| 1 | /3 TTY HANDLER FOR BUILD |
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| 10 | / |
| 11 | /COPYRIGHT (C) 1974,1975,1977 BY DIGITAL EQUIPMENT CORPORATION |
| 12 | / |
| 13 | / |
| 14 | / |
| 15 | / |
| 16 | / |
| 17 | / |
| 18 | / |
| 19 | / |
| 20 | / |
| 21 | / |
| 22 | /THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE |
| 23 | /AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT |
| 24 | /CORPORATION. DIGITAL EQUIPMENT CORPORATION ASSUMES NO RESPONSIBILITY |
| 25 | /FOR ANY ERRORS THAT MAY APPEAR IN THIS DOCUMENT. |
| 26 | / |
| 27 | /THE SOFTWARE DESCRIBED IN THIS DOCUMENT IS FURNISHED TO THE PURCHASER |
| 28 | /UNDER A LICENSE FOR USE ON A SINGLE COMPUTER SYSTEM AND CAN BE COPIED |
| 29 | /(WITH INCLUSION OF DIGITAL'S COPYRIGHT NOTICE) ONLY FOR USE IN SUCH |
| 30 | /SYSTEM, EXCEPT AS MAY OTHERWISE BE PROVIDED IN WRITING BY DIGITAL. |
| 31 | / |
| 32 | /DIGITAL EQUIPMENT CORPORATION ASSUMES NO RESPONSIBILITY FOR THE USE |
| 33 | /OR RELIABILITY OF ITS SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY |
| 34 | /DIGITAL. |
| 35 | / |
| 36 | / |
| 37 | / |
| 38 | / |
| 39 | / |
| 40 | / |
| 41 | / |
| 42 | / |
| 43 | / |
| 44 | / |
| 45 | *0 |
| 46 | -1 |
| 47 | DEVICE AS33;DEVICE TTY;0;1;ZBLOCK 2 |
| 48 | |
| 49 | TTYVERSION="A&77 |
| 50 | |
| 51 | /V3 FIXES: |
| 52 | |
| 53 | /1. NOW RECOGNIZES PARITY ^Z ON OUTPUT |
| 54 | /2. NOW RECOGNIZES ^Z ON OUTPUT EVEN IF NOT |
| 55 | / FOLLOWED BY 0'S |
| 56 | /3. VERSION # IS NOW 1. |
| 57 | |
| 58 | *200 |
| 59 | /TELETYPE HANDLER - NOT VERY INTELLEGENT. |
| 60 | /ONLY RECOGNIZES ^Z AND ^C ON INPUT |
| 61 | /AND ^C AND ^O ON OUTPUT |
| 62 | /OH WELL, WHAT CAN YOU EXPECT IN ONE PAGE. |
| 63 | / THE LOGIC IS VERY SIMILIAR TO THE PTR AND PTP HANDLERS. |
| 64 | TTY360, 360 /MUST BE FIRST LOC ON PAGE! |
| 65 | TTY, TTYVERSION |
| 66 | TT7600, 7600 |
| 67 | RDF |
| 68 | TAD TTYCIF |
| 69 | DCA TTYXIT /SAVE RETURN FIELD |
| 70 | TAD I TTY |
| 71 | AND TT70 |
| 72 | TAD TTCDF |
| 73 | DCA TTYCDF /DATA FIELD OF BUFFER |
| 74 | CLA CLL CML RAR |
| 75 | TAD I TTY |
| 76 | AND TT3700 |
| 77 | CMA |
| 78 | DCA TTYWC |
| 79 | ISZ TTY |
| 80 | TAD I TTY |
| 81 | DCA TTYCA /SAVE BUFFER ADDRESS |
| 82 | ISZ TTY |
| 83 | ISZ TTY |
| 84 | JMP TTKLG |
| 85 | TTYLP, SNL CLA |
| 86 | JMP TTYGLP /ZER LINK MEANS READ |
| 87 | JMS TTYTST /TEST FOR ^C |
| 88 | TAD TTYM14 /-203-14=-217 =-"^O" |
| 89 | SNA CLA |
| 90 | JMP TTYCTO |
| 91 | TAD I TTYCA /CHARACTER 1 IS LOW ORDER 8 BITS OF WORD 1 |
| 92 | JMS TTYPCH |
| 93 | DCA TTYGCH |
| 94 | ISZ TTYCA |
| 95 | TT7400, 7400 |
| 96 | TAD I TTYCA /CHARACTER 2 IS LOW ORDER 8 BITS OF WORD 2 |
| 97 | JMS TTYPCH |
| 98 | CLL RTR |
| 99 | RTR |
| 100 | TAD TTYGCH |
| 101 | CLL RTR |
| 102 | RTR /CHARACTER 3 IS HIGH ORDER 4 BITS OF WORDS 1 AND 2 |
| 103 | JMS TTYPCH /WILL SET LINK ON! |
| 104 | TTLOOP, ISZ TTYCA /AC HAPPENS TO BE ZERO HERE |
| 105 | TT70, 70 |
| 106 | TTKLG, ISZ TTYWC |
| 107 | JMP TTYLP |
| 108 | TTYRTN, TAD TTYCDF |
| 109 | CLL CIA |
| 110 | SNL CLA |
| 111 | ISZ TTY /SKIP PAST ERROR RETURN |
| 112 | TTYXIT, HLT /RESTORE CALLING FIELDS |
| 113 | RAL |
| 114 | JMP I TTY |
| 115 | TTYPCH, 0 /MUST SET LINK ON! |
| 116 | DCA TTYTST |
| 117 | TAD TTYTST |
| 118 | TAD TTYM32 /ONLY CARE IF LOW ORDER 7 BITS ARE -32 |
| 119 | AND TTY177 /SO ONLY LOOK AT THESE BITS |
| 120 | SNA CLA |
| 121 | JMP TTYRTN /WAS A ^Z |
| 122 | TAD TTYTST /GET BACK ALL 12 BITS |
| 123 | JMS TTPRNT |
| 124 | AND TT7400 /BUT RETURN ONLY LEFT THIRD |
| 125 | STL /**** CRUD |
| 126 | JMP I TTYPCH |
| 127 | TTY212, 212 |
| 128 | IFNZRO .-TTY360-100 <ER3700,QQQQ> |
| 129 | TTYCA, 0 |
| 130 | TTYWC, 0 |
| 131 | TTYTST, 0 |
| 132 | TTYCDF, 0 |
| 133 | TAD TTY200 |
| 134 | KRS /TEST FOR ^C WITH FLAG UP |
| 135 | TAD TTM203 |
| 136 | SNA |
| 137 | KSF |
| 138 | JMP I TTYTST |
| 139 | TTYCIF, CDF CIF 0 |
| 140 | JMP I TT7600 |
| 141 | TTPRNT, 0 |
| 142 | TLS |
| 143 | TSF |
| 144 | JMP .-1 |
| 145 | JMP I TTPRNT |
| 146 | TTCDF, CDF 0 |
| 147 | |
| 148 | /FOLLOWING CODE READS TTY AND PACKS IN BUFFER. |
| 149 | TTYGLP, JMS TTYGCH |
| 150 | DCA I TTYCA |
| 151 | TTYM32, JMS TTYGCH |
| 152 | DCA TTYPCH |
| 153 | JMS TTYGCH |
| 154 | RTL |
| 155 | RTL |
| 156 | DCA TTYGCH |
| 157 | TAD TTYGCH |
| 158 | AND TT7400 |
| 159 | TAD I TTYCA |
| 160 | TT3700, DCA I TTYCA |
| 161 | TAD TTYGCH |
| 162 | TTY200, AND TTY360 |
| 163 | CLL RTL |
| 164 | RTL /CLEARS LINK |
| 165 | TAD TTYPCH |
| 166 | ISZ TTYCA |
| 167 | DCA I TTYCA |
| 168 | JMP TTLOOP |
| 169 | IFNZRO .-TTY360-146 <TTYERR,QQQQQ> |
| 170 | TTYGCH, 0 /MUST BE AT REL LOC 146 |
| 171 | TAD TTYCDF |
| 172 | TT7700, SMA CLA |
| 173 | JMP I TTYGCH |
| 174 | ISZ TTYTST |
| 175 | JMP TTYKSF |
| 176 | TAD TTY212 |
| 177 | JMP TTECHO |
| 178 | TTYKSF, KSF |
| 179 | JMP .-1 |
| 180 | JMS TTYTST |
| 181 | TAD TTM27 |
| 182 | SNA /IS IT A ^Z? |
| 183 | DCA TTYCDF /YES - SET END-OF-FILE FLAG |
| 184 | TAD TTY14 |
| 185 | DCA TTYTST /TTYTST=-1 IF CARRIAGE RETURN |
| 186 | KRB |
| 187 | TTECHO, JMS TTPRNT /ECHO THE INPUT CHARACTER |
| 188 | JMP I TTYGCH |
| 189 | TTM203, -203 |
| 190 | TTM27, -27 |
| 191 | TTYM14, -14 |
| 192 | TTY177, 177 |
| 193 | IFNZRO .-TTY360-175 <NICE,QQ> |
| 194 | TTYCTO, 6032 /SHOULD BE AT REL LOC 175 FOR PATCHERS |
| 195 | JMP TTYRTN |
| 196 | TTY14, 14 |
| 197 | $ |
| 198 | \f |