| 1 | /3 RK8 NON SYSTEM HANDLER |
| 2 | / |
| 3 | / |
| 4 | / |
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| 6 | / |
| 7 | / |
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| 9 | / |
| 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 | -4 |
| 47 | |
| 48 | DEVICE RK01;DEVICE RKA0;4050;20;ZBLOCK 2 |
| 49 | DEVICE RK01;DEVICE RKA1;4050;21;ZBLOCK 2 |
| 50 | DEVICE RK01;DEVICE RKA2;4050;22;ZBLOCK 2 |
| 51 | DEVICE RK01;DEVICE RKA3;4050;23;ZBLOCK 2 |
| 52 | |
| 53 | DLDC=6732 |
| 54 | DCLS=6742 |
| 55 | DRDS=6741 |
| 56 | DSKD=6745 |
| 57 | DSKE=6747 |
| 58 | DCLA=6751 |
| 59 | DLWC=6753 |
| 60 | DLCA=6755 |
| 61 | DLDR=6733 |
| 62 | |
| 63 | RKVERSION="A&77 |
| 64 | |
| 65 | /V3 CHANGES: |
| 66 | |
| 67 | /1. VERSION # IS NOW 1 |
| 68 | /2. A FULL 4K READ OR WRITE IS NOW LEGAL |
| 69 | |
| 70 | *200 |
| 71 | /THE ENTRY POINTS FOR RK8 ARE SET AT 20-23. VITAL!! |
| 72 | |
| 73 | RLOC, 0 /FOR BUFFER ADDRESS |
| 74 | RREC, 0 /HOLDS RECORD NO. |
| 75 | R76, 76 |
| 76 | RDLDR, DLDR |
| 77 | RKANO, 0 |
| 78 | RKAISZ, ISZ RKANO |
| 79 | RBLKCT, 0 /HOLDS TOTAL WORD COUNT |
| 80 | RERRCT, 0 /# ERROR TRIES |
| 81 | R177, 177 |
| 82 | R40, 40 |
| 83 | RM3, -3 |
| 84 | R400, 400 |
| 85 | R7400, 7400 |
| 86 | RKA, 0 /HOLDS ARGUMENT ADDRESS |
| 87 | R34, 34 |
| 88 | RZERO, RKVERSION |
| 89 | IFNZRO .-220 <ADRERR,QQQ> |
| 90 | RKA0, ISZ RKANO |
| 91 | RKA1, ISZ RKANO |
| 92 | RKA2, ISZ RKANO |
| 93 | RKA3, ISZ RKANO |
| 94 | R7600, 7600 |
| 95 | TAD RM3 |
| 96 | DCA RERRCT /3 TRIES ON ERROR |
| 97 | TAD RKANO /THIS CODE RESTORES THE ISZ RKANO |
| 98 | CMA /WHICH WAS DESTROYED IN THE CALL |
| 99 | TAD RKATAD |
| 100 | DCA RFUNCT |
| 101 | CLA CLL CML RTR |
| 102 | TAD RFUNCT /FORM DCA RKAN,WHERE RKAN WAS CALLED |
| 103 | DCA RKADCA |
| 104 | RDF |
| 105 | TAD RCDIF /RESTORE TO PROPER FIELD |
| 106 | DCA REXIT |
| 107 | RFUNCT, HLT /CONTAINS TAD RKAN WHEN EXECUTED |
| 108 | DCA RKA /SO WE SAVE ADDRESS OF ARGUMENTS |
| 109 | TAD RKAISZ /AND NOW RESTORE THE ISZ RKANO |
| 110 | RKADCA, HLT |
| 111 | TAD I RKA /FUNCTION WORD |
| 112 | DCA RFUNCT |
| 113 | ISZ RKA |
| 114 | CLA CMA /BUFFER ADDRESS -1 |
| 115 | TAD I RKA |
| 116 | DCA RLOC |
| 117 | ISZ RKA |
| 118 | TAD I RKA /RECORD NUMBER |
| 119 | DCA RREC |
| 120 | TAD RFUNCT /NOW FORM RK8 IOT FROM FUNCTION. |
| 121 | CLL RAL /READ/WRITE TO LINK |
| 122 | AND R7600 /ISOLATE WORD COUNT |
| 123 | DCA RBLKCT |
| 124 | RTL /READ=6733,WRITE=6735 |
| 125 | TAD RDLDR |
| 126 | DCA RINST |
| 127 | \fRLOOP, TAD RLOC /LOAD CURRENT ADDRESS |
| 128 | DLCA |
| 129 | TAD RBLKCT /TEST WORD COUNT FOR SIZE. |
| 130 | RKATAD, TAD R7600 /FULL=256, HALF=128 |
| 131 | SZA CLA |
| 132 | TAD R7600 |
| 133 | TAD R7600 |
| 134 | DLWC /LOAD WORD COUNT |
| 135 | TAD RFUNCT /LOADING COMMAND WORD WITH FIELD |
| 136 | CMA RAR /AND DISK SELECTION |
| 137 | AND R34 |
| 138 | TAD RKANO |
| 139 | CMA RAL |
| 140 | AND R76 |
| 141 | DLDC |
| 142 | DCLS /CLEARS SELECT ERROR IF STILL UP |
| 143 | TAD RREC |
| 144 | RINST, HLT /GETS DISK IOT |
| 145 | DSKD /TEST COMPLETION FLAG |
| 146 | SKP CLA /NOT DONE YET |
| 147 | JMP RCTLC /DONE. CHECK FOR ^C |
| 148 | DSKE /IS ERROR UP? |
| 149 | JMP .-4 |
| 150 | RERROR, ISZ RERRCT /ERROR BUMP COUNT |
| 151 | JMP .+4 |
| 152 | DCA RKANO /IT'S ALL OVER. CLEAR FOR RECALL |
| 153 | CLA CLL CML RAR |
| 154 | JMP RETRN+1 /FATAL ERROR |
| 155 | DRDS /LOOK AT STSTUS |
| 156 | AND R40 /TRACK NOT FOUND BIT |
| 157 | ISZ RZERO /CARRY OVER FROM SYSTEM HANDLER |
| 158 | JMP .-1 |
| 159 | SNA CLA |
| 160 | JMP RLOOP /TRY AGAIN |
| 161 | DCLA /RECALIBRATE |
| 162 | DSKD |
| 163 | JMP .-1 |
| 164 | JMP RLOOP /AND TRY AGAIN |
| 165 | \fRNEXT, DSKE /TRANSFER DONE. IS ERROR UP? |
| 166 | SKP |
| 167 | JMP RERROR /YEP.TOUGH LUCK |
| 168 | ISZ RREC /BUMP RECORD NUMBER |
| 169 | TAD RLOC |
| 170 | TAD R400 /BUMP CURRENT ADDRESS |
| 171 | DCA RLOC |
| 172 | TAD RBLKCT /DONE WITH ALL TRANSFERS? |
| 173 | SNA |
| 174 | JMP RDONE /V3 0 OK HERE |
| 175 | CLL CML |
| 176 | TAD R7400 |
| 177 | SZL SNA |
| 178 | JMP RDONE |
| 179 | DCA RBLKCT /NO..UPDATE TOTAL WORD COUNT |
| 180 | JMP RLOOP /AND DO THE TRANSFER |
| 181 | RDONE, CLA |
| 182 | DCA RKANO /CLEAR FOR RECALL |
| 183 | RETRN, ISZ RKA |
| 184 | ISZ RKA |
| 185 | REXIT, HLT |
| 186 | JMP I RKA |
| 187 | |
| 188 | RCTLC, KRS /TEST FOR ^C IN KEYBOARD BUFFER |
| 189 | AND R177 /WITH THE FLAG UP |
| 190 | TAD RM3 |
| 191 | SNA CLA |
| 192 | KSF |
| 193 | JMP RNEXT /NO ^C, KEEP GOING |
| 194 | RCDIF, CIF CDF 0 |
| 195 | JMP I R7600 |
| 196 | $ |
| 197 | \f |