1 /2 LINCTAPE SYSTEM HANDLER
11 /COPYRIGHT (C) 1974,1975,1977 BY DIGITAL EQUIPMENT CORPORATION
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.
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.
32 /DIGITAL EQUIPMENT CORPORATION ASSUMES NO RESPONSIBILITY FOR THE USE
33 /OR RELIABILITY OF ITS SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY
56 DEVICE LINC;DEVICE SYS;4171;2007;0;1341
57 DEVICE LINC;DEVICE LTA0;4171;1007;0;1341
59 /V3D: REMOVED 'SOFSET'
70 1020;20;AXO /LOAD SOME LINCTAPE FLAGS
71 1020;7600;TMA /LOAD MEMORY ADDRESS
73 PDP /BACK TO PDP-8 MODE
87 /THE BOOTSTRAP FOR A LINCTAPE SYSTEM IS AS FOLLOWS:
89 /LEFT SWITCHES=700,RIGHT SWITCHES=0
90 /I-O PRESET IN LINC MODE AND PRESS "D0". TAPE WILL MOVE
91 /WHEN TAPE STOPS PRESS "START 20".
106 DCA SADR /BUFFER ADDRESS
109 /V3D TAD SOFSET /SOFSET=0
118 TAD S702 /GET FUNCTION;CREATE READ OR WRITE
119 DCA SINST /READ OR WRITE INSTRUCTION.
121 AND S70 /FIELD BITS TO AC 0-2
127 IAC RTL /SET EXTENDED ADDRESS
138 SLOOP, CLA CLL CMA RTL
139 DCA SERRCT /NO. ERROR TRIES
147 TMA /CORE ADDRESS TO CONTROL
148 SINST, 0 /READ OR WRITE
149 SBLOK, 0 /BLOCK NO. HERE
151 CMA /CHECKSUM HERE. 7777=GOOD
155 IFNZRO .-7700 <NZERR>
172 SPA CLA /WAS IT READ?
173 JMP SOK /NO..WRITE. CONTINUE
174 ISZ SERRCT /READ..RETRY IT?
176 CLA CLL CML RAR /DON'T BOTHER