UsingtheInterlisp-DRS232FacilityFile:Library>RS232.teditCreated:Jan10,1983,byJonLWhiteRevised:2/21/83,8/18/83,3/12/84,and10/31/84RS232communicationspermituseofsynchronousaswellasasynchronousprotocols,throughasmallpieceofhardwareforserial/parallelconversioncalledaUSARToraUART;theformerisnecessarywhensynchronousprotocolsareused.Currently,Lisp'sonlyinterfaceistotheasynchronousprotocol,whichbasicallymeansthatan8-bit"character"maybesent,atanytime,throughtheUSART/UART,andsimilarlyan8-bit"character"maybereceivedatanytime.TherearethreeportsavailableunderInterlisp-DforRS232communications,twoofwhichareonthe1108,andoneonthe1100.Forthe1108,oneRS232portisstandard(dubbedtheTTYPort)andanotherisoptional(theE30option,dubbedtheRS232Cport);forthe1100,thereisanoptionalcircuitboardpluggedintotheparallelport.TheRS232CportisaUSART,terminatinginastandard25-pinconnectoratthebackofthe1108,andanextensioncableisprovidedwhichterminatesina25-pinmaleconnectorwiththestandardRS232signals;theTTYPortisaUART,whichterminatesina25-pinfemaleconnectoratthebackofthe1108andforwhichaspecialadaptorcablemustbebuilt(seebelow);thecircuitboardforthe1100terminatesina25-pinmaleconnectoronashortcable.TherearesomeknowndeficiencieswithrespecttotheRS232protocolsintheTTYPort;seethefootnoteonRS232MODEMHANGUPbelow.Portselectiononthe1108iscontrolledbytheglobalvariableRS232DLionTTYP,whichmayberesetatinitializationtime;currently,thedefaultvalueisT,meaning"usetheTTYPort",butlikelywiththenextrelease,itwillbeNILmeaning"usetheRS232Cport".Ascharactersarriveinattheinterfaceport,theyarestoredinLisp'smemoryinaringbuffer;andtheoutputfunctionswillbuffertheirdatainaringbufferuntilitisfull,oruntilexplicitrequestismadetoforceitout.Theoutputringbufferisone512-bytepage,andtheinputringbufferistwopages.[[Footnote:Twoglobalvariablescontroltheinitialsizesettingsforthesebuffers,soitispossibletotailorthesizetoaspecificapplication.]]However,whenusingtheRS232Cport,theinputbufferwillbesetto4,l8,or16pagesdependingonthelinespeed,soastoprovideatleastseveralsecondsworthofbufferingatfullspeed.[[Footnote:The1100hasnomicrocodesupportforbufferingthecharactersastheycomein,andsimilarlythe1108hasnolow-levelsupportfortheTTYPort;thustherearesomelimitationsusingthesetwoports--primarilythattheuserhastocalloneofthefunctionswhichwillupdatetheinputringbufferatintervalsfrequentenoughtoinsuregettingallthecharacters.]]The"host"name{RS232}isusableasadevice-orientedinterfacetotheRS232ports.Afterthedevicehasbeeninitialized,(GETSTREAM'{RS232})willreturnthisbi-directionalstream(whichisalsocachedintheglobalvariable\RS232SRTREAM).However,thestreaminterfaceisnotrecommendedexceptwhenusingtheRS232Cport[[Footnote:Inmostcases,thegeneralstream-orientedfunctionswillnotworkforthe1100orthe1108'sTTYPortbecausethetimetakenbygeneralI/Ooperationsisunpredictableandoftenquitelarge.However,atveryslowspeeds,thentheRS232BACKGROUNDprocessisturnedonforinput,theremaybesomeusabilityhere.]]InitializationBeforeusingtheRS232facility,itisnecessarytoinstallcertainparametersinUARTorUSARTbehindthechannel,andthefunctionRS232INITisprovidedforthatpurpose.(RS232INITBaudRateBitsPerSerialCharParityNoOfStopBitsModemControlPort)Theargumentscorrespondtothedesiredbaudrate(150,300,600,...9600aresupportedonallchannels,and19200issupportedontheRS232Cchannel),thenumberofbitsperserialcharacter(i.e.,7or8),whetherornottousethe8thbitasaparitybit(andifso,thenthisargumentmustbeeitherODDorEVEN),thenumberof"stop"bits(exceptinunusualcases,1thedefaultvalue,isusedhere),andthesettingofanymodemcontrollines(seedescriptionofRS232MODEMCONTROLbelow).ThePortargumentcurrentlyonlyselectsbetweentheTTYPortandthe(optional)RS232Cportonthe1108;ifanon-NILvalueissupplied,itmustbeeitherthelitatomTTYPortorRS232C;ifNIL,thentheglobalvariableRS232DLionTTYPisconsulted,withnon-NILmeaningtousetheTTYPortandNILmeaningtousetheRS232Cport.ThedefaultvaluesforallargumentsareBaudRate1200BitsPerSerialChar8ParityNILNoOfStopBits1ModemControlNILPortNIL{i.e.,consultsRS232DLionTTYP}CAUTION:thevalueofRS232INITasaglobalvariableisusedbythesedriverfunctionstocontainacopyofthisargumentlist;donotresetitatanytime.OnemayuseOPENSTREAMasanalternativetocallingRS232INITdirectly,butthenonemustthenbundleupalltheparametersintothePARAMETERSargument,wheretheformalparameter Йq?─`ҐНОpЪ Йq?─`ҐНОН ЙОg_pН ТОbhН ═ОbhН ТОaTН ═НLНЬНєН PН ЭН╗НTНН╛НXНН╟Н\ННЄН╪Нl Н#|Н$(Н(0Н(эН.ХОaTН ТО`@Н ═О`@Н ТО_,НЙНЮН%XО_,Н ТО^НЮН░Н@НHНLН"╗Н&╟О^Н ТО]ННЮНЛНЬН&Н(ЄН.юО]Н ТО[ПН ═О[ПН ТОZэН ═ОZэН ТОYхН ═ОYхН ТОXЄНЙНР НН!╨Н$jН&n Н.~Н0┌Н3чН5БН>· НFНFОXЄН ТОW═НTН╛НЄН╪НюН лН#|Н.< Н5═Н:TН;╛Н?ЄНA╦НCНGНIхНIхОW═Н ТОV▄Н╗Н╛НdНю Н"пН)┬Н,8Н0@Н0Л Н8PН=Н@`НGНIНIОV▄Н ТОUxНЬН╗НdНН"$Н(эН,ДН0@Н2DН6L Н>\НAНCНGНIНIОUxН ТОTdНєН╛НН╪ Н лН#|Н*4Н,8Н0@ Н8PН;Н=НCНEНGдНGдОTdН ТОSPН ЭН╗НTОSPН ТОR<Н ═ОR<Н ТОQ(НЙНРН╒Н╙Н╡Н$jН(r Н0┌Н32Н7:НAЗНD╙НFўНJІНJІОQ(Н ТОPНєН╗НXН`ННюНдНtН#|Н$(Н&ьН)┬Н-░Н0@Н4HН7єН9╗Н?ЄНEНGдНGдОPН ТОOНН╟ННН Н#|Н&,Н+▄Н0@Н2ПН7єН\Н@`НA╦НFlНFlОMЛН ТОLь ННН`НlН Н&ьН(эН+▄Н.ХН0ЛН3°Н7єН:TН\НGНJtНJtОH┬Н ТОGtНTНXНННхН лН#|Н)┬Н,8Н.ХН4ТН6ЬНBdНGНGдНGдОGtН ТОF`Н PННН╪НН Н%─Н'└Н*4Н.ХН4ТН?ЄНC╪НFlНHpНHpОF`Н ТОELН ЭН НННх Н&,Н(эН.<Н2DН4HН6LН;╛Н?НA╦НHpНHpОELН ТОD8НєНXНЄНdНюН лН"пН&,Н(0Н*ЮН0@Н3°Н6LН;Н?ЄОD8Н ТОC$Н ═ОC$Н ТОBНЙНН НRНН Н!Н#ЎН*vН.~Н1зН4┼Н9>Н;BН?ЖНD╙НFўНHНHОBН ТО@ЭН 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НCЧНFНI^НI^О$ТН ТО#ЮНЬННЄНdНpН Н"пН(эН/■Н1≤Н7єН:TН=╟НC╪О#ЮН ТО"лН ═НL Н╟Н╪Н$тН)┬Н2DН;Н?О"лН ТО!╦НєН\ НюНдНtН$тН(0Н+▄Н/■Н2ПН6LН7єН8ЭН:TН;Н>\НAНGдНIхНIхО!╦Н ТО єНєН\НННН"пН$тН'└Н,8Н2ПН5═Н:TН\ НEюНIНIО,Н ТОНTНЄН╦НhНН!xН$(Н&ьН,8Н.<Н0ЛН3°Н8PНWAITFORFINISH).(RS232BACKGROUNDON?PERIOD.ms)willinitiateabackgroundlow-levelprocess(yes,aPROCESS)whichwillservicetheUARTatleastonceeveryPERIOD.msmilliseconds(defaultvalue:16ms),and/orforceouttheoutputbufferasoftenaspossible.Thefirstargumentmustbeamong{OFF,INPUT,OUTPUT,BOTH,ON};OFFterminatesthisbackgroundactivity;OUTPUTcausesonlytheoutputbuffertobeforcedout;INPUTcausesonlytheperiodicservicetotheinputbuffer;andeitherONorBOTHcausesbothactivities.TheinputserviceisreallyonlyapplicabletotheportsotherthanRS232C,whichhasanindependentmechanismtoinsurethatcharactersaretransportedinatimelyfashionfromtheUARTtotheringbuffer.Forthe1100,andforthe1108'sTTYPort,aperiodof16millisecondsfortheinputservicetimeshouldgivetheappearanceofasynchronousbuffering,withoutdroppinganycharacters,whenusedatspeedsoflessthanabout600baud.Anon-NILvalueforPERIOD.mswillbecoercedtobeatleast16ms,andnotmorethan1000ms.InputFunctions(RS232PEEKBYTE)returnsthenextcharactersittingintheinputringbuffer,ifany;thehardwareportischeckedtoseeifanyinputcharactersarewaiting,andifsotheyaremovedintotheringbufferfirst.FortheportsotherthanRS232C,callingthisfunctionisagoodwaytoinsurethatcharactersaremoved,inatimelyfashion,fromtheUSART/UARTtotheinputringbuffer.Aswithany"peek"function,thereturnedbyteisnotremovedfromthestream.(RS232READBYTEWAIT?timerUnits)isthebasicinputfunction,whichwillreturneitherNILorafixpbetween0and255inclusive.Bothargumentsareoptional.Ifnocharacterisavailable,RS232READBYTEwillreturnNIL;butifWAIT?isafixp,thenitwillwaituptothatmanytimeunitsbeforereturning(possiblygettinganincomingcharacterinthemeantime);ifWAIT?isanyothernon-NILvalue,theitwillwait(possiblyforever)untilsomebytecomesintobereturned.Thesecondargumentdeterminesthelengthofa"timeunit";defaultismilliseconds,butalternativesareSECONDS,MILLISECONDS,andTICKS(whichistheinternalmachineclockunit,andvariesinvaluebetweenthe1100and1108--seesection14.6oftheInterlispReferenceManual"TimersandDurationFunctions").AswithRS232PEEKBYTE,anycalltothisfunctionwillupdatetheinputringbufferbeforedoinganythingelse.(RS232READWORDWAIT?timerUnits)Iftwobytescanbereadintheallotedtime,theyarecomposedintoa"word";thefirstbytecomprisesthehigh-order8bitsofa16-bitword,andthesecondbytecomprisesthelow-order8bits.(RS232READLINEWAIT?timerUnitsOLDSTRBUFFER)readsasequenceofcharactersuntilanEnd-of-Linecharacterisreceived;allthecharactersexcepttheEOLarereturnedasastring.ThefirstarugmentsareinterpretedexactlyforRS232READBYTE;thatis,iftheexpectedEOLisnotseen"intime",thenNILisreturned.However,ifthethirdargumentissupplied,itmustbeastring,anditsstoragewillbere-usedtoreturnthecharactersaccumulatedsofar,evenifthereisatimeout.Oneothercaveat:upto8charactertimesaredalliedafterreceivingtheEOL,toseeifitisfollowedbyaline-feed,andifso,theline-feedisflushed.(RS232READSTRING#CHARS.LIMIT?STOPCODE?NOBLOCKSFLGWAIT?timerUnitsOLDSTRBUFFER)isthebasic"blockmode"inputfunction;theargumentsarealloptional,andthelastthreeНJtО(Н 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ТО9pНTНН╦Н╪НюНН"пН&, Н.<Н.ХН1≤Н5═Н;Н=НA╦НEНEО9pН ТО8\ НXН\НННН!xН&ьН*ЮН-░Н/■ Н7єН>\Н@`НEНHpНHpО8\Н ТО7H НXН НННtН$(Н)┬Н,ДН/■Н2ПН4ТН7є Н?ЄН@`НCНEюНIхНIхО7HН ТО64НєНTНН╦НдНН"пН$тН&ьН/■Н2DН4ТН8ЭН>\НA╦НFlНIхНIхО64Н ТО5 Нє НННх Н&,Н+▄Н1≤Н4H Н\НC╪НEюНEюО єН ТО░Н\ННхН!xН'└Н0ЛН3°Н7єН\НAНGНGО░Н ТО|НTН\НdННхН лН$тН*4Н,ДН0@Н2ПН6LН8PН;Н@`НC╪НEюНHpНHpО|Н ТОhН╛НdНН!xН$(Н*4Н2ПН3°Н5═Н8Э НCНEюНIНIОhН ТОTНЬНTН`Н╪НpН Н$(Н'└Н,8Н0ЛН4ТН;Н?ОTН ТО@Н ═О@Н ТО,Н ═НL Н`Нh Н!xН"$Н$(Н&ьН*ЮН-░Н/■Н2ПН4ТН7єН=НAНDhНGНGО,Н ТОНН\НЄННдН лН$(Н*ЮН-░ Н4ТН6LН9╗Н;╛Н=НA╦НEюНHpНHpОН ТОНєНXНЄНlНН$тН&,Н*4ОН ТОПН ═ОПН ТОэН ═НL Н`Нh Н лН*4Н.<Н/■Н5═Н7є Н?НCНEНEОэН ТОх НН╪НюН!xН$(Н&ь Н.<Н2ПН5═Н8PН;НAНCНDhНIхНJtНJtОхН ТОЄНєН╛НdН Н"$Н'└Н*4 Н4HН7єН:TН\НDhОdН ТОPН ═ОPН ТО <Н ═НLН╦Н Н&ь Н.ХН2П Н:TНC╪О <Н ТО(НЬН╗Н╟НdНlНtН&,Н(эН/■Н2DН4ТН;╛Н>\НAНDhНHpНHpО(` Йq?─`Ґ 3functionjustasinRS232READLINE.Characterswillbeaccumulateduntiloneofthreeconditionsoccur:1.Thetotalnumberofcharacterstakeninbythiscallisequalto#CHARS.LIMIT?(NILmeansnolimit);or2.AcharacterisreceivedwithcharactercodeequaltoSTOPCODE?(NILmeansnolimitingcharcter);or3.AnintervaloftimegreaterthanthatspecifiedbyWAIT?haspassedwithnobytesavailableattheport.IfNOBLOCKSFLGisnon-null,thenRS232READSTRINGwillconsumealltheCPUcycleswithoutofferingtoyieldtootherprocesses(includingtheMOUSEprocess);thismodeisimportanttovery-time-criticalapplications,butmostparticularlywhenusingtheportsotherthanRS232C.OutputFunctions(RS232WRITEBYTEBYTEFORCEOUT?IGNOREXOFF?)willsendoutone8-bitbyte;ifFORCEOUT?isNIL,thebytewillsimplybestoredintheoutputringbuffer,andwillbenotactuallybe"sent"untilsomeconditionarisestoforceoutthebuffer.Theoutputringbufferwillbeforcedoutifthesecondargumentisnon-NIL,orwheneverthereisanexplicitcalltothefunctionRS232FORCEOUTPUT,orfromtimetotimewhenRS232BACKGROUNDhasspecifiedbackgroundoutputfromthebuffer(seedocumentationabove).EspeciallywiththeRS232Cport,itincursahighoverheadcosttodoaforceoutputoneverycharactersent.(RS232WRITECHARSSTRINGFORCEOUTPUT?)sendsoutallthecharactersinthefirstargument,whichmaybeeitheralitatomorstring.SecondargumentisinterpretedthesameaswithRS232WRITEBYTE.ModemInterfaceFunctions(RS232XON\XOFF?ON?)controlstheprocessingofthein-bandXONandXOFFcharacterssentbythecorrespondent;whenON?isnon-NIL,suchprocessingwillbeenabled;whenON?isNIL,itwillbedisabled.WhentheRS232portisinitialized,thisfeatureisdisabled.[[Footnote:Upuntilthefallof1984,thisactionwasdeterminedbythevalueoftheglobalvariableRS232XON\XOFF?;inordertoensureasmoothtransition,therewilbeaperiodoftimeduringwhichthefunctionalinterfacewillmerelysetthisglobalvariable.Thiscross-overperiodwillextendatleastuntilthenextreleaseofInterlisp-d.Butultimately,itwillhavetocarryoutactionsthatarenotconsistentwithaLispvariablesetting.]]Thismeansthatthelow-leveldriverfunctionswilllookfor^Sontheincomingside,andwill"gag"theoutputtransmitteruntilasubsequent^Qhasbeenreceived.Wheninthe"gag"'dstate,thevalueoftheglobalvariableRS232XOFF?willbeT;whennot"gag"'d,itwillbeNIL.Itshouldhardlybenecessarytomentionthatitwillcauseunduetroubletoturnthisfeatureonwhenthecorrespondinghostdoesn'talsoobeytheXON-XOFFprotocols.[[Footnote:SincetheRS232Cportcontainsadditionalbuffering"outboard"ofthe1108,LispwillprobablynotseeanincomingXOFFcharacterinthetimerequiredbysomecorrespondents;thisproblemwillbefixedinafuturereleaseofsoftware,butitisthe"outboard"I/OprocessorthatisatfaulthereratherthanLisp]]Thisprotocolis,ofcourse,temporarilyturnedoffbytheRS232FTPfunctions,whichtransmitandreceiverandombytes.(RS232SENDBREAKEXTRALONG?)sendstheout-of-bandBREAKsignal,foraperiodof0.25seconds;iftheoptionalargumentEXTRALONG?isnon-NIL,thentheperiodisextendedto3.5seconds.(RS232MODEMCONTROLSIGNALSONLST)isalambda-nospreadfunctionwhichsetsthemodemcontrollinestobe"on",forthesignalsnamedinthelistSIGNALSONLST;itreturnstheformersettingofthelines.IfSIGNALSONLSTisnotsupplied(whichisnotthesameassupplyingNIL),thenthecontrollinesremainunchanged.TheentriesinSIGNALSONLSTarelitatomnamesforstandardmodemcontrollines;currentlyusablesignalnamesareDTRandRTS.(RS232MODIFYMODEMCONTROLSIGNALSONLSTSIGNALSOFFLST)Changesonlythosemodemcontrollinesspecifiedintheunionofthetwoarguments;thoseinSIGNALSONLSTaresettobeon,andthoseinSIGNALSOFFLSTaresetoff.Returnstheformerstatejustas(RS232MODEMCONTROL)does.(RS232MODEMSTATUSPSPEC)Returnsnon-nulliffthereadingofthemodemstatuslinesisconsistentwiththebooleanformspecifiedbySPEC;modemstatussignalscurrentlysupportedareCTS,DSR,RI,andRLSD.SPECmaybeanyAND/OR/NOTcombinationoverthesignalnames.Example:(RS232MODEMSTATUSP'(ANDCTS(NOTRLSD))).(RS232MODEMHANGUP)takeswhateverstepsappropriatetocausethemodemto"hangup";generally,thismeansturningtheDTRsignaldownforabout3seconds,oruntiltheDSRsignalhasgonedown[[Footnote:Thereisabuginthelow-levelcodeforthe1108's"outboard"I/OprocessorsuchthattheTTYPortcan'tactuallyturnofftheDTRsignal;aconsequenceofthisisthatRS232MODEMHANGUPwillnotworkontheTTYPort.]]ErrorConditionReportingНHpО(Н ЙОg_pНIЎОhsНJjОhsН ТОbhНН\Н`Нd Н!xН"$ Н)┬Н,ДН.Х Н6ЬН;Н=╟Н?ЄНC╪НC╪ОbhН ТОaT НXНОaTН ТО`@НЙННН·НіНZН^ Н%бН)йН+нН-рН1.Н4┼Н6▌Н:√Н< НFНFўНJ НJ О`@Н ТО_,Н ЭНН`НdО_,Н ТО^НЙНННFНЧНН!Н$jН+"Н.~Н2├Н4┼Н;BН>·НBіНD╙НJІНJІО^Н ТО] НXН\НО]Н ТО[ПНЙНННРНЧНН^Н#ЎН'Н*vН1.Н32Н7:Н9ЙН>·НAЗНCЧНHНHО[ПН ТОZэН╛Н╟Н`НhОZэН ТОYхНЬ НННдН Н*ЮН.<Н3°Н6LН8ЭН;╛Н@`НEюНEюОYхН ТОXЄНННННН"п Н*4Н,ДН0ЛН7єН;Н>\Н@`НGНIНIОXЄН ТОW═Н╦Н Н"пН&,Н.ХН2DН6LН8ЭН=НAНDhНIхОW═Н ТОV▄Н ═ОV▄Н ТОUxН ═ОUxН ТОTdН ═ОTdН ТОSPНЙНЮНжНлН"─Н)8ОSPН ТОR<Н ═ОR<Н ТОQ(Н ═НLННhН Н(эН,8Н/■Н2DН4ТН8ЭН=Н=╟Н?ЄНFlНHpНHpОQ(Н ТОPН PНН\Н╦НlНpН"$Н$(Н&ьН+▄Н.ХН4HН6ЬН:TН\НBdНDhНIНJtНJtОKдН ТОJ╟Н PН\Н╦Н╪НюНН Н$тН&ьН*ЮН1≤Н5═ОJ╟Н ТОI°Н ═ОI°Н ТОH┬Н ═НLН╦НlН$тН(эН+▄Н.<Н0Л Н8PН:TН=НAНGдНGдОH┬Н ТОGtН ЭН╛Н╟НdН╪НН Н%─Н&,Н*ЮН0ЛН2П Н;Н=╟НAНCНFlНFlОGtН ТОF`НЄОF`Н ТОELН ═ОELН ТОD8Н ═ОD8Н ТОC$Н ═ОC$Н ТОBНЙНЮНжНлН!тН(▄Н/DОBН ТО@ЭН ═О@ЭН ТО?ХН ═О?ХН ТО>тН ═НLННhНtН"$ Н)┬Н+▄Н.<Н3°Н6LН8ЭНтН ТО=юНє Н╦ННдНхН$тН(0 Н/■Н2ПН4ТН;Н>\НAНCНFlНHpНHpО=юН ТО<╛Н PНTНН╦ННдН лН$(Н&,Н.ХН2DН7єН9╗Н@`НA НIНIО<╛Н ТО;≤НЬНН╟ННННtН$(Н&ь Н.<Н0@Н2ПН6ЬН8ЭН;╛Н@`НFlНFlО;≤Н ТО:└НЄН╦НюНдН!xН"пН'└ Н/■Н3°Н6LН8PН9╗Н>\Н@`НC╪НHpНHpО:└Н ТО9pН ЭН╛ ННхН"$Н&ьН)┬Н,ДН1≤Н8PН8ЭН9╗Н= НDhНIНIО9pН ТО8\Н PНННННхН"$Н'└Н)┬Н2DН2ПН3°Н6L Н>\Н@`НC╪НGНIНIО8\Н ТО7HН ЭН╛ННhННх Н&,Н)┬Н*ЮН.<Н4H Н;╛Н\Н@`НDhНFlНGдНGдО/╪Н ТО.╗Н╗НННдНtН!xН#|Н&, Н-░Н0@Н6ЬН:TН\НBdНEюНJtНJtО.╗Н ТО-■Н PНН╟НННхН лН&, Н.<Н2ПН5═Н7єН:TН@` НGдНGдО-■Н ТО,─Н ЭНН╦НН лН%─О,─Н ТО+lН ═О+lН ТО*XН ═НLН НН"$Н$т Н,ДН0ЛН6LН8ЭН:TН?НAНDhНJtНK НK О*XН ТО)DНЬН╗НЄНю Н"$Н$(Н*4Н-░Н0@Н4ТН6ЬН=Н?НA╦НGдО)DН ТО(0Н ═О(0Н ТО'Н ═НLНН!xН#|Н$тН/■Н0@Н6LН:TН=╟Н@`НDhНIхНIхО'Н ТО&Н ЭНННН╪НlН лН$тН&ьН)┬Н,ДН6LН8PН=╟Н@`НEНJtНJtО&Н ТО$ТНЬН╗Н\НННхН лН#|Н)┬Н.<Н0@Н2ПН5═Н8ЭН;НA╦НEюНIНIО$ТН ТО#ЮНєНННю Н"$Н"пН%─Н*ЮН,ДН5═Н8PН=╟НA╦НDhНJtНJtО#ЮН ТО"лН ЭН\ННхН#|Н(0Н,8Н.ХН1≤Н4HН7єО"лН ТО!╦Н ═О!╦Н ТО єН ═НLНН$т Н.ХН4HН7єН;╛Н?ЄНEНIНIО єН ТО░Н╛Н╟Н`НhНlНН л Н(0Н,8Н.<Н6ЬН9╗Н\Н@`НCНEюНIхНIхО░Н ТО|НЬН`ННюННхН$(Н&ьН+▄Н/■Н2ПН4ТНBdНFlО|Н ТОhН ═ОhН ТОTН ═НLННН!xН'└Н*4Н,ДН2DН4HН6ЬН;Н?ЄНC╪НEюНEюОTН ТО@ НXНЄНdНдН Н&ьН(эН,ДН0ЛН5═Н;НA╦НHpНHpО@Н ТО,НєНН\НН╪НдН Н"пН$тН'└ Н.Х Н6ЬН:TН=НA╦НFlНGНGО,Н ТОНН╛ОН ТОНЙНўНІН"fН%бН+нОН ТОПН ═ОПН ТОэН ═НLННН"$Н&, Н.<Н0@Н4HН6ЬН;Н=НAНDhНDhОэН ТОх НXНЄН╪НН лН#|Н(0Н+▄Н.<Н2DН3°Н9╗Н;╛Н?ЄНBdНEНIхНIхОхН ТОЄНєНН\ НlНtН!xН"пН%─Н'└Н*4Н0ЛН4HН6ЬН9╗Н>\ НEюНHpНHpОЄН ТО═Н╛ННdННtН#|Н)┬Н,ДН/■Н2DН4ТН:TН;╛ НC╪НEюНIНIО═Н ТО▄НЬНTНюНН лН$(Н&,Н(э Н0@О▄Н ТОxН ═ОxН ТОdН ═ОdН ТОPН ═ОPН ТО <НЙНЮНжНлН!тН(▄Н/DО <Н ТО(Н ═О(Н ТОН ═ОЪФ Йq?─`ҐS4Thehardwarewilldetecttheusualerrorconditions(droppedcharacters,parityerrorswhensoinitialized,andframingerrors)inadditiontodetectingaBREAKbeingsent.Additionally,certainlow-levelerrorsmayoccurineitherthehardwareorsoftwarewhichcanonlybeclassifiedasdeviceerrors.Therearethreeglobalvariablesprovidingafunctionalinterfacetothehandlingoftheseerrors:RS232BREAKFN,RS232LOSTCHARFN,andRS232DEVICEERRORFN.WhenaBREAKhasbeendetected,thesoftwarewillsettheglobalvariableRS232BREAKSEEN?tonon-NIL;itwillalsocheckthevalueofRS232BREAKFN,andifnon-NIL,willapplyittoNIL.Similarly,ifthereisanyerrorconditionwhichcausesacharactertobedropped,thelow-leveldriverswillapplythevalueofRS232LOSTCHARFN,ifnon-NIL,toalitatomdescribingthereasonforthelossage.Currentlythe"reasons"are:DroppedCharacter,ParityError,FramingError,RingBufferFull,LineBufferFull,andMultipleErrors(whichisacatch-allforanycombinationoftheforegoing"reasons").ThedefaultvalueforRS232LOSTCHARFNis\RS232DING,whichwill"flash"thedisplayscreenacoupleoftimes,andputthevalueof\RS232.DROPPEDCHARACTER.CODEintotheringbuffer[initiallythisissetto(CHARCODE#^G)].Finally,whensomeinscrutable"deviceerror"occurs,thevalueofRS232DEVICEERRORFN,ifnon-NIL,willbeappliedtoalitatomreason.Currentlythe"reasons"are:TransmitterWedgedandRS232CDisaster.TheformeristypicalofaTTYPortusewithouttheproperadaptorcable;thelatterseemstoindicateabuginthelow-levelI/Oprocessorsoftware.ThedefaultvalueforRS232DEVICEERRORFNis\RS232.DEVICEERROR,whichwill"flash"thedisplayscreenacoupleoftimes,andprintamessageinthePROMPTWINDOW.RS232CHATFacilityThefunctionRS232CHAT,withfouroptionalarguments,initiatesafull-duplextransmissionthroughttheRS232port.(RS232CHATTypeScriptStreamBINHOOKLocalEchoStreamXON\XOFF?)Thefirstargument,TypeScriptStream,iscoercedintoastreamforprintingthereceivedcharacters(defaultistousethewindowinthevalueof\RS232CHATWINDOW,whichifnull,willinteractivelyasktheusertolayoutaregionforsuchwindow);ifBINHOOKisnon-NIL,iatisauser-programmableinterfaceforfilteringthecharacterswhicharrivefromtheremotecorrespondent;NB:itmustbetheoutputofthefunctionMAKEBINHOOK[[Footnote:thisfacilityisn'tfullyreadyyet--it'sprimaryapplicationwillbetoprovideaflexiblemeansforemulationofthevarioussemi-smartterminalsliketheHeath-19etc.];ifLocalEchoStreamisnon-NIL,itspecifiesthatlocalechoingofthetyped-incharactersistobedone,withTmeaningtousethesamestreamasthefirstargument,andanyothervaluebeingcoercedintoastream;XON\XOFF?controlswhetherornottousetheXON\XOFFprotocol.Whilein"chat"mode,characterinterruptsareshutoff,thekeyboardisratherplainlyinterpreted,andcharacterstypedinonitaresenttothecorrespondent.Ordinarily,ahostwillsendaCR/LFfor"newline",butsomesendonlyone;amenuselectionfromthechatwindowletsyoupickoneortheotherifthisisthecase(especiallyusefulwithUNIXsystems).Similarly,youcanspecifythattheRETURNkey(or,EOLkey)sendeitherjustCRorbothCR/LF.Iflocalechoingisbeingperformed,anditthelocalechostreamisthesameasthemainRS232CHATwindow,thenthelocally-generatedcharacterswillbeenclosedinsquare-brackets,asameansofdistinguishinglocalechofromremoteoutput.Caveatapplicabletothenon-RS232Cportsonly:Sinceoutputtothethedisplaytakesanon-trivialamountoftime(e.g.,justgoingthroughthecharacterprintoutroutines,and"painting"acharacterontothescreenbit-maprequiresoveramillisecond,andscrollingamodest-sizedwindowmaytakewellover30milliseconds)itisquestionablewhetherbaudratesabove2400willbeacceptableforRS232CHAT,andtheremayevenbeocasionalproblemsabove1200baud.At"slower"speeds,thatis,atlessthanabout600baud,theuseofRS232BACKGROUNDmayalleviatetheseproblems.However,RS232CHATwillpayattentiontotheDSPSCROLLsettingofthechatwindow,andwilldo"roll"moderatherthan"wrap"modeprovidedthatitcandosowithoutdroppingcharacters["roll"describesthe"scrollup"actionwhentypeoutreachesthebottomofthewindow].IftheXON/XOFFprotocolisbeingused,orifthebackgroundprocessmentionedaboveisinoperation,thenlikelytherewillbenoproblemisusing"roll"mode.Escapefrom"duplex"modeismadebytypingthethecharacterwhichisfoundinthevalueof\RS232ESCAPE.CHARCODE,currentlyinitializedto(CHARACTER#B)[thishappenstobemiddle-blank].Typing"?"justaftertheescapecharacterwillgiveasmall"helpmessage;thecommandstobeusedinthismodeareallone-letter:B-sendaBREAK(0.25seconds)E-changetheescapecharacterF-deactivatetheXON\XOFFprotocolH-callthefunction(HELP),withinterruptsre-activatedL-callthefunction(RS232.PROMPT&LOGIN)O-settheXON\XOFFprotocolactiveQ-forquitandexit,presumablybacktoLISPXS-setthespeedoftheRS232port;?willdisplaychoices.-'Return'keysendstoremotehost-'Return'keysendstoremotehostН ═ОН ЙОg_pН ТОhsН ═ОhsН ТОbhН ═НLНЬНєНTН`Н╪НpН Н$(Н(0 Н/■Н5═ Н=╟НBdНGНJtНJtОbhН ТОaTНЬНЄНdНдН"$Н$(Н*4Н,8Н2ПН4HН8PН\Н@`НFlНIхНIхОZэН ТОYхН ЭННН`НН╦ОYхН ТОXЄН ═ОXЄН ТОW═НЙ НNНRНZН^Н!Н%Н+нН/жН4┼Н5БН< Н>·Н@╒НFўНI^НI^ОW═Н ТОV▄Н╛ННhНpН Н$(Н&,Н1≤Н3°Н9╗Н;╛Н=НBd НIхНIхОV▄Н ТОUxНєНXНН╦НдНpН$(Н&ьН-░Н0ЛН=НEюНEюОUxН ТОTdН\НН(эН+▄ Н5═Н:TН\Н>\ОR<Н ТОQ(НpН лН#|Н&ьН+▄ Н2ПН6LН8PН;Н=НC╪НHpНIНIхОQ(Н ТОPН ═ОPН ТОOНЙНЖНRНў Н#ЎН)Н-рН32Н5БН9ЙН;ННI^НI^ОOН ТОMЛНЬНН`НdНдНхН Н%─Н*ЮН+▄Н2DН4ТН;╛Н?Н?ОMЛН ТОLьНН╪Н#|Н$(Н&ьН+▄Н-░Н2ПН4ТН6LН;╛Н>\НC╪НFlНFlОLьН ТОKдН╗НН╪НlН Н$(Н&,Н,8Н-░Н0@Н2DН4ТН;╛Н>\НEНEОKдН ТОJ╟Н╛НXННhНpН Н,ДН.ХНО?ХН ТО>тНєН╛НdН#|Н%─Н*ЮН.<Н/■Н4HН6ЬН=Н?ЄНEюНEюО>тН ТО=ю НXНdНhНlНН лН%─Н'└Н*4Н.<Н0@Н\Н@`НBdНEюНJtНK НK О.╗Н ТО-■НЬНН`НdНl Н"пН%─Н'└Н*4Н.<Н1≤Н6LН8PН;Н>\Н@`НCНFlНFlО-■Н ТО,─Н╛ННhНН(0 Н/■Н2ПН4ТН;Н=НHpНJtНJtО,─Н ТО+lНLНTНX НlНtН"пН&,Н*ЮН0@О+lН ТО*XН ═О*XН ТО)DН ═НLНЬНєНX Н╪НюНp Н$тН(эН,ДН0ЛН5═Н7єН:TН=НBdНFlНGдНGдО)DН ТО(0 НН╦Н╪НН лН$(Н(0Н-░Н0@Н6ЬН=НC╪НFlНFlО(0Н ТО' НXН╟НhНдНtН$(Н)┬Н/■Н2ПН4HН=Н?ЄНFlНGдНGдО'Н ТО&Н╟НdННpН лН$(Н&,Н/■Н1≤Н3°Н\Н@`Н@`О#ЮН ТО"лНЄНdНН"$Н(эН)┬Н/■Н6LН9╗Н\НBdНDhНFlНIНIО░Н ТО| НXН╦НpН!xН#|Н%─ Н,ДН0@Н4ТН8ЭН\Н@`НEюНGдНGдО|Н ТОhН ЭН╟Н╦ОhН ТОTН ═ОTН ТО@Н ═НLНЬНєНXНЄНюНН Н#|Н%─Н*4Н,ДН/■Н6LН:TН\Н?ОН ТОПНЬНTН╟Н`Н Н ОПН ТОэН ═НLНЬН PН╗НН\НdННН"$ОэН ТОхН ═НLНЬН PН╗Н\ННюН!xОхН ТОЄН ═НLНЬН PН╗ НН╪НхН$тОЄН ТО═Н ═НLНЬН PН╗ННЄНюН Н#| Н*ЮН3°О═Н ТО▄Н ═НLНЬН PН╗ННЄНюН(эО▄Н ТОxН ═НLНЬН PН╗НXННН Н$тОxН ТОdН ═НLНЬН PН╗НXНЄНdНl Н"пН&,Н(0Н,8ОdН ТОPН ═НLНЬН PН╗НXННННдН лН$тН&,Н)┬Н.ХН4ТОPН ТО <Н ═НLНЬНTН╛Н╦НhНpН лН"пН'└Н*ЮО <Н ТО(Н ═НLНЬНTН╛Н╦НhНpН#|Н%─Н*4Н-░О(Ъ╞ Йq?─`Ґ 5^B-runa"break"orHELPloopR-callRAID7-truncateincomingcharactersto7bits(thisisnecessarywhenyouhaveopenedan8-bitconnectionignoringtheparitybit;youreallyonlywanttoseethelower7bitsinterpretedasacharactertobeprintedonthewindow).8-undothe"7-bit"modeabove(justincaseyouactuallywantedtoseetheeightbit--typicallytheprintoutwillbejustthesameasasthe7-bitprintout,butpreceededbya"#"whentheeighthbitisoninacharacter.)Additionalcontrolmaybeexercisedwiththepop-upmenuobtainedbypressingthemiddlemousebuttonwiththecursorintheRS232CHATwindowwhileRS232CHATisactive;itscommandsareessentiallyself-documenting,andareasuper-setoftheabove-mentionedcommandsavailablefromthekeyboard.Inparticular,it'spossibletoalterwhatRS232CHATthinksisthe"NewLine"character;Interlisp-D'sdefaultistochooseCR,butforconnectionstosomesystems,LFisamuchbetterchoice.Twoothercommandspermit"toggling"(thatis,switchingthestatefromonechoicetoanalternate,andvice-versa):~LocalEchoand~RollMode.ThelatterwillchangetheDSPSCROLLof\RS232CHATWINDOW;theformerwill"toggle"theuseofthelocalechostreamprovidedinthecalltoRS232CHAT(orwilluse\RS232CHATWINDOWifnostreamwasprovided).Anumberofinternalglobalvariablescontrolcertaincharacteristics;inadditionto\RS232ESCAPE.CHARCODEmentionedabove,thereare:\RS232PERMITTED.INTERRUPTS--alistofitemssuchasreturnedbyINTERRUPTCHAR(orsuchaswouldbeinputtoRESET.INTERRUPT),whichwillbe"active"duringRS232CHAT;initiallythislistisnull.\RS232CHAT.IgnoreCharcodes--alistofcharactercodesthatwillbeignoredbytheinputsideofRS232CHAT;initiallythislistcontainsonlythesinglecode(CHARCODENULL).\RS232CHAT.EOLsequence--AstringofcharacterstobesentoutwhenevertheRETURNkeyistypedonthekeyboard;initiallythisjustcontainstheonecharacterCR,andischangeablebyamenucommand.\RS232CHAT.NEWLINECHAR--NormallysettoLF,whichwillcauseRS232CHATtoworkrightforsystemswhichsendbothCR/LFfornewlineaswellasforthosethatsendonlyLF(e.g.,UNIX).However,somehostssendonlyCR,andthustogetRS232CHATtoadvancetoanewline,CRmustberecognizedasthe"newline"character.Thisoptionischangeablebyamenucommand.Notethatthissectionisn'ttalkingabouttheEOLcharacter.\RS232CHAT.BellSequence--SincethestandardInterlisp-Dactionforprintinga"bell"toadisplaystreamtakestoolong(muchlongerthantheinter-charactertimeat1200baud),thenwhenanon-RS232Cportisinuse(unlesstheXON\XOFFprotocolisenabled),thisstringofcharacterswillbesubstitutedforthe(CHARCODEBELL).Initially,itisjust"^".Thefollowingtwofunctionsaremostusefulwhentryingto"chat"toahostthroughanRS232portrunningataspeedhigherthanInterlisp-Dcansupportfordisplaystreamactivities:(RS232LOGINHOSTUserNamePASSWORDHostSYSTEMTYPETypeScriptStreamPROMPTFORWORDstreamURGENCY.OPTION)Ofthe7arguments,mostareoptional.HOSTisanameforthemachinewithwhichtheRS232portiscorresponding;UserNameisthedesiredusername/login.idonthatmachine;PASSWORDisthepasswordneededthere;HostSYSTEMTYPEisthehost'soperatingsystemtype(currently,onlyTOPS-20,TENEX,VMS,UNIX,WAITS,ITS,andTOPS10areknowsystemtypes;TENEXisthedefault);theremainingthreeargumentsareconcernedwheretoechotheactivitycausedbythisfunction,andaremainlyofinteresttoothersystem-levelfunctions.TheglobalvariableRS232OSTYPESisparalleltoNETWORKOSTYPES,butthenamesarenotinanywaycoordinatedwithanamedatabase,suchasoccurswithethernetprotocols;infact,NETWORKOSTYPESwillalsobeconsultedbyRS232LOGIN,soitwouldnotbewisetouseanameforanRS232correspondentthatisinconflictwithNETWORKOSTYPES.IfeitherUserNameorPASSWORDisNIL,theywillbeobtainedviaPROMPTFORWORDfromthekeyboard(thisissothatyoudon'thavetohavepasswordsincodefiles);thereisalsoaninternalcacheoftheinformationabouthost/username/password,justasiskeptforloginsovertheEthernet.WhentheHost'ssystemtypeisknown,thenadatabaseofloginprotocolsisconsultedtofigureouthowtosend(automaticallyandblindly)thenecessarycharacterstoeffectalogin.Atconvenientmoments,theoutputfromthehost,whichisaccumulatedintheRS232linebuffer,willbeoutputfortheuser'sperusal(thefifthargumentisastreamforthisprintout:NILdefaultstotheprimaryoutput,NONEgagsthistype-out;window,filesets.allareacceptablehere).Aprimaryreasonforthisfunction'sexistence,besidesthecacheingofsuchinformationaslogin.idandpassword,istopermitloggininatspeedswhichcannotsupportRS232CHAT(seedocumentationabove);also,itisconvenienttobeabletoselect"Login"fromtheRS232CHATmenuandhavetheloginsequencesentautomatically.(RS232.PROMPT&LOGINTypeScriptStream)promptstheuser(viaPROMPTFORWORD)totypeinthenecessaryinformation,inthePROMPTWINDOW,tocallanduseRS232LOGIN;theargumentishandedtoRS232LOGINasitsfifthargument(the"Type-outstream"argument).Н-░О(Н ЙОg_pНIЎОhsНJjОhsН ТОbhН ═НLНЬН ЭНTНН\Н╪НюНН!xОbhН ТОaTН ═НLНЬН PН ЭНTН╟НОaTН ТО`@Н ═НLНЬН PН╗НЄНю Н"$Н$(Н%─Н(эН,ДН.ХН5═Н8ЭН;╛О`@Н ТО_,Н ═НLНЬНєН PН ЭН╗НTН╟НdНhНp Н$тН*ЮН-░Н2DН5═Н8PН=О_,Н ТО^Н ═НLНЬНєН PН ЭН╗НTН╟НННюНpН!xН"пН&, Н.<Н0@Н1≤Н8PН:TН·Н@╒НFўНH╡НH╡ОJ╟Н ТОI°Н╪НtН$(Н(0Н+▄ОI°Н ТОH┬Н ═ОH┬Н ТОGtН ═НLНpНtН лН$(Н&,Н*4Н-░Н/■Н5═Н7єОGtН ТОF`Н ═НLНЬНєН PН ЭНdННpНtН#|Н%─Н)┬Н+▄Н7єН;╛Н?Н?ЄОF`Н ТОELН ═НLНЬНєН PН ЭНННю Н"$Н(эН,8Н/■Н1≤Н5═ОELН ТОD8Н ═НLНpНtН лН$(Н&,Н,ДН0ЛН4HН7єН9╗Н?ОD8Н ТОC$Н ═НLНЬНєН PН ЭНН╟Н╦НН Н#|Н*4Н-░Н0ЛН6ЬН:TН=ОC$Н ТОBН ═НLНЬНєН PН ЭН╟ННдН!xОBН ТО@ЭН ═НLНюНдНН"пН$т Н,8Н.<Н0@Н3°Н6LНтН ═НLНЬНєН PН ЭНЄНdНН Н#|Н%─Н&ьН*4Н0@О>тН ТО=юН ═НLНюНдН"пН%─Н'└Н*4Н.<Н1≤Н5═Н\О<╛Н ТО;≤Н ═НLНЬНєН PН ЭН╛НЄННlНхН лН%─Н*4Н*ЮН0ЛН4HН8PН;╛Н?Н?ЄО;≤Н ТО:└Н ═НLНЬНєН PН ЭН╛Н\Н╦Н╪НlН"$Н$(Н)┬Н+▄Н,ДН/■Н3°Н5═Н8ЭН;Н;╛О:└Н ТО9pН ═НLНЬНєН PН Э Н`НdНН л Н(0Н(эН,8Н0ЛН2П Н:TН·НAЗНGZНI^НI^О.╗Н ТО-■Н ЭНXН╦Н╪ННН"пН&, Н.<Н0ЛН6LН8ЭН>\НCНCО-■Н ТО,─ НО,─Н ТО+lН ═О+lН ТО*XН ═НL Н\Н╦НдН"п Н,ДН8PН8ЭО*XН ТО)DНЙНЮНжН&FН1О)DН ТО(0НЬН╗Н НdНюНpН$(Н$тН(0Н*4Н+▄Н.ХН1≤Н4HН9╗Н=НAНC╪НGдНGдО(0Н ТО'Н PНT НhНtН!xН$(Н)┬Н5═Н7єН;НAНGНIНIО'Н ТО&НєН╟НdН Н&,Н(0Н*ЮН/■Н6LН;Н>\ НFlНIхНIхО&Н ТО$ТННЄННН лН$(Н&ьН+▄Н.<Н1≤Н6LН;Н?НAНC╪НJtНJtО$ТН ТО#ЮНєН\НdНН лН'└Н(0Н,8Н.<Н1≤Н4HН:TН?НAНDhНDhО#ЮН ТО"лН╛Н\ННюНдН"пН$тН(эН1≤ Н8ЭН9╗Н\НEНGНGОН ТОН╛Н╟НdННдНхН"$ Н,8Н.ХН4ТН7єН>\ НEюНGдНGдОН ТОПН╗ННЄН`Нd НхН$тН'└Н,8Н/■Н2DН6LН:TНMUMBLE")(RS232PUTFILE'{DSK}RUN.DCOM'BINARY'MODEM"MODEMRBRUN.DCOM")BothendsoftheMODEMprotocolhave"synchronizing"features,soatypicalscenarioofusagewouldbetouseRS232CHATtologintothehost,andthensimplyputtheMODEMprograminitswaitstate,bytypingwhateverargumentsitneeds,andfinallyexitingfromRS232CHATandcallingRS232GETFILE(orRS232PUTFILE)directly,withoutthefourthargument.Onereasonforthefourth-argumentcapabilityissothatonemayuseRS232FTPatspeedsgreaterthanwouldbeavailableforRS232CHAT--logincouldbeachievedthroughuseofthefunctionRS232.PROMPT&LOGIN,andfiletransferthroughtheuseofRS232GETFILEorRS232PUTFILE,andnoneedarisesatallforaterminalprotocol.TheglobalvariableRS232FTPTRACEFLG,ifnon-null,causesatraceofactivitytobeprintedoutonthefile/streamspecifiedbytheglobalvariableRS232TRACEFILE;itthevalueisPEEK,thenonlya"+"willbeprintedforsuccessfultransitofpackets,and"-"forunsuccessfulones;anyothernon-nullvaluecausesamoreverboseoutput.SeveralimplementationsoftheMODEMprotocolforothermachinesareavailable:onefortheIBM/PCisavailableonfloppydiskthroughXeroxArtificialIntelligenceSystems;othersareavailableforVAX/VMSandVAX/UNIXusers.Н8ЭО(Н ЙОg_pН ТОhsН ═ОhsН ТОbhН ═ОbhН ТОaTН ═ОaTН ТО`@Н ═О`@Н ТО_,Н ═НLНЬНєН PН ЭН╗НTНН╛НXНН╟Н\ННЄН`НН╦НdНlНtН%─О_,Н ТО^Н ═О^Н ТО]НЙН НRНZН Н'Н)Н/*Н1зН5БН9>Н?ЖНCRНEVНI^НI^О]Н ТО[П ННЄННtН!xН$тН*ЮН-░Н4HН6LН8Э Н@`НFlНFlО[ПН ТОZэН╗Н╟Н╦НhНюНН Н&,Н*4Н/■Н0ЛН5═Н;╛Н>\НA╦НFlНJtНJtОZэН ТОYх НXН`НННдН л Н(0Н*ЮН.<Н2DН5═Н;Н\ НFlНIхНIхОMЛН ТОLьН ЭН НdНlНН#|Н(0Н*ЮН,ДН2ПН@`НC╪НIхНIхОLьН ТОKдНЬНT НdНl Н#|Н&ьН*ЮН,ДН/■Н4HН6L Н=╟Н@`НDhНGдНIхНIхОKдН ТОJ╟НєНXНННН лН&,Н+▄Н0ЛН2ПН4ТН7єН9╗Н\НA╦НEюНIНIОF`Н ТОELНН╦Ню Н"$Н%─Н*ЮН,8Н1≤Н7єН>\ОELН ТОD8Н ═ОD8Н ТОC$Н╛Нd НхН лН"$Н&ьН*ЮОC$Н ТОBН ═ОBН ТО@ЭН ═НLНЬН`ННхНtН#|Н$(Н(эН)┬Н*4О@ЭН ТО?ХН ═НLНЬНєН PН ЭН╗НTНН╛Н`НdН#|О?ХН ТО>тНЬО>тН ТО=юН ═О=юН ТО<╛Н ═НLНЬН`Н Н Н лН&,Н&ьН+▄Н,8Н,ДО<╛Н ТО;≤Н ═НLНЬНєН PН ЭН╗НTНН╛Н`Нd Н!xО;≤Н ТО:└НЬО:└Н ТО9pН ═О9pН ТО8\НЙНFН╒НіНVН^Н$jН'фН2├Н9>Н;BН< НAЗНHНJ НJ О8\Н ТО7HН ЭНННН╪НtН!xН%─Н'└Н*4Н.<Н0ЛН4HН8ЭН;╛Н>\НBdНGдНIхНIхО7HН ТО64НєННЄН╦НlН!xН(0Н*4Н.ХН1≤Н6ЬН\Н?Н?ЄНBdНGНIхНIхО5 Н ТО4НєНd НхН лН"пН&,Н(эН+▄Н.<Н4HН6LН;Н@`НC╪НGдНIхНIхО4Н ТО2ЬН╛Н\ННН Н$(Н&,Н,8Н1≤Н4HН6LН8ЭН?Н?О2ЬН ТО1ДНdННpН#|Н(эН+▄Н.<Н0@Н8ЭН;НDhНGНIНIО1ДН ТО0пН PННН╦НhНюН лН'└О0пН ТО/╪Н ═О/╪Н ТО.╗НЙН НNНZН(rН*vН1.Н5БН7:Н;BН=FНCRНEVНGZНGZО.╗Н ТО-■НTННН╦ НхН%─Н'└Н*4Н.ХН4ТН?ЄН@`НBdНEНIНIО-■Н ТО,─НЬНН\Н╦ННюНН Н%─Н(0 Н/■Н4ТН6ЬН=Н?ЄНBdНEНEО,─Н ТО+lН╟Н╦НhНpН#|Н'└Н,8Н-░Н0ЛН6LН;╛О+lН ТО*XН ═О*XН ТО)DН ═О)DН ТО(0НЙНJН Н!Н#ЎН'фН-рН0┌Н4┼Н:√Н=F НD╙НEVНHНJІНJІО(0Н ТО'НєНXН\ННН лН$(Н)┬Н-░ Н4ТН=╟НC╪НHpНHpО'Н ТО&НєН\ННlННхН$тН)┬О&Н ТО$ТН ═О$ТН ТО#ЮН ═О#ЮН ТО"лН ═О"лН ТО!╦Н ═О!╦h Йq?─`Ґ ~SNAIL╡8$╧5GsZAfОj/igЪЪ²иM╘ЪЪЪЪЪЪ#{ERIS}LIBRARY>RS232.TTY;5JONL.PA19-Nov-84 17:37:53