SNARK:<6.MONITOR>TTYSRV.MAC.63, 6-Jan-82 14:55:59 by PAETZOLD
;TCO 5.1655 - preserve C around the TDCALL in TTMS20
; UPD ID= 247, SNARK:<6.MONITOR>TTYSRV.MAC.62, 11-Dec-81 14:06:49 by PAETZOLD
;TCO 5.1635 - make sure we are NOINT at all times in STPAR even when we have to
;negotiate TELNET protocol options
; UPD ID= 229, SNARK:<6.MONITOR>TTYSRV.MAC.61, 3-Dec-81 10:48:24 by MURPHY
;TCO 5.1625 - Create job on CR and LF as well as ^C.
; COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1976, 1988.
; ALL RIGHTS RESERVED.
;
; THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
; ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE
; INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR ANY OTHER
; COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
; OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY
; TRANSFERRED.
;
; THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
; AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
; CORPORATION.
;
; DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
; SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY DIGITAL.
SEARCH PROLOG,TTYDEF,SCAPAR ;[7.1076]
TTITLE (TTYSRV,TTYSRV,< - Terminal Service Routines >)
SALL
Subttl Table of Contents
; Table of Contents for TTYSRV
;
; Section Page
;
;
; 1. Definitions
; 1.1 Tables for each Line Type . . . . . . . . . . 3
; 1.2 Default TTY Modes . . . . . . . . . . . . . . 4
; 1.3 TDCALx Macros . . . . . . . . . . . . . . . . 5
; 2. Once-Only Initialization . . . . . . . . . . . . . . . 7
; 3. Line Number/Address Conversion . . . . . . . . . . . . 16
; 4. Allocation/Deallocation . . . . . . . . . . . . . . . 22
; 5. JSYS Support Routines . . . . . . . . . . . . . . . . 33
; 6. Full Wake-Up Classes Support . . . . . . . . . . . . . 65
; 7. TTMSG JSYS . . . . . . . . . . . . . . . . . . . . . . 70
; 8. STO JSYS . . . . . . . . . . . . . . . . . . . . . . . 88
; 9. STTYP/GTTYP JSYSes . . . . . . . . . . . . . . . . . . 91
; 10. STPAR JSYS . . . . . . . . . . . . . . . . . . . . . . 93
; 11. TLINK JSYS . . . . . . . . . . . . . . . . . . . . . . 95
; 12. Miscellaneous Global Routines . . . . . . . . . . . . 108
; 13. Buffer Control . . . . . . . . . . . . . . . . . . . . 120
; 14. Character Information Table (CHITAB) . . . . . . . . . 122
; 15. TCO (First Level Output) . . . . . . . . . . . . . . . 125
; 16. TCOY (Second Level Output) . . . . . . . . . . . . . . 129
; 17. TCOY For Control Characters . . . . . . . . . . . . . 133
; 18. TCOUT (Third Level Output) . . . . . . . . . . . . . . 140
; 19. TCI (Get Char From Input Buffer) . . . . . . . . . . . 150
; 20. Miscellaneous Routines . . . . . . . . . . . . . . . . 157
; 21. TTCH7 (Empty TTBBUF, Process TTCS Words) . . . . . . . 160
; 22. TTCHI (Move Char From TTBBUF To Input Buffer) . . . . 172
; 23. TTEMES (Send Short Message) . . . . . . . . . . . . . 193
; 24. BIGSTO (Store Char In TTBBUF) . . . . . . . . . . . . 195
; 25. TTSNDO (Non-Interrupt Character Send) . . . . . . . . 196
; 26. TTSND (Send Character To Line) . . . . . . . . . . . . 199
; 27. PTY Device Dependent Code . . . . . . . . . . . . . . 206
; 28. End of TTYSRV . . . . . . . . . . . . . . . . . . . . 210
SUBTTL Definitions -- Tables for each Line Type
;TABLE OF INSTRUCTIONS TO SET/CLEAR PARITY BIT AS FUNCTION OF LINE TYPE
PARTBL: TRO T1,200 ;FE
TRZ T1,200 ;MC
TRO T1,200 ;PT
TRZ T1,200 ;TV
TRZ T1,200 ;CH
TRZ T1,200 ;LH
IFN .-PARTBL-NLTYPS,<PRINTX %PARTBL SIZE DOES NOT AGREE WITH NLTYPS>
;SIZE OF DYNAMIC DATA BASE TO BE ALLOCATED
DDLTBL: TTDDLN ;FE
TTMCLN ;MC
TTDDLN ;PT
TVTLEN ;TV
TTDDLN ;CH
TTDDLN ;LH
IFN .-DDLTBL-NLTYPS,<PRINTX %DDLTBL SIZE DOES NOT AGREE WITH NLTYPS>
;TABLE TO CONVERT INTERNAL LINE TYPES TO EXTERNAL (USER USABLE) LINE TYPES
SWAPCD ;THIS TABLE CAN BE SWAPPABLE
LTYTAB: NW%FE ;FE
NW%MC ;MC
NW%PT ;PT
NW%TV ;TV
NW%CH ;CH
NW%LH ;LH
IFN .-LTYTAB-NLTYPS,<PRINTX %LTYTAB SIZE DOES NOT AGREE WITH NLTYPS>
RESCD ;BACK TO RESIDENT STORAGE
SUBTTL Definitions -- Default TTY Modes
RESCD
;INDEX TO DEV TABLES FOR TTY0
DEVTT0:: DVXTT0
;USUAL DEVICE FLAGS AND STATUS
; 66 LINES/PAGE, 75 CHARS/LINE
; WAKEUP ON ALL, ECHO MODE 2 (DEFERRED OR IMMED)
; DATA MODE ASCII, 'RAISE' LC INPUT (ALSO CONVERTS OLD-STYLE ALT-MODES)
NORMTF::^D66B10+^D72B17+17B23+2B25+TT%ALK+1B29+1B31+TT%PGM
NORMTY::.TTDEF ;[7.1230] Non-CTY terminal type
CTYTY:: .TT120 ;[7.1230] CTY terminal type defaults to LA120
TAB81:: EXP 1B0+1B8+1B16+1B24+1B32
TAB82:: EXP 1B4+1B12+1B20+1B28
TAB83: EXP 1B0+1B8+1B16+1B24+1B32
;NORMAL CONTROL CHARACTER SETTINGS
TTICB1::BYTE (2) 0,1,1,1,1,1,1,2,1,2,3,1,1,2,1,1,1,1
TTICB2::BYTE (2) 1,1,1,1,1,1,1,1,1,3,1,1,1,1
; DEFAULT DEFINITIONS FOR TERMINAL WAKE-UP
TTWKDF: EXP -20 ;WAKE-UP ON ALL CHARACTERS
EXP -20
EXP -20
EXP -20
;POINTERS TO TERMINAL TYPE FIELDS
;ASSUME TYPE NUMBER IN 3
TTMBIT: POINT 3,TTYPE0(3),2 ;MECHANICAL BITS
TTCRPD: POINT 4,TTYPE0(3),7 ;CR PADDING FOR FULL LINE
TTLFPD: POINT 4,TTYPE0(3),11 ;LF PADDING FOR ONE LINE
TTTBPD: POINT 4,TTYPE0(3),15 ;TAB PAD FOR 4 SPACES
TTFFPD: POINT 4,TTYPE0(3),19 ;FF PAD FOR FULL PAGE
TTTWID: POINT 8,TTYPE0(3),27 ;WIDTH OF LINE
TTTLEN: POINT 8,TTYPE0(3),35 ;LENGTH OF PAGE
CTRLOF::0 ;NEW CTRL-O HANDLING POSSIBLE
SUBTTL Definitions -- TDCALx Macros
;This code supports a number (NLTYPS) of different types of terminals. The
;general code is in this module (TTYSRV), and there is another module for each
;terminal type which contains the device-dependent code for that type. Device
;dependent code is called via a macro defined below.
;The macro accepts a list of pairs, where each pair indicates a line type and a
;routine to be called for that type. If no specification is given for a line
;type, control passes through the TDCALL with no effect.
;TDCALL - Macro to do the device dependent subroutine call.
;Use:
; TDCALL S,<list>,default
; or
; TDCALL D,<list>,default
; where
; S indicates that a static pointer is in T2,
; D indicates that a dynamic pointer is in T2.
; list is the list of dispatches for this function
; where each item is a pair of the form <ty,adr>, where
; ty = one of the set FE, MC, PT, CH, LH indicating
; the line type for which the adr is relevant
; adr = the address of a routine to CALL for this type
; default, if present, is the instruction to assemble in the absence
; of the line type and/or the line case
;The macros ultimately assemble something of the form:
; LOAD CX,line-type
; CALL [ JRST FECASE
; JRST MCCASE
; ..
; JRST DZCASE](CX)
;where the literal must be exactly NLTYPS long and must be in the proper order.
;If no specification is found for a particular line type, a RET (or the
;default) is assembled in that literal location. There is also a variant
;(TDCALX) if the line type is already in an AC.
DEFINE TDCALL (DT,VECTOR,DEFLT)<
IFIDN <DT><S>,<LOAD CX,TTSTY,(T2)>
IFIDN <DT><D>,<LOAD CX,TLTYP,(T2)>
IFDIF <DT><S>,< ;;[7.1230]
IFDIF <DT><D>,< ;;[7.1230]
PRINTX ? Bad use of TDCALL "DT,VECTOR,DEFLT">> ;;[7.1230]
CALL [..TDC1 (<VECTOR>,<FE,MC,PT,TV,CH,LH>,<DEFLT>) ](CX)
>
DEFINE ..TDC1 (VECTOR,TYLST,DEFLT)<
IRP TYLST,<
..F==0 ;;FLAG TO SEE IF HAVE THIS TYPE
IRP VECTOR,<..TDC2 (VECTOR,TYLST)> ;;SEE IF MATCH AND ASSEMBLE DISPATCH
IFE ..F,<
IFNB <DEFLT>,<DEFLT>
IFB <DEFLT>,<RET>
>>>
DEFINE ..TDC2 (VECTOR,LTY)<..TDC3 (VECTOR,LTY)>
DEFINE ..TDC3 (TY,ADR,LTY)<
IFIDN <TY><LTY>,<
..F=1 ;;NOTE ASSEMBLED WORD HERE
JRST ADR>>
;VARIENT MACRO USED IF LINE TYPE ALREADY IN AC
DEFINE TDCALX (AC,VECTOR,DEFLT)<
CALL [..TDC1 (<VECTOR>,<FE,MC,PT,TV,CH,LH>,<DEFLT>) ](AC)>
SUBTTL Once-Only Initialization
;INITIALIZATION. CALLED FROM STG AT SYSTEM STARTUP
RESCD ;MUST BE RESIDENT
;INITIALIZE CHAIN OF LINE BUFFERS. LINE BUFFERS ARE OF SIZE TTSIZ.
;THIS CODE MAKES WORD 0 OF BUFFER N CONTAIN THE ADDRESS OF BUFFER N-1
;AND TTFREB CONTAIN THE ADDRESS OF THE HIGHEST-NUMBERED BUFFER
TTINIT::MOVEI 1,TTBUFS ;COMPUTE BEGINNING OF BUFFERS
SETOM TTQCNT ;INIT SCAN COUNT
TRNE 1,TTSIZ-2 ; TO BE N*TTSIZ+1
ADDI 1,TTSIZ ;FIRST WORD IN BUFFER AREA
ANDCMI 1,TTSIZ-1 ;WHICH IS 0 MOD TTSIZ
ADDI 1,1 ;SUCH THAT EACH BUFFER ENDS 0 MOD ADR
MOVEI 2,NTTBF
MOVEM 2,TTFREC ;FREE BUFFER COUNT
SUBI 2,1
MOVEM 1,TTSIZ(1) ;CONSTRUCT LIST OF FREE BUFFERS
ADDI 1,TTSIZ
SOJG 2,.-2
MOVEM 1,TTFREB ;FREE BUFFER LIST
;INITIALIZE THE STATIC DATA FOR ALL LINES. TTSPWD IS DONE BY DTEINI
SETOM SALLCK ;INIT SENDALL LOCK
MOVEI T1,NLINES ;DO ALL LINES
SETZ T2, ;START WITH LINE 0
TTINI1: SETZM TTSTAT(T2) ;CLEAR STATUS WORD
MOVEI T3,MXFECC ;GET DEFAULT LINE ALLOCATION
STOR T3,TSFMC,(T2) ; AND SAVE IT FOR THIS LINE
SETZM TTACTL(T2) ;NO DYNAMIC DATA YET
AOS T2 ;GO TO NEXT LINE
SOJG T1,TTINI1 ; UNTIL ALL LINES ARE DONE
;..
;THIS CODE ESTABLISHES THE TYPE OF EACH LINE. LINES OF A TYPE ARE ASSIGNED
;CONSECUTIVELY, STARTING WITH LINES THAT ARE LOCAL TO THE MACHINE. THIS
;CODE STORES THE LINE TYPE WITH THE LINE AND SETS UP TT1LIN
;FOR EACH TYPE TO CONTAIN THE NUMBER OF THE FIRST LINE.
;..
MOVEI T2,0 ;T2/ FIRST LINE IS LINE 0
MOVEI T3,TT.FE ;T3/ CODE FOR FRONT-END LINES
MOVEI T4,NTTFE ;T4/ NUMBER OF FRONT END LINES
CALL SETTYP
MOVEI T3,TT.MCB ;T3/ CODE FOR MCB LINES
MOVEI T4,NTTMCB ;T4/ NUMBER OF MCB LINES
CALL SETTYP
MOVEI T3,TT.PTY ;T3/ CODE FOR PSEUDO-TERMINALS
MOVEI T4,NTTPTY ;T4/ NUMBER OF PTY'S
CALL SETTYP
HRLI T4,-NTTTVT ;NUMBER OF TVTs
HRR T4,T2 ;FIRST TVT LINE
MOVEM T4,TVTPTR ;SAVE AOBJN AC FOR TVTs
MOVEI T3,TT.TVT ;T3/ CODE FOR TCP LINES
MOVEI T4,NTTTVT ;T4/ NUMBER OF TVTs
CALL SETTYP
MOVEI T3,TT.CTH ;T3/ CODE FOR CTERM HOST LINES
MOVEI T4,NTTCTH ;T4/ NUMBER OF CTERM HOST LINES
CALL SETTYP
MOVEI T3,TT.LAH ;CODE FOR LAT HOST LINES
MOVEI T4,NTTLAH ;NUMBER OF LAT HOST LINES
CALL SETTYP ;
;INITIALIZE POINTERS TO TTBBUF
SETZM TTBIGO
SETZM TTBIGC
SETZM TTBIGI
SETZM TTCQLN ;INITIALIZE FOR TTHNG4
REPEAT 0,< ;WAS ONLY USED FOR DZ'S
SAVEAC <Q1>
MOVSI Q1,-NLTYPS ;FIND NUMBER OF LINE TYPES
TYINLP: TDCALX Q1,<>,<RET>
AOBJN Q1,TYINLP ;DO ALL TYPES
>;END OF REPEAT 0
CALLRET TTSTRT
;SETTYP - SET THE TERMINAL TYPE FOR A GROUP OF LINES
;ACCEPTS:
; T2/ CURRENT LINE NUMBER (FIRST FOR THIS TYPE)
; T3/ LINE TYPE
; T4/ NUMBER OF LINES OF THIS TYPE
; CALL SETTYP
;RETURNS +1: ALWAYS
; T2/ UPDATED LINE NUMBER (FIRST LINE OF NEXT TYPE)
SETTYP: JUMPG T4,SETTY2 ;IF NO LINES OF THIS TYPE,
SETOM TT1LIN(T3) ;SET FIRST LINE TO -1
RET ; AND RETURN
SETTY2: MOVEM T2,TT1LIN(T3) ;STORE FIRST LINE FOR THIS TYPE
SETTY1: STOR T3,TTSTY,(T2) ;SAVE LINE TYPE FOR THIS LINE
AOS T2 ;NEXT LINE NUMBER
SOJG T4,SETTY1 ;GO DO THE NEXT LINE IN THIS TYPE
CAMN T3,CTYTYP ;IS THIS THE LINE TYPE FOR THE CTY?
JRST [ CALL INICTY ;YES. INITIALIZE IT
AOS T2 ;POINT TO NEXT LINE
RET]
RET
;INICTY - INITIALIZE THE CTY
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; T3/ LINE TYPE
; CALL INICTY
;RETURNS +1: ALWAYS
;CTY IS A SPECIAL CASE. IT IS ALWAYS LINE 'CTYLNO', AND ITS DYNAMIC DATA
;IS PERMANENTLY ALLOCATED. CTYUNT AND CTYINT WILL BE FIXED BY IDCTY.
INICTY: SAVET
MOVEM T2,CTYLNO ;SAVE INTERNAL LINE NUMBER
HRLM T3,CTYLNO ;SAVE THIS TOO
SETOM CTYINT ;INITIALIZE INTERNAL EQUIVALENT OF ACTUAL
; CTY LINE ON .FEDLS DEVICE
HRRZ T1,DDLTBL(T3) ; AND FULL LENGTH BLOCK
HRLI T1,.RESP1 ;INDICATE NOT SWAPPABLE
MOVX T2,RS%SE0!.RESTP ;WE'RE RUNNING IN SECTION 0 HERE
CALL ASGRES ;GET RESIDENT SPACE
BUG.(HLT,NOCTY,TTYSRV,SOFT,<Unable to allocate data for CTY>,,<
Cause: During initialization of terminal lines, a call to ASGRES was made
to get resident free space for the CTY's data base. The call got
a failure return - no free space available.
>)
HRRZ T2,CTYLNO ;T2/ LINE NUMBER, T1/ ADDRESS OF BLOCK
HLRZ T3,CTYLNO ;RECOVER LINE TYPE
STOR T3,TTSTY,(T2)
HRRZS CTYLNO ;FIX UP WORD
CALL TTSETL ;[7.1230] (T1,T2/) Set initial dynamic data
SKIPN SAVTRE ;[7.1230] Saving trees?
IFSKP. ;[7.1230] If so, set line type from CTYTY
MOVE T3,CTYTY ;[7.1230] Load CTY line type
STOR T3,TTTYP,(T1) ;[7.1230] and save it in dynamic data
LDB T4,TTTWID ;[7.1230] Load that type's width
STOR T4,TPWID,(T1) ;[7.1230] Store CTY's width in dynamic data
LDB T4,TTTLEN ;[7.1230] Load that type's length
STOR T4,TPLEN,(T1) ;[7.1230] Store CTY's length in dynamic data
LDB T4,TTMBIT ;[7.1230] Get mechanical (fill) bits
DPB T4,[POINT 3,TTFLGS(T1),3] ;[7.1230] Store where STTYP would
ENDIF. ;[7.1230] End of saving trees code
SETZRO TT%ALK,TTFLGS(T1) ;[7.1230] Set CTY to refuse links (and advice)
SETONE TTPRM,(T1) ;DON'T DEALLOCATE THIS DYNAMIC DATA
MOVEM T1,TTACTL(T2) ;POINT TO DYNAMIC DATA
RET
;TTSET - SET INITIAL VALUES FOR A LINE
;ACCEPTS:
; T1/ ADDRESS OF DYNAMIC DATA
; T2/ LINE NUMBER
;CALL TTSET
;RETURNS +1: ALWAYS
;Leaves TTACTL unchanged to protect against state changes
; * * * *
;NEEDS WORK - CAN'T INIT TOO MANY WORDS
; * * * *
TTSETL: LOAD T4,TTSTY,(T2) ;GET THE LINE TYPE
MOVE T4,DDLTBL(T4) ;GET LONG BLOCK LENGTH
JRST TTSET
TTSETS:
TTSETM: MOVEI T4,MSGLEN ;INDICATE MESSAGE BLOCK
JRST TTSET
TTSET: SAVEQ
TDCALL S,<<FE,TTSETF>> ;INIT STUFF FOR RSX20F
LOAD T3,TTSTY,(T2) ;GET LINE TYPE FROM STATIC
STOR T3,TLTYP,(T1) ; AND COPY TO DYNAMIC
MOVE Q1,NORMTY ;GET NORMAL TERMINAL TYPE
STOR Q1,TTTYP,(T1) ;SET IN DYNAMIC DATA
STOR T2,TINTL,(T1) ;MAKE DYNAMIC DATA POINT TO STATIC
MOVE T3,IBFRC ;GET DEFAULT BUFFER CONTROL
MOVEM T3,TTBFRC(T1) ; AND STORE IN DYNAMIC DATA
CAIN T4,MSGLEN ;IS THIS A MESSAGE-LENGTH BLOCK?
RET ;YES. NO MORE INITIALIZATION
;TTSET...
CAME T2,CTYLNO ;CTY ASSIGN?
CALL SETOBF ;NO, SET OUTPUT BUFFER COUNTS
SETONE TTIPSI,(T1) ;SET NO PSI
SETONE TTOPSI,(T1) ;INPUT OR OUTPUT
SETONE TTPSFK,(T1) ;AND NO FORK
FTCTS < SETZRO TTDBA,(T1) ;No CTS Terminal Data Base
> ;End of Conditional Assembly
MOVE Q1,TTICB1 ;SETUP USUAL CONTROL CHARACTER MODES
MOVEM Q1,FCMOD1(T1)
MOVE Q1,TTICB2
MOVEM Q1,FCMOD2(T1)
SETOM TTLINK(T1) ;NO LINKS TO OTHER LINES
SETZRO <MO%NUM+MO%NTM>,T3 ;[7256] Mask for user messages and inhibit
CALL TTSNTF ;[7256] Clear them on job startup
MOVE Q1,NORMTF ;USUAL DEVICE FLAGS AND STATUS
LOAD T3,TTSTY,(T2) ;GET TYPE OF LINE AGAIN
CAIN T3,TT.PTY ;IS IT A PTY?
TXZ Q1,TT%PGM ;YES. NO XON/XOFF THEN
LOAD T3,TT%WID,Q1 ;GET STANDARD WIDTH
LOAD T4,TT%LEN,Q1 ;GET LENGTH
SETZRO <TT%WID,TT%LEN>,Q1 ;CLEAR OUT THESE VALUES
DPB Q1,[POINT 35,TTFLGS(T1),35] ;STORE STANDARD VALUES IN DYNAMIC DATA
PUSH P,T2 ;SAVE
MOVE T2,T1
STOR T3,TPWID,(T2) ;SET UP STANDARD WIDTH
STOR T4,TPLEN,(T2) ;STORE PAGE LENGTH
MOVEI T3,PGMOC2 ;SET DEFAULT PAGE UNPAUSE CHARACTER
TDCALL D,<<MC,RSKP>,<CH,RSKP>,<LH,RSKP>> ;DECNET NVT, CTERM, OR LAT ?
MOVEI T3,PGMONC ;NO, USE SAME AS COMMAND UNPAUSE
STOR T3,TTUPC,(T2)
TDCALL D,<<MC,RSKP>,<CH,RSKP>,<LH,RSKP>> ;DECNET NVT, CTERM, OR LAT ?
MOVEI T3,PGMOFC ;NO, USE SAME AS COMMAND PAUSE
STOR T3,TTPPC,(T2)
SETONE TWFRK,(T2) ;INDICATE NO FORK WAITING
MOVE Q1,JOBNO ;GET THIS JOB NUMBER
STOR Q1,TCJOB,(T2) ;INDICATE THAT IT OWNS THE TERMINAL
SETONE TTPFK,(T2) ;NO SCTTY FORK YET
SETZRO TTDEV,(T2) ;CLEAR THE DEVICE-DEPENDENT WORD
XMOVEI T1,TTWKDF ;POINT TO DEFAULT 4-WORD MASK
CALL TTSBM ;GO SET IT
SETZ T1, ;TURN OFF FIELD WIDTH
CALL TTSFW
MOVE T1,T2 ;RESTORE T1
POP P,T2 ;RESTORE T2
RET
;TTSTRT - ACTIVATE ALL LINES. USED ON RESTART AS WELL AS START
TTSTRT: SETZM TTHNGT
SETZM TTHNGN
REPEAT 0,< ;WAS ONLY USED FOR DZ'S
SAVEQ ;SAVE REGISTERS
MOVSI Q1,-NLTYPS ;GET THE COUNT OF TYPES
TYRSLP: ; TDCALX Q1,<>,<RET>
AOBJN Q1,TYRSLP ;DO ALL LINES
>;END OF REPEAT 0
RET
;TTRSET - RESUME RUNNING TTY'S AFTER POWER FAILURE
;* * * *
;DON'T DO THIS FOR FE LINES. MAYBE REMOVE ALL OF IT
; * * * *
;THIS CODE HANDLES ALL LINES. IN FACT, NON-PHYSICAL LINES WON'T HAVE
;TTOTP SET, SO TTSND0 WILL NOT BE CALLED FOR THEM
TTRSET::MOVSI 2,-NLINES ;DO ALL LINES
TTRST1: PUSH P,T2 ;SAVE LINE NUMBER
CALL STADY ;IS LINE ACTIVE?
JRST TTRST2 ;NOT AT ALL
JE TTOTP,(T2),TTRST2 ;ACTIVE IN SOME WAY. WAS OUTPUT IN PROGRESS?
SETZRO TTOTP,(T2) ;YES, CLEAR FLAG SO IT WILL GET RESTARTED
CALL TTSND0 ;RESTART IT
TTRST2: POP P,T2 ;RESTORE COUNTER AND LINE NUMBER
AOBJN 2,TTRST1
CALLRET TTSTRT ;ACTIVATE DATASETS, ETC.
;INITDB - Initialize CTS Terminal Data Base
;T1/ Monitor Address of Data Base
;T2/ Terminal Line Number
; CALL INITDB
; Returns +1: Failure
; T1/ Error Code
; Returns +2: Success
FTCTS <
INITDB::STKVAR <DYNDAT,LINNUM> ;Allocate some temporary storage
MOVE T4,T1 ;Save address of data base
MOVEM T2,LINNUM ;Save the line number
CALL LCKTTY ;Lock the Dynamic Data
RETBAD ;Pass failure to caller
LOAD T3,TTDBA,(T2) ;Get flag for Data Base Active
SKIPN T3 ;Test if Data Base already Active
IFSKP. ;If Data Base is already active
CALL ULKTTY ; unlock the Dynamic Data
RETSKP ; and give successful return
ENDIF.
MOVEM T2,DYNDAT ;Save address of the Dynamic Data
MOVEI T1,TDBSIZ*PGSIZ-1 ;Get size of data base area (minus one, because
; we clear first word ourselves)
MOVE T2,T4 ;Get address of source block
SETZM (T2) ;Clear first source word
MOVE T3,T2 ;Get address of
AOJ T3, ; destination block
CALL XBLTA ;Clear and forcibly LOCK the data base
MOVE T1,LINNUM ;Get the line number
ADDI T1,.TTDES ;Form a terminal designator
MOVEM T1,.TDIOJ(T4) ;Initialize terminal designator in data base
SETOM .TDLOK(T4) ;Unlock the data base
MOVE T2,DYNDAT ;Get address of the Dynamic Data
SETONE TTDBA,(T2) ;Say Terminal Data Base is Active
CALL ULKTTY ;Unlock the Dynamic Data
RETSKP ;Give successful return
ENDSV. ;End STKVAR Range
> ;End of Conditional Assembly
;THE FOLLOWING ROUTINES PROVIDE THE MECHANISM FOR INSURING THAT A LINE
;REMAINS ACTIVE (AND THUS THE ADDRESS OF ITS DYNAMIC DATA REMAINS VALID)
;WHILE ITS DYNAMIC DATA IS BEING USED. TO ADDRESS A LINE'S DYNAMIC DATA
;FROM PROCESS CONTEXT, DO THE FOLLOWING:
;1. CALL LCKTTY, WHICH WILL INCREMENT THE LOCK COUNT IN THE LINE'S DYNAMIC
;DATA AND RETURN NOINT.
;2. IF A DISMISS MUST BE DONE, CALL TTYDIS, WHICH WILL PLACE AN ENTRY ON THE
;JOB'S JSB STACK AND GO OKINT. AT THIS POINT THE USER CAN CTRL/C, IN
;WHICH CASE THE PROCESSING OF THE JSB STACK WILL DECREMENT THE LINE'S
;LOCK COUNT.
;3. WHEN THE DISMISS COMPLETES, CALL TTYAWK, WHICH WILL REMOVE THE STACK
;ENTRY AND RETURN NOINT
;4. WHEN THE DYNAMIC DATA IS NOT LONGER NEEDED, CALL ULKTTY, WHICH WILL
;DECREMENT THE LOCK COUNT AND RETURN OKINT.
;WHEN ADDRESSING DYNAMIC DATA FROM SCHEDULER CONTEXT, CALLING LCKTTY
;AND ULKTTY IS LEGAL BUT DOES NOT INCREMENT THE COUNT. IT IS ASSUMED
;THAT THE DYMAMIC DATA WILL NOT DISAPPEAR WHILE THE SCHEDULER IS RUNNING.
;THEREFORE, CALLING STADYN WILL HAVE THE SAME EFFECT; I.E. CONVERTING
;LINE NUMBER TO ADDRESS OF DYNAMIC DATA
;IF THE DYNAMIC DATA IS TO BE ADDRESSED OVER A VERY SHORT PERIOD, THE
;CALLER CAN GO NOSKED, CALL STADYN, ADDRESS THE DATA, AND THEN GO
;OKSKED
SUBTTL Line Number/Address Conversion
;STADYN - CONVERT STATIC LINE NUMBER TO DYNAMIC ADDRESS
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL STADYN
;RETURNS +1: LINE DOES NOT HAVE FULL-SIZED DYNAMIC DATA BASE,
; T2/ -1 IF LINE IS BECOMING ACTIVE
; OR
; T2/ 0 IF LINE IS TOTALLY INACTIVE
; OR
; T2/ ADDRESS OF DYNAMIC DATA BLOCK IF BLOCK IS NONSTANDARD
; +2: LINE HAS FULL-SIZED DYNAMIC DATA BASE,
; T2/ ADDRESS OF DYNAMIC DATA BLOCK
;CLOBBERS NO AC'S
;CALLER SHOULD INSURE THAT THE TERMINAL'S DATA CANNOT GO AWAY EITHER
;BY BEING NOSKED OR BY CALLING LCKTTY
STADYN::SKIPLE T2,TTACTL(T2) ;HAVE A BLOCK?
RETSKP ;YES. FULLY ACTIVE LINE
CAME T2,[-1] ;NO. IS IT BECOMING ACTIVE?
TXZ T2,TTSHBK ;NO. IS MESSAGE OR SHORT. RETURN IT
RET ;DONE
;VARIENT OF ABOVE - RETURNS +1 IF NO BLOCK PRESENT, +2 IF ANY BLOCK PRESENT
STADY:: SKIPLE T2,TTACTL(T2) ;FULL BLOCK?
RETSKP ;YES
CAME T2,[-1]
TXZ T2,TTSHBK
JUMPG T2,RSKP ;RETURN +2 IF ANY BLOCK
RET
;DYNSTA - CONVERT ADDRESS OF STATIC DATA BASE TO INTERNAL LINE NUMBER
;ACCEPTS: T2/ ADDRESS OF STATIC DATA BASE
; CALL DYNSTA
;RETURNS +1: ALWAYS,
; T2/ INTERNAL LINE NUMBER
DYNSTA::LOAD T2,TINTL,(T2) ;GET FROM DYNAMIC DATA
RET ;RETURN
;LCKTTY - GET ADDRESS OF DYNAMIC DATA AND PREVENT DEALLOCATION
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL LCKTTY
;RETURNS +1: LINE DOES NOT HAVE FULL-SIZED DYNAMIC DATA BASE,
; T2/ -1 IF LINE IS BECOMING ACTIVE
; OR
; T2/ 0 IF LINE IS TOTALLY INACTIVE
; OR
; T2/ ADDRESS OF DYNAMIC DATA BLOCK IF BLOCK IS NONSTANDARD
; +2: LINE HAS FULL-SIZED DYNAMIC DATA BASE,
; T2/ ADDRESS OF DYNAMIC DATA BLOCK
;NOTE THAT THE CALLER MUST CALL ULKTTY BEFORE THE DATA BLOCK CAN BE
;DEASSIGNED. ULKTTY WILL ACCEPT ANY OUTPUT FROM LCKTTY, SO IF THE CALLER
;IS INTERESTED ONLY IN FULLY ACTIVE BLOCKS, IT SHOULD CALL ULKTTY EVEN
;IF LCKTTY TAKES A NON-SKIP RETURN
;CLOBBERS NO AC'S
LCKTTY::NOSKD1 ;NO OTHER JOBS RUNNING UNTIL DATA LOCKED
SKIPG T2,TTACTL(T2) ;ANY DATA BASE AT ALL?
JRST [ SKIPE T2 ;NOT FULLY ACTIVE. IS IT ASSIGNED?
CAMN T2,[-1] ;OR BECOMING ACITVE?
RETBAD (,<OKSKD1>) ;NOT A BLOCK
TXZ T2,TTSHBK ;MESSAGE OR SHORT. MAKE IT ADDRESSABLE
CALLRET LCKTT] ;LOCK IT
CALL LCKTT ;LINE IS FULLY ACTIVE. DO THE LOCKING
RETSKP ;INDICATE FULL-LENGTH BLOCK
;LCKTT - DO THE REAL LOCKING
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL LCKTT
;RETURNS +1: ALWAYS, NOINT
;PRESERVES ALL AC'S
LCKTT: SETZRO TTDAL,(T2) ;FLUSH DEALLOCATE REQUEST IF ANY
SKIPE INSKED ;DON'T LOCK IF IN SCHEDULER
RET
NOINT ;BE NOINT WHILE LINE IS LOCKED
LCKTT1: INCR TTLCK,(T2) ;BUMP THE LOCK
JE TTLCK,(T2),LCKTT2 ;CHECK FOR BAD LOCK
OKSKD1 ;ALLOW SCHEDULING ONCE LOCKED
RET
LCKTT2: ;HERE TO HANDLE BAD LOCK
BUG.(HLT,TTLOKB,TTYSRV,SOFT,<TTLCK - Bad TTY lock>,,<
Cause: The monitor tried to lock a TTY line and discovered the lock
count was overdecremented.
>)
JRST LCKTT1 ;HANDLE IF WE ARE CONTINUED FROM BUGHLT
;ULKTTY - CLEAR LOCK BIT
;ACCEPTS:
; T2/ OUTPUT FROM LCKTTY
; CALL ULKTTY
;RETURNS +1: ALWAYS, OKINT
;CLOBBERS NO AC'S
ULKTTY::SKIPN INSKED ;DON'T DECREMENT COUNT IF IN SCHEDULER
SKIPG T2 ;NO COUNT IF INACTIVE OR BECOMING ACTIVE
RET
JE TTLCK,(T2),ULKTMP ;CHECK FOR OVERLY DECREMENTING
DECR TTLCK,(T2) ;DECREMENT LINE'S LOCK COUNT
IFQN. TTDAL,(T2) ;DID SOMEBODY TRY TO DEALLOCATE THIS?
CALL TTYDED ;YES, DO IT NOW
NOP
ENDIF.
OKINT ;ALLOW INTERRUPTS NOW THAT BLOCK IS UNLOCKED
RET
ULKTMP: SAVELN
LOAD T2,TINTL,(T2)
BUG.(CHK,ULKBAD,TTYSRV,HARD,<Unlocking TTY when count is zero>,<<T2,TTYLIN>>,<
Cause: A call has been made to ULKTTY to unlock a terminal but the lock
count is already zero. This indicates a coding problem.
Data: TTYLIN - TTY line number
>)
OKINT
RET
;ULKTT - DECREMENT THE LOCK COUNT. CALLED ONLY FROM FREE
ULKTT:: JE TTLCK,(T2),ULKTT2 ;CHECK FOR BAD UNLOCK
DECR TTLCK,(T2) ;UNLOCK THE TTY
ULKTT1: IFQN. TTDAL,(T2) ;DID SOMEBODY TRY TO DEALLOCATE THIS?
CALL TTYDED ;YES, DO IT NOW
NOP
ENDIF.
RET
ULKTT2: ;HERE ON BAD UNLOCK
BUG.(CHK,TTULKB,TTYSRV,HARD,<Bad TTY unlock in ULKTT>,,<
Cause: The monitor tried to unlock the TTY and it was already
unlocked.
>)
JRST ULKTT1 ;HANDLE IF CONTINUE AFTER BUGHLT
;ROUTINES TO ADJUST LOCK STATUS BEFORE AND AFTER DISMISSING.
;THIS CODE PUTS AN ENTRY ON THE JSB STACK IN THE EVENT THE PROCESS
;IS INTERRUPTED WHILE DISMISSED.
;PUT ENTRY ON JSB STACK, AND GO OKINT
;ACCEPTS: T2/ ADDRESS OF DYNAMIC DATA
REPEAT 0,< ;NOT USED
TTYDIS: JE TTLCK,(T2),R ;THIS IS A HACK TO KEEP FSIINI HAPPY.
;SINCE THE SWAPPABLE MONITOR IS NOT
;LOADED YET, WE CAN'T USE THE NORMAL
;LOCKING STATEGY. THIS IS ACCEPTABLE
;HERE SINCE NO CONFUISION CAN RESULT.
SKIPE INSKED ;IN THE SCHEDULER?
RET ;YES. DON'T MANIPULATE THE JSB STACK
SAVET ;SAVE ALL REGISTERS
LOAD T1,TINTL,(T2) ;GET INTERNAL LINE NUMBER
MOVEI T2,STKCD3 ;GET PROPER CODE
CALL JSBSTK ;QUEUE UP THE ENTRY
OKINT ;ALLOW INTS NOW
RET ;AND DONE
;DISMISS WAS SATISFIED. DEQUEUE THE ENTRY AND GO NOINT
TTYAWK: JE TTLCK,(T2),R ;THIS IS A HACK TO KEEP FSIINI HAPPY.
;SINCE THE SWAPPABLE MONITOR IS NOT
;LOADED YET, WE CAN'T USE THE NORMAL
;LOCKING STATEGY. THIS IS ACCEPTABLE
;HERE SINCE NO CONFUISION CAN RESULT.
SKIPE INSKED ;IN THE SCHEDULER?
RET ;YES. DON'T MANIPULATE THE JSB STACK
SAVET ;SAVE ALL REGISTERS
NOINT ;PREVENT INTS
LOAD T1,TINTL,(T2) ;GET INTERNAL LINE NUMBER
MOVEI T2,STKCD3 ;GET TYPE
CALLRET JSFRMV ;REMOVE ENTRY AND DONE
> ;END OF REPEAT 0
SUBTTL Allocation/Deallocation
;TTYASO - ASSIGN TERMINAL FOR OPENF
;ACCEPTS:
; T2/ LINE NUMBER
; CALL TTYASO
;RETURNS +1: FAILED,
; T1/ 1B0 + ADDRESS OF ROUTINE IF NEED TO DISMS
; T1/ ERROR CODE IF FAILED
; +2: SUCCEEDED
;PRESERVES T2
SWAPCD
TTYASO::SAVELN
STKVAR <TTYALN>
MOVEM T2,TTYALN ;SAVE LINE NUMBER
NOSKD1 ;NO STATE CHANGE PLEASE
CALL STADYN ;IS LINE FULLY ACTIVE?
SKIPA ;NO.
JRST TTYAO4 ;FULLY ACTIVE. HANDLE SPECIALLY
JUMPLE T2,TTYAO1 ;SEE IF SHORT OR MESSAGE BLOCK IN USE
;TTACTL greater than 0. Line is temporarily active for system message or
;sendall. Wait until TTACTL less than or equal to 0 or full-length block has
;been assigned and try again.
OKSKD1
MOVE T1,[TSACT1] ;YES. SET UP TO WAIT
TXO T1,1B0 ;INDICATE IT'S A ROUTINE ADDRESS
RETBAD ;LET CALLER DO A DISMS
TTYAO1: JUMPE T2,TTYAO2 ;SEE IF LINE BECOMING ACTIVE
;TTACTL less than 0. Line is becoming active (another fork in this job is
;initializing it). Wait until line is inactive or has full-length block and
;try again.
OKSKD1
MOVE T1,[TSACT2] ;YES. SET UP TO WAIT
TXO T1,1B0 ;INDICATE IT'S A ROUTINE ADDRESS
RETBAD ;LET CALLER DO A DISMS
;TTACTL=0. Assign a dynamic block for the line and initialize its values.
TTYAO2: MOVE T2,TTYALN ;GET LINE NUMBER
SETOM TTACTL(T2) ;INDICATE BEING INITIALIZED
OKSKD1
LOAD T1,TTSTY,(T2) ;GET THE LINE TYPE
MOVE T1,DDLTBL(T1) ;GET LONG BLOCK LENGTH
HRLI T1,.RESP3 ;T1/ INDICATE PROCESS CONTEXT
MOVX T2,.RESTP ;EXTENDED SECTION, TERMINAL POOL
CALL ASGRES ;GET SOME FREE SPACE
JRST TTYAO3 ;NO SPACE AVAILABLE
MOVE T2,TTYALN ;T2/ LINE NUMBER, T1/ ADDRESS OF DYNAMIC BLOCK
CALL TTSETL ;INITIALIZE VALUES FOR TERMINAL
MOVEM T1,TTACTL(T2) ;MAKE STATIC DATA POINT TO DYNAMIC
RETSKP
;FAILED TO GET RESIDENT STORAGE. LET THE OPENF FAIL
TTYAO3: MOVE T2,TTYALN ;GET LINE NUMBER
SETZM TTACTL(T2) ;RESTORE TTACTL TO PREVIOUS VALUE
RETBAD (MONX05)
;Line was already active. If permanent, it may be becoming active. In that
;case, make it active.
TTYAO4: OKSKD1
JE <TTBAC,TTPRM>,(T2),RSKP ;IF NOT BECOMING ACTIVE, OK AS IS
MOVE T3,JOBNO ;GET THIS JOB'S NUMBER
STOR T3,TCJOB,(T2) ;INDICATE IT OWNS THIS TERMINAL
SETZRO TTBAC,(T2) ;INDICATE NOT BECOMING ACTIVE
RETSKP
ENDSV. ;END STKVAR
;TSACT1 - SCHEDULER TEST TO SEE IF LINE IS AVAILABLE
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
;CAUSES WAKEUP IF LINE IS INACTIVE, BECOMING ACTIVE, OR HAS A FULL-LENGTH
;BLOCK
RESCD
TSACT1::HRRZ T2,T1 ;GET LINE NUMBER
CALL STADYN ;POINT TO DYNAMIC DATA
JUMPG T2,0(T4) ;NOT FULLY ACTIVE
JRST 1(T4) ;FULLY ACTIVE. WAKEUP
;TSACT2 - SCHEDULER TEST TO SEE IF LINE IS AVAILABLE
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
;CAUSES WAKEUP IF LINE IS INACTIVE OR FULLY ACTIVE
TSACT2: HRRZ T2,T1 ;GET LINE NUMBER
CALL STADYN ;POINT TO DYNAMIC DATA
JUMPN T2,0(T4) ;NOT FULLY ACTIVE
JRST 1(T4) ;FULLY ACTIVE. WAKEUP
;Init terminal state after assign.
;Called from FILMSC to do "process context" assign functions
; T2/ internal line number
;Returns: +1 always
; Clobbers temps
TTPINI::STKVAR<DLINE>
CALL LCKTTY ;LOCK IT UP
IFNSK.
SKIPLE T2 ;DID SOMETHING GET LOCKED?
CALL ULKTTY ;YES.
RET ;AND DONE
ENDIF.
MOVEM T2,DLINE ;SAVE THIS
TDCALL D,<<FE,TTEXF>,<MC,MCEXF>,<LH,LTEXF>,<CH,CTHEXF>> ;ENABLE XOFF
MOVE T2,DLINE ;GET BACK DYNAMIC DATA
CALLRET ULKTTY ;AND DONE
;TTYASC - ASSIGN TERMINAL AS CONTROLLING TERMINAL FOR A JOB
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTYASC
;RETURNS +1: FAILED,
; T1/ ERROR CODE
; +2: SUCCEEDED
;PRESERVES T2
TTYASC::CAMN T2,CRJTTY ;TRYING TO ASSIGN A TTY BEING CRJOB'D ON?
SKIPGE CRJFLG ;YES, NO GOOD UNLESS WE'RE THAT JOB!
SKIPA ;DIFFERENT TTY OR WE'RE THE CRJOB...GO ON
RETBAD (DEVX2) ;BAD, SAY DEVICE ASSIGNED
TTYASG:: ;SCHED-LEVEL ENTRY FOR NRTHOST'S MC TTYs
SAVELN ;SAVEAC T2
STKVAR <TTYALN>
MOVEM T2,TTYALN ;SAVE LINE NUMBER
NOSKD1
CALL STADYN ;POINT TO DYNAMIC DATA
SKIPA ;NOT FULLY ACTIVE
JRST TTYAC4 ;FULLY ACTIVE. GO HANDLE SPECIALLY
JUMPLE T2,TTYAC1 ;SEE IF SHORT OR MESSAGE BLOCK IN USE
;TTACTL greater than 0. Line is temporarily active for system message or
;sendall. Fail on the assumption that the user will type another control C.
OKSKD1
RETBAD (TTYX03)
;TTACTL less than or equal to 0. Line is inactive or becoming active. Assign
;storage and initialize values.
TTYAC1: MOVE T2,TTYALN ;GET LINE NUMBER
SETOM TTACTL(T2) ;INDICATE BEING INITIALIZED
OKSKD1
LOAD T1,TTSTY,(T2) ;GET THE LINE TYPE
MOVE T1,DDLTBL(T1) ;GET LONG BLOCK LENGTH
HRLI T1,.RESP2 ;T1/ INDICATE MAYBE SCHEDULER CONTEXT
MOVX T2,.RESTP ;EXTENDED SECTION, TERMINAL POOL
CALL ASGRES ;GET SOME FREE SPACE
JRST TTYAC3 ;NO SPACE AVAILABLE
MOVE T2,TTYALN ;T2/ LINE NUMBER, T1/ ADDRESS OF DYNAMIC BLOCK
CALL TTSETL ;INITIALIZE VALUES FOR TERMINAL
MOVEM T1,TTACTL(T2) ;MAKE STATIC DATA POINT TO DYNAMIC
RETSKP
;FAILED TO GET RESIDENT STORAGE. FAIL
TTYAC3: MOVE T2,TTYALN ;GET LINE NUMBER
SETZM TTACTL(T2) ; INDICATE INACTIVE
RETBAD (MONX05)
;LINE WAS ALREADY ACTIVE. IF PERMANENT, IT MAY BE BECOMING
;ACTIVE. IN THAT CASE, MAKE IT ACTIVE.
TTYAC4: OKSKD1
JE TTPRM,(T2),RSKP
MOVE T3,JOBNO ;GET THIS JOB'S NUMBER
STOR T3,TCJOB,(T2) ;INDICATE IT OWNS THIS TERMINAL
SETZRO TTBAC,(T2) ;INDICATE NOT BECOMING ACTIVE
RETSKP
ENDSV. ;END STKVAR
;TTYDEA - DEALLOCATE A DYNAMIC BLOCK
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTYDEA
;RETURNS +1: FAILURE, (NO CASES CURRENTLY)
; +2: SUCCESS
RESCD
TTYDED::SAVELN ;ENTRY WITH T2/ DYNAMIC PTR
STKVAR <TTYDLN,TTYDAD>
DYNST
JRST TTYDE4
TTYDEA::TDCALL S,<<TV,TVTDET>>
NOP
TTYDE0::SAVELN
STKVAR<TTYDLN,TTYDAD>
TTYDE4: MOVEM T2,TTYDLN ;SAVE INTERNAL LINE NUMBER
CALL STADYN ;POINT TO DYNAMIC DATA
JRST TTYDE1 ;NOT ACTIVE. SHOULDN'T HAPPEN
JN TTNUS,(T2),TNUKIL ;HANDLE DECNET NVT SPECIALLY
JN TTPRM,(T2),TTYDE3 ;HANDLE PERMANENT BLOCK SPECIALLY
JN TTLCK,(T2),TTYDE2 ;IF LOCKED, WAIT FOR COUNT TO GO TO 0
JN TTSAL,(T2),TTYDE2 ;IF DOING SENDALL, WAIT UNTIL DONE
MOVEM T2,TTYDAD ;SAVE ADDRESS OF DYNAMIC DATA
CONSO PI,77000 ;SKIP NOSKED IF NOT AT PI LEVEL 7
NOSKD1 ;NO SCHEDULING WHILE CHNOFF IN FORCE
CHNOFF DLSCHN ;TURN OFF TTY CHANNEL
CALL TTRLOB ;RELEASE OUTPUT BUFFERS
MOVE T2,TTYDAD ;T2/ ADDRESS OF DYNAMIC DATA
CALL TTCIBF ;CLEAR INPUT, RELEASE BUFFERS IF NEEDED
MOVE T2,TTYDAD ;DYNAMIC DATA ADDRESS AGAIN
CALL TTXONF ;MAKE SURE IS NOT X-OFF'ED
MOVE T2,TTYDAD ;GET DYN ADDRESS
SETZRO TT%PGM,TTFLGS(T2) ;INSURE WE WILL TURN XOFF FLAGS OFF
TDCALL D,<<FE,TTEXF>,<MC,MCEXF>,<CH,CTHEXF>,<LH,LTEXF>> ;SET FE XOFF RECOGNITION
MOVE T3,TTYDLN ;GET LINE NUMBER
TMNE TT%AUT,TTSTAT(T3) ;IF LINE IS NOT AUTOSPEED
IFSKP.
TMNN TT%FEM,TTSTAT(T3) ;AND IS REMOTE..
ANSKP.
MOVE T1,TTSVPD(T2) ;RETRIEVE THE SAVED LINE SPEED
MOVEM T1,TTSPWD(T3) ;RESTORE LINE SPEED
ENDIF.
MOVE T2,TTYDLN ;GET BACK LINE NUMBER
SETZM TTACTL(T2) ;INDICATE NO DYNAMIC DATA
CHNON DLSCHN ;TURN CHANNEL BACK ON
CONSO PI,77000 ;SKIP OKSKED IF NOT AT PI LEVEL 7
OKSKD1 ;OK TO SCHED NOW
MOVE T1,TTYDAD ;T1/ ADDRESS OF BLOCK
CALL RELRES ;RELEASE THE RESIDENT SPACE
RETSKP ;SUCCESS
;LINE IS NOT ACTIVE. THIS SHOULD NOT HAPPEN
TTYDE1: MOVE T2,TTYDLN ;GET LINE NUMBER
BUG.(CHK,TTNAC7,TTYSRV,HARD,<Deallocating inactive line>,<<T2,TTYLIN>>,<
Cause: TTYDEA was called to deallocate a terminal's dynamic data block
but the line was inactive and had no block.
Data: TTYLIN - TTY line number
>)
RETSKP
;DYNAMIC DATA IS LOCKED OR SENDALL IN PROGRESS. REQUEST DEALLOCATION
;WHEN FINISHED
TTYDE2: SETONE TTDAL,(T2) ;REQUEST DEALLOCATION WHEN FINISHED
RETSKP
;PERMANENT BLOCK. DON'T DEALLOCATE IN THE USUAL WAY
TTYDE3: SETZM TTPSI(T2) ;CLEAR INTERRUPTS
SETZM TTDPSI(T2) ; AND DEFERRED INTERRUPTS
SETONE TCJOB,(T2) ;INDICATE NO OWNING JOB
SETONE TTPFK,(T2) ;AND NO SCTTY TREE
MOVE T1,TTYDLN ;T1/ LINE NUMBER
CALL CHKPTY ;IS THIS A PTY?
RETSKP ;NO.
CALL PTYFIN ;YES. INDICATE HUNGRY
RETSKP
ENDSV. ;END STKVAR
;ASGMSG - ASSIGN BLOCK FOR MESSAGE
;ASGMSL- ASSIGN FULL LENGTH MESSAGE BLOCK FOR SPECIAL PURPOSES
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL ASGMSG
; CALL ASGMSL
;RETURNS +1: FAILURE,
; T1/ ERROR CODE
; +2: SUCCESS,
; T2/ LINE NUMBER
RESCD
ASGMSG: TDZA T4,T4 ;EXTRA LENGTH
ASGMSL: MOVEI T4,TTDDLN-MSGLEN ;"LONG MESSAGE BLOCK"
STKVAR <ASGMLN>
MOVEM T2,ASGMLN ;SAVE LINE NUMBER
MOVSI T1,.RESP2 ;INDICATE CAN'T TAKE PAGE FAULT
HRRI T1,MSGLEN(T4) ;T1/ (SIZE,,PRIORITY)
MOVX T2,.RESTP ;EXTENDED SECTION, TERMINAL POOL
CALL ASGRES ;GET SOME FREE SPACE
RETBAD (MONX05) ;FAILED
MOVE T2,ASGMLN ;GET LINE NUMBER
CALL TTSETM ;INITIALIZE VALUES
SETONE TTMES,(T1) ;INDICATE MESSAGE BLOCK
TXO T1,TTSHBK ;SAY IS A SPECIAL BLOCK
MOVEM T1,TTACTL(T2) ;MAKE STATIC POINT TO DYNAMIC
AOSG TTQCNT ;FIRST SPECIAL LINE?
MOVEM T2,TTCQLN ;YES. START SCAN HERE THEN
TXZ T1,TTSHBK ;RETURN ADDRESSABLE BLOCK
RETSKP ;INDICATE SUCCESS
ENDSV. ;END STKVAR
;ASHSHT - ASSIGN A SHORT (SENDALL) BLOCK
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL ASGSHT
;RETURNS +1: FAILURE,
; T1/ ERROR CODE
; +2: SUCCESS,
; T1/BUFFER ADDRESS
; T2/ LINE NUMBER
SWAPCD
ASGSHT: LOAD T1,TTSTY,(T2) ; Get line type
CAIN T1,TT.TVT ; NVT?
RET ; Yes, don't do this then
STKVAR <ASGSLN>
MOVEM T2,ASGSLN ;SAVE LINE NUMBER
MOVSI T1,.RESP3 ;INDICATE CAN TAKE PAGE FAULT
HRRI T1,MSGLEN ;T1/ (SIZE,,PRIORITY)
MOVX T2,.RESTP ;EXTENDED SECTION, TERMINAL POOL
CALL ASGRES ;GET SOME FREE SPACE
RETBAD (MONX05,<MOVE T2,ASGSLN>) ;FAILED, MAKE SURE LINE # STILL SETUP
MOVE T2,ASGSLN ;GET LINE NUMBER
CALL TTSETS ;INITIALIZE VALUES
SETONE TTSHT,(T1) ;INDICATE MESSAGE BLOCK
RETSKP ;INDICATE SUCCESS
ENDSV. ;END STKVAR
SUBTTL JSYS Support Routines
;TTCOBF - CLEAR OUTPUT BUFFER
;TTCOB1 - ENTRY POINT FOR CALLING FROM WITHIN TTYSRV
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTCOB1
;RETURNS +1: ALWAYS
;IF LINE HAS NO OUTPUT BUFFERS, RETURNS QUIETLY. IF IT HAS A MESSAGE BLOCK,
;IGNORES LINKS. IF FULLY ACTIVE, HANDLES LINKS
RESCD
TTCOB1: SAVELN ;SAVE LINE NUMBER
CALL LCKTTY ;POINT TO DYNAMIC DATA
JRST [ JUMPLE T2,TTCOB3 ;IF BECOMING ACTIVE OR INACTIVE, NO BUFFERS
JE TTMES,(T2),TTCOB3 ;IF NOT A MESSAGE BLOCK, NO BUFFERS
CALL TTCBF9 ;MESSAGE BLOCK (HAS NO LINKS). CLEAR
CALLRET ULKTTY] ;ALLOW DEALLOCATION
CALL TTCBF9 ;DO IT
TTCOB3: CALLRET ULKTTY ;ALLOW DEALLOCATION
;TTCOBF - ENTRY FOR OUTSIDE OF TTYSRV
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTCOBF
;RETURNS +1: ALWAYS
;LINE MUST BE FULLY ACTIVE AND ITS DYNAMIC BLOCK LOCKED WHEN CALLED FROM OUTSIDE
TTCOBF::SAVELN
TTCOB2: MOVE C,TTLINK(B) ;GET LINES THAT THIS LINE IS LINKED TO
CAMN C,[-1] ;ANY LINKS?
CALLRET TTCBF2 ;NO. JUST CLEAR THIS LINE'S BUFFERS
;LINE IS LINKED TO ONE OR MORE LINES. LOOP THROUGH TTLINK, PICKING UP
;A LINE NUMBER AND CLEARING ITS OUTPUT BUFFERS UNTIL ALL LINKS ARE
;PROCESSED
PUSH P,B ;SAVE ADDRESS OF DYNAMIC DATA
TTCBF3: SETZ B, ;INITIALIZE TO GET LINE NUMBER
LSHC B,^D9 ;GET NEXT LINE LINKED TO
CAIN B,777 ;THIS FIELD BEING USED?
JRST TTCBF4 ;NO
CALL LCKTTY ;GET ADDRESS OF DYNAMIC DATA AND PREVENT DEALLOCATION
JRST [ CALL ULKTTY
JRST TTCBF4] ;NOT ACTIVE. DON'T DO ANYTHING
PUSH P,C ;SAVE LINK WORD
CALL TTCBF2 ;GO CLEAR BUFFER FOR LINKED LINE
CALL ULKTTY ;ALLOW DEALLOCATION
POP P,C ;RESTORE LINK WORD
TTCBF4: JUMPN C,TTCBF3 ;GO DO ALL OF THEM
;ALL LINKS HAVE BEEN PROCESSED. NOW PROCESS THE ORIGINAL LINE AND QUIT
POP P,B ;RESTORE ADDRESS OF DYNAMIC DATA
CALLRET TTCBF2 ;CLEAR BUFFERS FOR THIS LINE
;TTCBF2 - CLEAR OUTPUT BUFFER FOR ONE LINE
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTCBF2
;RETURNS +1: ALWAYS
;CALLER MUST HAVE CALLED LCKTTY ON THIS LINE
TTCBF2: CALL SKCOE ;SKIP CTRL-O INTERRUPT ENABLED
SKIPN CTRLOF ;NEW STYLE?
JRST TTCBF9 ;NO
CALL OWNTTY ;YES, TTY OWNED BY THIS JOB?
JRST TTCBF9 ;NO
JE TTFLO,(T2),R ;DO NOTHING UNLESS FLUSHING OUTPUT
NOSKD1
CHNOFF DLSCHN
TTCBF8: CALL GTOCHR ;GET CHAR FROM OUTBUF
JRST TTCBF7 ;NOW EMPTY
CAIE T1,TTOMRK ;A MARKER?
JRST TTCBF8 ;NO, KEEP FLUSHING
SETZRO TTFLO,(T2) ;CLEAR FLUSH FLAG
JRST TTCBF7 ;DONE
TTCBF9::NOSKD1
CHNOFF DLSCHN ;TURN OFF CHANNEL ALSO
JE TTSAL,(T2),TTCBF6 ;CHECK FOR SENDALL IN PROGRESS
CALL CLRSAL ;CLEAR IT
TTCBF6:
CALL CFEOB ;CLEAR FE OUTBUF
TTCOB5::SETZM TTOCT(2) ;ZERO OUTPUT COUNT
SETZB 3,TTOOUT(2) ;CLEAR OUTPUT POINTER
EXCH 3,TTOIN(2) ;CLEAR INPUT POINTER
CALL TTRLBF ;RELEASE BUFFERS
TTCBF7: CHNON DLSCHN
CALL TTXONP ;REACTIVATE OUTPUT IF NECESSARY
OKSKD1
TDCALL D,<<TV,TVTCOB>> ;CLEAR NVT OUTPUT BUFFER (SEND SYNCH)
CALLRET CHKBKO ;PERHAPS FORK WAITING FOR OBUF EMPTY
;OWNTTY - SKIP IF THIS TTY IS OWNED BY THIS JOB
; T2/ DYNAMIC PTR
OWNTTY: SKIPE INSKED ;SCHED?
RET ;YES, NOT A JOB
LOAD T1,TCJOB,(T2) ;GET CONTROLLING JOB FOR THIS TTY
CAME T1,JOBNO ;THIS JOB?
RET ;NO
RETSKP ;YES
;CLEAR OUTBUF OF FE
; T2/ DYNAMIC PTR
; RETURN +1 ALWAYS
CFEOB: TDCALL D,<<FE,TTCOB4>,<MC,MCCOBF>,<LH,LTCOBF>>;
RET
;TTCIBF - CLEAR INPUT BUFFER
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTCIBF (TTCIB0 TO CLEAR RESCAN POINTER TOO)
;RETURNS +1: ALWAYS,
; T2 PRESERVED
TTCIB0::PUSH P,2 ;SAVE ADDRESS OF DYNAMIC DATA
DYNST ;GET LINE NUMBER
CAMN 2,CTRLTT ;CONTROLLING TTY?
SETZM RSCNPT ;YES, CLEAR RESCAN POINTER TOO
POP P,2 ;RESTORE ADDRESS OF DYNAMIC DATA
TTCIBF::SAVELN ;SAVE LINE NUMBER
CONSO PI,77000 ;SKIP NOSKED IF NOT AT PI LEVEL 7
NOSKD1
SETZRO <TTRFG>,(T2) ;CLEAR BKJFN FLAG
SETZB T1,TTICT(T2) ;CLEAR COUNT OF INPUT CHARACTERS
STOR T1,TYLCH,(T2) ;CLOBBER LAST CH IN CASE CR
SETZB 3,TTIOUT(T2) ;CLEAR POINTER FOR REMOVING CHARACTERS
EXCH 3,TTIIN(2) ; AND POINTER FOR ADDING CHARACTERS
CALL TTRLBF ;RELEASE INPUT BUFFERS
CONSO PI,77000 ;SKIP OKSKED IF NOT AT PI LEVEL 7
OKSKD1
TDCALL D,<<CH,CTHCLI>> ;DO DEVICE-DEPENDENT STUFF
CALL SNDXON ;SEND XON IF NEEDED
RET
SWAPCD
;TTSIBE - SKIP IF INPUT BUFFER IS EMPTY
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ BYTE SIZE OF OPEN OR 0 IF A JFN WAS NOT GIVEN BY CALLER
; CALL TTSIBE
;RETURNS +1: INPUT BUFFER IS NOT EMPTY
; T1/ COUNT OF CHARACTERS
; +2: INPUT BUFFER IS EMPTY
; T1/ 0
;THIS ROUTINE COUNTS NUMBER OF CHARACTERS AVAILABLE FOR INPUT FROM LINE
;IN T2. THE COUNT IS RETURNED IN T1. THE QUANTITIES ACCUMULATED ARE
;THE FOLLOWING:
;
; 1) RECIRCULATED CHARACTER, LIKE IF BKJFN WAS DONE
; 2) RSCANED DATA(*)
; 3) TYPEAHEAD THAT'S STILL IN THE INPUT BUFFER
; 4) PHANTOM LINEFEED, ASSUMED IF LAST READ CHARACTER WAS CR
;
; (*) THERE IS A BUG HERE. THIS ROUTINE ONLY EXAMINES THE
; RSCAN BUFFER IF THE TERMINAL IS THE PROGRAM'S
; CONTROLLING TERMINAL. THE CORRECT PROCEDURE IS TO
; EXAMINE THE RSCAN BUFFER FOR WHICHEVER TERMINAL IS
; BEING INTERRAGATED. THIS IS A BIT TRICKY, SINCE THE
; RSCAN STATUS IS STORED IN SOMEON'S JSB, AND YOU FIRST
; HAVE TO FIGURE OUT WHO, THEN CALL SETJSB, ETC...
TTSIBE::LOAD T1,TTRFG,(T2) ;0 IF NO RECIRCULATED CHARACTER, 1 IF SO
PUSH P,T3 ;SAVE THE BYTE SIZE
PUSH P,T2 ;SAVE ADDRESS OF DYNAMIC DATA
DYNST ;GET LINE NUMBER
MOVE T3,FORKN ;GET JOB FORK NUMBER
LOAD T3,FRKTTY,(T3) ;GET POSSIBLE FORK CONTROLLING TERMINAL
CAIE T3,.TTDES(T2) ;IS SIBE BEING DONE ON FORK'S OWN TERMINAL?
CAMN T2,CTRLTT ;NO, IS THIS THE CONTROLLING TERMINAL FOR THIS JOB?
SKIPN T3,RSCNPT ;YES. GET RESCAN POINTER
JRST TTSIB1 ;NOT CONTROLLING OR POINTER IS 0
TTSIB2: ILDB T4,T3 ;PICK UP CHARACTER FROM RSCAN BUFFER
JUMPE T4,TTSIB1 ;LEAVE LOOP IF NO MORE.
AOJA T1,TTSIB2 ;COUNT LENGTH OF RSCAN BUFFER
TTSIB1: POP P,T2 ;RESTORE ADDRESS OF DYNAMIC DATA
POP P,T4 ;GET BACK BYTE SIZE
ADD T1,TTICT(T2) ;ADD CHARACTERS IN REGULAR INPUT BUFFER
LOAD T3,TT%DAM,TTFLGS(T2) ;GET CURRENT MODE
CAIE T4,10 ;BINARY MODE OPEN ON THE JFN?
JUMPN T3,[LOAD T3,TYLCH,(T2) ;NOT BINARY, CHECK LAST CHAR
LOAD T4,TYLMD,(T2) ; GET DATA MODE OF LAST CHAR
CAIN T3,.CHCRT ;CR?
CAIN T4,.TTBIN ; YES, INPUT IN NON-BINARY?
JRST .+1 ; NO TO EITHER, NO LF.
AOJA T1,.+1] ;YES TO BOTH, LF STILL AVAILABLE
TDCALL D,<<CH,CTHCKI>> ;DO DEVICE-DEPENDENT STUFF
CAILE T1,0 ;POSITIVE COUNT?
RET ;YES, SO TAKE NON-SKIP RETURN
RETSKP ;NO. SKIP
;TTSOBE - SKIP IF OUTPUT BUFFER IS EMPTY
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTSOBE
;RETURNS +1: OUTPUT BUFFER NOT EMPTY
; T1/ COUNT
; +2: OUTPUT BUFFER IS EMPTY
; T1/ 0
RESCD
TTSOBE::CALL SKCOE ;SKIP IF CTRL-O INTERRUPT ENABLED
SKIPN CTRLOF ;NEW STYLE?
IFSKP.
CALL OWNTTY ;JOB OWN TTY?
IFSKP.
MOVEI T1,TTOMRK ;YES, JUST PUT MARKER IN STREAM
CALL TCOUM
SETZ T1,
RETSKP ;SAY OUTBUF EMPTY
ENDIF.
ENDIF.
MOVE 1,TTOCT(2) ;GET # OF BYTES
JN TTOTP,(T2),R ;RETURN NOSKIP IF OUTPUT IS STILL ACTIVE
SKIPLE 1 ;BYTES STILL IN -10 MEMORY
RET ;NO. NONSKIP
TDCALL D,<<FE,TTSBEF>,<MC,MCSBEF>>
RETSKP ;DEVICE BUFFER (IF ANY) ALSO EMPTY
RET ;DEVICE BUFFER NOT EMPTY
;TTSOBF - SKIP IF OUTPUT BUFFER IS FULL
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTSOBF
;RETURNS +1: OUTPUT BUFFER IS NOT FULL
; T1/ COUNT
; +2: OUTPUT BUFFER IS FULL
; T1/ COUNT
SWAPCD
TTSOBF::LOAD 3,TOMAX,(2) ;CAPACITY OF OUTPUT BUFFER
MOVE 1,TTOCT(2) ;GET NUMBER OF CHARACTERS IN BUFFER
CAIL 1,0(3) ;FULL?
RETSKP ;YES. SKIP
RET ;NO. NONSKIP
;TTDOBE - DISMISS UNTIL OUTPUT BUFFER IS EMPTY
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTDOBE
;RETURNS +1: NEED TO RETRY
; +2 DONE. BUFFER IS EMPTY
;WAITS UNTIL OUTPUT BUFFER IS EMPTY
TTDOBE::CALL SKCOE ;SKIP IF CTRL-O INTERRUPT ENABLED
SKIPN CTRLOF ;NEW STYLE?
IFSKP.
MOVEI T1,TTOMRK ;YES, JUST PUT MARKER IN OUTPUT STREAM
CALL TCOUM
RETSKP
ENDIF.
CALL TSOBED ;SEE IF OUTPUT IN PIPE
IFSKP. <RETSKP> ;NO, RETURN OK
;CHARACTERS ARE PRESENT. DISMISS UNTIL THEY ARE GONE
TTDBE1: TDCALL D,<<PT,CHKPTA>> ;CHECK FOR INTERRUPT NEEDED
SETONE TTBKO,(T2) ;NOTE WAITING FOR OUTPUT EVENT
DYNST T1 ;GET STATIC DATA ADDRESS
CALL ULKTTY ;UNLOCK TTY
HRLZS T1 ;LINE # TO LH
HRRI 1,TTOBET ;1/(LINE NUMBER,,ROUTINE TO CALL)
MOVSI T2,FHV5 ;BLOCK PRIORITY
HDISMS
RET ;SAY NEED TO RETRY
;TTDIBE - DISMISS UNTIL INPUT BUFFER IS EMPTY
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTDIBE
;RETURNS +1: NEED TO RETRY
; +2 DONE. BUFFER EMPTY
;WAITS UNTIL INPUT BUFFER IS EMPTY
TTDIBE::SKIPG TTICT(T2) ;BUFFER EMPTY NOW?
RETSKP
DYNST T1 ;GET LINE NUMBER
CALL ULKTTY ;UNLOCK TTY
HRLZS T1 ;LINE # TO LH
HRRI 1,TTIBET ;1/(LINE NUMBER,,ROUTINE TO CALL)
MDISMS
RET ;NEED TO RETRY
;SCHEDULER TESTS FOR TTDOBE AND TTDIBE
RESCD
;TTOBET - CAUSES WAKEUP IF OUTPUT BUFFER IS EMPTY (INCLUDING CHARACTERS
;EN ROUTE TO THE LINE)
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
TTOBET::PUSH P,T4 ;PUT RETURN ON STACK SO RET, RETSKP WORK
HRRZ T2,T1 ;GET LINE NUMBER
JRST TTOBE0 ;DO THE WORK
;HERE FOR NORMAL CALL
; T2/ LINE NUMBER
; RETURN +1 OUT BUFFER NOT EMPTY
; +2 OUT BUFFER EMPTY
TSOBEX: SAVEAC <T2>
TTOBE0: CALL STADYN ;GET ADDRESS OF DYNAMIC DATA
RETSKP ;NOT ACTIVE. THIS SHOULDN'T HAPPEN
;ENTER HERE IF DYNAMIC PTR IN T2
; T2/ DYNAMIC PTR
; RETURN +1: NOT EMPTY
; +2: EMPTY
TSOBED: SKIPE TTOCT(T2) ;IS OUTPUT BUFFER EMPTY?
RET ;NO. DON'T WAKE UP
JN TTOTP,(T2),R ;NO IF STILL OUTPUT ACTIVE
TDCALL D,<<FE,TTSBEF>,<MC,MCSBEF>> ;CHECK DEVICE BUFFERING IF ANY
IFSKP. <RET> ;SKIPS IF BUFFER *NOT* EMPTY
SETZRO TTBKO,(T2) ;NOTE WAIT COMPLETED
RETSKP
;TTIBET - CAUSES WAKEUP IF INPUT BUFFER IS EMPTY
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
TTIBET: HRRZ T2,T1 ;GET LINE NUMBER
CALL STADYN ;GET ADDRESS OF DYNAMIC DATA
JRST 1(T4) ;NOT ACTIVE. THIS SHOULDN'T HAPPEN
SKIPE TTICT(T2) ;IS INPUT BUFFER EMPTY?
JRST 0(4) ;NOT EMPTY. DON'T WAKE UP
JRST 1(4) ;EMPTY. WAKE UP
;TAB GET/SET - PHASED OUT
SWAPCD
TTGTBS::
TTSTBS::RET
;TTRMOD - CODE TO DO THE RFMOD JSYS
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
;RETURNS +1: ALWAYS
; T1/JFN MODE WORD
;Note: If page width or length is greater than 177 octal, returns 1 in these
;fields. User must then do an MTOPR to get the real value.
TTRMOD::SAVELN
MOVE T1,TTFLGS(T2) ;READ MODES
LOAD T3,TPWID,(T2) ;GET WIDTH
LOAD T4,TPLEN,(T2) ;AND PAGE LENGTH
CAILE T3,177 ;OLD MAXIMUM VALUE
MOVEI T3,DFLWID ;TOO BIG. GET DEFAULT WIDTH
CAILE T4,177 ;OLD MAXIMUM VALUE
MOVEI T4,DFLLEN ;TOO BIG. GET DEFAULT LENGTH
STOR T3,TT%WID,T1 ;STORE OLD STYLE WIDTH
STOR T4,TT%LEN,T1 ;STORE OLD STYLE LENGTH
CALL TTCBM ;GET A TT%WAK FROM THE BREAK MASK
DYNST ;GET LINE NUMBER
JE TTCON,(T2),R ;RETURN UNLESS CARRIER IS ON
SETONE TT%CAR,T1 ;INDICATE CARRIER ON
RET
;TTSMOD - SET TERMINAL MODE
;ACCEPTS:
; T1/ JFN MODE WORD
; T2/ ADDRESS OF DYNAMIC DATA
;RETURNS +1: ALWAYS
;IMPLEMENTS SFMOD JSYS
;won't the stack be wrong if the ITERR is taken? Check now, push later?
TTSMOD::PUSH P,1
TRNE 1,400000 ;THIS BIT MUST BE ZERO
ITERR(DECRSV,<CALL ULKTTY>) ;NOT ZERO - ERROR RETURN
XOR 1,TTFLGS(2) ;FIND THE CHANGED BITS
ANDX 1,TT%OSP+TT%WAK+TT%IGN+TT%ECO+TT%DAM ;CHANGE ONLY THESE BITS
TDCALL D,<<CH,CTHSFM>> ;[7180] CTERM check discard state change
XORM 1,TTFLGS(2)
SKIPE CTRLOF ;NEW STYLE AND CHANGING OUTPUT SUPPRESS?
TXNN T1,TT%OSP
IFSKP. <
CALL SKCON ;SKIP IF CTRL-O NOT ENABLED
IFSKP. <
MOVEI T1,TTOMRK ;YES, PUT MARKER IN OUTPUT STREAM
CALL TCOUM>>
LOAD T1,TT%DAM,TTFLGS(T2) ;GET TERMINAL DATA MODE
STOR 1,TYLMD,(T2) ;CHANGE IT FOR PI LEV ALSO
POP P,T1
TXNE T1,TT%IGN ;SHOULD WE IGNORE THE TT%WAK BITS
RET ;YES - THEN DON'T FORCE WAKE-UP
CALL TTCFM ;COMPUTE AND SET FULL MASK
CALLRET TTFWAK ;FORCE WAKEUP
;TTRPOS - READ POSITIONS
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTRPOS
;RETURNS +1: ALWAYS,
; T1/ (LINE POSITION WITHIN PAGE,,CHARACTER POSITION WITHIN LINE)
TTRPOS::MOVE 1,TTLPOS(2) ;READ POSITION
RET
;TTSPOS - SET POSITION
;ACCEPTS:
; T1/ (LINE POSITION WITHIN PAGE,,CHARACTER POSITION WITHIN LINE)
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTSPOS
;RETURNS +1: ALWAYS
TTSPOS::MOVEM 1,TTLPOS(2) ;SET LINE CHARACTER POSITION
RET
;TTRCOC - READ CONTROL CHARACTER OUTPUT CONTROL WORDS
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTRCOC
;RETURNS +1: ALWAYS,
; T1/ FIRST WORD
; T3/ SECOND WORD
TTRCOC::MOVE 1,FCMOD1(2) ;READ CONTROL CHARACTER MODES
MOVE 3,FCMOD2(2)
RET
;TTSCOC - SET CONTROL CHARACTER OUTPUT CONTROL WORDS
;ACCEPTS:
; T1/ FIRST WORD
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ SECOND WORD
; CALL TTSCOC
;RETURNS +1: ALWAYS
TTSCOC::MOVEM 1,FCMOD1(2) ;SET CONTROL CHARACTER MODES
MOVEM 3,FCMOD2(2)
RET
;TTBKPT - "BACKUP" INPUT POINTER - CAN ONLY BACKUP ONE
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTBKPT
;RETURNS +1: FAILURE
; +2: SUCCESS
TTBKPT::MOVE C,FORKN ;GET OUR FORK NUMBER
LOAD C,FRKTTY,(C) ;GET POSSIBLE CONTROLLING TERMINAL
CAIE C,.TTDES(B) ;USE RSCAN BUFFER IF READING FROM CONTROLLING TERMINAL
CAMN 2,CTRLTT ;JOB CONTROLLING TTY?
SKIPN A,RSCNPT ;YES, USING RESCAN BUFFER?
JRST TTBKP1 ;NO, DO NORMAL THING
MOVE C,RSCNBP ;GET POINTER TO RSCAN BUFFER
HRLI C,(POINT 7,0,34) ;SEE IF AT START OF BUFFER
CAMN A,C
JRST TTBKP1 ;YES, DONT BACK IT UP MORE
CALL DBP ;BACK UP BYTE POINTER
MOVEM A,RSCNPT ;PUT IT BACK
RETSKP ;INDICATE SUCCESS
TTBKP1: CALL LCKTTY ;GET DYNAMIC DATA AND LOCK DYNAMIC BLOCK
JRST [ CALL ULKTTY ;NOT ACTIVE. CAN'T BACKUP
RETBAD (TTYX01)]
TMNE TTRFG,(T2) ;HAS BACKUP ALREADY BEEN DONE?
JRST [ CALL ULKTTY ;YES. CAN'T DO ANOTHER
RETBAD (BKJFX1)]
SETONE TTRFG,(T2) ;NOT SET. SET IT TO BE NOTICED AT NEXT TCI
CALL ULKTTY ;ALLOW DEALLOCATION
RETSKP ;SUCCESS
;GET DEVICE DEPENDENT BITS
TTGSTS::LOAD T3,TLTYP,(T2) ;GET VECTOR ADR FOR THIS TTY
SETZ T1,
XCT PARTBL(T3) ;SEE IF PARITY BIT WOULD GET SET
CAIE T1,0
MOVX T1,GD%PAR ;YES
RET ;AND DONE
;TTSSPD - CODE TO DO A SET LINE SPEED
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; USER 3/ INPUT SPEED,,OUTPUT SPEED
;
; CALL TTSSPD
;
;RETURNS +1: ON ERROR (CURRENTLY ONLY FOR ACJ REJECTION)
; +2: ON ALL OTHER CONDITIONS
;
;SETS SPEEDS OF FRONT END LINES ONLY. IGNORES ALL OTHERS
;IMPLEMENTS THE .MOSPD FUNCTION OF MTOPR
TTSSPD::
STKVAR <TTSLIN> ;SAVE LINE NUMBER HERE
CAIL B,NLINES ;VALID LINE NUMBER?
RETSKP ;NO. JUST RETURN QUIETLY
MOVEM B,TTSLIN ;SAVE LINE NUMBER
UMOVE C,C ;GET SPEED
GTOKM (.GOTBR,<B,C>,[RETBAD ()]) ;DO GETOK IF NECESSARY AND RETBAD IF ERROR
TDCALL S,<<FE,TTSSP2>,<CH,CTHSSP>>
MOVE B,TTSLIN ;GET BACK LINE NUMBER
CALL LCKTTY ;GET DYNAMIC DATA ADDRESS
JRST [ CALL ULKTTY ;FAILED TO LOCK, NOT INTERESTING
RETSKP] ; UNLOCK AND RETURN QUIETLY
MOVE T1,T2 ;GET DYNAMIC DATA ADDRESS
MOVE T2,TTSLIN ;GET LINE NUMBER AGAIN
CALL SETOBF ;SET BUFFERING
MOVE T2,T1 ;GET DYNAMIC DATA ADDRESS
CALL ULKTTY ;DONE, UNLOCK DATA
RETSKP ; AND RETURN SUCCESS
ENDSV. ;END STKVAR
;TTRSPD -READ OUT THE SPEED OF A TERMINAL
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTRSPD
;RETURNS +1: ALWAYS,
; USER T3/ (INPUT SPEED,,OUTPUT SPEED)
; OR
; -1 IF NOT PHYSICAL TERMINAL OR SPEED NOT SET
;IMPLEMENTS THE .MORSP FUNCTION OF MTOPR
TTRSPD::CAIL B,NLINES ;LEGAL LINE NUMBER?
JRST TTRSP2 ;NO. RETURN NO SPEED ;@@NO CTERM HERE
TDCALL S,<<MC,RSKP>,<PT,RSKP>,<TV,RSKP>> ;SKIP IF SPEED NOT KNOWN
SKIPA C,TTSPWD(B) ;GET SPEED SETTING
TTRSP2: SETO C, ;NO. ASSUME UNKNOWN
UMOVEM C,C ;RETURN IT TO THE CALLER
SETZ C, ;GET AN ACCUMULATOR
TMNE TTFEM,(B) ;REMOTE?
TXO C,MO%RMT ;YES
TMNE TTAUT,(B) ;AUTO?
TXO C,MO%AUT ;YES
XCTU [HLLM C,2] ;RETURN FLAGS
RET ;AND DONE
;TTSSIG - ROUTINE TO SET THE "IGNORE INPUT ON INACTIVE LINE" BIT
;
;ACCEPTS IN T1/ NEW SETTING (0 OR 1)
; T2/ LINE NUMBER
; CALL TTSSIG
;RETURNS: +1 ALWAYS
TTSSIG::STOR T1,TTIGI,(T2) ;STORE NEW SETTING OF IGNORE INPUT BIT
RET ;DONE, RETURN
;ROUTINE TO INIT OUTPUT BUFFERING PARAMETERS.
;CALLED FROM TTSETL AND TTSSPD.
;ONLY CALLED FOR NON-CTY ASSIGNS
; T1/ DYNAMIC DATA ADDRESS
; T2/ LINE NUMBER
;RETURNS: +1 ALWAYS
;ALL REGS PRESERVED
RESCD
SETOBF: SAVET ;SAVE ALL REGS
MOVE T3,TTSPWD(T2) ;GET LINE SPEED
CAME T3,[-1] ;KNOWN SPEED?
IFSKP.
TDCALL S,<<TV,TVTSOF>,<CH,CTHSOF>,<MC,NRTSOF>,<LH,LTSOF>> ;(T2/T3,T4)NO. DEVICE-DEPENDENT.
RET ;NONE. GIVE UP.
ELSE.
HRRZS T3 ;YES. GET OUTPUT SPEED
MOVE T4,IBFRC ;ASSUME SLOW SPEED
CAILE T3,LOWSPD ;ACCEPTABLE?
MOVE T4,IBFRC1 ;NO. GET OTHER VALUE
ENDIF.
MOVEM T4,TTBFRC(T1) ;SET COUNT FIELDS
SETZ T4,0 ;NO BUFFER COUNT IF LOW SPEED
CAILE T3,LOWSPD
MOVEI T4,OVRBCT ;SET OVER QUOTA BUFFER COUNT
STOR T4,TTOCN,(T1) ;SET COUNT
SETZRO TTOMX,(T1) ;INDICATE OVERBUFFER NOT IN USE
RET ;AND DONE
SWAPCD
; .MOTPS - ENABLE FOR PSI INTERRUPTS ON NON-CONTROLLING TERMINAL I/O
;CALL WITH:
;B/ TERMINAL NUMBER
;USER AC3/ POINTER TO USER ARGUMENT BLOCK
;BLOCK+0/ LENGTH OF BLOCK (INCLUDING THIS WORD)
;BLOCK+1/ OUTPUT PSI,,INPUT PSI
TTYNPS::ACVAR <W1> ;GET A REGISTER
MOVE W1,B ;SAVE LINE NUMBER
MOVEI A,1 ;OFFSET 1 IN ARG BLOCK
CALL GETWRD ;GET IT
RETBAD(MTOX13) ;ERROR, NO SUCH ARG
HLRZ A,B ;GET OUTPUT PSI CHANNEL
CALL TTNPCK ;VALIDITY CHECK IT
RETBAD(MTOX14) ;ILLEGAL PSI CHANNEL
HRRZ A,B ;GET INPUT PSI CHANNEL
CALL TTNPCK ;VALIDITY CHECK IT
RETBAD(MTOX14) ;ILLEGAL PSI CHANNEL
EXCH W1,B ;GET BACK LINE NUMBER SAVE CHANNELS
CALL LCKTTY ;LOCK TTY DATABASE
RETBAD(TTYX01,<CALL ULKTTY>)
HLRZ A,W1 ;GET OUTPUT PSI
STOR A,TTOPSI,(B) ;STORE IN TTY DATABLOCK
STOR W1,TTIPSI,(B) ;STORE INPUT PSI
CAMN W1,[-1] ;TURNING OFF BOTH CHANNELS?
JRST TTYNP1
MOVE A,FORKX ;NO, GET CALLING FORK NUMBER
STOR A,TTPSFK,(B) ;STORE IT AS WELL
SETONE PSUTPS ;FLAG .MOTPS DONE TO THIS FORK
JRST TTYNP2
TTYNP1: SETONE TTPSFK,(B)
TTYNP2: CALL ULKTTY ;RELEASE TTY DATABASE
RETSKP ;SUCCESS
;VALIDITY CHECK AN ASSIGNABLE PSI CHANNEL
TTNPCK: CAIE A,-1 ;-1 = DEASSIGN
CAIG A,5 ;0-5 OK
RETSKP
CAIL A,^D24
CAILE A,^D35
RET ;NOT 24-35, ILLEGAL
RETSKP ;OK
ENDAV. ;END ACVAR W1
;TTDTPS - REMOVE CURRENT FORK FROM TTPSFK OF ALL TERMINALS
TTDTPS::SAVET
SETZRO PSUTPS ;CLEAR BIT THAT GOT US HERE
MOVEI T1,NLINES-1 ;GET HIGHEST LINE NUMBER
TTDTP1: MOVE T2,T1 ;GET LINE NUMBER
CALL LCKTTY ;LOCK DATABASE
JRST TTDTP2 ;NOT FULLY ACTIVE, SKIP
LOAD T3,TTPSFK,(T2) ;GET FORK RECEIVING INT
CAME T3,FORKX ;SAME AS CURRENT?
JRST TTDTP2 ;NO, SKIP IT
SETONE TTPSFK,(T2) ;YES, CLEAR IT
TTDTP2: CALL ULKTTY ;UNLOCK DATABASE
SOJGE T1,TTDTP1 ;LOOP THRU ALL LINES
RET
;TTSNTS - CODE TO DO A SET/RESET NON-TERMINAL STATUS FOR TTY LINE.
; THIS IS PRIMARILY FOR SUPPRESSING UNWANTED SYS MESSAGES
;ACCEPTS:
; 2/ LINE TO SET STATUS OF
; 3/ STATUS VALUE (1 TO TURN OFF MESSAGES, 0 TO TURN ON)
; CALL TTSNTS
;RETURNS +1: ALWAYS
;IGNORES NON-FRONT END LINES
;IMPLEMENTS .MOSNT FUNCTION OF MTOPR
TTSNTS::CAIL B,NLINES ;LEGAL LINE NUMBER?
RET ;NO. IGNORE IT THEN
TDCALL S,<<FE,TTSNT1>,<PT,RSKP>> ;@@ NO CTERM DISPATCH HERE
SKIPA
RET ;DON'T CHANGE IT
STOR T3,TTNTS,(T2) ;SAVE THE NEW STATUS
RET
;TTRNTS - READ TTY NON-TERMINAL DEVICE STATUS
;ACCEPTS:
; 2/ INTERNAL LINE NUMBER
; CALL TTRNTS
;RETURNS +1 : ALWAYS,
; 3/ STATUS (0 IF SYSTEM MESSAGES ACCEPTED, 1 IF NOT)
;IMPLEMENTS .MORNT FUNCTION OF MTOPR
TTRNTS::SETZ C, ;GET DEFAULT VALUE
CAIL B,NLINES ;A VALID TERMINAL LINE?
RET ;NO. ASSUME DEFAULT
LOAD T3,TTNTS,(T2) ;GET NON-TERMINAL STATUS
RET
RESCD ;[7310] Make TTSNTF & FENTM resident
;TTSNTF - Implements .MOSTF function of MTOPR. code to do a set/clear
;some terminal flags. The program should perform a .MORTF to read
;all current settings, set the bits to be chaged, and then do .MOSTF.
;Call with:
;
; 2/ line to set status of
; 3/ bits
; CALL TTSNTF
;Returns +1: always
TTSNTF::SAVEAC <A>
CAIL B,NLINES ;LEGAL LINE NUMBER?
RET ;NO. IGNORE IT THEN
TDCALL S,<<FE,FENTM>> ;FOR MO%NTM, FE LINES ARE SPECIAL
LDB A,[POINTR C,MO%NTM] ;PICK UP THE FLAG
STOR A,TTNTM,(B) ;AND SAVE IT
LDB A,[POINTR C,MO%NUM] ;PICK UP THE FLAG
STOR A,TTNUM,(B) ;AND SAVE IT
RET
;Here for FE lines
;Turns sendalls off in the FE: if refusing terminal messages
; or
;Turns sendalls on in the FE:
; If we're allowing messages and the monitor thinks
; sendalls should be allowed.
FENTM: SAVEAC <C>
TXNE C,MO%NTM ;GOING TO REFUSE ALL MESSAGES ?
JRST SNTM2 ;YES
LOAD C,TTNTS,(B) ;GET SYSTEM-MESSAGE STATUS
CAIE C,.MOSMN ;ALREADY REFUSING THOSE ?
SNTM2: CALL TTNTM1 ;NO, MAKE FE TURN OFF SENDALLS
RET
SWAPCD ;[7310]
;TTRNTF - Read terminal flags. Implements .MORTF function of MTOPR
;Accepts:
; 2/ internal line number
; CALL TTRNTM
;Returns +1 : always,
; 3/ flags
TTRNTF::SETZ C, ;GET DEFAULT VALUE
CAIL B,NLINES ;A VALID TERMINAL LINE?
RET ;NO. ASSUME DEFAULT
LOAD A,TTNTM,(B) ;GET TERMINAL INHIBIT STATUS
DPB A,[POINTR C,MO%NTM] ;SAVE IT
LOAD A,TTNUM,(B) ;GET REFUSE USER-MESSAGE STATUS
DPB A,[POINTR C,MO%NUM] ;SAVE IT
RET
;Read the two character escape sequence
;Implements the MTOPR% function .MORTC - read the two character escape sequence
;CALL TTERED with
; T2/ line number
;Returns +1 on failure with error in T1
;Returns +2 on success with
; T1/ two ASCII character escape sequence, right justified.
TTERED::CALL STADYN ;Get dynamic data
RETBAD (TTYX01) ;Failed.
LOAD T1,TTCH1,(T2) ;Get first character of the sequence
LOAD T3,TTCH2,(T2) ;Get first character of the sequence
LSH T1,7 ;Put them
IOR T1,T3 ; together
RETSKP ;Success
;Set up the two character escape sequence
;Implements the MTOPR% function .MOTCE - set up the two character escape sequence
;CALL TTESET with
; T1/ two ASCII character escape sequence, right justified.
; T2/ line number
; T3/ action routine index (index into table TTESC)
;Returns +1 on failure, +2 on success
;NOTE: cannot allow any characters that could have a PSI associated with it
; as the first character of the sequence.
TTESET::CALL STADYN ;Get dynamic data
RET ;Failed
LDB T4,[POINT 7,T1,28] ;Get the first character
ANDI T1,177 ;Get the second character
CAMN T1,T4 ;Are they the same ?
RET ;Yes. Not allowed
SKIPE T1 ;Are either of
SKIPN T4 ; them null ?
RET ;Yes. Not allowed.
STOR T4,TTCH1,(T2) ;Set the
STOR T1,TTCH2,(T2) ; sequence.
STOR T3,TTETP,(T2) ;Set the action routine index.
RETSKP
;NWTRRH - Return network information for terminal
;
; Given the line #, returns the originating hostname, line and
; network type. Places this info in the users NTINF% .NWRRH
; argument block. NTINF has already checked the user arguments
; for validity.
;
; Call with T1/ Output jfn or designator
; T2/ Line number
; T3/ Address of users .NWRRH arg block
;
; Returns + 1 on error with T1/ error code
; + 2 on sucess
MXHL==^D8 ;MAX LENGTH OF HOSTNAME (WORDS)
NWTRRH::TRVAR <NWTJFN,NWTDB,NWTUAB,<NWTARG,.NWNU1+1>,<NWTHST,MXHL>>
MOVEM T1,NWTJFN
MOVEM T3,NWTUAB
CALL LCKTTY ;GET ADR OF DYNAMIC DATA, PREVENT DEALLOCATION
RETBAD <TTYX01>,<CALL ULKTTY>
MOVEM T2,NWTDB ;SAVE THE TDB ADR
XMOVEI T1,NWTARG ;POINT AT TEMP ARG BLOCK
MOVEM T2,.NWLIN(T1) ;SAVE TDB
SETZM .NWNNU(T1) ;CLEAR THE NODE NUMBERS (WORDS 1 AND 2)
SETZM .NWNU1(T1)
LOAD T4,TLTYP,(T2) ;GET THE LINE TYPE, FOR NOW AND FOR TDCALX
MOVE T3,LTYTAB(T4) ;CONVERT TO USER USABLE NUMBER
MOVEM T3,.NWTTF(T1) ;SAVE IT IN ARG BLOCK
XMOVEI T3,NWTHST ;GET POINTER TO TEMPORARY HOSTNAME AREA
TXO T3,<OWGP. 7,> ;FORM A OWGBP
MOVEM T3,.NWNNP(T1) ;SAVE IN ARG BLOCK
MOVEI T3,MXHL*5 ;MAX # OF BYTES IN HOSTNAME
MOVEM T3,.NWABC(T1) ;SAVE IN COUNT WORD OF TEMP ARG BLOCK
TDCALX T4,<<TV,TVRRH>,<LH,LHRRH>,<MC,MCRRH>,<CH,CHRRH>>,<JRST DEFRRH>
RETBAD <>,<CALL NWTTDB>
;NWTRRH...
CALL NWTTDB ;UNLOCK TDB
XMOVEI T1,NWTARG ;POINT AT TEMP ARG BLOCK
MOVE T2,NWTUAB ;AND AT USER ARG BLOCK
DMOVE T3,.NWNNU(T1) ;GET NODE NUMBERS
XCTU [DMOVEM T3,.NWNNU(T2)] ;SAVE IN USER ARG BLOCK
MOVE T3,.NWTTF(T1) ;GET FLAGS AND TYPES WORD
UMOVEM T3,.NWTTF(T2) ;AND SAVE IN USER ARG BLOCK
MOVE T1,NWTJFN ;GET USER OUTPUT DESIGNATOR
XMOVEI T2,NWTHST ;GET POINTER TO TEMPORARY HOSTNAME AREA
TXO T2,<OWGP. 7,> ;FORM A OWGBP
CALL TSOUTA ;DEPOSIT THE STRING
RETBAD () ;ERROR
MOVE T3,NWTUAB ;GET ADR OF USER ARG BLOCK
UMOVEM T1,.NWNNP(T3) ;UPDATE USERS BYTE POINTER
RETSKP
;HERE TO UNLOCK THE TDB
NWTTDB: MOVE T2,NWTDB ;GET DYNAMIC DATA ADDRESS
CALL ULKTTY ;UNLOCK IT
RET
ENDTV.
;Here to set up user arg block when line is not a network terminal
;
; Call with T1/ address of internal arg block
;
; ARG+.NWABC/ # of bytes available for host name
; ARG+.NWFNC/ not used
; ARG+.NWNNP/ byte pointer to store hostname string
; ARG+.NWLIN/ address of dynamic data for line
; ARG+.NWTTF/ flags, and network and terminal types
; ARG+.NWNNU/ node # word 1
; ARG+.NWNU1/ node # word 2
;
; Returns + 1 on error with T1/ error code
; + 2 on success
DEFRRH: SETZ T2,
IDPB T2,.NWNNP(T1) ;OUTPUT A NULL TO HOSTNAME
MOVX T4,NW%NNN ;SAY "NO NODE NAME KNOWN"
IORM T4,.NWTTF(T1)
MOVX T4,NW%NNT ;SAY "NON-NETWORK TERMINAL"
DPB T4,[POINT 9,.NWTTF(T1),17]
RETSKP
;TSOUTA - Output host string to user
;
; Call with T1/ user jfn or string ptr
; T2/ pointer to asciz hostname string
;
; Return + 1 on failure with T1/ error code
; + 2 on success, T1/ updated
TSOUTA: MOVE T3,T2 ;MOVE HOSTNAME POINTER TO T3
TSOUT1: ILDB T2,T3 ;GET A HOSTNAME BYTE
CALL TBOUTA ;GO OUTPUT THE CHARACTER
RETBAD () ;ERROR
JUMPE T2,RSKP ;DONE ON NULL
JRST TSOUT1 ;TRY FOR MORE
;TBOUTA - Output byte to user
;
; Call with T1/ user jfn or string ptr
; T2/ byte
;
; Return + 1 on failure with T1/ error code
; + 2 on success, T1/ updated T2/ destroyd
TBOUTA: SAVEAC <T2>
TLNN T1,777777 ;STRING POINTER?
JRST [BOUT ;NO, CAN DO BOUT
ERJMPR R ;[7119] ILLEGAL DESIGNATOR
RETSKP]
TLC T1,777777 ;YES
TLCN T1,777777 ;LH = -1?
HRLI T1,440700 ;YES. FILL IN
XCTBU [IDPB T2,T1] ;DEPOSIT THE BYTE
PUSH P,T1 ;SAVE THE POINTER
SETZ T2,
XCTBU [IDPB T2,T1] ;STORE NULL BYTE AT END
POP P,T1 ;RESTORE THE POINTER
RETSKP
;TTSTIH - TEST INPUT REQUIRED
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTSTIH
;RETURNS +1: ALWAYS,
; 1/ 0 IF NOT HUNGRY
; -1 IF HUNGRY
;HUNGRY IS DEFINED AS EITHER OF THE FOLLOWING:
; 1 - THERE IS NO CONTROLLING JOB FOR THIS LINE (IE, CTRL/C
; WILL CAUSE JOB CREATION)
; 2 - A FORK IS IN INPUT WAIT ON THE LINE AND THERE IS CURRENTLY
; NO REASON TO WAKE IT UP (IT WILL READ A CHARACTER THAT
; IS SENT TO THIS LINE)
;NOT HUNGRY IS RETURNED IF ANY OF THE FOLLOWING IS TRUE:
; 1. THE CONTROLLING JOB NUMBER IS INVALID
; 2. NO FORK IS IN INPUT WAIT ON THIS LINE
; 3. FORCED WAKEUP IS SET SO THAT THE WAITING FORK WILL WAKE UP SOON
; 4. THE OUTPUT BUFFER IS ABOUT TO OVERFLOW (INPUT CHARACTERS ARE THROWN
; AWAY WHEN NOT ECHOED)
; 5. AN INTERRUPT IS PENDING FOR THE WAITING FORK
TTSTIH::LOAD T3,TCJOB,(T2) ;GET OWNING JOB IF ANY
CAIN T3,-1 ;IS THIS TERMINAL ASSIGNED?
JRST [ JE TTBAC,(T2),TTSTI2 ;NO, HUNGRY UNLESS BECOMING ACTIVE
JRST TTSTI1]
CAIL T3,NJOBS ;VALID JOB NUMBER?
JRST TTSTI1 ;NO, RETURN FALSE
LOAD T1,TWFRK,(T2) ;GET FORK IN INPUT WAIT
CAIN T1,-1 ;IS THERE ONE?
JRST TTSTI1 ;NO. SAY NOT HUNGRY
JN TTFWK,(T2),TTSTI1 ;YES. IF ABOUT TO WAKEUP BECAUSE INPUT BUFFER
TMNE FKINX,(T1) ;IF INTERRUPT IS PENDING, SAY NOT HUNGRY
TTSTI1: TDZA 1,1 ;RETURN NOT HUNGRY
TTSTI2: SETO 1, ;RETURN HUNGRY
RET
;ROUTINES TO SET/READ MODE FIELDS. CALLED FROM MTOPR FUNCTIONS
;IN FILMSC
;SET/READ TERMINAL WIDTH
;ACCEPTS: T1/ NEW WIDTH
; T2/ ADDRESS OF DYNAMIC DATA
TTSWID::JUMPE T1,TTSWI1 ;ALLOW ZERO WIDTH
CAIL T1,10 ;MUST BE GREATER THAN 10
CAIL T1,400 ;AND LESS THAN 400
RET ;ILLEGAL WIDTH
TTSWI1: STOR T1,TPWID,(T2) ;GOOD VALUE. STORE IT
TDCALL D,<<CH,CTHSWD>>
RETSKP ;DONE
TTRWID::LOAD T1,TPWID,(T2) ;READ WIDTH
RET ;DONE
;SET/READ TERMINAL LENGTH
;SAME ARGS AS ABOVE
TTSLEN::JUMPE T1,TTSLE1 ;ALLOW ZERO
CAIL T1,2 ;MUST BE GREATER THAN 2
CAIL T1,400 ;AND LESS THAN 400
RET ;INVALID LENGTH
TTSLE1: STOR T1,TPLEN,(T2) ;GOOD VALUE. STORE IT
TDCALL D,<<CH,CTHSLN>>
RETSKP ;DONE
TTRLEN::LOAD T1,TPLEN,(T2) ;READ LENGTH
RET ;DONE
;SET/READ LINE COUNTER
TTSLC:: MOVEM A,TTLINE(B) ;STORE NEW VALUE
RET
TTRLC:: MOVE A,TTLINE(B)
RET
;SET/READ MAXIMUM LINE COUNTER
TTSLM:: MOVEM A,TTLMAX(B)
RET
TTRLM:: MOVE A,TTLMAX(B)
RET
;SET/CLEAR XOFF/XON PROCESSING BIT
; T3/ 0= honor XON/XOFF
; 1= don't honor XON/XOFF
TTXSET::SKIPE T3 ;WANT TO DO OUTPUT STOP?
MOVEI T3,1 ;YES. MAKE SURE BIT IS THERE
STOR T3,TTNXO,(T2) ;STORE NEW VALUE
CALLRET TTXONP ;AND START OUTPUT IF NECESSARY
;READ VALUE OF XOFF BIT
TTRXOB::LOAD T1,TTNXO,(T2) ;GET THE BIT
RET ;DONE
;SET/READ PAGE PAUSE CHARACTER
; T1/ PAUSE CHARACTER ,, UNPAUSE CHARACTER
; T2/ DYNAMIC PTR
TTPPCS::HRRZ T3,T1 ;CHECK UNPAUSE CHARACTER
CAIN T3,PGMOFC ;CTRL-S?
ITERR (TTYX02,<CALL ULKTTY>) ;YES, DOESN'T WORK
TDCALL D,<<CH,CTHPPC>> ;DO DEVICE-DEPENDENT STUFF
STOR T1,TTUPC,(T2)
HLRZ T1,T1
STOR T1,TTPPC,(T2)
RET
TTPPCR::LOAD T1,TTUPC,(T2)
LOAD T3,TTPPC,(T2)
HRL T1,T3
RET
SUBTTL Full Wake-Up Classes Support
RESCD
;SET/READ FUNCTIONS FOR FIELD WIDTH AND 128-CHARACTER MASK WAKE-UPS
;TTSBM - SET BREAK MASK
;ACCEPTS: T1/ADDRESS OF FOUR WORD MASK
; T2/DYNAMIC DATA ADDRESS
;RETURNS: +1, ALWAYS
; DESTROYS T3 & T4
TTSBM:: TDCALL D,<<CH,CTHSBM>>
DMOVE T3,(T1) ;FIRST TWO WORDS OF MASK
DMOVEM T3,TTCHR1(T2) ;SET NEW VALUES
DMOVE T3,2(T1) ;LAST TWO WORDS OF MASK
DMOVEM T3,TTCHR3(T2) ;SET LAST TWO WORDS
RET
;TTRBM - READ BREAK MASK
;ACCEPTS: T1/ADDRESS OF FOUR WORD AREA
; T2/DYNAMIC DATA ADDRESS
;RETURNS: +1, ALWAYS
; DESTROYS T3 & T4
TTRBM:: DMOVE T3,TTCHR1(T2) ;GET MASK VALUES
DMOVEM T3,(T1) ;FIRST TWO WORDS OF MASK
DMOVE T3,TTCHR3(T2) ;GET LAST TWO WORDS
DMOVEM T3,2(T1) ;AND STORE
RET
;TTSFW - SET THE FIELD WIDTH
;ACCEPTS: T1/FIELD WIDTH
; T2/DYNAMIC DATA ADDRESS
;RETURNS: +1,ALWAYS
TTSFW:: SUB T1,TTICT(T2) ;SUBTRACT NUMBER ALREADY IN BUFFER
JUMPLE T1,[ SETZRO TTFCNT,(T2) ;YES - DISABLE FIELD WIDTH
CALLRET TTFWAK] ;GO WAKE PROCESS
STOR T1,TTFCNT,(T2) ;SET THE FIELD WIDTH
RET
;TTRFW - READ THE FIELD WIDTH
;ACCEPTS:; T2/DYNAMIC DATA ADDRESS
;RETURNS: +1,ALWAYS
; T1/FIELD WIDTH
TTRFW:: LOAD T1,TTFCNT,(T2) ;READ THE FIELD WIDTH
RET
SWAPCD
;ROUTINE TO COMPUTE TT%WAK BITS FROM FULL CHARACTER BIT MASK
;ACCEPTS: T1/ TERMINAL MODE WORD
; T2/ DYNAMIC DATA ADDRESS
; CALL TTCBM
; RETURN +1, T1/ UPDATED TERMINAL MODE WORD
; T3/ CLOBBERED
; T4/ CLOBBERED
TTCBM: SAVEAC <Q1>
TXZ T1,TT%WAK ;WE SET THIS FIELD
TXZ T1,TT%IGN ;MAKE SURE THE "IGNORE" BIT IS OFF
MOVSI Q1,-NRPTB ;SET TO SCAN WORDS OF TABLE
XMOVEI T4,TTCHR1(T2) ;POINT TO BREAK MASK WORD 1
TTSW1: MOVE T3,0(T4) ;GET USER MASK
TDNE T3,RPTB(Q1) ;ANY PUNCTUATION HERE?
TXO T1,TT%WKP ;YES, SET WAKEUP ON PUNCT
TDNE T3,RATB(Q1) ;ANY ALPHANUMERICS HERE?
TXO T1,TT%WKA ;YES, SET WAKEUP ON ALPHA
AOS T4
AOBJN Q1,TTSW1 ;SCAN ALL MAK WORDS
MOVE T3,TTCHR1(T2) ;GET USERS FIRST WORD
TXNE T3,MO%WN1-400 ;ANY FORMAT CONTROLS HERE?
TXO T1,TT%WKN ;YES, SET WAKEUP ON NON-FORMAT CTL
TXNE T3,MO%WF1-400 ;ANY FORMAT CONTROLS HERE?
TXO T1,TT%WKF ;YES, SET WAKEUP ON FORMAT CTL
TXNE T1,TT%WAK ;SPECIAL CASE FOR ESCAPE AND RUBOUT
RET ;ALL SET - ESCAPE AND RUBBOUT TAKEN CARE OF
TXNE T3,400 ;IS THERE AN ESCAPE?
TXO T1,TT%WKF ;YES - THEN SET IN TT%WAK
MOVE T3,TTCHR4(T2) ;SEE IF RUBOUT IS ON
TXNE T3,20
TXO T1,TT%WKF ;YES - THEN SET IT
RET
;PUNCTUATION MASK TABLE
RPTB: MO%WP1-400 ;0-37, EXCLUDE ESC
MO%WP2 ;40-77
MO%WP3 ;100-137
MO%WP4-20 ;140-177, EXCLUDE RUBOUT
NRPTB==.-RPTB
;ALPHANUMERICS MASK TABLE
RATB: MO%WA1-400 ;0-37, EXCLUDE ESC
MO%WA2 ;40-77
MO%WA3 ;100-137
MO%WA4-20 ;140-177, EXCLUDE RUBOUT
; ROUTINE TO COMPUTE AND SET FULL BREAK MASK FROM THE TT%WAK BITS
;
;ACCEPTS: T1/ MODE WORD
; T2/ ADDRESS OF DYNAMIC DATA
;RETURNS: +1, WITH MASK SET
TTCFM: STKVAR <<TTSMH1,2>,<TTSMH2,2>,<TTMS1,4>>
DMOVEM T3,TTSMH1 ;SAVE T3 & T4
DMOVEM Q1,TTSMH2 ;SAVE Q1 & Q2
SETZB T3,T4
SETZB Q1,Q2
TXNN T1,TT%WAK ;ARE ANY BITS SET?
JRST TTMSET ;NO - THEN CLEAR WAKE-UP MASK AND GO
TXO T3,400 ;SET THE ESCAPE BIT
TXO Q2,20 ;SET THE RUBOUT
TXNE T1,TT%WKF ;WANT FORMATTING CONTROLLS
TXO T3,MO%WF1 ;YES - SET FORMATTING CONTROLS
TXNE T1,TT%WKN ;WANT NON-FORMATTING CONTROLS?
TXO T3,MO%WN1 ;YES - SET THEM UP
TXNE T1,TT%WKP ;WANT PUNCTUATION?
JRST [ TXO T3,MO%WP1
TXO T4,MO%WP2
TXO Q1,MO%WP3
TXO Q2,MO%WP4
JRST .+1]
TXNE T1,TT%WKA ;WANT ALPHANUMERICS?
JRST [ TXO T3,MO%WA1
TXO T4,MO%WA2
TXO Q1,MO%WA3
TXO Q2,MO%WA4
JRST .+1]
TTMSET: DMOVEM T3,TTMS1 ;SAVE FIRST TWO WORDS OF MASK
XMOVEI T3,TTMS1 ;POINT TO SECOND TWO WORDS
ADDI T3,2
DMOVEM Q1,(T3) ; LAST TWO WORDS
MOVE T3,T1
XMOVEI T1,TTMS1 ;POINT TO FULL MASK
CALL TTSBM ;SET THE MASK
MOVE T1,T3
DMOVE T3,TTSMH1 ;RESTORE T3 AND T4
DMOVE Q1,TTSMH2 ; AND Q1 AND Q2
RET
ENDSV. ;END STKVAR
;ROUTINE USED BY TEXTI TO COMPUTE PARITY FOR AN EDITING
;CHARACTER.
; T2/ THE CHARACTER.
;RETURNS +1 ALWAYS. WITH EVEN PARITY IN B
TTCMPP::SKIPGE CHITAB(T2) ;NEED PARITY ON THIS CHARACTER?
TRO T2,200 ;YES. SO DO IT
RET ;AND DONE
SUBTTL TTMSG JSYS
;TTMSG JSYS - Sends messages to all lines
;Accepts:
; AC1/ -1 for all lines on this system
; or flags,,.TTDES+n where n is terminal number to send to
; or 0 zero means arg in AC3 for historical use
; AC2/ pointer to string
; TTMSG
;
;Returns +1: always
;Flags given in AC1:
; TT%REM==1B1 ;Remote sendall (local sendall if not set)
; .TTCIN==37B17 ;CI node designator (.CSALL==37 for all)
; .TTTTY==777777B35 ;Terminal line number
;Can ITERR, but returns success if line refuses sendall.
;Note: The TTNTS bit, which prevents sendall to a given line, applies to TTMSG
;with T1 containing -1 (for all lines), not with T1 containing a specific line
;number.
;TTMSG...
.TTMSG::MCENT
TRVAR <TTMSBY,TTMSCT,TTCAPF,TTNODE,TTREM,TTY> ;[7.1076]
SETZM TTCAPF ;[7.1056] Assume no privileges
SETZM TTREM ;[7.1076] And assume local
CALL CKMMOD ;[7.1056] Is caller in monitor mode?
IFSKP. ;[7.1056] Skip if yes
AOS TTCAPF ;[7.1056] Set priv word to +1 for monitor
ELSE. ;[7.1056]
MOVE D,CAPENB ;[7.1056] Get capabilities
TXNE D,SC%WHL!SC%OPR ;[7.1056] Is he privileged?
SETOM TTCAPF ;[7.1056] Yes, set priv word to -1 for user
ENDIF. ;[7.1056]
SKIPN TTCAPF ;ENABLED?
SKIPL CTRLTT ;NO, MUST NOT BE DETACHED
IFSKP. <ITERR GTDIX1>
;TTMSG...
MOVEM A,TTY ;[7.1076] Save destination TTY
IFGE. A ;[7.1076] Was -1 supplied (send all on local node)?
TXNN A,TT%REM ;[7.1076] Doing a remote send?
IFSKP. ;[7.1076] If so,
LOAD D,.TTCIN,A ;[7.1076] Get CI node to send to
MOVEM D,TTNODE ;[7.1076] And save it here
MOVS D,[.CSALL] ;[7.1076] Get send to all node indicator
CAME D,TTNODE ;[7.1076] User trying to send to all nodes?
IFSKP. <SETOM TTNODE> ;[7.1076] If so, indicate all nodes
CALL SC.PRT ;[7.1076] (/A) Get our port number
ITERR () ;[7.1076] If no port, tell user to get lost
CAMN A,TTNODE ;[7.1076] Is the node ours?
IFSKP. ;[7.1076] No...
SETOM TTREM ;[7.1076] Say remote send
SKIPGE A,TTNODE ;[7.1076] Doing all nodes?
IFSKP. ;[7.1076] If not,
CAIL A,0 ;[7.1076] CI node negative?
CAIL A,C%SBLL ;[7.1076] Or too big?
ITERR (TTMSX3) ;[7.1076] Say bad CI node
MOVE A,TTY ;[7.1076] Restore original terminal number
ENDIF. ;[7.1076] Finished with node validation
ELSE. ;[7.1076] Node is ours
SETZM TTREM ;[7.1076] Indicate local TTMSG%
SETZM TTNODE ;[7.1076] And make sure nothing is left over here
HRRZS A ;[7.1076] Make it local by getting just TTY number
ENDIF. ;[7.1076]
ENDIF. ;[7.1076]
ENDIF. ;[7.1076]
;Get the sendall lock next
NOINT
TTMSH1: AOSN SALLCK ;[7.1056] Can we get the sendall lock?
IFSKP. ;[7.1056] Nope
OKINT
MOVEI A,^D30000 ;WAIT 30 SEC MAX
CALL SETBKT ;SETUP TIMER TEST WORD
HRRI A,SALTST
MDISMS ;WAIT FOR LOCK FREE OR 30 SEC
NOINT
AOSE SALLCK ;HAVE LOCK NOW?
ITERR TTMSX1 ;NO, SOMETHING PROBABLY BUSTED
ENDIF.
MOVEI A,1 ;INIT COUNT OF ACTIVE LINES, +1 WHILE HEREIN
MOVEM A,SALCNT
;[7.1056] Check user's line number argument as furnished in AC1. An
;[7.1056] undocumented feature allows you to specify 0 in AC1 and the argument
;[7.1056] is pulled from AC3. Monitor is allowed to supply a line number of -2
;[7.1056] (DTESRV), -1, and or course .TTDES+number (subject to TTNTM). A
;[7.1056] prived user can specify -1 for all lines or .TTDES+number (subject to
;[7.1056] TTNTM). Anyone can specify .TTDES+number subject to TTNTM and TTDUM.
UMOVE A,1 ;[7.1056] Get user's specified line number
SKIPN A ;[7.1056] Is AC1 equal to 0?
UMOVE A,3 ;[7.1056] Yes, use AC3 (undocumented feature?)
CAME A,[-2] ;[7.1056] Send to RSX20F only?
IFSKP. ;[7.1056] If so
SKIPLE TTCAPF ;[7.1056] Is the monitor requesting this?
JRST TTMSH4 ;[7.1056] Monitor and RSX20F only, allow it
ENDIF. ;[7.1056] User will get a GTJIX2 (ill line num)
CAME A,[-1] ;[7.1056] Is it a send to all lines?
IFSKP. ;[7.1056] If so
SKIPN TTCAPF ;[7.1056] Is the user prived or monitor?
ITERR GTDIX1,<CALL ULKSAL> ;[7.1056] (/) Reset lock, OKINT, give err
ELSE. ;[7.1056] Otherwise
HRRZ A,TTY ;[7.1076] Just get terminal number
SKIPE TTREM ;[7.1076] Doing remote send?
IFSKP. ;[7.1076] If not, validate terminal
CAIL A,.TTDES ;[7.1076] Make sure TTY argument is not
CAIL A,.TTDES+NLINES ;[7.1076] too small and not too large
ITERR GTJIX2,<CALL ULKSAL> ;[7.1076] (/) Reset lock, OKINT, give err
MOVEI B,.TTDES(A) ;[7.1076] Remove device designator (400000)
JN TTNTM,(B),TTRJCT ;[7.1076] If destination inhibiting, reject
JE TTNUM,(B),TTMSH4 ;[7.1076] Jump if not refusing users
SKIPN TTCAPF ;[7.1076] Wheel, Operator, or monitor?
JRST TTRJCT ;[7.1076] If destination refusing users, reject
ELSE. ;[7.1076] Send is remote
LOAD D,.TTTTY,A ;[7.1076] Get destination terminal number
CAIE D,.TTTTY ;[7.1076] Trying all terminals on remote?
IFSKP. ;[7.1076] If so,
SKIPN TTCAPF ;[7.1076] Allow only if he has privs
ITERR GTDIX1,<CALL ULKSAL> ;[7.1076] Unlock send all lock, OKINT and error
ENDIF.
SKIPL TTNODE ;[7.1076] Trying to send to all nodes?
IFSKP. ;[7.1076] If so,
SKIPN TTCAPF ;[7.1076] Let him if he is prived
ITERR GTDIX1,<CALL ULKSAL> ;[7.1076] Unlock send all lock, OKINT and error
ENDIF. ;[7.1076]
ENDIF. ;[7.1076]
ENDIF. ;[7.1056]
;[7.1056] Line number has been checked, now make the sendall buffer
TTMSH4: UMOVE B,2 ;[7.1056] Pick up the byte pointer
TLC B,-1 ;CHECK SOURCE PTR
TLCN B,-1 ;HAD A -1 IN LH?
HRLI B,(POINT 7,) ;YES. GET STANDARD BYTE POINTER
UMOVEM B,B ;RETURN BYTE POINTER
SKIPL P3,A ;SAVE ARG, ALL LINES?
TXZ P3,.TTDES ;NO, GET LINE NUMBER
BLCAL. GETSAL,<<.,SALBFR>,<.,TTMSCT>,<.,TTMSBY>,TTCAPF,TTNODE,TTY,TTREM> ;[7.1076]
;SETUP SENDALL BFR
ITERR ,<CALL ULKSAL> ;[7.1056] (/) Release lock, OKINT, ITRAP error
;BUFFER IS SET UP WITH TEXT. IF THERE ARE NO CHARACTERS,
;WE ARE DONE.
SKIPN TTMSCT ;AT LEAST ONE BYTE?
JRST TTMS50 ;NO. GO FINISH
SKIPN TTREM ;[7.1076] Doing remote send?
IFSKP. ;[7.1076] If so,
HRLZ A,TTNODE ;[7.1076] Get node number
HRRI A,.TTDES(P3) ;[7.1076] And saved line number
MOVE B,SALBFR ;[7.1076] Retrieve the send all buffer
MOVE C,TTMSCT ;[7.1076] Pass on character count in buffer
MOVE D,TTCAPF ;[7.1076] Pass on privs
XCALL (XCDSEC,CLTMSG) ;[7.1076] (A,B,C,D/) Do the remote sends
ITERR ,<CALL RELSAL ;[7.1076] (/) Release send all buffer and release lock
OKINT> ;[7.1076] Go OKINT and return an error
SKIPL TTNODE ;[7.1076] Are we doing ALL nodes?
JRST TTMS51 ;[7.1076] No, then we are done
HRRZ A,TTY ;[7.1076] Get terminal line number back
CAIN A,.TTTTY ;[7.1076] Did user want to send to all?
SETO P3, ;[7.1076] Yes, indicate all lines on this system too
ENDIF. ;[7.1076]
JUMPL P3,TTMS25 ;[7.1056] Jump if it is a sendall
MOVE B,P3 ;SINGLE LINE, GET LINE NUMBER
TDCALL S,<<FE,TTMSSN>,<MC,MCCKSA>,<TV,TVMSNT>,<CH,RSKP>,<LH,LTSALL>> ;SKIP TO SEND
JRST TTMS50 ;SKIP THIS LINE
CALL SALLIN ;DO THE LINE
JFCL ;FAILED. IGNORE IT.
JRST TTMS50 ;DONE
;GET THE FIRST LINE OF THIS LINE TYPE
TTMS25: SETZ C, ;[7.1056] Send all, start with line type 0
TTMS26: MOVE B,TT1LIN(C) ;GET FIRST LINE OF THIS TYPE
JUMPL B,TTMS24 ;JUMP IF NO LINES OF THIS TYPE
JRST TTMS20 ;GO DO IT
;GO TO NEXT LINE. IF THE LINE TYPE CHANGES, DON'T PROCEED WITH THE NEW
;LINE. INSTEAD, GO TO THE NEXT LINE TYPE AFTER THE ONE JUST PROCESSED.
;THIS CODE ASSUMES THAT ALL LINES OF A GIVEN TYPE ARE NUMBERED CONSECUTIVELY.
TTMS21: LOAD C,TTSTY,(B) ;GET CURRENT TYPE
ADDI B,1 ;GO TO NEXT LINE
CAIL B,NLINES ;BEYOND END OF LINES?
JRST TTMS24 ;YES. GO TO NEXT LINE TYPE
LOAD A,TTSTY,(B) ;GET TYPE OF NEW LINE
CAME C,A ;SAME AS PREVIOUS LINE?
JRST TTMS24 ;NO. GO TO NEXT LINE TYPE
;SAME LINE TYPE AS PREVIOUS ONE. DO ACCORDING TO DEVICE DEPENDENT CODE
;DEVICE-DEPENDENT CODE RETURNS:
; +1: DON'T DO THIS LINE
; +2 AND T2/-1: DON'T DO ANY LINES OF THIS TYPE
; +2 AND T2/LINE NUMBER: DO THIS LINE
TTMS20: MOVE A,SALBFR ;PASS BYTE PTR
HRLI A,(POINT 9,0)
MOVE D,C ;SAVE THE LINE TYPE FOR THE TDCALL
MOVE C,TTMSCT ;PASS COUNT
CAMN P3,[-2] ;[7.1056] Send to front end only?
IFSKP. ;[7.1056] No, send to all lines
TDCALL S,<<FE,TTMSAL>,<MC,MCCKSA>,<PT,TTMSNO>,<TV,TVMSNT>,<CH,RSKP>,<LH,LTSALL>>;
JRST TTMS21 ;DON'T DO THIS LINE. GO ON TO NEXT LINE
ELSE. ;[7.1056]
TDCALL S,<<FE,TTMSAL>>,<JRST TTMSNO> ;[7.1056] (A,B,C/B) Do CFE lines
JRST TTMS21 ;[7.1056] Don't do this line, check next
ENDIF. ;[7.1056]
MOVE C,D ;RESTORE LINE TYPE
JUMPL B,TTMS24 ;SKIP THE ENTIRE GROUP
;HERE WHEN DEVICE DEPENDENT CODE WANTS THE SENDALL DONE FOR IT
TTMS22: JN TTNTM,(B),TTMS21 ;DON'T DO IF NO TERMINAL MESSAGES
JN TTNTS,(B),TTMS21 ;DON'T DO IF NON-TERMINAL
CALL SALLIN ;DO SENDALL FOR THE LINE
JFCL ;FAILED. IGNORE IT.
JRST TTMS21 ;THEN GO GET NEXT LINE
;FINISHED THE CURRENT LINE TYPE OR THE LINE TYPE IS NOT TO BE PROCESSED
;GO TO THE NEXT TYPE
TTMS24: AOS C ;GO TO NEXT LINE TYPE
CAIL C,NLTYPS ;BEYOND END OF LEGAL TYPES?
JRST TTMS50 ;YES. DONE
JRST TTMS26 ;DO NEXT TYPE
;HERE WHEN ALL LINES HAVE BEEN PROCESSED FOR CURRENT BUFFERFUL.
;WAIT UNTIL ALL ARE SENT
TTMS50: CALL DECSAL ;SEE IF ANY LINES GOING NOW
OKINT
JRST MRETN
;RETURN -1 IN B TO CAUSE ALL LINES OF THIS TYPE TO BE SKIPPED
TTMSNO: SETO B,
RETSKP
TTMS51: CALL RELSAL ;[7.1076] (/) Release send all storage
OKINT ;[7.1076] Interrupts are OK
JRST MRETN ;[7.1076] And back to user
;HERE WHEN THE MESSAGE IS REJECTED BY THE DESTINATION TERMINAL
TTRJCT: CALL ULKSAL ;[7.1056] (/) Clear the lock, go OKINT
ITERR TTMSX2 ;GENERATE "REJECTED" MESSAGE
;[7.1056] Here to release SALLCK and go OKINT (used for error routines)
;[7.1056] Returns +1 always, OKINT and SALLCK unlocked.
ULKSAL: SETOM SALLCK ;[7.1056] Release the lock
OKINT ;[7.1056] OK for interrupts now
RET ;[7.1056] Return to caller
;SALLIN - DO SENDALL TO A SINGLE LINE
;ACCEPTS:
; T2/ LINE NUMBER
SWAPCD
SALLIN: SAVELN ;SAVE LINE NUMBER
STKVAR <SALLLN>
MOVEM T2,SALLLN ;SAVE LINE NUMBER
JN TTSHU,(T2),R ;IF LINE SHUT OFF, FORGET IT
NOINT
NOSKED
CALL STADYN ;DOES LINE ALREADY HAVE DYNAMIC DATA?
IFSKP.
SALLI2: TMNN <TTSAL,TTHPO>,(T2) ;YES, SENDALL PTR FREE?
JRST SALLI5 ;YES, GO AHEAD
CALL LCKTT ;LOCK THE TTY DATA WHILE WE DISMIS
OKINT
MOVEI T1,SALWAT ;WAIT TEST FOR SENDALL PTR FREE
HRL T1,SALLLN ;LINE NUMBER
MDISMS
NOSKED ;NOSKED AGAIN
CALL ULKTT ;UNLOCK THE TTY DATA
JRST SALLI2 ;TRY AGAIN
ENDIF.
;SALLIN...
JUMPG T2,SALLI5 ;HAS A MESSAGE BLOCK. OK TO USE
JUMPL T2,[ OKSKED ;GO OKSKED FIRST
OKINT ;AND OKINT
RET] ;LINE IS BECOMING ACTIVE. CAN'T USE IT
MOVE T2,SALLLN ;GET LINE NUMBER
SETOM TTACTL(T2) ;INDICATE BECOMING ACTIVE
OKSKED
CALL ASGSHT ;GO GET A SHORT BLOCK
JRST [ SETZM TTACTL(T2) ;RESET ACTIVE POINTER
OKINT
RETBAD]
NOSKD1
TXO T1,TTSHBK ;SAY IS A SPECAIL
MOVEM T1,TTACTL(T2) ;SAVE DYNAMIC STORAGE ADDRESS
AOSG TTQCNT ;FIRST SPECIAL LINE?
MOVEM T2,TTCQLN ;YES. START SCAN HERE THEN
TXZ T1,TTSHBK ;MAKE ADDRESSABLE BLOCK
MOVE T2,T1
SALLI5: AOS SALCNT ;INCREMENT COUNT OF LINES DOING SENDALL
MOVE T1,SALBFR ;GET SENDALL BFR ADDRESS
HRLI T1,670000 ;MAKE BYTE PTR
MOVEM T1,TTSAL2(T2) ;SAVE POINTER TO SENDALL STRING
MOVE T1,TTMSCT ;GET COUNT OF CHARACTERS
STOR T1,TSALC,(T2) ;SAVE COUNT OF SENDALL STRING
SETONE TTSAL,(T2) ;INDICATE LINE IS DOING A SENDALL
SETZ T3, ;FAKE OUT STRTOU
CALL STRTOU ;START OUTPUT IF NEEDED
MOVE T3,TTMSCT ;GET CHAR COUNT
IDIVI T3,^D10 ;MINIMUM OUTPUT RATE, 10 CHARS/SEC
ADDI T3,5 ;PLUS A SMALL PAD
STOR T3,TSALT,(T2)
CALL TSENDQ ;QUEUE A CHECK OF THE LINE
OKINT
RETSKP
ENDSV. ;END STKVAR
ENDTV. ;END TRVAR
;PERIODIC ROUTINE TO UNHANG STUCK SENDALL LINES
;CALLED FROM DOLINE (TTCH7)
; T2/ LINE NUMBER
RESCD ;RESDIENT STUFF
CKSALL:
SAVEAC <T1>
MOVE T1,T2 ;SAVE LINE NUMBER
CALL STADY ;STILL ACTIVE?
RET ;NO, DONE
JE TTSAL,(T2),R ;DONE IF NO LONGER DOING SENDALL
LOAD CX,TINTL,(T2) ;TCO 6.1561 GET INTERNAL LINE NUMBER
JN TTSHU,(CX),[CALLRET CLRSAL] ;IF LINE SHUT OFF, CLEAR IMMED.
DECR TSALT,(T2) ;COUNTDOWN SECONDS
JN TSALT,(T2),[CALLRET TSENDQ] ;NOT EXPIRED, QUEUE ANOTHER CHECK
CALLRET CLRSAL ;EXPIRED, CLEAR THE LINE
;QUEUE A CHECK OF A LINE DOING A SENDALL
; T2/ DYNAMIC PTR
TSENDQ: SAVEAC <T2>
MOVEI T1,^D1000 ;ONE SECOND
LOAD T2,TINTL,(T2) ;NEED LINE NUMBER HERE
MOVEI T3,CKSALL ;ROUTINE TO CALL
CALLRET TTQAD ;QUEUE IT
;CLEAR SENDALL STATE FOR LINE
; T2/ DYNAMIC PTR
CLRSAL::SETZRO <TSALC>,(T2) ;CLEAR SENDALL POINTER, COUNT
SETZM TTSAL2(T2) ;[6.1354] (T2) NEEDED
SETZRO TTSAL,(T2) ;INDICATE NO LONGER DOING SENDALL
IFQN. TTDAL,(T2) ;DID SOMEBODY TRY TO DEALLOCATE THIS?
CALL TTYDED ;YES, DO IT NOW
NOP
ENDIF.
DECSAL::SOSE SALCNT ;[7.1056] Decrement count of sendall lines
RET ;[7.1056] Return if someone still using it
;[7.1056] Fall thru to release storage and lock
;RELEASE SENDALL STORAGE
RELSAL: SAVEAC <T1,T2>
MOVE T1,SALBFR
CALL RELRES
SETOM SALLCK ;RELEASE LOCK
RET
;WAIT FOR LINE TO FINISH USING SENDALL PTR
;CALLED AS SCHEDULER TEST
; T1/ LINE NUMBER
; JSP T4,SALWAT
; +1: STILL WAITING
; +2: READY
SALWAT::HRRZ T2,T1 ;GET LINE NUMBER
CALL STADYN ;GET POINTER TO DYNAMIC DATA
JRST 1(T4) ;FAILURE, SHOULD NEVER HAPPEN
TMNE <TTSAL,TTHPO>,(T2) ;STILL DOING IT?
JRST 0(T4) ;YES
JRST 1(T4) ;NO, WAKEUP
;TEST FOR SALLCK FREE OR TIME EXPIRED
; T1/ VALUE FOR TIME TEST
SALTST::SKIPGE SALLCK ;LOCK FREE?
JRST 1(T4) ;YES, WAKEUP
JRST BLOCKT ;NO, CHECK TIME
SWAPCD
;GETSAL - GET SENDALL BUFFER AND STORE LINE OF TEXT IN IT
;RETURNS +1: FAILURE
; +2: SUCCESS,
; @TTMSCT/ COUNT OF BYTES
; @TTMSBY/ LAST BYTE
; @TTMSBF/ BUFFER ADDRESS
; TTCAPF/ -1 IF PRIVILEGED
;[7.1076] Add the following to BLCAL.
; NODE/ Destination node to receive message (unchanged upon return)
; DESTTY/ Destination terminal (unchanged upon return)
; REMOTE/ 0 if send is local, (unchanged upon return)
GETSAL: BLSUB. <TTMSBF,TTMSCT,TTMSBY,TTCAPF,NODE,DESTTY,REMOTE> ;[7.1076]
STKVAR <SAVPTR,<SAVNOD,2>,ERROR> ;[7.1076] Temp storage
UMOVE B,B ;GET BYTE PTR
SETZ C, ;INIT COUNT
GETSB2: XCTBU [ILDB A,B] ;SCAN BYTES
ERJMP [RETBAD ARGX10] ;CAN'T REFERENCE IT
JUMPE A,GETSB1 ;NUL IS END OF STRING
CAIN A,.CHLFD ;LF?
ADDI C,4 ;YES, WILL INCLUDE 4 FILLS
AOJA C,GETSB2 ;COUNT CHARS
GETSB1: MOVEM C,@TTMSCT ;SAVE COUNT
SKIPN TTCAPF ;PRIVILEGED?
ADDI C,^D85 ;[7.1076] No, figure in header
CAIL C,TSALCM ;CHECK THE MAXIMUM ALLOWED
RETBAD (ENQX19) ;TOO BIG
ADDI C,4 ;ROUND UP
IDIVI C,4 ;COMPUTE NUMBER WORDS REQUIRED
BLCAL. ASGRSB,<C,[.RESP3],[RS%SE0!.RESTP]> ;GET RES STG FROM TERMINAL POOL
RETBAD() ;FAILED - SHOULDN'T HAPPEN
MOVEM A,@TTMSBF ;SAVE ADDRESS
HRLI A,(POINT 9,0) ;BUILD BYTE PTR - 8-BIT, INCLUDES PARITY BIT
SKIPE TTCAPF ;CAPABILITIES?
IFSKP.
HRROI B,[ASCIZ /From /] ;[7.1076] No, must prefix header
CALL GSALCP ;BUILD STRING IN RES STG
HRROI B,USRNAM+1
CALL GSALCP ;USER NAME
HRROI B,[ASCIZ / on node /] ;[7.1076]
CALL GSALCP ;[7.1076] (A,B/A) Prefix to node
HRROI B,OURNAM ;[7.1076] Node name kept here
CALL GSALCP ;[7.1076] (A,B/A) Put node name in
HRROI B,[ASCIZ / line /]
CALL GSALCP
MOVE B,CTRLTT
MOVEI C,^D8 ;LINE NUMBER, OCTAL
NOUT
NOP
HRROI B,[ASCIZ / to /] ;[7.1076] Prime destination
CALL GSALCP ;[7.1076] (A,B/A)
SKIPN REMOTE ;[7.1076] Doing a remote send?
IFSKP. ;[7.1076] If so, fill in "to node"
SKIPL NODE ;[7.1076] Doing all nodes?
IFSKP. ;[7.1076] If so,
HRROI B,[ASCIZ /all nodes /] ;[7.1076] Say so
CALL GSALCP ;[7.1076] (A,B/A) And put in sendall buffer
ELSE. ;[7.1076] If not all nodes
HRROI B,[ASCIZ /node /] ;[7.1076] Say which one
CALL GSALCP ;[7.1076] (A,B/A)
MOVEM A,SAVPTR ;[7.1076] Save byte pointer a minute
MOVE A,NODE ;[7.1076] Get CI node number
CALL CFSNOD ;[7.1076] (A/B,C) Now get CFS node name
IFNSK. ;[7.1076] If failed,
MOVEM A,ERROR ;[7.1076] Stash error while we cleanup
MOVE A,@TTMSBF ;[7.1076] Return send all buffer to terminal free space
CALL RELRES ;[7.1076] (A/) Give it back
MOVE A,ERROR ;[7.1076] Retrieve error code
RETBAD () ;[7.1076] And vamoose
ENDIF. ;[7.1076]
DMOVEM B,SAVNOD ;[7.1076] Save node name
MOVE A,SAVPTR ;[7.1076] Get saved byte pointer back
HRRI B,SAVNOD ;[7.1076] Put node name in send all buffer
HRLI B,(POINT 8,) ;[7.1076] We're talking 8-bit bytes for nodes
CALL GSALCP ;[7.1076] (A,B/A) Store it
HRROI B,[ASCIZ / /] ;[7.1076] Neatness counts, put space
CALL GSALCP ;[7.1076] (A,B/A) after node name
ENDIF. ;[7.1076]
ENDIF. ;[7.1076] Done with remote section
HRRZ C,DESTTY ;[7.1076] Get destination terminal
CAIE C,.TTTTY ;[7.1076] Are we doing all terminals?
IFSKP. ;[7.1076] If so,
HRROI B,[ASCIZ /all lines/] ;[7.1076] Say doing all lines
CALL GSALCP ;[7.1076] (A,B/A) And make it regular
ELSE. ;[7.1076] Else make line singular
HRROI B,[ASCIZ /line /] ;[7.1076]
CALL GSALCP ;[7.1076] (A,B/A) Update send all buffer
HRRZ B,DESTTY ;[7.1076] Get line number ready for JSYS
TXZ B,.TTDES ;[7.1076] Remove terminal designator part
MOVEI C,^D8 ;[7.1076] Display it in decimal
NOUT% ;[7.1076] Put it in send all string
NOP ;[7.1076] Won't happen
ENDIF. ;[7.1076]
HRROI B,[ASCIZ /: /]
CALL GSALCP
HRRZ B,A ;COMPUTE NUMBER BYTES IN HEADER STRING
SUB B,@TTMSBF ;NUMBER FULL WORDS
IMULI B,4 ;NUMBER BYTES
ADDM B,@TTMSCT ;ADJUST COUNT
LDB B,[POINT 3,A,2] ;P FIELD, HIGH-ORDER 3 BITS
MOVN B,B
ADDI B,4 ;NUMBER BYTES IN LAST (PARTIAL) WORD
ADDM B,@TTMSCT ;ADJUST COUNT
ENDIF.
;Loop through characters in user's string, copying to internal buffer. Add
;fill after line feed. Stop at end of line or when buffer is full, whichever
;is first.
MOVE C,A ;DEST BYTE PTR
MOVE D,@TTMSCT
SETZ P5, ;SET FLAG FOR <CR> TO ZERO
GETSA1: XCTBUU [ILDB P1,B] ;GET NEXT BYTE
ERJMP [MOVE A,@TTMSBF ;FAILED, RETURN STORAGE
CALL RELRES
RETBAD(ARGX10)] ;AND RETURN TO CALLER
JUMPE P1,GETSA6 ;STOP ON NULL
ANDI P1,177 ;USE ONLY 7-BIT ASCII
SKIPE TTCAPF ;PRIV'ED?
JRST GETSA2 ;YES ALL CHARS ARE ACCEPTABLE
CAIL P1," " ;BETWEEN SPACE AND
CAILE P1,"Z"+40 ;LOWER CASE Z?
SKIPA ;YES MUST BE A CONTROL CHARACTER
JRST GETSA2 ;REGULAR CHARACTERS ARE OK
CAIN P1,"M"-100 ;CR?
JRST GETSA4 ;YES
CAIN P1,"J"-100 ;LF?
JRST GETSA5 ;YES
CAIE P1,"G"-100 ;BELL?
CAIN P1,"I"-100 ;TAB?
JRST GETSA2 ;YES THEY ARE OK
JRST GETSA1 ;NON NICE CHARACTER SO DO NOT DEPOSIT IT
GETSA4: AOS P5 ;INCREMENT FLAG FOR <CR>
SOJL D,GETSA6 ;COUNT CHARACTERS
JRST GETSA1 ;NOT END OF STRING
GETSA5: SKIPG P5 ;PREVIOUS CHARACTER A <CR>
JRST GETSA2 ;NO
SOJL D,GETSA6 ;END OF STRING
SETZ P5, ;CLEAR FLAG
MOVEI P1,"M"-100 ;GET A <CR>
SKIPG CHITAB(P1) ;NEED PARITY BIT?
TRO P1,200 ;YES
IDPB P1,C ;PUT A <CR> IN OUTPUT STRING
MOVEI P1,"J"-100 ;GET A <LF> AND CONTINUE
GETSA2: ;HERE WHEN THE CHARACTER IS ACCEPTABLE
SKIPG CHITAB(P1) ;NEED PARITY BIT?
TRO P1,200 ;YES. APPLY IT THEN
SOJL D,GETSA6 ;COUNT CHARS
IDPB P1,C ;USE IT
CAIE P1,.CHLFD ;A LINE FEED?
JRST GETSA1 ;NO, LOOP
;END OF LINE. INSERT 4 FILLS
MOVEI P4,4 ;FILLS TO DO
MOVEI P2,TTFILL ;THE FILL CHARACTER
GETSA3: SOJL D,GETSA6 ;JUMP IF BUFFER FULL
IDPB P2,C ;INSERT A FILL
SOJG P4,GETSA3 ;DO ALL FILLS
JRST GETSA1 ;LOOP
;END OF STRING OR COUNT EXHAUSTED (COUNT CAN ONLY BE WRONG IF STRING
;IN USER SPACE CHANGED SINCE WE COUNTED IT.)
GETSA6: MOVEM P1,@TTMSBY ;SAVE LAST BYTE COPIED
RETSKP
ENDSV. ;[7.1076] For GETSAL's STKVAR
;LOCAL SUBROUTINE TO COPY STRING
; A/ DEST BYTE PTR
; B/ SOURCE BYTE PTR
; CALL GSALCP
;COPY UNTIL NULL
; RETURN +1: ALWAYS, NULL FOLLOWS END OF DEST STRING
GSALCP: HLRZ C,B ;CHECK SOURCE PTR
CAIN C,-1 ;NEEDS INIT?
HRLI B,(POINT 7,0) ;YES
DO.
ILDB T3,T2 ;GET BYTE
IDPB T3,T1 ;STORE IT
JUMPN T3,TOP. ;LOOP IF NOT NULL
OD.
CALLRET DBP ;DECREMENT DEST PTR OVER NULL AND RETURN
ENDBS.
;SIMULATE TTY INPUT
;ACCEPTS:
; T1/ CHARACTER
; T2/ INTERNAL LINE NUMBER
;CALL TTSTI
;RETURNS +1: ALWAYS
RESCD ;USED TO DUMP CTY BYTES INTO LINES
TTSTI:: ANDI 1,377 ;ISOLATE CHARACTER
NOSKD1
CAME 2,CTYINT ;CTY ALIAS?
CALL TTCHI ;NO. PUT CHAR INTO LINE BUFFER
JRST [ OKSKED ;FAILED, BUFFER FULL
RETBAD IOX33]
TTSTIX: OKSKD1
RETSKP
REPEAT 0,<
;OBNFT - SCHEDULER TEST FOR OUTPUT BUFFER NOT FULL
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
;CAUSES WAKEUP IF OUTPUT BUFFER IS NOT FULL
RESCD ;MUST BE RESIDENT
OBNFT: MOVE T2,T1 ;SETUP LINE
CALL STADYN ;GET ADDRESS OF DYNAMIC DATA
JRST 1(T4) ;SHOULDN'T HAPPEN. WAKE PROCESS
LOAD T3,TOMAX,(T2)
CAMG T3,TTOCT(T2) ;FULL?
JRST 0(T4) ;YES
JRST 1(T4) ;NO
>
SUBTTL STO JSYS
SWAPCD ;SWAPPABLE. CALLED AS A JSYS
.STO:: MCENT
STO11: UMOVE 1,1
CALL CHKTTY ;CHECK GIVEN DESIGNATOR
ITERR() ;NOT TTY
CALL LCKTTY ;GET ADDRESS OF DYNAMIC DATA AND PREVENT DEALLOCATION
JRST [ CALL ULKTTY
ITERR (TTYX01)] ;NOT ACTIVE. RETURN ERROR
CALL TTSTO
JRST STO11 ;BLOCKED. TRY AGAIN
UMOVEM 1,2 ;RETURN CHAR IN 2
CALL ULKTTY ;ALLOW DEALLOCATION OF DYNAMIC DATA
JRST MRETN
RESCD ;MAKE RESIDENT FOR EFFICIENCY
;TTSTO - REMOVE CHARACTER FROM OUTPUT BUFFER
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTSTO
;RETURNS +1: BLOCKED, TRY AGAIN
; +2 SUCCESS
; T1/ CHARACTER
TTSTO:: NOSKD1
CHNOFF DLSCHN ;CAN'T ALLOW SCANNER PI HERE
CALL GTOCHR ;GET CHAR FROM OUT BFR
JRST TTSTO1 ;EMPTY, BLOCK
TXNN A,TTOESC ;A MARKER?
IFSKP.
CAIE T1,TTOMRK ;SYNCH?
IFSKP. <
SETZRO TTFLO,(T2)> ;YES, CLEAR FLUSH FLAG
SETZ T1, ;RETURN A NUL
ENDIF.
CHNON DLSCHN
OKSKD1
RETSKP
;WAIT UNTIL BUFFER BECOMES NONEMPTY AND LINE INACTIVE
TTSTO1: CHNON DLSCHN
OKSKD1
SETONE TTBKO,(T2) ;NOTE WAITING FOR OUTPUT EVENT
DYNST T1 ;GET STATIC LINE NUMBER
CALL ULKTTY
HRLZS T1 ;LINE NUMBER TO LH
HRRI T1,TTOAV ;TEST FOR BUFFER NOT EMPTY AND LINE INACTIVE
MDISMS ;WAIT UNTIL SPECIFIED TEST IS SATISFIED
RET ;SAY WE BLOCKED. TRY AGAIN
;TTOAV - SCHEDULER TEST FOR OUTPUT AVAILABLE ON A LINE
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
;CAUSES WAKEUP IF OUTPUT BUFFER IS NOT EMPTY AND LINE IS INACTIVE
TTOAV:: HRRZ T2,T1 ;GET LINE NUMBER
CALL STADYN ;GET ADDRESS OF DYNAMIC DATA
JRST 1(T4) ;NOT ACTIVE. THIS SHOULDN'T HAPPEN
TMNN TTOTP,(T2) ;IS LINE ACTIVE?
SKIPN TTOCT(T2) ;NO. ARE THERE CHARACTERS?
JRST 0(T4) ;ACTIVE OR NO CHARACTERS AVAILABLE. DON'T WAKEUP
SETZRO TTBKO,(T2) ;NOTE WAIT COMPLETED
JRST 1(T4) ;INACTIVE AND CHARACTERS AVAILABLE. WAKEUP
SUBTTL STTYP/GTTYP JSYSes
;.STTYP - SET TERMINAL TYPE
;ACCEPTS:
; T1/ TERMINAL DESIGNATOR
; T2/ TERMINAL TYPE NUMBER
; STTYP
;RETURNS +1: ALWAYS
SWAPCD
.STTYP::MCENT
CALL CHKTTY
ITERR () ;ASSUME CHKTTY SET UP ERROR REASON
UMOVE 3,2 ;GET TERMINAL TYPE SPECIFIED
CAIL 3,0 ;REASONABLE NUMBER?
CAIL 3,NTTYPS
ITERR (STYPX1) ;TERMINAL TYPE NOT IN RANGE
CALL LCKTTY ;GET DYNAMIC DATA AND PREVENT DEALLOCATION
JRST [ CALL ULKTTY ;NOT ACTIVE. ALLOW DEALLOCATION
ITERR (TTYX01)]
STOR 3,TTTYP,(2) ;STORE NEW TERMINAL TYPE
LDB 1,TTMBIT ;GET MECH BITS
DPB 1,[POINT 3,TTFLGS(2),3] ;PUT WHERE NOTICED
LDB 1,TTTWID ;GET STANDARD WIDTH
STOR 1,TPWID,(2) ;SET IT FOR THIS LINE
LDB 1,TTTLEN ;STANDARD LENGTH
STOR 1,TPLEN,(2) ;SET IF FOR THIS LINE
TMNN TT1PRQ,(T3) ;PAGE MODE REQUIRED?
IFSKP.
SETONE TT%PGM,TTFLGS(T2) ;YES
ENDIF. ;OTHERWISE LEAVE IT AS IS
;LOAD T1,DSPTB,(T3) ;GET VIDEO ATTRIBUTES TABLE
;SKIPE T1 ;IS THIS A VIDEO TERMINAL?
;MOVEI T1,1 ;YES.
;STOR T1,TTNXO,(T2) ;SET PAGE STOP BIT APPROPRIATELY
TDCALL D,<<CH,CTHTYP>>
CALL ULKTTY ;ALLOW DEALLOCATION
JRST MRETN
;.GTTYP - GET TERMINAL TYPE
;ACCEPTS:
; T1/ TERMINAL DESIGNATOR
; GTTYP
;RETURNS +1: ALWAYS
; T2/ TERMINAL TYPE
; T3/ (NUMBER INPUT BUFFERS,,NUMBER OUTPUT BUFFERS)
.GTTYP::MCENT
CALL CHKTTR
JRST [ XCTU [SETZM 2] ;NOT TTY, RETURN 0
JRST MRETN]
CALL LCKTTY ;POINT TO DYNAMIC DATA AND PREVENT DEALLOCATION
JRST [ CALL ULKTTY ;NOT ACTIVE. ALLOW DEALLOCATION
ITERR (TTYX01)]
LOAD 1,TTTYP,(2) ;GET TERMINAL TYPE
UMOVEM 1,2
LOAD 1,TTNIN,(2) ;GET NUMBER OF INPUT BUFFERS
LOAD 3,TTNOU,(2) ;GET NUMBER OF OUTPUT BUFFERS
HRLI 3,0(1) ;COMBINE THEM FOR USER
UMOVEM 3,3
CALL ULKTTY ;ALLOW DEALLOCATION OF DYNAMIC DATA
JRST MRETN
;GETTYP - Get Terminal Type
;T2/ Line Number
; CALL GETTYP
; Returns +1: Failure, Line Not Active
; T1/ Error Code
; Returns +2: Success
; T1/ Terminal Type
FTCTS <
GETTYP::CALL LCKTTY ;Point to Dynamic Data and prevent deallocation
RETBAD (TTYX01,<CALL ULKTTY>) ;If failure, return error and unlock
LOAD T1,TTTYP,(T2) ;Get terminal type
CALL ULKTTY ;Allow deallocation of Dynamic Data
RETSKP ;Give successful return
> ;End of Conditional Assembly
SUBTTL STPAR JSYS
;.STPAR - SET TERMINAL PARAMETERS
;ACCEPTS:
; T1/ TERMINAL DESIGNATOR
; T2/ NEW JFN MODE WORD
; STPAR
;RETURNS +1: ALWAYS
.STPAR::MCENT
CALL CHKTTR ;IS THIS A TTY?
MRETNG ; NO, THEN THIS IS A NOOP
CALL CHKTTY ;CAN WE GET TO IT?
EMRETN () ; NO, ERROR OUT WITH REASON
CALL LCKTTY ;POINT TO DYNAMIC DATA AND PREVENT DEALLOCATION
JRST [ CALL ULKTTY ;NOT ACTIVE. ALLOW DEALLOCATION
ITERR (TTYX01)]
;STPAR...
NOINT ;I WILL NOT DIE
UMOVE 1,2 ;GET NEW JFN MODE WORD
TDCALL D,<<PT,STPAR5>,<TV,TVTPAR>,<CH,CTHSPR>>
PUSH P,1
XOR 1,TTFLGS(2)
ANDI 1,TT%ECM+TT%UOC+TT%LIC+TT%DUM+TT%PGM ;CHANGE THESE BITS
XORM 1,TTFLGS(2)
TXNE T1,TT%PGM ;DID PAGE MODE CHANGE?
IFNSK. <TDCALL D,<<FE,TTEXF>,<MC,MCEXF>,<LH,LTEXF>,<CH,CTHEXF>>> ;YES, FIX XOFF RECOG IN FE
PUSH P,1
TXNE 1,TT%PGM ;CHANGING PAGE MODE?
CALL TTXONF ;YES, BE SURE OUTPUT NOT STOPPED
SETZ 1,
STOR 1,TPGPS,(2) ;AND RESET PAGE POSITION
POP P,1
LDB 1,[POINT 7,0(P),10]
JUMPE T1,STPAR2 ;ALLOW ZERO LENGTH
CAIL 1,2 ;LEGAL PAGE SIZE?
CAIL 1,200
JRST STPAR0 ;ILLEGAL SIZE DOES NOT CHANGE SETTING
STPAR2: STOR T1,TPLEN,(2)
STPAR0: LDB 1,[POINT 7,0(P),17]
JUMPE T1,STPAR3 ;ALLOW ZERO WIDTH
CAIL 1,10 ;LEGAL WIDTH
CAIL 1,200
JRST STPAR1 ;ILLEGAL WIDTHS DON'T CHANGE THE SETTING
STPAR3: STOR T1,TPWID,(2)
STPAR1: LDB 1,[POINT 3,0(P),3]
DPB 1,[POINT 3,TTFLGS(2),3] ;LH BITS
POP P,1
CALL ULKTTY ;ALLOW DEALLOCATION OF DYNAMIC DATA
JRST MRETN
SUBTTL TLINK JSYS
;.TLINK - ESTABLISH/REMOVE LINKS BETWEEN TERMINALS
;ACCEPTS:
; T1/ (FLAGS,,OBJECT LINE NUMBER)
; T2/ REMOTE LINE NUMBER OR -1 FOR ALL
; TLINK
;RETURNS +1: FAILURE
; T1/ ERROR CODE
; +2: SUCCESS
;FLAGS:
; TL%CRO - B0 - CLEAR REMOTE TO OBJECT
; TL%COR - B1 - CLEAR OBJECT TO REMOTE
; TL%EOR - B2 - SET OBJECT TO REMOTE
; TL%ERO - B3 - SET REMOTE TO OBJECT
; TL%SAB - B4 - SET OR CLEAR ACCEPT LINKS ACCORDING TO B5
; TL%ABS - B5 - SET ACCEPT LINKS
; TL%STA - B6 - SET OR CLEAR ACCEPT ADVICE ACCORDING TO B7
; TL%AAD - B7 - SET ACCEPT ADVICE
;'OBJECT' IS USUALLY THE CALLER OF THE JSYS; 'REMOTE' IS THE OTHER LINE
.TLINK::MCENT
TRVAR <OBJNO,OBJADR,REMNO,TLSAV1,LNKWRN>
SETOM LNKWRN ;ASSUME LINK MESSAGE IS NEEDED
MOVEI T1,-.TTDES(T1) ;TURN OBJECT DESIGNATOR INTO LINE NUMBER
CAIE T1,-1-.TTDES ;SPECIFIED -1 FOR OWN TERMINAL?
IFSKP. ;YES
HRRZ T1,FORKN ;GET NUMBER OF FORK
LOAD T1,FRKTTY,(T1) ;GET FORK CONTROLLING TERMINAL
TRZ T1,.TTDES ;OBTAIN LINE NUMBER
ENDIF.
CAIN T1,-1-.TTDES ;IS THERE ONE FOR THE FORK?
SKIPL T1,CTRLTT ;NO, USE JOB CONTROLLING TERMINAL
CAIL T1,NLINES ;VALIDATE LINE NUMBER
RETERR(DESX1) ;ILLEGAL
MOVEM T1,OBJNO ;SAVE LINE NUMBER
ADDI T1,.TTDES ;CREATE DESIGNATOR AGAIN
CALL CHKDEV ;SEE IF TERMINAL IS AVAILABLE TO THIS JOB
SKIPA T1,CAPENB ;NO, MUST CHECK WHEEL
JRST TLKOBG ;YES, PROCEED
TXNN T1,SC%WHL!SC%OPR ;PRIVILEGED TO LINK RANDOM TERMINALS?
RETERR (WHELX1) ;NO, LOSE
SETZM LNKWRN ;NO MESSAGE IS TYPED LATER
TLKOBG: MOVE T2,OBJNO ;GET BACK LINE NUMBER
CALL LCKTTY ;POINT TO DYNAMIC DATA, PREVENT DEALLOCATION
JRST [ CALL ULKTTY ;NOT ACTIVE.
RETERR (TTYX01)]
MOVEM T2,OBJADR ;SAVE ADDRESS OF DYNAMIC DATA FOR OBJECT
UMOVE 1,1 ;GET BITS AND OBJECT DESIGNATOR
TLNN 1,(74B5) ;SECOND DESIGNATOR REQUIRED?
JRST TL1 ;NO
;USER IS SETTING OR CLEARING LINKS. GET SECOND ARGUMENT, WHICH IS A LINE
;NUMBER (OR -1 FOR ALL LINES IF CLEARING LINKS)
XCTU [HRRZ 2,2]
CAIN 2,-1 ;'ALL' ?
JRST TL1 ;YES, LEAVE AS IS
TRZE 2,.TTDES ;4XXXXX?
JRST TL2 ;YES
MOVE 1,2 ;ASSUME REGULAR JFN
CALL CHKTTY
JRST TLINK9
TL2: CAIL 2,NLINES ;LEGAL LINE?
JRST TL3 ;NO. TOO LARGE
CAIL 2,0 ;NEGATIVE IS ILLEGAL
CAMN T2,CTYINT ;ALIAS FOR CTY?
TL3: JRST [ MOVEI T1,DESX1 ;INVALID LINE. FAIL
JRST TLINK9]
;T2/ LINE NUMBER FOR REMOTE OR -1
TL1: MOVEM T2,TLSAV1 ;SAVE REMOTE LINE NUMBER IF ANY
MOVE FX,OBJNO ;GET BACK OBJECT NUMBER
UMOVE Q2,1 ;GET FUNCTION FLAGS
TXNE Q2,TL%CRO ;CLEAR REMOTE TO OBJECT?
CALL TLINK0 ;YES. GO DO IT
TXNE Q2,TL%COR
JRST [ CALL TLINK1 ;CLEAR OBJECT TO REMOTE
JRST TLINK9 ;FAILED. GO RETURN ERROR
JRST .+1]
TXNE Q2,TL%EOR
JRST [ CALL TLINK2 ;SET OBJECT TO REMOTE
JRST TLINK9 ;FAILED
JRST .+1]
TXNE Q2,TL%ERO
JRST [ CALL TLINK3 ;SET REMOTE TO OBJECT
JRST TLINK9
JRST .+1]
TXNE Q2,TL%SAB
CALL TLINK4 ;SET ACCEPT BIT TO C(B5)
TXNE Q2,TL%STA ;SET ADVICE BIT?
CALL TLINK5
MOVE T2,OBJADR ;T2/ ADDRESS OF OBJECT'S DATA
CALL ULKTTY ;ALLOW DEALLOCATION
SMRETN
;AN ERROR OCCURRED. UNLOCK DATA AND RETURN FAILURE
TLINK9: SKIPE T2,OBJADR ;T2/ ADDRESS OF OBJECT'S DATA
CALL ULKTTY ;ALLOW DEALLOCATION
RETERR ;RETURN ERROR CODE
;CLEAR REMOTE TO OBJECT
;ACCEPTS:
; TLSAV1/ REMOTE LINE NUMBER OR -1
; FX/ OBJECT LINE NUMBER
; CALL TLINK0
;RETURNS +1: ALWAYS
;DETERMINES WHETHER USER WANTS TO CLEAR ALL OR ONE. CALLS ROUTINE
;FOR EACH REMOTE LINE NUMBER
TLINK0: MOVE T2,TLSAV1 ;GET REMOTE LINE NUMBER
CAIE 2,-1 ;ALL REMOTES?
CALLRET TL0C ;NO, DO THE ONE SPECIFIED
;CLEAR LINKS FROM ALL REMOTES TO THIS OBJECT. LOOP THROUGH LINES
MOVEI 2,0 ;T2/ REMOTE LINE NUMBER
CALL TL0C ;CLEAR LINKS FROM REMOTE TO OBJECT
CAIGE 2,NLINES-1 ;AT END OF LINES?
AOJA 2,.-2 ;NO. KEEP GOING
RET ;YES. DONE
;TL0C - CLEAR ALL LINKS FROM SPECIFIED REMOTE TO OBJECT
;ACCEPTS:
; T2/ REMOTE LINE NUMBER
; FX/ OBJECT LINE NUMBER
;CALL TL0C
;RETURNS +1: ALWAYS
TL0C: SAVELN
CALL LCKTTY ;POINT TO DYNAMIC DATA FOR REMOTE
CALLRET ULKTTY ;NOT ACTIVE
TL0C1: CALL TLTST1 ;FIND LINK TO OBJECT IN REMOTE
JUMPL 1,TL0C2 ;DONE IF NO LINKS TO OBJ
MOVEI 1,777 ;FOUND ONE. CLEAR IT
DPB 1,Q1 ;CLEAR THE LINK JUST FOUND
JRST TL0C1 ;GO FIND ANOTHER
;DONE WITH THIS REMOTE LINE
TL0C2: CALLRET ULKTTY ;ALLOW DEALLOCATION FOR REMOTE
;TLINK1 - CLEAR OBJECT TO REMOTE
;ACCEPTS:
; FX/ OBJECT LINE NUMBER
; TLSAV1/ REMOTE LINE NUMBER OR -1
; CALL TLINK1
;RETURNS +1: FAILURE
; +2: SUCCESS
TLINK1: MOVE T2,TLSAV1 ;GET REMOTE LINE NUMBER
CAIE 2,-1 ;ALL?
CALLRET TL1C ;NO, CLEAR SPECIFIC
;CLEAR ALL LINKS FROM THIS OBJECT. LOOP THROUGH LINK WORD
MOVE Q1,[POINT 9,TTLINK(4),-1] ;POINT TO LINK WORD
TL12: MOVE 4,OBJADR ;GET ADDRESS OF OBJECT'S DATA
ILDB 2,Q1 ;GET A LINE NUMBER
CAIN 2,777 ;IS THIS SLOT FREE?
JRST TL14 ;YES. SKIP IT
PUSH P,Q1 ;NO. SAVE BYTE POINTER
CALL TL1C ;GO CLEAR ALL LINKS TO THIS REMOTE
RETBAD (,<POP P,Q1>) ;SOME SORT OF FAILURE
POP P,Q1 ;RESTORE BYTE POINTER
TL14: TLNE Q1,(7B2) ;AT END OF LINK WORD?
JRST TL12 ;NO. GO TO NEXT FIELD
RETSKP ;YES. DONE
;TL1C - CLEAR ALL LINKS FROM OBJECT TO THIS REMOTE
;ACCEPTS:
; T2/ REMOTE LINE NUMBER
; FX/ OBJECT LINE NUMBER
; CALL TL1C
;RETURNS +1: FAILURE
; +2: SUCCESS
TL1C: CALL TLTST2 ;FIND LINK TO REMOTE
JUMPL 1,RSKP ;NONE, DONE
;OBJECT POINTS TO REMOTE. DON'T ALLOW CLEARING IF REMOTE ALSO POINTS
;TO OBJECT
MOVE 1,CAPENB
TRNE 1,SC%WHL+SC%OPR ;PRIVILEGED?
JRST TL13 ;YES, SKIP CHECK
MOVEM T2,REMNO ;SAVE REMOTE LINE NUMBER
CALL LCKTTY ;POINT TO REMOTE DYNAMIC DATA
JRST [ CALL ULKTTY
JRST TL13]
PUSH P,Q1
CALL TLTST1 ;SEE IF REMOTE POINTS TO OBJECT
CALL ULKTTY ;UNLOCK REMOTE'S DATA
POP P,Q1 ;RESTORE POINTER TO REMOTE LINK WORD
JUMPGE 1,TL15 ;ERROR IF REMOTE POINTS TO OBJECT
TL13: MOVEI 1,777
DPB 1,Q1 ;CLEAR LINK JUST FOUND
MOVE T2,REMNO ;RESTORE REMOTE LINE NUMBER
JRST TL1C
TL15: RETBAD (TLNKX1)
;TLINK2 - SET OBJECT TO REMOTE
;ACCEPTS:
; FX/ OBJECT LINE NUMBER
; TLSAV1 / REMOTE LINE NUMBER OR -1
; CALL TLINK2
;RETURNS +1: FAILURE
; +2: SUCCESS
TLINK2: STKVAR <TLNKT>
MOVEI T2,5 ;MAX TRIES IF REMOTE IF REFUSING
MOVEM T2,TLNKT ;SAVE IT
TLNK2: MOVE T2,TLSAV1 ;GET REMOTE LINE NUMBER
CAIN 2,-1 ;SPECIFIED ALL?
RETBAD (DESX1) ;NON-SPECIFIC DESIGNATOR ILLEG HERE
CAMN 2,FX ;LINK TO SELF?
RETSKP ;YES, IGNORE
CALL TLTST2 ;LINK ALREADY EXISTS?
JUMPG 1,RSKP ;IGNORE IF YES
MOVEI T2,777 ;LOOK FOR AN EMPTY SLOT
CALL TLTST2 ; THAT WE COULD ACCEPT WITH
JUMPL T1,[RETBAD (TLNKX3)] ;ALL LINKS ARE IN USE ALREADY
MOVE T2,TLSAV1 ;GET BACK THE REMOTE LINE NUMBER
;IF REMOTE IS NOT ACCEPTING LINKS, RING THE BELL AND WAIT TO SEE IF
;USER DECIDES TO ACCEPT
CALL LCKTTY ;POINT TO REMOTE DYNAMIC DATA
JRST [ CALL ULKTTY
RETBAD (TTYX01)]
;REPEAT SEQUENCE OF CHECKING ACCEPT BIT, RINGING BELL, AND WAITING
;UNTIL EITHER REMOTE ALLOWS LINKS OR WE TIME OUT
TL21: MOVE 3,TLSAV1 ;GET THE REMOTE LINE NUMBER
JN TTNTM,(3),TL26 ;IF NO TERMINAL MSGS - GENERATE ERROR
MOVEI 3,TT%ALK ;ACCEPT BIT
MOVE 4,CAPENB
TRNN 4,SC%WHL+SC%OPR ;PRIVILEGED? OR
TDNE 3,TTFLGS(2) ;REMOTE ACCEPTING?
JRST TL22 ;YES
SOSGE TLNKT ;TRY AGAIN?
JRST TL24 ;NO. CAN'T DO THE LINK
CALL ULKTTY ;FREE REMOTE LOCK
SKIPE T2,OBJADR ;GET OBJECT ADDRESS
CALL ULKTTY ;FREE IT AS WELL
SETZM OBJADR ;SAY NO LOCK HERE
MOVEI 4,^D10 ;A RING IS 10 BELLS
TL23: NOSKED ;OWN MACHINE FOR A WHILE
HRROI T1,[BYTE (7) .CHBEL] ;GET A BELL
PUSH P,4 ;SAVE COUNTER
MOVE T2,TLSAV1 ;GET REMOTE LINE NUMBER
CALL TTEMES ;OUTPUT A BELL
HRROI T1,[BYTE (7) .CHBEL] ;GET A BELL AGAIN
MOVE T2,FX ;GET OBJECT LINE NUMBER
CALL TTEMES ;OUTPUT A BELL HERE TOO
POP P,4 ;RESTORE COUNTER
OKSKED ;RELEASE MACHINE NOW
SOJG 4,TL23
;WAIT A WHILE
MOVEI 1,^D3000 ;WAIT FOR 3 SECONDS, THE BELL WILL BE
DISMS ;RINGING FOR THE FIRST SECOND OF WAIT
MOVE T2,FX ;GET OBJECT LINE NUMBER
CALL LCKTTY ;LOCK IT UP
JRST [ CALL ULKTTY ;FREE IT
RETBAD (TTYX01)] ;AND GIVE ERROR
MOVEM T2,OBJADR ;SAY IT IS NOW LOCKED
JRST TLNK2 ;AND TRY AGAIN
ENDSV. ;END STKVAR
;REMOTE IS ACCEPTING LINKS
TL22: CALL ULKTTY
MOVEI 2,777
CALL TLTST2 ;FIND FREE FIELD IN OBJECT
JUMPL 1,[RETBAD (TLNKX3)] ;LINKS FULL
MOVE T2,TLSAV1 ;GET REMOTE LINE NUMBER
DPB 2,Q1 ;DEPOSIT REMOTE NUMBER IN FIELD
MOVE T2,OBJADR ;GET OBJECT DYNAMIC DATA
CALL ULKTTY ;FREE IT
SETZM OBJADR ;NO LOCK HELD
SKIPN LNKWRN ;LINKING FROM MY OWN JOB?
JRST TL25 ;NO, SKIP MESSAGE
MOVE T1,OBJNO ;GET TERMINAL NUMBER
ADDI T1,.TTDES ;TURN INTO DESIGNATOR
HRROI 2,[ASCIZ /
LINK FROM /]
SETZ 3,
SOUT ;MSG ON OBJECT ALSO SEEN ON REMOTE
ERJMP TL25
MOVE 2,JOBNO
HRRZ 2,JOBDIR(2) ;USER ON THIS JOB
HRLI 2,USRLH ;TURN IT INTO A USER NUMBER
DIRST ;TYPE HIS NAME
JFCL
HRROI 2,[ASCIZ /, TTY /]
SOUT
ERJMP TL25
MOVE 2,FX ;OBJECT LINE NUMBER
MOVEI 3,10
NOUT
ERJMP TL25
HRROI T2,[ASCIZ /
/]
SETZ T3,
SOUT
ERJMP TL25
TL25: MOVE T2,FX ;GET OBJECT LINE NUMBER
CALL LCKTTY ;LOCK IT AGAIN
JRST [ CALL ULKTTY ;OOPS. WENT AWAY
RETBAD (TTYX01)] ;GIVE ERROR
MOVEM T2,OBJADR ;SAY HOLD LOCK
RETSKP
TL24: CALL ULKTTY
RETBAD (TLNKX2)
TL26: CALL ULKTTY
RETBAD (TTMSX2)
;TLINK3 - SET REMOTE TO OBJECT
;ACCEPTS:
; TLSAV1/ REMOTE LINE NUMBER OR -1
; FX/ OBJECT LINE NUMBER
; CALL TLINK3
;RETURNS +1: FAILURE
; +2: SUCCESS
TLINK3: MOVE T2,TLSAV1 ;GET REMOTE LINE NUMBER
CAIN 2,-1
RETBAD (DESX1) ;MULTIPLE DESIGNATOR ILLEGAL
CAMN 2,FX ;LINK TO SELF?
RETSKP ;YES, IGNORE
CALL LCKTTY
JRST [ CALL ULKTTY
RETBAD (TTYX01)]
CALL TLTST1 ;SEE IF REMOTE POINTS TO OBJECT
JUMPG 1,TL33 ;IF SO, ALREADY DONE
MOVE 1,CAPENB
TRNE 1,SC%WHL+SC%OPR ;PRIVILEGED?
JRST TL31 ;YES, SKIP CHECK
EXCH T2,TLSAV1 ;GET REMOTE LINE NUMBER
CALL TLTST2 ;SEE IF OBJECT POINTS TO REMOTE
JUMPL 1,[MOVEI T1,TLNKX1 ;IF NOT, ERROR
EXCH T2,TLSAV1 ;GET BACK REMOTE ADDRESS
CALLRET ULKTTY]
EXCH T2,TLSAV1 ;GET BACK ADDRESS OF REMOTE
TL31: PUSH P,FX
MOVEI FX,777
CALL TLTST1 ;FIND FREE FIELD IN REMOTE
POP P,FX
JUMPL 1,[MOVEI T1,TLNKX3
CALLRET ULKTTY]
DPB FX,Q1 ;DEPOSIT OBJ NUMBER IN FIELD
TL33: CALL ULKTTY
RETSKP
;TLINK4 - SET ACCEPT BIT
TLINK4: MOVE T2,OBJADR
MOVEI 1,TT%ALK ;IT IS BIT 26 IN TTFLGS
TLNE Q2,(1B5) ;SET IT?
IORM 1,TTFLGS(T2) ;YES
TLNN Q2,(1B5) ;CLEAR IT?
ANDCAM 1,TTFLGS(T2) ;YES
RET
;SET OR CLEAR ACCEPT ADVICE
TLINK5: MOVE T2,OBJADR
MOVEI 1,TT%AAD ;YES, GET BIT
TLNE Q2,(1B7)
IORM 1,TTFLGS(T2) ;YES
TLNN Q2,(1B7) ;CLEAR IT?
ANDCAM 1,TTFLGS(T2) ;YES
RET
;CHECK FOR EXISTENCE OF REMOTE TO OBJECT
;ACCEPTS:
; T2/ ADDRESS OF REMOTE
; FX/ OBJECT LINE NUMBER
; CALL TLTST1
;RETURNS +1: ALWAYS,
; T1/ NUMBER OF OBJECT
; OR
; -1 IF REMOTE DOESN'T POINT TO OBJECT
; Q1/ BYTE POINTER TO LINK WORD FOR REMOTE
;CLOBBERS NO AC'S
TLTST1: MOVE Q1,[POINT 9,TTLINK(2),-1]
TLT1: ILDB 1,Q1 ;SCAN REMOTE
CAMN 1,FX ;FOUND OBJECT?
RET ;YES
TLNE Q1,(7B2) ;NO, SCANNED ALL FIELDS?
JRST TLT1 ;NO
SETO 1, ;YES, RETURN NEGATIVE VALUE
RET
;TLTST2 - CHECK FOR EXISTENCE OF OBJECT TO REMOTE
;ACCEPTS:
; T2/ REMOTE LINE NUMBER
; CALL TLTST2
;RETURNS +1: ALWAYS,
; T1/ NUMBER OF REMOTE
; OR
; -1 IF OBJECT DOESN'T POINT TO REMOTE
; Q1/ BYTE POINTER TO LINK WORD FOR OBJECT WHERE REMOTE WAS FOUND
;CLOBBERS NO AC'S
TLTST2: MOVE 3,OBJADR ;GET ADDRESS OF OBJECT
MOVE Q1,[POINT 9,TTLINK(3),-1] ;POINT TO LINK WORD IN OBJECT
TLT2: ILDB 1,Q1 ;SCAN OBJECT
CAMN 1,2 ;FOUND REMOTE?
RET ;YES
TLNE Q1,(7B2) ;NO, SCANNED ALL FIELDS?
JRST TLT2 ;NO
SETO 1, ;YES, RETURN NEG VALUE
RET
ENDTV. ;END TRVAR
SUBTTL Miscellaneous Global Routines
;NOTE: THE FOLLOWING ROUTINES WERE WRITTEN TO SOLVE A PARTICULAR PROBLEM;
;I. E., MODULES OTHER THAN TTYSRV WERE REFERENCING TELETYPE DATA. EACH
;OF THESE ROUTINES REPLACES CODE IN ONE OR MORE MODULES SO THAT THOSE
;MODULES NO LONGER REFERENCE TELETYPE DATA. ADDITIONS OF CALLS TO THESE
;ROUTINES MUST TAKE INTO ACCOUNT THE RULES ABOUT LOCKING/UNLOCKING DYNAMIC
;DATA.
;GTCJOB - GET JOB NUMBER FOR WHICH THIS IS THE CONTROLLING TERMINAL
;ACCEPTS: T2/ INTERNAL LINE NUMBER
; CALL GTCJOB
;RETURNS +1: LINE IS NOT ACTIVE
; +2: LINE IS ACTIVE,
; T3/ JOB NUMBER OF OWNING JOB
RESCD
GTCJOB::SAVELN
CALL STADYN ;POINT TO DYNAMIC DATA
RETBAD (TTYX01) ;LINE NOT FULLY ACTIVE
LOAD T3,TCJOB,(T2) ;GET OWNING JOB
RETSKP
;STCJOB - SET CONTROLLING JOB
;ACCEPTS:
; T1/ JOB NUMBER
; T2/ LINE NUMBER
; CALL STCJOB
;RETURNS +1: ALWAYS
SWAPCD
STCJOB::CALL LCKTTY
CALLRET ULKTTY
STOR T1,TCJOB,(T2)
CALLRET ULKTTY
;GTTOPF - GET TOP FORK OF A SCTTY GROUP
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL GTTOPF
;RETURNS +1: LINE NOT ACTIVE
; +2: LINE IS ACTIVE,
; T3/ FORK NUMBER OF TOP FORK (OR -1)
RESCD
GTTOPF::SAVELN
CALL STADYN ;POINT TO DYNAMIC DATA
RETBAD (TTYX01) ;LINE NOT FULLY ACTIVE
LOAD T3,TTPFK,(T2) ;GET TOP FORK
RETSKP
;STTOPF - SET TOP FORK OF A SCTTY GROUP
;ACCEPTS:
; T1/ FORK NUMBER OR -1 TO STORE IN TTPFK
; T2/ INTERNAL LINE NUMBER
; CALL STTOPF
;RETURNS +1: ALWAYS
STTOPF::SAVELN
CALL LCKTTY ;POINT TO DYNAMIC DATA
CALLRET ULKTTY ;NOT AN ACTIVE LINE
STOR T1,TTPFK,(T2) ;STORE NEW FORK DATA
STTOPX: CALLRET ULKTTY
SWAPCD
;GTWFRK - GET NUMBER OF FORK IN INPUT WAIT ON THIS TERMINAL
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL GTWFRK
;RETURNS +1: ALWAYS,
; T1/ NUMBER OF FORK OR -1 IF NONE
RESCD
GTWFRK::SAVELN
CALL STADYN
JRST GTWFR1
LOAD T1,TWFRK,(T2)
RET
GTWFR1: MOVEI T1,-1
RET
;TTCLFK - CLEAR WAITING FORK ON TERMINAL
;ACCEPTS:
; T2/ LINE NUMBER
; CALL TTCLFK
;RETURNS +1: ALWAYS
SWAPCD
TTCLFK::NOSKED ;PREVENT RESCHEDULING
CALL STADYN ;GET TTY'S DATA BASE
JRST TTCLF1 ;NOT ACTIVE. IGNORE IT
SETONE TWFRK,(T2) ;INDICATE NO WAITING FORK
TTCLF1: OKSKED ;ALL DONE
RET
;PTYTTY - CONVERT PTY NUMBER TO INTERNAL LINE NUMBER (TTY NUMBER)
;ACCEPTS:
; T2/ PTY NUMBER
; CALL PTYTTY
;RETURNS +1: ALWAYS
; T2/ INTERNAL LINE NUMBER
;CLOBBERS NO ACS
SWAPCD
PTYTTY::ADD T2,TT1LIN+TT.PTY ;ADD NUMBER OF FIRST PTY LINE TO GET LINE NO.
RET
;TTYPTY - CONVERT INTERNAL LINE NUMBER TO PTY NUMBER
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
; CALL TTYPTY
;RETURNS +1:ALWAYS,
; T1/ PTY NUMBER
;CLOBBERS NO ACS
RESCD
TTYPTY::SUB T1,TT1LIN+TT.PTY ;SUBTRACT FIRST PTY LINE TO GET PTY NUMBER
RET
;CHKPTY - SEE IF THIS LINE NUMBER IS A PTY
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
; CALL CHKPTY
;RETURNS +1: NOT A PTY
; +2: A PTY
; T1/ PTY NUMBER
CHKPTY::ACVAR <W1> ;GET AN AC TO WORK WITH
LOAD W1,TTSTY,(T1) ;GET LINE TYPE FOR THIS LINE
CAIE W1,TT.PTY ;IS IT A PTY?
RETBAD ;NO. FAILURE
CALL TTYPTY ;CONVERT TO PTY NUMBER
RETSKP ;RETURN SUCCESS
SWAPCD
ENDAV. ;END ACVAR
;CKPHYT - SEE IF THIS IS A PHYSICAL TERMINAL
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL CKPHYT
;RETURNS +1: A PTY
; +2: A PHYSICAL TERMINAL
;PRESERVES AC'S
RESCD
CKPHYT::TDCALL S,<<PT,RSKP>>
RETSKP ;NOT A PTY
RET ;A PTY
;CKPHYD - SAME AS ABOVE BUT FOR DYNAMIC PTR
; T2/ DYNAMIC PTR
CKPHYD: TDCALL D,<<PT,RSKP>>
RETSKP ;NOT A PTY
RET ;A PTY
;CLRINT - CLEAR INTERRUPT WORD FOR A GIVEN LINE
;ACCEPTS:
; T1/ INTERRUPT BIT
; T2/ LINE NUMBER
; CALL CLRINT
;RETURNS +1: ALWAYS
CLRINT::CALL LCKTTY ;POINT TO DYNAMIC DATA, PREVENT DEALLOCATION
CALLRET ULKTTY ;NOT FULLY ACTIVE. IGNORE
ANDCAM T1,TTPSI(T2) ;CLEAR INTERRUPT BIT
CLRIN1: CALLRET ULKTTY ;ALLOW DEALLOCATION
;TTSINT - SET UP INTERRUPT WORD FOR TERMINAL
;ACCEPTS:
; T1/ DESIRED CONTENTS OF TTPSI
; T2/ INTERNAL LINE NUMBER
; T3/ DESIRED CONTENTS OF TTDPSI
;RETURNS +1: ALWAYS
SWAPCD
TTSINT::SAVELN
CALL LCKTTY ;GET ADDRESS OF DYNAMIC DATA
CALLRET ULKTTY ;NOT FULLY ACTIVE
EXCH T1,TTPSI(T2) ;STORE INTERRUPT WORD, GET OLD ONE
EXCH T3,TTDPSI(T2) ;DITTO DEFERRED INTERRUPT WORD
TDCALL D,<<CH,CTHOBS>> ;[7.1024]IF CTERM, SEND THE INFO TO THE SERVER
CALLRET ULKTTY ;ALLOW DEALLOCATION
;ROUTINE USED BY ATACH JSYS TO SEE IF AN ATTEMPTED ATACH IS LEGAL
;
;ACCEPTS: T2/ TTY LINE NUMBER
;RETURNS: +1 ILLEGAL ATACH
; +2 OK TO ATACH
REPEAT 0,<
ATACTT::NOSKED ;INSURE INTEGRITY WHILE LOOKING AT TTY DATA
CALL STADYN ;HAVE A FULL DATA BLOCK?
IFNSK. ;NO
SKIPE T2 ;BECOMING ACTIVE?
JRST ATACTL ;YES - LOSE
JRST ATACTW ;NO, SHORT BLOCK - WIN
ENDIF.
TMNN TTPRM,(T2) ;HAVE FULL BLOCK, IS IT PERMANENT?
JRST ATACTL ;NO - LOSE
TMNE TTBAC,(T2) ;YES, IS IT BECOMING ACTIVE?
JRST ATACTL ;YES - LOSE
LOAD T3,TCJOB,(T2) ;NO, GET ASSOCIATED JOB
HRRES T3 ;MAKE A FULL WORD
SKIPL T3 ;IS THERE CURRENTLY A JOB?
JRST ATACTL ;YES - LOSE
ATACTW: OKSKED ;DONE WITH DATA BASE
RETSKP ;ATACH IS LEGAL
ATACTL: OKSKED ;DONE WITH DATA BASE
RET ;ATACH IS NOT LEGAL
> ;End of REPEAT 0
;CKBJFN - SEE IF BKJFN HAS ALREADY BEEN DONE ON THIS LINE
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL CKBJFN
;RETURNS +1: BKJFN HAS NOT BEEN DONE
; +2: BKJFN HAS ALREADY BEEN DONE
SWAPCD
CKBJFN::SAVELN
CALL STADYN ;GET ADDRESS OF DYNAMIC DATA
RETBAD ;NOT ACTIVE. BKJFN HAS NOT BEEN DONE
JN TTRFG,(T2),RSKP ;IF FLAG SET, BKJFN HAS BEEN DONE
RETBAD ;OTHERWISE, HASN'T BEEN DONE
;TTCKAD - SEE IF LINE IS ACCEPTING ADVICE
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTCKAD
;RETURNS +1: NOT ACCEPTING ADVICE
; +2: ACCEPTING ADVICE
TTCKAD::JE TT%AAD,TTFLGS(T2),R ;IF NOT, NONSKIP
RETSKP ;INDICATE ACCEPTING
;GTBPTY - GETAB ROUTINE TO GET PTY INFO
;RETURNS +1: ALWAYS
; T1/ (NUMBER OF PTYS,,FIRST PTY NUMBER)
GTBPTY::HRLI T1,NTTPTY ;NUMBER OF PTYS
HRR T1,TT1LIN+TT.PTY ;GET FIRST LINE NUMBER
RET
;GTBTTF - GETAB ROUTINE FOR TTFORK TABLE
;ACCEPTS:
; T2/ LINE NUMBER
;RETURNS +1: ALWAYS,
; T1/ (CONTROLLING JOB,,WAITING FORK)
; OR
; -1 IF LINE IS INACTIVE
; OR
; (-2,,-1) IF JOB IS BEING CREATED ON THE LINE
GTBTTF::CALL LCKTTY ;POINT TO DYNAMIC DATA, PREVENT DEALLOCATION
JRST GTBTT1 ;NOT ACTIVE.
JN TTPRM,(T2),[ JE TTBAC,(T2),.+1 ;IF PERMANENT, AND BECOMING
HRLOI T1,-2 ; ACTIVE, RETURN (-2,,-1)
CALLRET ULKTTY] ;GO CLEAN UP
;LINE IS EITHER FULLY ACTIVE AND NOT PERMANENT, OR PERMANENT AND NOT BECOMING ACTIVE.
;GET OWNING JOB AND WAITING FORK AND RETURN THEM
LOAD T1,TWFRK,(T2) ;GET WAITING FORK
LOAD T3,TCJOB,(T2) ;GET OWNING JOB
HRL T1,T3 ;COMBINE THEM
CALLRET ULKTTY
;LINE IS NOT FULLY ACTIVE. RETURN -1 IF INACTIVE, (-2,,-1) IF
;BECOMING ACTIVE
GTBTT1: SETOM T1 ;NOT ACTIVE. INDICATE NO OWNER OR FORK
SKIPGE T2 ;IS JOB BEING CREATED ON THIS LINE?
HRLI T1,-2 ;YES. INDICATE THAT
CALLRET ULKTTY ;ALLOW DEALLOCATION
;STPRM - SET THE PERMANENT BIT IN DYNAMIC DATA
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL STPRM
;RETURNS +1: ALWAYS
STPRM:: SETONE TTPRM,(T2)
RET
;CLRPRM - CLEAR THE PERMANENT BIT
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL CLRPRM
;RETURNS +1: ALWAYS
CLRPRM::SETZRO TTPRM,(T2)
RET
;CKINP - CHECK FOR INPUT BUFFER EMPTY
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL CKINP
;RETURNS +1: INPUT BUFFER IS EMPTY
; +2: INPUT BUFFER IS NOT EMPTY
RESCD
CKINP:: CALL LCKTTY ;POINT TO DYNAMIC DATA, PREVENT DEALLOCATION
CALLRET ULKTTY ;NOT ACTIVE. INDICATE NO CHARACTERS
SKIPE TTICT(T2) ;ACTIVE. ANY INPUT CHARACTERS?
JRST [ CALL ULKTTY ;YES. ALLOW DEALLOCATION
RETSKP] ;INDICATE NON-ZERO COUNT
CALLRET ULKTTY ;ALLOW DEALLOCATION INDICATE ZERO COUNT
;TTCKSP - ROUTINE CALLED FROM SYSINE TO SEE IF THIS LINE NEEDS A SET SPEED
;DONE BEFORE JOB INITIALIZATION
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTCKSP
;RETURNS +1: ALWAYS
;THIS IS RELEVANT FOR REMOTE FRONT END LINES ONLY. WHEN A JOB LOGS OFF OF A REMOTE
;LINE AND THE NEXT CARRIER-ON INTERRUPT COMES IN ON THIS LINE,
;BIT TTFSP IN TTFWED IS SET, INDICATING THAT THE SPEED MUST BE RESET
;TO THE DEFAULT. THIS ROUTINE LOOKS FOR THAT BIT
;THE (INPUT,,OUTPUT) SPEEDS ARE IN TTSPWD FOR THIS LINE
SWAPCD
TTCKSP::JE <TTFEM,TTFSP>,(B),R ;IF NOT REMOTE, GO AWAY
;OR IF DON'T NEED SPEED SETTING
SETZRO TTFSP,(B) ;CLEAR SPEED SETTING REQUIRED
TMNN TTAUT,(B) ;NON-AUTO LINE?
SKIPG C,TTSPWD(B) ;HAVE A SPEED TO SET?
RET ;NO. GIVE IT UP
MOVEI A,.TTDES(B) ;A/ DEVICE DESIGNATOR FOR THIS LINE
MOVEI B,.MOSPD ;B/ THE FUNCTION
MTOPR ;GO SET THE SPEED
ERJMP .+1 ;IGNORE FAILURE (ACJ REFUSAL)
RET ;AND DONE
;INIT SPEED WORDS
TTSPIN::MOVSI B,-NLINES ;ONLY DO THE REAL LINES
SETOM TTSPWD(B) ;INITIALIZE THE LINE SPEEDS
AOBJN B,.-1 ;DO ALL LINES
ret ;all done
;TTHNGU - HANG UP DATASET
;ACCEPTS:
; T2/ LINE NUMBER
; CALL TTHNGU
;RETURNS +1: ALWAYS
;CALLED BY THE LGOUT JSYS IF THE JOB ON THIS LINE WAS NOT LOGGED IN.
SWAPCD
TTHNGU::CAMN 2,CTYLNO ;IS THIS THE CTY?
RET ;YES. DON'T HANG IT UP
REPEAT 0,<
PUSH P,T2 ;SAVE LINE NUMBER
CALL LCKTTY ;POINT TO DYNAMIC DATA, PREVENT DEALLOCATION
JRST TTHNG1 ;NOT ACTIVE. CAN'T HAVE OUTPUT
CALL TTDOBE ;WAIT TILL NO OUTPUT
JRST [ POP P,T2 ;GET BACK LINE
JRST TTHNGU] ;TRY AGAIN
TTHNG1: CALL ULKTTY ;ALLOW DEALLOCATION
POP P,T2 ;RESTORE LINE NUMBER
>;END REPEAT 0 - SOBE LOOP HAS BEEN DONE ALREAYD AT LOG2. TTDOBE CAUSES HANGS
TDCALL S,<<FE,TTHU2>,<MC,MCHNGU>,<TV,TVTDTS>,<CH,CTHNGU>,<LH,LTHNGU>>;
RET
;TTUHUP - Routine to "unhangup" a line (raise DTR for dialout modems)
; Called via MTOPR's .MTUHU function and when a JFN to terminal closed.
;
;Accepts:
; T2/ internal line number
;
;Returns +1: Always
TTUHUP::TDCALL S,<<FE,TTUHU>> ;[7435] (T2/) Only applies to front end lines
RET ;[7435] No-op on all other line types
;TTABRT - ROUTINE TO ABORT JOB STARTUP
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTABRT
;RETURNS +1: ALWAYS
;THIS ROUTINE IS CALLED BY JOBSRT WHEN IT CANNOT START A JOB
;BECAUSE OF SOME FULL CONDITION. IF THE LINE IS NOT A PERMANENT
;BLOCK, TTACTL SHOULD BE -1; THIS ROUTINE SETS IT TO 0. IF THE LINE
;IS A PERMANENT BLOCK, TT%BAC SHOULD BE SET; THIS ROUTINE CLEARS IT
;THIS ALLOWS TTEMES TO SEND THE 'FULL' TO THE LINE
RESCD
TTABRT::SAVELN
SKIPG T3,TTACTL(T2) ;IS LINE ACTIVE?
JRST [ SETZM TTACTL(T2) ;INDICATE NOT ACTIVE
RET]
SETZRO TTBAC,(T3) ;INDICATE NOT BECOMING ACTIVE
RET
SUBTTL Buffer Control
;ASSIGN AND SETUP TTY BUFFERS
; 3/ NUMBER OF BUFFERS TO GET
; RETURNS +1 TRANSPARENT, EXCEPT
; 3/ BYTE POINTER FOR INPUT AND OUTPUT POINTER WORDS
;THIS ROUTINE ASSUMES THAT IT IS PROTECTED FROM RESCHEDULING
RESCD
TTGTBF: PUSH P,1 ;TRANSPARENT TO ALL AC'S EXCEPT 3
PUSH P,4
PUSH P,3 ;SAVE COUNT
SETZ 1,
TTGTB1: CHNOFF DLSCHN
SOSGE TTFREC ;REDUCE FREE BUFFER COUNT
JRST TTGTB3 ;NONE LEFT
HRRZ 3,@TTFREB ;GET BUFFER FROM LIST
EXCH 3,TTFREB
CHNON DLSCHN
HRRZ 4,1
JUMPE 1,[MOVSI 1,0(3) ;FIRST BUFFER, REMEMBER ITS ADDRESS
JRST .+2]
HRRZM 3,0(4) ;CONC NEW BUFFER ONTO LIST
HRRI 1,0(3)
SOSLE 0(P) ;GOT REQUESTED NUMBER OF BUFFERS?
JRST TTGTB1 ;NO
HLRZ 3,1 ;ADDRESS OF FIRST BUFFER IN LIST
HRRZ 4,1 ;ADDRESS OF LAST BUFFER IN LIST
HRRZM 3,0(4) ;MAKE LAST POINT TO FIRST
ADD 3,[XWD 670000,1] ;CONSTRUCT 9-BIT BYTE POINTER TO FIRST BYTE
AOS -3(P) ;GIVE GOOD RETURN
TTGTB2: ADJSP P,-1 ;JUNK
POP P,4
POP P,1
RET
TTGTB3: BUG.(CHK,TTYNTB,TTYSRV,HARD,<Ran out of TTY buffers>,,<
Cause: TTGTBF was called to assign and set up TTY buffers but TTFREC
indicates that there are no buffers available.
>,,<DB%NND>) ;[7.1210]
AOS TTFREC ;GIVE BACK FRUITLESS SOS
CHNON DLSCHN ;RESTORE THE CHANNEL
HRRZ 4,1
JUMPE 1,TTGTB2 ;RETURN IF THERE WERE NONE
HLRZ 3,1 ;COMPLETE THE ONES WE GOT
HRRZM 3,0(4)
ADD 3,[670000,,1]
CALL TTRLBF ;THEN GIVE THEM BACK
JRST TTGTB2
;RELEASE LIST OF TTY BUFFERS
; 3/ BYTE POINTER ANYWHERE IN ANY BUFFER OF LIST
; RETURNS +1, CLOBBERS 3
; PRESERVES 1
;ASSUMES INTERRUPT PROTECTION AS ABOVE
TTRLBF: MOVEI 3,0(3) ;GET ADDRESS WITHOUT BYTE POINTER
JUMPE 3,R ;IN CASE NO BUFFERS
PUSH P,1
TDNN 3,WRPMSK ;NOW AT END OF BUFFER?
SUBI 3,TTSIZ ;YES
ANDCM 3,WRPMSK ;NORMALIZE POINTER TO FIRST WD OF BFR
ADDI 3,1 ;WHICH IS 1 AFTER THE 0 MOD TTSIZ
PUSH P,3 ;SAVE ADDRESS OF FIRST BUFFER
PUSH P,[0] ;DON'T CHNOFF IF ALREADY OFF
CONSO PI,1B<DLSCHN+^D28>
SETOM 0(P) ;INDICATE ALREADY OFF
TTRLB1: MOVEI 1,0(3)
HRRZ 3,0(3) ;NEXT BUFFER IN LIST
SKIPN 0(P) ;LEAVE CHANNEL ALONE
CHNOFF DLSCHN
EXCH 1,TTFREB ;PUT BUFFER ON FREE LIST
MOVEM 1,@TTFREB
AOS TTFREC
SKIPN 0(P) ;NO CHANNEL ON IF ALREADY OFF
CHNON DLSCHN
CAME 3,-1(P) ;CIRCLED AROUND TO FIRST BUFFER?
JRST TTRLB1 ;NO
ADJSP P,-2 ;RESTORE STACK
POP P,1
RET
;TTRLOB - RELEASE OUTPUT BUFFERS
;ACCEPTS:
; T1/ ADDRESS OF DYNAMIC DATA
; RETURNS +1: ALWAYS
;CLOBBERS 3 BUT PRESERVES 1
;LINE MAY BE FULLY ACTIVE OR ACTIVE WITH A MESSAGE BLOCK
;ASSUMES INTERRUPT PROTECTION AS ABOVE
TTRLOB: SKIPN 3,TTOOUT(2) ;OUTPUT BUFFERS TO RELEASE?
RET ;NO
SETZM TTOCT(T2) ;CLEAR COUNT OF BYTES
SETZM TTOOUT(2) ;YES. CLEAR OUTPUT POINTER
SETZM TTOIN(2) ;CLEAR INPUT POINTER
CALL CHKBKO ;PERHAPS FORK WAITING FOR OBUF EMPTY
CALLRET TTRLBF ;RELEASE THEM
SUBTTL Character Information Table (CHITAB)
RESCD
;CHARACTER INFORMATION TABLE
;B0 - PARITY BIT FOR CHARACTER
;B12-17 - CHARACTER WAKEUP CLASS
;B18-35 - DISPATCH ADDRESS (CONTROL CHARACTERS ONLY)
PCLASS: POINT Q2,CHITAB(1),17 ;POINTER TO CLASS BITS
AN==1 ;ALPHANUMERIC CLASS BIT
PC==2 ;PUNCTUATION CLASS BIT
CT==4 ;CONTROL (NON-FORMATTING) CLASS BIT
FC==10 ;FORMATTING CONTROL CLASS BIT
DEFINE CH(PAR,CLS,DSP)<
IFNB <DSP>,<<PAR>B0+<CLS>B17+DSP>
IFB <DSP>,<<PAR>B0+<CLS>B17+TCOUT>>
CHITAB::CH(0,CT) ; 0 NULL
CH(1,CT) ; 1 ^A
CH(1,CT) ; 2 ^B
CH(0,CT) ; 3 ^C
CH(1,CT) ; 4 ^D
CH(0,CT) ; 5 ^E
CH(0,CT) ; 6 ^F
CH(1,CT) ; 7 ^G
CH(1,FC,TTSM4) ; 10 ^H BACKSPACE
CH(0,PC,TTSM1) ; 11 ^I TAB
CH(0,FC,TTSM12) ; 12 ^J LF
CH(1,CT) ; 13 ^K
CH(0,FC,TTSM3) ; 14 ^L FORMFEED
CH(1,FC,TTSM5) ; 15 ^M CR
CH(1,CT) ; 16 ^N
CH(0,CT) ; 17 ^O
CH(1,CT) ; 20 ^P
CH(0,CT) ; 21 ^Q
CH(0,CT) ; 22 ^R
CH(1,CT) ; 23 ^S
CH(0,CT) ; 24 ^T
CH(1,CT) ; 25 ^U
CH(1,CT) ; 26 ^V
CH(0,CT) ; 27 ^W
CH(0,CT) ; 30 ^X
CH(1,CT) ; 31 ^Y
CH(1,CT) ; 32 ^Z
CH(0,17,TTSME) ; 33 ^[ ESC
CH(1,CT) ; 34 ^\
CH(0,CT) ; 35 ^]
CH(0,CT) ; 36 ^^
CH(1,CT) ; 37 ^_
CH(1,PC) ; 40 SPACE
CH(0,PC) ; 41 !
CH(0,PC) ; 42 "
CH(1,PC) ; 43 #
CH(0,PC) ; 44 $
CH(1,PC) ; 45 %
CH(1,PC) ; 46 &
CH(0,PC) ; 47 '
CH(0,PC) ; 50 (
CH(1,PC) ; 51 )
CH(1,PC) ; 52 *
CH(0,PC) ; 53 +
CH(1,PC) ; 54 ,
CH(0,PC) ; 55 -
CH(0,PC) ; 56 .
CH(1,PC) ; 57 /
CH(0,AN) ; 60 0
CH(1,AN) ; 61 1
CH(1,AN) ; 62 2
CH(0,AN) ; 63 3
CH(1,AN) ; 64 4
CH(0,AN) ; 65 5
CH(0,AN) ; 66 6
CH(1,AN) ; 67 7
CH(1,AN) ; 70 8
CH(0,AN) ; 71 9
CH(0,PC) ; 72 :
CH(1,PC) ; 73 ;
CH(0,PC) ; 74 <
CH(1,PC) ; 75 =
CH(1,PC) ; 76 >
CH(0,PC) ; 77 ?
CH(1,PC) ; 100 @
CH(0,AN) ; 101 A
CH(0,AN) ; 102 B
CH(1,AN) ; 103 C
CH(0,AN) ; 104 D
CH(1,AN) ; 105 E
CH(1,AN) ; 106 F
CH(0,AN) ; 107 G
CH(0,AN) ; 110 H
CH(1,AN) ; 111 I
CH(1,AN) ; 112 J
CH(0,AN) ; 113 K
CH(1,AN) ; 114 L
CH(0,AN) ; 115 M
CH(0,AN) ; 116 N
CH(1,AN) ; 117 O
CH(0,AN) ; 120 P
CH(1,AN) ; 121 Q
CH(1,AN) ; 122 R
CH(0,AN) ; 123 S
CH(1,AN) ; 124 T
CH(0,AN) ; 125 U
CH(0,AN) ; 126 V
CH(1,AN) ; 127 W
CH(1,AN) ; 130 X
CH(0,AN) ; 131 Y
CH(0,AN) ; 132 Z
CH(1,PC) ; 133 [
CH(0,PC) ; 134 \
CH(1,PC) ; 135 ]
CH(1,PC) ; 136 ^
CH(0,PC) ; 137 _
CH(0,PC) ; 140 `
CH(1,AN) ; 141 a
CH(1,AN) ; 142 b
CH(0,AN) ; 143 c
CH(1,AN) ; 144 d
CH(0,AN) ; 145 e
CH(0,AN) ; 146 f
CH(1,AN) ; 147 g
CH(1,AN) ; 150 h
CH(0,AN) ; 151 i
CH(0,AN) ; 152 j
CH(1,AN) ; 153 k
CH(0,AN) ; 154 l
CH(1,AN) ; 155 m
CH(1,AN) ; 156 n
CH(0,AN) ; 157 o
CH(1,AN) ; 160 p
CH(0,AN) ; 161 q
CH(0,AN) ; 162 r
CH(1,AN) ; 163 s
CH(0,AN) ; 164 t
CH(1,AN) ; 165 u
CH(1,AN) ; 166 v
CH(0,AN) ; 167 w
CH(0,AN) ; 170 x
CH(1,AN) ; 171 y
CH(1,AN) ; 172 z
CH(0,PC) ; 173 {
CH(1,PC) ; 174 |
CH(0,PC) ; 175 }
CH(0,PC) ; 176 ~
CH(1,17) ; 177 RUBOUT
SUBTTL TCO (First Level Output)
;OUTPUT CHARACTER TO TERMINAL
; TCO - FIRST LEVEL, TRANSLATE ACCORDING TO PROGRAM DESIRES
; TOCY- SECOND LEVEL, DO LINKS AND FORMAT FOR PARTICULAR DEVICE
; TCOUT-THIRD LEVEL, DO BUFFERING ETC.
;TCO - FIRST LEVEL OUTPUT
;ACCEPTS:
; T1/ CHARACTER (UP TO 9 BITS)
; T2/ ADDRESS OF DYNAMIC DATA
;RETURNS +1: ALWAYS
;CALLED BY BOUT CODE FOR A SINGLE CHARACTER
TCO:: LOAD T3,TT%DAM,TTFLGS(T2) ;GET TERMINAL DATA MODE
JUMPE T3,TCOB1 ;GO DO BINARY MODE
TDCALL D,<<CH,CTHASC>>,<RET> ;CTERM - SET MODE TO ASCII
PUSH P,1 ;NO. SAVE THE CHARACTER
ANDI 1,177 ;T1/ CHARACTER IN 7 BITS
CAIE T3,.TTATE ;TRANSLATE ECHO ONLY?
JRST TCOE1 ;NO. SOME OUTPUT TRANSLATION REQUIRED
CAIE T1,.CHESC ;AN ESC?
JRST TC1B ;NO
CALL TCOUT ;YES, NO TRANSLATE
JRST TC1C
;TCOE - ECHO OUTPUT
;ACCEPTS:
; T1/ CHARACTER
; T2/ ADDRESS OF DYNAMIC DATA
;RETURNS +1: ALWAYS
;THIS IS A SPECIAL ENTRY POINT USED BY TTCH7 (IN SCHEDULER CONTEXT)
;FOR IMMEDIATE ECHOING AND BY TCI FOR DEFERRED ECHOING.
;IF TCOUT IS UNABLE TO OUTPUT THE CHARACTER AND IS BEING CALLED
;FROM THE SCHEDULER, IT WILL SET TCOERR TO -1.
;THE SCHEDULER MUST CLEAR THIS WORD BEFORE CALLING AND CHECK IT UPON RETURN
;IF IN PROCESS CONTEXT AND UNABLE TO OUTPUT, IT WAITS UNTIL IT CAN DO
;THE OUTPUT
;NOTE: APPARENTLY THIS CODE IS NEVER CALLED IF TERMINAL DATA MODE IS BINARY
TCOE: TMNE TTNXO,(T2) ;DOING PAGE STOP?
JRST [ SETZRO TPGPS,(T2) ;YES. CLEAR LINE POSITION WITHIN PAGE
JRST .+1] ; TO PREVENT XOFF
PUSH P,1 ;SAVE THE CHARACTER
ANDI 1,177 ;T1/ CHARACTER IN 7 BITS
CAIN 1,.CHDEL ;RUBOUT?
JRST TC1C ;YES, DON'T ECHO
LOAD T3,TT%DAM,TTFLGS(T2) ;GET TERMINAL DATA MODE
CAIE T3,.TTASC ;TRANSLATE OUTPUT AND ECHO?
CAIN T3,.TTATE ;NO. TRANSLATE ECHO ONLY?
JRST TCOE1 ;YES. ECHO TRANSLATION REQUIRED
JRST TC1B ;NO ECHO TRANSLATION
;CONTROL CHARACTER TRANSLATION IS REQUIRED (OUTPUT OR ECHOING).
;IF THIS IS A CONTROL CHARACTER, DO THE TRANSLATION. OTHERWISE,
;CALL LEVEL 2
TCOE1: CAIL 1,40 ;CONTROL GROUP?
JRST TC1B ;NO. GO CALL LEVEL 2 CODE
;..
;TCO..
;TRANSLATE CONTROL CHARS ACCORDING TO CC OUTPUT CONTROL MODES IN FCMOD1/FCMOD2
; 00 - SEND NOTHING
; 01 - INDICATE, E.G. ^A
; 1X - DO FUNCTION (SECOND LEVEL HANDLES SIMULATION IF NECESSARY)
; 10 - SEND ACTUAL CODE
; 11 - SIMULATE FORMAT ACTION
;..
MOVE 4,FCMOD2(2)
MOVE 3,FCMOD1(2) ;GET MODE BITS
ROTC 3,0(1)
ROTC 3,0(1)
CAIN 1,.CHESC ;ESC SPECIAL CASE?
JRST [ TLNN 3,(3B1) ;YES, FLUSH CASE?
JRST TC1C ;YES
TLNN 3,(1B1)
JRST TC1B ;10 CASE, OUTPUT REAL CHAR
TLNN 3,(1B0)
JRST TC1D ;01 CASE, INDICATE WITH ^[
MOVEI 1,"$" ;11 CASE, 'SIMULATE' WITH $
JRST TC1B]
;DETERMINE ACTION ACCORDING TO CONTROL CHARACTER OUTPUT CONTROL BITS
TLNE 3,(1B0) ;DO?
JRST TC1B ;YES. CALL LEVEL 2 TO SEND CODE
; OR SIMULATE FORMAT ACTION
TLNN 3,(1B1) ;FLUSH?
JRST TC1C ;YES. DON'T SEND ANYTHING
;INDICATE CONTROL CHARACTER BY ^
TC1D: ADDI 1,100 ;CONVERT TO PRINTING EQUIV.
PUSH P,1
MOVEI 1,TTCIND ;GET ^
SKIPE IMECHF ;ECHOING?
AOS LINKF ;YES. FORCE IT OUT
CALL TCOY ;PRINT INDICATOR
POP P,1 ;GET BACK THE CHARACTER
CALL TCOY ;OUTPUT THE CHARACTER
SKIPE IMECHF ;DOING ECHO?
SOS LINKF ;YES.
JRST TC1C ;GO RETURN
;CALL LEVEL 2 TO OUTPUT THE CHARACTER. IF NECESSARY, IT WILL
;DO CONTROL CHARACTER SIMULATION
TC1B: CALL TCOY ;CALL LEVEL 2
TC1C: POP P,1 ;RETURN THE CHARACTER
RET
;TCOB - ENTRY FOR BINARY OUTPUT. NO TRANSLATION
;ACCEPTS:
; T1/ CHARACTER (UP TO 9 BITS)
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TCOB
;RETURNS +1: ALWAYS
TCOB::
TCOB1: TDCALL D,<<CH,CTHBIN>>,<RET> ;CTERM - SET MODE TO BINARY
ANDI T1,377 ;7 BITS OF CHARACTER + PARITY
CALLRET TCOU1 ;GO OUTPUT THE CHARACTER WITHOUT ADDING PARITY
SUBTTL TCOY (Second Level Output)
;SECOND LEVEL - HANDLE DEVICE IDEOSYNCRACIES AND CHAR ACCOUNTING
;ACCEPTS:
; T1/CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
;IMECHF IS -1 IF THIS CHARACTER IS BEING OUTPUT FOR IMMEDIATE ECHOING
;WHEN TAKEN OUT OF TTBBUF BY TTCH7
;CALLED FROM TCO (FIRST LEVEL OUTPUT). BY NOW, IF THIS IS A CONTROL
;CHARACTER, THE CONTROL CHARACTER OUTPUT CONTROL SPECIFIED EITHER
; 10 - SEND ACTUAL CODE
; OR
; 11 - SIMULATE FORMAT ACTION
;WE CAN ALSO GET HERE WHEN TT%DAM HAS .TTATO SET AND WE ARE DOING ECHO
;OR TT%DAM HAS .TTATE AND WE ARE DOING OUTPUT
TCOY: SAVEQ
CAIN 1,.CHDEL
JRST [ CALL TCOUT ;RUBOUT, SEND DIRECTLY
JRST TCOY3]
SKIPE IMECHF ;IMMED ECHO CHAR?
JRST [ MOVE 3,TTFLGS(2) ;YES, CHECK DUPLEX BITS
TXNN T3,TT%ECO ;IS ECHOING OFF?
JRST TCOY3 ;YES - THEN DON'T ECHO
SKIPN LINKF ;LINKED CHAR? OR
TRCN 3,3B33 ;FULL?
JRST .+1 ;YES
CALL TTCOHA ;ACCOUNT SPACING FOR CHAR
CAIGE 1,40 ;IS CONTROL CHAR AND MODE 2?
TRNN 3,3B33
JRST [ MOVE T3,TTLINK(T2) ;NO. GET LINK WORD
CAME T3,[-1] ;ANY LINKS?
CALL TTLNK3 ;YES. DO THEM
JRST TCOY3] ;AND DONE
JRST TTCO1] ;YES, ECHO CONTROL FN
;EITHER NOT IMMEDIATE ECHOING OR IMMEDIATE ON A FULL-DUPLEX TERMINAL
;IF CONTROL CHARACTER, GO HANDLE SPECIALLY
CAIGE 1,40
JRST TTCO1 ;CONTROL GROUP
;NOT A CONTROL CHARACTER. RAISE IF NECESSARY
MOVE 3,TTFLGS(2)
TXNE 3,TT%LCA ;TERMINAL HAS LOWER CASE?
JRST TTCO6 ;YES, NO TRANSLATION NEEDED
CAIL 1,"A" ;UPPER CASE LETTER?
CAILE 1,"Z"
JRST [ CAIL 1,"A"+40 ;NO, LOWER CASE LETTER?
CAILE 1,"Z"+40
JRST TTCO6 ;NO
SUBI A,40 ;YES, CONVERT TO UPPER CASE
JRST TTCO6]
;CHARACTER IS UPPER CASE. IF FLAGGING IS REQUIRED, CALL THIRD LEVEL
;ROUTINE TO PRINT A '^' BEFORE PRINTING THE CHARACTER
TXNN 3,TT%UOC ;INDICATE?
JRST TTCO6 ;NO
PUSH P,1 ;YES, SAVE CHAR
MOVEI 1,TTLIND ;OUTPUT INDICATOR
CALL TCOP
POP P,1
TTCO6: CALL TCOP ;OUTPUT CHAR AND ACCOUNT SPACE
TCOY3: RET
;TCOP - SECOND LEVEL SUBROUTINE - OUTPUT SINGLE SPACING CHARACTER
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA FOR THIS LINE
; CALL TCOP
TCOP: AOS T3,TTLPOS(T2) ;GET CURRENT POSITION ON LINE
;INCREMENT COUNT
HRRZS T3
TDCALL D,<<CH,RTN>>,<RETSKP> ;CTERM TERMINAL ?
JRST TCOUT ;YES. FOLDING DONE IN SERVER.
LOAD 4,TPWID,(T2) ;GET RIGHT MARGIN
JUMPE 4,TCOUT ;0 MEANS NEVER FOLD
CAIL 4,0(3) ;CHECK FOR OVERFLOW
CALLRET TCOUT ;NO OVERFLOW, OUTPUT CHAR
;REACHED END OF LINE. HANDLE WRAPAROUND AND GO BACK TO OUTPUT THE CHARACTER
PUSH P,1 ;LINE OVERFLOW, DO CR AND CONTINUATION
MOVEI 1,15 ;T1/ CARRIAGE RETURN
CALL TTSM5 ;DO CR
MOVEI 1,12 ;T1/ LINE FEED
CALL TTSM2 ;DO LF
SETZRO TLNPS,(T2) ;RESET LINE POSITION TO 0
REPEAT 0,< ;** FOLD INDICATION DISABLED
MOVEI 1,2 ;COUNT 2 *'S
HRRM 1,TTLPOS(2)
MOVEI 1,52
CALL TCOUT
CALL TCOUT
>
POP P,1
JRST TCOP ;GO OUTPUT THE CHARACTER
;TTCOHA - ACCOUNT SPACING PERFORMED BY HALF-DUPLEX TERMINAL
;TERMINAL HAS PRINTED THE CHARACTER. THIS MERELY ACCOUNTS FOR THE
;RESULTING POSITION ON THE TERMINAL
;ACCEPTS:
; T1/ CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
TTCOHA: CAIL 1,40 ;SPACING CHAR?
JRST [ INCR TLNPS,(T2) ;YES. INCREMENT POSITION ON LINE
RET]
;;;; CAIE T1,.CHLFD ;[7141] LF?
CAIN 1,15 ;CR?
JRST [ SETZRO TLNPS,(T2) ;YES. RESET TO LEFT MARGIN
RET]
CAIN 1,.CHLFD ;LF?
CALLRET INCLIN ;COUNT LINES
CAIN 1,.CHFFD ;FF?
JRST [ SETZRO TPGPS,(T2) ;YES. RESET TO TOP OF PAGE
RET]
CAIE 1,.CHBSP ;BACKSPACE?
RET ;NO
JE TLNPS,(T2),R ;YES. IF NOT AT LEFT MARGIN,
DECR TLNPS,(T2) ; DECREMENT CHARACTER POSITION WITHIN PAGE
RET
SUBTTL TCOY For Control Characters
;HERE WHEN THE CHARACTER TO BE OUTPUT IS A CONTROL CHARACTER
;ACCEPTS:
; T1/CHARACTER IN 7 BITS
; T2/INTERNAL LINE NUMBER
;THIS IS PART OF THE SECOND LEVEL OUTPUT AND IS CALLED BY TCOY.
;CHITAB CONTAINS THE ROUTINE THAT WILL PROCESS THE CHARACTER
;IN SOME CASES, IT CONTAINS TCOUT, THE THIRD LEVEL ROUTINE.
;IN OTHER CASES, IT CONTAINS A SPECIAL ROUTINE, WHICH DOES SOME TRANSLATION
;AND THEN CALLS TCOUT
;FOR EACH CHARACTER, ACTION IS CONTROLLED BY TWO BITS IN FCMOD1 OR FCMOD2:
; 00 = IGNORE, DO NOT SEND
; 01 = SEND PRINTING INDICATION (I.E. &C)
; 10 = SEND ACTUAL CODE AND ACCOUNT LINE AND PAGE POSITION
; 11 = SIMULATE FORMAT ACTION AND ACCOUNT
;WHEN THIS CODE IS CALLED, LEVEL 1 OUTPUT HAS ALREADY HANDLED THE
;TRANSLATION OF CONTROL CHARACTER IF MODE 0 OR 1 IS IN EFFECT
TTCO1: MOVE 4,FCMOD2(2) ;SECOND CONTROL MODES WORD
MOVE 3,FCMOD1(2) ;FIRST CONTROL MODES WORD
ROTC 3,0(1) ;GET TWO BIT MODE FOR THIS CHAR
ROTC 3,0(1)
HRRZ 4,CHITAB(1) ;GET DISPATCH ADDRESS
CALL 0(4) ;DISPATCH TO FORMAT ROUTINE
JRST TCOY3
;TAB
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ CONTROL CHARACTER OUTPUT CONTROL BITS IN BITS 0-1
; CALL TTSM1
TTSM1: PUSH P,3 ;SAVE OUTPUT MODE
LOAD 3,TLNPS,(2) ;OLD POSITION
IDIVI T3,TABSIZ ;COMPUTE SPACES BEYOND CURRENT STOP
MOVEI FX,TABSIZ
SUB FX,T4 ;COMPUTE SPACES TO NEXT STOP
POP P,3 ;MODE WORD
MOVSI 4,(1B2) ;HAS-TAB BIT
TLNN 3,(1B1) ;SIMULATE REQUESTED?
TDNN 4,TTFLGS(2) ;OR NO MECH TAB ON DEVICE?
JRST TTSM13 ;YES, GO SIMULATE
MOVEI 1,.CHTAB ;SEND REAL TAB
CALL TCOUT
MOVE 4,FX ;PLUS RUBOUTS TO KILL TIME
IDIVI 4,4 ;ASSUME FOUR SPACES PER RUBOUT
LOAD 3,TTTYP,(2) ;GET TYPE OF TERMINAL
LDB 1,TTTBPD ;GET NUMBER PADS PER FOUR SPACES
IMULI 4,0(1)
JUMPLE 4,TTSM14
PUSH P,FX ;SAVE NEW POSITION
MOVEI FX,0(4) ;ITERATION
TTSM16: MOVEI 1,TTFILL
CALL TCOUT
SOJG FX,.-1
POP P,FX ;RESTORE LINE POSTION
TTSM14: OPSTR <ADD FX,>,TLNPS,(2) ;UPDATE POSITION
STOR FX,TLNPS,(2)
RET
TTSM13: MOVEI 1,40 ;SIMULATE WITH SPACES
CALL TCOP ;SEND ONE
SOJG FX,TTSM13 ;SEND ALL OF THEM
RET
;LINE FEED
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ CONTROL CHARACTER OUTPUT CONTROL BITS IN BITS 0-1
; CALL TTSM12
TTSM12: TXNN T3,<1B1> ;CODE 2?
JRST TTSM2 ;YES, DO LF ONLY
MOVEI T1,.CHCRT ;DO CR FIRST
OPSTR <SKIPE T3,>,TLNPS,(T2)
CALL TTSM5
MOVEI T1,.CHLFD ;THEN LF
;..
;LOCAL LINEFEED - DOES NOT INCLUDE CR
TTSM2: CALL INCLIN ;ACCOUNT FOR LINE
LOAD 3,TPLEN,(T2) ;GET PAGE LENGTH
JUMPE 3,TTSM2X ;NO CHECK IF LENGTH 0
LOAD 1,TPGPS,(2) ;GET CURRENT PAGE POSITION
CAML 1,3 ;PAGE FULL?
JRST [ SETZRO TPGPS,(2) ;YES. RESET TO TOP OF PAGE
CALL TTXOFF ;DO XOFF IF IN PAGE MODE
JRST .+1]
TTSM2X: MOVEI 1,.CHLFD ;GET LINE FEED
CALL TCOUT ;OUTPUT LINE FEED
LOAD 3,TTTYP,(2) ;GET TERMINAL TYPE
LDB Q1,TTLFPD ;LF PADDING
CALLRET TTSPAD ;DO PADDING
;ROUTINE TO KEEP LINE COUNTER AND MAX UPDATED.
INCLIN: SAVET ;PRESERVE TEMPS
INCR TPGPS,(T2) ;INCREMENT LINE POSITION ON PAGE
AOS A,TTLINE(B) ;INCREMENT LINE COUNTER
CAMLE A,TTLMAX(B) ;NEW MAXIMUM?
MOVEM A,TTLMAX(B) ;YES, REMEMBER IT
RET
;FORM FEED
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ CONTROL CHARACTER OUTPUT CONTROL BITS IN BITS 0-1
TTSM3: LOAD 4,TPGPS,(2) ;GET PRESENT PAGE POSITION
SETZRO TPGPS,(T2) ;RESET TO TOP OF PAGE
PUSH P,3
LOAD 3,TPLEN,(2) ;PAGE SIZE
JUMPE T3,[SETZM Q1 ;IF ZERO PAGE LENGTH, SAY AT THE END
JRST TTSM34]
IDIVI 4,0(3)
SUBM 3,Q1 ;Q1/ DIFFERENCE TO END OF PAGE
TTSM34: POP P,3
MOVSI 4,(1B1)
TDNE 4,TTFLGS(2) ;DEVICE HAS MECH FF?
TLNE 3,(1B1) ;AND SEND DIRECT REQUESTED?
JRST TTSM32 ;NO, SIMULATE FF
CALL TCOUT ;SEND REAL CHARACTER
LOAD 3,TTTYP,(2) ;GET TERMINAL TYPE
LDB Q1,TTFFPD ;FF PADDING
CALL TTSPAD ;DO PADDING
JRST TTSM3Y
;SIMULATE FORM FEED BY OUTPUTTING AS MANY LINE FEEDS AS ARE NEEDED
;TO GET TO THE TOP OF THE NEXT PAGE
TTSM32: PUSH P,TTLPOS(2) ;SAVE LINE AND PAGE POSITIONS
PUSH P,Q1 ;SAVE NUMBER OF LINES LEFT IN PAGE
TTSM33: CALL TTSM2 ;SIMULATE ONE FORM FEED
SETZRO TPGPS,(T2) ;PREVENT TTSM2 FROM DOING X-OFF
SOSLE 0(P) ;COUNT LF'S
JRST TTSM33 ;LOOP ON LF'S
POP P,Q1 ;FLUSH TEMP
POP P,TTLPOS(2) ;RESTORE LINE AND PAGE POSITIONS
TTSM3Y: LOAD 1,TPLEN,(2) ;CHECK PAGE LENGTH
JUMPE T1,R ;DO XOFF UNLESS PLENGTH IS 0
CALLRET TTXOFF ;DO XOFF
;ROUTINE TO INSERT PADDING
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ CONTROL CHARACTER OUTPUT CONTROL BITS IN BITS 0-1
; Q1/ NUMBER OF FILLS TO SEND
; CALL TTSPAD
; RETURN +1 ALWAYS
TTSPAD: MOVEI 1,TTFILL ;FILLER
JUMPLE Q1,R ;DONE IF COUNT EXHAUSTED
CALL TCOUT ;SEND ONE
SOJA Q1,TTSPAD ;COUND DOWN RUBOUTS
;BACKSPACE
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ CONTROL CHARACTER OUTPUT CONTROL BITS IN BITS 0-1
TTSM4: LOAD 4,TLNPS,(2) ;GET LINE POSITION
JUMPE 4,TTSM45 ;IF AT BEGINNING SKIP REST
MOVE 4,TTFLGS(2) ;GET CURRENT LINE STATE
TRNN 4,3B33 ;IN HALF DUPLEX?
JRST [ DECR TLNPS,(T2) ;NO. ACCOUNT FOR BACKSPACE
JRST .+1]
TTSM45: TLNN 3,200000 ;REAL OR SIMULATED
CALLRET TCOUT ;NO. OUTPUT DIRECTLY
MOVEI 1,15 ;SIMULATE WITH CR AND SPACES (UGH)
CALL TCOUT
LOAD 4,TLNPS,(2) ;GET CHARACTER POSITION WITHIN LINE
TTSM44: MOVEI 1,40 ;GET SPACE
JUMPE 4,R ;IF AT LEFT MARGIN, QUIT
PUSH P,4 ;SAVE COUNTER
CALL TCOUT ;OUTPUT A SPACE
POP P,4 ;RESTORE COUNTER
SOJA 4,TTSM44 ;DO ALL NECESSARY SPACES
;CARRIAGE RETURN
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ CONTROL CHARACTER OUTPUT CONTROL BITS IN BITS 0-1
TTSM5: MOVEI 1,.CHCRT ;T1/ CARRIAGE RETURN
CALL TCOUT ;OUTPUT THE CARRIAGE RETURN
LOAD 4,TLNPS,(2) ;GET CHARACTER POSITION WITHIN LINE
SETZRO TLNPS,(2) ;RESET LINE POSITION
LOAD 3,TTTYP,(2) ;GET TERMINAL TYPE
LDB Q1,TTCRPD ;CR PADDING
IMULI 4,0(Q1) ;COMPUTE POSN/72*PAD, I.E. PAD IS
ADDI 4,^D71 ;AMOUNT FOR 72 CHAR LINE, SO PRO-RATE
IDIVI 4,^D72 ;BASED ON FULLNESS OF LINE, ROUNDING
MOVEI Q1,0(4) ;PAD COUNT UP TO NEXT INTEGER
CALLRET TTSPAD ;DO PADDING
;ESC
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ CONTROL CHARACTER OUTPUT CONTROL BITS IN BITS 0-1
TTSME: TLNN 3,(3B1) ;00?
RET ;YES, NO SEND
TLNE 3,(1B1) ;01 OR 11?
JRST [ MOVEI 1,"$" ;YES, SEND $
CALLRET TCOP]
CALLRET TCOUT ;SEND ACTUAL CODE
;TTXOFF - STOP OUTPUT TO A TERMINAL, I.E. PAUSE ON END-OF-PAGE
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
;CALLED WHEN OUTPUT TO A TERMINAL CAUSES THE PAGE TO FILL UP. IF TERMINAL
;IS IN PAGE MODE, PUTS SPECIAL CHARACTER IN OUTPUT STREAM TO CAUSE 'XOFF' ACTION
;WHEN ENCOUNTERED AT INTERRUPT LEVEL
TTXOFF: MOVX 1,TT%PGM
TMNE TTNXO,(T2) ;DOING PAGE STOP?
TDNN 1,TTFLGS(2) ;IN PAGE MODE?
RET ;NO, DO NOTHING
MOVEI 1,"G"-100 ;OUTPUT BELL TO TELL USER THAT
CALL TCOUT ; HE MUST RESTART OUTPUT
MOVEI 1,TTOPFC ;PUT SPECIAL FUNCTION CODE IN OUTPUT
CALLRET TCOU3 ; STREAM TO STOP OUTPUT AT THAT POINT
SUBTTL TCOUT (Third Level Output)
;OUTPUT ONE CHARACTER TO SPECIFIED TTY LINE
;ACCEPTS:
; T1/ CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
;RETURNS +1: ALWAYS
;IF IN SCHEDULER AND UNABLE TO SEND CHARACTER, SETS TCOERR TO -1
;SPECIAL ENTRY POINT WHEN ENTERING FROM TTEMES
;ACCEPTS:
; T1/ CHARACTER
; T2/ ADDRESS OF DYNAMIC DATA (FULL-LENGTH OR TTEMES BLOCK)
;RETURNS +1: ALWAYS
;IF UNABLE TO SEND CHARACTER AND IN SCHEDULER, SETS TCOERR TO -1
SCDTCO: SKIPL CHITAB(T1) ;TEST PARITY BIT FOR THIS CHARACTER
JRST TCOU6 ;NO PARITY NEEDED. GO ON
CALL SPARTY ;SET PARITY BIT
JRST TCOU6 ;GO STORE IN OUTPUT BUFFER
;PUT MARKER IN OUTPUT STREAM - IGNORE TOFLG
TCOUM:: CALL CKPHYD ;PTY?
RET ;YES, DO NOTHING
JRST TCOUM1 ;ENTER OUTPUT SEQUENCE
;PHYSICAL LINE. APPLY PARITY
TCOUT: SKIPL CHITAB(1) ;TEST PARITY BIT FOR THIS CHAR
JRST TCOU1 ;NO PARITY NEEDED. GO ON
CALL SPARTY ;SET PARITY BIT AS NEEDED
;FULLY ACTIVE LINE. PROCESS LINES LINKED TO THIS ONE
TCOU1:: MOVE C,TTLINK(B) ;ANY LINKS?
CAME C,[-1]
CALL TTLNK3 ;YES. GO DO THEM
; ..
; ..
;SEE IF THERE IS ROOM IN THE OUTPUT BUFFER
TCOU3: JN TOFLG,(T2),R ;LOSE CHARACTER IF CTRL/O TYPED
TCOUM1: DYNST T3 ;GET INTERNAL LINE NUMBER
CAMN T3,CTYINT ;IS THIS AN ALIAS FOR THE CTY?
RET ;YES. IGNORE CHARATCER
TCOU6:: TDCALL D,<<CH,CTHOOE>>,<RETSKP> ;DEVICE DEPENDENT ROUTINE -
; IS THIS AN ECHO OF A CHARACTER THAT
; HAS ALREADY BEEN ECHOED BY A DEVICE THAT
; KNOWS ABOUT ECHOING ?
RET ;YES. ECHOING WAS DONE IN SERVER.
LOAD 3,TOMAX,(2) ;CAPACITY OF OUTPUT BUFFERS
SKIPE IMECHF ;IMMEDIATE ECHO CHARACTER?
ADDI 3,2 ;YES. EXTRA ROOM FOR THIS CHARACTER
CAMLE 3,TTOCT(2) ;FULL?
JRST TCOU5 ;NO
CALL TCOUBF ;YES, BLOCK IF POSSIBLE
RET ;CAN'T BLOCK, RETURN NOW
JRST TCOU3 ;TRY AGAIN
;ACTION WHEN BUFFER FULL
; T1/ CURRENT OUTPUT CHARACTER
; T2/ DYNAMIC PTR
; CALL TCOUBF
; RETURN +1: CAN'T BLOCK, RETURN ERROR
; +2: READY TO TRY AGAIN
TCOUBF: SAVEAC <T1,Q1>
SKIPN INSKED ;ARE WE IN THE SCHEDULER?
SKIPE NSKED ;NO. ARE WE NOSKED?
IFNSK.
SETOM TCOERR ;YES. INDICATE FAILURE FOR SCHEDULER
RET ;AND RETURN
ENDIF.
TDCALL D,<<PT,CHKPTA>,<CH,CTHFOU>> ;DO DEVICE-DEPENDENT STUFF
SETONE TTBKO,(T2) ;NOTE BLOCK FOR OUTPUT EVENT
DYNST Q1 ;GET LINE NUMBER
CALL ULKTTY ;(T2) UNLOCK THE TTY
SKIPE JOBNO ;JOB 0?
IFSKP.
CAME Q1,CTYLNO ;YES, IS LINE THE CTY?
ANSKP.
MOVE T1,TODCLK ;YES, TIME THE BLOCK
MOVE T2,FORKX
STOR T1,FKST2,(T2) ;SAVE TIME NOW
SETOM J0RLDF ;NOTE FE NOT RELOADED YET
MOVEI T1,J0TCOT ;USE SPECIAL SCHED TEST
ELSE.
MOVEI 1,TCOTST ;SETUP SCHEDULER TEST WORD
ENDIF.
HRL 1,Q1 ; LINE NO,,TEST ROUTINE ADR
MOVSI T2,FHV5 ;WAIT PRIORITY
HDISMS
MOVE T2,Q1 ;GET STATIC LINE NUMBER
CALL LCKTTY ;LOCK UP THE TTY
IFNSK.
CALL ULKTTY ;UNLOCK THE LINE I CASE IT GOT LOCKED
MOVE T2,Q1 ;GET BACK LINE NUMBER
CALL TCOU7 ;GET SPECIAL BLOCK
ENDIF.
RETSKP
;BUFFER IS NOT FULL. SEE IF THERE IS A BUFFER. IF NOT, GET AS MANY
;AS ARE NEEDED
TCOU5: TDCALL D,<<PT,CKPTOU>,<MC,CKMCOU>,<LH,LTTCOU>>,RETSKP ;SEE IF OUTPUT POSSIBLE
RET
NOSKD1
CHNOFF DLSCHN ;MUST PREVENT DEASSIGN OF BUFFERS
SKIPE 3,TTOIN(2) ;BUFFERS EXIST?
JRST TCOU4 ;YES.
;THIS LINE HAS NO OUTPUT BUFFERS. GET SOME IF POSSIBLE. IF NONE
;AVAILABLE, WAIT FOR THEM UNLESS IN SCHEDULER. IN THAT CASE, SET
;ERROR FLAG AND RETURN
CHNON DLSCHN ;NO. ALLOW DLS INTERRUPTS
LOAD 3,TTNOU,(2) ;GET NUMBER TO ASSIGN
CALL TTGTBF ;ASSIGN THEM
JRST [ OKSKD1 ;FAILED. ALLOW SCHEDULING
SKIPN INSKED ;ARE WE IN THE SCHEDULER?
SKIPE NSKED ;NO. ARE WE NOSKED?
JRST [ SETOM TCOERR ;YES. INDICATE ERROR FOR SCHEDULER
RET] ; AND RETURN
PUSH P,1 ;SAVE CHARACTER
LOAD 1,TTNOU,(2);NO, CAN WAIT FOR BUFFERS
MOVSI 1,0(1) ;NUMBER NEEDED
HRRI 1,TTBUFW
MDISMS
POP P,1 ;RESTORE CHARACTER
JRST TCOU5] ;BUFFERS ARE AVAILABLE. GO GET THEM
CHNOFF DLSCHN
MOVEM 3,TTOOUT(2)
MOVEM 3,TTOIN(2)
;BUFFERS ARE AVAILABLE. AC 3 CONTAINS BYTE POINTER FOR ADDING NEXT
;CHARACTER. STORE THE CHARACTER.
TCOU4: TDNN 3,WRPMSK ;END OF BUFFER?
JRST [ LDB 4,[POINT 6,3,5] ;LOOK AT P,S FIELD OF BYTE POINTER
CAIE 4,73 ;POINTING TO LAST BYTE?
JRST .+1 ;NO.
HRRZ T4,T3 ;YES. GET ADDRESS OF CURRENT WORD
HRR T3,1-TTSIZ(T4) ;POINT TO NEXT BUFFER IN CHAIN
MOVEM T3,TTOIN(T2) ;SAVE CHARACTER POINTER
JRST .+1]
IDPB T1,TTOIN(T2) ;GET CHARACTER
AOS 3,TTOCT(2) ;INCREMENT COUNT OF CHARACTERS IN BUFFER
CHNON DLSCHN ;SAFE TO TURN CHN ON AFTER AOS
AOS NTTYOT ;COUNT ALL OUTPUT
CALLRET STRTOU ;START OUTPUT TO LINE IF NEEDED
;SET PARITY BIT IF REQUIRED FOR THIS LINE TYPE
; T2/ DYNAMIC DATA PTR
; T1/ CHARACTER
;RETURN +1 ALWAYS, T1 MODIFIED
SPARTY: LOAD CX,TLTYP,(T2) ;GET LINE TYPE
XCT PARTBL(CX) ;SET OR CLEAR BIT
RET
;HERE WHEN DID TCOTST BLOCK AND AWOKE TO FIND LINE
;HAS BEEN DEASSIGNED
SWAPCD ;GET HERE ONLY IN PROCESS CONTEXT
TCOU7: STKVAR <LNNUMB>
MOVEM T2,LNNUMB ;SAVE LINE NUMBER
TCOU75: NOSKED ;OWN THE MACHINE
TCOU76: MOVE T2,LNNUMB ;GET LINE #
CALL LCKTTY ;CHECK IT NOW
SKIPA ;IF UNASSIGNED, GO ON
JRST [ OKSKED ;ALLOW SCHEDULING
RET] ;AND DONE
CALL ULKTTY ;UNLOCK IN CASE IT GOT LOCKED
JUMPG T2,TCOU77 ;IF BLOCK IS SHORT WAIT IT TO BE DEALLOCATED
MOVE T2,LNNUMB ;LINE # AGAIN
CALL ASGMSL ;GET A MESSAGE BLOCK
JRST TCOU77 ;FAILED
CALL STADY ;SUCCESS. GET DYNAMIC DATA ADDRESS
JRST TCOU77 ;SOMETHING VERY WRONG. TRY AGAIN
SETOM TTLINK(T2) ;NO LINKS
JRST TCOU76 ;AND PROCEED
TCOU77: MOVEI T1,^D1000 ;WAIT 1 SEC
CALL SETBKT ;COMPUTE WAIT
HRRI T1,BLOCKT ;THE TEST
RDISMS ;WAIT HERE
JRST TCOU75 ;TRY AGAIN
ENDSV. ;END STKVAR
RESCD ;BACK TO RESIDENT MONITOR
;TTLNK3 - SCAN LINK WORD, SENDING CHAR TO LINES SPECIFIED BY NON-777 BYTES
TTLNK3::SKIPE IMECHF ;ECHO CHARACTER?
JRST [ PUSH P,T2 ;SAVE DYNAMIC DATA ADDRESS
JRST TTLN33] ;AND PROCEED
DYNST T4 ;GET LINE NUMBER
PUSH P,T4 ;SAVE LINE NUMBER
CALL ULKTTY ;UNLOCK THE TTY
TTLN33: ;AOS LINKF ;BE SURE CHARS GO OUT
TTLNK2: SETZ 2,
LSHC 2,^D9 ;GET NEXT FIELD
CAIN 2,777
JRST TTLNK1 ;MEANS NOT IN USE
PUSH P,3
PUSH P,1 ;SAVE CHARACTER
CALL LCKTTY ;LOCK UP DESTINATION TTY
JRST TTLNK4 ;NOT ACTIVE. DON'T SEND TO IT
TRNN 1,200 ;THIS CHARACTER HAVE PARITY?
JRST TTLK11 ;NO. GO ON
CALL SPARTY ;SET PARITY BIT
TTLK11: CALL TCOU3 ;GO SEND EXACT CHARACTER
TTLNK4: CALL ULKTTY ;FREE UP THE TTY
POP P,1
POP P,3
TTLNK1: JUMPN 3,TTLNK2 ;DO MORE IF ANY
; SOS LINKF ;NO LONGER LINKING
SKIPE IMECHF ;DOING ECHOING?
JRST PB2 ;YES. CLEAN UP AND DONE
PUSH P,1 ;SAVE BYTE
MOVE T2,-1(P) ;GET BACK LINE NUMBER
CALL LCKTTY ;LOCK IT UP AGAIN
JUMPLE T2,[MOVE T2,-1(P) ;GET LINE # AGAIN
CALL TCOU7 ;GET A SPECIAL BLOCK
JRST .+1] ;AND PROCEED
POP P,T1 ;GET BYTE
ADJSP P,-1 ;CLEAN UP STACK
RET ;AND PROCEED
;TCOTST - CALLED FROM SCHEDULER TO TEST FOR RUNNABLE
;ACCEPTS:
; T1/ INTERNAL LINE NUMBER
; CALL TCOTST
; RETURN +1: DON'T WAKEUP
; +2: WAKEUP
;CAUSES WAKEUP IF OUTPUT BUFFER IS NOT TOO FULL TO ADD A CHARACTER TO IT
TCOTST::MOVEI 2,0(1) ;LINE NUMBER TO REGULAR AC
CALL STADYN ;POINT TO DYNAMIC DATA
RETSKP ;NOT ACTIVE. SHOULDN'T HAPPEN
LOAD 1,TOWRN,(2) ;REGULAR WAKEUP COUNT
TMNE FKINX,(FX) ;BUT IF INTERRUPT WAITING,
LOAD 1,TOMAX,(2) ;WAKEUP IF BUFFER IS NOT FULL
CAMG 1,TTOCT(2) ;AT WAKEUP LEVEL?
RET ;NO
SETZRO TTBKO,(T2) ;NOTE WAIT COMPLETED
RETSKP ;YES
;SPECIAL OUTPUT BLOCK WAIT - TIMES BLOCK
; T1/ LINE NUMBER
; FX/ FORKX
; CALL J0TCOT
; RETURN +1: REMAIN BLOCKED
; +2: UNBLOCK
J0TCOT: CALL TCOTST ;SEE IF NORMAL COMPLETION
IFSKP.
RETSKP ;YES, ALL OK.
ENDIF.
MOVE T1,TODCLK ;OUTPUT STILL BLOCKED, SEE HOW MUCH TIME
OPSTR <SUB T1,>,FKST2,(FX) ; HAS ELAPSED
CAIGE T1,^D30000 ;30 SECONDS?
RET ;LESS THAN 30 SECONDS - KEEP WAITING.
CAIL T1,^D90000 ;90 SECONDS OR MORE?
JRST J0TC90 ;YES
CAIL T1,^D60000 ;60 - 90 SECONDS?
JRST J0TC60 ;YES
DYNST T3 ;FIRST TIMEOUT - GET LINE NUMBER
IFQN. TTSHU,(T3) ;IS LINE SHUT OFF?
BLOCK.
SAVEAC <T2> ;SAVE DYN PTR
MOVE T2,T3 ;PASS LINE NUMBER
TDCALL S,<<FE,TTTOBL>> ;(T2) TURN LINE ON
ENDBK.
ENDIF.
IFQN. <TTSFG,TTRXF>,(T2) ;OUTPUT XOFF?
CALL TTXONF ;(T2) CLEAR IT AND RESTART OUTPUT
ENDIF.
RET ;OUTPUT MAY BE GOING NOW...
;LINE HAS BEEN STUCK FOR 60 SECONDS OR MORE, BUT LESS THAN 90.
J0TC60: AOSE J0RLDF ;HAS FE BEEN RELOADED?
RET ;YES, KEEP WAITING
CALL LODCFE ;REQUEST RELOAD OF CONSOLE FE
BUG. (CHK,CTYSTK,TTYSRV,HARD,<FE reload requested because CTY is stuck>,,<
Cause: A JOB 0 fork was trying to output to the console, but was unable
to. The job entered the J0TCOT scheduler test to wait for the CTY
to clear, so that output could begin again. However, the CTY has
remained hung for a while and a FE reload has been requested.
Action: Check the CTY to see if it is functioning or has been left at the
PAR prompt. If the problem persists, contact Field Service.
>,,<DB%NND>) ;[7.1210]
RET ;KEEP WAITING
;LINE HAS BEEN STUCK FOR 90 SECONDS OR MORE.
J0TC90: CALL TTCBF2 ;(T2) CLEAR OUTPUT BUFFER, ENSURES UNBLOCK.
RETSKP
;TTBUFW - CALLED FROM SCHEDULER TO WAIT FOR BUFFERS
;ACCEPTS:
; T1/ NUMBER OF BUFFERS NEEDED
;CAUSES WAKEUP IF THE NEEDED NUMBER OF BUFFERS ARE AVAILABLE
TTBUFW: CAMLE 1,TTFREC
JRST 0(4)
JRST 1(4)
SUBTTL TCI (Get Char From Input Buffer)
;ROUTINE TO GET CHARACTER FROM LINE INPUT BUFFER
;CONVERT FROM ASCII TO INTERNAL AND GENERATE ECHOS
;AS REQUESTED
;ACCEPTS IN T2/ LINE #
; CALL TCI
;RETURNS +1: NEEDED TO BLOCK, CALLER MUST VERIFY IF THE TTY BEING
; INPUT FROM IS STILL THE CORRECT ONE. IN
; PARTICULAR, WAS THE JOB DETACHED?
; +2: SUCCESSFUL, CHARACTER IN T1
;N.B. T2 MUST BE PRESERVED IN THIS ROUTINE
TCI::
TCI1: LOAD T3,TT%DAM,TTFLGS(T2) ;GET CURRENT DATA MODE
JUMPE T3,TCIB2 ;JUMP IF BINARY
LOAD T1,TYLCH,(T2) ;GET LAST CHARACTER TAKEN FROM INPUT BUFFER
TMNE TTRFG,(T2) ;REPEAT LAST CHARACTER (BKJFN)?
JRST [ SETZRO TTRFG,(T2) ;YES. CLEAR FLAG
TXO T1,TTXECO ;INDICATE ALREADY ECHOED
JRST TCI3]
LOAD T3,TYLMD,(T2) ; GET MODE OF LAST CHAR INPUT
CAIN T1,.CHCRT ;LAST CHAR WAS A CR?
CAIN T3,.TTBIN ; YES, LAST MODE NON-BINARY?
JRST [ CALL TCI0 ; NO TO EITHER - GET NEXT CHAR FROM BUFFER
RETBAD ;NEEDED TO BLOCK. TELL THE CALLER.
JRST TCI3] ; AND CONTINUE
MOVE T1,[.CHLFD+TTXECO] ;YES, RETURN LF WITH NO ECHO
;NEXT CHARACTER IS IN RIGHT 9 BITS OF T1. IF IT HAS BEEN ECHOED,
;BIT TTXECO IS SET
TCI3: CALL TCITTI ;TEST FOR TERMINAL INTERRUPT AND HANDLE IT
RETBAD ;IT WAS, RETURN FAILURE
;NOT AN INTERRUPT CHARACTER. RAISE AND/OR ECHO AS NEEDED AND RETURN
;IT TO THE CALLER IN 7 BITS.
MOVE T4,T1 ;T4/ CHARACTER AND ECHO BIT
ANDI 1,177 ;T1/ CHARACTER IN 7 BITS
MOVE 3,TTFLGS(2) ;T3/ TTFLGS FOR THIS LINE
CAIN T1,.CHCRT ;A CR?
JRST [ CALL TCIECO ;YES, ECHO CR-LF
MOVEI T1,.CHLFD
CALL TCIECO
MOVEI T1,.CHCRT ;RETURN CR THIS TIME
JRST TCIR]
CALL TTRAIS ;TRANSLATE, RAISE, ETC.
CALL TCIECO ;ECHO CHARACTER IF NECESSARY
JRST TCIR
;TCIB - ENTRY FOR BINARY INPUT
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TCIB
;RETURNS +1: NEEDED TO BLOCK
; +2: SUCCESS
; T1/ CHARACTER
TCIB::
TCIB2: TMNE TTRFG,(T2) ;REPEAT LAST CHARACTER?
JRST [ SETZRO TTRFG,(T2) ;YES. CLEAR FLAG
LOAD T1,TYLCH,(T2) ;GET LAST CHARACTER INPUT
JRST TCIB1]
MOVEI T3,.TTBIN ;USE BINARY TERINAL DATA MODE
CALL TCI0 ;GET A CHAR
RETBAD ;NEEDED TO BLOCK. RETURN TO CALLER.
CALL TCITTI ;CHECK FOR TERMINAL INTERRUPT
RETBAD ;IT WAS, RETURN FAILURE
TCIB1: ANDI T1,377 ;RETURN CHARACTER + PARITY
;ALL ECHOING, ETC., HAS BEEN DONE. STORE IN DYNAMIC DATA AND
;RETURN THE CHARACTER TO THE CALLER
TCIR: STOR T1,TYLCH,(T2) ;SAVE LAST CHAR
LOAD T3,TT%DAM,TTFLGS(T2) ;GET CURRENT DATA MODE
STOR T3,TYLMD,(T2) ;AND STORE AS DATA MODE FOR LAST CHAR INPUT
RETSKP ;SKIP TO INDICATE BUFFER WASN'T EMPTY
;TCIECO -DO DEFERRED ECHO IF NECESSARY
;ACCEPTS:
; T1/ CHARACTER IN 7 BITS
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ TTFLGS FOR THIS LINE
; T4/ CHARACTER IN 9 BITS
TCIECO: TXNE T3,TT%ECO ;ECHOS ON?
TRNE T4,TTXECO ;AND CHARACTER NEEDS ECHO?
RET ;NO, DO NOTHING
PUSH P,T3 ;SAVE 3 FOR CALLER
PUSH P,T4 ;SAVE 4 FOR CALLER
CALL CLOFLG ;CLEAR CTRL-O FLAG IF NECESSARY
CALL TCOE ;SEND IT
POP P,T4
POP P,T3
RET
;TTCLPS - ROUTINE TO CLEAR PAGE COUNTER ON ENABLED INTERRUPT CHARACTER
;IF LINE IS IN PAGE MODE
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTCLPS
;RETURNS +1: ALWAYS,
; ALL AC'S PRESERVED
TTCLPS: JE TTNXO,(T2),R ;IF NO PAGE STOP, DONE
SETZRO TPGPS,(B) ;YES. CLEAR PAGE POSITION
RET ;AND RETURN
;CLEAR CTRL-O FLAG
; T2/ DYNAMIC PTR
CLOFLG: JNOR <TOFLG,TTFLO>,(T2),R ;RETURN IF NEITHER FLAG SET
SAVEAC <T1>
MOVEI T1,TTOMRK ;YES, PUT MARKER IN STREAM
SKIPE CTRLOF ;BUT ONLY IF NEW MODE
CALL SKCON ;AND INTERRUPT NOT ENABLED
IFSKP. <
CALL TCOUM>
SETZRO TOFLG,(T2) ;CLEAR MAIN LEVEL FLAG
RET
;TCI..
;TEST FOR DEFERRED TERMINAL INTERRUPT CHARACTER. INITIATE
;INTERRUPT IF NECESSARY.
; T1/ CHARACTER
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TCITTI
; RETURN +1: INTERRUPT CHAR, INTERRUPT INITIATED
; RETURN +2: NON-INTERRUPT CHAR, T1 PRESERVED
TCITTI: SAVEAC <Q1>
MOVEM T1,Q1 ;SAVE CHAR
ANDI T1,177 ;EXTRACT ASCII
CALL GPSICD ;GET PSI CODE IF ANY
JUMPL T1,TCITT1 ;JUMP IF NONE
MOVE T3,BITS(T1)
TDNN T3,TTPSI(T2) ;THIS CODE ENABLED?
JRST TCITT1 ;NO
;THIS IS A DEFERRED INTERRUPT CHARACTER. INITIATE THE INTERRUPT
;AND WAIT UNTIL IT HAS TAKEN
CALL TTCLPS ;YES. CLEAR OUT PAGE MODE STUFF
MOVEM T2,Q1 ;SAVE ADDRESS OF DYNAMIC DATA
MOVE T3,T1 ;PASS CODE IN T3 FOR TTPSRQ
NOSKED
CALL ULKTTY ;ALLOW DEALLOCATION
DYNST ;T2/ INTERNA LINE NUMBER
CALL TTPSRQ ;INITIATE INTERRUPT. RETURNS FORK ID IN 2
OKSKED
AOS TTINTS ;COUNT INTERRUPTS
MOVEI T1,TCIPIT ;SETUP SCHED TEST FOR INTERRUPT PROCESSED
HRL T1,T2 ;GET FORK THAT GOT THE INTERRUPT
TMNE FKINX,(T2) ;INTERRUPT STILL PENDING?
MDISMS ;YES, WAIT A WHILE
MOVE T2,Q1 ;RESTORE ADDRESS OF DYNAMIC DATA
RET ;RETURN NOSKIP TO RELOCK DATA
;NOT AN INTERRUPT CHARACTER. GIVE SKIP RETURN
TCITT1: MOVE T1,Q1 ;RESTORE INPUT CHAR
RETSKP ;RETURN TO CONTINUE PROCESSING CHAR
;TCIPIT - SCHEDULER TEST FOR MDISMS. CAUSES WAKEUP IF THE
;PROCESS POINTED TO BY AC 1 HAS NO PENDING INTERRUPTS
;ACCEPTS:
; T1/ FORK HANDLE
TCIPIT: TMNE FKINX,(T1) ;SCHED TEST FOR INTERRUPT STILL PENDING
JRST 0(T4) ;STILL PENDING
JRST 1(T4) ;COMPLETED
;TCI..
;TCI0 - GET ONE CHARACTER FROM LINE INPUT BUFFER
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; T3/ TERMINAL DATA MODE IN BITS 34-35
;RETURNS +1: LINE BUFFER WAS EMPTY, HAD TO WAIT
; +2: LINE BUFFER WAS NOT EMPTY,
; T1/ CHARACTER IN 9 BITS
;CALLER MUST HAVE CALLED LCKTTY ON THE LINE. IF BLOCK ON INPUT
;WAIT OCCURS, THIS ROUTINE CALLS ULKTTY
TCI0: NOSKED
CALL GTTCI ;GET CHAR FROM INPUT BUFFER
JRST TCI01 ;EMPTY
OKSKED
CALL SNDXON ;SEND XON IF NEEDED
RETSKP ;SKIP TO INDICATE NO WAIT
;TAKE NEXT CHAR FROM TTY IN BFR
; T2/ TERMINAL DATA BLOCK
; RETURN +1: BUFFER EMPTY
; +2: T1/ CHAR
GTTCI:: SKIPG 1,TTICT(2) ;ANY CHARS IN BUFFER?
RET ;NO
SKIPN 3,TTIOUT(2) ;GET POINTER
BUG.(HLT,TTICN0,TTYSRV,SOFT,<GTTCI - No buffer pointer but count non-zero>,,<
Cause: At TCI0 (get a character from the line's input buffer) the pointer to
the dynamic data base for the line was 0. This could either be a
coding error or the resident table containing the pointers was
clobbered.
Action: Look at the dump. The stack should indicate which routine called
TCI0 without the pointer.
>)
HRRZ 4,3
TDNN 3,WRPMSK ;AT END OF CURRENT BUFFER?
JRST [ LDB 1,[POINT 6,3,5] ;GET BYTE POSITION AND SIZE
CAIN 1,73 ;POINTING TO LAST BYTE?
HRR 3,1-TTSIZ(4) ;YES. GET ADDRESS OF NEXT BUFFER
JRST .+1]
ILDB 1,3 ;GET NEXT CHARACTER
MOVEM 3,TTIOUT(2) ;SAVE UPDATED BYTE POINTER
SOSG TTICT(2) ;REDUCE COUNT, NOW EMPTY?
JRST [ SETZB 3,TTIOUT(2) ;YES, RELEASE BUFFERS
EXCH 3,TTIIN(2)
CALL TTRLBF
JRST .+1]
RETSKP
;ACTION IF BUFFER IS EMPTY. MAKE SURE NO OTHER FORK IS WAITING.
;THEN GO INTO INPUT WAIT
TCI01: OKSKED
TCI11: LOAD T1,TWFRK,(T2) ;GET FORK WAITING FOR THIS LINE
CAIE T1,-1 ;IS THERE ONE?
JRST TCIF1 ;YES. GO RESOLVE THE CONFLICT
;NO OTHER FORK IS WAITING. GO INTO INPUT WAIT ON THIS LINE
;NOTE: THE TEST ON TTLCK IS A BIG HACK TO KEEP FSIINI HAPPY.
;DON'T TRY TO MAKE USE OF IT FOR ANYTHING ELSE!!
;ALL CALLERS OF TCI SHOULD HAVE CALLED LCKTTY
TCIF2: STOR T3,TYLMD,(T2) ;SAVE DATA MODE THIS INPUT
PUSH P,3 ;SAVE DATA MODE
MOVE T3,FORKX ;GET INDEX OF THIS FORK
STOR T3,TWFRK,(T2) ;RECORD THIS FORK WAITING FOR TTY
SETZRO TTFWK,(T2) ;INDICATE NO FORCED WAKEUP
TDCALL D,<<PT,TCIPTY>,<TV,TVTIGA>,<CH,CTHTCI>>
SETZRO TTWFG,(T2) ;CLEAR WAIT RESTARTED FLAG
PUSH P,T2 ;SAVE ADDRESS OF DYNAMIC DATA
DYNST ;GET LINE NUMBER
HRL T1,T2 ;SAVE LINE NUMBER
POP P,T2 ;RESTORE ADDRESS OF DYNAMIC DATA
; TMNE TTLCK,(T2) ;DON'T UNLOCK IF IT'S NOT LOCKED
CALL ULKTTY ;ALLOW DEALLOCATION
HRRI 1,TCITST ;T1/(LINE NUMBER,,ROUTINE)
PUSH P,T2
MOVSI T2,FHV4 ;WAIT PRIORITY - BETTER THAN AVERAGE
HDISMS
POP P,T2
POP P,3 ;RESTORE CURRENT MODE
RET ;GIVE NON-SKIP RETURN TO SAY A BLOCK
; OCCURRED
;A FORK IS WAITING FOR INPUT ON THIS TERMINAL. IF IT IS THE CURRENT
;FORK, PROCEED AS USUAL. IF NOT, RESOLVE THE CONFLICT BY HALTING THE
;OTHER FORK IF IT IS INFERIOR TO THIS ONE OR WAITING FOR THE OTHER
;FORK IF IT IS SUPERIOR TO THIS ONE OR IN ANOTHER JOB
TCIF1: ANDI A,7777
CAMN A,FORKX ;IS IT THIS FORK?
JRST TCIF2 ;YES. GO TO IT THEN
CALL ULKTTY ;RELEASE TTY LOCK AND GO OKINT
CALLRET TTFRKT ;GO RESOLVE CONFLICT BY HALTING FORK
SUBTTL Miscellaneous Routines
;FORCE WAKEUP OF FORK NOW WAITING FOR SPECIFIED TTY LINE
; 2/ ADDRESS OF DYNAMIC DATA
TTFWAK::PUSH P,FX
LOAD FX,TWFRK,(2) ;GET INDEX OF FORK IN INPUT WAIT
CAIN FX,-1 ;IS A FORK WAITING?
JRST TTFW1 ;NO
ANDI FX,7777 ;YES, FLUSH FLAGS
SETONE TWFRK,(T2) ;INDICATE NO FORK WAITING
SETZRO TTFWK,(T2) ;DON'T FORCE WAKEUP ON THIS FORK
; UNTIL INPUT BUFFER FULL AGAIN
CALL TTUBLK ;UNBLOCK THE FORK
TTFW1: POP P,FX
RET
;UNBLOCK TTY INPUT FORK ONLY IF STILL WAITING FOR TTY INPUT
; FX/ FORK INDEX
; CALL TTUBLK
; RETURN +1: ALWAYS, FORK UNBLOCKED IF IN TCITST
TTUBLK: SAVELN
MOVE 1,FX ;SETUP ARG
CALLRET UNBLKF ;TELL SCHED TO UNBLOCK THE FORK
;SCHEDULER TEST ROUTINE FOR FORKS WAITING FOR TTY INPUT
;CALLED WITH JSP 4,
;AC 1 CONTAINS LINE NUMBER
;AC FX CONTAINS FORK NUMBER OF FORK BEING TESTED
TCITST::MOVE T2,T1 ;GET LINE NUMBER
CALL STADYN ;POINT TO DYNAMIC DATA
JRST 1(4) ;LINE ISN'T ACTIVE. WAKE UP THE PROCESS
LOAD T1,TWFRK,(T2) ;GET INDEX OF FORK IN INPUT WAIT
CAIN T1,-1 ;IF NONE, WAKEUP
JRST 1(T4)
JN <TTFWK,TTWFG>,(T2),1(T4) ;IF FORCED WAKEUP SET, WAKE THE PROCESS
;WAKEUP IF WE'VE BEEN HERE BEFORE
SKIPE TTICT(T2) ;WAKEUP IF BUFFER ISN'T EMPTY
TCITS1: JRST 1(T4) ;WAKE THE PROCESS
SETONE TTWFG,(T2) ;INDICATE WE'VE BEEN HERE WITHOUT WAKING
JRST 0(T4) ;DON'T WAKE NOW
;SPECIAL CODE FOR TTY SIMULATORS. THIS ROUTINE PERFORMS THE PROPER
;TESTS FOR THE SPECIAL SIMULATOR. TO USE IT, PUT ITS ADDRESS
;IN THE LINE TYPE VECTOR AT TCIF2+7 AND PATCH IN THE PROPER LINE
;NUMBERS BELOW
TTCTRA: MOVEI T1,"A"-100 ;OUTPUT CHAR IS CONTROL-A
DYNST (T3) ;GET STATIC DATA IS T3
CAIL T3,.-.
CAILE T3,.-. ;WITHIN RANGE?
RET ;NO. DON'T SEND ^A THEN
CALLRET TCOUT ;YES. SEND CHARACTER
;'RAISE' INPUT
;ACCEPTS:
; T1/ THE CHARACTER IN 7 BITS
; T3/ TTFLGS FOR THE LINE
TTRAIS: TXNE T3,TT%LIC ;IF NOT RAISING INPUT
CAIGE T1,"A"+40 ; OR NOT IN RANGE
RET ;RETURN UNCHANGED
CAIG T1,"Z"+40 ;IF LOWER CASE ALPHABETIC
TRZ T1,40 ; CONVERT TO UPPER CASE ALPHABETIC
CAIE T1,.CHALT ;CONVERT OLD ASCII ALTMODE
CAIN T1,.CHAL2 ; AND ALTERNATE FORM
MOVEI T1,.CHESC ; TO THE ESC CODE
RET
;GPSICD - GET PSI CODE FOR CHARACTER
; 1/ CHARACTER
; CALL GPSICD
; RETURN +1 ALWAYS, 1/ PSI CODE OR -1 IF NOT A POSSIBLE PSI CHAR
GPSICD::CAIG 1," " ;WITHIN NON-PSI CHAR RANGE?
JRST GPSIC1 ;NO
CAIL 1,175
JRST GPSIC3 ;NO
GPSIC2: SETO 1, ;YES, RETURN -1
RET
GPSIC1: CAIN 1," " ;SPACE?
SKIPA T1,[^D29] ;YES, RETURN CODE
CAIG 1,33 ;CONTROL CHAR OR ESC?
RET ;YES, CODE EQUAL CHARACTER
JRST GPSIC2 ;NOT A PSI CHAR
GPSIC3: CAIN 1,177 ;RUBOUT?
SKIPA T1,[^D28] ;YES, RETURN CODE
MOVEI 1,^D27 ;NO, IS OLD ALT-MODE
RET
;SKIP IF FLOCHR IS ENABLED AS A PSI
; T2/ DYN PTR
SKCOE: MOVX CX,1B<FLOCHR>
TDNN CX,TTPSI(T2)
RET
RETSKP
;SKIP IF FLOCHR NOT ENABLED AS A PSI
; T2/ DYN PTR
SKCON: MOVX CX,1B<FLOCHR>
TDNE CX,TTPSI(T2)
RET
RETSKP
SUBTTL TTCH7 (Empty TTBBUF, Process TTCS Words)
;TELETYPE INPUT CHANNEL 7 ROUTINE
;RUN EVERY SO OFTEN TO MOVE CHARACTERS FROM BIG BUFFER TO LINE BUFFERS,
;GENERATE ECHOS AND HANDLE CARRIER TRANSITIONS
;ENTERED BY CALL FROM SCHED
;CALLED IN SCHEDULER CONTEXT
TTCH7:: SKIPG TTBIGC ;BIG BUFFER EMPTY?
JRST TTCH7X ;YES, RETURN
AOS T3,TTBIGO ;[7342] NO. INCREMENT POINTER TO LOAD FROM
CAIN T3,TTBSIZ ;[7342] AT END OF TTBBUF?
SETZB T3,TTBIGO ;[7342] YES. POINT TO START OF TTBBUF
MOVE T1,TTBBUF(T3) ;[7342] GET NEXT ENTRY
SOS TTBIGC ;DECREMENT COUNT OF ENTRIES
HLRZ T2,T1 ;[7342] GET LINE NUMBER
MOVEI Q2,0(T1) ;[7342] SAVE ALL ORIGINAL FLAGS
SOS T3,TTSTAT(T2) ;[7342] Update TTBBF count
JN TTFXO,(T2),DOXON ;[7342] Send XON if needed
TTCH7A: TRNE T1,TTPIRQ ;NON CONTROLLING TERMINAL PSI?
JRST [ CALL STADYN ;CONVERT TO DYNAMIC DATA POINTER
JRST TTCH7 ;NONE
LOAD T1,TTOPSI,(T2) ;[7342] GET PSI
LOAD T2,TTPSFK,(T2) ;GET FORK
CAIE T2,-1
CALL PSIRQ ;IF FORK SETUP, REQUEST INTERRUPT
JRST TTCH7] ;AND TRY NEXT
TRNE T1,TTOIRQ ;[7342] OUTPUT INTERRUPT REQUEST?
JRST [ MOVX T3,.TICTO ;[7342] YES. OUTPUT BUFFER WENT EMPTY AND PROCESS
CALL TTPSRQ ; ENABLED FOR INTERRUPT. ISSUE IT
JRST TTCH7] ;DONE WITH WORD
TRNE T1,DLSCXF ;[7342] CARRIER TRANSITION?
JRST TT7CX ;YES
TRNN T1,DLSRCF ;[7342] RECEIVER?
JRST TTCH7 ;NO (SHOULD NOT HAPPEN) - RESUME SCAN
;A CHARACTER WAS FOUND. SAVE IT IN 8 BITS AND GO STORE IN BUFFER.
;THEN GO GET NEXT WORD FROM TTBBUF
ANDI T1,377 ;[7342] GET 7 BITS OF CHARACTER + PARITY
CALL TTCHI ;PUT CHAR IN LINE BFR
NOP ;IGNORE FAILURE
JRST TTCH7 ;DO NEXT
;This routine decides whether to send an XON to an XOFF'd line.
;The XON will only be sent in this one place to prevent a race
;condition that used to exist between TTYSRV and RSXSRV.
;
; T2 - Line number
; T3 - TTY status word for this line
DOXON: ANDI T3,TTFBB ;[7342] Get just the big buffer count for this line
JUMPN T3,TTCH7A ;[7342] Wait until no more chars in BIGBUF
CALL STADYN ;[7342] (T2/T2) Get dynamic data block
JRST TTCH7 ;[7342] Not all there
LOAD T3,TIMAX,(T2) ;[7342] Get maximum size of buffer
MOVE T4,TTICT(T2) ;[7342] Get current input buffer count
DYNST ;[7342] Back to static pointer
CAIL T3,MINICT(T4) ;[7342][7390] Too many characters in BIGBUF?
CALL SNDXNS ;[7342] () No, he needs an XON
JRST TTCH7A ;[7342] Continue...
;SEND XON IF NECESSARY
; SNDXON
; T2/ DYNAMIC
;SNDXNS
; T2/ STATIC
SNDXON: SAVEAC <T1,T2> ;[7342]
MOVE T1,TTICT(T2) ;[7342] Get input character count
CAIL T1,MINXON ;[7342] Few enough to allow an XON?
RET ;[7342] No, don't send an XON now
DYNST ;[7342]
JE TTFXO,(T2),R ;[7342] Do nothing if not XOFF'd
LOAD T1,TTFBB,(T2) ;[7342] Get count of chars in TTBBU
CAIL T1,MAXBBC ;[7342] Is TTBBUF too full with stuff from this line?
RET ;[7342] Yes, don't XON him yet
SNDXNS: TDCALL S,<<FE,SNDXN2>,<MC,MCSXON>,<CH,SNDXN2>> ;SEND XON IF NEEDED
RET
;TTCH7..
;TTBBUF IS EMPTY. DO DEVICE DEPENDENT FUNCTIONS IF NEEDED
TTCH7X: CALL CKQLN ;CHECK QUEUED LINES
CALL TTYQOC ;START OUTPUT ON QUEUED LINES
CALL XTRCH7 ;DO CONFIGURATION DEPENDENT SCANNING (IN STG)
CALL MCSRV ;DECNET LINES
SKIPGE TTQCNT ;HAVE SOME SCANNING TO DO?
RET ;NO. ALL DONE THEN
;BEFORE LEAVING, CHECK 8 LINES TO SEE IF THERE IS A SHORT BLOCK TO RELEASE
TTHNG4: MOVE 2,TTCQLN ;GET NEXT LINE TO BE CHECKED
MOVEI 4,10 ;LIMIT OF 10 LINES FOR THIS PASS
TTCQ3: SKIPGE TTQCNT ;ALL DONE?
JRST TTCQ5 ;YES, GO SAVE LINE NUMBER AND RETURN
CALL CKSBK ;CHECK FOR SHORT BLOCK
;GO TO NEXT LINE. IF THE LINE TYPE CHANGES, DON'T PROCEED WITH THE NEW
;LINE. INSTEAD, GO TO THE NEXT LINE TYPE AFTER THE ONE JUST PROCESSED.
;THIS CODE ASSUMES THAT ALL LINES OF A GIVEN TYPE ARE NUMBERED CONSECUTIVELY.
TTCQ2: LOAD C,TTSTY,(B) ;NO. GET CURRENT TYPE
ADDI B,1 ;GO TO NEXT LINE
CAIL B,NLINES ;VALID LINE NUMBER?
JRST TTCQ6 ;NO. GO TO NEXT LINE TYPE
LOAD A,TTSTY,(B) ;GET TYPE OF NEXT LINE
CAMN C,A ;NEW TYPE?
JRST TTCQ1 ;NO. GO ON
;FINISHED THE CURRENT LINE TYPE OR THE CURRENT TYPE IS NOT TO BE PROCESSED
;GO TO THE NEXT TYPE AND SEE IF IT IS TO BE PROCESSED
TTCQ6: AOS C ;GO TO NEXT LINE TYPE
CAIL C,NLTYPS ;BEYOND END OF LEGAL TYPES?
SETZ C, ;YES. GO BACK TO BEGINNING
MOVE B,TT1LIN(C) ;GET FIRST LINE OF THIS TYPE
JUMPL B,TTCQ6 ;IF LINE GROUP IS NOT HERE, GO GET NEXT
;PROCESS THIS LINE UNLESS WE HAVE DONE ENOUGH FOR THIS PASS
TTCQ1: SOJG 4,TTCQ3 ;DONE ENOUGH FOR THIS TIME?
TTCQ5: MOVEM 2,TTCQLN ;YES, START AT THIS LINE NEXT TIME
RET
;TTCH7...
CKSBK: SAVET
CALL STADYN ;POINT TO DYNAMIC DATA
SKIPG T2 ;NOT FULLY ACTIVE. ANY DYNAMIC DATA?
RET ;INACTIVE, BECOMING ACTIVE, OR FULL-LENGTH
JN <TTLCK,TTSAL>,(T2),R ;DON'T RELEASE IF DOING SENDALL OR LOCKED
JN TTSHT,(T2),DOLIN2 ;IF SHORT AND SENDALL DONE, RELEASE BLOCK
CALL TTSOBE ;IS OUTPUT COMPLETE?
RET ;NOT FINISHED WITH THE BLOCK YET
;HAVE A MESSAGE BLOCK. RELEASE THE BLOCK AND RELEASE THE ASSOCIATED
;OUTPUT BUFFERS (IF ANY)
SKIPE T3,TTOOUT(T2) ;RELEASE OUTPUT BUFFERS IF ANY
CALL TTRLBF ; ARE ASSIGNED
;READY TO RELEASE THE BLOCK. T2 HAS ITS ADDRESS
DOLIN2: MOVE T1,T2 ;T1/ ADDRESS OF BLOCK TO RELEASE
DYNST ;GET LINE NUMBER
SETZM TTACTL(T2) ;INDICATE NO DATA FOR THIS LINE
CALL RELRES ;RELEASE THE BLOCK
SOS TTQCNT ;ONE MORE DONE
RET
;TTCH7..
;TTQAD - ADD ITEM TO CONTROL QUEUE
;ACCEPTS:
; T1/ TIME UNTIL EVENT (ACTUAL MAY BE LONGER)
; T2/ INTERNAL LINE NUMBER
; T3/ ROUTINE TO BE CALLED AT GIVEN TIME
; N.B. - ROUTINE MUST BE IN TABLE HEREIN
; CALL TTQAD (TTQAD1 FOR DEFAULT TIME LIMIT)
;RETURNS +1: ALWAYS
TTQAD1: MOVEI T1,^D3000 ;ITEM TO BE DONE IN 3 SEC.
TTQAD:: SAVEAC <T4>
ADD T1,TODCLK ;COMPUTE ABSOLUTE TIME TO DO FUNCTION
CAMLE T1,TTCSTM(T2) ;LATER THAN NOW SET?
MOVEM T1,TTCSTM(T2) ;YES, SAVE TIME FOR DOING THE FUNCTION
MOVSI T4,-NTQFN ;SCAN TABLE FOR SPECIFIED ROUTINE
TTQAD2: CAMN T3,TQFNT(T4) ;THIS ONE?
JRST TTQAD3 ;YES
AOBJN T4,TTQAD2 ;NO
BUG.(CHK,TTQADX,TTYSRV,SOFT,<TTYSRV - Unknown function requested>,<<T3,ADR>>,<
Cause: TTQAD has been called with a routine address that is not
in its local table of known routines.
Action: Look at the stack to find the call to TTQAD. Then find
the name of the routine being passed and add it to the TQFNT
table.
Data: ADR - Address of bogus routine
>)
RET
TTQAD3: MOVE T1,BITS(T4) ;GET BIT TO REPRESENT FUNCTION
IORM T1,TTCSAD(T2) ;SET IT
MOVE T3,T2
IDIVI T3,^D36 ;GET LOCATION IN BIT MATRIX
MOVE T4,BITS(T4)
IORM T4,TQLNQ(T3) ;NOTE LINE NEEDS SERVICE
RET
;SERVICE QUEUED LINES
CKQLN: SAVEAC <P1,P2,P3>
MOVSI P1,-NTSQWD ;SET TO SCAN BIT MATRIX
CKQL1: SKIPE T1,TQLNQ(P1) ;ANY LINES HERE?
CKQL2: JFFO T1,CKQL3 ;YES, GET ONE
AOBJN P1,CKQL1
RET
CKQL3: MOVE P2,BITS(T2) ;GET BIT FOR LINE
HRRZ T3,P1
IMULI T3,^D36 ;COMPUTE LINE NUMBER
ADD T2,T3
MOVE T1,TODCLK
CAMGE T1,TTCSTM(T2) ;TIME TO DO FUNCTION
JRST CKQL4 ;NO, MOVE ON TO NEXT LINE
ANDCAM P2,TQLNQ(P1) ;REMOVE LINE FROM ATTENTION TABLE
SKIPE T3,TTCSAD(T2) ;ANY FUNCTIONS REQUESTED?
CKQL5: JFFO T3,CKQL6 ;FIND A FUNCTION TO DO
CKQL4: MOVN T1,P2 ;LOOK AT REST OF WORD ONLY
ANDCA T1,TQLNQ(P1)
JRST CKQL2
CKQL6: MOVE P3,BITS(T4) ;SAVE FUNCTION BIT
ANDCAM P3,TTCSAD(T2) ;CLEAR FUNCTION REQUEST (MAY BE SET AGAIN BY ROUTINE)
HRRZ T1,TQFNT(T4) ;GET ROUTINE ADDRESS
CALL [ SAVEAC <T2> ;SAVE LINE NUMBER
CALLRET 0(T1)] ;DO FUNCTION
MOVE T1,TODCLK
CAMGE T1,TTCSTM(T2) ;TIME BUMPED?
JRST CKQL4 ;YES, QUIT THIS LINE
MOVN T3,P3 ;LOOK AT REST OF BITS
ANDCA T3,TTCSAD(T2)
JRST CKQL5
;TABLE OF KNOWN TTQAD FUNCTIONS - MAXIMUM 36
TQFNT: TTTOBL
TTSN10
TTCOF
TTCON1
NTYCOF
CKSALL
CKNOIS
NTQFN==.-TQFNT
IFG NTQFN-^D36,<PRINTX ?TQFNT TOO LARGE>
;TTCH7..
;WORD IN TTBBUF INDICATED CARRIER TRANSITION (DLSCXF WAS SET).
;IF CARONB IS SET, CARRIER WENT ON. IF NOT, CARRIER WENT OFF
TT7CX: TRNN A,CARONB ;DID CARRIER JUST COME ON?
JRST TTCX1 ;NO, OFF
;CARRIER WENT ON. IF THE LINE IS IN USE OR A JOB IS BEING
;CREATED ON IT, DON'T GO CREATE ANOTHER JOB ON IT
SETONE TTCON,(B) ;SET CARRIER ON FOR THIS LINE
TDCALL S,<<FE,RSKP>,<CH,RSKP>>
JRST TTCH7 ;DO NOTHING
CALL TTCON1 ;CREATE JOB
JRST TTCH7 ;DONE
;TTCON1 - CREATE JOB AS RESULT OF CARRIER COMING ON
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTCON1
;RETURNS +1: ALWAYS
;CARRIER HAS COME ON FOR REAL. TREAT THIS LIKE A CTRL/C AND CREATE
;A JOB IF POSSIBLE
TTCON1: MOVEM B,C ;SAVE LINE NUMBER
CALL STADYN ;SEE IF THE LINE IS INACTIVE
SKIPE B ;YES. CREATE JOB ON IT IF ALLOWED
RET ;ACTIVE OR BECOMING ACTIVE. IGNORE CARRIER-ON
MOVE B,C ;RESTORE LINE NUMBER
MOVE A,FACTSW ;SEE IF REMOTE LOGINS ALLOWED
TXNN A,SF%RMT ;...
JRST [ HRROI A,[ASCIZ /
?LOGGING IN ON DATASETS IS CURRENTLY DISALLOWED.
/]
CALL TTEMSS ;NO. SAY SO
RET] ;DONE
SETONE TTFSP,(B) ;SAY LINE NEEDS SPEED SET
CALL TTC7SK ;GO CREATE JOB
JFCL ;ALWAYS DOES RETSKP
RET
;TTCH7...
;CARRIER WENT OFF
TTCX1: JE TTCON,(B),TTCH7 ;IF CARRIER WASN'T ALREADY ON, IGNORE IT
SETZRO TTCON,(B) ;INDICATE CARRIER NO LONGER ON
TDCALL S,<<FE,RSKP>,<CH,RSKP>>
JRST TTCH7 ;NOTHING TO DO NOW
CALL NTYCOF ;DO IT
JRST TTCH7
;TTCOF - ROUTINE TO SEE IF CARRIER IS STILL OFF. SCHEDULED (VIA TTQAD)
;TO BE CALLED FOR A LINE WHEN CARRIER GOES OFF ON THE LINE
;NOT USED FOR FRONT END LINES
;ACCEPTS:
; T2/ LINE NUMBER
;RETURNS +1: ALWAYS
; T2/ LINE NUMBER
TTCOF: JN TTCON,(B),R ;IF CARRIER IS BACK ON NOW, DON'T HANGUP
CALL NTYCOF
CALLRET TTHU0 ;DO HANGUP-REACTIVATE
;NTYCOF - HANDLE CARRIER OFF
;ACCEPTS:
; 2/INTERNAL LINE NUMBER
; CALL NTYCOF
;RETURN +1: ALWAYS,
; T2/ LINE NUMBER
;CALLED WHEN CARRIER GOES OFF FOR ANY PHYSICAL LINE. FLUSHES OUTPUT,
;ISSUES AN INTERRUPT IF A PROCESS HAS ENABLED FOR CARRIER-OFF INTERRUPT,
;ISSUES A MONITOR-INTERNAL INTERRUPT THAT CAUSES THE TOP FORK
;TO GO TO JOBCOF IN MEXEC
;ALSO CALLED FOR A LINE ASSOCIATED WITH A PTY WHEN THE PTY IS CLOSED.
NTYCOF::CALL TTCOB1 ;FLUSH OUTPUT
CALL CHKCTT ;SEE IF THIS IS A CONTROLLING TERMINAL
CALLRET TTJBDT ;NO. DON'T ISSUE INTERRUPT
MOVE B,C ;YES. B/ADDRESS OF DYNAMIC DATA
MOVEI C,.TICRF ;C/CODE FOR THIS CONDITION
MOVE A,BITS(C) ;GET THE BIT
PUSH P,B ;SAVE ADDRESS OF DYNAMIC DATA
TDNE A,TTPSI(B) ;IS THE CODE ENABLED?
CALL TTPSI2 ;YES. GIVE THE INTERRUPT
POP P,B ;RESTORE ADDRESS OF DYNAMIC DATA
DYNST ;GET BACK THE LINE NUMBER
CALLRET TTJBDT ;GO DETACH JOB
;TTJBDT - ROUTINE TO GENERATE AN INTERRUPT WHEN CARRIER GOES OFF
;ACCEPTS:
; T2/ LINE NUMBER
;RETURNS +1: ALWAYS
; T2/ LINE NUMBER
;ISSUES AN INTERRUPT TO THE TOP FORK IN THE JOB. CAUSES THE JOB TO
;BE DETACHED
TTJBDT::CALL TTCOB1 ;CLEAR OUTPUT BUFFERS
CALL CHKCTT ;SEE IF THIS IS A CONTROLLING TERMINAL
RET ;NO
SETONE TOFLG,(T3) ;FLUSH SUBSEQUENT OUTPUT
REPEAT 0,< ;FOLLOWING CODE DOES NOT
;WORK BECAUSE IT CAUSES PAGE
;FAULTS IN SCHEDULER. NEED TO
;MOVE THIS ELSEWHERE SOME DAY
TMNE TTAUT,(B) ;IS THIS AN AUTO SPEED LINE?
SETOM TTSPWD(B) ;YES. INIT SPEED
> ;END OF REPEAT 0
PUSH P,B ;SAVE LINE NUMBER
HRRZ B,JOBPT(A) ;GET TOP FORK INDEX
SETONE <FKPS0,FKICO>,(B) ;REQUEST CARRIER OFF ACTION
CALL PSIR4
POP P,B ;RESTORE LINE NUMBER
RET
;TTCH7..
;CHKCTT - CHECK TO SEE TERMINAL IS A CONTROLLING TERMINAL FOR A JOB
;ACCEPTS:
; T2/ LINE NUMBER
; CALL CHKCTT
;RETURNS +1: NOT A CONTROLLING TERMINAL
; T2/ LINE NUMBER
; +2: CONTROLLING TERMINAL,
; T1/ JOB NUMBER
; T2/ LINE NUMBER
; T3/ ADDRESS OF DYNAMIC DATA
CHKCTT: SASUBR <CHKCJN,CHKCSV,CHKCSD>
SETOM CHKCJN ;SAY NO CONTROLLING JOB
CALL STADYN ;POINT TO DYNAMIC DATA
RET ;NOT ACTIVE
LOAD C,TCJOB,(B) ;GET OWNING JOB
CAIN C,-1 ;IS THERE ONE?
RET ;NONE.
MOVEM C,CHKCJN ;SAVE JOB NUMBER
MOVEM B,CHKCSD ;RETURN DYNAMIC PTR
HLRZ A,JOBPT(C) ;GET CONTROLLING TERMINAL FOR JOB
CAMN A,CHKCSV ;IS THIS THE CONTROLLING TERMINAL?
RETSKP ;YES, SUCCESS
CHKCT1: RET ;FAILURE RETURN
ENDSA. ;END SASUBR
;TTHU0 - HANGUP-REACTIVATE SEQUENCE
;ACCEPTS:
; T2/ LINE NUMBER
; CALL TTHU0
;RETURNS +1: ALWAYS
;SCHEDULED BY TTCOF WHEN A LINE HAS LOST CARRIER. CAUSES HANGUP OF THE
;LINE FOLLOWED BY ACTIVATE
TTHU0: TDCALL S,<<FE,TTHU2>,<TV,TVTDTS>>
RET
SUBTTL TTCHI (Move Char From TTBBUF To Input Buffer)
;TTCHI - PROCESS CHARACTER AS INPUT
;ACCEPTS:
; T1/ CHARACTER IN 8 BITS
; T2/ INTERNAL LINE NUMBER
; CALL TTCHI
;RETURNS +1: ALWAYS
; T2/ LINE NUMBER
;CALLED BY TTCH7 WHEN A CHARACTER HAS BEEN FOUND IN TTBBUF
;INITIATES AN INTERRUPT IF NEEDED; ECHOES IF APPROPRIATE;
;WAKES UP WAITING PROCESS IF NEEDED; STORES CHARACTER IN LINE BUFFER
;CALLED FROM SCHEDULER CONTEXT AND PROCESS CONTEXT
;IF IN PROCESS CONTEXT, MUST BE NOSKED, SO THAT THE SETTING AND
;TESTING OF TCOERR IN TCOUT WILL BE CONSISTENT
;TTCHID - ALTERNATE ENTRY POINT, T2/ DYNAMIC PTR
TTCHID::SAVEAC <T2,Q1,FX>
DYNST ;GET LINE NUMBER
JRST TTCHD1
TTCHI:: CAIL 2,NLINES ;REASONABLE LINE?
RET ;NO
SAVEAC <T2,Q1,FX>
TTCHD1: STKVAR <TTCHSV,TTCHFL> ;MUST COME AFTER SAVELN
MOVEM T2,TTCHSV ;SAVE LINE NUMBER
MOVEM T1,TTCHIC ;SAVE ORIGINAL CHARACTER
ANDI T1,377 ;USE 8 BITS FOR LOCAL COMPARES
CALL STADYN ;IS THIS A FULLY ACTIVE LINE?
JRST TTC7N ;NO. GO HANDLE THIS CASE SEPARATELY
MOVX T3,1B<.TITCE> ;Two character
TDNN T3,TTPSI(T2) ; escape sequence enabled ?
JRST TTCHD2 ;No.
CALL TTTWES ;(T1,T2/T1,T2) Yes. Check it out.
RETSKP ;Drop the character.
TTCHD2: JN TTNUS,(T2),TTMCNU ;JUMP IF NETWORK USER STATE
CALL TTCHXX ;CHECK FOR XON, XOFF
RETSKP ;IT WAS, RETURN NOW
JRST TTCHIF ;CONTINUE
;SEE IF CHARACTER IS XON OR XOFF AND HANDLE AS NECESSARY
; RETURN +1: WAS XOFF OR XON
; +2: WAS NOT XOFF OR XON
TTCHXX::JE TT%PGM,TTFLGS(T2),RSKP ;IF IGNORING XOFF/XON, CONTINUE
CAIE 1,PGMONC+1B28
CAIN 1,PGMONC ;XON?
IFNSK.
LOAD T3,TTUPC,(T2) ;YES, SEE IF PAGE UNPAUSE CHARACTER TOO
TMNN TTRXF,(T2) ;NOW IN COMMAND PAUSE?
CAIE T3,PGMONC
CALLRET TTXONC ;UNPAUSE COMMAND ONLY
CALLRET TTXONP ;PAGE UNPAUSE ONLY
ENDIF.
CAIE 1,PGMOFC ;XOFF?
CAIN 1,PGMOFC+1B28
SKIPA ;YES
RETSKP ;NO
TTXOFC: JN TTRXF,(T2),R ;SEE IF ALREADY STOPPED
SETONE TTRXF,(T2) ;YES. INDICATE CTRL/S TYPED
TMNN <TTSAL,TTHPO>,(T2) ;SPECIAL OUTPUT GOING?
IFNSK. <
TDCALL D,<<FE,TTCHI3>,<CH,TTCHI3>> ;NO, STOP THE LINE
>,<
TDCALL D,<<FE,TTXON1>,<CH,TTXON1>>> ;YES, RESTART THE LINE
RET
;TTXON - DO 'XON' - CLEAR STOP FLAG AND RESTART OUTPUT TO TERMINAL IF NECESSARY
; TTXONA - RESTART ALL CASES
; TTXONC - RESTART FROM COMMAND STOP ONLY
; TTXONP - RESTART FROM PAGE STOP ONLY
; TTXONF - RESTART ALL CASES AND FORCE XON TO FRONT END IF NECESSARY
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTXONx
;RETURNS +1: ALWAYS
;CALLED IN ANY OF THE FOLLOWING CASES:
; CLEAR OUTPUT BUFFER
; STPAR
; USER TYPES XON
TTXONA: SETZRO TTSFG,(T2) ;CLEAR CTRL/S
TTXONC: JE TTRXF,(T2),TTXON2 ;JUMP IF HOST SIMULATED XOF ONLY
TDCALL D,<<FE,TTXON1>,<MC,MCLNON>,<CH,TTXON1>>
SETZRO TTRXF,(T2)
TTXON2: MOVE 3,TTOCT(2) ;GET COUNT OF CHARACTERS IN OUTPUT BUFFER
CONSO PI,77000 ;SKIP OKSKED IF NOT AT PI LEVEL 7
NOSKD1 ;NOSKED FOR STRTOU CALL
CALLRET STRTOU ;RESTART OUTPUT
TTXONP: SETZRO TTSFG,(T2)
JRST TTXON2 ;RESTART OUTPUT
TTXONF: IFQN. TTRXF,(T2) ;WAS XOFF RECIEVED
SETONE TTXFF,(T2) ;YES, FORCE XON TO FRONT END
ENDIF.
JRST TTXONA ;JOIN TO RESTART ALL CASES
;CHECK FOR MCB OR LAT TTY OR CTY
;ACCEPTS: T2/ TDB
;RETURNS: +1 LINE IS CTY, LAT, OR MCB
; +2 LINE IS NEITHER CTY, LAT, NOR MCB
CTYMCB::LOAD T3,TINTL,(T2) ;GET LINE NUMBER
CAMN T3,CTYLNO ;IS IT THE CTY?
RET ;YES
LOAD T3,TLTYP,(T2) ;GET LINE TYPE
CAIE T3,TT.LAH ;A LAT HOST OR
CAIN T3,TT.MCB ; AN MCB LINE?
RET ;YES
RETSKP ;NO
;Table of interrupt routines for two character escape sequences
;indexed by TTETP field in TTY block
;ANY ROUTINE IN THIS TABLE MUST RETURN +1 ALWAYS AND PRESERVE T2
TTESC: IFIW ! TTEUSR ;From user context - give PSI.
REPEAT 7,< IFIW ! R> ;7 slots are free
;Give PSI for the two character escape sequence (user mode)
;CALL TTEUSR with:
; T2/ address of TTY dynamic data block
;Returns +1 always with T2 preserved
TTEUSR: SAVEAC <T2>
MOVEI T3,.TITCE ;Get two character escape sequence code
CALLRET TTPSI2 ;(T2,T3) Give interrupt (trashes T2)
;DO PAGE PAUSE ON COMMAND FROM USER
;DO PAGE PAUSE ON COMMAND FROM USER
;THE HEURISTICS AREN'T NEEDED UNLESS WE ARE USING A CHARACTER THAT
;ALSO HAS SOME OTHER FUNCTION (E.G. ^U). IN THAT CASE, WE ONLY
;WANT TO DO THE PAUSE IF THE CHARACTER IS NOT PART OF REGULAR TYPEIN
TTXOFP: LOAD T3,TTPPC,(T2) ;GET PAUSE CHARACTER
CAIL T3,40 ;A CONTROL CHAR?
IFSKP.
MOVE T3,BITS(T3) ;YES, SEE WHAT KIND
TDNN T3,TTXOBM ;HAS SYSTEM USE IN INPUT STREAM?
JRST TTXFP1 ;NO, EXECUTE IT
ENDIF.
SKIPE TTICT(T2) ;ANY TYPEAHEAD?
RET ;YES, DO NOTHING
LOAD T3,TWFRK,(T2)
CAIN T3,-1 ;OR FORK WAITING?
IFSKP.
MOVE T3,TTOCT(T2) ;YES, SEE HOW MUCH OUTPUT QUEUED
CAIG T3,^D40 ;LOTS?
RET ;NO, DON'T PAUSE
ENDIF.
TTXFP1: SETONE TTSFG,(T2) ;PAUSE
RETSKP
;MASK OF CONTROL CHARACTERS WHICH HAVE DEFINED SYSTEM USE IN
;INPUT STREAM
TTXOBM: BYTE (1)0,0,0,0,0,0,1,0,1,1,1,1,1,1,0,0,0,0,1,0,0,1,1,1,0,0,1,0,0,0,0,0
TTCHIF: ANDI T1,177 ;USE 7 BITS FOR LOCAL COMPARES
JE TTPRM,(T2),TTCHI2 ;YES. PERMANENT BLOCK?
LOAD T3,TCJOB,(T2) ;YES. GET CONTROLLING JOB
CAIN T3,-1 ;IS THERE ONE?
JRST TTC7N ;NO
;SEE IF ANY PAGE PAUSE OR UNPAUSE FUNCTIONS REQUESTED
TTCHI2: JE TT%PGM,TTFLGS(T2),TTCHI1 ;BYPASS ALL THIS IF NO PAGE MODE
JE TTNXO,(T2),TTCHI1
LOAD T3,TTUPC,(T2) ;GET PAGE UNPAUSE CHARACTER
CAME T1,T3 ;AND UNPAUSE ON PAGE CHARACTER?
IFSKP.
TMNN TTSFG,(T2) ;ALREADY PAUSING?
IFSKP.
CALL TTXONP ;YES, RESTART OUTPUT
RETSKP ;RETURN NOW, LOSE CHARACTER
ENDIF.
LOAD T3,TTPPC,(T2) ;NOT PAUSING NOW,
CAMN T1,T3 ;THIS THE PAUSE CHARACTER TOO?
IFSKP.
CAIL T1,40 ;NO, SEE IF KEEP IT OR FLUSH IT
IFSKP.
MOVE T3,BITS(T3) ;A CONTROL CHAR, SEE WHAT KIND
TDNN T3,TTXOBM ;HAS SYSTEM USE IN INPUT STREAM?
RETSKP ;NO, FLUSH IT
ENDIF.
ELSE.
CALL TTXOFP ;YES, MAYBE PAUSE NOW
IFSKP. <RETSKP> ;RETURN NOW IF PAUSED
ENDIF.
ENDIF.
LOAD T3,TTPPC,(T2) ;GET PAGE PAUSE CHARACTER
CAME T1,T3 ;AND PAUSE CHARACTER?
IFSKP.
CALL TTXOFP ;YES, MAYBE PAUSE NOW
IFSKP. <RETSKP> ;DID PAUSE, LOSE CHARACTER
ENDIF.
;LINE IS ACTIVE. IT MAY OR MAY NOT BE A CONTROLLING TERMINAL FOR
;A JOB. HOWEVER, THE JOB CANNOT DO AN ATI EXCEPT ON ITS CONTROLLING
;TERMINAL. THEREFORE, SEE IF THE JOB HAS DONE AN ATI FOR THE CHARACTER
TTCHI1: MOVE T3,T1 ;COPY CHAR
CALL GPSICD ;GET PSI CODE FOR CHAR
EXCH 1,3 ;1/CHARACTER; 3/CODE OR -1
JUMPL 3,TTCHI6 ;-1 MEANS NO CODE
MOVE Q1,BITS(3) ;BIT FOR THIS CODE
TDNE Q1,TTPSI(2) ;CODE ENABLED?
JRST TTCH11 ;YES
SKIPE CTRLOF ;NEW CTRL-O HANDLING?
CAIE T1,FLOCHR ;AND A CTRL-O?
JRST TTCHI6 ;NO
; ..
;WE HAVE A ^O AND WE WANT MONITOR HANDLING OF IT. ^O IS A TOGGLE, SO
;WE DO SOMETHING DIFFERENT DEPENDING ON ITS CURRENT STATE.
; ..
CALL CKPHYD ;PTY?
JRST TTCHI6 ;YES, DO NOTHING
CALL [ SAVEAC <T1> ;YES
CALLRET TTXONA] ;CLEAR POSSIBLE XOFF
TMNN TTFLO,(T2) ;ALREADY ON?
IFSKP. <
CALL CLOFLG ;YES, DO MARKER
RETSKP>
MOVE T1,[670000,,[BYTE (9)"[","^","O",".",".",".",.CHDEL]]
MOVEM T1,TTSAL2(T2) ;SEND INDICATION (WITH FILLS ON CR AND LF)
SETONE TTHPO,(T2) ;NOTE HP OUTPUT QUEUED
SETONE TTFLO,(T2) ;FLUSH OUTPUT
LOAD T3,TWFRK,(T2) ;SEE IF A FORK WAITING
CAIE T3,-1
CALL CLOFLG ;YES, PUT MARKER THROUGH
RETSKP
;TERMINAL NOT IN PAGE MODE OR THIS WAS NOT XON OR XOFF
;IF TERMINAL DATA MODE IS BINARY, GO STORE CHARACTER IN LINE BUFFER
;WITHOUT TRANSLATION OR ECHOING
TTCHI6: AOS NTTYIN ;COUNT INPUT
LOAD 3,TYLMD,(2) ;CHECK MODE NOW IN FORCE
CAIE 3,.TTBIN ;BINARY?
JRST TTCHI4 ;NO.
TTMCI1::LOAD 3,TIMAX,(2) ;YES. GET CAPACITY OF INPUT BUFFER
CAMLE 3,TTICT(2) ;ROOM FOR CHAR IN INPUT BUFFER?
JRST TTCHI9 ;YES. GO PUT IT IN
RET ;NO. LOSE CHARACTER
;SOME TRANSLATION (OUTPUT OR ECHOING OR BOTH) IS REQUIRED BY TERMINAL
;DATA MODE. SEE IF ECHOING IS REQUIRED
TTCHI4: JUMPE 1,RSKP ;FLUSH NULLS ASAP
LOAD 3,TIMAX,(2) ;CAPACITY OF INPUT BUFFERS
CAMG 3,TTICT(2) ;FULL?
JRST TTCH12 ;YES, ECHO BELL
MOVE 3,TTFLGS(2)
TRNE 3,TT%DUM ;REGULAR FDX LINE?
JRST TTCHI7 ;HDX - 'ECHO' IMMED
TRNN 3,TT%ECO ;ECHOS ON?
JRST TTCHI9 ;NO
TRNE 3,TT%ECM ;STANDARD ECHO MODE?
JRST TTCHI7 ;NO, IMMEDIATE ALWAYS
LOAD 4,TWFRK,(2) ;GET WAITING FORK IF ANY
CAIN 4,-1 ;IS THERE A WAITING FORK?
JRST TTCHI9 ;NO. DON'T ECHO NOW
; ..
;EITHER IMMEDIATE ECHOING IS REQUIRED OR DEFERRED IS REQUIRED AND
;A FORK IS IN INPUT WAIT ON THIS TERMINAL. ECHO THE CHARACTER NOW
;AND SET TTXECO WITH THE CHARACTER IN TTCHIC. THIS WILL BE STORED
;IN THE LINE BUFFER SO THAT TCI WILL NOT ECHO IT AGAIN
; ..
TTCHI7: CALL CLOFLG ;CLEAR CTRL-O FLAG IF NECESSARY
MOVE T3,TTFLGS(T2) ;GET FLAGS FOR TTRAIS
SETOM IMECHF ;FLAG ECHO CHARACTER FOR TCOUT
CAIE T1,.CHCRT ;CR?
JRST TTCH8A ;NO CHECK RAISES
SETZM TCOERR ;YES, INIT ERROR INDICATOR
CALL TCOE ;YES, ECHO CR-LF
LOAD T1,TTDUM,(T2) ;GET THE DUPLEX MODE
CAIE T1,.TTHDX ;HDX?
CAIN T1,.TTLDX ;...
JRST [ SETONE TTFWK,(T2) ;MAYBE A APPLICATION BLOCK LINE (X29)
JRST .+1] ;SO WAKE IT
SKIPA T1,[.CHLFD] ;ECHO THE LINE FEED
TTCH8A: CALL TTRAIS ;RAISE FOR ECHO IF NECESSARY
TTCHI8: SETZM TCOERR ;INIT ERROR INDICATOR
SETZM TTCHFL ;INITIALIZE ECHO INDICATOR
CALL TCOE ;ECHO VIA NORMAL OUTPUT STREAM
SKIPE TCOERR ;DID TCOUT FAIL?
JRST [ SETZM IMECHF ;FAILED TO ECHO. RESET IMMEDIATE ECHO FLAG
SETOM TTCHFL ;INDICATE CHARACTER NOT ECHOED
JRST TTCHI9] ;GO STORE CHARACTER WITHOUT MARKING IT ECHOED
MOVEI T4,TTXECO ;CHARACTER WAS ECHOED. INDICATE IT
IORM T4,TTCHIC ; SO THAT TCI WON'T ECHO IT LATER
SETZM IMECHF ;RESET IMMEDIATE ECHO INDICATOR
; ..
;TTCHI..
;HERE IF THE CHARACTER IS NOT AN INTERRUPT CHARACTER, OR THE
;JOB HAS ENABLED ONLY FOR DEFERRED INTERRUPT ON THE CHARACTER
;IF ECHOING WAS REQUIRED, IT HAS BEEN DONE
;GET INPUT BUFFER IF NEEDED; PUT CHAR IN BUFFER
; 2/ ADDRESS OF DYNAMIC DATA
;..
TTCHI9: SKIPN 3,TTIIN(2) ;INPUT BUFFERS EXIST?
JRST [ LOAD 3,TTNIN,(2);NO, GET NUMBER TO ASSIGN
CALL TTGTBF ;ASSIGN THEM
JRST TTCH12 ;NO BUFFERS, DING
MOVEM 3,TTIOUT(2) ;SAVE BYTE POINTER FOR REMOVING CHARACTERS
JRST .+1]
TDNN 3,WRPMSK
JRST [ LDB 1,[POINT 6,3,5] ;LOOK AT P,S FIELD OF BYTE POINTER
CAIE 1,73 ;POINTING TO LAST BYTE?
JRST .+1 ;NO.
HRRZ T4,T3 ;YES. GET ADDRESS OF CURRENT WORD
HRR T3,1-TTSIZ(T4) ;POINT TO NEXT BUFFER IN CHAIN
JRST .+1]
MOVE T4,TTCHIC ;GET INPUT CHARACTER
IDPB T4,3 ;STORE IN INPUT LINE BUFFER
MOVEM 3,TTIIN(2) ;SAVE UPDATED POINTER FOR ADDING TO BUFFER
AOS 3,TTICT(2) ;INCREMENT COUNT OF CHARACTERS
;IF INPUT BUFFER IS FULL, SEND XOFF TO TERMINAL
LOAD D,TIMAX,(B) ;GET CAPACITY OF BUFFERS
CAIL C,-MINICT(D)
JRST [ PUSH P,B ;SAVE TTY
DYNST
TDCALL S,<<FE,SNDXO2>,<CH,SNDXO2>> ;SEND XOFF
POP P,B ;RESTORE LINE
JRST .+1]
TMNE TTNUS,(T2) ;NET USER?
JRST [ CALL REQNS ;YES, QUEUE A SEND
RETSKP] ;AND DONE
;IF THIS STORE MADE THE BUFFER GO NON-EMPTY, AND JOB HAS ENABLED FOR
;INTERRUPTS ON THAT CONDITION, ISSUE THE INTERRUPT
CAIN 3,1 ;JUST BECAME NON-0?
CALL TTCH22
;..
;TTCHI..
;IF A FORK IS IN INPUT WAIT ON THIS TERMINAL, WAKE IT UP IF EITHER
; 1. THE TERMINAL DATA MODE IS BINARY
; 2. THE INPUT BUFFER IS FULL
; 3. THE CHARACTER IS IN A WAKEUP CLASS SPECIFIED BY THE JOB
;..
LOAD 3,TWFRK,(2) ;IF NO FORK WAITING FOR THIS LINE,
CAIN 3,-1
JRST TTCH1X ; THEN SKIP WAKEUP CHECKS
LOAD 3,TYLMD,(2) ;GET TERMINAL DATA MODE FOR LAST CHARACTER
CAIE 3,.TTBIN ;WAKE ALWAYS IF BINARY
IFSKP.
CALL TTFWAK ;WAKE LISTENING PROCESS
JRST TTCH1X ;SUCCESS
ENDIF.
LOAD 3,TIMAX,(2) ;CAPACITY OF INPUT BUFFERING
SUBI 3,MINCT1 ;LESS AN ARBITRARY AMOUNT
CAMLE 3,TTICT(2) ;BUFFER NOW THAT FULL?
IFSKP.
SETONE TTFWK,(2) ;YES. FORCE WAKEUP OF WAITING FORK
ENDIF.
CAIN T1,.CHCRT ;IS THIS A CARRIAGE RETURN
MOVEI T1,.CHLFD ;YES-FORCE IT TO BE ALINE FEED
SKIPL TTCHFL ;DID WE FAIL TO ECHO CHARACTER?
CALL TTWAKE ;DETERMINE IF CHARACTER IS IN WAKE-UP CLASS
IFNSK.
CALL TTFWAK ;YES, FORCE WAKEUP
AOS TTWAKN ;COUNT FOR STATISTICS
JRST TTCH1X ;DONE
ENDIF.
LOAD FX,TWFRK,(2) ;GET WAITING FORK IF ANY
CAIN FX,-1 ;IS THERE ONE?
JRST TTCH1X ;NO, JUST RETURN
JE TTFWK,(2),TTCH1X ;YES. IS THE WAKEUP BIT SET?
ANDI FX,7777 ;YES, FLUSH FLAGS
CALL TTUBLK ;MAKE THE FORK RUN TO EMPTY BUFFER
TTCH1X: RETSKP
;TTCHI..
;HERE WHEN RECEIVED TERMINAL INTERRUPT CHARACTER.
;CHECK WHETHER DEFERRED OR IMMEDIATE, INITIATE INTERRUPT IF NECESSARY.
; T1/ ORIGINAL CHARACTER, 7 BITS
; T2/ADDRESS OF DYNAMIC DATA
; T3/THE CODE
; Q1/ BIT FOR CONTROL CODE FOR THIS CHARACTER
TTCH11::TDNN Q1,TTDPSI(2) ;DEFERRED CHARACTER?
JRST TCHI1 ;NO
LDB 4,TTIIN(2) ;GET LAST INPUT CHAR
CAMN T4,TTCHIC ;LAST CHAR SAME AS THIS ONE?
JRST TTCHI5 ;YES, MAKE IMMEDIATE
;HANDLE DEFERRED INTERRUPT
PUSH P,1
CALL TTFWAK ;FORCE WAKEUP SO PGM CAN SEE INT
POP P,1
LOAD 3,TIMAX,(2) ;MUST PUT DEFERRED CHAR IN BUFFER
ADDI 3,1 ;1 RESERVED FOR INT CHAR
CAMG 3,TTICT(2) ;IS ROOM?
JRST [ DPB 1,TTIIN(2) ;NO, SMASH CHAR ON TOP OF LAST ONE
JRST TCHIX] ;RETURN
JRST TTCHI9 ;YES. PUT IN BUFFER W NO ECHOS
;DEFERRED CHARACTER TWICE IN A ROW
TTCHI5: PUSH P,3 ;SAVE CODE
CALL TTCIBF ;CLEAR INPUT BUFFER ON DOUBLE INT
POP P,3 ;RESTORE CODE
TCHI1: CALL TTPSI2 ;GO ISSUE THE INTERRUPT
TCHIX: RETSKP
;TTPSI2 - ISSUE INTERRUPT TO PROCESS THAT HAS ENABLED FOR IT
;VIA ATI
;ACCEPTS:
; T2/ADDRESS OF DYNAMIC DATA
; T3/CODE
; CALL TTPSI2
;RETURNS +1: ALWAYS
;NOTE: TTPSRQ CLOBBERS T2
TTPSI2::CALL TTCLPS ;CLEAR PAGE COUNTER
DYNST ;T2/ INTERNAL LINE NUMBER
CALL TTPSRQ ;REQUEST INTERRUPT FROM PSI SYSTEM
AOS TTINTS ;COUNT INTERRUPTS
RET ;AND DONE
;INPUT BUFFER GETTING FULL. SEND BELL AND LOSE CHARACTER
TTCH12: LOAD T3,TLTYP,(T2) ;CHECK LINE TYPE
CAIN T3,TT.PTY ;PTY?
RET ;YES
MOVEI T1,"G"-100 ;NO, ECHO BELL
CALLRET SCDTCO
;DO INPUT INTERRUPT IF ENABLED
TTCH22: LOAD T4,TTPSFK,(T2) ;CHECK FOR FORK
CAIN T4,-1
JRST TTCH23 ;IGNORE IF NOT SET
LOAD T4,TTIPSI,(T2) ;CHECK FOR NON CONTRL TERM PSI
CAIL T4,^D36 ;CHECKLEGAL
JRST TTCH23 ;NO TRY FOR CONTROL TERMINAL
SAVET ;SAVE TEMPS
MOVE T1,T4 ;GET PSI
LOAD T2,TTPSFK,(T2) ;GET FORK
CALLRET PSIRQ ;DO REQUEST
TTCH23: MOVX 4,1B<.TICTI>
TDNN 4,TTPSI(2) ;YES, SEE IF INPUT INTERRUPT WANTED
RET ;NO
MOVX 3,.TICTI ;YES, REQUEST IT
SAVET ;SAVE ACS
DYNST ;T2/ INTERNAL LINE NUMBER
CALLRET TTPSRQ ;REQUEST INTERRUPT
;NOTE: DOESN'T SET OR TEST TCOERR. IGNORES FAILURE TO SEND BELL
;TTCHI..
;RECEIVED CHARACTER ON LINE THAT IS NOT ASSIGNED A FULL-LENGTH
;DYNAMIC BLOCK.
; T1/ CHARACTER
; T2/-1 IF LINE IS BECOMING ASSIGNED
; OR
; 0 IF NOT AT ALL ASSIGNED
; OR
; POSITIVE ADDRESS OF SHORT OR TTEMES BLOCK
TTC7N: ANDI T1,177
CAIN T1,.CHNUL ;FLUSH NULLS
JRST TTCHN1 ;AND CHECK FOR NOISY LINE
MOVE T4,TTCHSV ;GET LINE NUMBER
JN TTIGI,(T4),TTCHN1 ;RETURN IF IGNORING CHARACTERS ON THIS LINE
CAIE T1,.CHCRT ;CR OR LF?
CAIN T1,.CHLFD
JRST TTCH71 ;YES, TRY TO CREATE JOB
CAIN T1,.CHCNC ;CONTROL-C?
JRST TTCH71 ;YES.
JUMPL T2,R ;IF BECOMING ACTIVE, IGNORE
JUMPE T2,TTCH73 ;IF INACTIVE, SEND BELL
JE TTPRM,(T2),TTCH73 ;IF TEMPORARILY ACTIVE AND NOT PERMANENT, SEND BELL
JN TTBAC,(T2),R ;IF PERMANENT AND BECOMING ACTIVE, IGNORE
TTCH73: HRROI T1,[BYTE(7) .CHBEL] ;SEND A BELL
MOVE T2,TTCHSV ;T2/ INTERNAL LINE NUMBER
CALL TTEMES ;GO SEND A BELL AND LOSE CHARACTER
TTCHN1: MOVE T2,TTCHSV ;T2/ INTERNAL LINE NUMBER
TDCALL S,<<FE,TTCHNL>> ;NOISY LINE CHECK
RET
;A CONTROL/C WAS RECEIVED OR CARRIER CAME ON FOR A REMOTE LINE
;IF LINE IS TOTALLY INACTIVE, GO CREATE A JOB ON IT
;IF LINE IS BECOMING ACTIVE, IGNORE THE CHARACTER
;IF LINE HAS SHORT OR MESSAGE BLOCK, IGNORE THE CHARACTER
TTCH71: JUMPE T2,TTCH75 ;ACCEPT IF NOT AT ALL ACTIVE
JUMPL T2,R ;IGNORE IF BECOMING ACTIVE
JE TTPRM,(T2),R ;IF NOT PERMANENT, ASSUME BLOCK WILL GO AWAY
JN TTBAC,(T2),R ;PERMANENT. IGNORE IF BECOMING ACTIVE
;LINE HAS NO DYMAMIC DATA OR IT HAS A PERMANENT BLOCK AND 1) HAS NO
;CONTROLLING JOB AND 2) IS NOT BECOMING ACTIVE. CREATE A JOB ON IT IF
;LOGINS ARE ALLOWED
TTCH75: MOVE T1,FACTSW ;SEE WHAT LOGINS ARE ALLOWED
MOVE T2,TTCHSV ;RESTORE LINE NUMBER
TTC7SJ: CAMN 2,CTYLNO ;CTY?
JRST [ TXNE T1,SF%CTY ;YES, CTY LOGIN ALLOWED?
JRST TTC7SK ;YES, GO LOGIN
HRROI 1,[ASCIZ/
?LOGGING IN ON THE CTY IS CURRENTLY DISALLOWED.
/]
CALLRET TTEMSS] ;NO LOGIN ALLOWED ON CTY
TDCALL S,<<FE,RSKP>,<PT,TTC7S2>,<TV,TTC7SN>,<MC,TTC7MC>,<CH,TTC7MC>,<LH,TTC7LT>>;
JRST [ JUMPL T1,TTC7SK ;IF NEG, GO START A JOB
RET] ;ELSE FAIL
;LINE IS ON THE FRONT END OR THE DC10. SEE IF LINE IS LOCAL OR REMOTE
TTC7S1: JN TTFEM,(T2),TTCHS3 ;IF REMOTE, GO CHECK REMOTE LOGINS
TXNE T1,SF%LCL ;LOCAL LOGINS ALLOWED?
JRST TTC7SK ;YES. GO CREATE JOB
HRROI 1,[ASCIZ/
?LOGGING IN ON LOCAL TERMINALS IS CURRENTLY DISALLOWED.
/]
CALLRET TTEMSS ;LOCAL LOGINS NOT ALLOWED. SEND MESSAGE
;LINE IS DECNET NVT
TTC7MC: TXNE T1,SF%MCB ;DECNET LOGINS ALLOWED?
JRST RTRUE ;YES, GO CREATE JOB
HRROI T1,[ASCIZ/
?LOGGING IN ON DECNET TERMINALS IS CURRENTLY DISALLOWED.
/]
CALL TTEMSS ;PRINT MESSAGE
JRST RFALSE ;DISALLOW LOGIN
;LINE IS REMOTE
TTCHS3: TXNE 1,SF%RMT ;...
JRST TTC7SK ;YES. GO CREATE JOB
SETONE TTFSP,(T2)
HRROI 1,[ASCIZ/
?LOGGING IN ON DATASETS IS CURRENTLY DISALLOWED.
/]
CALLRET TTEMSS ;REMOTE LOGINS NOT ALLOWED, SEND MESSAGE
;LAT terminals
TTC7LT: TXNE 1,SF%LAT ;[7328]Logins allowed?
JRST RTRUE ;YES, GO CREATE JOB
HRROI T1,[ASCIZ/
?LOGGING IN ON LAT TERMINALS IS CURRENTLY DISALLOWED.
/]
CALL TTEMSS ;PRINT MESSAGE
JRST RFALSE ;DISALLOW LOGIN
;LOGINS ARE ALLOWED.
TTC7SK: MOVEI 1,JOBSRT ;REQUEST SCHEDULER- START JOB
HRLI 1,0(2) ;ON SPECIFIED TTY LINE
SKIPLE T3,TTACTL(T2)
JRST [ JE TTPRM,(T3),.+1
SETONE TTBAC,(T3)
JRST TTC7S3]
SETOM TTACTL(T2) ;INDICATE LINE BECOMING ACTIVE
TTC7S3: CALL SCDRQ7
RETSKP
ENDSV. ;END STKVAR
;Handle the two character escape sequence being enabled
;CALL TTTWES with
; T1/ character
; T2/ address of dynamic data
;Returns +1 if character doesn't go into line buffer
;Returns +2 if character goes into line buffer with:
; T1/ character
; T2/ address of dynamic data
;Uses T3 & T4
TTTWES: MOVE T3,T1 ;Make it
ANDI T3,177 ; ASCII
OPSTR <SKIPE>,TTFLA,(T2) ;Seen first character ?
IFSKP.
OPSTR <CAME T3,>,TTCH1,(T2) ;No. Is this the first character ?
RETSKP ;No. Use the character.
SETONE TTFLA,(T2) ;Yes. Flag it
RET ; and drop this character
ENDIF.
SETZRO TTFLA,(T2) ;We saw the first character last time.
LOAD T4,TTETP,(T2) ;Get the interrupt type
OPSTR <CAMN T3,>,TTCH2,(T2) ;Is this the second character ?
CALLRET @TTESC(T4) ;(T2/T2) Yes. Give "interrupt", drop character
LOAD T4,TTCH1,(T2) ;Is this
CAMN T3,T4 ; the first character again ?
RETSKP ;Yes. Just continue. (This is the quote)
;Here when must call TTCHI recursively.
STKVAR <CHAR,DYNAM> ;No. Save
MOVEM T1,CHAR ; this character.
MOVEM T2,DYNAM ;Save TTY block address
MOVE T1,T4 ;Get the first character of the sequence
MOVEM T1,TTCHIC ; put it here, too.
MOVX T3,1B<.TITCE> ;Clear two character flag (to avoid
ANDCAM T3,TTPSI(T2) ; infinite loop)
CALL TTCHID ;(T1,T2) Pass the first character
NOP
MOVE T2,DYNAM ;Get TTY block address
MOVX T3,1B<.TITCE> ;Set the two character
IORM T3,TTPSI(T2) ; flag
MOVE T1,CHAR ;Get the character we were working on
MOVEM T1,TTCHIC ; put it here, too.
RETSKP ; and use it
ENDSV.
TTTWE1: SAVEAC <T2,Q1,FX>
STKVAR <TTCHSV,TTCHFL> ;MUST COME AFTER SAVELN
JRST TTCHD2 ;(T1,T2/T1,T2) and put it in the line buffer.
ENDSV. ;End STKVAR
; TTWAKE - DETERMINE IF CHARACTER IS IN WAKE-UP CLASS
;ACCEPTS:
; T1/ 7-BIT ASCII CHARATER
; T2/ ADDRESS OF DYNAMIC DATA
;RETUNS: +1, CHARACTER BELONGS TO A WAKE-UP CLASS
; +2, CHARACTER NOT IN ANY WAKE-UP CLASS
TTWAKE: LOAD T3,TTFCNT,(T2) ;DECREMENT FIELD WIDTH COUNT
JUMPLE T3,TTMASK ;JUMP IF FIELD WIDTH DISABLED (=0)
SOS T3 ;ENABLED - DECREMENT THE COUNT
STOR T3,TTFCNT,(T2) ;SAVE NEW VALUE
SKIPN T3 ;SKIP IF COUNT NOT EXHAUSTED
RET ;COUNT EXHAUSTED - WAKE PROCESS
;HERE TO CHECK WAKE-UP MASK (FIELD WIDTH DISABLED OR NOT EXHAUSTED)
TTMASK: MOVE T3,T1 ;MOVE THE ASCII CHARACTER
IDIVI T3,^D32 ;COMPUTES WHICH WORD MASK BIT IS IN
MOVE T4,BITS(T4) ;GET THE BIT MASK FOR TESTING
ADD T3,T2 ;BUMP INTO PROPER WORD OF MASK
TDNE T4,TTCHR1(T3) ;SKIP IF NO WAKE-UP ON THIS CHARACTER
RET ;PROCESS SHOULD BE AWAKENED
CAIE T1,.CHLFD ;IS THIS A LF ON A PTY?
RETSKP ;NO, NO WAKEUP
LOAD T3,TLTYP,(T2)
CAIN T3,TT.PTY ;PTY?
RET ;YES, WAKEUP
RETSKP ;PROCESS SHOULD NOT BE AWAKENED
SUBTTL TTEMES (Send Short Message)
;TTEMES - SEND SHORT MESSAGE FROM SCHEDULER
;ACCEPTS:
; T1/ BYTE POINTER TO STRING TO BE OUTPUT
; T2/ LINE NUMBER
; CALL TTEMES
;RETURNS +1: ALWAYS
;CALLED AT SCHEDULER LEVEL TO SEND A SHORT MESSAGE TO A LINE
;IF LINE IS ACTIVE, APPENDS CHARACTERS TO OUTPUT BUFFER. IF NOT
;ACTIVE, CREATES A MESSAGE-LENGTH DYNAMIC BLOCK FOR THE LINE
;TTEMSS - ENTRY POINT TO CLEAR OUTPUT BUFFER BEFORE OUTPUTTING
TTEMSS: PUSH P,A ;SAVE STRING POINTER
CALL TTCOB1 ;CLEAR CURRENT GARABGE OUT
POP P,A ;AND GO SEND THE MESSAGE
;TTEMES - NORMAL ENTRY POINT
TTEMES::EA.ENT
SAVELN ;PRESERVE LINE NUMBER
STKVAR <TTEMBP,TTEMAC,TTEMLN>
MOVEM T1,TTEMBP ;SAVE BYTE POINTER TO STRING
MOVEM T2,TTEMLN ;SAVE LINE NUMBER
MOVEM Q1,TTEMAC ;SAVE WORK REGISTER
CALL STADYN ;GET POINTER TO DYNAMIC DATA
SKIPA ;NOT FULLY ACTIVE
JRST TTEME2 ;FULLY ACTIVE. USE REGULAR BUFFERS
JUMPL T2,TTEME3 ;IF BECOMING ACTIVE, CAN'T SEND MESSAGE
JUMPE T2,TTEME1 ;IF INACTIVE, GO GET A BLOCK
JN TTSHT,(T2),TTEME3 ;IF SHORT BLOCK, CAN'T SEND MESSAGE
JRST TTEME2 ;HAS MESSAGE BLOCK. APPEND STRING
TTEME1: MOVE T2,TTEMLN ;T2/LINE NUMBER
CALL ASGMSG ;GET A BLOCK
JRST TTEME3 ;COULDN'T GET ONE
MOVE T2,T1 ;GET ADDRESS OF DYNAMIC DATA
;T2/ ADDRESS OF DYNAMIC DATA FOR FULL-LENGTH OR MESSAGE BLOCK
TTEME2:
MOVE T1,TTEMBP ;RESTORE BYTE POINTER
TLC 1,-1
TLCN 1,-1 ;LH = 777777 ?
HRLI 1,440700 ;YES, MAKE BYTE PTR
MOVEM T1,TTEMBP ;SAVE BYTE POINTER
TTEME4: ILDB 1,TTEMBP ;GET CHARACTER
JUMPE 1,TTEME3 ;NULL TERMINATES.
MOVEI Q1,0(1) ;SAVE THE BYTE
CALL SCDTCO ;OUTPUT IT
CAIE Q1,.CHCRT ;A CARRIAGE RETURN?
CAIN Q1,.CHLFD ;OR A LF?
SKIPA ;GO FILL
JRST TTEME4 ;NO. GET NEXT CHARACTER
MOVEI Q1,3 ;NUMBER OF FILLS TO DO
TTEME5: MOVEI A,TTFILL ;THE FILL CHARACTER
CALL SCDTCO ;OUTPUT IT
SOJGE Q1,TTEME5 ;DO ALL FILLS
JRST TTEME4 ;GO DO NEXT BYTE
TTEME3: MOVE T1,TTEMBP ;RESTORE BYTE POINTER
MOVE Q1,TTEMAC ;RESTORE WORK REGISTER
CALLRET TTYQOC ;GET OUTPUT STARTED
ENDSV. ;END STKVAR
SUBTTL BIGSTO (Store Char In TTBBUF)
;BIGSTO - ROUTINE TO STORE DATA IN TTBBUF
;DATA CONSISTS OF STATUS BITS OR DLSRCF+CHARACTER IN 8 BITS
;CALLED AT INTERRUPT LEVEL OR WITH TELETYPE INTERRUPTS DISABLED
;SOMETIMES CALLED IN SCHEDULER CONTEXT
;ACCEPTS:
; T1/ (INTERNAL LINE NUMBER,,DATA)
; T2/ INTERNAL LINE NUMBER (MUST BE PHYSICAL LINE)
;RETURNS +1: ALWAYS
BIGSTO::MOVEI 3,TTBSIZ ;GET SIZE OF TTBBUF
CAMLE 3,TTBIGC ;HAS TTBBUF OVERFLOWED?
IFSKP.
BUG.(CHK,TTYBBO,TTYSRV,HARD,<TTYSRV - Big buffer overflow>,,<
Cause: The buffer for incoming TTY characters was full. (The character
was discarded and the line XOFFed.)
>,,<DB%NND>) ;[7.1210]
RET
ENDIF.
TDCALL S,<<FE,BIGST2>>
RET ;FLUSH CHAR
AOS 3,TTBIGI ;NO. POINT TO NEXT WORD IN TTBBUF
CAIN 3,TTBSIZ ;AT END OF TTBBUF?
SETZB 3,TTBIGI ;YES. WRAPAROUND
MOVEM 1,TTBBUF(3) ;STORE CURRENT DATA
AOS TTBIGC ;COUNT CONTENTS
RET
;INPUT DONE AND CHARACTER PRESENT (CALLED FROM INTERRUPT ROUTINES)
; T1/ CHARACTER
; T2/ LINE NUMBER
; CALL TTIDON
; RETURN +1 ALWAYS
TTIDON::CAIE T1,PGMOFC+1B28 ;PARITY AND XOFF
CAIN T1,PGMOFC ;CHECK FOR XOFF
CALL TTYSTC ;YES CHECK ON WHAT TO DO
TTICNT::TRO T1,DLSRCF ;INDICATE RECEIVED CHARACTER
HRL T1,T2 ;COMBINE LINE NUMBER WITH CHAR
CALLRET BIGSTO ;PUT IN BUG BUFFER
TTYSTC: SAVEAC <T1,T2>
CALL STADYN ;GET DYN ADDRESS
RET ;INACTIVE
JE TT%PGM,TTFLGS(T2),R ;IF NO XOFF, GO AWAY
CALLRET TTXOFC ;DO XOFF ON COMMAND
SUBTTL TTSNDO (Non-Interrupt Character Send)
;TTSND0 - SEND ROUTINE CALLABLE FROM NON-PI CONTEXT
;ACCEPTS:
; T2/ INTERNAL LINE NUMBER
; CALL TTSN10
;RETURNS +1: ALWAYS
;USE THIS ENTRY POINT IF ONLY LINE NUMBER IS AVAILABLE
TTSN10::NOSKD1
CALL STADYN ;POINT TO DYNAMIC DATA
JRST [ JUMPG T2,.+1 ;IF SEND-ALL OR MESSAGE,PROCEED
OKSKD1 ;NOT ACTIVE
RET]
JRST TTSN11
;TTSND0 - MAIN ENTRY POINT
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTSND0
; RETURNS +1: ALWAYS
;STARTS OUTPUT TO THE SPECIFIED LINE
TTSND0: NOSKD1
TTSN11: CALLRET STRTOU ;QUEUE START - INCLUDES OKSKD1
;STRTOU - START OUTPUT TO A LINE
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC BLOCK
; T3/ COUNT OF CHARACTERS IN OUTPUT BUFFER
; CALL STRTOU
; MUST BE NOSKD1!
;RETURNS +1: ALWAYS OKSKD1
STRTOU: JN TTOTP,(T2),STRT11 ;IF ACTIVE, NO NEED TO START IT
TDCALL D,<<PT,STRTO2>,<MC,MCSTRO>,<TV,TVTCSO>,<LH,LTSTRO>,<CH,CTHSTO>>
TRNA ;NORMAL START
JRST STRT11 ;NOTHING ELSE TO DO
SAVELN
DYNST ;GET LINE NUMBER
IDIVI T2,^D36 ;COMPUTE BIT POSITION IN QUEUE
MOVE T3,BITS(T3)
IORM T3,TTSOQ(T2) ;REQUEST START NEXT BIGBUF CYCLE
STRT11: CONSO PI,77000 ;SKIP OKSKED IF NOT AT PI LEVEL 7
OKSKD1 ;ALLOW SHCEDULING NOW
RET
;ROUTINE TO START OUTPUT ON QUEUED LINES
;CALLED ONLY ON SCHED SHORT CYCLE AT TTCH7X
TTYQOC: SAVEAC <Q1,Q2>
MOVSI Q1,-NTSQWD ;SETUP NUMBER OF WORDS TO CHECK
TTYQO5: SKIPE T1,TTSOQ(Q1) ;ANY QUEUED LINES IN THIS WORD?
TTYQO4: JFFO T1,TTYQO2 ;YES, FIND ONE
AOBJN Q1,TTYQO5 ;DO ALL WORDS
RET
TTYQO2: MOVE Q2,BITS(T2) ;CLEAR REQUEST THIS LINE
ANDCAM Q2,TTSOQ(Q1) ;CLEAR REQUEST BIT
HRRZ T3,Q1 ;COMPUTE LINE NUMBER
IMULI T3,^D36
ADD T2,T3
CALL STADY ;GET DATA ADDRESS
IFSKP. <
PUSH P,T2 ;SAVE T2 ALSO
CALL STRTTO ;START PHYSICAL DEVICE
POP P,T2> ;RESTORE T2
MOVN T1,Q2
ANDCA T1,TTSOQ(Q1) ;LOOK AT REST OF WORD ONLY
JRST TTYQO4 ;CONTINUE
;START PHYSICAL TTY OUTPUT DEVICE
; T2/ DYNAMIC PTR
; RETURN +1 ALWAYS
STRTTO: SAVEAC <Q1,Q2> ;SOME CRETIN KNOWN TO BE CLOBBERING HEREIN
TDCALL D,<<FE,FESTRO>,<MC,MCSTRO>,<PT,PTYCTM>,<CH,CTHSTO>,<LH,LTSTRO>>;
RET
RET
;CONSTANTS
WRPMSK::TTSIZ-1 ;MASK FOR WRAPAROUND OF CHAR POINTER
SUBTTL TTSND (Send Character To Line)
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL TTSND
; RETURN +1: NO OUTPUT AVAILABLE
; +2: T1/ CHARACTER FOR OUTPUT
;CALLED AT INTERRUPT LEVEL
;OR IN SCHEDULER CONTEXT WITH TELETYPE INTERRUPTS DISABLED
;OR IN PROCESS CONTEXT WITH TELETYPE INTERRUPTS DISABLED
;SEND CHARACTER TO TTY LINE,
;FROM OUTPUT BUFFER IF NOT EMPTY; OTHERWISE
;CLEAR OUTPUT-ACTIVE FLAG
TTSND::
TTSND6: JN <TTSFG,TTRXF>,(T2),[
SETZRO TTOTP,(T2) ;IF CTRL/S TYPED, CLEAR OUTPUT ACTIVE
RET]
TMNN TTHPO,(T2) ;HP MESSAGE QUEUED?
IFSKP.
ILDB T1,TTSAL2(T2) ;YES, GET NEXT CHAR
CAIE T1,.CHDEL ;END OF STRING?
RETSKP ;NO, RETURN CHARACTER
SETZRO TTHPO,(T2) ;RUBOUT MARKS END OF STRING, CLEAR
ENDIF.
TMNN TTSAL,(T2) ;SENDALL?
IFSKP.
OPSTR <SKIPG>,TSALC,(T2) ;ANY MORE CHARACTERS TO SEND?
IFSKP.
ILDB T1,TTSAL2(T2) ;GET NEXT CHARACTER
DECR TSALC,(T2) ;DECREMENT COUNT OF REMAINING CHARACTERS
TRNE 1,200 ;THIS CHARACTER HAVE PARITY?
CALL SPARTY ;SET PARITY BIT APPROPRIATELY FOR LINE TYPE
RETSKP ;RETURN THE CHAR
ENDIF.
CALL CLRSAL ;CLEAR SENDALL FOR LINE
ENDIF.
CALL GTOCHR ;GET CHAR FROM OUTBUF
RET ;EMPTY
CAIE T1,TTOBIN ;Got a character - was it binary mode marker?
CAIN T1,TTOASC ;or ascii mode marker?
RETSKP ;Yes. put in output buffer (CTHSRV will handle)
TRNE T1,TTOESC ;No. A FUNCTION ESCAPE CHARACTER?
JRST TTSND3 ;HANDLE ESCAPE SPECIAL
JN TTFLO,(T2),TTSND6 ;IF FLUSHING OUTPUT, GO GET ANOTHER CHAR
RETSKP
;GET CHARACTER FROM TTY OUT BFR
; T2/ DYNAMIC PTR
; RETURN +1: BUFFER EMPTY
; +2: T1/ CHAR (9 BITS)
GTOCHR: SOSGE TTOCT(2) ;ARE THERE CHARACTERS IN OUTPUT BUFFER?
JRST [ SETZRO TTOTP,(T2) ;NO CHARACTERS. CLEAR OUTPUT-ACTIVE
SETZM TTOCT(T2) ;ZERO COUNTER
CALLRET CLENUP] ; AND GO RELEASE BUFFERS
CALL CHKWRN ;SEE IF FORK WAKEUP NEEDED
SKIPN 3,TTOOUT(2) ;GET BUFFER POINTER
BUG.(HLT,TTONOB,TTYSRV,SOFT,<GTOCHR - No buffer but count non-zero>,,<
Cause: At TTSND7 (send a character to a line) the pointer to the
line's data base was 0. This is either a coding error or the resident
table containing the pointers was clobbered.
Action: Look at the dump. The stack should indicate which routine
made the call without a pointer.
>)
TDNN 3,WRPMSK ;AT END OF BUFFER?
JRST [ LDB 4,[POINT 6,3,5] ;LOOK AT P,S FIELD OF BYTE POINTER
CAIE 4,73 ;POINTING TO LAST BYTE?
JRST .+1 ;NO.
HRRZ T4,T3 ;YES. GET ADDRESS OF CURRENT WORD
HRR T3,1-TTSIZ(T4) ;POINT TO NEXT BUFFER IN CHAIN
MOVEM 3,TTOOUT(2) ;SAVE POINTER
JRST .+1]
ILDB T1,TTOOUT(2) ;GET NEXT CHARACTER
RETSKP
;BACKUP OUTPUT PTR BY ONE (E.G. BECAUSE DTE QUEUE FULL)
; T2/ DYN PTR
BAKTTO::MOVNI T3,1
TMNN <TTSAL>,(T2) ;SENDALL?
IFSKP. <INCR TSALC,(T2)> ;YES, ADJUST COUNT
TMNN <TTHPO,TTSAL>,(T2) ;HP OR SENDALL STRING?
IFSKP.
ADJBP T3,TTSAL2(T2) ;YES, BACKUP BYTE PTR
MOVEM T3,TTSAL2(T2)
RET
ENDIF.
ADJBP T3,TTOOUT(T2)
MOVEM T3,TTOOUT(T2) ;RESTORE IT
AOS TTOCT(T2) ;RESET COUNT
RET
;FUNCTION ESCAPE CHARACTER ENCOUNTERED IN OUTPUT STREAM
TTSND3: CAIE T1,TTOMRK ;OUTPUT MARKER?
IFSKP.
JE TTFLO,(T2),TTSND6 ;IGNORE IF NOT FLUSHING OUTPUT
MOVE T1,[670000,,[BYTE (9)"]",.CHCRT,.CHLFD,0,0,0,0,0,.CHDEL]]
MOVEM T1,TTSAL2(T2) ;SEND INDICATION (WITH FILLS ON CR AND LF)
SETONE TTHPO,(T2) ;NOTE HP OUTPUT QUEUED
SETZRO TTFLO,(T2) ;STOP FLUSHING OUTPUT
JRST TTSND6 ;TRY FOR MORE OUTPUT
ENDIF.
JN TTFLO,(T2),TTSND6 ;FLUSH OTHER CASES IF FLUSHING OUTPUT
CAIE T1,TTOPFC ;PAGE FULL FUNCTION?
IFSKP. <
SETONE TTSFG,(T2) ;YES. SIMULATE CTRL/S
JRST TTSND6> ; AND GO CLEAR OUTPUT ACTIVE
PUSH P,T2 ;SAVE ADDRESS OF DYNAMIC DATA
DYNST ;GET LINE NUMBER TO PRINT
BUG.(CHK,TTILEC,TTYSRV,HARD,<TTSND - Unrecognized escape code>,<<2,TDB>,<3,TTY>>,<
Cause: An unrecognized function escape character was encountered in a TTY
output stream.
Data: TDB - Terminal dynamic data block address
TTY - TTY line number
>)
POP P,T2 ;RESTORE ADDRESS OF DYNAMIC DATA
JRST TTSND6
;CHKWRN - CHECK FOR WAKEUP NEEDED FROM OUTPUT BLOCK
;CALLED WHEN CHARACTERS TAKEN FROM OUTPUT BUFFER AND TTOCT REDUCED
; T2/ DYNAMIC DATA PTR
CHKWRN::JN TTNUS,(T2),R ;DO NOTHING IF NET USEER
JE TTBKO,(T2),R ;RETURN IMMED IF NO FORK WAITING ON LINE
LOAD T3,TOWRN,(T2) ;GET WARNING LEVEL COUNT
CAMLE T3,TTOCT(T2) ;CAN WAKE?
CALL CHKTOT ;YES, POKE SCHED
RET
;CHKBKO - CHECK FOR WAKEUP NEEDED ON OUTPUT EVENT
; T2/ DYNAMIC DATA PTR
CHKBKO: JE TTBKO,(T2),R ;RETURN IMMED IF NO FORK WAITING ON LINE
CALLRET CHKTOT ;REQUEST CHECK OF OUTPUT-BLOCKED FORKS
;CLENUP - GET RID OF OUTPUT BUFFERS
;ACCEPTS:
; T2/ ADDRESS OF DYNAMIC DATA
; CALL CLENUP
;RETURNS +1: ALWAYS
;OUTPUT BUFFERS ARE EMPTY. RELEASE THEM. IF INTERRUPT
;ON EMPTY OUTPUT BUFFER IS REQUESTED, PUT A WORD IN TTBBUF WITH BIT
;TTOIRQ SET. TTCH7 WILL FIND IT WHEN IT IS RUN AGAIN.
CLENUP: CALL TTRLOB ;RELEASE OUTPUT BUFFERS, SINCE EMPTY
MOVX 3,1B<.TICTO>
TMNE <TTMES,TTSHT>,(T2) ;A NORMAL BLOCK?
RET
LOAD T1,TTPSFK,(T2) ;GET FORK #
CAIE T1,-1 ;SKIP IF NOT SET
JRST CLENU1 ;SET, NON-CONTROLLING TERMINAL PSI REQUESTED
CLENU2: TDNN 3,TTPSI(2) ;OUTPUT INTERRUPT WANTED?
RET ;NO. RETURN
MOVEI T1,TTOIRQ ;YES, PUT REQUEST IN BIG BUF
JRST CLENU3
CLENU1: LOAD T1,TTOPSI,(T2) ;GET PSI CHANNEL NUMBER
CAIL T1,^D36 ;SETUP?
JRST CLENU2 ;NO TRY OLD WAY
MOVEI T1,TTPIRQ ;SET UP TO DO INTERRUPT
CLENU3: SAVELN
DYNST ;GET LINE NUMBER
HRL T1,T2
CALLRET BIGSTO ;REQUEST INTERRUPT
;ROUTINES CALLED FROM INTERRUPT ROUTINES
;POST OUTPUT DONE.
; 2/ LINE NUMBER
TTODON::CALL STADY ;GET ADDRESS OF DYNAMIC DATA
RET ;RETURN IF BECOMING ACTIVE OR INACTIVE
CALLRET STRTTO ;START OUTPUT AGAIN
;TTDALL - ROUTINE CALLED FROM POWER RESTART CODE TO DETACH ALL JOBS
RESCD ;MUST BE RESIDENT
TTDALL::SETZ C, ;START WITH FIRST LINE TYPE
JRST TTDAL5 ;GO CHECK THEM
;GO TO NEXT LINE. IF THE LINE TYPE CHANGES, DON'T PROCEED WITH THE NEW
;LINE. INSTEAD, GO TO THE NEXT LINE TYPE AFTER THE ONE JUST PROCESSED.
;THIS CODE ASSUMES THAT ALL LINES OF A GIVEN TYPE ARE NUMBERED CONSECUTIVELY.
TTDAL3: LOAD C,TTSTY,(B) ;GET CURRENT TYPE
ADDI B,1 ;GO TO NEXT LINE
CAIL B,NLINES ;BEYOND END OF LINES?
JRST TTDAL7 ;YES. GO TO NEXT LINE TYPE
LOAD A,TTSTY,(B) ;GET TYPE OF NEXT LINE
CAME C,A ;NEW TYPE?
JRST TTDAL7 ;YES. GO INCREMENT THE LINE TYPE
;TRANSFER ACCORDING TO THE VECTOR IN A. CERTAIN TYPES ARE NEVER
;PROCESSED.
TTDAL8: TDCALX C,<<FE,RSKP>,<TV,RSKP>,<CH,RSKP>,<LH,RSKP>> ;SKIP IF DETACH SHOULD BE DONE
JRST TTDAL7 ;DON'T DO IT
;DETACH THE JOB ON THIS LINE IF THERE IS ONE
CAME B,CTYLNO ;IS THIS THE CTY?
CALL TTJBDT ;DETACH THE JOB
JRST TTDAL3 ;GO PROCESS NEXT LINE
;FINISHED THE CURRENT LINE TYPE OR THE CURRENT TYPE IS NOT TO BE PROCESSED
;GO TO THE NEXT TYPE AND SEE IF IT IS TO BE PROCESSED
TTDAL7: AOS C ;GO TO NEXT LINE TYPE
CAIL C,NLTYPS ;BEYOND END OF LEGAL TYPES?
RET ;YES. DONE ALL LINES
TTDAL5: MOVE B,TT1LIN(C) ;GET FIRST LINE OF THIS TYPE
JUMPL B,TTDAL7 ;IF NONE OF THIS TYPE DO NEXT TYPE
JRST TTDAL8 ;GO DETACH IT
;ROUTINES TO ENABLE/DISABLE DATASETS.
;CLOBBERS ALL TEMP REGISTERS:
DTRMEN::TDZA D,D ;GET A ZERO TO DO ENABLE
DTRMDS::MOVEI D,1 ;GET A ONE TO DISABLE
SAVEQ
MOVSI Q1,-NLTYPS ;DO ALL LINE TYPES
TTLIL2: TDCALX Q1,<<FE,FEDABL>>,<RET>
AOBJN Q1,TTLIL2
RET
RESCD
TTBUGH::BUG.(HLT,BADTTY,TTYSRV,SOFT,<Transfer to nonexistent TTY code>,,<
Cause: The transfer vector for a non-existent TTY line type was
referenced.
Action: Look at the dump. The stack should indicate which routine caused
the reference.
>)
RET
SUBTTL PTY Device Dependent Code
;*** PTY SPECIFIC CODE ***
SWAPCD
; STPAR JSYS DEVICE DEPENDENT CODE
STPAR5: TXZ A,TT%PGM ;YES. CAN'T SET PAGE MODE THEN
RET
RESCD
;DEVICE DEPENDENT CODE FOR START OUTPUT LINE
;LINE IS PTY.
STRTO2: MOVE T3,TTOCT(T2) ;GET OUTPUT COUNT
CAIN T3,1 ;BUFFER WAS EMPTY BEFORE THIS CHAR?
JRST [ SETONE TTDD1,(T2) ;NOTE OUTPUT EVENT
JRST .+1]
LDB T1,TTOIN(T2) ;CHECK CHAR BEING OUTPUT
ANDI T1,177
CAIN T1,.CHLFD ;END OF LINE?
CALL CHKPT1 ;MAYBE POKE CONTROLLING JOB
RET
;PTYCTM - CALLED PERIODICALLY BY TTCH7 TO SEE IF OUTPUT START NEEDED
; T2/ DYNAMIC DATA PTR
; RETURN +2 TO PREVENT NORMAL OUTPUT START SEQUENCE
PTYCTM: SKIPG TTOCT(T2) ;YES, ANY OUTPUT HERE?
RETSKP ;NO
CALL CHKPT1 ;DO THE WORK
RETSKP
CHKPT1: CALL CHKBKO ;PERHAPS WAKEUP FORK WAITING FOR OUTPUT
JE TTDD1,(T2),R ;RETURN IF NO OUTPUT EVENT RECENTLY
SETZRO TTDD1,(T2) ;ONCE ONLY
LOAD T1,TINTL,(T2) ;GET LINE NUMBER
CALL TTYPTY ;CONVERT OT PTY NUMBER
CALL PTYFOU ;NOTE PTY OUTPUT EVENT
RET
;CHKPTA - CALLED WHEN FORK IS BLOCKING TO WAIT FOR SOME OUTPUT ACTIVITY
; IF LINE IS PTY, OUTPUT SHOULD BE STARTED IMMEDIATELY
; T2/ DYNAMIC DATA PTR
CHKPTA: SAVET
JRST CHKPT1 ;YES, START IT
;CHECK PTY FOR OUTPUT POSSIBLE
;IF THE PTY HAS BEEN CLOSED, OUTPUT SHOULD NOT BE DONE BECAUSE
;NOTHING WILL EVER EMPTY THE OUTPUT BUFFER
; T2/ DYNAMIC PT
; RETURN +1: NO OUTPUT
; +2: OUTPUT OK
CKPTOU: SAVEAC <T2>
DYNST ;GET LINE NUMBER
CALL PTYSKO ;IS IT OPEN?
RET
RETSKP
;LINE IS A PTY. SEE IF PTY LOGINS ARE ALLOWED
TTC7S2: TXNE T1,SF%PTY ;SEE IF PTY LOGINS ALLOWED
JRST RTRUE ;YES, GO LOGIN IN
HRROI 1,[ASCIZ/
?LOGGING IN OVER PTY'S IS CURRENTLY DISALLOWED.
/]
CALL TTEMSS
JRST RFALSE ;FAIL
;DEVICE DEPENDENT CODE FOR TCI
TCIPTY: CALL CHKPTA ;POKE OUTPUT FIRST
PUSH P,T2 ;SAVE ADDRESS OF DYNAMIC DATA
DYNST ;GET LINE NUMBER
MOVE T1,T2 ;T1/LINE NUMBER
CALL TTYPTY ;CONVERT TO PTY NUMBER IN T1
CALL PTYFIN ;NOTE PTY INPUT EVENT
POP P,T2 ;RESTORE ADDRESS OF DYNAMIC DATA
RET
;PMES - Outputs a message to the CTY
;Accepts AC1/pointer to string
;Returns +1 always.
PMES:: MOVE T2,CTYLNO ;[7193] GET THE CTY LINE NUMBER
CALL TTEMES ;(T1,T2)[7193] OUTPUT THE MESSAGE
RET
SUBTTL End of TTYSRV
TNXEND
END