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!merry/!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.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

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Filename: !merry/!runimage
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File contents
   10REM>!runimage
   20
   30ON ERROR PROCerror
   40
   50DIM task% 5:$task%="TASK"
   60SYS"Wimp_Initialise",200,!task%,"runonly" TO ,task_handle%
   70SYS"Hourglass_On"
   80PROCinitialise
   90PROCshow_pics
  100SYS"Wimp_CloseDown",task_handle%,task%
  110END
  120
  130
  140DEF PROCinitialise
  150
  160  ON ERROR PROCerror
  170DIM error_blk% 256
  180  PROCcheck_mode_15
  190 DIM general_block% 32
  200 DIM pic_name_table% 240*4
  210 DIM picture_table% 240
  220 DIM picture_length_table% 240
  230 DIM picture_filelength_table% 240
  240 DIM picture_id_table% 60
  250 DIM picture_time_table% 240
  260 DIM icon_table% 240
  270 DIM transition_id_table% 60
  280 DIM palette_table_12% 240
  290 DIM play_palette% 64
  300 DIM screen_buffer% (161*1024)
  310 DIM mode12_buffer% 16
  320 DIM inputlist% 12
  330 DIM outputlist% 12
  340 DIM temp 64
  350 DIM block_no%(256)
  360
  370  PROCscrnbse
  380  PROCread_init_palette
  390
  400  PROCload_assy
  410
  420  PROCload_seq
  430  PROCtimetable
  440  PROCrandom
  450  SYS"Hourglass_Off"
  460ENDPROC
  470
  480
  490
  500
  510
  520
  530
  540
  550
  560DEF PROCshow_pics
  570  LOCAL pic_addr%,ct%,len%,picno%,exit_flag%,ptr_flag%,mx%,my%,mk%
  580  REM flush keyboard
  590  SYS"OS_Byte",21,0
  600  exit_flag%=0
  610  ptr_flag%=0
  620  IF no_of_pics%>0 THEN
  630    *POINTER 0
  640    REPEAT
  650      picno%=1
  660      pic_addr%=picture_table%!(picno%<<2)
  670      len%=picture_length_table%!(picno%<<2):REM 0=uncompressedscreen
  680      PROCload_buffer(len%,pic_addr%,picture_id_table%?(picno%))
  690      PROCset_palette(play_palette%)
  700      PROCcopy_full_screen(screen_buffer%,scrnbase_0%,160)
  710      PROCchoose_pic_delay
  720      picno%=picno%+1
  730      WHILE picno%<=no_of_pics% AND exit_flag%=0
  740        pic_addr%=picture_table%!(picno%<<2)
  750        len%=picture_length_table%!(picno%<<2):REM 0=uncompressedscreen
  760        PROCload_buffer(len%,pic_addr%,picture_id_table%?(picno%))
  770        PROCtransition(transition_id_table%?(picno%-1),transition_time_table%!((picno%-1)<<2))
  780        REM display pic for its given time
  790        PROCchoose_pic_delay
  800        picno%=picno%+1
  810        IF INKEY(1)<>-1 THEN
  820          exit_flag%=1
  830        ENDIF
  840      ENDWHILE
  850    UNTIL exit_flag%=1 OR loop_flag%=0
  860    PROCset_palette(initial_palette%)
  870    *POINTER
  880    SYS"Wimp_ForceRedraw",-1,0,0,1280,1024
  890  ENDIF
  900  VDU 7
  910ENDPROC
  920
  930
  940DEF PROCchoose_pic_delay
  950   IF picture_time_table%!(picno%<<2)>-1 THEN
  960     PROCdelay(picture_time_table%!(picno%<<2))
  970   ELSE
  980     REPEAT
  990       MOUSE mx%,my%,mk%
 1000       IF mk%=4 AND ptr_flag%=0 THEN
 1010         *POINTER
 1020         ptr_flag%=1
 1030       ELSE
 1040         IF mk%<>4 AND ptr_flag%=1 THEN
 1050         *POINTER 0
 1060         ptr_flag%=0
 1070         ENDIF
 1080       ENDIF
 1090     UNTIL mk%=1 OR mk%=2 OR mk%=5 OR mk%=6
 1100   ENDIF
 1110ENDPROC
 1120
 1130DEF PROCload_buffer(length%,picture_addr%,id%)
 1140
 1150    CASE id% OF
 1160      WHEN 0,2
 1170        PROCcopy_full_screen(picture_addr%,screen_buffer%,160)
 1180      WHEN 1,3
 1190        A%=screen_buffer%
 1200        B%=picture_addr%
 1210        C%=length%
 1220        CALL dcoder%
 1230      WHEN 4,6
 1240        PROCsetpalette12(palette_table_12%!(picno%<<2))
 1250        A%=screen_buffer%
 1260        B%=picture_addr%
 1270        C%=mode12_buffer%
 1280        CALL mode_12_to_15%
 1290      WHEN 5,7
 1300        PROCsetpalette12(palette_table_12%!(picno%<<2))
 1310        A%=screen_buffer%
 1320        B%=picture_addr%
 1330        C%=length%
 1340        D%=mode12_buffer%
 1350        CALL dcoder_12%
 1360    ENDCASE
 1370ENDPROC
 1380
 1390DEF PROCdelay(n%)
 1400  TIME=0
 1410  REPEAT
 1430    IF INKEY(1)<>-1 THEN
 1440      exit_flag%=1
 1450    ENDIF
 1470  UNTIL TIME>n% OR exit_flag%=1
 1480ENDPROC
 1490
 1500DEF PROCtransition(id%,t_time%)
 1510
 1520  CASE id% OF
 1530
 1540    WHEN 0:PROCcut
 1550    WHEN 1:PROCd_slide(screen_buffer%,scrnbase_0%,4)
 1560    WHEN 2:PROCh_slide(screen_buffer%,scrnbase_0%,4)
 1570    WHEN 3:PROCh_slots(screen_buffer%,scrnbase_0%,16,8)
 1580    WHEN 4:PROCh_venitian(screen_buffer%,scrnbase_0%,6,2)
 1590    WHEN 5:PROCh_curtains(screen_buffer%,scrnbase_0%,2,1)
 1600    WHEN 6:PROCboth_curtains(screen_buffer%,scrnbase_0%,4,-1)
 1610    WHEN 7:PROCfade(t_time%)
 1620    WHEN 8:PROCd_slide(screen_buffer%,scrnbase_0%,1)
 1630    WHEN 9:PROCh_slide(screen_buffer%,scrnbase_0%,-4)
 1640    WHEN 10:PROClh_slots(screen_buffer%,scrnbase_0%,16,8)
 1650    WHEN 11:PROCh_venitian(screen_buffer%,scrnbase_0%,6,-2)
 1660    WHEN 12:PROCh_curtains(screen_buffer%,scrnbase_0%,2,-1)
 1670    WHEN 13:PROCboth_curtains(screen_buffer%,scrnbase_0%,4,1)
 1680    WHEN 14:PROCfader
 1690    WHEN 15:PROCd_slide(screen_buffer%,scrnbase_0%,2)
 1700    WHEN 16:PROCv_slide(screen_buffer%,scrnbase_0%,8)
 1710    WHEN 17:PROCv_slots(screen_buffer%,scrnbase_0%,32,8)
 1720    WHEN 18:PROCv_venitian(screen_buffer%,scrnbase_0%,12,4)
 1730    WHEN 19:PROCv_curtains(screen_buffer%,scrnbase_0%,4,-1)
 1740    WHEN 20:PROCspiral(screen_buffer%,scrnbase_0%)
 1750    WHEN 21:PROCmatrix8(screen_buffer%,scrnbase_0%)
 1760    WHEN 22:PROCd_slide(screen_buffer%,scrnbase_0%,3)
 1770    WHEN 23:PROCv_slide(screen_buffer%,scrnbase_0%,-8)
 1780    WHEN 24:PROClv_slots(screen_buffer%,scrnbase_0%,32,8)
 1790    WHEN 25:PROCv_venitian(screen_buffer%,scrnbase_0%,12,-4)
 1800    WHEN 26:PROCv_curtains(screen_buffer%,scrnbase_0%,4,1)
 1810    WHEN 27:PROCcj
 1820
 1830  ENDCASE
 1840ENDPROC
 1850
 1860
 1870DEF PROCcut
 1880   PROCcopy_full_screen(screen_buffer%,scrnbase_0%,160)
 1890ENDPROC
 1900
 1910DEF PROCfade(f_time%)
 1920  LOCAL count%,temp%,count1%,x%,y%,n%,temp%
 1930  f_time%=70
 1940  f_time%=((f_time%-30)*695)>>8
 1950  B%=scrnbase_0%
 1960  C%=40
 1970  D%=16
 1980  FOR count%=0 TO 255
 1990    A%=f_time%
 2000    CALL pause%
 2010    A%=screen_buffer%
 2020    n%=block_no%(count%)
 2030    y%=n%>>4
 2040    y%=y%<<4
 2050    x%=n%-y%
 2060    temp%=x%<<5
 2070    x%=temp%+(x%<<3)
 2080    E%=x%
 2090    F%=y%
 2100    G%=x%
 2110    H%=y%
 2120    CALL block_blit1%
 2130 NEXT count%
 2140ENDPROC
 2150
 2160DEF PROCboth_curtains(srce%,dest%,speed%,stp%)
 2170  REM execution time=640/speed% centisecs
 2180  REM If stp%=1 then close (get a shrinking square)
 2190  REM If stp%=-1 then open (get a growing cross)
 2200  LOCAL ct%,inc%,start%,finish%,vstart%,vfinish%
 2210  A%=srce%
 2220  B%=dest%
 2230  inc%=-1
 2240  IF stp%=1 THEN
 2250    start%=0
 2260    finish%=128
 2270    vstart%=0
 2280    vfinish%=320
 2290  ELSE
 2300    start%=128
 2310    finish%=0
 2320    vstart%=320
 2330    vfinish%=0
 2340  ENDIF
 2350  FOR ct%=start% TO finish% STEP stp%
 2360    inc%=inc%+1
 2370    IF (inc% MOD speed%)=0 THEN
 2380      WAIT
 2390    ENDIF
 2400    C%=ct%
 2410    CALL hline%
 2420    C%=255-ct%
 2430    CALL hline%
 2440
 2450    REM next section draws verical lines
 2460    REM the for next loop that encloses it(for horiztl lines)
 2470    REM always finishes before vertical lines
 2480    REM therefore no checks needed
 2490    C%=vstart%
 2500    CALL vline%
 2510    C%=vstart%+stp%
 2520    CALL vline%
 2530    C%=639-vstart%
 2540    CALL vline%
 2550    C%=639-(vstart%+stp%)
 2560    CALL vline%
 2570    vstart%=vstart%+(stp%<<1)
 2580  NEXT ct%
 2590ENDPROC
 2600
 2610
 2620DEF PROCv_curtains(srce%,dest%,speed%,stp%)
 2630  REM execution time=640/speed% centisecs
 2640  REM If stp%=1 then close curtains
 2650  REM If stp%=-1 then open curtains
 2660  LOCAL ct%,inc%,start%,finish%
 2670  A%=srce%
 2680  B%=dest%
 2690  inc%=-1
 2700  IF stp%=1 THEN
 2710    start%=0
 2720    finish%=320
 2730  ELSE
 2740    start%=320
 2750    finish%=0
 2760  ENDIF
 2770  FOR ct%=start% TO finish% STEP stp%
 2780    inc%=inc%+1
 2790    IF (inc% MOD speed%)=0 THEN
 2800      WAIT
 2810    ENDIF
 2820    C%=ct%
 2830    CALL vline%
 2840    C%=639-ct%
 2850    CALL vline%
 2860  NEXT ct%
 2870ENDPROC
 2880
 2890DEF PROCh_curtains(srce%,dest%,speed%,stp%)
 2900
 2910  REM execution time=256/speed%
 2920  REM If stp%=1 then close curtains
 2930  REM If stp%=-1 then open curtains
 2940  LOCAL ct%,inc%,finish%
 2950  A%=srce%
 2960  B%=dest%
 2970  inc%=-1
 2980  IF stp%=1 THEN
 2990    start%=0
 3000    finish%=128
 3010  ELSE
 3020    start%=128
 3030    finish%=0
 3040  ENDIF
 3050  FOR ct%=start% TO finish% STEP stp%
 3060    inc%=inc%+1
 3070    IF (inc% MOD speed%)=0 THEN
 3080      WAIT
 3090    ENDIF
 3100    C%=ct%
 3110    CALL hline%
 3120    C%=255-ct%
 3130    CALL hline%
 3140  NEXT ct%
 3150ENDPROC
 3160
 3170DEF PROCh_venitian(srce%,dest%,speed%,gap%)
 3180  REM execution time =(512/delay%) centisecs
 3190  REM   gap% must be a power of two
 3200  LOCAL ct%,ct1%,inc1%
 3210  A%=srce%
 3220  B%=dest%
 3230  inc1%=-1
 3240  IF gap%<0 THEN
 3250    gapn%=(gap%)<<1
 3260    gap%=0-gap%
 3270    PROCup
 3280    PROCdown
 3290  ELSE
 3300    PROCdown
 3310    gapn%=(0-gap%)<<1
 3320    PROCup
 3330  ENDIF
 3340ENDPROC
 3350
 3360DEF PROCdown
 3370  FOR ct%=0 TO (256-gap%)  STEP gap%<<1
 3380    FOR ct1%=0 TO gap%-1
 3390      inc1%=inc1%+1
 3400      IF (inc1% MOD speed%)=0 THEN
 3410        WAIT
 3420      ENDIF
 3430      C%=ct%+ct1%
 3440      CALL hline%
 3450    NEXT ct1%
 3460  NEXT ct%
 3470ENDPROC
 3480DEF PROCup
 3490  FOR ct%=255 TO gap% STEP gapn%
 3500    FOR ct1%=0 TO gap%-1
 3510      inc1%=inc1%+1
 3520      IF (inc1% MOD speed%)=0 THEN
 3530        WAIT
 3540      ENDIF
 3550      C%=ct%-ct1%
 3560      CALL hline%
 3570    NEXT ct1%
 3580  NEXT ct%
 3590ENDPROC
 3600
 3610DEF PROCv_venitian(srce%,dest%,speed%,gap%)
 3620  REM execution time =(1280/delay%) centisecs
 3630  REM   gap% must be a power of two
 3640  LOCAL ct%,ct1%,inc1%
 3650  A%=srce%
 3660  B%=dest%
 3670  inc1%=-1
 3680  IF gap%<0 THEN
 3690    gapn%=gap%<<1
 3700    gap%=0-gap%
 3710    PROCright
 3720    PROCleft
 3730  ELSE
 3740    PROCleft
 3750    gapn%=(0-gap%)<<1
 3760    PROCright
 3770  ENDIF
 3780ENDPROC
 3790
 3800DEF PROCleft
 3810  FOR ct%=0 TO (640-gap%)  STEP gap%<<1
 3820    FOR ct1%=0 TO gap%-1
 3830      inc1%=inc1%+1
 3840      IF (inc1% MOD speed%)=0 THEN
 3850        WAIT
 3860      ENDIF
 3870      C%=ct%+ct1%
 3880      CALL vline%
 3890    NEXT ct1%
 3900  NEXT ct%
 3910ENDPROC
 3920DEF PROCright
 3930  FOR ct%=639 TO gap% STEP gapn%
 3940    FOR ct1%=0 TO gap%-1
 3950      inc1%=inc1%+1
 3960      IF (inc1% MOD speed%)=0 THEN
 3970        WAIT
 3980      ENDIF
 3990      C%=ct%-ct1%
 4000      CALL vline%
 4010    NEXT ct1%
 4020  NEXT ct%
 4030ENDPROC
 4040
 4050
 4060DEF PROCh_slide(srce%,dest%,speed%)
 4070  REM execution time=510/speed% centisecs
 4080  REM if speed%>0 THEN slide down
 4090  REM if speed%<0 THEN slide up
 4100  LOCAL ct%,ct1%,start%,finish%,start1%,finish1%,inc1%
 4110  IF speed%>0 THEN
 4120    start%=0
 4130    finish%=256-speed%
 4140    start1%=0
 4150    finish1%=speed%-1
 4160    inc1%=1
 4170  ELSE
 4180    start%=255
 4190    finish%=0
 4200    start1%=0
 4210    finish1%=speed%+1
 4220    inc1%=-1
 4230  ENDIF
 4240  A%=srce%
 4250  B%=dest%
 4260  FOR ct%=start% TO finish% STEP speed%
 4270    WAIT
 4280    FOR ct1%=start1% TO finish1% STEP inc1%
 4290      C%=ct%+ct1%
 4300      CALL hline%
 4310    NEXT ct1%
 4320  NEXT ct%
 4330ENDPROC
 4340
 4350DEF PROCv_slide(srce%,dest%,inc%)
 4360  REM If inc%=1 execution time=1280 centisecs
 4370  REM If inc%=2 execution time=640 centisecs
 4380  REM If inc%=4 execution time=320 centisecs
 4390  REM If inc%=8 execution time=160 centisecs
 4400  REM If inc%=16 execution time=80 centisecs
 4410  REM FASTEST=16
 4420  REM if inc%>0 THEN slide down
 4430  REM if inc%<0 THEN slide up
 4440  LOCAL ct%,ct1%,start%,finish%,start1%,finish1%,inc1%
 4450  IF inc%>0 THEN
 4460    start%=0
 4470    finish%=640-inc%
 4480    start1%=0
 4490    finish1%=inc%-1
 4500    inc1%=1
 4510  ELSE
 4520    start%=639
 4530    finish%=0
 4540    start1%=0
 4550    finish1%=inc%+1
 4560    inc1%=-1
 4570  ENDIF
 4580    A%=srce%
 4590    B%=dest%
 4600  FOR ct%=start% TO finish% STEP inc%
 4610    WAIT
 4620    FOR ct1%=start1% TO finish1% STEP inc1%
 4630      C%=ct%+ct1%
 4640      CALL vline%
 4650    NEXT ct1%
 4660  NEXT ct%
 4670ENDPROC
 4680
 4690
 4700DEF PROCd_slide(srce%,dest%,corner%)
 4710  LOCAL ct%,hx%,hy%,hwidth%,hheight%,vx%,vy%,vwidth%,vheight%,ct%
 4720  ct%=0
 4730  CASE corner% OF
 4740    WHEN 1:REM BL CORNER
 4750    hx_inc%=5:hy_inc%=-2:vx_inc%=0:vy_inc%=-2
 4760    hx%=0:hy%=254:vx%=0:vy%=254:rep_end%=640
 4770    WHEN 2:REM TL CORNER
 4780    hx_inc%=5:hy_inc%=0:vx_inc%=0:vy_inc%=+2
 4790    hx%=0:hy%=0:vx%=0:vy%=0:rep_end%=640
 4800    WHEN 3:REM TR CORNER
 4810    hx_inc%=-5:hy_inc%=0:vx_inc%=-5:vy_inc%=2
 4820    hx%=635:hy%=0:vx%=635:vy%=0:rep_end%=-5
 4830    WHEN 4:REM BR CORNER
 4840    hx_inc%=-5:hy_inc%=-2:vx_inc%=-5:vy_inc%=-2
 4850    hx%=635:hy%=254:vx%=635:vy%=254:rep_end%=-5
 4860  ENDCASE
 4870  hwidth%=5
 4880  hheight%=2
 4890  vwidth%=5
 4900  vheight%=2
 4910  A%=srce%
 4920  B%=dest%
 4930  REPEAT
 4940    REM S=GET
 4950    ct%=ct%+1
 4960    C%=hwidth%
 4970    D%=hheight%
 4980    E%=hx%
 4990    F%=hy%
 5000    G%=hx%
 5010    H%=hy%
 5020REM    IF (ct% MOD 2)=0 THEN
 5030      WAIT
 5040REM     ENDIF
 5050    CALL block_blit1%
 5060    hx%=hx%+hx_inc%
 5070    hy%=hy%+hy_inc%
 5080    hheight%=hheight%+2
 5090    C%=vwidth%
 5100    D%=vheight%
 5110    E%=vx%
 5120    F%=vy%
 5130    G%=vx%
 5140    H%=vy%
 5150    CALL block_blit1%
 5160    vy%=vy%+vy_inc%
 5170    vx%=vx%+vx_inc%
 5180    vwidth%=vwidth%+5
 5190  UNTIL hx%=rep_end%
 5200ENDPROC
 5210
 5220DEF PROCover_slider
 5230  PROCcopy_full_screen(screen_buffer%,scrnbase_0%,160)
 5240  FOR c%=0 TO 100000:NEXT c%
 5250  A%=screen_buffer%
 5260  B%=scrnbase_0%
 5270  C%=screen_buffer%
 5280  CALL slide_over%
 5290ENDPROC
 5300
 5310DEF PROCspiral(srce%,dest%)
 5320  A%=srce%
 5330  B%=dest%
 5340  C%=1000   :REM C% DELAY
 5350  CALL spiro%
 5360ENDPROC
 5370
 5380DEF PROCmatrix8(srce%,dest%)
 5390  LOCAL n%,blocsize%,ct%,x%,y%,gridwidth%,gridheight%,square%
 5400  gridwidth%=640>>3
 5410  gridheight%=256>>3
 5420  A%=srce%
 5430  B%=dest%
 5440  n%=gridwidth% DIV 5
 5450  square%=63
 5460  C%=n%
 5470  D%=square%
 5480  E%=temp
 5490  CALL matrix_8%
 5500ENDPROC
 5510
 5520REM **  Initialisation **************************************************
 5530REM *********************************************************************
 5540
 5550
 5560
 5570
 5580
 5590DEF PROCrandom
 5600  LOCAL count%,q%,temp%
 5610  FOR count%=0 TO 255
 5620    block_no%(count%)=count%
 5630  NEXT count%
 5640  FOR count%=255 TO 1 STEP-1
 5650    q%=RND(count%+1)
 5660    q%=q%-1
 5670    temp%=block_no%(count%)
 5680    block_no%(count%)=block_no%(q%)
 5690    block_no%(q%)=temp%
 5700  NEXT count%
 5710ENDPROC
 5720
 5730
 5740DEF PROCscrnbse
 5750
 5760  REM Proc gives base address of screen
 5770  REM in vars scrnbase_0% & screen_buffer%
 5780  !inputlist%=148
 5790  !(inputlist%+4)=-1
 5800  SYS "OS_ReadVduVariables",inputlist%,outputlist%
 5810  scrnbase_0%=!outputlist%
 5820ENDPROC
 5830
 5840DEF PROCerror
 5850  ON ERROR END
 5860     error_blk%!0=ERR
 5870     $(error_blk%+4)=REPORT$
 5880     SYS"Wimp_ReportError",error_blk%,%0001101,"Slide Show"
 5890  SYS"Wimp_CloseDown",task_handle%,task%
 5900  END
 5910ENDPROC
 5920
 5930DEF PROCv_slots(srce%,dest%,slot_width%,speed%)
 5940REM TIME of execution
 5950REM speed%=1 ;640 centisecs
 5960REM speed%=2 ;320 centisecs
 5970REM speed%=4 ;160 centisecs
 5980REM speed%=8 ;80 centisecs
 5990REM speed%=16 ;80 centisecs
 6000REM speed%=32 ;60 centisecs
 6010REM guess max speed=8
 6020LOCAL n%,n1%,ct%
 6030ct%=0
 6040A%=srce%
 6050B%=dest%
 6060FOR n1%=0 TO (slot_width% DIV 2)-1
 6070
 6080  FOR n%=0 TO (640 DIV slot_width%)-1
 6090    C%=(n%*slot_width%)+((n1%)<<1)
 6100    ct%=ct%+1
 6110    IF (ct% MOD speed%)=0 THEN
 6120      WAIT
 6130    ENDIF
 6140    CALL vline%
 6150    C%=C%+1
 6160    CALL vline%
 6170  NEXT n%
 6180NEXT n1%
 6190ENDPROC
 6200
 6210
 6220DEF PROCh_slots(srce%,dest%,slot_width%,speed%)
 6230REM TIME of execution
 6240REM speed%=1 ;512 centisecs
 6250REM speed%=2 ;256 centisecs
 6260REM speed%=4 ;128 centisecs
 6270REM speed%=8 ;64 centisecs
 6280REM speed%=16 ;32 centisecs
 6290REM 16 fastest
 6300
 6310LOCAL n%,n1%,ct%
 6320ct%=0
 6330
 6340A%=srce%
 6350B%=dest%
 6360FOR n1%=0 TO slot_width%-1
 6370  FOR n%=0 TO (256 DIV slot_width%)-1
 6380    C%=(n%*slot_width%)+n1%
 6390    ct%=ct%+1
 6400    IF (ct% MOD speed%)=0 THEN
 6410      WAIT
 6420    ENDIF
 6430    CALL hline%
 6440  NEXT n%
 6450NEXT n1%
 6460ENDPROC
 6470
 6480DEF PROClh_slots(srce%,dest%,slot_width%,speed%)
 6490LOCAL n%,n1%,ct%
 6500ct%=0
 6510
 6520A%=srce%
 6530B%=dest%
 6540FOR n1%=0 TO slot_width%-1
 6550  FOR n%=0 TO (256 DIV slot_width%)-1
 6560    C%=(n%*slot_width%)+slot_width%-1-n1%
 6570    ct%=ct%+1
 6580    IF (ct% MOD speed%)=0 THEN
 6590      WAIT
 6600    ENDIF
 6610    CALL hline%
 6620  NEXT n%
 6630NEXT n1%
 6640ENDPROC
 6650
 6660DEF PROClv_slots(srce%,dest%,slot_width%,speed%)
 6670LOCAL n%,n1%,ct%
 6680ct%=0
 6690A%=srce%
 6700B%=dest%
 6710FOR n1%=0 TO (slot_width% DIV 2)-1
 6720
 6730  FOR n%=0 TO (640 DIV slot_width%)-1
 6740    C%=(n%*slot_width%)+slot_width%-1-((n1%)<<1)
 6750    ct%=ct%+1
 6760    IF (ct% MOD speed%)=0 THEN
 6770      WAIT
 6780    ENDIF
 6790    CALL vline%
 6800    C%=C%-1
 6810    CALL vline%
 6820  NEXT n%
 6830NEXT n1%
 6840ENDPROC
 6850
 6860
 6870DEF PROCload_assy
 6880LOCAL A$(),st%(),len%,path$
 6890DIM A$(20)
 6900DIM st%(20)
 6910
 6920DIM fader% 120
 6930DIM mode_12_to_15%  160
 6940DIM mov_mem_block% 64
 6950DIM comp_dcoder_qtr% 156
 6960DIM comp_dcoder%  164
 6970DIM vline% 100
 6980DIM hline% 56
 6990DIM matrix_8% 300
 7000DIM spiro% 212
 7010DIM slide_over% 140
 7020DIM clipper% 436
 7030DIM block_put% 120
 7040DIM coder% 128
 7050DIM coder_12% 128
 7060DIM dcoder% 60
 7070DIM dcoder_12% 128
 7080DIM scale_1_4% 80
 7090DIM copy_full_screen% 80
 7100DIM pause% 40
 7110DIM block_blit1%  112
 7120
 7130
 7140st%(1)=fader%
 7150st%(2)=mode_12_to_15%
 7160st%(3)=mov_mem_block%
 7170st%(4)=comp_dcoder_qtr%
 7180st%(5)=comp_dcoder%
 7190st%(6)=vline%
 7200st%(7)=hline%
 7210st%(8)=matrix_8%
 7220st%(9)=spiro%
 7230st%(10)=slide_over%
 7240st%(11)=clipper%
 7250st%(12)=block_put%
 7260st%(13)=coder%
 7270st%(14)=dcoder%
 7280st%(15)=scale_1_4%
 7290st%(16)=copy_full_screen%
 7300st%(17)=pause%
 7310st%(18)=block_blit1%
 7320st%(19)=coder_12%
 7330st%(20)=dcoder_12%
 7340
 7350
 7360A$(1)="fader"
 7370A$(2)="mode_12"
 7380A$(3)="mov_mem"
 7390A$(4)="compdqtr"
 7400A$(5)="compdcod"
 7410A$(6)="vline"
 7420A$(7)="hline"
 7430A$(8)="matrix_8"
 7440A$(9)="spiro"
 7450A$(10)="slide_o"
 7460A$(11)="clipper"
 7470A$(12)="blockput"
 7480A$(13)="coder"
 7490A$(14)="dcoder"
 7500A$(15)="scale1/4"
 7510A$(16)="copyfscrn"
 7520A$(17)="pause"
 7530A$(18)="blckblt"
 7540A$(19)="coder_12"
 7550A$(20)="dcoder_12"
 7560
 7570SYS"OS_ReadVarVal","obey$dir",pic_name_table%,255,0,3  TO ,,len%
 7580REM control terminate
 7590pic_name_table%?len%=13
 7600files$=$pic_name_table%
 7610
 7620REM files$ is the path name of the applications support files
 7630FOR ct%=1 TO 20
 7640  path$=files$+".assembler."+A$(ct%)
 7650  SYS"OS_File",12,path$,st%(ct%),0
 7660NEXT ct%
 7670
 7680ENDPROC
 7690
 7700DEF PROCgrab_mem(size%)
 7710LOCAL newsize%,diff%
 7720first_free%=HIMEM
 7730SYS"OS_ChangeEnvironment",14,0,0,0 TO ,end_of_mem%
 7740diff%=size%-(end_of_mem%-HIMEM)
 7750newsize%=(end_of_mem%-&8000)+diff%
 7760SYS"Wimp_SlotSize",newsize%,-1
 7770SYS"OS_ChangeEnvironment",14,0,0,0 TO ,end_of_mem%
 7780ENDPROC
 7790
 7800
 7810
 7820DEF PROCmode_change(fl%)
 7830  LOCAL mode%,choice%
 7840  SYS"OS_Byte",135 TO,,mode%
 7850  CASE mode% OF
 7860  WHEN 15,15+128:REM nowt
 7870  OTHERWISE
 7880    error_blk%!0=0
 7890    $(error_blk%+4)="Mode 15 only"
 7900    CASE fl% OF
 7910    WHEN 0
 7920      SYS"Wimp_ReportError",error_blk%,%0001101,"Slide Show"
 7930      SYS"Wimp_SetMode",15
 7940    WHEN 1
 7950      SYS"Wimp_ReportError",error_blk%,%0001111,"Slide Show" TO ,choice%
 7960      IF choice%=1 THEN
 7970        SYS"Wimp_SetMode",15
 7980      ELSE
 7990        SYS"Wimp_CloseDown",task_handle%,task%
 8000        END
 8010      ENDIF
 8020    ENDCASE
 8030  ENDCASE
 8040ENDPROC
 8050
 8060
 8070DEF PROCcj
 8080LOCAL x%,y%
 8090A%=screen_buffer%
 8100B%=scrnbase_0%
 8110C%=80
 8120D%=32
 8130y%=0
 8140REPEAT
 8150  x%=0
 8160  REPEAT
 8170    E%=x%
 8180    F%=y%
 8190    G%=x%
 8200    H%=y%
 8210    WAIT
 8220    CALL block_blit1%
 8230    x%=x%+80
 8240  UNTIL x%>639
 8250y%=y%+32
 8260UNTIL y%>255
 8270ENDPROC
 8280
 8290DEF PROCload_seq
 8300LOCAL f_han%,icons%,memory%,mem$
 8310  f_han%=-1
 8320  path$=files$+".sequence"
 8330  SYS"OS_Find",&40,path$ TO f_han%
 8340    SYS"OS_GBPB",4,f_han%,general_block%,8
 8350  SYS"OS_Find",0,f_han%
 8360  f_han%=-1
 8370  PROCgrab_mem(general_block%!4)
 8380  IF general_block%!4>(end_of_mem%-HIMEM) THEN
 8390    memory%=208+((general_block%!4) DIV 1024)
 8400    memory%=16*((memory% DIV 16)+1)
 8410    mem$=STR$(memory%)
 8420    ERROR 1,"Not enough memory to load sequence,needs "+mem$+"K Free"
 8430  ENDIF
 8440  PROCload_or_save_seq(&40,4,general_block%!4,path$)
 8450  f_han%=-1
 8460  no_of_pics%=general_block%!8
 8470  user_timed_flag%=general_block%!24
 8480  loop_flag%=general_block%!28
 8490  icons%=general_block%!12
 8500  first_free%=general_block%!16
 8510  old_himem%=general_block%!20
 8520  PROCadjust_for_himem
 8530ENDPROC
 8540
 8550DEF PROCload_or_save_seq(ls%,n%,len%,path$)
 8560  f_han%=0
 8570  SYS"OS_Find",ls%,path$ TO f_han%
 8580  SYS"OS_GBPB",n%,f_han%,general_block%,32
 8590  SYS"OS_GBPB",n%,f_han%,pic_name_table%,240*4
 8600  SYS"OS_GBPB",n%,f_han%,picture_table%,240
 8610  SYS"OS_GBPB",n%,f_han%,picture_length_table%,240
 8620  SYS"OS_GBPB",n%,f_han%,picture_filelength_table%,240
 8630  SYS"OS_GBPB",n%,f_han%,picture_id_table%,60
 8640  SYS"OS_GBPB",n%,f_han%,picture_time_table%,240
 8650  SYS"OS_GBPB",n%,f_han%,icon_table%,240
 8660  SYS"OS_GBPB",n%,f_han%,transition_id_table%,60
 8670  SYS"OS_GBPB",n%,f_han%,palette_table_12%,240
 8680  SYS"OS_GBPB",n%,f_han%,play_palette%,64
 8690
 8700  SYS"OS_GBPB",n%,f_han%,HIMEM,len%
 8710SYS"OS_Find",0,f_han%
 8720ENDPROC
 8730
 8740
 8750DEF PROCcheck_mode_15
 8760PROCmode_change(1)
 8770ENDPROC
 8780
 8790
 8800
 8810DEF FNget_filename(path%)
 8820  LOCAL char%,n%,last%
 8830  n%=-1
 8840  REPEAT
 8850    n%=n%+1
 8860    char%=path%?n%
 8870  UNTIL char%=0  OR char%=13
 8880  last%=n%
 8890  REPEAT
 8900    n%=n%-1
 8910    char%=path%?n%
 8920  UNTIL char%=46
 8930  REM 46="."
 8940  path%?last%=13
 8950  =$(path%+(n%+1))
 8960REM ENDFUNCTION
 8970
 8980
 8990
 9000DEF PROCread_init_palette
 9010DIM initial_palette% 64
 9020PROCread_palette(initial_palette%)
 9030ENDPROC
 9040
 9050DEF PROCread_palette(palette%)
 9060LOCAL ct%
 9070FOR ct%=0 TO 15
 9080  SYS"OS_ReadPalette",ct%,16 TO ,,palette%!(ct%<<2)
 9090NEXT ct%
 9100ENDPROC
 9110
 9120DEF PROCset_palette(palette%)
 9130LOCAL ct%
 9140FOR ct%=0 TO 15
 9150  inputlist%?0=ct%
 9160  inputlist%!1=palette%!(ct%<<2)
 9170  SYS"OS_Word",12,inputlist%
 9180NEXT ct%
 9190ENDPROC
 9200
 9210
 9220DEF PROCcopy_full_screen(addr_srce%,addr_dest%,size%)
 9230  A%=addr_srce%
 9240  B%=addr_dest%
 9250  C%=size%
 9260  CALL copy_full_screen%
 9270ENDPROC
 9280
 9290DEF PROCtimetable
 9300  DIM transition_time_table% 128
 9310  transition_time_table%!0=0
 9320  transition_time_table%!4=260
 9330  transition_time_table%!8=130
 9340  transition_time_table%!12=70
 9350  transition_time_table%!16=90
 9360  transition_time_table%!20=130
 9370  transition_time_table%!24=70
 9380  transition_time_table%!28=70
 9390  transition_time_table%!32=260
 9400  transition_time_table%!36=130
 9410  transition_time_table%!40=70
 9420  transition_time_table%!44=90
 9430  transition_time_table%!48=130
 9440  transition_time_table%!52=70
 9450  transition_time_table%!56=10
 9460  transition_time_table%!60=260
 9470  transition_time_table%!64=160
 9480  transition_time_table%!68=80
 9490  transition_time_table%!72=110
 9500  transition_time_table%!76=160
 9510  transition_time_table%!80=110
 9520  transition_time_table%!84=60
 9530  transition_time_table%!88=260
 9540  transition_time_table%!92=160
 9550  transition_time_table%!96=80
 9560  transition_time_table%!100=110
 9570  transition_time_table%!104=160
 9580  transition_time_table%!108=130
 9590  transition_time_table%!112=0
 9600
 9610ENDPROC
 9620
 9630DEF PROCadjust_for_himem
 9640 LOCAL diff%,ct%
 9650 diff%=old_himem%-HIMEM
 9660 FOR ct%=0 TO 236 STEP 4
 9670 picture_table%!ct%=(picture_table%!ct%)-diff%
 9680 icon_table%!ct%=(icon_table%!ct%)-diff%
 9690 palette_table_12%!ct%=(palette_table_12%!ct%)-diff%
 9700 NEXT ct%
 9710ENDPROC
 9720
 9730
 9740DEF PROCsetpalette12(addr%)
 9750mode12_buffer%!0=addr%!0
 9760mode12_buffer%!4=addr%!4
 9770mode12_buffer%!8=addr%!8
 9780mode12_buffer%!12=addr%!12
 9790ENDPROC
 9800
 9810DEF PROCfader
 9820LOCAL w%,xoff%(),n%
 9830DIM xoff%(639)
 9840w%=640
 9850FOR n%=0 TO w%-1
 9860  xoff%(n%)=RND(w%)-1
 9870NEXT n%
 9880
 9890A%=screen_buffer%
 9900B%=scrnbase_0%
 9910WAIT
 9920CALL fader%,xoff%(),block_no%()
 9930ENDPROC

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� � picture_id_table% 60
� � picture_time_table% 240
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" � play_palette% 64
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6 � mode12_buffer% 16
@ � inputlist% 12
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T � temp 64
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00005360  39 29 0d 26 70 0a 77 25  3d 36 34 30 0d 26 7a 11  |9).&p.w%=640.&z.|
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000053f0  05 e1 0d ff                                       |....|
000053f4