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!DeadDuck/!RunImage

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

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Filename: !DeadDuck/!RunImage
Read OK:
File size: 21A6 bytes
Load address: 0000
Exec address: 0000
File contents
   10REM >!RunImage
   20REM DeadDuck v1.03: By Stuart Payne
   30REM Another hand crafted offering from CS_Happening home of DuckDemos
   40REM No help at all from Brain the Cat this time.
   50REM History:
   60REM Quacking added 1/5/90 (My Birthday!)
   70REM Interactive bread 3/5/90
   90PROCinit
  100REM set up the default error handler
  110ON ERROR PROCerror(ERR,REPORT$)
  120REPEAT
  130 SYS "Wimp_Poll",poll_mask%,event% TO action%
  140 PROCdespatch_poll
  150UNTIL FALSE
  160END
  170:
  180DEFPROCdespatch_poll
  190 CASE action% OF
  200  WHEN 0: PROCnull
  210  WHEN 1: PROCredraw
  220  WHEN 2: PROCopen
  230  WHEN 3: PROCclose(!event%)
  240  WHEN 6: IF event%!12=DuckWindow% AND TIME>dontdisplay% THEN
  250           CASE event%!8 OF
  260             WHEN 4,1:  IF (event%!0>=X%) AND (event%!0<=X%+(width%(LastDuck%)<<1)+4) AND (event%!4>=Y%) AND (event%!4<=Y%+(hieght%(LastDuck%)<<2)+4) THEN
  270                      PROCShoot
  280                      ELSE
  290                         IF event%!4 < (B%+64) AND NOT breadthrown% THEN
  300                            breadthrown%=TRUE
  310                            breadX%=!event%
  320                            downstream%=(breadX%<=X%)
  330                            PROCbreadthrow(SpriteTotal%,breadX%)
  340                         ENDIF
  350                     ENDIF
  360             WHEN 2: SYS &400D4,,menu%,event%!0-64,event%!4
  370           ENDCASE
  380          ENDIF
  390  WHEN 9: PROCmenu
  400  WHEN 17,18:PROCreceive(event%)
  410  ENDCASE
  420 ENDIF
  430ENDPROC
  440:
  450DEF PROCinit
  460LOCAL ERROR
  470ST%=TIME
  480VOICES 2
  490DuckMax%=32
  500dontdisplay%=0
  510SpriteTotal%=51
  520Quacking%=TRUE:breadthrown%=FALSE:breadX%=0:downstream%=FALSE
  530OS_SpriteOp%=&2E
  540newpointer=FALSE
  550DIM Ducks%(SpriteTotal%),width%(SpriteTotal%),hieght%(SpriteTotal%)
  560DIM q1% &800, q% &800, event% &800, error_blk% 256,menu% 128, s1% 32
  570bufsz%=256
  580poll_mask% = NOT(&6004F)
  590DIM taskid% 5: $taskid%="TASK"
  600SYS "Wimp_Initialise",200,!taskid%,"DeadDuck" TO ,task_handle%
  610ON ERROR LOCAL PROCerror(ERR, REPORT$):PROCterminate
  620LOCAL ERROR
  630N%=2
  640xr%=0
  650PROCmode
  660B%=136
  670p%=q%+4
  680!p%=0:p%!4=B%:p%!8=R%:p%!12=T%
  690p%!16=0:p%!20=T%
  700p%!24=-2:p%!28=&8C0:p%!32=&4040407:p%!36=0
  710p%!40=0:p%!44=B%:p%!48=R%:p%!52=T%
  720FOR I%=56 TO 87:p%?I%=0:NEXT
  730p%!60=&3000
  740SYS "Wimp_CreateWindow",,p% TO DuckWindow%
  750!q%=DuckWindow%
  760SYS "Wimp_OpenWindow",,q%
  770PROCLoadducks
  780PROCsetupmenu
  790s1%!16=&40000102:s1%!24=sar%:s1%!28=0
  800I%=1
  810xr%=R%>>1:dx%=8:count%=1
  820X%=FNMoveDuck
  830Y%=B%
  840LastX%=xr%:LastDuck%=1
  850ENDPROC
  870DEFPROCLoadducks
  880LOCAL saddr%
  890REM get file size
  900A%=OPENIN"<DeskDuck$Dir>.SpriteFile":sz%=EXT#A%:CLOSE#A%
  920REM make a sprite area
  930DIM sar% 100+sz%
  940!sar%=100+sz%:sar%!4=0
  950sar%!8=16:sar%!12=16
  960SYS OS_SpriteOp%,&109,sar%
  980REM load sprite file into it
  990SYS OS_SpriteOp%,&10A,sar%,"<DeskDuck$Dir>.SpriteFile"
 1000REM get addresses of the duck sprites
 1010FOR L%=1 TO SpriteTotal%
 1020   SYS OS_SpriteOp%,&118,sar%,"duck"+STR$(L%) TO,,saddr%
 1030   Ducks%(L%)=saddr%
 1040   width%(L%)=(((saddr%!16)+1)*8)-(saddr%!24>>2)-(7-(saddr%!28>>2))
 1050   hieght%(L%)=saddr%!20
 1060NEXTL%
 1070ENDPROC
 1090DEF PROCnull
 1100 X%=FNMoveDuck
 1110 REM Erase old duck
 1120 GCOL 0,11
 1130 REM Look for rectangles
 1140 IF (X%>LastX%) THEN
 1150    !q%=DuckWindow%
 1160    q%!4=LastX%:q%!12=X%
 1170    q%!8=Y%:q%!16=Y%+(hieght%(LastDuck%)<<2)+4
 1180    REM Go for erase rectangles
 1190    SYS &400C9,,q% TO f%
 1200    IF f% THEN
 1210     WHILE f%
 1220      RECTANGLE FILL q%!28,q%!32,q%!36-q%!28,q%!40-q%!32
 1230      SYS &400CA,,q% TO f%
 1240     ENDWHILE
 1250    ENDIF
 1260 ENDIF
 1270 r1%=X%+(width%(I%)<<1)
 1280 r2%=LastX%+(width%(LastDuck%)<<1)
 1290 IF (r1%<r2%)
 1300    !q%=DuckWindow%
 1310    q%!4=r1%:q%!12=r2%
 1320    q%!8=Y%:q%!16=Y%+(hieght%(LastDuck%)<<2)+4
 1330    REM Go for erase rectangles
 1340    SYS &400C9,,q% TO f%
 1350    IF f% THEN
 1360     WHILE f%
 1370      RECTANGLE FILL q%!28,q%!32,q%!36-q%!28,q%!40-q%!32
 1380      SYS &400CA,,q% TO f%
 1390     ENDWHILE
 1400    ENDIF
 1410 ENDIF
 1420 LastX%=X%
 1430 LastDuck%=I%
 1450 IF TIME>dontdisplay% THEN
 1470   REM Paint new duck
 1480   q%!4=X%:q%!12=X%+(width%(I%)<<1)+4
 1490   q%!8=Y%:q%!16=Y%+(hieght%(I%)<<2)+4
 1500 
 1510   SYS &400C9,,q% TO f%
 1520   IF f% THEN
 1530    WHILE f%
 1540     PROCPlotIcon(I%,X%)
 1550     SYS &400CA,,q% TO f%
 1560    ENDWHILE
 1570   ENDIF
 1590 ENDIF
 1610 IF breadthrown% THEN PROCbreadthrow(SpriteTotal%,breadX%)
 1630 IF TIME<dontdisplay% ENDPROC
 1650 REM Chk if pointer over the duck.
 1660 
 1670 SYS &400CF,,q1%
 1690 IF (!q1%>=X%) AND (!q1%<=X%+(width%(I%)<<1)+4) AND (q1%!4>=Y%) AND (q1%!4<=Y%+(hieght%(I%)<<2)+4) AND (q1%!12=DuckWindow%) THEN
 1700     IF (NOT newpointer) THEN
 1710        newpointer=TRUE
 1720        SYS OS_SpriteOp%,&124,sar%,"kill0",2,5,5,0,0
 1730     ENDIF
 1740 ELSE
 1750     IF (newpointer) THEN
 1760        newpointer=FALSE
 1770        SYS &400e9,&24,,"ptr_default",1,0,0,0,0
 1780     ENDIF
 1790 ENDIF
 1800 
 1810 
 1820ENDPROC
 1830:
 1840DEF FNMoveDuck
 1850LOCAL xa%
 1860xr%+=dx%:xa%=xr%
 1870CASE I% OF
 1880 WHEN 1:
 1890   IF breadthrown% AND NOT downstream% THEN
 1900      I%=37:dx%=16
 1910      ELSE
 1920    IF ((breadthrown% AND downstream%) OR ((xr%>R%-200) OR RND(1)<.03)) AND count%<=0 THEN
 1930      radius%=RND(1)*100+50:dx%=0:I%=I%+1:count%=4
 1940      ELSE
 1950      count%-=1
 1960      IF RND(1)>.97 I%=33:count%=8:dx%=4
 1970      IF RND(1)>.97 AND Quacking% THEN I%=36:count%=8:dx%=8
 1980    ENDIF
 1990   ENDIF
 2000 WHEN 16:
 2010   IF breadthrown% AND downstream% THEN
 2020      I%=38:dx%=-16
 2030      ELSE
 2040    IF  ((breadthrown% AND NOT downstream%) OR ((xr%<150) OR RND(1)<.03)) AND count%<=0 THEN
 2050      radius%=RND(1)*100+50:dx%=0:I%=I%+1:count%=4
 2060      ELSE
 2070      count%-=1
 2080      IF RND(1)>.97 AND Quacking% THEN I%=35:count%=8:dx%=-8
 2090    ENDIF
 2100   ENDIF
 2110 WHEN 33:
 2120   count%-=1
 2130   IF count%=0 THEN I%=34:count%=4:dx%=8
 2140 WHEN 34:
 2150   count%-=1
 2160   IF count%=0 THEN I%=1:dx%=8
 2170 WHEN 35:
 2180   IF (count%=8) AND (TIME>dontdisplay%) THEN SOUND 2,-15,7200,20
 2190   count%-=1
 2200   IF count%=0 THEN I%=16:dx%=-8
 2210 WHEN 36:
 2220   IF (count%=8) AND (TIME>dontdisplay%) THEN SOUND 2,-15,7200,20
 2230   count%-=1
 2240   IF count%=0 THEN I%=1:dx%=8
 2250 WHEN 37:
 2260    IF (X%+(width%(I%)<<1))>=breadX% THEN breadthrown%=FALSE:I%=39:count%=4:dx%=8
 2270 WHEN 38:
 2280    IF X%<=(breadX%+(width%(SpriteTotal%)<<1)) THEN breadthrown%=FALSE:I%=40:count%=4:dx%=-8
 2290 WHEN 39:
 2300   count%-=1
 2310   IF count%=0 THEN I%=1:dx%=8
 2320 WHEN 40:
 2330   count%-=1
 2340   IF count%=0 THEN I%=16:dx%=-8
 2350 OTHERWISE
 2360   count%-=1
 2370   xa%=xr%+SIN(((I%<<1)-count%)*PI/32)*radius%
 2380   IF count%=0 THEN
 2390      count%=2
 2400      I%+=1
 2410      IF I%>DuckMax% THEN I%=1:dx%=8:count%=20
 2420      IF I%=16 THEN dx%=-8:count%=20
 2430   ENDIF
 2440ENDCASE
 2450=xa%
 2470DEF PROCbreadthrow(I%,X%)
 2480 q%!4=X%:q%!12=X%+(width%(I%)<<1)+4
 2490 q%!8=Y%:q%!16=Y%+(hieght%(I%)<<2)+4
 2500 SYS &400C9,,q% TO f%
 2510 IF f% THEN
 2520  WHILE f%
 2530   PROCPlotIcon(I%,X%)
 2540   SYS &400CA,,q% TO f%
 2550  ENDWHILE
 2560 ENDIF
 2570ENDPROC
 2590DEF PROCredraw
 2600LOCAL f%
 2610!q%=DuckWindow%
 2620SYS &400C8,,q% TO f%
 2630 WHILE f%
 2640  IF TIME>dontdisplay% PROCPlotIcon(I%,X%)
 2650  IF breadthrown% THEN PROCPlotIcon(SpriteTotal%,breadX%)
 2660  SYS &400CA,,q% TO f%
 2670 ENDWHILE
 2680ENDPROC
 2690:
 2700DEF PROCPlotIcon(I%,xpos%)
 2710 !s1%=xpos%:s1%!4=Y%
 2720 s1%!8=xpos%+4+(width%(I%)<<1):s1%!12=Y%+4+(hieght%(I%)<<2)
 2730 s1%!20=Ducks%(I%)
 2740 SYS &400E2,,s1%
 2750ENDPROC
 2760:
 2770DEF PROCmode
 2780!q%=4:q%!4=5:q%!8=11:q%!12=12:q%!16=-1
 2790SYS "OS_ReadVduVariables",q%,q%
 2800xs%=!q%:ys%=q%!4
 2810R%=(q%!8+1)<<xs%:T%=(q%!12+1)<<ys%
 2820IF xr%>=R% THEN xr%=R%
 2830ENDPROC
 2840:
 2850DEF PROCopen
 2860PROCmode
 2870event%!4=0:event%!8=B%:event%!12=R%:event%!16=T%
 2880SYS "Wimp_SetExtent",!event%,event%+4
 2890SYS "Wimp_OpenWindow",,event%
 2900ENDPROC
 2910:
 2920DEF PROCreceive(message%)
 2930LOCAL my_ref%, type$, option$, I%, pflag%
 2940my_ref% = message%!8
 2950CASE message%!16 OF
 2960 WHEN 0
 2970  PROCterminate
 2980ENDCASE
 2990ENDPROC
 3000:
 3010DEF PROCmenu
 3020CASE !event% OF
 3030 WHEN 0:
 3040  Quacking%=NOT Quacking%
 3050  menu%!28=menu%!28 EOR 1
 3060 WHEN 1: PROCterminate
 3070ENDCASE
 3080SYS "Wimp_GetPointerInfo",,q%
 3090IF (q%!8 AND 1)=1 THEN SYS"Wimp_CreateMenu",,menu%,q%!0-64,q%!4
 3100ENDPROC
 3110:
 3120DEFPROCsetupmenu
 3130LOCAL m%
 3140$menu%="DeskDuck"
 3150menu%?12=7
 3160menu%?13=2
 3170menu%?14=7
 3180menu%?15=0
 3190menu%!16=128
 3200menu%!20=40
 3210menu%!24=0
 3220m%=menu%+28
 3230m%!0=&1
 3240m%!4=0
 3250m%!8=(7<<24)OR %11001
 3260$(m%+12)="Quacking"
 3270m%=m%+24
 3280m%!0=&80
 3290m%!4=0
 3300m%!8=(7<<24)OR %11001
 3310$(m%+12)="Quit"
 3320ENDPROC
 3330:
 3340DEF PROCterminate
 3350SYS"Wimp_CloseDown"
 3360END
 3370:
 3380DEF FNrtoz(s%)
 3390LOCAL n$
 3400WHILE?s%:n$+=CHR$?s%:s%+=1:ENDWHILE
 3410=n$
 3420:
 3430DEF PROCclose
 3440!q%=DuckWindow%:SYS "Wimp_CloseWindow",,q%
 3450ENDPROC
 3460:
 3470DEF PROCmoan(report$)
 3480ERROR &20000,report$
 3490:
 3500DEF PROCerror(err%, report$)
 3510ON ERROR OFF
 3520IF err%<&10100 OR err%>&20000 THEN report$=report$+" internal error "+STR$(ERL)
 3530!error_blk% = err%
 3540$(error_blk%+4)=report$
 3550PROCzero_terminate(error_blk%+4)
 3560SYS "Wimp_ReportError", error_blk%, 1, "DeskDuck"
 3570ENDPROC
 3580:
 3590DEFPROCzero_terminate(S%)
 3600S%?LEN$S% = 0
 3610ENDPROC
 3630DEF PROCShoot
 3640 
 3650 LOCAL J%,T%,S%
 3670 FOR J%=1 TO 3
 3680     SOUND 2,-15,5000,20,J%*5
 3690 NEXT
 3710 IF (dx%>0) THEN S%=40 ELSE S%=45
 3730 FOR J%=1 TO 5
 3750 REM Paint new duck
 3770 q%!4=X%:q%!12=X%+(width%(J%+S%)<<1)+4
 3780 q%!8=Y%:q%!16=Y%+(hieght%(J%+S%)<<2)+4
 3790 
 3800 SYS &400C9,,q% TO f%
 3810 IF f% THEN
 3820  WHILE f%
 3830   PROCPlotIcon(S%+J%,X%)
 3840   SYS &400CA,,q% TO f%
 3850  ENDWHILE
 3860 ENDIF
 3880  T%=TIME:REPEAT UNTIL TIME-T%>3
 3900 NEXT
 3920 newpointer=FALSE
 3930 SYS &400e9,&24,,"ptr_default",1,0,0,0,0
 3940 
 3950 T%=TIME:REPEAT UNTIL TIME-T%>50
 3970 dontdisplay%=TIME+1
 3990ENDPROC

� >!RunImage
%� DeadDuck v1.03: By Stuart Payne
G� Another hand crafted offering from CS_Happening home of DuckDemos
(2� No help at all from Brain the Cat this time.
2� History:
<*� Quacking added 1/5/90 (My Birthday!)
F� Interactive bread 3/5/90
Z	�init
d&� set up the default error handler
n� � �error(�,�$)
x�
�/ ș "Wimp_Poll",poll_mask%,event% � action%
� �despatch_poll
�� �
��
�:
���despatch_poll
� Ȏ action% �
�  � 0: �null
�  � 1: �redraw
�  � 2: �open
�  � 3: �close(!event%)
�5  � 6: � event%!12=DuckWindow% � �>dontdisplay% �
�           Ȏ event%!8 �
�             � 4,1:  � (event%!0>=X%) � (event%!0<=X%+(width%(LastDuck%)<<1)+4) � (event%!4>=Y%) � (event%!4<=Y%+(hieght%(LastDuck%)<<2)+4) �
                       �Shoot
                      �
"D                         � event%!4 < (B%+64) � � breadthrown% �
,.                            breadthrown%=�
6/                            breadX%=!event%
@9                            downstream%=(breadX%<=X%)
JA                            �breadthrow(SpriteTotal%,breadX%)
T                         �
^                     �
h;             � 2: ș &400D4,,menu%,event%!0-64,event%!4
r           �
|          �
�  � 9: �menu
�  � 17,18:�receive(event%)
�  �
� �
��
�:
�� �init
�� �
�	ST%=�
�Ƞ 2
�DuckMax%=32
�dontdisplay%=0
�SpriteTotal%=51
6Quacking%=�:breadthrown%=�:breadX%=0:downstream%=�
OS_SpriteOp%=&2E
newpointer=�
&E� Ducks%(SpriteTotal%),width%(SpriteTotal%),hieght%(SpriteTotal%)
0F� q1% &800, q% &800, event% &800, error_blk% 256,menu% 128, s1% 32
:bufsz%=256
Dpoll_mask% = �(&6004F)
N � taskid% 5: $taskid%="TASK"
X@ș "Wimp_Initialise",200,!taskid%,"DeadDuck" � ,task_handle%
b"� � � �error(�, �$):�terminate
l� �
vN%=2
�	xr%=0
�	�mode
�
B%=136
�p%=q%+4
�"!p%=0:p%!4=B%:p%!8=R%:p%!12=T%
�p%!16=0:p%!20=T%
�.p%!24=-2:p%!28=&8C0:p%!32=&4040407:p%!36=0
�&p%!40=0:p%!44=B%:p%!48=R%:p%!52=T%
�� I%=56 � 87:p%?I%=0:�
�p%!60=&3000
�,ș "Wimp_CreateWindow",,p% � DuckWindow%
�!q%=DuckWindow%
�ș "Wimp_OpenWindow",,q%
�Loadducks
�setupmenu
)s1%!16=&40000102:s1%!24=sar%:s1%!28=0
 I%=1
*xr%=R%>>1:dx%=8:count%=1
4X%=�MoveDuck
>	Y%=B%
HLastX%=xr%:LastDuck%=1
R�
f��Loadducks
p� saddr%
z� get file size
�1A%=�"<DeskDuck$Dir>.SpriteFile":sz%=�#A%:�#A%
�� make a sprite area
�� sar% 100+sz%
�!sar%=100+sz%:sar%!4=0
�sar%!8=16:sar%!12=16
�ș OS_SpriteOp%,&109,sar%
�� load sprite file into it
�9ș OS_SpriteOp%,&10A,sar%,"<DeskDuck$Dir>.SpriteFile"
�'� get addresses of the duck sprites
�� L%=1 � SpriteTotal%
�7   ș OS_SpriteOp%,&118,sar%,"duck"+�(L%) �,,saddr%
   Ducks%(L%)=saddr%
G   width%(L%)=(((saddr%!16)+1)*8)-(saddr%!24>>2)-(7-(saddr%!28>>2))
   hieght%(L%)=saddr%!20
$�L%
.�
B� �null
L X%=�MoveDuck
V � Erase old duck
` � 0,11
j � Look for rectangles
t � (X%>LastX%) �
~    !q%=DuckWindow%
�    q%!4=LastX%:q%!12=X%
�2    q%!8=Y%:q%!16=Y%+(hieght%(LastDuck%)<<2)+4
�!    � Go for erase rectangles
�    ș &400C9,,q% � f%
�    � f% �
�     ȕ f%
�3      ȓ Ȑ q%!28,q%!32,q%!36-q%!28,q%!40-q%!32
�      ș &400CA,,q% � f%
�
     �
�	    �
� �
� r1%=X%+(width%(I%)<<1)
& r2%=LastX%+(width%(LastDuck%)<<1)

 � (r1%<r2%)
    !q%=DuckWindow%
    q%!4=r1%:q%!12=r2%
(2    q%!8=Y%:q%!16=Y%+(hieght%(LastDuck%)<<2)+4
2!    � Go for erase rectangles
<    ș &400C9,,q% � f%
F    � f% �
P     ȕ f%
Z3      ȓ Ȑ q%!28,q%!32,q%!36-q%!28,q%!40-q%!32
d      ș &400CA,,q% � f%
n
     �
x	    �
� �
� LastX%=X%
� LastDuck%=I%
� � �>dontdisplay% �
�   � Paint new duck
�)   q%!4=X%:q%!12=X%+(width%(I%)<<1)+4
�*   q%!8=Y%:q%!16=Y%+(hieght%(I%)<<2)+4
� 
�   ș &400C9,,q% � f%
�
   � f% �
�
    ȕ f%
     �PlotIcon(I%,X%)
     ș &400CA,,q% � f%
	    �
"   �
6 �
J7 � breadthrown% � �breadthrow(SpriteTotal%,breadX%)
^ � �<dontdisplay% �
r$ � Chk if pointer over the duck.
| 
� ș &400CF,,q1%
�x � (!q1%>=X%) � (!q1%<=X%+(width%(I%)<<1)+4) � (q1%!4>=Y%) � (q1%!4<=Y%+(hieght%(I%)<<2)+4) � (q1%!12=DuckWindow%) �
�     � (� newpointer) �
�        newpointer=�
�7        ș OS_SpriteOp%,&124,sar%,"kill0",2,5,5,0,0
�
     �
� �
�     � (newpointer) �
�        newpointer=�
�2        ș &400e9,&24,,"ptr_default",1,0,0,0,0
�
     �
� �
 
 
�
&:
0� �MoveDuck
:	� xa%
Dxr%+=dx%:xa%=xr%
NȎ I% �
X	 � 1:
b'   � breadthrown% � � downstream% �
l      I%=37:dx%=16
v      �
�R    � ((breadthrown% � downstream%) � ((xr%>R%-200) � �(1)<.03)) � count%<=0 �
�4      radius%=�(1)*100+50:dx%=0:I%=I%+1:count%=4
�      �
�      count%-=1
�)      � �(1)>.97 I%=33:count%=8:dx%=4
�7      � �(1)>.97 � Quacking% � I%=36:count%=8:dx%=8
�	    �
�   �
�
 � 16:
�%   � breadthrown% � downstream% �
�      I%=38:dx%=-16
�      �
�R    �  ((breadthrown% � � downstream%) � ((xr%<150) � �(1)<.03)) � count%<=0 �
4      radius%=�(1)*100+50:dx%=0:I%=I%+1:count%=4
      �
      count%-=1
 8      � �(1)>.97 � Quacking% � I%=35:count%=8:dx%=-8
*	    �
4   �
>
 � 33:
H   count%-=1
R(   � count%=0 � I%=34:count%=4:dx%=8
\
 � 34:
f   count%-=1
p   � count%=0 � I%=1:dx%=8
z
 � 35:
�8   � (count%=8) � (�>dontdisplay%) � � 2,-15,7200,20
�   count%-=1
�    � count%=0 � I%=16:dx%=-8
�
 � 36:
�8   � (count%=8) � (�>dontdisplay%) � � 2,-15,7200,20
�   count%-=1
�   � count%=0 � I%=1:dx%=8
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