projects / pdp8.git / blame
| Commit | Line | Data |
|---|---|---|
| 7af5ad59 PH |
1 | /TC08 DECTAPE FORMATTER, V4 |
| 2 | / | |
| 3 | / | |
| 4 | / | |
| 5 | / | |
| 6 | / | |
| 7 | / | |
| 8 | // | |
| 9 | / | |
| 10 | / | |
| 11 | / | |
| 12 | / | |
| 13 | /COPYRIGHT (C) 1975 | |
| 14 | /DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS. | |
| 15 | / | |
| 16 | / | |
| 17 | / | |
| 18 | /THIS SOFTWARE IS FURNISHED UNDER A LICENSE FOR USE ONLY ON A | |
| 19 | /SINGLE COMPUTER SYSTEM AND MAY BE COPIED ONLY WITH THE INCLU- | |
| 20 | /SION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE, OR ANT OTHER | |
| 21 | /COPIES THEREOF, MAY NOT BR PROVIDED OR OTHERWISE MADE AVAILABLE | |
| 22 | /TO ANY OTHER PERSON EXCEPT FOR USE ON SUCH SYSTEM AND TO ONE WHO | |
| 23 | /AGREES TO THESE LICENSE TERMS. TITLE TO AND OWNERSHIP OF THE | |
| 24 | /SOFTWARE SHALL AT ALL TIMES REMAIN IN DEC. | |
| 25 | / | |
| 26 | / | |
| 27 | /THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT | |
| 28 | /NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL | |
| 29 | /EQUIPMRNT COROPATION. | |
| 30 | / | |
| 31 | /DEC ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS | |
| 32 | /SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DEC. | |
| 33 | / | |
| 34 | / | |
| 35 | / | |
| 36 | / | |
| 37 | / | |
| 38 | / | |
| 39 | \f/COPYRIGHT 1970 DIGITAL EQUIPMENT CORP. | |
| 40 | /MAYNARD, MASS. | |
| 41 | /REVISED APRIL 1970 | |
| 42 | ||
| 43 | / TOG-8 TO MARK AND CHECK PDP-8 DECTAPE | |
| 44 | /THIS PROGRAM WRITES TIMING AND MARK TRACKS ON | |
| 45 | /DECTAPE MOUNTED ON THE TCO1-TU55 TAPE CONTROL UNIT. | |
| 46 | ||
| 47 | ||
| 48 | ||
| 49 | ||
| 50 | ||
| 51 | X1=10 | |
| 52 | X2=11 | |
| 53 | ||
| 54 | /SYMBOL TABLE AUGMENTATION | |
| 55 | ||
| 56 | DTRA=6761 | |
| 57 | DTCA=6762 | |
| 58 | DTXA=6764 | |
| 59 | DTSF=6771 | |
| 60 | DTRB=6772 | |
| 61 | DTLB=6774 | |
| 62 | DTCX=6766 | |
| 63 | ||
| 64 | /SET 0 FOR THE LOGIN FEATURE | |
| 65 | ||
| 66 | *0 | |
| 67 | 0 | |
| 68 | JMP I .+1 | |
| 69 | CONC /CONTROL "C" AND LOGIN | |
| 70 | ||
| 71 | /WORKING LOCATIONS | |
| 72 | ||
| 73 | *20 | |
| 74 | ||
| 75 | W1, 0000 | |
| 76 | W2, 0000 | |
| 77 | W3, 0000 | |
| 78 | W4, 0000 | |
| 79 | W5, 0000 | |
| 80 | W6, 0000 | |
| 81 | BLOCKS, 0000 | |
| 82 | BLOCKA, 0000 | |
| 83 | DTA, 0000 | |
| 84 | ERX, 0000 | |
| 85 | PHASE, 0000 | |
| 86 | TOTAL, 0000 | |
| 87 | VAR1, 0000 | |
| 88 | VAR2, 0000 | |
| 89 | \f/CONSTANTS | |
| 90 | ||
| 91 | C1, 0001 | |
| 92 | C2, 0002 | |
| 93 | C3, 0003 | |
| 94 | C4, 0004 | |
| 95 | C0017, 0017 | |
| 96 | C0070, 0070 | |
| 97 | C0077, 0077 | |
| 98 | C0007, 0007 | |
| 99 | C0030, 0030 | |
| 100 | C0400, 0400 | |
| 101 | C0700, 0700 | |
| 102 | C203, 0203 | |
| 103 | C201, 0201 | |
| 104 | C210, 0210 | |
| 105 | C260, 0260 | |
| 106 | C261, 0261 | |
| 107 | C267, 0267 | |
| 108 | C270, 0270 | |
| 109 | C271, 0271 | |
| 110 | C277, 0277 | |
| 111 | C1000, 1000 | |
| 112 | C1620, 1620 | |
| 113 | C7000, 7000 | |
| 114 | C7700, 7700 | |
| 115 | C7714, 7714 | |
| 116 | C7761, 7761 | |
| 117 | C7772, 7772 | |
| 118 | C7775, 7775 | |
| 119 | CRCOD, 0215 | |
| 120 | LETK, 0313 | |
| 121 | LFCOD, 0212 | |
| 122 | M2, -2 | |
| 123 | M3, -3 | |
| 124 | M4, -4 | |
| 125 | M6, -6 | |
| 126 | M7, -7 | |
| 127 | M14, -14 | |
| 128 | M144, -144 | |
| 129 | M300, -300 | |
| 130 | SPCOD, 0240 | |
| 131 | \f/INTERPAGE LINKS | |
| 132 | ||
| 133 | ADW2, W2-1 | |
| 134 | ADW3, W3-1 | |
| 135 | BADD, BUFFER-1 | |
| 136 | BFR, BUFFER | |
| 137 | CA, 7755 | |
| 138 | COMPAR, COMPRE | |
| 139 | FCON, 0000 | |
| 140 | IT, INIT1 | |
| 141 | FORMA, FORM-1 | |
| 142 | FORMB, FORM | |
| 143 | QU1, Q1 | |
| 144 | QU2, Q2 | |
| 145 | QU3, Q3 | |
| 146 | QU4, Q4 | |
| 147 | MESS, MES | |
| 148 | STX, START | |
| 149 | TURN, TRN | |
| 150 | TYOCT, TYCT | |
| 151 | TYPE, MESAGE | |
| 152 | TYPIN, TYPN | |
| 153 | WAIT, STALL | |
| 154 | WC, 7754 | |
| 155 | DBUFPT, 0 /POINTER TO CURRENT POSITION IN DTA LIST | |
| 156 | ||
| 157 | ||
| 158 | \f | |
| 159 | ||
| 160 | ||
| 161 | /TYPE THE CHARACTER IN THE AC ON THE KEYBOARD PRINTER | |
| 162 | ||
| 163 | RSEND, 0000 | |
| 164 | TLS /LOAD AND PRINT, CLEAR FLAG | |
| 165 | TSF /WAIT FOR CONFIRMATION | |
| 166 | JMP .-1 /ENDLESSLY | |
| 167 | TCF /CLEAR THE FLAG ANYWAY | |
| 168 | JMP I RSEND | |
| 169 | ||
| 170 | ||
| 171 | /PRINT A "?" ON THE KEYBOARD TYPER | |
| 172 | ||
| 173 | QU, .+1 | |
| 174 | IOF /KILL LOG AND CONTROL C FCTN | |
| 175 | CLA CLL /C(AC)+C(L)=0 | |
| 176 | TAD C277 /"?" | |
| 177 | JMS RSEND /TYPE THE CHARACTER | |
| 178 | JMP I .+1 /RESTART | |
| 179 | INIT | |
| 180 | ||
| 181 | /DECTAPE CONTROL WORDS | |
| 182 | ||
| 183 | DT0030, 0030 | |
| 184 | DT0060, 0060 | |
| 185 | DT0070, 0070 | |
| 186 | DT0100, 0100 | |
| 187 | DT0130, 0130 | |
| 188 | DT0140, 0140 | |
| 189 | DT0200, 0200 | |
| 190 | DT0210, 0210 | |
| 191 | DT0360, 0360 | |
| 192 | DT0510, 0510 | |
| 193 | DT0600, 0600 | |
| 194 | DT0610, 0610 | |
| 195 | ||
| 196 | /SOME SPECIAL LINKS | |
| 197 | ||
| 198 | ADBA, 2475 | |
| 199 | ADWA, 2476 | |
| 200 | ADWAB, 2477 | |
| 201 | ||
| 202 | /CONSTANTS FOR FORMULA TRANSLATION SECTION | |
| 203 | ||
| 204 | BINCON, .+1 | |
| 205 | 0001 | |
| 206 | 0012 | |
| 207 | 0144 | |
| 208 | 1750 | |
| 209 | \f *200 /PAGE 1 | |
| 210 | /TYPE CANNED MESSAGES..... | |
| 211 | /THANKS TO DIGITAL 8-18-U | |
| 212 | ||
| 213 | MESAGE, 0 | |
| 214 | IOF /KILL LOG AND CONTROL FUNCTION | |
| 215 | CLA CMA /SET C(AC)=-1 | |
| 216 | TAD MESAGE /ADD LOCATION | |
| 217 | DCA 10 /AUTO INDEX REGISTER | |
| 218 | TAD I 10 /FETCH FIRST WORD | |
| 219 | DCA MSRGHT /SAVE IT | |
| 220 | TAD MSRGHT | |
| 221 | RTR | |
| 222 | RTR /ROTATE 6 BITS TO THE RIGHT | |
| 223 | RTR | |
| 224 | JMS TYPECH /TYPE IT | |
| 225 | TAD MSRGHT /GET DATA AGAIN | |
| 226 | JMS TYPECH /TYPE RIGHT HALF | |
| 227 | JMP MESAGE+5 /CONTINUE | |
| 228 | MSRGHT, 0 /TEMPORARY STORAGE | |
| 229 | TYPECH, 0 /TYPE CHARACTER IN C(AC)6-11 | |
| 230 | AND C0077 | |
| 231 | SNA /IS IT END OF MESSAGE? | |
| 232 | JMP I 10 /YES: EXIT | |
| 233 | TAD M40 /SUBTRACT 40 | |
| 234 | SMA /<40? | |
| 235 | JMP .+3 /NO | |
| 236 | TAD C340 /YES: ADD 300 | |
| 237 | JMP MTP /TO CODES <40 | |
| 238 | TAD M3 /SUBTRACT 3 | |
| 239 | SZA /IS IT ZERO? | |
| 240 | JMP .+3 /NO | |
| 241 | TAD C212 /YES: CODE 43 IS | |
| 242 | JMP MTP /LINE-FEED (212) | |
| 243 | TAD M2 /SUBTRACT 2 | |
| 244 | SZA /IS IT ZERO? | |
| 245 | JMP .+3 /NO | |
| 246 | TAD C215 /YES: CODE 45 IS | |
| 247 | JMP MTP /CARRIAGE RETURN (215) | |
| 248 | TAD C245 /ADD 200 TO OTHERS >40 | |
| 249 | MTP, TLS /TRANSMIT CHARACTER | |
| 250 | TSF /WAIT FOR THE FLAG | |
| 251 | JMP .-1 /NOT SET YET | |
| 252 | CLA /SET: CLEAR C(AC) | |
| 253 | JMP I TYPECH /RETURN | |
| 254 | ||
| 255 | /CONSTANTS | |
| 256 | ||
| 257 | M40, -40 | |
| 258 | C340, 340 | |
| 259 | C212, 212 | |
| 260 | C215, 215 | |
| 261 | C245, 245 | |
| 262 | \f/ROUTINE WAITS UNTILL A COMPLETE MESSAGE HAS BEEN ENTERED | |
| 263 | /SIGNIFIED BY A CR. | |
| 264 | ||
| 265 | TYPN, 0 | |
| 266 | IOF /KILL THE LOG AND CONTROL C FUNCTION | |
| 267 | KCC /CLEAR AC, KEYBOARD FLAG | |
| 268 | TAD BADD /GET BUFFER ADDRESS | |
| 269 | DCA W1 /STORE FOR THE CHARACTER STRING | |
| 270 | ||
| 271 | /READ AND RESPOND WITH THE CHARACTER | |
| 272 | ||
| 273 | NTYRTN, ISZ W1 /NORMAL RETURN. INCREMENT BUFFER | |
| 274 | KSF /WAIT FOR KEYBOARD | |
| 275 | JMP .-1 /FLAG TO RAISE | |
| 276 | KRB /GOT FLAG, RESET IT, GET CHARACTER | |
| 277 | JMS RSEND /SEND CHARACTER BACK | |
| 278 | AND (177 /TAKE CARE OF PARITY | |
| 279 | TAD (200 | |
| 280 | DCA I W1 /LOAD CHARACTER INTO BUFFER AREA | |
| 281 | TAD I W1 /CHECK FOR CTRL C | |
| 282 | CIA | |
| 283 | TAD C203 | |
| 284 | SZA CLA | |
| 285 | JMP CHKSP /NO- CHECK FOR SPACE | |
| 286 | 6007 /CTRL C -CLEAR ALL FLAGS | |
| 287 | NOP /FOR OLD MACHINES | |
| 288 | CLA /JUST IN CASE | |
| 289 | DTLB /CLEAR STATUS REGISTER B | |
| 290 | JMP I (7605 | |
| 291 | ||
| 292 | /IF CHARACTER IS A SPACE, IGNORE IT | |
| 293 | ||
| 294 | CHKSP, TAD I W1 /CHARACTER INTO THE AC | |
| 295 | CIA /SUBTRACT FROM SPACE CODE (240) | |
| 296 | TAD SPCOD /COMPLETE COMPARISON | |
| 297 | SNA CLA /WAS IT A SPACE? | |
| 298 | JMP NTYRTN+1 /YES: DO NOT INCREMENT BUFFER | |
| 299 | ||
| 300 | /IF CHARACTER IS A CR, EXIT FROM ROUTINE | |
| 301 | ||
| 302 | TAD I W1 /CHARACTER TO AC | |
| 303 | CIA /SET AC TO SUBTRACT CR (215) | |
| 304 | TAD CRCOD /COMPLETE COMPARISON | |
| 305 | SZA CLA /WAS IT CR? | |
| 306 | JMP NTYRTN /NO: INCREMENT BUFFER + WAIT | |
| 307 | ||
| 308 | /CARRIAGE RETURN FOUND, EXIT FROM ROUTINE | |
| 309 | ||
| 310 | TAD LFCOD /GIVE KEYBOARD LINE FEED | |
| 311 | JMS RSEND /EXECUTE LINE FEED | |
| 312 | CLA CLL /EXIT WITH C(ACC) + AND C(L)=0 | |
| 313 | ION /RESET LOG AND CONTROL C FUNCTION | |
| 314 | JMP I TYPN /RETURN TO CALL | |
| 315 | \f/COMPARE A STRING OF CHARACTERS IN "BUFFER" | |
| 316 | /TO A CHARACTER STRING AFTER A JMS IN ASCII | |
| 317 | ||
| 318 | COMPRE, 0 | |
| 319 | CLA CMA /C(AC)=7777 | |
| 320 | TAD COMPRE /SUBTRACT 1 FOR INDEX REG 1 | |
| 321 | DCA 10 /AUTO INDEX 1 SET TO CHA STRING | |
| 322 | TAD BADD /AUTO INDEX 2 SET TO BUFFER-1 | |
| 323 | DCA 11 /LOAD X2 | |
| 324 | ||
| 325 | /COMPARE CHARACTERS TILL ONE DOESN'T COMPARE OR TILL | |
| 326 | /A 0 IS FOUND IN X1. IF OK, RETURN TO TWO PLUS THE | |
| 327 | /ZERO, IF BAD ONE PLUS | |
| 328 | ||
| 329 | TAD I X1 /CHARACTER FROM PROGRAM | |
| 330 | CIA /TO SUBTRACT FROM | |
| 331 | TAD I X2 /CHARACTER IN BUFFER | |
| 332 | SZA CLA /COMPARE? | |
| 333 | JMP CERR /NO:RESYNC FOR NON COMPARE EXIT | |
| 334 | TAD I X1 /YES: CHECK FOR GOOD EXIT | |
| 335 | SZA /IF 0, EXIT GOOD | |
| 336 | JMP .-6 /NO: TEST NEXT CHAACTER | |
| 337 | ISZ X1 /+1 TO X1(TOTAL 2 FROM THE 0) | |
| 338 | JMP I X1 /+1 TO X1, EXIT | |
| 339 | ||
| 340 | /ERROR FOUND. RESYNC AND EXIT NO COMPARE | |
| 341 | ||
| 342 | CERR, TAD I X1 /CHARACTER FROM PROGRAM | |
| 343 | SZA CLA /IS THIS EXIT KEY? (0000) | |
| 344 | JMP .-2 /NO: GET NEXT | |
| 345 | JMP I X1 /YES: EXIT, NOT COMPARE | |
| 346 | \f\f *400 | |
| 347 | /VARIOUS ERROR MESSAGES | |
| 348 | /"NOT DECIMAL" | |
| 349 | ||
| 350 | Q1, JMS I TYPE | |
| 351 | 1617 /NO | |
| 352 | 2440 /T | |
| 353 | 0405 /DE | |
| 354 | 0311 /CI | |
| 355 | 1501 /MA | |
| 356 | 1400 /L | |
| 357 | JMP QUX | |
| 358 | ||
| 359 | /"TO MANY WORDS" | |
| 360 | ||
| 361 | Q2, JMS I TYPE | |
| 362 | 2417 /TO | |
| 363 | 1740 /O | |
| 364 | 1501 /MA | |
| 365 | 1631 /NY | |
| 366 | 4027 / W | |
| 367 | 1722 /OR | |
| 368 | 0423 /DS | |
| 369 | 0000 /00 | |
| 370 | JMP QUX | |
| 371 | ||
| 372 | /"TO MANY BLOCKS" | |
| 373 | ||
| 374 | Q3, JMS I TYPE | |
| 375 | 2417 /TO | |
| 376 | 1740 /O | |
| 377 | 1501 /MA | |
| 378 | 1631 /NY | |
| 379 | 4002 / B | |
| 380 | 1417 /LO | |
| 381 | 0313 /CK | |
| 382 | 2300 /S0 | |
| 383 | JMP QUX | |
| 384 | ||
| 385 | /"NOT DIVISIBLE BY 3" | |
| 386 | Q4, JMS I TYPE | |
| 387 | 1617 /NO | |
| 388 | 2440 /T | |
| 389 | 0411 /DI | |
| 390 | 2611 /VI | |
| 391 | 2311 /SI | |
| 392 | 0214 /BL | |
| 393 | 0540 /E | |
| 394 | 0231 /BY | |
| 395 | 4063 / 3 | |
| 396 | 0000 /00 | |
| 397 | QUX, JMS I TYPE | |
| 398 | 4345 /CR+LF | |
| 399 | 0000 /END | |
| 400 | JMP I .+1 | |
| 401 | INIT | |
| 402 | \f/THE CODING BELOW CREATES THE BLOCK NUMBER | |
| 403 | /CONVERSION PRIOR TO THE TAPE WRITE. | |
| 404 | ||
| 405 | MES, 0 | |
| 406 | DCA W4 /BLOCK NUMBER GIVEN IN AC | |
| 407 | TAD W4 /RESTORE TO AC AGAIN | |
| 408 | CMA /COMPLEMENTED | |
| 409 | RTL | |
| 410 | RAL /LEFT 3 | |
| 411 | DCA W5 /TEMP SAVE | |
| 412 | TAD W5 /TO AC AGAIN | |
| 413 | AND C7000 /ISOLATE HIGH CHA | |
| 414 | DCA V2 /FORWARD BLOCK NUMBER | |
| 415 | TAD W5 /SHIFTED VALUE | |
| 416 | AND C0070 /ISOLATE 6,7,8 | |
| 417 | DCA V1 /FORWARD BLOCK NUMBER | |
| 418 | TAD W4 /ORIGIONAL SET | |
| 419 | CMA /UPSIDE DOWN | |
| 420 | RTR | |
| 421 | RAR /RIGHT 3 | |
| 422 | DCA W5 /TEMP SAVE | |
| 423 | TAD W5 /TO AC AGAIN | |
| 424 | AND C0700 /ISOLATE 3,4,5 | |
| 425 | TAD V2 /COMBINE FORWARD BLOCK NUMBER | |
| 426 | TAD C0077 | |
| 427 | DCA V2 /1/2 COMPLETE | |
| 428 | TAD W5 /SHIFTED VALUE | |
| 429 | AND C0007 /ISOLATE 9, 10,11 | |
| 430 | TAD V1 /COMBINE WITH BN | |
| 431 | DCA V1 /FORWARD BLOCK NUMBER COMPLETE | |
| 432 | ||
| 433 | /CONVERT REVERSE BLOCK NUMBER | |
| 434 | ||
| 435 | CMA /-1 TO GIVEN BLOCK # | |
| 436 | TAD W4 /ORIGIONAL BLOCK # | |
| 437 | DCA W5 /TEMP SAVE | |
| 438 | TAD W5 /TO AC AGAIN | |
| 439 | RTR | |
| 440 | RTR /6 RIGHT | |
| 441 | RTR | |
| 442 | AND C0077 /ISOLATE LOW | |
| 443 | DCA V3 /HIGH REVERSE | |
| 444 | TAD W5 /COMPLEMENT ORIGIONAL -1 | |
| 445 | RTL | |
| 446 | RTL /6 LEFT | |
| 447 | RTL | |
| 448 | AND C7700 /ISOLATE HIGH | |
| 449 | DCA V4 /REVERSE COMPLETED | |
| 450 | JMP I MES | |
| 451 | \f/FORM USED TO WRITE 12 DATA WORDS FOR BLOCK NUMBERING | |
| 452 | ||
| 453 | FORM, 0000 | |
| 454 | 0000 | |
| 455 | 0000 | |
| 456 | 0000 | |
| 457 | V1, 0000 | |
| 458 | V2, 0000 | |
| 459 | 7777 | |
| 460 | 7700 | |
| 461 | 0000 | |
| 462 | V3, 0000 | |
| 463 | V4, 0000 | |
| 464 | 0000 | |
| 465 | \f//THIS ROUTINE ALLOWS KEYBOARD INTERRUPTION | |
| 466 | /FOR LOGGING ON THE KEYBOARD, OR FOR A MAJOR | |
| 467 | /CLEAR IN THE PROGRAM. BY HITTING "CONTROL C" | |
| 468 | /A SYSTEM RESTART WILL OCCUR. | |
| 469 | ||
| 470 | CONC, TSF /IS THE PRINTER FLAG ON? | |
| 471 | JMP .+5 /NO, CHECK READER | |
| 472 | TCF /YES: RESET IT | |
| 473 | KSF /IS THE READER FLAG ON? | |
| 474 | JMP RTNS /NO: RETURN TO SEQUENCE | |
| 475 | JMP .+3 | |
| 476 | KSF | |
| 477 | HLT | |
| 478 | ||
| 479 | /OK. CHECK FOR EITHER LOG OR CONTROL C. | |
| 480 | ||
| 481 | DCA MES /SAVE C(AC) | |
| 482 | RAL /SAVE THE LINK | |
| 483 | DCA RSYC+6 /FOR LOGGING | |
| 484 | KRB /GET CHARACTER FROM KEYBOARD | |
| 485 | TLS /RETURN CHARACTER | |
| 486 | CIA /TO SEE IF | |
| 487 | TAD C203 /"CONTROL C" | |
| 488 | SNA CLA /IS IT? | |
| 489 | JMP RSYC /YES: RESYNC THE PROGRAM | |
| 490 | TAD RSYC+6 /RESTORE THE LINK | |
| 491 | RAR /FOR EXIT. | |
| 492 | TAD MES /THE AC TOO | |
| 493 | RTNS, ION /INTERRUPT ON | |
| 494 | JMP I 0 /RETURN | |
| 495 | \f | |
| 496 | *600 | |
| 497 | /RESYNC THE SYSTEM TO START | |
| 498 | ||
| 499 | RSYC, TSF /WAIT FOR FLAG | |
| 500 | JMP .-1 /ON LAST SENDOFF | |
| 501 | JMS I TYPE | |
| 502 | 2205 /RE | |
| 503 | 2331 /SY | |
| 504 | 1603 /NC | |
| 505 | 0000 /END | |
| 506 | TAD DTA /TO KILL EXISTING TAPE MOTION | |
| 507 | DTCX /NOW | |
| 508 | JMP I STX /RETURN TO START | |
| 509 | \f/WAIT FOR THE DECTAPE FLAG TO RISE | |
| 510 | ||
| 511 | STALL, 0 | |
| 512 | CLA | |
| 513 | DTRB /READ TCU "B" REGISTER | |
| 514 | SPA /ERROR? | |
| 515 | JMP ERROR /YES, DECIDE WHAT TO DO | |
| 516 | RAR /DECTAPE FLAG TO LINK | |
| 517 | SNL CLA /FLAG? | |
| 518 | JMP .-5 /NO: CONTINUE WATCH | |
| 519 | RERR, DTXA /RESET THE DECTAPE FLAG | |
| 520 | DCA ERX /CLEAR THE END TAPE FLAG | |
| 521 | JMP I STALL /GOT FLAG, EXIT | |
| 522 | ||
| 523 | /DRIVE TAPE INTO THE END ZONE, AND TURN IT | |
| 524 | /AROUND. | |
| 525 | /IF C(AC)=0400, TAPE INTO REVERSE END ZONE | |
| 526 | /IF C(AC)=0000, TAPE INTO FORWARD END ZONE | |
| 527 | ||
| 528 | TRN, 0 | |
| 529 | ISZ ERX /END ZONE IS LEGAL | |
| 530 | DCA W4 /SAVE DIRECTION | |
| 531 | TAD DT0200 /MOVE FUNCTION,GO | |
| 532 | TAD W4 /DIRECTION TO MOVE | |
| 533 | TAD DTA /DRIVE TO MOVE | |
| 534 | DTCX /CLEAR AND RESET "A" | |
| 535 | JMS I WAIT /FOR END ZONE FLAG | |
| 536 | TAD DT0610 /SEARCH, GO | |
| 537 | TAD W4 /DIRECTION TO SEARCH | |
| 538 | AND C0777 /DELETE OVERFLOW BIT | |
| 539 | TAD DTA /SET THE DECTAPE | |
| 540 | DTCX /RESET STATUS "A" | |
| 541 | DCA ERX /END ZONE NOT LEGAL NOW | |
| 542 | JMP I TRN /RETURN TO SEQUENCE | |
| 543 | C0777, 0777 | |
| 544 | ||
| 545 | \f/AN ERROR FLAG HAS BEEN SET. IN SOME CASES | |
| 546 | /END ZONE IS LEGAL, OTHERWISE, A RESTART ATTEMPT | |
| 547 | /MAY BE INITIATED. | |
| 548 | ||
| 549 | /DETERMINE WHICH FLAG SET THE DECTAPE FLAG | |
| 550 | ||
| 551 | ERROR, DCA W5 /SAVE "B" REGISTER | |
| 552 | TAD DTA /GOING TO KILL | |
| 553 | DTCX /TAPE MOTION | |
| 554 | TAD W5 /RESTORE "B" REGISTER | |
| 555 | RTL /POSITION BITS 1+2 | |
| 556 | SPA /END OF TAPE FLAG? | |
| 557 | JMP ZEOT /YES: GO TO ROUTINE | |
| 558 | SZL /MARK TRACK ERROR? | |
| 559 | JMP ZMKTK /YES: GO TO ROUTINE | |
| 560 | RTL /POSITION BITS 2+3 | |
| 561 | SPA /PARITY ERROR? | |
| 562 | JMP ZPAR /YES: GO TO PARITY ERROR ROUTINE | |
| 563 | SZL CLA /SELECT ERROR? | |
| 564 | JMP ZSEL /YES: GO TO ROUTINE | |
| 565 | JMP ZTIM /MUST BE TIMING ERROR | |
| 566 | ||
| 567 | /END OF TAPE FLAG FOUND, SEE IF IT'S LEGAL | |
| 568 | ||
| 569 | ZEOT, CLA CLL /CLEAR REMAINS | |
| 570 | TAD ERX /SWITCH | |
| 571 | SZA CLA /ERROR? | |
| 572 | JMP RERR /OK, IT'S LEGAL | |
| 573 | ||
| 574 | /NOT LEGAL END ZONE FLAG | |
| 575 | ||
| 576 | JMS I TYPE | |
| 577 | 0516 /EN | |
| 578 | 0440 /D | |
| 579 | 2401 /TA | |
| 580 | 2005 /PE | |
| 581 | 4000 / 0 | |
| 582 | JMP ZCOM | |
| 583 | ||
| 584 | /MARK TRACK ERROR | |
| 585 | ||
| 586 | ZMKTK, JMS I TYPE | |
| 587 | 1501 /MA | |
| 588 | 2213 /RK | |
| 589 | 4024 / T | |
| 590 | 2201 /RA | |
| 591 | 0313 /CK | |
| 592 | 4000 / 0 | |
| 593 | JMP ZCOM | |
| 594 | \f/PARITY ERROR | |
| 595 | ||
| 596 | ZPAR, JMS I TYPE | |
| 597 | 2001 /PA | |
| 598 | 2211 /RI | |
| 599 | 2431 /TY | |
| 600 | 4000 / 0 | |
| 601 | JMP ZCOM | |
| 602 | ||
| 603 | /SELECT ERROR | |
| 604 | ||
| 605 | ZSEL, JMS I TYPE | |
| 606 | 2305 /SE | |
| 607 | 1405 /LE | |
| 608 | 0324 /CT | |
| 609 | 4000 / 0 | |
| 610 | JMP ZCOM | |
| 611 | ||
| 612 | /TIMING ERROR | |
| 613 | ||
| 614 | ZTIM, JMS I TYPE | |
| 615 | 2411 /TI | |
| 616 | 1511 /MI | |
| 617 | 1607 /NG | |
| 618 | 4000 / 0 | |
| 619 | ||
| 620 | /TYPE "ERROR PHASE X" | |
| 621 | ||
| 622 | ZCOM, TAD PHASE /WHAT PHASE OF OPERATION | |
| 623 | TAD PFORM /WAS THE MACHINE IN | |
| 624 | DCA TFORM /WHEN ERROR OCCURED | |
| 625 | JMS I TYPE | |
| 626 | 0522 /ER | |
| 627 | 2217 /RO | |
| 628 | 2240 /R | |
| 629 | 2010 /PH | |
| 630 | 0123 /AS | |
| 631 | 0540 /E | |
| 632 | TFORM, 4060 / X | |
| 633 | 4345 /CR+LF | |
| 634 | 0000 /END | |
| 635 | JMS I TYPIN | |
| 636 | ||
| 637 | /HE CAN RESTART IF HE TYPES "RETRY" | |
| 638 | ||
| 639 | JMS I COMPAR | |
| 640 | 0322 /R | |
| 641 | 0305 /E | |
| 642 | 0324 /T | |
| 643 | 0322 /R | |
| 644 | 0331 /Y | |
| 645 | 0000 /0 | |
| 646 | JMP I IT /GUESS HE DOESN'T WISH TO TRY AGAIN | |
| 647 | \f/ATTEMPT RESTART. NOTE, "ATTEMPT" | |
| 648 | ||
| 649 | TAD PHASE /RESTART ACCORDING TO | |
| 650 | TAD ZFORM /WHICH PHASE WAS HE IN | |
| 651 | DCA .+3 | |
| 652 | JMP I .+2 | |
| 653 | ZFORM, .+2 | |
| 654 | 0000 | |
| 655 | JMP I .+5 /PHASE 0 | |
| 656 | JMP I .+5 /PHASE 1 | |
| 657 | JMP I .+5 /PHASE 2 | |
| 658 | JMP I .+5 /PHASE 3 | |
| 659 | JMP I .+5 /PHASE 4 | |
| 660 | START | |
| 661 | PSER | |
| 662 | DOBLK | |
| 663 | DBN | |
| 664 | NOP | |
| 665 | PFORM, 4060 | |
| 666 | \f | |
| 667 | ||
| 668 | ||
| 669 | /HERE STARTS THIS PROGRAM. IT WILL ASK THE | |
| 670 | /OPERATOR FOR DRIVE NUMBERS, THEN ASK HIM FOR | |
| 671 | /A DIRECTION ON WHAT TO DO WITH THE DRIVES. | |
| 672 | ||
| 673 | /THE SEQUENCE FOR MARKING A TAPE WOULD APPEAR AS: | |
| 674 | ||
| 675 | ||
| 676 | /DTA? (3 OR 1 2 3 OR 2 4 7) | |
| 677 | /DIRECT? (MARK 1215) | |
| 678 | /2277 WORDS, 0256 BLOCKS.OK? YES OR NO | |
| 679 | /(YES) | |
| 680 | ||
| 681 | ||
| 682 | /THAT DATA IN PARENTHESIS IS TYPED BY THE OPERATOR | |
| 683 | /(HE DOESN'T TYPE THE PARENTHESIS) | |
| 684 | /IF HE HAD ANSWERED NO, "DIRECT?" WOULD BE TYPED OUT. | |
| 685 | /IF THE DRIVE WAS WRONG, HE WOULD TYPE RESTART. | |
| 686 | /IF HE HAD TYPED "MARK" IN RESPONSE TO "DIRECT?" THE | |
| 687 | /TAPE WOULD BE MARKED WITH THE STANDARD PDP-8 CONFIGURATION. | |
| 688 | /IF HE HAD TYPED "MARK 384" THE TAPE WOULD | |
| 689 | /BE MARKED WITH THE STANDARD PDP-10 CONFIGURATION | |
| 690 | /NOTE: THE WORD AND BLOCK NUMBERS ARE TYPED IN OCTAL | |
| 691 | /IF A MISTAKE OCCURS ON THE OPERATORS PART (WITH REFERANCE | |
| 692 | /TO BLOCK + WORD SIZE) HE WILL BE TOLD ABOUT IT | |
| 693 | ||
| 694 | ||
| 695 | ||
| 696 | ||
| 697 | ||
| 698 | \f *1000 | |
| 699 | ||
| 700 | /MAKE A CALL FOR THE DECTAPE NUMBERS TO BE | |
| 701 | /WORKED. | |
| 702 | ||
| 703 | ||
| 704 | START0, JMS I TYPE /PRINT TITLE | |
| 705 | 4543 | |
| 706 | 4300 | |
| 707 | JMS I TYPE | |
| 708 | TEXT /DTFRMT V4A/ | |
| 709 | ||
| 710 | ||
| 711 | START, JMS I TYPE /SET UP TYPER | |
| 712 | 4543 /CR+LF | |
| 713 | 4300 /LF+END | |
| 714 | TYQU, JMS I TYPE /"DTA?" | |
| 715 | 0424 /DT | |
| 716 | 0177 /A? | |
| 717 | 4000 / END | |
| 718 | ||
| 719 | /WAIT FOR A REPLY | |
| 720 | ||
| 721 | JMS I TYPIN /GET NUMBERS | |
| 722 | TAD BADD /INITIALIZE POINTER (BFR) | |
| 723 | IAC /(BADD=BUFFER-1, SO BUMP THE AC) | |
| 724 | DCA BFR /TO START OF INPUT BUFFER | |
| 725 | DCA DCTR /INITIALIZE DTA COUNTER TO 0 | |
| 726 | DCA CRFLAG /CLEAR FLAG SO CR NOT ACCEPTIBLE | |
| 727 | CRCHK, TAD CRCOD /GET CODE FOR CAR. RETN | |
| 728 | CIA /NEGATE IT | |
| 729 | TAD I BFR /SEE IF NEXT CHAR. IN | |
| 730 | SNA /BUFFER IS CAR. RETN. | |
| 731 | JMP OKCR /YES: SEE IF C.R. LEGAL HERE | |
| 732 | DCA CRFLAG /NO: SO C.R. IS LEGAL NOW | |
| 733 | VALCHK, TAD C261 /SEE IF # IS LESS THAN | |
| 734 | CIA /ASCII 1 (261) | |
| 735 | TAD I BFR /SUBTRACT BUFFER DATA | |
| 736 | SPA CLA /IS IT LESS THAN ASII 0? | |
| 737 | JMP TYQU /YES: TELL OUTSIDE WORLD | |
| 738 | TAD C270 /NO: SEE IF GREATER THAN | |
| 739 | CMA /ASC II 8 (270) | |
| 740 | TAD I BFR /SUBTRACT BUFFER DATA | |
| 741 | SMA CLA /GREATER THAN ASCII 7? | |
| 742 | JMP TYQU /YES: TELL OUTSIDE WORLD | |
| 743 | TAD I BFR /NO: ACCEPT BUFFER | |
| 744 | RTR | |
| 745 | RTR /4 BITS RIGHT | |
| 746 | AND C7000 /ISOLATE DTA | |
| 747 | JMS REPEAT /GO CHECK FOR REPEATED DTA AND STORE # | |
| 748 | ISZ BFR /INCREMENT INPUT BUF. PTR. | |
| 749 | JMP CRCHK /GO LOOK AT NEXT CHAR. | |
| 750 | ||
| 751 | /THIS SECTION CHECKS TO SEE IF THERE HAS BEEN ANY | |
| 752 | /VALID INPUT ONCE A CARRIAGE RETURN IS SEEN | |
| 753 | OKCR, CLA /CLEAR AC | |
| 754 | TAD CRFLAG /LOAD CR FLAG; 0 MEANS NO GOOD | |
| 755 | SNA CLA | |
| 756 | JMP START /0: NO VALID INPUT; RESTART | |
| 757 | TAD DCTR /NOT 0: SO HAVE VALID INPUT | |
| 758 | TAD DBUFAD /CALCULATE END OF DTA LIST +1 | |
| 759 | DCA DBUFPT /STORE IT IN BUFFER POINTER, THEN | |
| 760 | CMA /COMPLEMENT THE AC AND | |
| 761 | DCA I DBUFPT /TERMINATE DTA LIST WITH 7777 | |
| 762 | INIT1, CLA /CLEAR AC IF COME THRU LOC IT | |
| 763 | TAD DBUFAD /AND RESET LIST POINTER | |
| 764 | DCA DBUFPT /TO START OF LIST | |
| 765 | JMS I GETDTA /GO GET A DTA NUMBER | |
| 766 | ||
| 767 | /INFORM THE OPERATOR THAT THE PROGRAM IS SET TO START | |
| 768 | /TYPE "DIRECT" AND WAIT FOR THE REPLY | |
| 769 | ||
| 770 | INIT, JMS I TYPE /MESSAGE OUT | |
| 771 | 0411 /DI | |
| 772 | 2205 /RE | |
| 773 | 0324 /CT | |
| 774 | 7740 /? | |
| 775 | 0000 /END | |
| 776 | JMS I TYPIN /WAIT FOR A REPLY | |
| 777 | JMS I COMPAR /DID HE TYPE "MARK"? | |
| 778 | 0315 /M | |
| 779 | 0301 /A | |
| 780 | 0322 /R | |
| 781 | 0313 /K | |
| 782 | 0000 /END | |
| 783 | JMP .+3 | |
| 784 | JMP I .+1 | |
| 785 | MARK /TO MARK A TAPE | |
| 786 | \f/SEE IF HE TYPED "RDR" (READ AND TYPE FIRST 12 | |
| 787 | /BLOCK NUMBERS IN REVERSE). | |
| 788 | ||
| 789 | JMS I COMPAR | |
| 790 | 0322 /R | |
| 791 | 0304 /D | |
| 792 | 0322 /R | |
| 793 | 0000 /0 | |
| 794 | JMP .+3 | |
| 795 | JMP I .+1 | |
| 796 | RDR /TYPE BLOCKS | |
| 797 | ||
| 798 | /SEE IF HE TYPED "RDF" (READ AND TYPE FIRST 12 | |
| 799 | /BLOCK NUMBERS FORWARD). | |
| 800 | ||
| 801 | JMS I COMPAR | |
| 802 | 0322 /R | |
| 803 | 0304 /D | |
| 804 | 0306 /F | |
| 805 | 0000 /0 | |
| 806 | JMP .+3 | |
| 807 | JMP I .+1 | |
| 808 | RDFA /TYPE BLOCKS | |
| 809 | ||
| 810 | /SEE IF HE TYPED "SAME" (MEANING MARK A TAPE | |
| 811 | /USING THE SAME CONSTANTS AS BEFORE). | |
| 812 | ||
| 813 | JMS I COMPAR | |
| 814 | 0323 /S | |
| 815 | 0301 /A | |
| 816 | 0315 /M | |
| 817 | 0305 /E | |
| 818 | 0000 /0 | |
| 819 | JMP .+3 | |
| 820 | JMP I .+1 | |
| 821 | RSTSM /TO MARK AS BEFORE | |
| 822 | ||
| 823 | /SEE IF HE TYPED "RESTART" | |
| 824 | ||
| 825 | JMS I COMPAR | |
| 826 | 0322 /R | |
| 827 | 0305 /E | |
| 828 | 0323 /S | |
| 829 | 0324 /T | |
| 830 | 0301 /A | |
| 831 | 0322 /R | |
| 832 | 0324 /T | |
| 833 | 0000 /0 | |
| 834 | JMS QU /MUST BE NONSENSE | |
| 835 | JMP START /START ALL OVER | |
| 836 | GETDTA, NUDTA /POINTER TO ROUTINE TO SWITCH UNITS | |
| 837 | CRFLAG, 0 /=0, CR NO GOOD; NOT 0, CR IS OK | |
| 838 | \f/ | |
| 839 | \f *1200 | |
| 840 | /MARK WAS TYPED IN, IF W1-1 IS NOT A "K",ASSUME THAT | |
| 841 | /A NUMBER WAS TYPED IN, AND VERIFY THIS. IF W1-1 IS | |
| 842 | /A "K", ASSUME STANDARD FORMAT.(W1=LAST ENTRY INTO THE BUFFER) | |
| 843 | ||
| 844 | MARK, TAD BINCON /ADDRESS OF FIRST BINARY | |
| 845 | DCA W5 /CONSTANT FOR DEC TO BIN | |
| 846 | DCA TOTAL /WILL BE BINARY EQUIVILANT | |
| 847 | ||
| 848 | /SAVE C(X1) FOR DECREMENT THROUGH BUFFER | |
| 849 | ||
| 850 | DNC, CLA CMA /DECREMENT BUFFER ADDRESS | |
| 851 | TAD W1 /ADDRESS BY 1 | |
| 852 | DCA W1 /W1=SWEEP ADDRESS | |
| 853 | ||
| 854 | /LOOK FOR END OF PROCESSING BY LOOKING FOR A "K" IN BUFFER | |
| 855 | ||
| 856 | TAD LETK /LETTER ASCII "K" | |
| 857 | CIA /SUBTRACT FROM CHARACTER | |
| 858 | TAD I W1 /IN BUFFER | |
| 859 | SNA CLA /EQUAL? | |
| 860 | JMP DIV3 /YES: SEE IF DIVISIBLE BY 3 | |
| 861 | ||
| 862 | /VERIFY THIS CHARACTER AS BEING OF DECIMAL ORIGIN | |
| 863 | ||
| 864 | TAD C260 /ASCII FOR 0 | |
| 865 | CIA /TO SEE IF CHARACTER | |
| 866 | TAD I W1 /IS LESS THAN 260 | |
| 867 | SPA CLA /IS IT? | |
| 868 | JMP I QU1 /YES: NOT DECIMAL CHARACTER | |
| 869 | TAD C271 /ASCII FOR 9 | |
| 870 | CMA /TO SEE IF GREATER THAN | |
| 871 | TAD I W1 /9 | |
| 872 | SMA CLA /IS IT? | |
| 873 | JMP I QU1 /NOT A DECIMAL CHARACTER | |
| 874 | \f/CHARACTER IS DECIMAL. NOW CONVERT IT TO BINARY | |
| 875 | /REMEMBER POSITION OF CHARACTER IN BUFFER MAY BE | |
| 876 | /10,100,1000. | |
| 877 | ||
| 878 | TAD I W1 /ISOLATE THE NUMBER | |
| 879 | AND C0017 /FOR PROPER CONVERSION | |
| 880 | SNA /IF 0, NO BINARY CONVERSION NEEDED | |
| 881 | JMP IBS /YES: 0: INCREMENT BINARY CONVERSION | |
| 882 | ||
| 883 | /NOT 0, SET UP CONVERSION LOOP | |
| 884 | ||
| 885 | CLL CIA /NUMBER OF ADDITIONS | |
| 886 | DCA W4 /TO NEGATIVE FOR ISZ | |
| 887 | TAD I W5 /BINARY POSITION TO C(ACC) | |
| 888 | TAD TOTAL /ADD TO PRESENT TOTAL | |
| 889 | SZL /CHECK ON TO MANY WORDS | |
| 890 | JMP I QU2 /TO MANY WORDS CALLED FOR | |
| 891 | DCA TOTAL /KEEP RUNNING SUM | |
| 892 | ISZ W4 /LAST ADDITION? | |
| 893 | JMP .-6 /NO: ADD AGAIN | |
| 894 | ||
| 895 | /FINAL ADDITION FOR THIS POSITION COMPLETED | |
| 896 | ||
| 897 | IBS, ISZ W5 /NEXT POSITION | |
| 898 | JMP DNC /DO NEXT CHARACTER | |
| 899 | ||
| 900 | /LAST CHARACTER COMPLETED. SEE IF DIVISIBLE BY 3 | |
| 901 | /IF NOT A NORMAL INPUT | |
| 902 | ||
| 903 | DIV3, TAD TOTAL /GET TOTAL WORDS | |
| 904 | SNA /IF TOTAL 0, NORMAL INPUT | |
| 905 | TAD C201 /129 OCT. THIS TEST REDUNDANT | |
| 906 | TAD C0017 /ADD CONSTANT 15 TO TOTAL | |
| 907 | DCA TOTAL /FOR FUTURE CONSIDERATIONS | |
| 908 | DCA VAR1 /# OF WORDS/3 FOR MARK TRACK WRITING | |
| 909 | TAD TOTAL /RESTORE IN THE ACC | |
| 910 | CLL /TO DIVIDE BY 3, LINK KEEPS OVERFLOW | |
| 911 | TAD M3 /SUBTRACT 3 | |
| 912 | ISZ VAR1 /ON EACH DIVISION, KEEP RUNNING SUM | |
| 913 | SZA /IF AC = 0,NO REMAINDER | |
| 914 | SNL /WHEN LINC GOES TO 0, DIVISION ENDED | |
| 915 | SKP /NOW SEE IF IT DIVIDED EVENLY | |
| 916 | JMP .-6 /SUBTRACT 3 MORE | |
| 917 | SZA CLA /IF 0,OK. OTHERWISE ERROR | |
| 918 | JMP I QU4 /NOT DIVISIBLE BY 3 | |
| 919 | ||
| 920 | /CORRECT "VAR1" ( THE NUMBER OF WORDS/3) FOR THE +15 | |
| 921 | /ADDED JUST ABOVE AND AN INHERANT +2 DUE TO MARK TRACK | |
| 922 | /CONFIGURATION TO BE WRITTEN. | |
| 923 | ||
| 924 | TAD M7 /SUBTRACT 7 FROM PHONY SETUP | |
| 925 | TAD VAR1 /GIVING THE NUMBER OF TIMES | |
| 926 | CIA /TO BE USED LATER IN A ISZ | |
| 927 | DCA VAR1 /DATA MARK WILL BE WRITTEN | |
| 928 | \f | |
| 929 | /COMPUTE A VALUE FOR TOTAL NUMBER OF BLOCKS | |
| 930 | /RECORD SIZE + 15 INTO 636160 OCT. | |
| 931 | ||
| 932 | TAD C7714 /EXTENDED 64 VALUE. SETS AC#2 | |
| 933 | DCA W1 /SET FOR 640000 | |
| 934 | JMS I FORM10 /PATCH TO CHECK FOR STD.10 FORMAT | |
| 935 | TAD C1620 /VERNIER ADJUSTMENT FOR FORMULA | |
| 936 | CLL /ACC#2 CARRY FUNCTION | |
| 937 | TAD TOTAL /WORD COUNT | |
| 938 | ISZ BLOCKS /+1 TO BLOCK COUNT | |
| 939 | SKP | |
| 940 | JMP I QU3 /TO MANY BLOCKS CALLED FOR | |
| 941 | SNL /CARRY INTO ACC#2? | |
| 942 | JMP .-5 /NO: CONTINUE COUNT | |
| 943 | ISZ W1 /YES: FULLY DIVIDED? | |
| 944 | JMP .-10 /NO: CONTINUE PROCESS | |
| 945 | CLA CLL /C(ACC)+ C(L)=0 | |
| 946 | F10RTN, TAD BLOCKS /FOR MARK TRACK (COME HERE FR F10PAT IF 10 FRMT) | |
| 947 | CMA /WRITING | |
| 948 | DCA VAR2 /SEE MARK WRITE | |
| 949 | ||
| 950 | /VALUES FOR BLOCK AND RECORD SIZE HAVE BEEN | |
| 951 | /COMPUTED. TELL OUTSIDE WORLD AND GET THE OK. | |
| 952 | ||
| 953 | TAD TOTAL /SUBTRACT 15 FROM TOTAL | |
| 954 | TAD C7761 /WORDS FOOLING OPERATOR | |
| 955 | DCA TOTAL /CORRECTED FOR TAPE WRITING | |
| 956 | TAD TOTAL /FOR OCTAL TYPEOUT | |
| 957 | JMS I TYOCT /TYPE OCTAL WORDS | |
| 958 | JMS I TYPE /TYPE MESSAGE | |
| 959 | 4027 / W | |
| 960 | 1722 /OR | |
| 961 | 0423 /DS | |
| 962 | 5400 /, END | |
| 963 | TAD BLOCKS /TYPE OUT BLOCK #S | |
| 964 | IAC /TO FOOL THE OPERATOR | |
| 965 | JMS I TYOCT /IN OCTAL | |
| 966 | JMS I TYPE /TYPE MESSAGES | |
| 967 | 4002 / B | |
| 968 | 1417 /LO | |
| 969 | 0313 /CK | |
| 970 | 2356 /S. | |
| 971 | 1713 /OK | |
| 972 | 7733 /?( | |
| 973 | 3105 /YE | |
| 974 | 2340 /S | |
| 975 | 1722 /OR | |
| 976 | 4016 / N | |
| 977 | 1735 /O) | |
| 978 | 4543 /CR+LF | |
| 979 | 0000 /END | |
| 980 | JMS I TYPIN /WAIT FOR REPLY | |
| 981 | \f/SEE IF A YES OR NO ANSWER WAS GIVEN | |
| 982 | ||
| 983 | JMS I COMPAR | |
| 984 | 0331 /Y | |
| 985 | 0305 /E | |
| 986 | 0323 /S | |
| 987 | 0000 /END | |
| 988 | JMP I IT | |
| 989 | ||
| 990 | /SEE IF THE DRIVE IS OK | |
| 991 | ||
| 992 | RSTSM, TAD DT0060 /GIVE WRTM, NO GO | |
| 993 | TAD DTA /AND DTA # | |
| 994 | DTCX /ORDER EXECUTE | |
| 995 | DCA W1 /STALL FUNCTION | |
| 996 | CDTRD, DTRB /READ STATUS "B" | |
| 997 | SMA CLA /ERROR? | |
| 998 | JMP CIZ /NO: TIME OUT STALL | |
| 999 | JMS I TYPE /YES: INCORRECT SETUP | |
| 1000 | 2305 /SE | |
| 1001 | 2425 /TU | |
| 1002 | 2077 /P | |
| 1003 | 0000 /END | |
| 1004 | JMP I .+1 | |
| 1005 | START | |
| 1006 | ||
| 1007 | /STALL FOR A WHILE FOR THE INTERRUPT | |
| 1008 | ||
| 1009 | CIZ, ISZ W1 /ONE ROUND'S WORTH | |
| 1010 | JMP CDTRD /OF ISZ | |
| 1011 | JMP I .+1 | |
| 1012 | STMK /OK, GO DO THE MARK TRACK | |
| 1013 | FORM10, F10PAT | |
| 1014 | ||
| 1015 | \f *1400 | |
| 1016 | /SET THE TAPE INTO MOTION. ALL VARIABLES ARE | |
| 1017 | /SET. FROM THIS POINT ON, CONTROL IS EXECUTED | |
| 1018 | /VIA THE WCO INTERRUPT | |
| 1019 | ||
| 1020 | /CLEAR OUT STATUS "A" AND RELOAD IT WITH CONTINUOUS | |
| 1021 | /WRITE TIMING AND MARK TRACK COMMAND | |
| 1022 | ||
| 1023 | STMK, TAD DT0360 /FWD, CONT, T+M,GO,INT | |
| 1024 | TAD DTA /ADD IN THE DTA | |
| 1025 | DTCX /CLEAR FLAGS START MOTION | |
| 1026 | DCA PHASE /FOR ERROR ROUTINE | |
| 1027 | TAD VAR2 /TO MAKE A RESTART FOR THE "SAME" | |
| 1028 | DCA W6 /OPTION POSSIBLE | |
| 1029 | ||
| 1030 | /WRITE END ZONE. WRITE ABOUT 10' OF THIS | |
| 1031 | /CONFIGURATION. 4044 | |
| 1032 | / 0440 ON TAPE AS | |
| 1033 | / 4404 (5555) OCTAL. | |
| 1034 | ||
| 1035 | DCA W1 /CLEAR COUNTER, 7777= ABOUT 10' | |
| 1036 | CEZ, TAD REZ /LOAD ADDRESS OF DATA | |
| 1037 | DCA I CA /TO BE WRITTEN INTO THE CA | |
| 1038 | TAD M3 /LOAD # WORDS TO BE WRITTEN INTO | |
| 1039 | DCA I WC /WC LOCATION | |
| 1040 | ||
| 1041 | /WAIT FOR INTERRUPT, TEST FOR END OF | |
| 1042 | /END ZONE WRITING. | |
| 1043 | ||
| 1044 | JMS I WAIT /FOR INTERRUPT | |
| 1045 | ISZ W1 /END OF FOOTAGE? | |
| 1046 | JMP CEZ /NOT END FOOTAGE, CONTINUE | |
| 1047 | /OK, WRITE INTERBLOCK SYNC | |
| 1048 | ||
| 1049 | /WRITE INTERBLOCK SYNC. SINCE THIS CONFIGURATION | |
| 1050 | /ACT AS A NOP TO THE TCU, AT THE BEGINING OF | |
| 1051 | /TAPE, MORE LENGTH OF THIS IS NEEDED FOR TURN AROUND | |
| 1052 | /TIME TO GUARANTEE BLOCK 0000 TO THE LIBRARY SYSTEM | |
| 1053 | /THEREFORE AT THE BEGINING OF TAPE ONLY, WRITE SEVERAL | |
| 1054 | /INTERBLOCK ZONES | |
| 1055 | ||
| 1056 | TAD M144 /NUMBER OF TIMES TO | |
| 1057 | DCA W1 /WRITE INTERBLOCK SYNC | |
| 1058 | JMS INBLSY /WRITE 1 INTERBLOCK SYNC | |
| 1059 | ISZ W1 /CONFIGURATION, TEST END | |
| 1060 | JMP .-2 /NOT TOTAL FOOTAGE. WRITE AGAIN | |
| 1061 | JMP WDZ /COMPLETED, GO ON | |
| 1062 | \f/AT NORMAL RETURN, WRITE ONLY ONE INTERBLOCK SYNC | |
| 1063 | /CONFIGURATION. APPEARS AS 0404 | |
| 1064 | / 0404 ON TAPE AS | |
| 1065 | / 0404 2525 OCTAL | |
| 1066 | ||
| 1067 | INBLSY, 0 | |
| 1068 | TAD IBZ /COUNTER AND WORD | |
| 1069 | DCA I CA /COUNT WITH KEYS | |
| 1070 | TAD M3 /FOR CONTROL | |
| 1071 | DCA I WC | |
| 1072 | TAD VAR1 /RESET THE WORDS | |
| 1073 | DCA W5 /PER BLOCK COUNTER | |
| 1074 | ||
| 1075 | /WAIT FOR INTERRUPT, RETURN TO SEQUENCE | |
| 1076 | ||
| 1077 | JMS I WAIT /FOR INTERRUPT | |
| 1078 | JMP I INBLSY | |
| 1079 | ||
| 1080 | ||
| 1081 | /WRITE FORWARD BLOCK MARK AND REVERSE GUARD | |
| 1082 | /THREE WORDS 0404 | |
| 1083 | / 4004 ON TAPE AS | |
| 1084 | / 4040 2632 OCTAL | |
| 1085 | ||
| 1086 | WDZ, TAD FBM /ADDRESS OF PATTERN | |
| 1087 | DCA I CA /TO CURRENT ADDRESS | |
| 1088 | TAD M3 /NUMBER OF WORDS | |
| 1089 | DCA I WC /TO WORD COUNTER | |
| 1090 | JMS I WAIT /DROP THROUGH AFTER WRITE | |
| 1091 | ||
| 1092 | ||
| 1093 | /WRITE LOCK MARK, REVERSE CKSUM, REVERSE FINAL,REV PREFINAL | |
| 1094 | /SIX WORDS 1. 0040 4. 0040 | |
| 1095 | / 2. 0000 5. 0000 ON TAPE OCTAL | |
| 1096 | / 3. 4000 6. 4000 10101010 | |
| 1097 | ||
| 1098 | TAD WLMRF /ADDRESS OF PATTERN | |
| 1099 | DCA I CA /TO CURRENT ADDRESS | |
| 1100 | TAD M6 /NUMBER OF WORDS | |
| 1101 | DCA I WC /TO WORD COUNTER | |
| 1102 | JMS I WAIT /DROP THROUGH AFTER WRITE | |
| 1103 | ||
| 1104 | ||
| 1105 | / WRITE THE DATA TRACK. SINCE THE LENGTH OF EACH | |
| 1106 | /RECORD IS A VARIABLE, "VAR1" KEEPS TRACK OF THE | |
| 1107 | /NUMBER OF TIMES THIS CONFIGURATION WILL BE WRITTEN | |
| 1108 | /"VAR1" WAS DECIDED FROM ABOVE IN THE FORMULA | |
| 1109 | /TRANSLATION SECTION | |
| 1110 | /THREE WORDS 4440 | |
| 1111 | / 0044 ON TAPE AS | |
| 1112 | / 4000 7070 OCTAL | |
| 1113 | DTRK, TAD DZ /LOAD ADDRESS OF THE DATA | |
| 1114 | DCA I CA /CONFIGURATION INTO CA | |
| 1115 | TAD M3 /LOAD # WORDS | |
| 1116 | DCA I WC /INTO WORD COUNT | |
| 1117 | \f/WRITE ONE SET TEST "VAR1" FOR LAST SET | |
| 1118 | ||
| 1119 | JMS I WAIT /ONE CONFIGURATION | |
| 1120 | ISZ W5 /LAST? | |
| 1121 | JMP DTRK /NOW WRITE DATA MARK TRACK AGAIN | |
| 1122 | ||
| 1123 | / MARK TRACK CODE FOR DATA IS COMPLETE. NOW WRITE | |
| 1124 | /PREFINAL, FINAL, CHECKSUM AND REVERSE CHECKSUM. | |
| 1125 | /SIX WORDS 1 4440 4 4440 | |
| 1126 | / 2 4444 5 4444 ON TAPE AS | |
| 1127 | / 3 4044 6 4044 73737373 OCTAL | |
| 1128 | ||
| 1129 | TAD FEZ /LOAD ADDRESS OF | |
| 1130 | DCA I CA /DATA CONFIGURATION INTO CA | |
| 1131 | TAD M6 /LOAD # WORDS | |
| 1132 | DCA I WC /INTO WORD COUNT | |
| 1133 | JMS I WAIT /TILL COMPLETED WRITE | |
| 1134 | ||
| 1135 | ||
| 1136 | ||
| 1137 | /WRITE GUARD, REVERSE BLOCK | |
| 1138 | /THREE WORDS 4040 | |
| 1139 | / 0440 ON TAPE AS | |
| 1140 | / 0404 5145 OCTAL | |
| 1141 | ||
| 1142 | TAD GRZ /DATA ADDRESS TO | |
| 1143 | DCA I CA /THE CA | |
| 1144 | TAD M3 /NUMBER OF WORDS | |
| 1145 | DCA I WC /TO WORD COUNT | |
| 1146 | JMS I WAIT /TILL COMPLETE | |
| 1147 | ||
| 1148 | ||
| 1149 | ||
| 1150 | /THIS COMPLETE SET OF DATA TRANSFERES | |
| 1151 | /COMPLETES ONE BLOCK ON TAPE. SINCE THE | |
| 1152 | /NUMBER OF BLOCKS IS VARIABLE, "VAR2" IS | |
| 1153 | /USED TO RECYCLE. "VAR2" WAS SET UP ABOVE IN | |
| 1154 | /THE FORMULA TRANSLATION SECTION | |
| 1155 | ||
| 1156 | JMS INBLSY /WRITE INTERBLOCK SYNC | |
| 1157 | ISZ W6 /TOTAL NUMBER OF BLOCKS | |
| 1158 | JMP WDZ /WRITTEN? NO: | |
| 1159 | ||
| 1160 | ||
| 1161 | \f/ALL DATA BLOCKS HAVE BEEN WRITTEN. | |
| 1162 | /NOW PROVIDE A BUFFER ZONE OF INTERBLOCK SYNC AT THE END | |
| 1163 | /OF TAPE AS AT THE START OF TAPE | |
| 1164 | ||
| 1165 | TAD M144 /ABOUT TWO BLOCKS(STANDARD) WORTH | |
| 1166 | DCA W1 /ABOUT 100 TIMES | |
| 1167 | JMS INBLSY /WRITE ONE PATTERN | |
| 1168 | ISZ W1 /AT END YET? | |
| 1169 | JMP .-2 /NO CONTINUE WRITING INTERBLOCK SYNC | |
| 1170 | ||
| 1171 | /COMPLETED BLOCK WRITING | |
| 1172 | /WRITE ANOTHER 10' OF END ZONE (FORWARD) | |
| 1173 | /BEFORE LOADING BLOCK NUMBERS. | |
| 1174 | /THREE WORDS 0400 | |
| 1175 | / 4004 ON TAPE AS | |
| 1176 | / 0040 2222 OCTAL | |
| 1177 | ||
| 1178 | DCA W1 /ISZ=10 FEET | |
| 1179 | WEZF, TAD EZM /LOAD ADDRESS OF DATA | |
| 1180 | DCA I CA /INTO CA | |
| 1181 | TAD M3 /NUMBER OF WORDS | |
| 1182 | DCA I WC /WORD COUNT | |
| 1183 | ||
| 1184 | /WRITE 1 SET, CHECK END OF 10'. | |
| 1185 | ||
| 1186 | JMS I WAIT /TILL COMPLETE | |
| 1187 | ISZ W1 /END OF FOOTAGE? | |
| 1188 | JMP WEZF /NO, CONTINUE WITH END ZONE | |
| 1189 | JMP I .+1 /GO AND START BLOCK NUMBER | |
| 1190 | MWTM /SEQUENCING | |
| 1191 | \f/THESE ARE THE DATA CONFIGURATIONS FOR THE MARK TRACK | |
| 1192 | ||
| 1193 | ||
| 1194 | /REVERSE END ZONE | |
| 1195 | ||
| 1196 | REZ, . | |
| 1197 | 4044 /ON TAPE AS 5555 (OCT) | |
| 1198 | 0440 | |
| 1199 | 4404 | |
| 1200 | ||
| 1201 | /INTERBLOCK SYNC | |
| 1202 | ||
| 1203 | IBZ, . | |
| 1204 | 0404 /ON TAPE AS 2525 (OCT) | |
| 1205 | 0404 | |
| 1206 | 0404 | |
| 1207 | ||
| 1208 | /FORWARD BLOCK MARK AND REVERSE GUARD | |
| 1209 | ||
| 1210 | FBM, . | |
| 1211 | 0404 /ON TAPE AS 2632 (OCT) | |
| 1212 | 4004 | |
| 1213 | 4040 | |
| 1214 | ||
| 1215 | /LOCK MARK, REVERSE CHECKSUM, REVERSE FINAL | |
| 1216 | /AND REVERSE PREFINAL | |
| 1217 | ||
| 1218 | WLMRF, . | |
| 1219 | 0040 /ON TAPE AS 10101010 (OCT) | |
| 1220 | 0000 | |
| 1221 | 4000 | |
| 1222 | 0040 | |
| 1223 | 0000 | |
| 1224 | 4000 | |
| 1225 | ||
| 1226 | /DATA MARK | |
| 1227 | ||
| 1228 | DZ, . | |
| 1229 | 4440 /ON TAPE AS 7070 (OCT) | |
| 1230 | 0044 | |
| 1231 | 4000 | |
| 1232 | ||
| 1233 | /PREFINAL, FINAL, FWD CHECKSUM, AND REVERSE LOCK | |
| 1234 | ||
| 1235 | FEZ, . | |
| 1236 | 4440 /ON TAPE AS 73737373 (OCT) | |
| 1237 | 4444 | |
| 1238 | 4044 | |
| 1239 | 4440 | |
| 1240 | 4444 | |
| 1241 | 4044 | |
| 1242 | \f/FORWARD GUARD AND REVERSE BLOCK NUMBER | |
| 1243 | ||
| 1244 | GRZ, . | |
| 1245 | 4040 /ON TAPE AS 5145 (OCT) | |
| 1246 | 0440 | |
| 1247 | 0404 | |
| 1248 | ||
| 1249 | /FORWARD END ZONE | |
| 1250 | ||
| 1251 | EZM, . | |
| 1252 | 0400 /ON TAPE AS 2222 (OCT) | |
| 1253 | 4004 | |
| 1254 | 0040 | |
| 1255 | /SUBROUTINE TO SEE IF USER TYPED MARK 384 | |
| 1256 | /TO SPECIFY STANDARD PDP-10 FORMAT | |
| 1257 | F10PAT, 0 | |
| 1258 | DCA BLOCKS /CLEAR LOC. BLOCKS IN CASE NOT 10-FORMAT | |
| 1259 | TAD TOTAL /AND GET NUMBER TYPED BY USER | |
| 1260 | TAD M617 /WAS IT 384? | |
| 1261 | SZA CLA | |
| 1262 | JMP I F10PAT /NO-RETURN | |
| 1263 | DCA W1 /YES-CLEAR W1 FOR WAIT LOOP | |
| 1264 | TAD C1101 /AND ADJUST BLOCK TOTAL FOR | |
| 1265 | DCA BLOCKS /1102(OCTAL) BLOCKS. | |
| 1266 | JMP I .+1 | |
| 1267 | F10BAK, F10RTN | |
| 1268 | M617, -617 | |
| 1269 | C1101, 1101 | |
| 1270 | \f | |
| 1271 | *1600 | |
| 1272 | /THE MARK TRACK HAS BEEN WRITTEN, AND TAPE IS | |
| 1273 | /MOVING FORWARD IN THE FORWARD END ZONE. STOP | |
| 1274 | /THE TAPE AND SEE IF THERE ARE ANY TAPES LEFT TO | |
| 1275 | /MARK--IF SO GO DO THEM, ELSE TELL OPERATOR TO THROW THE | |
| 1276 | /"NORMAL/WRTM/RDTM" SWITCH TO "NORMAL" | |
| 1277 | /HE WILL THEN CONTINUE AFTER THIS ACTION | |
| 1278 | ||
| 1279 | /KILL WRITE, STOP TAPE | |
| 1280 | ||
| 1281 | MWTM, TAD DT0070 /STOP TAPE WITH SELECT ERROR | |
| 1282 | TAD DTA /LOAD DTA INTO ORDER | |
| 1283 | DTCX /EXECUTE THE ABOVE | |
| 1284 | JMS NUDTA /ANY MORE DTAS TO MARK? | |
| 1285 | JMP I DOMARK /YES: GO MARK THEM | |
| 1286 | ||
| 1287 | /MESSAGE TO OPERATOR | |
| 1288 | ||
| 1289 | JMS I TYPE /NO: BACK TO FIRST DTA AND CONTINUE | |
| 1290 | 2305 /SE | |
| 1291 | 2440 /T | |
| 1292 | 2327 /SW | |
| 1293 | 1124 /IT | |
| 1294 | 0310 /CH | |
| 1295 | 4024 / T | |
| 1296 | 1740 /O | |
| 1297 | 1617 /NO | |
| 1298 | 2215 /RM | |
| 1299 | 0114 /AL | |
| 1300 | 0000 /END | |
| 1301 | JMS I TYPIN /WAIT FOR CR | |
| 1302 | ||
| 1303 | /REVERSE TAPE FOR A FEW SECONDS TO GUARANTEE | |
| 1304 | /BLOCK MARK SECT WILL BE UNDER THE HEAD | |
| 1305 | ||
| 1306 | PSER, TAD DT0600 /REVERSE, MOVE, GO | |
| 1307 | TAD DTA /ADD DTA TO ORDER | |
| 1308 | DTCX /CLEAR TCU,GET MOVING IN REVERSE | |
| 1309 | ||
| 1310 | /STALL A FEW SECONDS | |
| 1311 | ||
| 1312 | TAD M300 /AROUND 2 SECONDS | |
| 1313 | DCA W2 /MAJOR STALL | |
| 1314 | MSTALL, ISZ W1 /MINOR STALL | |
| 1315 | JMP .-1 /LOOP MINOR | |
| 1316 | DTSF | |
| 1317 | SKP | |
| 1318 | JMP PSER | |
| 1319 | ISZ W2 /MAJOR STALL | |
| 1320 | JMP MSTALL /LOOP MAJOR | |
| 1321 | \f/TAPE OUT ON MARK TRACK NOW, TURN AND GET IT | |
| 1322 | /MOVING FORWARD. AT THIS POINT, THE LAST REVERSE | |
| 1323 | /BLOCK NUMBER WILL BE WRITTEN UNTILL END ZONE IS | |
| 1324 | /REACHED. THEREFORE, WHEN THE BOUNCE OUT OF THE END | |
| 1325 | /ZONE TAKES PLACE, THE SYSTEM WILL BE ABLE TO SYNC ON | |
| 1326 | /THE REVERSE BLOCK NUMBER TO WRITE THE REST OF | |
| 1327 | /THE BLOCK NUMBERS AND KNOWN GOOD DATA IN REVERSE. | |
| 1328 | /THIS PROCESS WILL ELIMINATE A NEEDLESS REWIND AND | |
| 1329 | /KEEP THE ENTIRE PROCESS TO TWO COMPLETE PASSES | |
| 1330 | ||
| 1331 | /WRITE LAST REVERSE BLOCK NUMBER GOING FORWARD | |
| 1332 | ||
| 1333 | TAD RZ | |
| 1334 | DCA I CA | |
| 1335 | TAD DT0210 /FORWARD, SEARCH, GO | |
| 1336 | TAD DTA /ADD IN THE DTA | |
| 1337 | DTCX /CLEAR STATUS "A" AND RELOAD IT | |
| 1338 | TAD C1 /PHASE 1 ERROR | |
| 1339 | DCA PHASE /FOR ERROR ROUTINE | |
| 1340 | ||
| 1341 | /WAIT HERE FOR DECTAPE FLAG. CHECK ALSO FOR ERRORS | |
| 1342 | /SET BLOCK NUMBER (REVERSE) INTO FORM | |
| 1343 | ||
| 1344 | TAD BLOCKS /INTO AC WITH LAST BLOCK NUMBER | |
| 1345 | JMS I MESS /CONVERT BLOCK NUMBER FOR TAPE | |
| 1346 | ||
| 1347 | /INTERRUPTED? ERROR? | |
| 1348 | ||
| 1349 | DTRB /READ STATUS "B" | |
| 1350 | RAR /DECTAPE FLAG TO LINK | |
| 1351 | SNL CLA /FLAG SET? | |
| 1352 | JMP .-3 /NO: CONTINUE WAIT | |
| 1353 | ||
| 1354 | /BLOCK FOUND. SWITCH TO READ DATA WITH WC ONE LESS THAN | |
| 1355 | /NUMBER OF WORDS TO BE READ. READ TILL WC=0 | |
| 1356 | ||
| 1357 | TAD DT0130 /TO SET STATUS "A" INTO | |
| 1358 | RCYBR, DTXA /THE READ DATA MODE | |
| 1359 | CLA CMA /SUBTRACT 1 FROM TOTAL | |
| 1360 | TAD TOTAL /GIVING TOTAL-1 (HO HO) | |
| 1361 | CMA /INVERT FOR ISZ | |
| 1362 | DCA I WC /SET WC | |
| 1363 | TAD C4 /NOP | |
| 1364 | DCA I CA /JIMMIED TO DO NOTHING | |
| 1365 | DTRB /READ "B" REGISTER | |
| 1366 | AND C1000 /ISOLATE END ZONE BIT | |
| 1367 | SZA CLA /END ZONE? | |
| 1368 | JMP I GDBLK /YES: GO AND WRITE THE BLOCK NUMBERS | |
| 1369 | TAD I WC /WAIT TILL WORD COUNT ZERO | |
| 1370 | SZA CLA /EQUAL TO ZERO? | |
| 1371 | JMP .-10 /NO: LOOP AGAIN | |
| 1372 | \f/END OF BLOCK FOUND. WRITE JUNK AND REVERSE BLOCK NUMBER | |
| 1373 | ||
| 1374 | TAD M14 /12 WORDS TO BE WRITTEN | |
| 1375 | DCA I WC /TO WORD COUNT REG. | |
| 1376 | TAD FORMB /FORM TO CA | |
| 1377 | DCA I CA /OF NUMBERING FORM | |
| 1378 | TAD DT0070 /SWITCH TO WRITE ALL | |
| 1379 | DTXA /MODE. | |
| 1380 | ||
| 1381 | /LOOK FOR THE DECTAPE FLAG INDICATING ANOTHER RECYCLE | |
| 1382 | ||
| 1383 | DTRB /NO: GET "B" AGAIN | |
| 1384 | RAR /FLAG TO LINK | |
| 1385 | SNL CLA /FLAG SET? | |
| 1386 | JMP .-3 /NO: BE PATIENT. HAST NOT. | |
| 1387 | TAD DT0070 /TO SWITCH TO READ DATA | |
| 1388 | JMP RCYBR | |
| 1389 | GDBLK, DOBLK | |
| 1390 | DOMARK, STMK /POINTER TO START OF MARK ROUTINE | |
| 1391 | ||
| 1392 | /SUBROUTINE TO GET NEXT DTA UNIT # FROM INPUT LIST OR | |
| 1393 | /RECYCLE TO FIRST UNIT IF ALL HAVE BEEN PROCESSED UP TO | |
| 1394 | /THIS POINT--CALL SEQUENCE | |
| 1395 | / JMS NUDTA /CALL THE ROUTINE | |
| 1396 | / (RETN1) /RETURNS HERE IF MORE DTAS TO PROCESS | |
| 1397 | / (RETN2) /RETURNS HERE IF END OF LIST | |
| 1398 | /END OF LIST MEANS RESET TO FIRST AND RETURN TO (RETN2) | |
| 1399 | /RETURN IS WITH DTA SET TO NEW VALUE AND AC=0 | |
| 1400 | ||
| 1401 | NUDTA, 0 | |
| 1402 | TAD I LSTPT /GET CURRENT VALUE OF DTA LIST PTR | |
| 1403 | DCA TBUFPT /STORE IT AS TEM. BUF. PTR. | |
| 1404 | TAD I TBUFPT /GET A DTA # FROM THE LIST | |
| 1405 | AND C0007 /ISOLATE LOW ORDER DIGIT | |
| 1406 | SZA CLA /IS IT 7777? | |
| 1407 | JMP LSTEND /YES: END OF LIST | |
| 1408 | TAD I TBUFPT /NO: GET IT BACK | |
| 1409 | DCA DTA /AND STORE AS NEW DTA # | |
| 1410 | ISZ I LSTPT /INCREMENT LIST POINTER | |
| 1411 | JMP I NUDTA /RETURN | |
| 1412 | /COMES HERE AT END OF LIST TO RESET PTRS AND RETN TO CALL+2 | |
| 1413 | LSTEND, ISZ NUDTA /INCREMENT RETURN POINTER | |
| 1414 | TAD I STRTPT /GET ADR. OF START OF LIST | |
| 1415 | DCA I LSTPT /STORE TO RE-INITIALIZE LIST PTR. | |
| 1416 | JMP NUDTA+1 /GO GET FIRST DTA # AND RETURN | |
| 1417 | ||
| 1418 | STRTPT, DBUFAD /POINTER TO START OF DTA LIST | |
| 1419 | TBUFPT, 0 /TEM. STORAGE FOR BUF. PTR. | |
| 1420 | LSTPT, DBUFPT /POINTER TO CURRENT VALUE OF DTA LIST PTR | |
| 1421 | DTABUF, 0 /START OF DTA # LIST - MAX. 9 WORDS | |
| 1422 | RZ, .+1 | |
| 1423 | 0 | |
| 1424 | /SUBROUTINE TO CHECK FOR REPEATED DTA NUMBERS | |
| 1425 | /DTA # TO COMPARE TO LIST IS IN AC ON ENTRY--THIS | |
| 1426 | /ROUTINE STORES THE DTA # IF IT IS NEW AND IGNORES IT | |
| 1427 | /IF IT IS NOT-CALL BY JMS REPEAT WITH DTA # IN AC | |
| 1428 | REPEAT, 0 | |
| 1429 | DCA DNUM /TEM STORAGE FOR NEW DTA # | |
| 1430 | TAD DBUFAD /INITIALIZE POINTER (DBUFPT) | |
| 1431 | DCA DBUFPT /TO START OF DTA LIST | |
| 1432 | TAD DCTR /LOAD NUM. OF DTAS STORED | |
| 1433 | CMA /COMPLEMENT IT | |
| 1434 | DCA COMCTR /STORE IN COMPARE COUNTER | |
| 1435 | COMCHK, ISZ COMCTR /DONE WITH ALL COMPARES? | |
| 1436 | JMP DOCOMP /NO: GO DO COMPARE | |
| 1437 | TAD DNUM /YES: STORE NEW DTA# | |
| 1438 | DCA I DBUFPT /AT END OF LIST | |
| 1439 | ISZ DCTR /INCR. # OF DTAS STORED | |
| 1440 | JMP I REPEAT /RETURN | |
| 1441 | ||
| 1442 | /THIS SECTION DOES THE ACTUAL COMPARISON BETWEEN | |
| 1443 | /THE DTA# PASSED TO THE ROUTINE AND A NUMBER ON THE LIST | |
| 1444 | ||
| 1445 | DOCOMP, TAD I DBUFPT /GET NEXT DTA NUMBER FROM LIST | |
| 1446 | CIA /NEGATE IT | |
| 1447 | TAD DNUM /ADD IN DTA NUMBER PASSED | |
| 1448 | SNA CLA /ARE THEY THE SAME? | |
| 1449 | JMP I REPEAT /YES: RETURN | |
| 1450 | ISZ DBUFPT /NO: INCREMENT LIST POINTER | |
| 1451 | JMP COMCHK /SEE IF DONE ALL COMPARES | |
| 1452 | / | |
| 1453 | / | |
| 1454 | COMCTR, 0 /COUNTER FOR # OF LIST COMPARISONS TO BE DONE | |
| 1455 | DCTR, 0 /COUNTER FOR # OF DTAS IN LIST | |
| 1456 | DBUFAD, DTABUF /START OF DTA NUM. LIST | |
| 1457 | DNUM, 0 /TEM STORAGE FOR DTA # | |
| 1458 | / | |
| 1459 | \f *2000 | |
| 1460 | /GO INTO SEARCH IN REVERSE MODE LOOKING FOR | |
| 1461 | /THE LAST BLOCK NUMBER. WHEN FOUND, SYNC THE SYSTEM | |
| 1462 | /AND WRITE ALL DATA AND BLOCK NUMBERS | |
| 1463 | ||
| 1464 | DOBLK, JMS I TURN /INTO REVERSE AND SEARCH MODE | |
| 1465 | TAD BLOCKS /TO SET UP | |
| 1466 | DCA BLOCKA /FOR BLOCK DECREMENTING | |
| 1467 | TAD C2 /PHASE 2 ERROR | |
| 1468 | DCA PHASE /FOR ERROR ROUTINE | |
| 1469 | ||
| 1470 | /LOOK FOR INTERRUPT INDICATING BLOCK NUMBER | |
| 1471 | ||
| 1472 | JMS I WAIT /FOR DECTAPE FLAG | |
| 1473 | ||
| 1474 | /SWITCH TO WRITE ALL. SYSTEM NOW IN SYNC | |
| 1475 | ||
| 1476 | TAD DT0140 /SWITCH TO WRITE ALL | |
| 1477 | DTXA /EXECUTE ORDER | |
| 1478 | NEXTBN, TAD ADF3 /ADDRESS OF FIRST 3 WORDS INCLUDING | |
| 1479 | DCA I CA /THE FORWARD CHECKSUM TO BE WRITTEN | |
| 1480 | TAD M3 /NUMBER OF WORDS TO BE WRITTEN | |
| 1481 | DCA I WC /TO WORD COUNT | |
| 1482 | JMS CEZN /CHECK FOR END ZONE | |
| 1483 | TAD I WC /CHECK FOR WC=0 | |
| 1484 | SZA CLA /=0? | |
| 1485 | JMP .-3 /NOPE: TRY AGAIN | |
| 1486 | DTXA /YUP: CLEAR THE FLAG | |
| 1487 | ||
| 1488 | /WRITE DATA TRACK. REMEMBER CORRECT DATA IS BEING WRITTEN | |
| 1489 | ||
| 1490 | TAD TOTAL /ONE FROM TOTAL NUMBER | |
| 1491 | CIA /OF WORDS FOR COUNTING | |
| 1492 | DCA I WC /DATA WORDS WRITTEN | |
| 1493 | TAD AD7777 /ADDRESS OF SEVENS | |
| 1494 | DCA I CA /DATA TO BE WRITTEN | |
| 1495 | ||
| 1496 | /MONITOR WORD COUNT FOR A ZERO READING | |
| 1497 | /SOME OF THIS TIME IS USED TO SET THE NEXT | |
| 1498 | /BLOCK NUMBER INTO THE FORM. | |
| 1499 | ||
| 1500 | TAD BLOCKA /CURRENT BLOCK NUMBER | |
| 1501 | JMS I MESS /CONVERT INTO FORM | |
| 1502 | CLA CMA /TO DECREMENT | |
| 1503 | TAD BLOCKA /THE BLOCK COUNT | |
| 1504 | DCA BLOCKA /DOWN TO ZERO | |
| 1505 | JMP CEZB /BYPASS FOLLOWING ROUTINE | |
| 1506 | ||
| 1507 | /CHECK FOR END ZONE | |
| 1508 | CEZN, 0 | |
| 1509 | DTRB /READ STATUS "B" | |
| 1510 | AND C1000 /ISOLATE END ZONE | |
| 1511 | SNA CLA /HAVE IT? | |
| 1512 | JMP I CEZN /NOT EZ, RETURN | |
| 1513 | JMP I GDBN /COMPLETED | |
| 1514 | \f/CHECK HERE ALSO TO SEE IF END ZONE, INDICATING | |
| 1515 | /THAT THE LAST BLOCK HAS BEEN WRITTEN | |
| 1516 | ||
| 1517 | CEZB, JMS CEZN /END ZONE? | |
| 1518 | ||
| 1519 | /LOOK FOR WORD COUNT AS BEING EQUAL TO ZERO | |
| 1520 | ||
| 1521 | TAD I WC /WC TO C(AC) | |
| 1522 | SNA CLA /END OF DATA WRITE? | |
| 1523 | JMP WBN /YES: GO TO WRITE BLOCK NUMBER | |
| 1524 | TAD AD7777 /RESET CURRENT ADDRESS COUNT | |
| 1525 | DCA I CA /DON'T LET THE CA ADVANCE TO | |
| 1526 | JMP CEZB /MUCH | |
| 1527 | ||
| 1528 | /DATA HAS BEEN WRITTEN. NOW WRITE REVERSE | |
| 1529 | /BLOCK NUMBER, FORWARD BLOCK NUMBER, AND REVERSE | |
| 1530 | /CHECKSUM. (12 WORDS) | |
| 1531 | ||
| 1532 | WBN, DTXA /CLEAR OUT DECTAPE FLAG | |
| 1533 | TAD M14 /WILL WRITE 12 WORDS | |
| 1534 | DCA I WC /FOR THIS BIT | |
| 1535 | TAD FORMA /FROM A FORM CONTAINING | |
| 1536 | DCA I CA /BLOCK NUMBERS | |
| 1537 | ||
| 1538 | /WAIT FOR END | |
| 1539 | ||
| 1540 | JMS CEZN /END ZONE? | |
| 1541 | TAD I WC /NO: SEE IF DONE THE WRITE | |
| 1542 | SZA CLA /DONE YET ? | |
| 1543 | JMP .-3 /NO: PATIENCE IS A VIRTUE???? | |
| 1544 | DTXA /RESET THE CURRENT FLAG | |
| 1545 | JMP NEXTBN /YES: GO RECYCLE COMPLETLY | |
| 1546 | GDBN, DBN | |
| 1547 | ||
| 1548 | / FIRST 3 WORDS TO BE WRITTEN | |
| 1549 | ||
| 1550 | ADF3, . | |
| 1551 | 0000 | |
| 1552 | 0000 | |
| 1553 | 0077 | |
| 1554 | ||
| 1555 | /DATA TO BE WRITTEN ON TAPE (REVERSE) | |
| 1556 | ||
| 1557 | AD7777, . | |
| 1558 | 7777 | |
| 1559 | 7777 | |
| 1560 | 7777 | |
| 1561 | 7777 | |
| 1562 | /CHECK IF ALL DTAS ARE DONE BEFORE RESTARTING | |
| 1563 | ||
| 1564 | SETDTA, JMS I GDTA /ALL DTAS DONE? | |
| 1565 | JMP I CONTNU /NO: BACK TO WRITE BLOCK #S ON NEXT | |
| 1566 | JMP I IT /YES: GO ASK "DIRECT?" | |
| 1567 | GDTA, NUDTA /POINTER TO SUBR FOR GETTING NEXT UNIT # | |
| 1568 | CONTNU, PSER /POINTER TO START OF BLOCK # WRITE ROUTINE | |
| 1569 | \f | |
| 1570 | ||
| 1571 | /TYPE ONE FOUR CHARACTER OCTAL WORD GIVEN TO THE | |
| 1572 | /ROUTINE VIA C(ACC). C(ACC)=0 ON EXIT | |
| 1573 | ||
| 1574 | TYCT, 0 | |
| 1575 | DCA TW1 /STORE WORD GIVEN | |
| 1576 | TAD TW1 /TO C(ACC) AGAIN | |
| 1577 | RTR | |
| 1578 | RTR /6 BITS GIGHT | |
| 1579 | RTR | |
| 1580 | DCA TYCT1+2 /SAVE ROTATED VALUE, 1ST TWO | |
| 1581 | TAD TYCT1+2 /TO C(ACC) AGAIN | |
| 1582 | AND C0007 /ISOLATE SECOND CHARACTER | |
| 1583 | TAD C6060 /CONVERT TO ASCII | |
| 1584 | DCA TYCT1+1 /STORE AS FIRST PARTIAL 2 | |
| 1585 | TAD TYCT1+2 /ROTATED VALUE STORED ABOVE | |
| 1586 | RTL | |
| 1587 | RAL /3 BITS LEFT | |
| 1588 | AND C0700 /ISOLATE FIRST CHARACTER | |
| 1589 | TAD TYCT1+1 /CONVERT 1ST TO ASCII | |
| 1590 | DCA TYCT1+1 /1ST AND 2ND CHARACTERS READY | |
| 1591 | TAD TW1 /ORIGIONAL WORD | |
| 1592 | AND C0007 /ISOLATE 4TH CHARACTER | |
| 1593 | TAD C6060 /CONVERT 4 TH TO ASCII | |
| 1594 | DCA TYCT1+2 /STORE 4TH FOR A MOMENT | |
| 1595 | TAD TW1 /ORIGIONAL WORD | |
| 1596 | RTL | |
| 1597 | RAL /POSITION IT 3RD CHARACTER | |
| 1598 | AND C0700 /ISOLATE 3RD CHARACTER | |
| 1599 | TAD TYCT1+2 /CONVERT TO ASCII | |
| 1600 | DCA TYCT1+2 /CONVERSION COMPLETE | |
| 1601 | TYCT1, JMS I TYPE /TYPE THE FOUR CHARACTERS | |
| 1602 | 0 /FIRST 2 | |
| 1603 | 0 /SECOND 2 | |
| 1604 | 0 /KILL KEY | |
| 1605 | JMP I TYCT /EXIT FROM ROUTINE | |
| 1606 | ||
| 1607 | /SOME CONSTANTS FOR THE ROUTINE | |
| 1608 | ||
| 1609 | TW1, 0000 | |
| 1610 | C6060, 6060 | |
| 1611 | \f *2200 | |
| 1612 | /VERIFY THE TAPE AS BEING WRITTEN CORRECTLY | |
| 1613 | /WITH DATA AND BLOCK NUMBERS. THE INFORMATION WRITTEN | |
| 1614 | /WAS WRITTEN IN SUCH A WAY AS TO BE CORRECT | |
| 1615 | /UPON READING IT BACK | |
| 1616 | ||
| 1617 | ||
| 1618 | /TURN TAPE AND HAVE IT GOING FORWARD | |
| 1619 | ||
| 1620 | DBN, TAD ISZV /RESET INCREMENT | |
| 1621 | DCA VISZ /BLOCK NUMBERS FORWARD | |
| 1622 | DCA FCON /WILL BE ZEROS FORWARD | |
| 1623 | DCA W1 /FIRST BLOCK NUMBER FORWARD | |
| 1624 | TAD C0400 /TURN TO GO FORWARD | |
| 1625 | DBNAUX, JMS I TURN | |
| 1626 | TAD C3 /ERROR IN PHASE 3 | |
| 1627 | DCA PHASE /FOR ERROR ROUTINE | |
| 1628 | ||
| 1629 | /SET SOME OF THE CONTROL REGS | |
| 1630 | ||
| 1631 | DAB, DCA I WC /WORD COUNT DON'T CARE | |
| 1632 | TAD ADBA /SOME WHERE UP ABOVE | |
| 1633 | DCA I CA /TO GET BLOCK NUMBERS | |
| 1634 | ||
| 1635 | /WAIT FOR INTERRUPT | |
| 1636 | ||
| 1637 | JMS I WAIT /INTERRUPT | |
| 1638 | TAD W1 /FIRST OR NEXT BLOCK NUMBER | |
| 1639 | CIA /TO COMPARE | |
| 1640 | TAD I ADBA /GET THE BLOCK NUMBER | |
| 1641 | SZA CLA /COMPARE OK? | |
| 1642 | JMP BLKERZ /BLOCK ERROR FOUND | |
| 1643 | ||
| 1644 | /BLOCK COMPARES, NOW CHECK DATA | |
| 1645 | ||
| 1646 | TAD DT0030 /TO SWITCH INTO READ | |
| 1647 | DTXA /DATA MODE | |
| 1648 | DCA I WC /DON'T CARE ABOUT THE WC | |
| 1649 | CTST, TAD ADWA /FOR COMPARING | |
| 1650 | DCA I CA /FROM TAPE | |
| 1651 | ||
| 1652 | /EVERY TIME THE WORD COUNT MOVES | |
| 1653 | /A DATA TRANSFERE HAS BEEN COMPLETED. | |
| 1654 | /MAKE SURE THAT THE INFORMATION IS OK | |
| 1655 | ||
| 1656 | TAD I WC /GET WORD COUNT | |
| 1657 | SNA CLA /STILL AT ZERO? | |
| 1658 | JMP CEFR /YES: SEE IF AT END | |
| 1659 | TAD FCON /NO: SEE IF DATA | |
| 1660 | CIA /IS SAME AS WRITTEN | |
| 1661 | TAD I ADWAB /RECEIVED DATA | |
| 1662 | SZA CLA /SAME? | |
| 1663 | JMP DTAR /DATA ERROR FOUND | |
| 1664 | DCA I WC /YES: RESET WORD COUNT | |
| 1665 | \f/CHECK FOR DECTAPE FLAG INDICATING END OF | |
| 1666 | /BLOCK OR ERROR | |
| 1667 | ||
| 1668 | CEFR, DTRB /READ "B" REGISTER | |
| 1669 | SPA /ERROR? | |
| 1670 | JMP PARIR /PARITY ERROR, I GUESS | |
| 1671 | ||
| 1672 | /NO ERROR, END OF BLOCK? | |
| 1673 | ||
| 1674 | RAR /FLAG TO THE LINK | |
| 1675 | SNL CLA /END? | |
| 1676 | JMP CTST /NO: CONTINUE CHECKING | |
| 1677 | TAD DT0030 /CLEAR DECTAPE FLAG | |
| 1678 | DTXA /AND RETURN TO SEARCH | |
| 1679 | ||
| 1680 | /END OF BLOCK. SEE IF END OF TAPE | |
| 1681 | ||
| 1682 | TAD W1 /BLOCK NUMBER JUST TESTED | |
| 1683 | VISZ, ISZ W1 /+1 OR -1 TO BLOCK COUNT | |
| 1684 | SKP | |
| 1685 | HLT /ABSOLUTE PANIC | |
| 1686 | CIA /TO BE COMPARED WITH | |
| 1687 | TAD BLOCKS /TOTAL BLOCKS | |
| 1688 | SZA CLA /LAST? | |
| 1689 | JMP DAB /NO, DO ANOTHER BLOCK | |
| 1690 | ||
| 1691 | ||
| 1692 | /HERE PUT IN THE REVERSE CHECK | |
| 1693 | ||
| 1694 | DDSF, DTSF /WAIT FOR ANY FLAG TO APPEAR | |
| 1695 | JMP .-1 /NOT YET | |
| 1696 | CLA CLL /RID AC OF GARBAGE | |
| 1697 | DTRB /READ THE "B" REGISTER | |
| 1698 | AND C1000 /BETTER BE END ZONE | |
| 1699 | SNA CLA /IS IT? | |
| 1700 | JMP LNE /LAST INTERRUPT NOT END ZONE | |
| 1701 | DTCX /YUP: A OK | |
| 1702 | \f/BLOCK NUMBERS AND DATA HAVE BEEN CHECKED FORWARD | |
| 1703 | /AND ARE OK. USING THE ABOVE ROUTINE FOR CHECKING | |
| 1704 | /RESET A FEW THINGS AND CHECK IN REVERSE | |
| 1705 | ||
| 1706 | /WAS COMPLETION FOUND FORWARD? IF SO GO CHECK | |
| 1707 | /IN REVERSE; IF NOT GO SEE IF ALL TAPES HAVE BEEN CHECKED. | |
| 1708 | ||
| 1709 | ||
| 1710 | TAD FCON /IF 0'S, IT WAS FWD | |
| 1711 | SZA CLA /FWD? | |
| 1712 | JMP I FINCHK /N0: REVERSE-SEE IF ALL DTAS DONE | |
| 1713 | ||
| 1714 | /RESET THE ABOVE ROUTINE TO READ IN REVERSE | |
| 1715 | ||
| 1716 | CMA /DATA WILL BE AS WRITTEN | |
| 1717 | DCA FCON /I.E., 7777'S | |
| 1718 | TAD SJMP /INSTEAD OF INCREMENTING | |
| 1719 | DCA VISZ /WE WILL DECREMENT BLOCK NUMBERS | |
| 1720 | TAD BLOCKS /STARTING WITH THE HIGHEST | |
| 1721 | DCA W1 /AND WILL WORK TO ZERO | |
| 1722 | JMP DBNAUX /ALL SET, TRAVEL ONWARD | |
| 1723 | ||
| 1724 | /RETURN HERE AFTER EACH BLOCK FOR CHECKING WHEN LAST BLOCK | |
| 1725 | /HAS BEN PROCESSED???????????? | |
| 1726 | ||
| 1727 | SJMP, JMP .+1 | |
| 1728 | SNA /IF AC = 0, WE ARE DONE | |
| 1729 | JMP DDSF /AND NEXT FLAG SHOULD BE END ZONE | |
| 1730 | CIA /OTHERWISE, SUBTRACT ONE FROM | |
| 1731 | CMA /BLOCKS GIVING BLOCKS-1......? | |
| 1732 | DCA W1 /NOT DONE | |
| 1733 | JMP DAB /GO DO ANOTHER BLOCK | |
| 1734 | ||
| 1735 | ISZV, ISZ W1 /VARIABLE TAG | |
| 1736 | FINCHK, SETDTA | |
| 1737 | \f/BLOCK ERROR FOUND | |
| 1738 | ||
| 1739 | BLKERZ, TAD DTA /TO RESET TAPE | |
| 1740 | DTCX /MOTION | |
| 1741 | TAD I ADBA /GET BAD BLOCK NUMBER | |
| 1742 | JMS I TYOCT /AND TYPE IT OUT | |
| 1743 | JMS TYSB /TYPE "SHOULD BE" | |
| 1744 | TAD W1 /GOOD BLOCK NUMBER | |
| 1745 | JMS I TYOCT /TYPE IT OUT | |
| 1746 | JMS I TYPE | |
| 1747 | 4002 / B | |
| 1748 | 1413 /LK | |
| 1749 | 4005 / E | |
| 1750 | 2243 /R CR | |
| 1751 | 4500 /LF+END | |
| 1752 | DBERZ, JMP I .+1 | |
| 1753 | ZCOM | |
| 1754 | ||
| 1755 | /COMMON ROUTINE | |
| 1756 | ||
| 1757 | TYSB, 0 | |
| 1758 | JMS I TYPE | |
| 1759 | 4023 / S | |
| 1760 | 1017 /HO | |
| 1761 | 2514 /UL | |
| 1762 | 0440 /D | |
| 1763 | 0205 /BE | |
| 1764 | 4000 / 0 | |
| 1765 | JMP I TYSB | |
| 1766 | ||
| 1767 | /DATA ERROR | |
| 1768 | ||
| 1769 | DTAR, TAD DTA /TO STOP TAPE | |
| 1770 | DTCX /MOTION | |
| 1771 | TAD I ADWA /GET THE BAD WORD | |
| 1772 | JMS I TYOCT | |
| 1773 | JMS TYSB /TYPE "SHOULD BE" | |
| 1774 | TAD FCON /GOOD WORD | |
| 1775 | JMS I TYOCT /TYPE IT OUT | |
| 1776 | JMS I TYPE | |
| 1777 | 4004 /D | |
| 1778 | 0124 /AT | |
| 1779 | 0140 /A | |
| 1780 | 0522 /ER | |
| 1781 | 4543 /CR+LF | |
| 1782 | 0000 /END | |
| 1783 | JMP DBERZ | |
| 1784 | \f/PARITY ERROR FOUND | |
| 1785 | ||
| 1786 | PARIR, JMP I .+1 | |
| 1787 | ERROR /MAIN ERROR ROUTINE | |
| 1788 | ||
| 1789 | /LAST INTERRUPT WAS NOT END ZONE | |
| 1790 | ||
| 1791 | LNE, JMS I TYPE | |
| 1792 | 1401 /LA | |
| 1793 | 2324 /ST | |
| 1794 | 4011 / I | |
| 1795 | 1624 /NT | |
| 1796 | 4016 / N | |
| 1797 | 1724 /OT | |
| 1798 | 4005 / E | |
| 1799 | 1724 /OT | |
| 1800 | 4345 /LF+CR | |
| 1801 | 0000 /END | |
| 1802 | JMP DBERZ | |
| 1803 | \f *2400 | |
| 1804 | / TYPE OUT THE DTA UNIT NUMBER AND THE FIRST 12 BLOCK | |
| 1805 | /NUMBERS IN EITHER DIRECTION. IF RDR, IN REVERSE | |
| 1806 | /IF RDF, TYPE THEM OUT GOING IN THE FORWARD | |
| 1807 | /DIRECTION FROM THE BEGINING OF TAPE | |
| 1808 | ||
| 1809 | RDFA, TAD C0400 /DIRECTION FOR TURNING | |
| 1810 | DCA SAVEIT /STORE DIRECTION FOR NEXT DTA UNIT | |
| 1811 | TAD SAVEIT /GET DIRECTION FOR TURNING | |
| 1812 | JMS I TURN /AROUND | |
| 1813 | TAD M14 /READ 12 BLOCK | |
| 1814 | DCA W3 /COUNTER | |
| 1815 | TAD BADD /ADDRESS OF BUFFER | |
| 1816 | DCA X2 /TO AUTO INDEX 2 | |
| 1817 | TAD ADW3 /ADDRESS OF W2 | |
| 1818 | DCA I CA /FOR DATA XFER | |
| 1819 | JMS I WAIT /FOR BLOCK INTERRUPT | |
| 1820 | TAD W2 /BLOCK NUMBER | |
| 1821 | DCA I X2 /STORE BLOCK NUMBER | |
| 1822 | ISZ W3 /TOTAL = 12? | |
| 1823 | JMP .-4 /NO: GRAB NEXT | |
| 1824 | TAD DTA /KILL TAPE MOTION | |
| 1825 | DTCX /HERE | |
| 1826 | ||
| 1827 | /TYPE OUT BLOCK NUMBERS AND DTA UNIT # | |
| 1828 | ||
| 1829 | JMS I TYPE /TYPE "DTA" | |
| 1830 | 0424 /DT | |
| 1831 | 0140 /A | |
| 1832 | 0000 /END | |
| 1833 | TAD DTA /GET UNIT # | |
| 1834 | JMS I TYOCT /AND TYPE IT OUT | |
| 1835 | JMS I TYPE | |
| 1836 | 4345 /CR&LF | |
| 1837 | 0000 /END | |
| 1838 | TAD M14 /WILL TYPE ALL | |
| 1839 | DCA W1 /TWELVE WORDS | |
| 1840 | TAD BADD /ADDRESS OF BLOCK | |
| 1841 | DCA X2 /NUMBERS TO INDEX 2 | |
| 1842 | TAD I X2 /FIRST OR NEXT BLOCK | |
| 1843 | JMS I TYOCT /TYPE IT OUT | |
| 1844 | JMS I TYPE /CR AND LINE FEED | |
| 1845 | 4345 /CR+LF | |
| 1846 | 0000 | |
| 1847 | ISZ W1 /COMPLETE? | |
| 1848 | JMP .-6 /NO | |
| 1849 | JMS I NEWDTA /YES: ANY MORE DTAS? | |
| 1850 | JMP RDFA+2 /YES: GO GET BLOCK #S | |
| 1851 | JMP I IT /NO: GO ASK FOR "DIRECT?" | |
| 1852 | RDR, JMP RDFA+1 /OTHER DIRECTION | |
| 1853 | ||
| 1854 | SAVEIT, 0 /TEM. STORAGE FOR DIRECTION | |
| 1855 | NEWDTA, NUDTA /POINTER TO SUBR. TO GET A NEW DTA UNIT # | |
| 1856 | \f | |
| 1857 | /INPUT BUFFER FOR THE TELETYPE. | |
| 1858 | /NOTE ,,,,,,,THIS MUST BE AT THE END OF THE PROGRAM | |
| 1859 | ||
| 1860 | BUFFER, 0000 | |
| 1861 | ||
| 1862 | $ | |
| 1863 | \f |