-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathPARADIST.S
executable file
·5567 lines (5100 loc) · 126 KB
/
PARADIST.S
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
; The Paralax distorter by Gunstick from Unlimited Matricks
parallax equ 0
parallay equ 10
bus equ 10
digitest equ 10
; config:
def_version equ 10
d0_for_mcp equ 0
mcp_adr equ $500
keyboard set 10
test equ 10
ifeq def_version
opt d-
org $2500
keyboard set 0
endc
section text
ifne def_version
pea start(pc)
move.w #38,-(sp)
trap #14
addq.l #6,sp
clr.w -(sp)
trap #1
endc
start:
lea oldcpu(pc),a0
move.l sp,(a0)+
lea my_stack,sp
move.w sr,(a0)+
move.w #$2700,sr
move.l usp,a1
move.l a1,(a0)+
ifne def_version
moveq #$12,d0
bsr ikbd_wrt
moveq #$1a,d0
bsr ikbd_wrt
move.l $408.w,old_408
move.l #exit_with_408,$408.w
endc
lea oldvideo(pc),a0
move.b $ffff8260.w,(a0)+
move.b $ffff820a.w,(a0)+
move.l $ffff8200.w,(a0)+
movem.l $ffff8240.w,d0-d7
movem.l d0-d7,(a0)
movem.l black(pc),d0-d7
movem.l d0-d7,$ffff8240.w
lea oldvectors(pc),a0
move.l $68.w,(a0)+
move.l $70.w,(a0)+
move.l $114.w,(a0)+
move.l $118.w,(a0)+
move.l $120.w,(a0)+
move.l $134.w,(a0)+
move.l #nix,$68.w
move.l #nix,$70.w
move.l #nix,$114.w
ifeq keyboard
move.l #nix,$118.w
endc
move.l #nix,$120.w
move.l #nix,$134.w
lea oldmfp(pc),a0
move.b $fffffa07.w,(a0)+
move.b $fffffa09.w,(a0)+
move.b $fffffa13.w,(a0)+
move.b $fffffa15.w,(a0)+
move.b $fffffa17.w,(a0)+
move.b $fffffa19.w,(a0)+
move.b $fffffa1b.w,(a0)+
move.b $fffffa1d.w,(a0)+
bclr #3,$fffffa17.w
clr.b $fffffa07.w
ifeq keyboard
clr.b $fffffa09.w
endc
ifne keyboard
move.b #%01000000,$fffffa09.w
endc
bsr waitvbl1
move.b #0,$ffff8260.w
move.b #2,$ffff820a.w
bsr psginit2
bsr mfp_test
jmp screen
back:
lea my_stack,sp
bsr psginit
lea oldmfp(pc),a0
move.b (a0)+,$fffffa07.w
move.b (a0)+,$fffffa09.w
move.b (a0)+,$fffffa13.w
move.b (a0)+,$fffffa15.w
move.b (a0)+,$fffffa17.w
move.b (a0)+,$fffffa19.w
move.b (a0)+,$fffffa1b.w
move.b (a0)+,$fffffa1d.w
lea oldvectors(pc),a0
move.l (a0)+,$68.w
move.l (a0)+,$70.w
move.l (a0)+,$114.w
move.l (a0)+,$118.w
move.l (a0)+,$120.w
move.l (a0)+,$134.w
move.b #2,$ffff820a.w
bsr.s waitvbl1
move.b #0,$ffff820a.w
bsr.s waitvbl1
move.b #2,$ffff820a.w
bsr.s waitvbl1
lea oldvideo(pc),a0
move.b (a0)+,$ffff8260.w
move.b (a0)+,$ffff820a.w
move.l (a0)+,$ffff8200.w
movem.l (a0),d0-d7
movem.l d0-d7,$ffff8240.w
ifne def_version
moveq #$14,d0
bsr.s ikbd_wrt
moveq #$8,d0
bsr.s ikbd_wrt
endc
lea oldcpu(pc),a0
move.l (a0)+,sp
move.w (a0)+,sr
move.l (a0)+,a1
move.l a1,usp
ifne def_version
move.l old_408(pc),$408.w
rts
endc
ifeq def_version
moveq #d0_for_mcp,d0
jsr mcp_adr+0.w
endc
psginit:
moveq #10,d0
lea $ffff8800.w,a0
nextinit:
move.b d0,(a0)
move.b #0,2(a0)
dbf d0,nextinit
move.b #7,(a0)
move.b #$7f,2(a0)
move.b #14,(a0)
move.b #$26,2(a0)
rts
waitvbl1:
move.w #9000,d0
waitvbl2:
dbf d0,waitvbl2
waitvbl:
lea $ffff8209.w,a0
movep.w -8(a0),d0
waitvbl3:
tst.b (a0)
bne.s waitvbl3
movep.w -4(a0),d1
cmp.w d0,d1
bne.s waitvbl3
rts
psginit2:
moveq #15,d0
lea $ffff8800.w,a0
lea psginittab,a1
nextinit2:
move.b (a1)+,(a0)
move.b (a1)+,2(a0)
dbf d0,nextinit2
rts
ikbd_wrt:
lea $fffffc00.w,a0
ik_wait:
move.b (a0),d1
btst #1,d1
beq.s ik_wait
move.b d0,2(a0)
rts
mfp_test:
move.w #$2700,sr
bsr.s waitvbl
bsr.s waitvbl
move.b #0,$fffffa19.w
move.b #255,$fffffa1f.w
move.b #$20,$fffffa07.w
move.b #0,$fffffa13.w
moveq #30,d1
lea $ffff8209.w,a0
check_mfp_s1:
move.b (a0),d0
beq.s check_mfp_s1
sub.w d0,d1
lsl.w d1,d1
move.b #0,$fffffa0b.w
move.b #1,$fffffa19.w
moveq #-1,d0
mfp_test_loop:
dbf d0,mfp_test_loop
moveq #0,d0
move.b $fffffa1f.w,d0
move.b #0,$fffffa19.w
cmp.w #$9b,d0
ble.s mfp_of_my_st
move.w #-1,mfp_type
mfp_of_my_st:
rts
ifne def_version
dc.l 'XBRA'
dc.l 'TFSY'
old_408:
dc.l 0
exit_with_408:
lea my_stack,sp
jsr myexit
move.l old_408(pc),a0
jmp (a0)
endc
exit:
move.l my_reset+2,$42a.w
move.l $42a.w,my_reset+2
movem.l black(pc),d0-d7
movem.l d0-d7,$ffff8240.w
bra back
nix:
rte
oldcpu: ds.w 4
oldvideo: ds.w 19
oldvectors: ds.l 6
oldmfp: ds.w 5
mfp_type: ds.w 1
black: ds.l 16
****************************************************************
;overscan:equ 0
; Double Megadistorter by Gunstick (c) ULM 1990
; we know! it's long, but it works ! And it's from ULM !!!
; dc.w $c8*4
; dc.w 138*4
dc.w 195*4
; dc.w 167*4
; dc.w 197*4
; dc.w 167*4
; dc.w 255*4
dc.w 128*4
digisound:
; incbin "includes\telgraph.dmn"
; incbin "includes\jasy75.dmn"
; incbin "includes\senn_l1.dmn"
; incbin "includes\senn_l2.dmn"
; incbin "includes\luna.dmn"
; incbin "includes\luna2.dmn"
; incbin "includes\infinity.dmn"
incbin "includes\you1.dmn"
digiend:
dc.w 159*4
digisound2:
incbin "includes\you2.dmn"
digiend2:
even
font:
incbin "includes\font2.bin"
even
fontend:
kotz:
dc.l 0
noswreset:
rts
;--------------------------------------------------------
calc_mdist MACRO
move.w (a3)+,d6
sub.w (a4)+,d6
movem.l (a5,d6),d3/d4/d5/d6
ENDM
do_mdist MACRO
lea 64(a5),a5
move.b #1,$ffff8260.w ;GunsticK's right border end switch
move.b #0,$ffff8260.w
movem.l d3/d4/d5,$ffff8250.w ;mdist
; move.l buffer,buffer
; dcb 9,$4e71
move.b #2,$ffff8260.w ;Open left border
move.b #0,$ffff8260.w
move.l d6,$ffff825c.w ;mdist
; dcb 4,$4e71
ENDM
calc_mdist2 MACRO
move.w (a3)+,d6
sub.w (a4)+,d6
movem.l (a5,d6),d4/d5/d6/a2
ENDM
do_mdist2 MACRO
lea 64(a5),a5
move.b #1,$ffff8260.w ;GunsticK's right border end switch
move.b #0,$ffff8260.w
movem.l d4/d5/d6,$ffff8250.w ;mdist
; move.l buffer,buffer
; dcb 9,$4e71
move.b #2,$ffff8260.w ;Open left border
move.b #0,$ffff8260.w
move.l a2,$ffff825c.w ;mdist
; dcb 4,$4e71
ENDM
calc_mdist02 MACRO
move.w (a3)+,d6
sub.w (a4)+,d6
movem.l (a5,d6),d2/d4/d5/d6
ENDM
do_mdist02 MACRO
lea 64(a5),a5
move.b #1,$ffff8260.w ;GunsticK's right border end switch
move.b #0,$ffff8260.w
movem.l d2/d4/d5,$ffff8250.w ;mdist
; dcb 9,$4e71
move.b #2,$ffff8260.w ;Open left border
move.b #0,$ffff8260.w
move.l d6,$ffff825c.w ;mdist
; dcb 4,$4e71
ENDM
dcb 17-1-11,$4e71
moveq #0,d7
; megadistorter test
; lea 0(a0,d7),a0
movem.l (a0),d4/d5/d6/d7
digi1 MACRO
; not.w kotz
; bne.s *+4
; illegal
ifne digitest
moveq #-1,d6 ;~1
move.b (a6),d6 ;~2
add.w d6,d6 ;~1
add.w (a7,d6),d7 ;~4
endc
ifeq digitest
move.w #$700,$ffff8240.w
move.w #$200,$ffff8240.w
endc
andi.w #$ff*4,d7 ;~2
move.l (a7,d7),d6
movep.l d6,$ffff8800-512-downthere(a7) ;~7
ENDM
digi2 MACRO
; not.w kotz
; beq.s *+4
; illegal
ifne digitest
moveq #-1,d6 ;~1
move.b (a6)+,d6 ;~2
add.w d6,d6 ;~1
add.w 2(a7,d6),d7 ;~4
endc
ifeq digitest
move.w #$070,$ffff8240.w
move.w #$020,$ffff8240.w
endc
andi.w #$ff*4,d7 ;~2
move.l (a7,d7),d6 ;~5
movep.l d6,$ffff8800-512-downthere(a7) ;~7
ENDM
even
screen:
lea bss_start,a0
lea bss_end,a1
movem.l black,d1-d7/a2-a6
clear_loop:
movem.l d1-d7/a2-a6,(a0)
movem.l d1-d7/a2-a6,12*4(a0)
movem.l d1-d7/a2-a6,24*4(a0)
lea 36*4(a0),a0
cmp.l a0,a1
bpl.s clear_loop
move.l #screenmem,d0
add.l #255,d0
and.l #$ffff00,d0
move.l d0,screenad
ror.l #8,d0
lea $ffff8201.w,a0
movep.w d0,(a0)
lea my_stack,sp
jsr waitvbl
;free d0 d1 d2 d3 d4 d5 d6 d7 a0 a1 a2 -- -- -- a7 usp
move sr,-(sp)
move #$2700,sr
move.l sp,stack
tst.w mfp_type
beq.s mfp_is_ok
sub.w #54*2,other_mfp
add.w #54*2,other_mfp2
mfp_is_ok:
ifeq bus
moveq #57,d0
lea endprg,a0
memtest:
move.l #-1,(a0)+
dbf d0,memtest
endc
;**********************************************************
; Distorted scroller by Gunstick
ifeq 0;test
lea buffer,a0
move.w #scrhigh-1,d0 ;init all linebuffers
nextinitline:
swap d0
move.w #15,d0
move.l #%01010101010101010011001100110011,d1
move.l #%00001111000011111111111111111111,d2
testinitbuff:
move.l d1,d3
move.l d2,d4
move.l d1,d5
move.l d2,d6
move.l d1,d7
move.l d2,a1
move.l d1,a2
move.l d2,a3
move.l d1,a4
move.l d2,a5
movem.l d1-d7/a1-a5,(a0)
lea 12*4(a0),a0
movem.l d1-d7/a1-a5,(a0)
lea 12*4(a0),a0
movem.l d1-d7/a1-a5,(a0)
lea 12*4(a0),a0
movem.l d1-d7/a1-a5,(a0)
lea 12*4(a0),a0
movem.l d1-d4,(a0)
lea 4*4(a0),a0
swap d1
rol.w d1
swap d1
rol.w d1
swap d2
rol.w d2
swap d2
rol.w d2
dbf d0,testinitbuff
lea 12(a0),a0 ;jump datazone
swap d0
dbf d0,nextinitline
endc
;fill screen
move.l #%01010101010101010011001100110011,d1
move.l #%00001111000011111111111111111111,d2
lea screenmem+40,a0
move.w #(5*4*15700)/230,d0
fillloop:
move.w #25,d3
fillline:
movem.l d1/d2,(a0)
lea 8(a0),a0
dbf d3,fillline
lea 22(a0),a0
dbf d0,fillloop
lea linebuffbegin,a0
moveq #19,d0 ;20 lines are scrolled
initdist:
move.l #scrolltext,textptr-linebuffbegin(a0)
move.l a0,a1
lea buffer-linebuffbegin(a1),a1
move.l a1,bufptr-linebuffbegin(a0)
clr.w bufcnt-linebuffbegin(a0)
clr.w shift-linebuffbegin(a0)
lea linebuffend-linebuffbegin(a0),a0
dbf d0,initdist
lea inwavetab,a0
move.l a0,wavetabptr
move.l (a0),a0
move.l a0,distwaveptr
move.l #disttable,disttableptr
move.l #mdistadjust,mdistadjustptr
move.l #mdistcurv,mdistcurvptr
move.l #mwavetab,mnextcurv
move.l mwavetab,mactcurv
move.l #scrnadrs,nextscrn
move.l scrnadrs,screenadr
move.l #ecran-(15*230)+160*6,cpybufdest
; move.l #ecran-230*20,cpybufdest
lea scrolltextend,a0
lea scrolltext+1-scrolltextend(a0),a1
moveq #40-1,d0
mkpanic:
move.b -(a0),-(a1)
dbf d0,mkpanic
;prepare digisound
downthere equ $600
move.w #(256+512/4)-1,d0
lea domino,a0
lea downthere,a1
prepdigi:
move.l (a0),d1
move.l (a1),(a0)+
move.l d1,(a1)+
dbf d0,prepdigi
lea downthere+512,a7
lea digisound-2,a6
move.w (a6)+,d7
move.l a6,digiptr
move.l $42a.w,my_reset+2
move.l #my_reset,$42a.w
ifeq test
lupo:
move.w #74,d0
ll2:
digi1
move.w #$070,$ffff8240.w
dcb 512/2-22,$4e71
digi2
move.w #$700,$ffff8240.w
dcb 512/2-22-3,$4e71
dbf d0,ll2
_digmod equ *+2
jmp _dig1
_dig1:
cmp.l #digiend-75,a6
blo.s _digiok
lea digisound2-2,a6
move.w (a6)+,d7
subq #1,digcount
bhi.s _digiok
move.w 2,digcount
move.l #_dig2,_digmod
bra.s _digiok
_dig2:
cmp.l #digiend2-75,a6
blo.s _digiok
lea digisound-2,a6
subq #1,digcount
bhi.s _digiok
move.w (a6)+,d7
move.w 2,digcount
move.l #_dig1,_digmod
_digiok:
move.w #$777,$ffff8240.w
btst #0,$fffffc00.w
beq lupo
move.l a6,digiptr
move.w #$707,$ffff8240.w
bra kaka
endc
kaka:
;********************************************************
lea screenadr,a2
move.b $ffff8203.w,d0
lsl.w #8,d0
lea $ffff8207.w,a0
_no_vbl:
movep.w 0(a0),d1
cmp.w d0,d1
bne.s _no_vbl
move.w #4000,d0
firsttopwait:
dbf d0,firsttopwait
;move.b #0,$ffff820a.w
;ULM Hardware Scrolling PART 1
;THIS PART IS TO BE STARTED BEFORE THE BEGINNING OF THE VBL
;sets screen to adress contained in screenadr+(6 scanlines)
lea screenadr,a2 ;~12
moveq #0,d1 ;~4
move.b 3(a2),d1 ;~12
move.w d1,d0 ;~4
add.w d1,d1 ;~4
add.w d0,d1 ;~4
add.w d1,d1 ;~4
add.w d1,d1 ;~4 *12 (24 byte per tabentry)
lea $ffff8201.w,a1 ;~8
lea hwscrolldat,a0 ;~12
add.w d1,a0 ;~8
movep.w 1(a2),d1 ;~16
move.b 2(a2),d1 ;~12
move.b (a0)+,d0 ;~8
ext.w d0 ;~4
add.w d0,d1 ;~4
movep.w d1,0(a1) ;~16
move.l a0,tabentry-screenadr(a2) ;~16 save tablepos
;ULM Hardware Scrolling END OF PART 1
lea predigi,a6
lea mdistgraph,a5
move.w mbouncetab,d0
lsl.w #5,d0
add.w d0,a5
lea mdistadjust,a4
move.l mdistcurvptr,a3
looop:
; bsr waitvbl
clr.w resync
move.b $ffff8203.w,d0
lsl.w #8,d0
lea $ffff8207.w,a0
__no_vbl:
movep.w 0(a0),d1
cmp.w d0,d1
bne.s __no_vbl
movem.l black,d0-d6/a0
movem.l d0-d6/a0,$ffff8240.w
;blaf equ 174-55
blaf equ 174
move.w #1500-30,d0
opentopwait:
dbra d0,opentopwait
other_mfp: equ *+2
bra my_mfp
dcb 55,$4e71
my_mfp:
dcb 90+122-16-blaf,$4e71
loop:
ifeq digitest
move.w #$777,$ffff8240.w
move.w #$333,$ffff8240.w
nop
nop
endc
ifne digitest
move.l (a6)+,d1 ;~3
movep.l d1,$ffff8800-512-downthere(a7) ;~7
endc
other_mfp2: equ *+2
bra my_mfp2
my_mfp2:
dcb blaf-4-1-20-3+8,$4e71
move.w d7,digswitch
movem.l hwpalette,d2-d7/a1-a2
move.l a1,usp
lea $ffff8209.w,a1
moveq #10,d1
movea.l tabentry,a0 ;get back tablepos
ifeq digitest
move.w #$777,$ffff8240.w
move.w #$333,$ffff8240.w
nop
nop
endc
ifne digitest
move.l (a6)+,d0 ;~3
movep.l d0,$ffff8800-512-downthere(a7) ;~7
endc
move.b #0,$ffff820a.w
move.b #0,$fffffa19.w ;stop timer
move.b #244,$fffffa1f.w ;244
asd equ 7
move.b #32,$fffffa07.w
move.b #0,$fffffa0b.w ;clr pending
move.b #2,$ffff820a.w
;ULM Hardware Scrolling PART 2
;THIS PART IS TO BE STARTED BEFORE THE END OF THE VBL
;Sets colors to zero
;Sets screen to screenadr(+6 lines)
;Initializes colors with hwpalette
;Uses : d0-a3
sync:
move.b (a1),d0
beq.s sync
sub.w d0,d1
lsl.w d1,d1
moveq #5,d0
nop
bra intoall
switchloop:
; move.b #2,$ffff8260.w ;GunsticK's right border end switch
; move.b #0,$ffff8260.w
tst.b (a0)+
bne.s links1
; move.b #2,$ffff820a.w
dcb 23,$4e71
bra.s cont1
links1:
move.b #1,$ffff8260.w ;GunsticK's right border end switch
move.b #0,$ffff8260.w
;links1:
; move.b #2,$ffff820a.w
dcb 9,$4e71
move.b #2,$ffff8260.w
move.b #0,$ffff8260.w
cont1:
dcb 28,$4e71
intoall:
tst.b (a0)+
bne.s mitte
dcb 6,$4e71
bra.s cont3
mitte:
move.b #2,$ffff8260.w
move.b #0,$ffff8260.w
cont3:
move.b #asd,$fffffa19.w
ifeq digitest
move.w #$777,$ffff8240.w
move.w #$333,$ffff8240.w
nop
nop
endc
ifne digitest
move.l (a6)+,d1 ;~3
movep.l d1,$ffff8800-512-downthere(a7) ;~7
endc
dcb 28-10,$4e71
tst.b (a0)+
bne.s rechts1
tst.b (a0)+
bne.s rechts2
dcb 6,$4e71
bra.s cont4
rechts1:
move.b #0,$ffff820a.w
addq.w #1,a0
dcb 3,$4e71
bra.s cont4
rechts2:
dcb 4,$4e71
move.b #0,$ffff820a.w
cont4:
move.b #2,$ffff820a.w
dbra d0,switchloop
; move.b #2,$ffff820a.w
;HERE WE ARE SYNCHRON
;These lines are to be used if the screen uses left border
move.l usp,a1 ;get back this color
dcb 3,$4e71
move.b #1,$ffff8260.w ;GunsticK's right border end switch
move.b #0,$ffff8260.w
movem.l d2-d4,$ffff8240.w
move.b #2,$ffff8260.w ;Open left border
move.b #0,$ffff8260.w
movem.l d5-d7/a1-a2,12+$ffff8240.w
;**********************************************************
; Distorted scroller by Gunstick
;INITIALISATIONS
;***** Calc next screenadress ****
;free: d0 d1 d2 d3 d4 d5 d6 d7 a0 a1 a2 -- -- -- -- a7 usp
lea nextscrn,a2 ;~12
move.l (a2),a0 ;~20
move.l (a0)+,d0 ;~12
bne scrnok ;~12
lea scrnadrs-nextscrn(a2),a0 ;~12
move.l (a0)+,d0 ;~12
; move.l #ecran-(20*230)+160*6,cpybufdest-nextscrn(a2);~24
dcb 6,$4e71
_scrnok:
move.l d0,logbase-nextscrn(a2) ;~20
move.l a0,(a2) ;~20
;do some hardwarebouncing
move.l hwbounceptr-nextscrn(a2),a0 ;~20
move.w (a0)+,d1 ;~8
cmpi.w #-1,d1
bne.s hwbounceok ;~8
lea hwbouncetab-nextscrn(a2),a0 ;~8
move.w (a0)+,d1 ;~8
_hwbounceok:
move.l a0,hwbounceptr-nextscrn(a2) ;~16
ext.l d1 ;~4
add.l d1,d0 ;~8
cheatit:
ifne bus
move.l d0,screenadr-nextscrn(a2);~16
endc
ifeq bus
clr.l d0
clr.l d0
endc
;free: d0-a7/usp
addq.l #4,a6 ;no digi this line
calc_mdist
move.b #0,$ffff820a.w ;Open right border
move.b #2,$ffff820a.w
bra.s cont6
scrnok:
dcb 3-1+6,$4e71
bra _scrnok ;~12
hwbounceok:
bra _hwbounceok ;~12
cont6:
dcb 5-2,$4e71
do_mdist
;***** Do the 8 following distorter entrys ****
;; first copy the wave to the disttable
;Registerdefs: take care of the order. Modify also the addx.l !!!!
d_0 equr d0
d_1 equr d1
d_2 equr d2
d_3 equr d3
a_0 equr a0
a_1 equr a1
a_2 equr a2
distspeed equ 5
disthigh equ 20
;copy (disthigh-distspeed)/2 registers
movem.l disttable+distspeed*2,d_0/d_1/d_2/d_3/a_0/a_1/a_2 ;copy disttab
movem.l d_0/d_1/d_2/d_3/a_0/a_1/a_2,disttable
move.l disttable+distspeed*2+7*4,disttable+7*4
dcb 25-5-10,$4e71
ifeq digitest
move.w #$777,$ffff8240.w
move.w #$333,$ffff8240.w
nop
nop
endc
ifne digitest
move.l (a6)+,d6 ;~3
movep.l d6,$ffff8800-512-downthere(a7) ;~7
endc
calc_mdist
move.b #0,$ffff820a.w ;Open right border
move.b #2,$ffff820a.w
dcb 6,$4e71
do_mdist
move.w digswitch,d7
; digi2
move.l a6,usp ;~1
move.l digiptr,a6
dcb 27-4-5-1,$4e71
lea disttable+disthigh*2-distspeed*2,a_1 ;position to write new
move.l distwaveptr,a_0 ;position in the actual wave
moveq #distspeed-1,d_0 ;read 8
moveq #0,d_3
move.w distcalc,d_2
distwaveread:
;free: d4-d5/usp
dcb 25-10-2,$4e71
; digi1
move.l usp,a2 ;~1
ifeq digitest
move.w #$777,$ffff8240.w
move.w #$333,$ffff8240.w
nop
nop
endc
ifne digitest
move.l (a2)+,d6 ;~3
movep.l d6,$ffff8800-512-downthere(a7) ;~7
endc
move.l a2,usp ;~1
calc_mdist2
move.b #0,$ffff820a.w ;Open right border
move.b #2,$ffff820a.w
bra.s cont
notnextwavetab: ;~12 time adjust
dcb 20,$4e71
bra.s _notnextwavetab ;~12
notendwavetab: ;~12
bra.s _notendwavetab ;~12
cont:
move.w (a_0)+,d_1 ;~8
dcb 3-2,$4e71
do_mdist2
cmp.w #128,d_1 ;~8
bne.s notnextwavetab ;~8
move.l wavetabptr,a_2 ;~20 next wave to be read
tst.l (a_2) ;~12
bne.s notendwavetab ;~8
lea wavetab,a_2 ;~12 reset wavetabptr
nop
_notendwavetab:
move.l (a_2)+,a_0 ;~12
move.w (a_0)+,d_1 ;~12
move.l a_2,wavetabptr ;~20
_notnextwavetab: