Commit | Line | Data |
---|---|---|
81e70d48 PH |
1 | /TDCHK DECTAPE READ CHECK\r |
2 | \r | |
3 | /------------------------------------------------------\r | |
4 | / BY ROBERT KRAUSE, MAY 1983\r | |
5 | /\r | |
6 | /READ CHECK IS STARTED BY SETTING SW0 TO 1\r | |
7 | /IF THE TAPE HAS NO ERRORS IT IS REWOUND AND\r | |
8 | /ALL MQ BITS ARE SET. LOWER AND RAISE SW0 TO\r | |
9 | /RESTART CHECK. AFTER AN ERROR THE ROUTINE\r | |
10 | /TRIES TO FIND THE EXACT BLOCK # OF THE ERROR.\r | |
11 | /IF THE ERROR DISAPPEARED THE CHECK IS RESTARTED,\r | |
12 | /OTHERWISE THE BLOCK # OF THE ERROR IS DISPLAYED\r | |
13 | /IN THE MQ REGISTER AND THE TERMINAL BELL RINGS.\r | |
14 | /SETTING SW0 TO 0 ABORTS THE CURRENT OPERATION\r | |
15 | /AND THE TAPE IS REWOUND.\r | |
16 | /CTRL/C RETURNS TO THE KEYBOARD MONITOR.\r | |
17 | /------------------------------------------------------\r | |
18 | \r | |
19 | *200\r | |
20 | \r | |
21 | TDCHK, LAS /SW0 = 1 ?\r | |
22 | SMA CLA\r | |
23 | JMP .-2\r | |
24 | \r | |
25 | TAD (-103 /SET COUNT TO # OF CLUSTERS\r | |
26 | DCA CNT\r | |
27 | DCA BLKN /SET BLOCK # TO 0\r | |
28 | MQL /CLEAR MQ\r | |
29 | \r | |
30 | NEXT, KRS /CTRL/C TYPED ?\r | |
31 | TAD (-203\r | |
32 | SNA\r | |
33 | JMP I (7600 /YES, RETURN TO MONITOR\r | |
34 | \r | |
35 | LAS /SW0 = 1 ?\r | |
36 | SMA CLA\r | |
37 | JMP REWIND /NO, REWIND TAPE\r | |
38 | \r | |
39 | JMS I (7614 /READ 11. BLOCKS FROM UNIT 1\r | |
40 | 1310 /INTO FIELD 1\r | |
41 | 0000 /BEGINNING AT 0000\r | |
42 | BLKN, 0000 /BLOCK #\r | |
43 | \r | |
44 | JMP ERROR /ERROR RETURN\r | |
45 | \r | |
46 | CLA /BLKN:=BLKN+11.\r | |
47 | TAD BLKN\r | |
48 | TAD (13\r | |
49 | DCA BLKN\r | |
50 | TAD BLKN /DISPLAY IN MQ (JUST FOR FUN)\r | |
51 | MQL\r | |
52 | ISZ CNT /INCREMENT CLUSTER COUNT\r | |
53 | \r | |
54 | JMP NEXT /CONTINUE\r | |
55 | \r | |
56 | STA /CNT = 0, DISPLAY -1 IN MQ\r | |
57 | MQL\r | |
58 | \r | |
59 | REWIND, CLA\r | |
60 | JMS I (7614 /READ BLOCK #0 TO REWIND TAPE\r | |
61 | 0110\r | |
62 | 0000\r | |
63 | 0000\r | |
64 | NOP\r | |
65 | \r | |
66 | LAS /SW0 = 0 ?\r | |
67 | SPA\r | |
68 | JMP .-2\r | |
69 | \r | |
70 | JMP TDCHK /RESTART\r | |
71 | \r | |
72 | ERROR, CLA /SET ERROR COUNT\r | |
73 | TAD (-13\r | |
74 | DCA CNT\r | |
75 | TAD BLKN /ERRBLK:=BLKN\r | |
76 | DCA ERRBLK\r | |
77 | \r | |
78 | ERR1, JMS I (7614 /READ 1 BLOCK\r | |
79 | 0110\r | |
80 | 0000\r | |
81 | ERRBLK, 0000\r | |
82 | \r | |
83 | JMP ERR2 /ERROR RETURN\r | |
84 | \r | |
85 | ISZ ERRBLK /INCREMENT BLOCK #\r | |
86 | CLA /DISPLAY BLOCK # IN MQ\r | |
87 | TAD ERRBLK\r | |
88 | MQL\r | |
89 | ISZ CNT /INCREMENT COUNT\r | |
90 | \r | |
91 | JMP ERR1 /CHECK NEXT BLOCK\r | |
92 | \r | |
93 | ERR2, CLA /RING TERMINAL BELL\r | |
94 | TAD (207\r | |
95 | TLS\r | |
96 | \r | |
97 | LAS /SW0 = 0 ?\r | |
98 | SPA\r | |
99 | JMP .-2\r | |
100 | \r | |
101 | JMP REWIND /REWIND TAPE AND RESTART\r | |
102 | \r | |
103 | /-------\r | |
104 | \r | |
105 | CNT, 0\r | |
106 | \r | |
107 | $\r |