| 1 | /IOPEN SUBROUTINE OS8 FORTRAN II LIBRARY |
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| 11 | /COPYRIGHT (C) 1974,1977 BY DIGITAL EQUIPMENT CORPORATION |
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| 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 MANUAL. |
| 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 | / |
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| 43 | / |
| 44 | / |
| 45 | \f/ VERSION 21A |
| 46 | / VERSION NUMBER IS AVAILABLE AT ENTRY POINTS |
| 47 | / SUBROUTINES TO MANIPULATE OS/8 FILES |
| 48 | / |
| 49 | |
| 50 | ENTRY IOPEN /OPEN AN INPUT FILE |
| 51 | ENTRY OOPEN /OPEN AN OUTPUT FILE |
| 52 | ENTRY OCLOS /CLOSE AN OUTPUT FILE |
| 53 | ENTRY CHAIN /CHAIN TO A PROGRAM |
| 54 | |
| 55 | OPDEF TADI 1400 |
| 56 | OPDEF ISZI 2400 |
| 57 | OPDEF DCAI 3400 |
| 58 | OPDEF JMPI 5400 |
| 59 | |
| 60 | LAP /LEAVE AUTOMATIC PAGING - WE NEED THE 2 LOCATIONS |
| 61 | |
| 62 | IOER, 1117;0522 /"IOER" ERROR MESSAGE |
| 63 | IOPEN, BLOCK 1 |
| 64 | 21 |
| 65 | TAD ASDVM1 |
| 66 | JMS SETUP /PUT 2 WORDS OF FIRST ARGUMENT INTO "ASDEV" |
| 67 | TADI INHNDL /DATA FIELD IS 0 HERE - GET INPUT HANDLER PAGE |
| 68 | SNA |
| 69 | JMP IOERR /NO /I GIVEN - ERROR |
| 70 | DCAI 10 /STORE IN "ASPAGE" |
| 71 | JMS GFILNM /MOVE FILE NAME INTO LOCS 00000-00003 |
| 72 | TAD FLUKUP /LOAD POINTER TO "FLUKUP" IN RUN-TIME ROUTINES |
| 73 | CALASN, 6202 /CIF 0 |
| 74 | JMS I FASIGN /SET DF=CURRENT AND GO LOOKUP FILE |
| 75 | RETRN IOPEN /** FASIGN SKIPS BUT SECOND WORD IS SMALL ** |
| 76 | IOERR, CALL 1,ERROR /I-O ERROR - GIVE MESSAGE AND QUIT |
| 77 | ARG IOER |
| 78 | |
| 79 | OOPEN, BLOCK 1 |
| 80 | 21 |
| 81 | JMS OOCOMN |
| 82 | TAD FENTER |
| 83 | JMP CALASN /SEE "IOPEN" FOR COMMENTS |
| 84 | |
| 85 | OOCOMN, 0 /COMMON SUBR BETWEEN "OOPEN" AND "OCLOS" |
| 86 | TAD OOPEN |
| 87 | DCA IOPEN |
| 88 | TAD OOPEN# |
| 89 | DCA IOPEN# /MOVE CALLING ADDRESS TO IOPEN |
| 90 | TAD ASDVM1 |
| 91 | JMS SETUP /SET UP DEVICE NAME IN FIELD 0 |
| 92 | TADI OUHNDL |
| 93 | SNA |
| 94 | JMP IOERR /NO /O GIVEN - ERROR |
| 95 | DCAI 10 /STORE IN "ASPAGE" |
| 96 | JMS GFILNM /PUT FILE NAME INTO 00000-3 |
| 97 | JMPI OOCOMN |
| 98 | |
| 99 | OCLOS, BLOCK 1 |
| 100 | 21 |
| 101 | JMS OOCOMN /SET UP DEVICE AND FILE NAME |
| 102 | TAD OCLOS |
| 103 | DCA IOPEN |
| 104 | TAD OCLOS# |
| 105 | DCA IOPEN# /SET UP IOPEN FOR RETURN |
| 106 | TAD CHAIN /=7177 |
| 107 | DCA OOCOMN |
| 108 | OCLOOP, TAD CHAIN# /=1632 =^Z ON DEVICE 4 OUTPUT |
| 109 | CALL 0,GENIO |
| 110 | ISZ OOCOMN |
| 111 | JMP OCLOOP /FORCE OUT THE LAST BUFFER |
| 112 | TAD FCLOSE |
| 113 | JMP CALASN /DO WORK AND LEAVE |
| 114 | |
| 115 | SETUP, 0 |
| 116 | DCA 10 |
| 117 | TAD IOPEN |
| 118 | DCA SETDF |
| 119 | SETDF, 0 /SET CALLING DATA FIELD |
| 120 | TADI IOPEN# |
| 121 | DCA GETWD# /SAVE FIELD OF ARGUMENT |
| 122 | INC IOPEN# |
| 123 | TADI IOPEN# |
| 124 | DCA SETDF /SAVE ADDRESS OF ARGUMENT |
| 125 | INC IOPEN# |
| 126 | JMS GETWD /TRANSFER TWO WORDS FROM THE |
| 127 | JMS GETWD /ARGUMENT LIST TO WHERE XR 10 POINTS |
| 128 | JMPI SETUP /RETURN WITH DATA FIELD =0 |
| 129 | |
| 130 | GETWD, 0 |
| 131 | NOP /SET ARGUMENT FIELD |
| 132 | TADI SETDF |
| 133 | INC SETDF |
| 134 | 6201 /CDF 00 |
| 135 | DCAI 10 |
| 136 | JMPI GETWD /DO NOT RESTORE DATA FIELD |
| 137 | |
| 138 | GFILNM, 0 |
| 139 | CLA CMA |
| 140 | JMS SETUP /MOVE TWO WORDS TO 00000 AND 00001 |
| 141 | JMS GETWD /MOVE THE THIRD WORD |
| 142 | TAD DA |
| 143 | DCAI 10 /SUPPLY AN EXTENSION |
| 144 | JMPI GFILNM |
| 145 | |
| 146 | DA, 0401 /.DA EXTENSION |
| 147 | INHNDL, 74 |
| 148 | OUHNDL, 75 |
| 149 | FASIGN, 541 /***************** |
| 150 | ASDVM1, 552 / CAUTION! |
| 151 | FLUKUP, 567 /ALL THESE LOCATIONS ARE VERY VOLATILE!! |
| 152 | FENTER, 741 /WATCH OUT IF YOU REASSEMBLE THE LOADER! |
| 153 | FCLOSE, 757 /***************** |
| 154 | |
| 155 | CHAIN, 7177 /USE "CHAIN" TO STORE CONSTANTS |
| 156 | 1632 /SINCE IT IS ONLY CALLED TERMINALLY |
| 157 | TAD CHAIN |
| 158 | DCA IOPEN |
| 159 | CALL 0,CKIO /WAIT FOR DEVICE |
| 160 | TAD CHAIN# |
| 161 | DCA IOPEN# |
| 162 | JMS GFILNM /GET FILE NAME INTO 00000-00003 |
| 163 | ISZI INHNDL /FORCE INHNDL NONZERO SO IOPEN WONT FAIL |
| 164 | TAD SV /CHANGE ASSUMED EXTENSION |
| 165 | DCA DA /FROM .DA TO .SV |
| 166 | TAD (0310 |
| 167 | DCA IOER /IF IOPEN FAILS GIVE "CHER" MESSAGE |
| 168 | CALOPN, CALL 1,IOPEN |
| 169 | ARG SYS /CHAIN WORKS FROM THE SYSTEMS DEVICE ONLY |
| 170 | 6201 |
| 171 | 0 /"ARG 0" POINTING TO 00000! |
| 172 | TAD (6 |
| 173 | 6201 /SET DF TO 0 |
| 174 | DCAI K2 /MODIFY "LOOKUP" INTO "CHAIN" |
| 175 | DCAI ZRONAM /ALSO KILL LOC WHICH ZEROS FILE NAME PTR |
| 176 | JMP CALOPN /GO BACK - THIS TIME IOPEN WILL CHAIN. |
| 177 | |
| 178 | SYS, 2303 /***** 2303+2326 =4631 = "SYS"! WATCH IT! |
| 179 | SV, 2326 |
| 180 | K2, 571 /**** SUPER VOLATILE LOCATION **** |
| 181 | ZRONAM, 557 /**** DITTO **** |
| 182 | |
| 183 | END |
| 184 | \f |