forked from open-simh/simh
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathnova_dkp.c
1093 lines (957 loc) · 45.3 KB
/
nova_dkp.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* nova_dkp.c: NOVA moving head disk simulator
Copyright (c) 1993-2008, Robert M. Supnik
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of Robert M Supnik shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Robert M Supnik.
dkp moving head disk
27-Apr-12 RMS Changed ??? string digraphs to ?, per C rules
04-Jul-04 BKR device name changed to DG's DKP from DEC's DP,
DEV_SET/CLR/INTR macro use started,
fixed 'P' pulse code and secret quirks,
added 6097 diag and size support,
fixed losing unit drive type during unit change,
tightened sector size determination calculations,
controller DONE flag handling fixed,
fixed cylinder overflow test error,
seek error code fixed,
restructured dkp_go() and dkp_svc() routines
(for known future fixes needed),
fixed DIA status calculation,
fixed DKP read/write loop to properly emulate DG cylinder and sector overflows,
added trace facility,
changed 'stime' calculation to force delay time if no cylinders are crossed
(this fixes some DG code that assumes disk seek takes some time),
fixed boot code to match DG hardware standard
04-Jan-04 RMS Changed attach routine to use sim_fsize
28-Nov-03 CEO Boot from DP now puts device address in SR
24-Nov-03 CEO Added support for disk sizing on 6099/6103
19-Nov-03 CEO Corrected major DMA Mapping bug
25-Apr-03 RMS Revised autosizing
08-Oct-02 RMS Added DIB
06-Jan-02 RMS Revised enable/disable support
30-Nov-01 RMS Added read only unit, extended SET/SHOW support
24-Nov-01 RMS Changed FLG, CAPAC to arrays
26-Apr-01 RMS Added device enable/disable support
12-Dec-00 RMS Added Eclipse support from Charles Owen
15-Oct-00 RMS Editorial changes
14-Apr-99 RMS Changed t_addr to unsigned
15-Sep-97 RMS Fixed bug in DIB/DOB for new disks
15-Sep-97 RMS Fixed bug in cylinder extraction (found by Charles Owen)
10-Sep-97 RMS Fixed bug in error reporting (found by Charles Owen)
25-Nov-96 RMS Defaulted to autosize
29-Jun-96 RMS Added unit disable support
*/
#include "nova_defs.h"
#define DKP_NUMDR 4 /* #drives */
#define DKP_NUMWD 256 /* words/sector */
#define UNIT_V_DTYPE (UNIT_V_UF + 0) /* disk type */
#define UNIT_M_DTYPE 017
#define UNIT_V_AUTO (UNIT_V_UF + 5) /* autosize */
#define UNIT_DTYPE (UNIT_M_DTYPE << UNIT_V_DTYPE)
#define UNIT_AUTO (1 << UNIT_V_AUTO)
#define GET_DTYPE(x) (((x) >> UNIT_V_DTYPE) & UNIT_M_DTYPE)
#define FUNC u3 /* function */
#define CYL u4 /* on cylinder */
/* Unit, surface, sector, count register
Original format: 2b, 6b, 4b, 4b
Revised format: 2b, 5b, 5b, 4b
*/
#define USSC_V_COUNT 0 /* count */
#define USSC_M_COUNT 017
#define USSC_V_OSECTOR 4 /* old: sector */
#define USSC_M_OSECTOR 017
#define USSC_V_OSURFACE 8 /* old: surface */
#define USSC_M_OSURFACE 077
#define USSC_V_NSECTOR 4 /* new: sector */
#define USSC_M_NSECTOR 037
#define USSC_V_NSURFACE 9 /* new: surface */
#define USSC_M_NSURFACE 037
#define USSC_V_UNIT 14 /* unit */
#define USSC_M_UNIT 03
#define USSC_UNIT (USSC_M_UNIT << USSC_V_UNIT)
#define GET_COUNT(x) (((x) >> USSC_V_COUNT) & USSC_M_COUNT)
#define GET_SECT(x,dt) ((drv_tab[dt].newf)? \
(((x) >> USSC_V_NSECTOR) & USSC_M_NSECTOR): \
(((x) >> USSC_V_OSECTOR) & USSC_M_OSECTOR) )
#define GET_SURF(x,dt) ((drv_tab[dt].newf)? \
(((x) >> USSC_V_NSURFACE) & USSC_M_NSURFACE): \
(((x) >> USSC_V_OSURFACE) & USSC_M_OSURFACE) )
#define GET_UNIT(x) (((x) >> USSC_V_UNIT) & USSC_M_UNIT)
/* Flags, command, cylinder register
Original format: 5b, 2b, 1b + 8b (surrounding command)
Revised format: 5b, 2b, 9b
*/
#define FCCY_V_OCYL 0 /* old: cylinder */
#define FCCY_M_OCYL 0377
#define FCCY_V_OCMD 8 /* old: command */
#define FCCY_M_OCMD 3
#define FCCY_V_OCEX 10 /* old: cyl extend */
#define FCCY_OCEX (1 << FCCY_V_OCEX)
#define FCCY_V_NCYL 0 /* new: cylinder */
#define FCCY_M_NCYL 0777
#define FCCY_V_NCMD 9 /* new: command */
#define FCCY_M_NCMD 3
#define FCCY_READ 0
#define FCCY_WRITE 1
#define FCCY_SEEK 2
#define FCCY_RECAL 3
#define FCCY_FLAGS 0174000 /* flags */
#define GET_CMD(x,dt) ((drv_tab[dt].newf)? \
(((x) >> FCCY_V_NCMD) & FCCY_M_NCMD): \
(((x) >> FCCY_V_OCMD) & FCCY_M_OCMD) )
#define SET_CMD(x,dt) dkp_fccy = (dkp_fccy & ((drv_tab[dt].newf)? \
(FCCY_M_NCMD << FCCY_V_NCMD) : (FCCY_M_OCMD << FCCY_V_OCMD))) | \
((drv_tab[dt].newf)? \
(((x) & FCCY_M_NCMD) << FCCY_V_NCMD): \
(((x) & FCCY_M_OCMD) << FCCY_V_OCMD) )
#define GET_CYL(x,dt) ((drv_tab[dt].newf)? \
(((x) >> FCCY_V_NCYL) & FCCY_M_NCYL): \
((((x) >> FCCY_V_OCYL) & FCCY_M_OCYL) | \
((dt != TYPE_D44)? 0: \
(((x) & FCCY_OCEX) >> (FCCY_V_OCEX - FCCY_V_OCMD)))) )
/* (Warning: no sector or surface masking is done!) */
#define DKP_UPDATE_USSC( type, count, surf, sect ) \
dkp_ussc = (dkp_ussc & USSC_UNIT) \
| ((dkp_ussc + count) & USSC_M_COUNT) \
| ((drv_tab[dtype].newf)? \
((surf << USSC_V_NSURFACE) | (sect << USSC_V_NSECTOR)): \
((surf << USSC_V_OSURFACE) | (sect << USSC_V_OSECTOR)) \
);
/* Status */
#define STA_ERR 0000001 /* error */
#define STA_DLT 0000002 /* data late */
#define STA_CRC 0000004 /* crc error */
#define STA_UNS 0000010 /* unsafe */
#define STA_XCY 0000020 /* cross cylinder */
#define STA_CYL 0000040 /* nx cylinder */
#define STA_DRDY 0000100 /* drive ready */
#define STA_SEEK3 0000200 /* seeking unit 3 */
#define STA_SEEK2 0000400 /* seeking unit 2 */
#define STA_SEEK1 0001000 /* seeking unit 1 */
#define STA_SEEK0 0002000 /* seeking unit 0 */
#define STA_SKDN3 0004000 /* seek done unit 3 */
#define STA_SKDN2 0010000 /* seek done unit 2 */
#define STA_SKDN1 0020000 /* seek done unit 1 */
#define STA_SKDN0 0040000 /* seek done unit 0 */
#define STA_DONE 0100000 /* operation done */
#define STA_DYN (STA_DRDY | STA_CYL) /* set from unit */
#define STA_EFLGS (STA_ERR | STA_DLT | STA_CRC | STA_UNS | \
STA_XCY | STA_CYL) /* error flags */
#define STA_DFLGS (STA_DONE | STA_SKDN0 | STA_SKDN1 | \
STA_SKDN2 | STA_SKDN3) /* done flags */
#define GET_SA(cy,sf,sc,t) (((((cy)*drv_tab[t].surf)+(sf))* \
drv_tab[t].sect)+(sc))
/* This controller supports many different disk drive types:
type #sectors/ #surfaces/ #cylinders/ new format?
surface cylinder drive
floppy 8 1 77 no
DS/DD floppy 16 2 77 yes
(6097 "quad floppy")
Diablo 31 12 2 203 no
6225 20 2 245 yes
Century 111 6 10 203 no
4048 (same as Century 111)
Diablo 44 12 4 408 no
6099 32 4 192 yes
6227 20 6 245 yes
6070 24 4 408 yes
Century 114 12 20 203 no
4057 (same as Century 114)
6103 32 8 192 yes
4231 23 19 411 yes
In theory, each drive can be a different type. The size field in
each unit selects the drive capacity for each drive and thus the
drive type. DISKS MUST BE DECLARED IN ASCENDING SIZE.
*/
#define TYPE_FLP 0
#define SECT_FLP 8
#define SURF_FLP 1
#define CYL_FLP 77
#define SIZE_FLP (SECT_FLP * SURF_FLP * CYL_FLP * DKP_NUMWD)
#define NFMT_FLP FALSE
#define TYPE_DSDD 1
#define TYPE_6097 TYPE_DSDD
#define SECT_DSDD 16
#define SURF_DSDD 2
#define CYL_DSDD 77
#define SIZE_DSDD (SECT_DSDD * SURF_DSDD * CYL_DSDD * DKP_NUMWD)
#define NFMT_DSDD TRUE
#define TYPE_D31 2
#define SECT_D31 12
#define SURF_D31 2
#define CYL_D31 203
#define SIZE_D31 (SECT_D31 * SURF_D31 * CYL_D31 * DKP_NUMWD)
#define NFMT_D31 FALSE
#define TYPE_6225 3
#define SECT_6225 20
#define SURF_6225 2
#define CYL_6225 245
#define SIZE_6225 (SECT_6225 * SURF_6225 * CYL_6225 * DKP_NUMWD)
#define NFMT_6225 TRUE
#define TYPE_C111 4
#define SECT_C111 6
#define SURF_C111 10
#define CYL_C111 203
#define SIZE_C111 (SECT_C111 * SURF_C111 * CYL_C111 * DKP_NUMWD)
#define NFMT_C111 FALSE
#define TYPE_D44 5
#define SECT_D44 12
#define SURF_D44 4
#define CYL_D44 408
#define SIZE_D44 (SECT_D44 * SURF_D44 * CYL_D44 * DKP_NUMWD)
#define NFMT_D44 FALSE
#define TYPE_6099 6
#define SECT_6099 32
#define SURF_6099 4
#define CYL_6099 192
#define SIZE_6099 (SECT_6099 * SURF_6099 * CYL_6099 * DKP_NUMWD)
#define NFMT_6099 TRUE
#define TYPE_6227 7
#define SECT_6227 20
#define SURF_6227 6
#define CYL_6227 245
#define SIZE_6227 (SECT_6227 * SURF_6227 * CYL_6227 * DKP_NUMWD)
#define NFMT_6227 TRUE
#define TYPE_6070 8
#define SECT_6070 24
#define SURF_6070 4
#define CYL_6070 408
#define SIZE_6070 (SECT_6070 * SURF_6070 * CYL_6070 * DKP_NUMWD)
#define NFMT_6070 TRUE
#define TYPE_C114 9
#define SECT_C114 12
#define SURF_C114 20
#define CYL_C114 203
#define SIZE_C114 (SECT_C114 * SURF_C114 * CYL_C114 * DKP_NUMWD)
#define NFMT_C114 FALSE
#define TYPE_6103 10
#define SECT_6103 32
#define SURF_6103 8
#define CYL_6103 192
#define SIZE_6103 (SECT_6103 * SURF_6103 * CYL_6103 * DKP_NUMWD)
#define NFMT_6103 TRUE
#define TYPE_4231 11
#define SECT_4231 23
#define SURF_4231 19
#define CYL_4231 411
#define SIZE_4231 (SECT_4231 * SURF_4231 * CYL_4231 * DKP_NUMWD)
#define NFMT_4231 TRUE
struct drvtyp {
int32 sect; /* sectors */
int32 surf; /* surfaces */
int32 cyl; /* cylinders */
int32 size; /* #blocks */
int32 newf; /* new format flag */
};
struct drvtyp drv_tab[] = {
{ SECT_FLP, SURF_FLP, CYL_FLP, SIZE_FLP, NFMT_FLP },
{ SECT_DSDD, SURF_DSDD, CYL_DSDD, SIZE_DSDD, NFMT_DSDD },
{ SECT_D31, SURF_D31, CYL_D31, SIZE_D31, NFMT_D31 },
{ SECT_6225, SURF_6225, CYL_6225, SIZE_6225, NFMT_6225 },
{ SECT_C111, SURF_C111, CYL_C111, SIZE_C111, NFMT_C111 },
{ SECT_D44, SURF_D44, CYL_D44, SIZE_D44, NFMT_D44 },
{ SECT_6099, SURF_6099, CYL_6099, SIZE_6099, NFMT_6099 },
{ SECT_6227, SURF_6227, CYL_6227, SIZE_6227, NFMT_6227 },
{ SECT_6070, SURF_6070, CYL_6070, SIZE_6070, NFMT_6070 },
{ SECT_C114, SURF_C114, CYL_C114, SIZE_C114, NFMT_C114 },
{ SECT_6103, SURF_6103, CYL_6103, SIZE_6103, NFMT_6103 },
{ SECT_4231, SURF_4231, CYL_4231, SIZE_4231, NFMT_4231 },
{ 0 }
};
#define DKP_TRACE(x) (dkp_trace & (1<<(x)))
#define DKP_TRACE_FP stderr
/* current trace bit use (bit 0 = LSB)
0 I/O instructions
1 pre-seek/read/write event setup
2 seek events
3 read/write events
4 post read/write events
*/
extern uint16 M[];
extern UNIT cpu_unit;
extern int32 int_req, dev_busy, dev_done, dev_disable;
extern int32 saved_PC, SR, AMASK;
int32 dkp_ma = 0; /* memory address */
int32 dkp_map = 0; /* DCH map 0=A 3=B */
int32 dkp_ussc = 0; /* unit/sf/sc/cnt */
int32 dkp_fccy = 0; /* flags/cylinder */
int32 dkp_sta = 0; /* status register */
int32 dkp_swait = 100; /* seek latency */
int32 dkp_rwait = 100; /* rotate latency */
int32 dkp_diagmode = 0; /* diagnostic mode */
int32 dkp_trace = 0 ;
int32 dkp (int32 pulse, int32 code, int32 AC);
t_stat dkp_svc (UNIT *uptr);
t_stat dkp_reset (DEVICE *dptr);
t_stat dkp_boot (int32 unitno, DEVICE *dptr);
t_stat dkp_attach (UNIT *uptr, CONST char *cptr);
t_stat dkp_go ( int32 pulse );
t_stat dkp_set_size (UNIT *uptr, int32 val, CONST char *cptr, void *desc);
/* DKP data structures
dkp_dev DKP device descriptor
dkp_unit DKP unit list
dkp_reg DKP register list
dkp_mod DKP modifier list
*/
DIB dkp_dib = { DEV_DKP, INT_DKP, PI_DKP, &dkp };
UNIT dkp_unit[] = {
{ UDATA (&dkp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+
UNIT_ROABLE+(TYPE_D31 << UNIT_V_DTYPE), SIZE_D31) },
{ UDATA (&dkp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+
UNIT_ROABLE+(TYPE_D31 << UNIT_V_DTYPE), SIZE_D31) },
{ UDATA (&dkp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+
UNIT_ROABLE+(TYPE_D31 << UNIT_V_DTYPE), SIZE_D31) },
{ UDATA (&dkp_svc, UNIT_FIX+UNIT_ATTABLE+UNIT_DISABLE+UNIT_AUTO+
UNIT_ROABLE+(TYPE_D31 << UNIT_V_DTYPE), SIZE_D31) }
};
REG dkp_reg[] = {
{ ORDATA (FCCY, dkp_fccy, 16) },
{ ORDATA (USSC, dkp_ussc, 16) },
{ ORDATA (STA, dkp_sta, 16) },
{ ORDATA (MA, dkp_ma, 16) },
{ FLDATA (INT, int_req, INT_V_DKP) },
{ FLDATA (BUSY, dev_busy, INT_V_DKP) },
{ FLDATA (DONE, dev_done, INT_V_DKP) },
{ FLDATA (DISABLE, dev_disable, INT_V_DKP) },
{ FLDATA (DIAG, dkp_diagmode, 0) },
{ DRDATA (TRACE, dkp_trace, 32) },
{ ORDATA (MAP, dkp_map, 2) },
{ DRDATA (STIME, dkp_swait, 24), PV_LEFT },
{ DRDATA (RTIME, dkp_rwait, 24), PV_LEFT },
{ URDATA (CAPAC, dkp_unit[0].capac, 10, T_ADDR_W, 0,
DKP_NUMDR, PV_LEFT | REG_HRO) },
{ NULL }
};
MTAB dkp_mod[] = {
{ MTAB_XTD|MTAB_VUN, 0, "write enabled", "WRITEENABLED",
&set_writelock, &show_writelock, NULL, "Write enable drive" },
{ MTAB_XTD|MTAB_VUN, 1, NULL, "LOCKED",
&set_writelock, NULL, NULL, "Write lock drive" },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_FLP << UNIT_V_DTYPE) + UNIT_ATT,
"6030 (floppy)", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_DSDD << UNIT_V_DTYPE) + UNIT_ATT,
"6097 (DS/DD floppy)", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_D31 << UNIT_V_DTYPE) + UNIT_ATT,
"4047 (Diablo 31)", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_D44 << UNIT_V_DTYPE) + UNIT_ATT,
"4234/6045 (Diablo 44)", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_C111 << UNIT_V_DTYPE) + UNIT_ATT,
"4048 (Century 111)", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_C114 << UNIT_V_DTYPE) + UNIT_ATT,
"2314/4057 (Century 114)", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_6225 << UNIT_V_DTYPE) + UNIT_ATT,
"6225", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_6227 << UNIT_V_DTYPE) + UNIT_ATT,
"6227", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_6099 << UNIT_V_DTYPE) + UNIT_ATT,
"6099", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_6103 << UNIT_V_DTYPE) + UNIT_ATT,
"6103", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_6070 << UNIT_V_DTYPE) + UNIT_ATT,
"6070", NULL, NULL },
{ (UNIT_DTYPE+UNIT_ATT), (TYPE_4231 << UNIT_V_DTYPE) + UNIT_ATT,
"4231/3330", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_FLP << UNIT_V_DTYPE),
"6030 (floppy)", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_DSDD << UNIT_V_DTYPE),
"6097 (DS/DD floppy)", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_D31 << UNIT_V_DTYPE),
"4047 (Diablo 31)", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_D44 << UNIT_V_DTYPE),
"4234/6045 (Diablo 44)", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_C111 << UNIT_V_DTYPE),
"4048 (Century 111)", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_C114 << UNIT_V_DTYPE),
"2314/4057 (Century 114)", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_6225 << UNIT_V_DTYPE),
"6225", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_6227 << UNIT_V_DTYPE),
"6227", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_6099 << UNIT_V_DTYPE),
"6099", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_6103 << UNIT_V_DTYPE),
"6103", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_6070 << UNIT_V_DTYPE),
"6070", NULL, NULL },
{ (UNIT_AUTO+UNIT_DTYPE+UNIT_ATT), (TYPE_4231 << UNIT_V_DTYPE),
"4231/3330", NULL, NULL },
{ (UNIT_AUTO+UNIT_ATT), UNIT_AUTO, "autosize", NULL, NULL },
{ UNIT_AUTO, UNIT_AUTO, NULL, "AUTOSIZE", NULL },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_FLP << UNIT_V_DTYPE),
NULL, "FLOPPY", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_FLP << UNIT_V_DTYPE),
NULL, "6030", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_DSDD << UNIT_V_DTYPE),
NULL, "DSDDFLOPPY", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_DSDD << UNIT_V_DTYPE),
NULL, "6097", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_D31 << UNIT_V_DTYPE),
NULL, "D31", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_D31 << UNIT_V_DTYPE),
NULL, "4047", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_D44 << UNIT_V_DTYPE),
NULL, "D44", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_D44 << UNIT_V_DTYPE),
NULL, "4234", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_D44 << UNIT_V_DTYPE),
NULL, "6045", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_C111 << UNIT_V_DTYPE),
NULL, "C111", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_C111 << UNIT_V_DTYPE),
NULL, "4048", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_C114 << UNIT_V_DTYPE),
NULL, "C114", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_C114 << UNIT_V_DTYPE),
NULL, "2314", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_C114 << UNIT_V_DTYPE),
NULL, "4057", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_6225 << UNIT_V_DTYPE),
NULL, "6225", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_6227 << UNIT_V_DTYPE),
NULL, "6227", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_6099 << UNIT_V_DTYPE),
NULL, "6099", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_6103 << UNIT_V_DTYPE),
NULL, "6103", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_6070 << UNIT_V_DTYPE),
NULL, "6070", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_4231 << UNIT_V_DTYPE),
NULL, "4231", &dkp_set_size },
{ (UNIT_AUTO+UNIT_DTYPE), (TYPE_4231 << UNIT_V_DTYPE),
NULL, "3330", &dkp_set_size },
{ 0 }
};
DEVICE dkp_dev = {
"DKP", dkp_unit, dkp_reg, dkp_mod,
DKP_NUMDR, 8, 30, 1, 8, 16,
NULL, NULL, &dkp_reset,
&dkp_boot, &dkp_attach, NULL,
&dkp_dib, DEV_DISABLE
};
/* IOT routine */
int32 dkp (int32 pulse, int32 code, int32 AC)
{
UNIT *uptr;
int32 u, rval, dtype;
rval = 0;
uptr = dkp_dev.units + GET_UNIT (dkp_ussc); /* select unit */
dtype = GET_DTYPE (uptr->flags); /* get drive type */
if ( DKP_TRACE(0) )
{
static const char * f[8] =
{ "NIO", "DIA", "DOA", "DIB", "DOB", "DIC", "DOC", "SKP" } ;
static const char * s[4] =
{ " ", "S", "C", "P" } ;
printf( " [DKP %s%s %06o ", f[code & 0x07], s[pulse & 0x03], (AC & 0xFFFF) ) ;
}
switch (code) { /* decode IR<5:7> */
case ioDIA: /* DIA */
dkp_sta = dkp_sta & (~STA_DRDY) ; /* keep error flags */
if (uptr->flags & UNIT_ATT) /* update ready */
dkp_sta = dkp_sta | STA_DRDY;
if (uptr->CYL >= drv_tab[dtype].cyl)
dkp_sta = dkp_sta | STA_CYL; /* bad cylinder? */
if (dkp_sta & STA_EFLGS)
dkp_sta = dkp_sta | STA_ERR;
rval = dkp_sta;
break;
case ioDOA: /* DOA */
if (AC & 0100000) /* clear rw done? */
dkp_sta = dkp_sta & ~(STA_CYL|STA_XCY|STA_UNS|STA_CRC);
if ((dev_busy & INT_DKP) == 0) {
dkp_fccy = AC; /* save cmd, cyl */
dkp_sta = dkp_sta & ~(AC & FCCY_FLAGS);
}
DEV_CLR_DONE( INT_DKP ); /* assume done flags 0 */
if ( dkp_sta & STA_DFLGS ) /* done flags = 0? */
DEV_SET_DONE( INT_DKP ) ; /* nope - set done */
DEV_UPDATE_INTR ; /* update intr */
break;
case ioDIB: /* DIB */
rval = dkp_ma & 077777 ; /* return buf addr */
/* with B0 clear (no DCH B map support) */
break;
case ioDOB: /* DOB */
if ((dev_busy & INT_DKP) == 0) {
dkp_ma = AC & (drv_tab[dtype].newf? DMASK: AMASK);
if (AC & 0100000)
dkp_map = 3; /* high bit is map */
else
dkp_map = 0;
}
break;
case ioDIC: /* DIC */
rval = dkp_ussc; /* return unit, sect */
break;
case ioDOC: /* DOC */
if ((dev_busy & INT_DKP) == 0) /* if device is not busy */
dkp_ussc = AC ; /* save unit, sect */
if (((dtype == TYPE_6099) || /* (BKR: don't forget 6097) */
(dtype == TYPE_6097) || /* for 6099 and 6103 */
(dtype == TYPE_6103)) && /* if data<0> set, */
(AC & 010000) )
dkp_diagmode = 1; /* set diagnostic mode */
break;
} /* end switch code */
u = GET_UNIT(dkp_ussc); /* update current unit */
uptr = dkp_dev.units + u ; /* select unit */
dtype = GET_DTYPE (uptr->flags); /* get drive type */
if ( DKP_TRACE(0) )
{
if ( code & 1 )
printf( " [%06o] ", (rval & 0xFFFF) ) ;
printf( "] \n" ) ;
}
switch (pulse) { /* decode IR<8:9> */
case iopS: /* start */
DEV_SET_BUSY( INT_DKP ) ; /* set busy */
DEV_CLR_DONE( INT_DKP ) ; /* clear done */
DEV_UPDATE_INTR ; /* update ints */
if (dkp_diagmode) { /* in diagnostic mode? */
dkp_diagmode = 0; /* reset it */
if (dtype == TYPE_6097) /* (BKR - quad floppy) */
dkp_ussc = 010001;
if (dtype == TYPE_6099) /* return size bits */
dkp_ussc = 010002;
if (dtype == TYPE_6103) /* for certain types */
dkp_ussc = 010003;
}
else { /* normal mode ... */
if (dkp_go (pulse)) /* do command */
break ; /* break if no error */
}
DEV_CLR_BUSY( INT_DKP ) ; /* clear busy */
DEV_SET_DONE( INT_DKP ) ; /* set done */
DEV_UPDATE_INTR ; /* update ints */
dkp_sta = dkp_sta | STA_DONE; /* set controller done */
break;
case iopC: /* clear */
DEV_CLR_BUSY( INT_DKP ) ; /* clear busy */
DEV_CLR_DONE( INT_DKP ) ; /* set done */
DEV_UPDATE_INTR ; /* update ints */
dkp_sta = dkp_sta & ~(STA_DFLGS + STA_EFLGS); /* clear controller flags */
if (dkp_unit[u].FUNC != FCCY_SEEK)
sim_cancel (&dkp_unit[u]); /* cancel any r/w op */
break;
case iopP: /* pulse */
if ( dkp_diagmode )
{
dkp_diagmode = 0 ; /* clear DG diagnostic mode */
}
else
{
DEV_CLR_DONE( INT_DKP ) ; /* clear done */
DEV_UPDATE_INTR ;
/* DG "undocumented feature": 'P' pulse can not start a read/write operation!
* Diagnostic routines will use this crock to do 'crazy things' to size a disk
* and many assume that a recal is done, other assume that they can stop the
* read operation before any damage is done. Must also [re]calculate unit, function
* and type because DOx instruction may have updated the controller info after
* start of this procedure and before our 'P' handler. BKR
*/
if (dkp_go(pulse))
break; /* no error - do not set done and status */
}
DEV_SET_DONE( INT_DKP ) ; /* set done */
DEV_UPDATE_INTR ; /* update ints */
dkp_sta = dkp_sta | (STA_SKDN0 >> u); /* set controller seek done */
break;
} /* end case pulse */
return rval;
}
/* New command, start vs pulse handled externally
Returns true if command ok, false if error
*/
t_stat dkp_go ( int32 pulse )
{
UNIT *uptr;
int32 oldCyl, u, dtype;
dkp_sta = dkp_sta & ~STA_EFLGS; /* clear errors */
u = GET_UNIT (dkp_ussc); /* get unit number */
uptr = dkp_dev.units + u; /* get unit */
if (((uptr->flags & UNIT_ATT) == 0) || sim_is_active (uptr)) {
dkp_sta = dkp_sta | STA_ERR; /* attached or busy? */
return FALSE;
}
if (dkp_diagmode) { /* diagnostic mode? */
dkp_sta = (dkp_sta | STA_DONE); /* Set error bit only */
DEV_CLR_BUSY( INT_DKP ) ; /* clear busy */
DEV_SET_DONE( INT_DKP ) ; /* set done */
DEV_UPDATE_INTR ; /* update interrupts */
return ( TRUE ) ; /* do not do function */
}
oldCyl = uptr->CYL ; /* get old cylinder */
dtype = GET_DTYPE (uptr->flags); /* get drive type */
uptr->FUNC = GET_CMD (dkp_fccy, dtype) ; /* save command */
uptr->CYL = GET_CYL (dkp_fccy, dtype) ;
if ( DKP_TRACE(1) )
{
int32 xSect ;
int32 xSurf ;
int32 xCyl ;
int32 xCnt ;
xSect = GET_SECT(dkp_ussc, dtype) ;
xSurf = GET_SURF(dkp_ussc, dtype) ;
xCyl = GET_CYL (dkp_fccy, dtype) ;
xCnt = 16 - (GET_COUNT(dkp_ussc)) ;
fprintf( DKP_TRACE_FP,
" [%s:%c %-5s: %3d / %2d / %2d %2d %06o ] \r\n",
"DKP",
(char) (u + '0'),
((uptr->FUNC == FCCY_READ) ?
"read"
: ((uptr->FUNC == FCCY_WRITE) ?
"write"
: ((uptr->FUNC == FCCY_SEEK) ?
"seek"
: "<?>"
)
)
),
(unsigned) xCyl,
(unsigned) xSurf,
(unsigned) xSect,
(unsigned) (16 - xCnt),
(unsigned) (dkp_ma & 0xFFFF) /* show all 16-bits in case DCH B */
) ;
}
switch (uptr->FUNC) { /* decode command */
case FCCY_READ:
case FCCY_WRITE:
if (((uptr->flags & UNIT_ATT) == 0) || /* not attached? */
((uptr->flags & UNIT_WPRT) && (uptr->FUNC == FCCY_WRITE)))
{
dkp_sta = dkp_sta | STA_DONE | STA_ERR; /* error */
}
else if ( uptr->CYL >= drv_tab[dtype].cyl ) /* bad cylinder */
{
dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_CYL ;
}
else if ( GET_SURF(dkp_ussc, dtype) >= drv_tab[dtype].surf ) /* bad surface */
{
dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_UNS; /* older drives may not even do this... */
/* dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_XCY ; /- newer disks give this error */
}
else if ( GET_SECT(dkp_ussc, dtype) >= drv_tab[dtype].sect ) /* or bad sector? */
{
/* dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_UNS; /- older drives may not even do this... */
dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_XCY ; /* newer disks give this error */
}
if ( (pulse != iopS) || (dkp_sta & STA_ERR) )
{
return ( FALSE ) ;
}
sim_activate (uptr, dkp_rwait); /* schedule read or write request */
break;
case FCCY_RECAL: /* recalibrate */
uptr->FUNC = FCCY_SEEK ; /* save command */
uptr->CYL = 0 ;
case FCCY_SEEK: /* seek */
if ( ! (uptr->flags & UNIT_ATT) ) /* not attached? */
{
dkp_sta = dkp_sta | STA_DONE | STA_ERR; /* error */
}
else if ( uptr->CYL >= drv_tab[dtype].cyl ) /* bad cylinder? */
{
dkp_sta = dkp_sta | STA_ERR | STA_CYL;
}
if ( (pulse != iopP) || (dkp_sta & STA_ERR) )
{
return ( FALSE ) ; /* only 'P' pulse start seeks! */
}
/* do the seek */
/* must check for "do we support seeking bits" flag before setting SEEK0'ish bits! */
dkp_sta = dkp_sta | (STA_SEEK0 >> u); /* set seeking */
oldCyl = abs(oldCyl - uptr->CYL) ;
if ( (dkp_swait) && (! (oldCyl)) ) /* enforce minimum wait if req */
oldCyl = 1 ;
sim_activate ( uptr, (dkp_swait * oldCyl) ) ;
break;
} /* end case command */
return ( TRUE ) ; /* no error */
}
/* Unit service
If seek done, put on cylinder;
else, do read or write
If controller was busy, clear busy, set done, interrupt
Memory access: sectors are read into/written from an intermediate
buffer to allow word-by-word mapping of memory addresses on the
Eclipse. This allows each word written to memory to be tested
for out of range.
*/
t_stat dkp_svc (UNIT *uptr)
{
int32 sa, bda;
int32 dx, pa, u;
int32 dtype, err, newsect, newsurf;
uint32 awc;
t_stat rval;
static uint16 tbuf[DKP_NUMWD]; /* transfer buffer */
rval = SCPE_OK;
dtype = GET_DTYPE (uptr->flags); /* get drive type */
u = uptr - dkp_dev.units; /* get unit number */
if (uptr->FUNC == FCCY_SEEK) { /* seek? */
if ( ! (uptr->flags & UNIT_ATT) ) /* not attached? */
{
dkp_sta = dkp_sta | STA_DONE | STA_ERR; /* error (changed during queue time?) */
}
else if ( uptr->CYL >= drv_tab[dtype].cyl ) /* bad cylinder? */
{
dkp_sta = dkp_sta | STA_ERR | STA_CYL;
}
DEV_SET_DONE( INT_DKP ) ;
DEV_UPDATE_INTR ;
dkp_sta = (dkp_sta | (STA_SKDN0 >> u)) /* set seek done */
& ~(STA_SEEK0 >> u); /* clear seeking */
if ( DKP_TRACE(2) )
{
fprintf( DKP_TRACE_FP,
" [%s:%c seek : %4d ] \r\n",
"DKP",
(char) (u + '0'),
(unsigned) (uptr->CYL)
) ;
}
return SCPE_OK;
}
/* read or write */
if (((uptr->flags & UNIT_ATT) == 0) || /* not attached? */
((uptr->flags & UNIT_WPRT) && (uptr->FUNC == FCCY_WRITE)))
{
dkp_sta = dkp_sta | STA_DONE | STA_ERR; /* error */
}
else if ( uptr->CYL >= drv_tab[dtype].cyl ) /* bad cylinder */
{
dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_CYL ;
dkp_sta = dkp_sta | STA_ERR | STA_CYL;
DEV_SET_DONE( INT_DKP ) ;
DEV_UPDATE_INTR ;
return SCPE_OK ;
}
else if ( GET_SURF(dkp_ussc, dtype) >= drv_tab[dtype].surf ) /* bad surface */
{
dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_UNS; /* older drives may not even do this... */
/* dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_XCY ; /- newer disks give this error */
/* set sector to some bad value and wait then exit? */
}
else if ( GET_SECT(dkp_ussc, dtype) >= drv_tab[dtype].sect ) /* or bad sector? */
{
/* dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_UNS; /- older DG drives do not even give error(!), but we do */
dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_XCY ; /* newer disks give this error */
}
else {
err = 0 ;
do {
if ( DKP_TRACE(3) )
{
fprintf( DKP_TRACE_FP,
" [%s:%c %-5s: %3d / %2d / %2d %06o ] \r\n",
"DKP",
(char) (u + '0'),
((uptr->FUNC == FCCY_READ) ?
"read"
: ((uptr->FUNC == FCCY_WRITE) ?
"write"
: "<?>")
),
(unsigned) (uptr->CYL),
(unsigned) (GET_SURF(dkp_ussc, dtype)),
(unsigned) (GET_SECT(dkp_ussc, dtype)),
(unsigned) (dkp_ma & 0xFFFF) /* show all 16-bits in case DCH B */
) ;
}
if ( GET_SECT(dkp_ussc, dtype) >= drv_tab[dtype].sect ) /* or bad sector? */
{
/* sector overflows to 0 ;
* surface gets incremented
*/
newsurf = GET_SURF(dkp_ussc, dtype) + 1 ;
newsurf = newsurf & ((drv_tab[dtype].newf) ? USSC_M_NSURFACE : USSC_M_OSURFACE) ;
DKP_UPDATE_USSC( type, 0, newsurf, 0 )
if ( (GET_SURF(dkp_ussc, dtype)) >= drv_tab[dtype].surf )
{
/* dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_UNS; /- older drives may not even do this... */
dkp_sta = dkp_sta | STA_DONE | STA_ERR | STA_XCY ; /* newer disks give this error */
/* DG retains overflowed surface number,
* other vendors have different/expanded options
*/
break ;
}
}
sa = GET_SA (uptr->CYL, GET_SURF (dkp_ussc, dtype),
GET_SECT (dkp_ussc, dtype), dtype); /* get disk block */
bda = sa * DKP_NUMWD * sizeof(uint16) ; /* to words, bytes */
err = fseek (uptr->fileref, bda, SEEK_SET); /* position drive */
if (uptr->FUNC == FCCY_READ) { /* read? */
awc = fxread (tbuf, sizeof(uint16), DKP_NUMWD, uptr->fileref);
for ( ; awc < DKP_NUMWD; awc++) tbuf[awc] = 0;
if ((err = ferror (uptr->fileref)))
break;
for (dx = 0; dx < DKP_NUMWD; dx++) { /* loop thru buffer */
pa = MapAddr (dkp_map, (dkp_ma & AMASK));
if (MEM_ADDR_OK (pa))
M[pa] = tbuf[dx];
dkp_ma = (dkp_ma + 1) & AMASK;
}
}
else if (uptr->FUNC == FCCY_WRITE) { /* write? */
for (dx = 0; dx < DKP_NUMWD; dx++) { /* loop into buffer */
pa = MapAddr (dkp_map, (dkp_ma & AMASK));
tbuf[dx] = M[pa];
dkp_ma = (dkp_ma + 1) & AMASK;
}
fxwrite (tbuf, sizeof(int16), DKP_NUMWD, uptr->fileref);
if ((err = ferror (uptr->fileref)))
break;
}
if (err != 0) {
sim_perror ("DKP I/O error");
clearerr (uptr->fileref);
rval = SCPE_IOERR;
break ;
}
newsect = GET_SECT (dkp_ussc, dtype) + 1 ; /* update next sector */
newsurf = GET_SURF (dkp_ussc, dtype) ; /* and next head */
/* (count set below) */
DKP_UPDATE_USSC( type, 1, newsurf, newsect )
} /* end read/write loop */
while ( (GET_COUNT(dkp_ussc)) ) ;
dkp_sta = dkp_sta | STA_DONE; /* set status */
if ( DKP_TRACE(4) )
{
fprintf( DKP_TRACE_FP,
" [%s:%c %-5s: %3d / %2d / %2d %06o ] \r\n",
"DKP",
(char) (u + '0'),
"post",
(unsigned) (uptr->CYL),
(unsigned) (GET_SURF(dkp_ussc, dtype)),
(unsigned) (GET_SECT(dkp_ussc, dtype)),
(unsigned) (dkp_ma & 0xFFFF) /* show all 16-bits in case DCH B */
) ;
}
}
DEV_CLR_BUSY( INT_DKP ) ;
DEV_SET_DONE( INT_DKP ) ;
DEV_UPDATE_INTR ;
return rval;
}
/* Reset routine */
t_stat dkp_reset (DEVICE *dptr)
{
int32 u;
UNIT *uptr;
DEV_CLR_BUSY( INT_DKP ) ; /* clear busy */
DEV_CLR_DONE( INT_DKP ) ; /* clear done */
DEV_UPDATE_INTR ; /* update ints */
dkp_fccy = dkp_ussc = dkp_ma = dkp_sta = 0; /* clear registers */
dkp_diagmode = 0; /* clear diagnostic mode */
dkp_map = 0;
for (u = 0; u < DKP_NUMDR; u++) { /* loop thru units */
uptr = dkp_dev.units + u;
sim_cancel (uptr); /* cancel activity */
uptr->CYL = uptr->FUNC = 0;
}
return SCPE_OK;
}
/* Attach routine (with optional autosizing) */
t_stat dkp_attach (UNIT *uptr, CONST char *cptr)
{
int32 i, p;
t_stat r;
uptr->capac = drv_tab[GET_DTYPE (uptr->flags)].size; /* restore capac */
r = attach_unit (uptr, cptr); /* attach */
if ((r != SCPE_OK) || !(uptr->flags & UNIT_AUTO))
return r;
if ((p = sim_fsize (uptr->fileref)) == 0) /* get file size */
return SCPE_OK;