-
Notifications
You must be signed in to change notification settings - Fork 7
/
Copy pathRA37.SRC
executable file
·2137 lines (2133 loc) · 29.8 KB
/
RA37.SRC
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
TTL <<<<< S T A R G A T E >>>>>
*
* PRAYAH 1: P L O G L A M S T A H T
*
ORG $0000
*
*OFF OBJECT
*X=OBJECT
*
OFSHIT PSHS X,U,D,Y
LDD OBJX,X
LDY OPICT,X
JSR [OBJDEL,Y]
PULS X,U,D,Y,PC
*
*EXECUTIVE LOOP
*
EXEC LDX #ACTIVE
STX CRPROC
EXEC0 LDA TIMER
BEQ EXEC0
CLR TIMER
LDB STATUS
BITB #$69
BEQ EXEC00
CLR OVCNT
BRA EXEC1
EXEC00 ASLA
ADDA OVCNT
SUBA #4
BPL EXEC01
CLRA
EXEC01 STA OVCNT
CMPA #2
BLO EXEC1
LDB #3
STB STRCNT CUT DOWN STARS
CMPA #2 OVERLOAD MAX
BLS EXEC1
LDA #2
STA OVCNT
*OVERLOAD WIPE OUT A GUY
LDY #OPTR
EXEC02 LDX ,Y
BEQ EXEC1
LDA OTYP,X DONT TOUCH THIS GUY
BEQ EXEC03
LEAY ,X
BRA EXEC02
EXEC03 LDU ,X
STU Y
LDD SEED
ANDA #$3F
ADDA #$60
ADDD OX16,X
STD OX16,X HYPER HIM OUT OF THERE
BSR OFSHIT
LDD #0
STD OBJX,X
LDU IPTR
STX IPTR
STU ,X INTO INACTIVE LIST
EXEC1 BSR COLCHK
JSR XUVCT
JSR RAND
JSR MESUPV
LDA PIA31 CHECK INVISO BUTTON
BITA #$2 WELL?
JMP SWPACH *******************************************************
NOP
NOP
**************************************************************************
* BEQ SWP$ NOT THIS TIME *
* JSR INVSTV NA NA NA NA...NA NA NA NA...HEY HEYYYYY...GO-OOD BYE *
*SWP$ LDA INDIAG DIAGNOSTICS *
* BNE SWPX THEN NO PROCESSING *
**************************************REMOVE PATCH AND INSERT ABOVE CODE**
*
*SWITCH PROCESSING
*
SWP LDX SWPROC
BNE SWP1
LDX SWPROC+4
BEQ SWPX
LDD SWPROC+6
CLR SWPROC+4
CLR SWPROC+5
BRA SWP3
SWP1 LDD SWPROC+2
CLR SWPROC
CLR SWPROC+1
SWP3 ANDB STATUS
BNE SWP
JSR MKPROC
BRA SWP
SWPX EQU *
*
*PROCESS DISPATCH
*
DISP LDU #ACTIVE
BRA DISP2
DISP1 DEC PTIME,U
BNE DISP2
STU CRPROC
JMP [PADDR,U]
*
*SLEEP
*A=SLEEP TIME X 16MSEC
*X=WAKEUP ADDR
*
SLEEP LDU CRPROC
STA PTIME,U
STX PADDR,U
DISP2 LDU ,U
BNE DISP1
LDS #HSTK
JMP EXEC
*
COLCHK LDA STATUS
BITA #$09
BNE COLCX
LDD PLAXC PLAYER
LDU #PLAPIC
TST PLADIR
BPL COLC1
LDU #PLBPIC
COLC1 PSHS D,U
INC PCFLG
JSR COLIDE
PULS D,U
BNE COLC2
LDX #SPTR
JSR COL0
BEQ COLCX
COLC2 JSR PLENDV
COLCX CLR PCFLG
RTS
*
*SUICIDE
*
SUCIDE LDX CRPROC
BSR KILL
LEAU ,X
BRA DISP2 GET NEW CRPROC
*
*KILL OBJECT PROCESS
*
KILLOP LDX OBJID,X
*
*KILL
*X=PROCESS TO KILL
*
KILL PSHS D,U
LDU #ACTIVE
KILP1 CMPX ,U
BNE KILPLP NO MATCH
LDD ,X GET FORWARD LINK OF DEAD GUY
STD ,U
LDA PCOD,X
BEQ KILP2 REG PROCESS
LDD SPFREE SUPER PROCESS
STX SPFREE
BRA KILP3
KILP2 LDD FREE
STX FREE PUT HIM AT HEAD OF FREE
KILP3 STD ,X
LEAX ,U SAVE CRPROC FOR SUICIDE
PULS D,U,PC
KILPLP LDU ,U
BNE KILP1
BSR ERROR
ERROR ORCC #$10 (SEI) ERROR TRAP
BRA *
*
*MAKE A SUPER PROCESS
*X = START ADDR
*A = USER TYPE
*X =RETURNED WITH DATA BLOCK POINTER
MSPROC PSHS A,Y,U
LDU SPFREE
BNE *+3
JSR ERROR ERROR TRAP
LDY ,U
STY SPFREE
LDA #1
STA PCOD,U
LDA ,S GET TYPE
BRA MKP1
*
*MAKE A PROCESS
*X=START ADDR
*A=USER TYPE
*X RETURNED WITH DATA BLOCK PTR
*
MKPROC PSHS A,Y,U
LDU FREE
BNE MKP0 NOT OUT
JSR ERROR
MKP0 LDY ,U
STY FREE DELINK
CLR PCOD,U
MKP1 STX PADDR,U
STA PTYPE,U
LDA #1
STA PTIME,U INIT TIME
LDX [CRPROC]
STU [CRPROC]
STX ,U LINK IN
LEAX ,U SETUP X AS DATA BLOCK
PULS A,Y,U,PC
*
*GENOCIDE : KILL EVERYONE EXCEPT FOR YOURSELF
*
GNCIDE PSHS A,X
LDX #ACTIVE
GNC1 LDX ,X
BEQ GNCX
CMPX CRPROC
BEQ GNC1 DO NOT KILL SELF
LDA PTYPE,X DONT KILL COINS
CMPA #CTYPE
BEQ GNC1
BSR KILL
BRA GNC1
GNCX PULS A,X,PC
*
*INIT OBJECT
*BSR GETOB
*[RET]>OPICT
*[RET+]>OCVECT
*[RET+2]>OBJCOL
*U>OBJID
*RET<RET+6
*
OBINIT BSR GETOB
PSHS U,D,Y
STU OBJID,X
LDU 6,S
PULU D,Y
STD OPICT,X
STY OCVECT,X
PULU D
STD OBJCOL,X
STU 6,S
PULS U,D,Y,PC
*
*GET OBJECT LIST CELL IN X
*OBJX=0
*CALLER MUST >STX OPTR< AFTER INITIALIZATION OF PARAMETERS
GETOB PSHS U,D
LDX OFREE
BNE GETOB1 NOT OUT
JSR ERROR
GETOB1 LDD OLINK,X
STD OFREE
LDD OPTR
STD OLINK,X
CLRD
STD OBJX,X
STA OTYP,X CLEAR TYPE
PULS U,D,PC
*
*KILL OBJECT CELL IN X
*
KILLOB PSHS X,Y,U
LDU #OPTR
KILO1 CMPX ,U MATCH?
BNE KILOLP
KILO2 LDY [,U] UNLINK
STY ,U
LDY OFREE
STX OFREE
STY ,X
PULS X,Y,U,PC
KILOLP LDU ,U
BNE KILO1 CONTINUE
LDU #IPTR SEARCH INACTIVE LIST
KILO3 CMPX ,U
BEQ KILO2
LDU ,U
BNE KILO3
JSR ERROR
*
*KILL A SHELL
*X=SHELL
*
KILSHL PSHS X,Y,U
LDU #SPTR
BRA KILO3
*
*OUTPUT 2X8
*
ON28 PSHS X,DP
STS TEMP48
BCC ON280
LEAY 2,Y
ON280 LDS OBJP0,Y
ADDB #8
TFR D,U
BRA ON281
*
*OFF2X8
*
OFF28 PSHS X,DP
ADDB #8
TFR D,U
LDD #0
LDX #0
LEAY ,X
TFR A,DP
ANDCC #0
BRA OFF281
*
*OFF 5X8
*
OFF58 PSHS X,DP
ADDB #8
TFR D,U
LDD #0
LDX #0
LEAY ,X
TFR A,DP
ANDCC #0
PSHU X,Y,D,DP,CC
LEAU 264,U
BRA OFF481
*
*OUTPUT 4X8
*STORED COL1-COLN
*CALLED BY IRQ ONLY
ON48 PSHS X,DP
STS TEMP48 SAVE STACK
BCC ON480
LEAY 2,Y ODD PHASE
ON480 LDS OBJP0,Y
ADDB #8
TFR D,U
ON481 PULS D,X,Y,DP,CC
PSHU D,X,Y,DP,CC
LEAU 264,U
PULS D,X,Y,DP,CC
PSHU D,X,Y,DP,CC
LEAU 264,U
ON281 PULS D,X,Y,DP,CC
PSHU D,X,Y,DP,CC
LEAU 264,U
PULS D,X,Y,DP,CC
PSHU D,X,Y,DP,CC
LDS >TEMP48 STACK RESTORE, EXTENDED
PULS X,DP,PC
*
*ERASE 4X8
*COLUMNAR OBJECTS 8 LONG
*
*OFF 4X8
*
OFF48 PSHS X,DP
ADDB #8
TFR D,U
LDD #0
LDX #0
LEAY ,X
TFR A,DP
ANDCC #0
OFF481 PSHU X,Y,D,DP,CC
LEAU 264,U
PSHU X,Y,D,DP,CC
LEAU 264,U
OFF281 PSHU X,Y,D,DP,CC
LEAU 264,U
PSHU X,Y,D,DP,CC
PULS X,DP,PC
*
*ON 5X8
*
ON58 PSHS X,DP
STS TEMP48
BCC ON580
LEAY 2,Y
ON580 LDS OBJP0,Y
ADDB #8
TFR D,U
PULS D,X,Y,DP,CC
PSHU D,X,Y,DP,CC
LEAU 264,U
BRA ON481
*
*ON 3X4 OBJECT
*
ON34 BCC ON340
LEAY 2,Y ODD GUY
ON340 LDY OBJP0,Y
TFR D,U
ON341 LDD ,Y
STD ,U
LDD 2,Y
STD 2,U
LDD 4,Y
STD $100,U
LDD 6,Y
STD $102,U
LDD 8,Y
STD $200,U
LDD 10,Y
STD $202,U
RTS
*
*OFF 3X4 OBJECT
*
OFF34 TFR D,U
LDD #0
OFF341 STD ,U
STD 2,U
STD $100,U
STD $102,U
STD $200,U
STD $202,U
RTS
*
*ON 2X3 OBJECT
*
ON23 BCC ON230
LEAY 2,Y
ON230 LDY OBJP0,Y
TFR D,U
LDD ,Y
STD ,U
LDD 2,Y
STA 2,U
STB $100,U
LDD 4,Y
STD $101,U
RTS
*
*OFF 2X3 OBJECT
*
OFF23 TFR D,U
LDD #0
STD ,U
STA 2,U
STD $100,U
STA $102,U
RTS
*
*OUTPUT 6X4
*IRQ CALLS ONLY
*
ON64 PSHS X,U,D
STS TEMP48
BCC ON640
LEAY 2,Y
ON640 LDS OBJP0,Y
ADDB #4
TFR D,U
ON641 PULS X,D
PSHU X,D
LEAU 260,U
PULS X,D
PSHU X,D
LEAU 260,U
PULS X,D
PSHU X,D
LEAU 260,U
PULS X,D
PSHU X,D
LEAU 260,U
PULS X,D
PSHU X,D
LEAU 260,U
PULS X,D
PSHU X,D
LDS TEMP48
PULS X,U,D,PC
*
*OFF 6X4
*
OFF64 PSHS X,U,D
ADDB #4
TFR D,U
LDD #0
OFF641 LDX #0
PSHU X,D
LEAU 260,U
PSHU X,D
LEAU 260,U
PSHU X,D
LEAU 260,U
PSHU X,D
LEAU 260,U
PSHU X,D
LEAU 260,U
PSHU X,D
PULS X,U,D,PC
*
*OUTPUT 8X6
*
ON86 PSHS X
STS TEMP48
BCC ON860
LEAY 2,Y
ON860 LDS OBJP0,Y
ADDB #6
TFR D,U
PULS X,D,Y
PSHU X,D,Y
LEAU 262,U
PULS X,D,Y
PSHU X,D,Y
LEAU 262,U
ON661 PULS X,D,Y
PSHU X,D,Y
LEAU 262,U
ON561 PULS X,D,Y
PSHU X,D,Y
LEAU 262,U
PULS X,D,Y
PSHU X,D,Y
LEAU 262,U
PULS X,D,Y
PSHU X,D,Y
LEAU 262,U
PULS X,D,Y
PSHU X,D,Y
LEAU 262,U
PULS X,D,Y
PSHU X,D,Y
LDS TEMP48
PULS X,PC
*
*OFF 8X6
*
OFF86 PSHS X
ADDB #6
TFR D,U
LDD #0
LDX #0
LEAY ,X
PSHU X,D,Y
LEAU 262,U
PSHU X,D,Y
LEAU 262,U
OFF661 PSHU X,D,Y
LEAU 262,U
OFF561 PSHU X,D,Y
LEAU 262,U
PSHU X,D,Y
LEAU 262,U
PSHU X,D,Y
LEAU 262,U
PSHU X,D,Y
LEAU 262,U
PSHU X,D,Y
PULS X,PC
*
*OUTPUT 5X6
*
ON56 PSHS X
STS TEMP48
BCC ON560
LEAY 2,Y
ON560 LDS OBJP0,Y
ADDB #6
TFR D,U
BRA ON561
*
*OFF 5X6
*
OFF56 PSHS X
ADDB #6
TFR D,U
LDD #0
LDX #0
LEAY ,X
BRA OFF561
*
*OUTPUT 6X6
*
ON66 PSHS X
STS TEMP48
BCC ON660
LEAY 2,Y
ON660 LDS OBJP0,Y
ADDB #6
TFR D,U
JMP ON661
*
*OFF 6X6
*
OFF66 PSHS X
ADDB #6
TFR D,U
LDD #0
LDX #0
LEAY ,X
BRA OFF661
*
*ON 4X7
*
ON47 PSHS X
STS TEMP48
BCC ON471
LEAY 2,Y
ON471 LDS OBJP0,Y
ADDB #7
TFR D,U
BRA ON470
*OFF 4X7
OFF47 PSHS X
ADDB #7
TFR D,U
LDD #0
LDX #0
LEAY ,X
ANDCC #0
BRA OFF470
*
* ON 5X7 OBJECT
*
ON57 PSHS X
STS TEMP48
BCC ON570
LEAY 2,Y
ON570 LDS OBJP0,Y
ADDB #7
TFR D,U
PULS D,X,Y,CC
PSHU D,X,Y,CC
LEAU 263,U
ON470 PULS D,X,Y,CC
PSHU D,X,Y,CC
LEAU 263,U
PULS D,X,Y,CC
PSHU D,X,Y,CC
LEAU 263,U
PULS D,X,Y,CC
PSHU D,X,Y,CC
LEAU 263,U
PULS D,X,Y,CC
PSHU D,X,Y,CC
LDS TEMP48
PULS X,PC
*
*OFF 5 X 7
*
OFF57 PSHS X
ADDB #7
TFR D,U
LDD #0
LDX #0
LEAY ,X
ANDCC #0
PSHU D,X,Y,CC
LEAU 263,U
OFF470 PSHU D,X,Y,CC
LEAU 263,U
PSHU D,X,Y,CC
LEAU 263,U
PSHU D,X,Y,CC
LEAU 263,U
PSHU D,X,Y,CC
PULS X,PC
ON59 PSHS X,DP
STS TEMP48
BCC ON591
LEAY 2,Y
ON591 LDS OBJP0,Y
ADDB #9 MOVE TO END OF COLUMN
TFR D,U
LDA ,S+ GET A BYTE
STA -9,U
PULS Y,X,D,DP,CC
PSHU Y,X,D,DP,CC
LEAU 264,U
LDA ,S+ GET A BYTE
STA -9,U
PULS Y,X,D,DP,CC
PSHU Y,X,D,DP,CC
LEAU 264,U
LDA ,S+ GET A BYTE
STA -9,U
PULS Y,X,D,DP,CC
PSHU Y,X,D,DP,CC
LEAU 264,U
LDA ,S+ GET A BYTE
STA -9,U
PULS Y,X,D,DP,CC
PSHU Y,X,D,DP,CC
LEAU 264,U
LDA ,S+ GET A BYTE
STA -9,U
PULS Y,X,D,DP,CC
PSHU Y,X,D,DP,CC
LDS >TEMP48 RESTORE POINTER
PULS X,PC,DP
OFF59 PSHS X
ADDB #9
TFR D,U
LDX #0
LEAY ,X
CLRA
PSHU X,Y,A
PSHU X,Y
LEAU 265,U
PSHU X,Y,A
PSHU X,Y
LEAU 265,U
PSHU X,Y,A
PSHU X,Y
LEAU 265,U
PSHU X,Y,A
PSHU X,Y
LEAU 265,U
PSHU X,Y,A
PSHU X,Y
PULS X,PC
FBALON PSHS X
STS TEMP48
BCS FBAL1
LDS OBJP0,Y GET FIRST GUY
ADDB #5
TFR D,U NOW, ONLY DO 3 COLUMNS
BRA FBAL2
FBAL1 LDS OBJP0+2,Y GET ODD FLAVOR OUTRIGHT
ADDB #5
TFR D,U
PULS X,Y,A
PSHU X,Y,A
LEAU 261,U
FBAL2 PULS X,Y,A
PSHU X,Y,A
LEAU 261,U
PULS X,Y,A
PSHU X,Y,A
LEAU 261,U
PULS X,Y,A
PSHU X,Y,A
LDS TEMP48
PULS X,PC
*
* ACRED: ADDS A CREDITS TO TOTAL CREDITS; 99 MAX
*
ACRED PSHS A,X SAVE
ADDA CREDIT GET PRESENT
DAA HUMANIZE
BCC ACRD0 NO OVERFLOW
LDA #$99 YES, STAY AT 99
ACRD0 STA CREDIT SAVE NEW COUNT
LDX #CREDST BACKUP CREDITS
JSR WCMOSA
PULS X,A,PC GO BACK CLEAN
*
* COIN SLOT ROUTINES
*
COINR PSHS D,X SAVE STATE
LDB #$03 3RD TOTALS(RIGHT COIN)
BRA COIN$ HANDLE BELOW
COINC PSHS D,X SAVE STATE
LDB #$02 2ND TOTALS(CENTER COIN)
BRA COIN$ HANDLE BELOW
COINL PSHS D,X SAVE STATE
LDB #$01 1ST TOTALS(LEFT COIN)
COIN$ JSR AUD1 BUMP COUNT BY 1
ASLB DOUBLE FOR CMOS
LDX #SLOT1M-2 POINT TO START-2
ABX REMOVE OFFSET
JSR RCMOSB GET CORRECT SLOT X
BSR BCDBIN CONVERT TO BINARY
LDA BUNITS GET PRESENT BONUS UNITS
PSHS B AND ADD PRESENT COUNT TO IT
ADDA ,S
STA BUNITS UPDATE
LDA CUNITS
ADDA ,S+ GET PRESENT
STA CUNITS UPDATE
LDX #MINUNT GET MINIMUM UNITS
JSR RCMOSB FROM CMOS
BSR BCDBIN WORK IN BINARY
PSHS B FOR CBA
CMPA ,S+ ENOUGH?
BCC COIN1 YES, GIVE IT
PULS D,X,PC NOT ENOUGH SO FAR, BYE
COIN1 LDX #CUNITC HOW MANY?
JSR RCMOSB GET IT
BSR BCDBIN CONVERT TO HEX
BSR DIVAB SAVE REMAINDER IN B
PSHS A SAVE COUNT TO BE AWARDED FOR A WHILE
STB CUNITS SAVE REMAINDER
LDX #CUNITB BONUS REQUIRES HOW MANY?
JSR RCMOSB IN B
LDA BUNITS GET BONUS SO FAR
BSR BCDBIN CONVERT TO BINARY
BSR DIVAB DIVIDE
TSTA ANY YET?
BEQ COIN2 NO
CLR CUNITS YES, RESET ANY EXTRA
CLR BUNITS
COIN2 ADDA ,S+ GET OTHER CREDITS EARNED
DAA HUMANIZE
LDB #$04 BUMP TOTPDC
JSR AUD BY THE COUNT PAID FOR
JSR ACRED ADD TO CREDITS COUNTER
PULS D,X,PC CLEAN + GO
*
* DIVAB: A/B, REMAINDER IN B
*
DIVAB PSHS B SAVE
TSTB ANY?
BNE DIVAB0 YES, HANDLE
CLRA NO, SET TO 0
PULS B,PC CLEAN RETURN
DIVAB0 EXG A,B FOR DAA
LDA #$99 START-1
DIVAB1 ADDA #$01 NEXT
DAA HUMANIZE
SUBB ,S TAKE AWAY N
BCC DIVAB1 LOOP TILL OVERFLOW
ADDB ,S+ ADD REMAINDER + FIX STACK
RTS BTE
*
* BCDBIN: BCD=B, BINARY=B
*
BCDBIN PSHS A SAVE STATE
EXG A,B MOVE B TO A FOR DAA
CLRB SET COUNT TO ZERO
BCDBN1 TSTA DONE?
BNE BCDBN2 NO
PULS A,PC CLEAN UP + GO
BCDBN2 ADDA #$99 SUBTRACT 1
DAA HUMANIZE
INCB BUMP COUNTER
BRA BCDBN1 LOOP TILL A=0
*
*COIN SWITCHES
*LEFT
LCOIN LDX #LCCNT
LDY #COINL
BRA COIN
*RIGHT
RCOIN LDX #RCCNT
LDY #COINR
BRA COIN
*CENTER
CCOIN LDX #CCCNT
LDY #COINC
*
*COIN ROUTINE
*X=DEBOUNCE COUNTER
*B=ROUTINE
COIN LDA SLMCNT
BNE SLAMX
LDA ,X
BNE SLAMX
LDA #$16 DEBOUNCE TIME
STA ,X
STY PD2,U SAVE JUMP
NAP 10,CN1
CN1 LDA SLMCNT
BNE SLAMX SLAM, DITCH
LDD #CNSND
JSR SNDLD
JSR [PD2,U]
SLAMX JMP SUCIDE
*
*SOUND TABLE
*SNDPRI,N*(REPCNT,SNDTMR,SND#) N>=1
*SNDTMR IN 16 MSEC
*SNDPRI : HI=HI,INTERRUPTABLE BY EQUALS
*END: REPCNT=0
*
CNSND FCB $FF,$01,$18,$19,0 COIN SOUND
RPSND FCB $EF,$01,$20,$1E,0 FREE SHIP
PDSND FCB $EE,$02,$08,$11,$01,$20,$17,0 PLAYER DEATH
ST1SND FCB $F0,$01,$40,$0A,0 START 1
ST2SND FCB $F0,$01,$10,$0B,0 START2
TBSND FCB $E8,$01,$04,$14,$02,$06,$11
FCB $02,$0A,$17,0 TERRAIN BLOW
SBSND FCB $E8,$06,$04,$11,$01,$10,$17,00 SMART BOMB
ACSND FCB $E0,$03,$0A,$08,0 ASTRO CATCH
ALSND FCB $E0,$01,$18,$1F,0 ASTRO LAND
AHSND FCB $E0,$01,$18,$11,0 ASTRO HIT
ASCSND FCB $D8,$01,$10,$1A,0 ASTRO SCREAM
APSND FCB $D0,$01,$30,$15,0 APPEAR SOUND
PRHSND FCB $D0,$01,$10,$05,0 PROBE HIT
SCHSND FCB $D0,$01,$08,$17,0 SCHITZ HIT
UFHSND FCB $D0,$01,$08,$07,0 UFO HIT
TIHSND FCB $D0,$01,$0A,$01,0 TIE HIT
LHSND FCB $D0,$01,$0A,$06,0 LANDER HIT
LPKSND FCB $E1,$01,$10,$0B,0 LANDER PICK UP
LSKSND FCB $C8,$0A,$01,$0E,0 LANDER SUCK
SWHSND FCB $C0,$01,$08,$07,0 SWARM HIT
LASSND FCB $C0,$01,$30,$14,0 LASER
LGSND FCB $C0,$01,$20,$18,0 LANDER GRAB
LSHSND FCB $C0,$01,$08,$03,0 LANDER SHOOT
SSHSND FCB $C0,$01,$30,$09,0 SCHITZO SHOOT
USHSND FCB $C0,$01,$08,$03,0 UFO SHOOT
SWSSND FCB $C0,$01,$18,$0C,0 SWARM SHOOT
*
*SOUND OUTPUT
*B=SND TO MAKE
*
SNDOUT PSHS A,B,CC
ORCC #$FF
LDA #$3F
STA SOUND
COMB
ANDB #$3F DONT TURN ON LEDS
STB SOUND
PULS A,B,CC,PC
*
*SOUND LOADER
*D=ADDR OF SOUND
*
*SNDLD PSHS X,D,CC
* CLR THFLG RESET THRUST
SNDLD JMP SNDPCH *****************ATTR SOUND PATCH
NOP *****************WASTE A BYTE
TFR D,X
LDA ,X
CMPA SNDPRI
BLO SNDLDX PRIORITY NOT HI ENOUGH
STA SNDPRI
LEAX -2,X
ORCC #$10 (SEI)
STX SNDX
LDD #$0101
STD SNDTMR INIT TIMER,REPCNT
SNDLDX PULS X,D,CC,PC
*
*SOUND SEQUENCER
*
SNDSEQ LDA SNDTMR
BEQ SNDS00
DEC SNDTMR
BNE SNDSX
LDX SNDX
DEC SNDREP
BNE SNDS1
LEAX 3,X GET NEXT
STX SNDX
LDA ,X
BNE SNDS0 SOUND OVER?
STA SNDPRI YIP
SNDS00 LDA PIA21 THRUST ON?
BITA #2
BNE SNDS01 YES
LDA THFLG NO,ACTIVE?
BEQ SNDSX NO
CLR THFLG YES,TURN IT OFF
LDB #$0F
BRA SNDSX1
SNDS01 LDA THFLG THRUST ALREADY ON?
BNE SNDSX YIP...
LDA STATUS
BITA #$98 PLAYER ALIVE?
BNE SNDSX NO
LDB #$16 NO HIT IT
STB THFLG
BRA SNDSX1
SNDS0 STA SNDREP
SNDS1 LDD 1,X
STA SNDTMR
SNDSX1 BSR SNDOUT
SNDSX EQU *
*
*SWITCH SCAN
*TRIGGER=LAST 2 ZERO, NOW 1 GAME SWITCH
*TRIGGER=LAST 1 ZERO, NOW 2 1 COINS
SSCAN LDA PIA0
BITA #$40
BEQ SSC00
LDA #60
STA SLMCNT
*COIN + SLAM DEBOUNCERS
SSC00 LDA SLMCNT
BEQ SSC0A
DEC SLMCNT
SSC0A LDA LCCNT
BEQ SSC0B
DEC LCCNT
SSC0B LDA CCCNT
BEQ SSC0C
DEC CCCNT
SSC0C LDA RCCNT
BEQ SSC0
DEC RCCNT
SSC0 LDA PIA21
ORA PIA22
COMA
LDB PIA21
STB PIA22
* LDB PIA2
JMP SWPCH **************ATTR SWITCH SCAN PATCH********
STB PIA21
LDB PIA3
STB PIA31
ANDA PIA21
BEQ CSCAN