Home » Archimedes archive » Acorn User » AU 1995-02.adf » !Dark_DarkHorse » !DarkHorse/WorkHorses/Example/Flash

!DarkHorse/WorkHorses/Example/Flash

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.

Tape/disk: Home » Archimedes archive » Acorn User » AU 1995-02.adf » !Dark_DarkHorse
Filename: !DarkHorse/WorkHorses/Example/Flash
Read OK:
File size: 1BAC bytes
Load address: 0000
Exec address: 0000
Duplicates

There is 1 duplicate copy of this file in the archive:

File contents
   10REM > Flash
   20
   21ON ERROR PRINT ERL,REPORT$:END
   22
   30DIM code% 8192
   40
   50PROCAssemble
   60
   70REM * Set Header information.
   80
   90!(code%+0)  = 1  : REM argument type/number (1 = one argument)
  100!(code%+4)  = 50 : REM argument 1 (default value for argument)
  110!(code%+8)  = 0  : REM argument 2
  120!(code%+12) = 0  : REM argument 3
  130!(code%+16) = 0  : REM argument 4
  140!(code%+20) = 0  : REM argument 5
  150!(code%+24) = 0  : REM argument 6
  160!(code%+28) = 0  : REM argument 7
  170!(code%+32) = 0  : REM argument 8
  180
  190$(code%+36)="<radius of flash>"          : REM help string 1
  200$(code%+68)="randomly flashes circles"   : REM help string 2
  210
  220REM * To test your code :
  230
  240MODE 12
  250
  260A%=1280  :REM screen width.
  270B%=1024  :REM screen height.
  280C%=16    :REM number of colours.
  290D%=0     :REM should be screen base. But I don't need it here.
  300E%=0     :REM should be screen size. But I don't need it here.
  310
  320CALL code%+100  :REM Call Initialisation Code.
  321
  330currcol% = 0
  331
  340FOR n%=1 TO 1000
  350
  360  A%=RND(1280)    :REM random of screen width.
  370  B%=RND(1024)    :REM random of screen height.
  371  currcol%+=1:IF currcol%=16 currcol%=1
  372  C%=currcol%
  380
  390  CALL code%+108  :REM Call Polling Code.
  400
  410NEXT n%
  420
  430CALL code%+104    :REM Call Shutdown Code.
  440
  450END
  460
  470DEFPROCAssemble
  480
  490FOR pass=0 TO 3 STEP 3
  500P%=code%
  510[OPT pass
  520
  530.argument_type
  540EQUD 0
  550
  560.arguments
  570EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
  580
  590.help_strings
  600EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
  610EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
  620
  621B init     ; Jumps to the initialisation routine.
  622           ; this is location code+100
  623
  624B shutdown ; Jumps to the shutdown routine.
  625           ; this is location code+104
  626
  800;-------------------------------------------------
  820.poll ; this is location code+108
  830
  840ADR r11,regs         ; address r0 to space to hold regs.
  850STMIA r11,{r1-r14}   ; preserve regs.
  860
  870;--------------------------------------------------------------------
  880;           ********************************************
  890;           *** YOUR SINGLE POLLING CODE STARTS HERE ***
  900;           ********************************************
  910;            At this moment r0 = random int 0-scr.width
  920;                           r1 = random int 0-scr.height
  930;                           r2 = next gcol number
  940;                           r3 = next tint number
  950
  960; Since r0,r1 are often used for SWI calls, make a copy of the
  970; current r0,r1 into r11,r12 respectively.
  980
  990  MOV r11,r0        ; copy r0 to r11
 1000  MOV r12,r1        ; copy r1 to r12
 1010
 1020; Get address of label 'mystore'. This is my own space for
 1030; two integer values, it is located below after the init.
 1040; code. Also get address of arguments, to read user input.
 1050
 1060  ADR r10,mystore   ; get address of 'mystore' into r10
 1070  ADR r9,arguments  ; get address of 'arguments' into r9
 1080
 1090; Set GCOL and TINT to values passed in r2,r3
 1100
 1110SWI 256+18:SWI 256:MOV r0,r2:SWI "OS_WriteC"
 1120SWI 256+23:SWI 256+17:SWI 256+2:MOV r0,r3:SWI "OS_WriteC"
 1130SWI 256:SWI 256:SWI 256:SWI 256:SWI 256:SWI 256
 1140
 1150; Now draw a circle of radius taken from 'arguments' plot at
 1160; the random values passed in.
 1170
 1200  MOV r0,#4         ; 4 = PLOT code for MOVE.
 1230  MOV r1,r11        ; get new random x from r11
 1240  MOV r2,r12        ; get new random y from r12
 1250  SWI "OS_Plot"     ; perform PLOT, ie MOVE.
 1260  MOV r0,#153       ; 153 = plot code for filled circles.
 1270  LDR r1,[r9,#0]    ; get radius, the first and only argument
 1280  MOV r2,#0         ; 0 into r2.
 1290  SWI "OS_Plot"     ; perform PLOT, ie CIRCLE is now drawn.
 1300
 1310; Set GCOL to black, and draw a circle of radius taken from
 1330; the 'arguments', to plot at co-ordinates read from 'mystore'.
 1340
 1350  SWI 256+18:SWI 256:SWI 256
 1360  SWI 256+23:SWI 256+17:SWI 256+2:SWI 256
 1370  SWI 256:SWI 256:SWI 256:SWI 256:SWI 256:SWI 256
 1380
 1390; The above SWI calls is a VDU sequence to set GCOL to black.
 1400
 1410  MOV r0,#4         ; 4 = PLOT code for MOVE.
 1420  LDR r1,[r10,#0]   ; get old x-ordinate from 'mystore'.
 1430  LDR r2,[r10,#4]   ; get old y-ordinate from 'mystore'.
 1440  SWI "OS_Plot"     ; perform PLOT, ie MOVE.
 1450  MOV r0,#153       ; 153 = plot code for filled circles.
 1460  LDR r1,[r9,#0]    ; get radius, the first and only argument
 1470  MOV r2,#0         ; 0 into r2.
 1480  SWI "OS_Plot"     ; perform PLOT, ie CIRCLE is now drawn.
 1490
 1500; Now store the new random values, currently in r11,r12 into
 1510; 'mystore'.
 1520
 1530  STR r11,[r10,#0]  ; store x-random value to 'mystore'
 1540  STR r12,[r10,#4]  ; store y-random value to 'mystore'+4
 1550
 1790; that's it. The statements below will handle the exit procedure.
 1800
 1810;           ********************************************
 1820;           ***  YOUR SINGLE POLLING CODE ENDS HERE  ***
 1830;           ********************************************
 1840;--------------------------------------------------------------------
 1850
 1860ADR r11,regs         ; address r0 to space to hold regs.
 1870LDMIA r11,{r1-r14}  ; restore regs.
 1880MOV PC,r14          ; exit polling code.
 1890
 1900;--------------------------------------------------------------------
 1910
 1920.init ; the initialisation code
 1930
 1940;--------------------------------------------------------------------
 1950;           ********************************************
 1960;           *** YOUR INITIALISATION CODE STARTS HERE ***
 1970;           ********************************************
 1980;               At this moment r0 = screen width
 1990;                              r1 = screen height
 2000;                              r2 = number of colours
 2010;                              r3 = screen base address
 2020;                              r4 = screensize in bytes
 2030;
 2040; doesn't do anything.
 2050;
 2060;           ********************************************
 2070;           ***  YOUR INITIALISATION CODE ENDS HERE  ***
 2080;           ********************************************
 2090;--------------------------------------------------------------------
 2100
 2110MOV PC,r14 ; exit initialisation.
 2120;-----------------------------------------------------------------
 2130
 2140.shutdown ; the shutdown code
 2150
 2160;--------------------------------------------------------------------
 2170;           ********************************************
 2180;           ***    YOUR SHUTDOWN CODE STARTS HERE    ***
 2190;           ********************************************
 2200
 2210; doesn't do anything.
 2220
 2230;           ********************************************
 2240;           ***     YOUR SHUTDOWN CODE ENDS HERE     ***
 2250;           ********************************************
 2260;--------------------------------------------------------------------
 2270MOV PC,r14 ; exit shutdown code.
 2280
 2290
 2300.regs
 2310EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
 2320EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
 2330
 2340; 2 words of space reserved for my polling code variables.
 2350
 2360.mystore
 2370
 2380  EQUD 0 ; x-ordinate
 2390  EQUD 0 ; y-ordinate
 2400
 2410]
 2420NEXT pass
 2430
 2440PRINT code%,P%
 2450
 2460ENDPROC


� > Flash

� � � �,�$:�

� code% 8192
(
2
�Assemble
<
F� * Set Header information.
P
Z@!(code%+0)  = 1  : � argument type/number (1 = one argument)
d@!(code%+4)  = 50 : � argument 1 (default value for argument)
n#!(code%+8)  = 0  : � argument 2
x#!(code%+12) = 0  : � argument 3
�#!(code%+16) = 0  : � argument 4
�#!(code%+20) = 0  : � argument 5
�#!(code%+24) = 0  : � argument 6
�#!(code%+28) = 0  : � argument 7
�#!(code%+32) = 0  : � argument 8
�
�>$(code%+36)="<radius of flash>"          : � help string 1
�>$(code%+68)="randomly flashes circles"   : � help string 2
�
�� * To test your code :
�
�� 12
�
A%=1280  :� screen width.
B%=1024  :� screen height.
"C%=16    :� number of colours.
"@D%=0     :� should be screen base. But I don't need it here.
,@E%=0     :� should be screen size. But I don't need it here.
6
@-� code%+100  :� Call Initialisation Code.
A
Jcurrcol% = 0
K
T� n%=1 � 1000
^
h.  A%=�(1280)    :� random of screen width.
r/  B%=�(1024)    :� random of screen height.
s*  currcol%+=1:� currcol%=16 currcol%=1
t  C%=currcol%
|
�(  � code%+108  :� Call Polling Code.
�
�� n%
�
�)� code%+104    :� Call Shutdown Code.
�
��
�
���Assemble
�
�� pass=0 � 3 � 3
�P%=code%
�
[OPT pass

.argument_type

EQUD 0
&
0.arguments
:;EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
D
N.help_strings
X;EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
b;EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
l
m5B init     ; Jumps to the initialisation routine.
n*           ; this is location code+100
o
p/B shutdown ; Jumps to the shutdown routine.
q*           ; this is location code+104
r
 6;-------------------------------------------------
4%.poll ; this is location code+108
>
H<ADR r11,regs         ; address r0 to space to hold regs.
R)STMIA r11,{r1-r14}   ; preserve regs.
\
fI;--------------------------------------------------------------------
p<;           ********************************************
z:;           *** YOUR �GLE POLLING CODE STARTS HERE ***
�<;           ********************************************
�;;            At this moment r0 = random int 0-scr.width
�<;                           r1 = random int 0-scr.height
�5;                           r2 = next gcol number
�5;                           r3 = next tint number
�
�B; Since r0,r1 are often used for SWI calls, make a copy of the
�.; current r0,r1 into r11,r12 respectively.
�
�(  MOV r11,r0        ; copy r0 to r11
�(  MOV r12,r1        ; copy r1 to r12
�
�>; Get address of label 'mystore'. This is my own space for
=; two integer values, it is located below after the init.
>; code. Also get address of arguments, to read user input.

$;  ADR r10,mystore   ; get address of 'mystore' into r10
.<  ADR r9,arguments  ; get address of 'arguments' into r9
8
B,; Set � and Ȝ to values passed in r2,r3
L
V0SWI 256+18:SWI 256:MOV r0,r2:SWI "OS_WriteC"
`=SWI 256+23:SWI 256+17:SWI 256+2:MOV r0,r3:SWI "OS_WriteC"
j3SWI 256:SWI 256:SWI 256:SWI 256:SWI 256:SWI 256
t
~@; Now draw a circle of radius taken from 'arguments' plot at
�"; the random values passed in.
�
�+  MOV r0,#4         ; 4 = � code for �.
�3  MOV r1,r11        ; get new random x from r11
�3  MOV r2,r12        ; get new random y from r12
�*  SWI "OS_Plot"     ; perform �, ie �.
�=  MOV r0,#153       ; 153 = plot code for filled circles.
�A  LDR r1,[r9,#0]    ; get radius, the first and only argument
$  MOV r2,#0         ; 0 into r2.

8  SWI "OS_Plot"     ; perform �, ie ȏ is now drawn.

<; Set � to black, and draw a circle of radius taken from
2C; the 'arguments', to plot at co-ordinates read from 'mystore'.
<
F   SWI 256+18:SWI 256:SWI 256
P-  SWI 256+23:SWI 256+17:SWI 256+2:SWI 256
Z5  SWI 256:SWI 256:SWI 256:SWI 256:SWI 256:SWI 256
d
n<; The above SWI calls is a � sequence to set � to black.
x
�+  MOV r0,#4         ; 4 = � code for �.
�<  LDR r1,[r10,#0]   ; get old x-ordinate from 'mystore'.
�<  LDR r2,[r10,#4]   ; get old y-ordinate from 'mystore'.
�*  SWI "OS_Plot"     ; perform �, ie �.
�=  MOV r0,#153       ; 153 = plot code for filled circles.
�A  LDR r1,[r9,#0]    ; get radius, the first and only argument
�$  MOV r2,#0         ; 0 into r2.
�8  SWI "OS_Plot"     ; perform �, ie ȏ is now drawn.
�
�@; Now store the new random values, currently in r11,r12 into
�; 'mystore'.
�
�;  STR r11,[r10,#0]  ; store x-random value to 'mystore'
=  STR r12,[r10,#4]  ; store y-random value to 'mystore'+4

�E; that's it. The statements below will handle the exit procedure.

<;           ********************************************
:;           ***  YOUR �GLE POLLING CODE ENDS HERE  ***
&<;           ********************************************
0I;--------------------------------------------------------------------
:
D<ADR r11,regs         ; address r0 to space to hold regs.
N'LDMIA r11,{r1-r14}  ; restore regs.
X,MOV PC,r14          ; exit polling code.
b
lI;--------------------------------------------------------------------
v
�#.init ; the initialisation code
�
�I;--------------------------------------------------------------------
�<;           ********************************************
�<;           *** YOUR INITIALISATION CODE STARTS HERE ***
�<;           ********************************************
�4;               At this moment r0 = screen width
�5;                              r1 = screen height
�9;                              r2 = number of colours
�;;                              r3 = screen base address
�;;                              r4 = screensize in bytes
�;
�; doesn't do anything.
;
<;           ********************************************
<;           ***  YOUR INITIALISATION CODE ENDS HERE  ***
 <;           ********************************************
*I;--------------------------------------------------------------------
4
>%MOV PC,r14 ; exit initialisation.
HF;-----------------------------------------------------------------
R
\!.shutdown ; the shutdown code
f
pI;--------------------------------------------------------------------
z<;           ********************************************
�<;           ***    YOUR SHUTDOWN CODE STARTS HERE    ***
�<;           ********************************************
�
�; doesn't do anything.
�
�<;           ********************************************
�<;           ***     YOUR SHUTDOWN CODE ENDS HERE     ***
�<;           ********************************************
�I;--------------------------------------------------------------------
�$MOV PC,r14 ; exit shutdown code.
�
�
�	.regs
	;EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
	;EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0:EQUD 0
	
	$>; 2 words of space reserved for my polling code variables.
	.
	8.mystore
	B
	L  EQUD 0 ; x-ordinate
	V  EQUD 0 ; y-ordinate
	`
	j]
	t
� pass
	~
	�� code%,P%
	�
	��
�
00000000  0d 00 0a 0d f4 20 3e 20  46 6c 61 73 68 0d 00 14  |..... > Flash...|
00000010  04 0d 00 15 10 ee 20 85  20 f1 20 9e 2c f6 24 3a  |...... . . .,.$:|
00000020  e0 0d 00 16 04 0d 00 1e  10 de 20 63 6f 64 65 25  |.......... code%|
00000030  20 38 31 39 32 0d 00 28  04 0d 00 32 0d f2 41 73  | 8192..(...2..As|
00000040  73 65 6d 62 6c 65 0d 00  3c 04 0d 00 46 1f f4 20  |semble..<...F.. |
00000050  2a 20 53 65 74 20 48 65  61 64 65 72 20 69 6e 66  |* Set Header inf|
00000060  6f 72 6d 61 74 69 6f 6e  2e 0d 00 50 04 0d 00 5a  |ormation...P...Z|
00000070  40 21 28 63 6f 64 65 25  2b 30 29 20 20 3d 20 31  |@!(code%+0)  = 1|
00000080  20 20 3a 20 f4 20 61 72  67 75 6d 65 6e 74 20 74  |  : . argument t|
00000090  79 70 65 2f 6e 75 6d 62  65 72 20 28 31 20 3d 20  |ype/number (1 = |
000000a0  6f 6e 65 20 61 72 67 75  6d 65 6e 74 29 0d 00 64  |one argument)..d|
000000b0  40 21 28 63 6f 64 65 25  2b 34 29 20 20 3d 20 35  |@!(code%+4)  = 5|
000000c0  30 20 3a 20 f4 20 61 72  67 75 6d 65 6e 74 20 31  |0 : . argument 1|
000000d0  20 28 64 65 66 61 75 6c  74 20 76 61 6c 75 65 20  | (default value |
000000e0  66 6f 72 20 61 72 67 75  6d 65 6e 74 29 0d 00 6e  |for argument)..n|
000000f0  23 21 28 63 6f 64 65 25  2b 38 29 20 20 3d 20 30  |#!(code%+8)  = 0|
00000100  20 20 3a 20 f4 20 61 72  67 75 6d 65 6e 74 20 32  |  : . argument 2|
00000110  0d 00 78 23 21 28 63 6f  64 65 25 2b 31 32 29 20  |..x#!(code%+12) |
00000120  3d 20 30 20 20 3a 20 f4  20 61 72 67 75 6d 65 6e  |= 0  : . argumen|
00000130  74 20 33 0d 00 82 23 21  28 63 6f 64 65 25 2b 31  |t 3...#!(code%+1|
00000140  36 29 20 3d 20 30 20 20  3a 20 f4 20 61 72 67 75  |6) = 0  : . argu|
00000150  6d 65 6e 74 20 34 0d 00  8c 23 21 28 63 6f 64 65  |ment 4...#!(code|
00000160  25 2b 32 30 29 20 3d 20  30 20 20 3a 20 f4 20 61  |%+20) = 0  : . a|
00000170  72 67 75 6d 65 6e 74 20  35 0d 00 96 23 21 28 63  |rgument 5...#!(c|
00000180  6f 64 65 25 2b 32 34 29  20 3d 20 30 20 20 3a 20  |ode%+24) = 0  : |
00000190  f4 20 61 72 67 75 6d 65  6e 74 20 36 0d 00 a0 23  |. argument 6...#|
000001a0  21 28 63 6f 64 65 25 2b  32 38 29 20 3d 20 30 20  |!(code%+28) = 0 |
000001b0  20 3a 20 f4 20 61 72 67  75 6d 65 6e 74 20 37 0d  | : . argument 7.|
000001c0  00 aa 23 21 28 63 6f 64  65 25 2b 33 32 29 20 3d  |..#!(code%+32) =|
000001d0  20 30 20 20 3a 20 f4 20  61 72 67 75 6d 65 6e 74  | 0  : . argument|
000001e0  20 38 0d 00 b4 04 0d 00  be 3e 24 28 63 6f 64 65  | 8.......>$(code|
000001f0  25 2b 33 36 29 3d 22 3c  72 61 64 69 75 73 20 6f  |%+36)="<radius o|
00000200  66 20 66 6c 61 73 68 3e  22 20 20 20 20 20 20 20  |f flash>"       |
00000210  20 20 20 3a 20 f4 20 68  65 6c 70 20 73 74 72 69  |   : . help stri|
00000220  6e 67 20 31 0d 00 c8 3e  24 28 63 6f 64 65 25 2b  |ng 1...>$(code%+|
00000230  36 38 29 3d 22 72 61 6e  64 6f 6d 6c 79 20 66 6c  |68)="randomly fl|
00000240  61 73 68 65 73 20 63 69  72 63 6c 65 73 22 20 20  |ashes circles"  |
00000250  20 3a 20 f4 20 68 65 6c  70 20 73 74 72 69 6e 67  | : . help string|
00000260  20 32 0d 00 d2 04 0d 00  dc 1b f4 20 2a 20 54 6f  | 2......... * To|
00000270  20 74 65 73 74 20 79 6f  75 72 20 63 6f 64 65 20  | test your code |
00000280  3a 0d 00 e6 04 0d 00 f0  08 eb 20 31 32 0d 00 fa  |:......... 12...|
00000290  04 0d 01 04 1d 41 25 3d  31 32 38 30 20 20 3a f4  |.....A%=1280  :.|
000002a0  20 73 63 72 65 65 6e 20  77 69 64 74 68 2e 0d 01  | screen width...|
000002b0  0e 1e 42 25 3d 31 30 32  34 20 20 3a f4 20 73 63  |..B%=1024  :. sc|
000002c0  72 65 65 6e 20 68 65 69  67 68 74 2e 0d 01 18 22  |reen height...."|
000002d0  43 25 3d 31 36 20 20 20  20 3a f4 20 6e 75 6d 62  |C%=16    :. numb|
000002e0  65 72 20 6f 66 20 63 6f  6c 6f 75 72 73 2e 0d 01  |er of colours...|
000002f0  22 40 44 25 3d 30 20 20  20 20 20 3a f4 20 73 68  |"@D%=0     :. sh|
00000300  6f 75 6c 64 20 62 65 20  73 63 72 65 65 6e 20 62  |ould be screen b|
00000310  61 73 65 2e 20 42 75 74  20 49 20 64 6f 6e 27 74  |ase. But I don't|
00000320  20 6e 65 65 64 20 69 74  20 68 65 72 65 2e 0d 01  | need it here...|
00000330  2c 40 45 25 3d 30 20 20  20 20 20 3a f4 20 73 68  |,@E%=0     :. sh|
00000340  6f 75 6c 64 20 62 65 20  73 63 72 65 65 6e 20 73  |ould be screen s|
00000350  69 7a 65 2e 20 42 75 74  20 49 20 64 6f 6e 27 74  |ize. But I don't|
00000360  20 6e 65 65 64 20 69 74  20 68 65 72 65 2e 0d 01  | need it here...|
00000370  36 04 0d 01 40 2d d6 20  63 6f 64 65 25 2b 31 30  |6...@-. code%+10|
00000380  30 20 20 3a f4 20 43 61  6c 6c 20 49 6e 69 74 69  |0  :. Call Initi|
00000390  61 6c 69 73 61 74 69 6f  6e 20 43 6f 64 65 2e 0d  |alisation Code..|
000003a0  01 41 04 0d 01 4a 10 63  75 72 72 63 6f 6c 25 20  |.A...J.currcol% |
000003b0  3d 20 30 0d 01 4b 04 0d  01 54 11 e3 20 6e 25 3d  |= 0..K...T.. n%=|
000003c0  31 20 b8 20 31 30 30 30  0d 01 5e 04 0d 01 68 2e  |1 . 1000..^...h.|
000003d0  20 20 41 25 3d b3 28 31  32 38 30 29 20 20 20 20  |  A%=.(1280)    |
000003e0  3a f4 20 72 61 6e 64 6f  6d 20 6f 66 20 73 63 72  |:. random of scr|
000003f0  65 65 6e 20 77 69 64 74  68 2e 0d 01 72 2f 20 20  |een width...r/  |
00000400  42 25 3d b3 28 31 30 32  34 29 20 20 20 20 3a f4  |B%=.(1024)    :.|
00000410  20 72 61 6e 64 6f 6d 20  6f 66 20 73 63 72 65 65  | random of scree|
00000420  6e 20 68 65 69 67 68 74  2e 0d 01 73 2a 20 20 63  |n height...s*  c|
00000430  75 72 72 63 6f 6c 25 2b  3d 31 3a e7 20 63 75 72  |urrcol%+=1:. cur|
00000440  72 63 6f 6c 25 3d 31 36  20 63 75 72 72 63 6f 6c  |rcol%=16 currcol|
00000450  25 3d 31 0d 01 74 11 20  20 43 25 3d 63 75 72 72  |%=1..t.  C%=curr|
00000460  63 6f 6c 25 0d 01 7c 04  0d 01 86 28 20 20 d6 20  |col%..|....(  . |
00000470  63 6f 64 65 25 2b 31 30  38 20 20 3a f4 20 43 61  |code%+108  :. Ca|
00000480  6c 6c 20 50 6f 6c 6c 69  6e 67 20 43 6f 64 65 2e  |ll Polling Code.|
00000490  0d 01 90 04 0d 01 9a 08  ed 20 6e 25 0d 01 a4 04  |......... n%....|
000004a0  0d 01 ae 29 d6 20 63 6f  64 65 25 2b 31 30 34 20  |...). code%+104 |
000004b0  20 20 20 3a f4 20 43 61  6c 6c 20 53 68 75 74 64  |   :. Call Shutd|
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00000550  30 3a 45 51 55 44 20 30  3a 45 51 55 44 20 30 3a  |0:EQUD 0:EQUD 0:|
00000560  45 51 55 44 20 30 3a 45  51 55 44 20 30 3a 45 51  |EQUD 0:EQUD 0:EQ|
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00000580  20 30 0d 02 44 04 0d 02  4e 11 2e 68 65 6c 70 5f  | 0..D...N..help_|
00000590  73 74 72 69 6e 67 73 0d  02 58 3b 45 51 55 44 20  |strings..X;EQUD |
000005a0  30 3a 45 51 55 44 20 30  3a 45 51 55 44 20 30 3a  |0:EQUD 0:EQUD 0:|
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000005c0  55 44 20 30 3a 45 51 55  44 20 30 3a 45 51 55 44  |UD 0:EQUD 0:EQUD|
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00000610  04 0d 02 6d 35 42 20 69  6e 69 74 20 20 20 20 20  |...m5B init     |
00000620  3b 20 4a 75 6d 70 73 20  74 6f 20 74 68 65 20 69  |; Jumps to the i|
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00000640  75 74 69 6e 65 2e 0d 02  6e 2a 20 20 20 20 20 20  |utine...n*      |
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00000660  6f 63 61 74 69 6f 6e 20  63 6f 64 65 2b 31 30 30  |ocation code+100|
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00000680  77 6e 20 3b 20 4a 75 6d  70 73 20 74 6f 20 74 68  |wn ; Jumps to th|
00000690  65 20 73 68 75 74 64 6f  77 6e 20 72 6f 75 74 69  |e shutdown routi|
000006a0  6e 65 2e 0d 02 71 2a 20  20 20 20 20 20 20 20 20  |ne...q*         |
000006b0  20 20 3b 20 74 68 69 73  20 69 73 20 6c 6f 63 61  |  ; this is loca|
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000006d0  04 0d 03 20 36 3b 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |... 6;----------|
000006e0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00000700  2d 2d 2d 2d 2d 2d 2d 0d  03 34 25 2e 70 6f 6c 6c  |-------..4%.poll|
00000710  20 3b 20 74 68 69 73 20  69 73 20 6c 6f 63 61 74  | ; this is locat|
00000720  69 6f 6e 20 63 6f 64 65  2b 31 30 38 0d 03 3e 04  |ion code+108..>.|
00000730  0d 03 48 3c 41 44 52 20  72 31 31 2c 72 65 67 73  |..H<ADR r11,regs|
00000740  20 20 20 20 20 20 20 20  20 3b 20 61 64 64 72 65  |         ; addre|
00000750  73 73 20 72 30 20 74 6f  20 73 70 61 63 65 20 74  |ss r0 to space t|
00000760  6f 20 68 6f 6c 64 20 72  65 67 73 2e 0d 03 52 29  |o hold regs...R)|
00000770  53 54 4d 49 41 20 72 31  31 2c 7b 72 31 2d 72 31  |STMIA r11,{r1-r1|
00000780  34 7d 20 20 20 3b 20 70  72 65 73 65 72 76 65 20  |4}   ; preserve |
00000790  72 65 67 73 2e 0d 03 5c  04 0d 03 66 49 3b 2d 2d  |regs...\...fI;--|
000007a0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
000007e0  2d 2d 0d 03 70 3c 3b 20  20 20 20 20 20 20 20 20  |--..p<;         |
000007f0  20 20 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |  **************|
00000800  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
00000810  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 0d 03  |**************..|
00000820  7a 3a 3b 20 20 20 20 20  20 20 20 20 20 20 2a 2a  |z:;           **|
00000830  2a 20 59 4f 55 52 20 b5  47 4c 45 20 50 4f 4c 4c  |* YOUR .GLE POLL|
00000840  49 4e 47 20 43 4f 44 45  20 53 54 41 52 54 53 20  |ING CODE STARTS |
00000850  48 45 52 45 20 2a 2a 2a  0d 03 84 3c 3b 20 20 20  |HERE ***...<;   |
00000860  20 20 20 20 20 20 20 20  2a 2a 2a 2a 2a 2a 2a 2a  |        ********|
00000870  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000890  2a 2a 2a 2a 0d 03 8e 3b  3b 20 20 20 20 20 20 20  |****...;;       |
000008a0  20 20 20 20 20 41 74 20  74 68 69 73 20 6d 6f 6d  |     At this mom|
000008b0  65 6e 74 20 72 30 20 3d  20 72 61 6e 64 6f 6d 20  |ent r0 = random |
000008c0  69 6e 74 20 30 2d 73 63  72 2e 77 69 64 74 68 0d  |int 0-scr.width.|
000008d0  03 98 3c 3b 20 20 20 20  20 20 20 20 20 20 20 20  |..<;            |
000008e0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 72  |               r|
000008f0  31 20 3d 20 72 61 6e 64  6f 6d 20 69 6e 74 20 30  |1 = random int 0|
00000900  2d 73 63 72 2e 68 65 69  67 68 74 0d 03 a2 35 3b  |-scr.height...5;|
00000910  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000920  20 20 20 20 20 20 20 20  20 20 20 72 32 20 3d 20  |           r2 = |
00000930  6e 65 78 74 20 67 63 6f  6c 20 6e 75 6d 62 65 72  |next gcol number|
00000940  0d 03 ac 35 3b 20 20 20  20 20 20 20 20 20 20 20  |...5;           |
00000950  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000960  72 33 20 3d 20 6e 65 78  74 20 74 69 6e 74 20 6e  |r3 = next tint n|
00000970  75 6d 62 65 72 0d 03 b6  04 0d 03 c0 42 3b 20 53  |umber.......B; S|
00000980  69 6e 63 65 20 72 30 2c  72 31 20 61 72 65 20 6f  |ince r0,r1 are o|
00000990  66 74 65 6e 20 75 73 65  64 20 66 6f 72 20 53 57  |ften used for SW|
000009a0  49 20 63 61 6c 6c 73 2c  20 6d 61 6b 65 20 61 20  |I calls, make a |
000009b0  63 6f 70 79 20 6f 66 20  74 68 65 0d 03 ca 2e 3b  |copy of the....;|
000009c0  20 63 75 72 72 65 6e 74  20 72 30 2c 72 31 20 69  | current r0,r1 i|
000009d0  6e 74 6f 20 72 31 31 2c  72 31 32 20 72 65 73 70  |nto r11,r12 resp|
000009e0  65 63 74 69 76 65 6c 79  2e 0d 03 d4 04 0d 03 de  |ectively........|
000009f0  28 20 20 4d 4f 56 20 72  31 31 2c 72 30 20 20 20  |(  MOV r11,r0   |
00000a00  20 20 20 20 20 3b 20 63  6f 70 79 20 72 30 20 74  |     ; copy r0 t|
00000a10  6f 20 72 31 31 0d 03 e8  28 20 20 4d 4f 56 20 72  |o r11...(  MOV r|
00000a20  31 32 2c 72 31 20 20 20  20 20 20 20 20 3b 20 63  |12,r1        ; c|
00000a30  6f 70 79 20 72 31 20 74  6f 20 72 31 32 0d 03 f2  |opy r1 to r12...|
00000a40  04 0d 03 fc 3e 3b 20 47  65 74 20 61 64 64 72 65  |....>; Get addre|
00000a50  73 73 20 6f 66 20 6c 61  62 65 6c 20 27 6d 79 73  |ss of label 'mys|
00000a60  74 6f 72 65 27 2e 20 54  68 69 73 20 69 73 20 6d  |tore'. This is m|
00000a70  79 20 6f 77 6e 20 73 70  61 63 65 20 66 6f 72 0d  |y own space for.|
00000a80  04 06 3d 3b 20 74 77 6f  20 69 6e 74 65 67 65 72  |..=; two integer|
00000a90  20 76 61 6c 75 65 73 2c  20 69 74 20 69 73 20 6c  | values, it is l|
00000aa0  6f 63 61 74 65 64 20 62  65 6c 6f 77 20 61 66 74  |ocated below aft|
00000ab0  65 72 20 74 68 65 20 69  6e 69 74 2e 0d 04 10 3e  |er the init....>|
00000ac0  3b 20 63 6f 64 65 2e 20  41 6c 73 6f 20 67 65 74  |; code. Also get|
00000ad0  20 61 64 64 72 65 73 73  20 6f 66 20 61 72 67 75  | address of argu|
00000ae0  6d 65 6e 74 73 2c 20 74  6f 20 72 65 61 64 20 75  |ments, to read u|
00000af0  73 65 72 20 69 6e 70 75  74 2e 0d 04 1a 04 0d 04  |ser input.......|
00000b00  24 3b 20 20 41 44 52 20  72 31 30 2c 6d 79 73 74  |$;  ADR r10,myst|
00000b10  6f 72 65 20 20 20 3b 20  67 65 74 20 61 64 64 72  |ore   ; get addr|
00000b20  65 73 73 20 6f 66 20 27  6d 79 73 74 6f 72 65 27  |ess of 'mystore'|
00000b30  20 69 6e 74 6f 20 72 31  30 0d 04 2e 3c 20 20 41  | into r10...<  A|
00000b40  44 52 20 72 39 2c 61 72  67 75 6d 65 6e 74 73 20  |DR r9,arguments |
00000b50  20 3b 20 67 65 74 20 61  64 64 72 65 73 73 20 6f  | ; get address o|
00000b60  66 20 27 61 72 67 75 6d  65 6e 74 73 27 20 69 6e  |f 'arguments' in|
00000b70  74 6f 20 72 39 0d 04 38  04 0d 04 42 2c 3b 20 53  |to r9..8...B,; S|
00000b80  65 74 20 e6 20 61 6e 64  20 c8 9c 20 74 6f 20 76  |et . and .. to v|
00000b90  61 6c 75 65 73 20 70 61  73 73 65 64 20 69 6e 20  |alues passed in |
00000ba0  72 32 2c 72 33 0d 04 4c  04 0d 04 56 30 53 57 49  |r2,r3..L...V0SWI|
00000bb0  20 32 35 36 2b 31 38 3a  53 57 49 20 32 35 36 3a  | 256+18:SWI 256:|
00000bc0  4d 4f 56 20 72 30 2c 72  32 3a 53 57 49 20 22 4f  |MOV r0,r2:SWI "O|
00000bd0  53 5f 57 72 69 74 65 43  22 0d 04 60 3d 53 57 49  |S_WriteC"..`=SWI|
00000be0  20 32 35 36 2b 32 33 3a  53 57 49 20 32 35 36 2b  | 256+23:SWI 256+|
00000bf0  31 37 3a 53 57 49 20 32  35 36 2b 32 3a 4d 4f 56  |17:SWI 256+2:MOV|
00000c00  20 72 30 2c 72 33 3a 53  57 49 20 22 4f 53 5f 57  | r0,r3:SWI "OS_W|
00000c10  72 69 74 65 43 22 0d 04  6a 33 53 57 49 20 32 35  |riteC"..j3SWI 25|
00000c20  36 3a 53 57 49 20 32 35  36 3a 53 57 49 20 32 35  |6:SWI 256:SWI 25|
*
00000c40  36 3a 53 57 49 20 32 35  36 0d 04 74 04 0d 04 7e  |6:SWI 256..t...~|
00000c50  40 3b 20 4e 6f 77 20 64  72 61 77 20 61 20 63 69  |@; Now draw a ci|
00000c60  72 63 6c 65 20 6f 66 20  72 61 64 69 75 73 20 74  |rcle of radius t|
00000c70  61 6b 65 6e 20 66 72 6f  6d 20 27 61 72 67 75 6d  |aken from 'argum|
00000c80  65 6e 74 73 27 20 70 6c  6f 74 20 61 74 0d 04 88  |ents' plot at...|
00000c90  22 3b 20 74 68 65 20 72  61 6e 64 6f 6d 20 76 61  |"; the random va|
00000ca0  6c 75 65 73 20 70 61 73  73 65 64 20 69 6e 2e 0d  |lues passed in..|
00000cb0  04 92 04 0d 04 b0 2b 20  20 4d 4f 56 20 72 30 2c  |......+  MOV r0,|
00000cc0  23 34 20 20 20 20 20 20  20 20 20 3b 20 34 20 3d  |#4         ; 4 =|
00000cd0  20 f0 20 63 6f 64 65 20  66 6f 72 20 ec 2e 0d 04  | . code for ....|
00000ce0  ce 33 20 20 4d 4f 56 20  72 31 2c 72 31 31 20 20  |.3  MOV r1,r11  |
00000cf0  20 20 20 20 20 20 3b 20  67 65 74 20 6e 65 77 20  |      ; get new |
00000d00  72 61 6e 64 6f 6d 20 78  20 66 72 6f 6d 20 72 31  |random x from r1|
00000d10  31 0d 04 d8 33 20 20 4d  4f 56 20 72 32 2c 72 31  |1...3  MOV r2,r1|
00000d20  32 20 20 20 20 20 20 20  20 3b 20 67 65 74 20 6e  |2        ; get n|
00000d30  65 77 20 72 61 6e 64 6f  6d 20 79 20 66 72 6f 6d  |ew random y from|
00000d40  20 72 31 32 0d 04 e2 2a  20 20 53 57 49 20 22 4f  | r12...*  SWI "O|
00000d50  53 5f 50 6c 6f 74 22 20  20 20 20 20 3b 20 70 65  |S_Plot"     ; pe|
00000d60  72 66 6f 72 6d 20 f0 2c  20 69 65 20 ec 2e 0d 04  |rform ., ie ....|
00000d70  ec 3d 20 20 4d 4f 56 20  72 30 2c 23 31 35 33 20  |.=  MOV r0,#153 |
00000d80  20 20 20 20 20 20 3b 20  31 35 33 20 3d 20 70 6c  |      ; 153 = pl|
00000d90  6f 74 20 63 6f 64 65 20  66 6f 72 20 66 69 6c 6c  |ot code for fill|
00000da0  65 64 20 63 69 72 63 6c  65 73 2e 0d 04 f6 41 20  |ed circles....A |
00000db0  20 4c 44 52 20 72 31 2c  5b 72 39 2c 23 30 5d 20  | LDR r1,[r9,#0] |
00000dc0  20 20 20 3b 20 67 65 74  20 72 61 64 69 75 73 2c  |   ; get radius,|
00000dd0  20 74 68 65 20 66 69 72  73 74 20 61 6e 64 20 6f  | the first and o|
00000de0  6e 6c 79 20 61 72 67 75  6d 65 6e 74 0d 05 00 24  |nly argument...$|
00000df0  20 20 4d 4f 56 20 72 32  2c 23 30 20 20 20 20 20  |  MOV r2,#0     |
00000e00  20 20 20 20 3b 20 30 20  69 6e 74 6f 20 72 32 2e  |    ; 0 into r2.|
00000e10  0d 05 0a 38 20 20 53 57  49 20 22 4f 53 5f 50 6c  |...8  SWI "OS_Pl|
00000e20  6f 74 22 20 20 20 20 20  3b 20 70 65 72 66 6f 72  |ot"     ; perfor|
00000e30  6d 20 f0 2c 20 69 65 20  c8 8f 20 69 73 20 6e 6f  |m ., ie .. is no|
00000e40  77 20 64 72 61 77 6e 2e  0d 05 14 04 0d 05 1e 3c  |w drawn........<|
00000e50  3b 20 53 65 74 20 e6 20  74 6f 20 62 6c 61 63 6b  |; Set . to black|
00000e60  2c 20 61 6e 64 20 64 72  61 77 20 61 20 63 69 72  |, and draw a cir|
00000e70  63 6c 65 20 6f 66 20 72  61 64 69 75 73 20 74 61  |cle of radius ta|
00000e80  6b 65 6e 20 66 72 6f 6d  0d 05 32 43 3b 20 74 68  |ken from..2C; th|
00000e90  65 20 27 61 72 67 75 6d  65 6e 74 73 27 2c 20 74  |e 'arguments', t|
00000ea0  6f 20 70 6c 6f 74 20 61  74 20 63 6f 2d 6f 72 64  |o plot at co-ord|
00000eb0  69 6e 61 74 65 73 20 72  65 61 64 20 66 72 6f 6d  |inates read from|
00000ec0  20 27 6d 79 73 74 6f 72  65 27 2e 0d 05 3c 04 0d  | 'mystore'...<..|
00000ed0  05 46 20 20 20 53 57 49  20 32 35 36 2b 31 38 3a  |.F   SWI 256+18:|
00000ee0  53 57 49 20 32 35 36 3a  53 57 49 20 32 35 36 0d  |SWI 256:SWI 256.|
00000ef0  05 50 2d 20 20 53 57 49  20 32 35 36 2b 32 33 3a  |.P-  SWI 256+23:|
00000f00  53 57 49 20 32 35 36 2b  31 37 3a 53 57 49 20 32  |SWI 256+17:SWI 2|
00000f10  35 36 2b 32 3a 53 57 49  20 32 35 36 0d 05 5a 35  |56+2:SWI 256..Z5|
00000f20  20 20 53 57 49 20 32 35  36 3a 53 57 49 20 32 35  |  SWI 256:SWI 25|
00000f30  36 3a 53 57 49 20 32 35  36 3a 53 57 49 20 32 35  |6:SWI 256:SWI 25|
*
00000f50  36 0d 05 64 04 0d 05 6e  3c 3b 20 54 68 65 20 61  |6..d...n<; The a|
00000f60  62 6f 76 65 20 53 57 49  20 63 61 6c 6c 73 20 69  |bove SWI calls i|
00000f70  73 20 61 20 ef 20 73 65  71 75 65 6e 63 65 20 74  |s a . sequence t|
00000f80  6f 20 73 65 74 20 e6 20  74 6f 20 62 6c 61 63 6b  |o set . to black|
00000f90  2e 0d 05 78 04 0d 05 82  2b 20 20 4d 4f 56 20 72  |...x....+  MOV r|
00000fa0  30 2c 23 34 20 20 20 20  20 20 20 20 20 3b 20 34  |0,#4         ; 4|
00000fb0  20 3d 20 f0 20 63 6f 64  65 20 66 6f 72 20 ec 2e  | = . code for ..|
00000fc0  0d 05 8c 3c 20 20 4c 44  52 20 72 31 2c 5b 72 31  |...<  LDR r1,[r1|
00000fd0  30 2c 23 30 5d 20 20 20  3b 20 67 65 74 20 6f 6c  |0,#0]   ; get ol|
00000fe0  64 20 78 2d 6f 72 64 69  6e 61 74 65 20 66 72 6f  |d x-ordinate fro|
00000ff0  6d 20 27 6d 79 73 74 6f  72 65 27 2e 0d 05 96 3c  |m 'mystore'....<|
00001000  20 20 4c 44 52 20 72 32  2c 5b 72 31 30 2c 23 34  |  LDR r2,[r10,#4|
00001010  5d 20 20 20 3b 20 67 65  74 20 6f 6c 64 20 79 2d  |]   ; get old y-|
00001020  6f 72 64 69 6e 61 74 65  20 66 72 6f 6d 20 27 6d  |ordinate from 'm|
00001030  79 73 74 6f 72 65 27 2e  0d 05 a0 2a 20 20 53 57  |ystore'....*  SW|
00001040  49 20 22 4f 53 5f 50 6c  6f 74 22 20 20 20 20 20  |I "OS_Plot"     |
00001050  3b 20 70 65 72 66 6f 72  6d 20 f0 2c 20 69 65 20  |; perform ., ie |
00001060  ec 2e 0d 05 aa 3d 20 20  4d 4f 56 20 72 30 2c 23  |.....=  MOV r0,#|
00001070  31 35 33 20 20 20 20 20  20 20 3b 20 31 35 33 20  |153       ; 153 |
00001080  3d 20 70 6c 6f 74 20 63  6f 64 65 20 66 6f 72 20  |= plot code for |
00001090  66 69 6c 6c 65 64 20 63  69 72 63 6c 65 73 2e 0d  |filled circles..|
000010a0  05 b4 41 20 20 4c 44 52  20 72 31 2c 5b 72 39 2c  |..A  LDR r1,[r9,|
000010b0  23 30 5d 20 20 20 20 3b  20 67 65 74 20 72 61 64  |#0]    ; get rad|
000010c0  69 75 73 2c 20 74 68 65  20 66 69 72 73 74 20 61  |ius, the first a|
000010d0  6e 64 20 6f 6e 6c 79 20  61 72 67 75 6d 65 6e 74  |nd only argument|
000010e0  0d 05 be 24 20 20 4d 4f  56 20 72 32 2c 23 30 20  |...$  MOV r2,#0 |
000010f0  20 20 20 20 20 20 20 20  3b 20 30 20 69 6e 74 6f  |        ; 0 into|
00001100  20 72 32 2e 0d 05 c8 38  20 20 53 57 49 20 22 4f  | r2....8  SWI "O|
00001110  53 5f 50 6c 6f 74 22 20  20 20 20 20 3b 20 70 65  |S_Plot"     ; pe|
00001120  72 66 6f 72 6d 20 f0 2c  20 69 65 20 c8 8f 20 69  |rform ., ie .. i|
00001130  73 20 6e 6f 77 20 64 72  61 77 6e 2e 0d 05 d2 04  |s now drawn.....|
00001140  0d 05 dc 40 3b 20 4e 6f  77 20 73 74 6f 72 65 20  |...@; Now store |
00001150  74 68 65 20 6e 65 77 20  72 61 6e 64 6f 6d 20 76  |the new random v|
00001160  61 6c 75 65 73 2c 20 63  75 72 72 65 6e 74 6c 79  |alues, currently|
00001170  20 69 6e 20 72 31 31 2c  72 31 32 20 69 6e 74 6f  | in r11,r12 into|
00001180  0d 05 e6 10 3b 20 27 6d  79 73 74 6f 72 65 27 2e  |....; 'mystore'.|
00001190  0d 05 f0 04 0d 05 fa 3b  20 20 53 54 52 20 72 31  |.......;  STR r1|
000011a0  31 2c 5b 72 31 30 2c 23  30 5d 20 20 3b 20 73 74  |1,[r10,#0]  ; st|
000011b0  6f 72 65 20 78 2d 72 61  6e 64 6f 6d 20 76 61 6c  |ore x-random val|
000011c0  75 65 20 74 6f 20 27 6d  79 73 74 6f 72 65 27 0d  |ue to 'mystore'.|
000011d0  06 04 3d 20 20 53 54 52  20 72 31 32 2c 5b 72 31  |..=  STR r12,[r1|
000011e0  30 2c 23 34 5d 20 20 3b  20 73 74 6f 72 65 20 79  |0,#4]  ; store y|
000011f0  2d 72 61 6e 64 6f 6d 20  76 61 6c 75 65 20 74 6f  |-random value to|
00001200  20 27 6d 79 73 74 6f 72  65 27 2b 34 0d 06 0e 04  | 'mystore'+4....|
00001210  0d 06 fe 45 3b 20 74 68  61 74 27 73 20 69 74 2e  |...E; that's it.|
00001220  20 54 68 65 20 73 74 61  74 65 6d 65 6e 74 73 20  | The statements |
00001230  62 65 6c 6f 77 20 77 69  6c 6c 20 68 61 6e 64 6c  |below will handl|
00001240  65 20 74 68 65 20 65 78  69 74 20 70 72 6f 63 65  |e the exit proce|
00001250  64 75 72 65 2e 0d 07 08  04 0d 07 12 3c 3b 20 20  |dure........<;  |
00001260  20 20 20 20 20 20 20 20  20 2a 2a 2a 2a 2a 2a 2a  |         *******|
00001270  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00001290  2a 2a 2a 2a 2a 0d 07 1c  3a 3b 20 20 20 20 20 20  |*****...:;      |
000012a0  20 20 20 20 20 2a 2a 2a  20 20 59 4f 55 52 20 b5  |     ***  YOUR .|
000012b0  47 4c 45 20 50 4f 4c 4c  49 4e 47 20 43 4f 44 45  |GLE POLLING CODE|
000012c0  20 45 4e 44 53 20 48 45  52 45 20 20 2a 2a 2a 0d  | ENDS HERE  ***.|
000012d0  07 26 3c 3b 20 20 20 20  20 20 20 20 20 20 20 2a  |.&<;           *|
000012e0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00001300  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 0d 07 30 49 3b  |***********..0I;|
00001310  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00001350  2d 2d 2d 2d 0d 07 3a 04  0d 07 44 3c 41 44 52 20  |----..:...D<ADR |
00001360  72 31 31 2c 72 65 67 73  20 20 20 20 20 20 20 20  |r11,regs        |
00001370  20 3b 20 61 64 64 72 65  73 73 20 72 30 20 74 6f  | ; address r0 to|
00001380  20 73 70 61 63 65 20 74  6f 20 68 6f 6c 64 20 72  | space to hold r|
00001390  65 67 73 2e 0d 07 4e 27  4c 44 4d 49 41 20 72 31  |egs...N'LDMIA r1|
000013a0  31 2c 7b 72 31 2d 72 31  34 7d 20 20 3b 20 72 65  |1,{r1-r14}  ; re|
000013b0  73 74 6f 72 65 20 72 65  67 73 2e 0d 07 58 2c 4d  |store regs...X,M|
000013c0  4f 56 20 50 43 2c 72 31  34 20 20 20 20 20 20 20  |OV PC,r14       |
000013d0  20 20 20 3b 20 65 78 69  74 20 70 6f 6c 6c 69 6e  |   ; exit pollin|
000013e0  67 20 63 6f 64 65 2e 0d  07 62 04 0d 07 6c 49 3b  |g code...b...lI;|
000013f0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00001430  2d 2d 2d 2d 0d 07 76 04  0d 07 80 23 2e 69 6e 69  |----..v....#.ini|
00001440  74 20 3b 20 74 68 65 20  69 6e 69 74 69 61 6c 69  |t ; the initiali|
00001450  73 61 74 69 6f 6e 20 63  6f 64 65 0d 07 8a 04 0d  |sation code.....|
00001460  07 94 49 3b 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |..I;------------|
00001470  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
000014a0  2d 2d 2d 2d 2d 2d 2d 2d  0d 07 9e 3c 3b 20 20 20  |--------...<;   |
000014b0  20 20 20 20 20 20 20 20  2a 2a 2a 2a 2a 2a 2a 2a  |        ********|
000014c0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
000014e0  2a 2a 2a 2a 0d 07 a8 3c  3b 20 20 20 20 20 20 20  |****...<;       |
000014f0  20 20 20 20 2a 2a 2a 20  59 4f 55 52 20 49 4e 49  |    *** YOUR INI|
00001500  54 49 41 4c 49 53 41 54  49 4f 4e 20 43 4f 44 45  |TIALISATION CODE|
00001510  20 53 54 41 52 54 53 20  48 45 52 45 20 2a 2a 2a  | STARTS HERE ***|
00001520  0d 07 b2 3c 3b 20 20 20  20 20 20 20 20 20 20 20  |...<;           |
00001530  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00001550  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 0d 07 bc 34  |************...4|
00001560  3b 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |;               |
00001570  41 74 20 74 68 69 73 20  6d 6f 6d 65 6e 74 20 72  |At this moment r|
00001580  30 20 3d 20 73 63 72 65  65 6e 20 77 69 64 74 68  |0 = screen width|
00001590  0d 07 c6 35 3b 20 20 20  20 20 20 20 20 20 20 20  |...5;           |
000015a0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000015b0  20 20 20 72 31 20 3d 20  73 63 72 65 65 6e 20 68  |   r1 = screen h|
000015c0  65 69 67 68 74 0d 07 d0  39 3b 20 20 20 20 20 20  |eight...9;      |
000015d0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000015e0  20 20 20 20 20 20 20 20  72 32 20 3d 20 6e 75 6d  |        r2 = num|
000015f0  62 65 72 20 6f 66 20 63  6f 6c 6f 75 72 73 0d 07  |ber of colours..|
00001600  da 3b 3b 20 20 20 20 20  20 20 20 20 20 20 20 20  |.;;             |
00001610  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00001620  20 72 33 20 3d 20 73 63  72 65 65 6e 20 62 61 73  | r3 = screen bas|
00001630  65 20 61 64 64 72 65 73  73 0d 07 e4 3b 3b 20 20  |e address...;;  |
00001640  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00001650  20 20 20 20 20 20 20 20  20 20 20 20 72 34 20 3d  |            r4 =|
00001660  20 73 63 72 65 65 6e 73  69 7a 65 20 69 6e 20 62  | screensize in b|
00001670  79 74 65 73 0d 07 ee 05  3b 0d 07 f8 1a 3b 20 64  |ytes....;....; d|
00001680  6f 65 73 6e 27 74 20 64  6f 20 61 6e 79 74 68 69  |oesn't do anythi|
00001690  6e 67 2e 0d 08 02 05 3b  0d 08 0c 3c 3b 20 20 20  |ng.....;...<;   |
000016a0  20 20 20 20 20 20 20 20  2a 2a 2a 2a 2a 2a 2a 2a  |        ********|
000016b0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
000016d0  2a 2a 2a 2a 0d 08 16 3c  3b 20 20 20 20 20 20 20  |****...<;       |
000016e0  20 20 20 20 2a 2a 2a 20  20 59 4f 55 52 20 49 4e  |    ***  YOUR IN|
000016f0  49 54 49 41 4c 49 53 41  54 49 4f 4e 20 43 4f 44  |ITIALISATION COD|
00001700  45 20 45 4e 44 53 20 48  45 52 45 20 20 2a 2a 2a  |E ENDS HERE  ***|
00001710  0d 08 20 3c 3b 20 20 20  20 20 20 20 20 20 20 20  |.. <;           |
00001720  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00001740  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 0d 08 2a 49  |************..*I|
00001750  3b 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |;---------------|
00001760  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00001790  2d 2d 2d 2d 2d 0d 08 34  04 0d 08 3e 25 4d 4f 56  |-----..4...>%MOV|
000017a0  20 50 43 2c 72 31 34 20  3b 20 65 78 69 74 20 69  | PC,r14 ; exit i|
000017b0  6e 69 74 69 61 6c 69 73  61 74 69 6f 6e 2e 0d 08  |nitialisation...|
000017c0  48 46 3b 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |HF;-------------|
000017d0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00001800  2d 2d 2d 2d 0d 08 52 04  0d 08 5c 21 2e 73 68 75  |----..R...\!.shu|
00001810  74 64 6f 77 6e 20 3b 20  74 68 65 20 73 68 75 74  |tdown ; the shut|
00001820  64 6f 77 6e 20 63 6f 64  65 0d 08 66 04 0d 08 70  |down code..f...p|
00001830  49 3b 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |I;--------------|
00001840  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00001870  2d 2d 2d 2d 2d 2d 0d 08  7a 3c 3b 20 20 20 20 20  |------..z<;     |
00001880  20 20 20 20 20 20 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |      **********|
00001890  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
000018b0  2a 2a 0d 08 84 3c 3b 20  20 20 20 20 20 20 20 20  |**...<;         |
000018c0  20 20 2a 2a 2a 20 20 20  20 59 4f 55 52 20 53 48  |  ***    YOUR SH|
000018d0  55 54 44 4f 57 4e 20 43  4f 44 45 20 53 54 41 52  |UTDOWN CODE STAR|
000018e0  54 53 20 48 45 52 45 20  20 20 20 2a 2a 2a 0d 08  |TS HERE    ***..|
000018f0  8e 3c 3b 20 20 20 20 20  20 20 20 20 20 20 2a 2a  |.<;           **|
00001900  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00001920  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 0d 08 98 04 0d 08  |**********......|
00001930  a2 1a 3b 20 64 6f 65 73  6e 27 74 20 64 6f 20 61  |..; doesn't do a|
00001940  6e 79 74 68 69 6e 67 2e  0d 08 ac 04 0d 08 b6 3c  |nything........<|
00001950  3b 20 20 20 20 20 20 20  20 20 20 20 2a 2a 2a 2a  |;           ****|
00001960  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00001980  2a 2a 2a 2a 2a 2a 2a 2a  0d 08 c0 3c 3b 20 20 20  |********...<;   |
00001990  20 20 20 20 20 20 20 20  2a 2a 2a 20 20 20 20 20  |        ***     |
000019a0  59 4f 55 52 20 53 48 55  54 44 4f 57 4e 20 43 4f  |YOUR SHUTDOWN CO|
000019b0  44 45 20 45 4e 44 53 20  48 45 52 45 20 20 20 20  |DE ENDS HERE    |
000019c0  20 2a 2a 2a 0d 08 ca 3c  3b 20 20 20 20 20 20 20  | ***...<;       |
000019d0  20 20 20 20 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |    ************|
000019e0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00001a00  0d 08 d4 49 3b 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |...I;-----------|
00001a10  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
00001a40  2d 2d 2d 2d 2d 2d 2d 2d  2d 0d 08 de 24 4d 4f 56  |---------...$MOV|
00001a50  20 50 43 2c 72 31 34 20  3b 20 65 78 69 74 20 73  | PC,r14 ; exit s|
00001a60  68 75 74 64 6f 77 6e 20  63 6f 64 65 2e 0d 08 e8  |hutdown code....|
00001a70  04 0d 08 f2 04 0d 08 fc  09 2e 72 65 67 73 0d 09  |..........regs..|
00001a80  06 3b 45 51 55 44 20 30  3a 45 51 55 44 20 30 3a  |.;EQUD 0:EQUD 0:|
00001a90  45 51 55 44 20 30 3a 45  51 55 44 20 30 3a 45 51  |EQUD 0:EQUD 0:EQ|
00001aa0  55 44 20 30 3a 45 51 55  44 20 30 3a 45 51 55 44  |UD 0:EQUD 0:EQUD|
00001ab0  20 30 3a 45 51 55 44 20  30 0d 09 10 3b 45 51 55  | 0:EQUD 0...;EQU|
00001ac0  44 20 30 3a 45 51 55 44  20 30 3a 45 51 55 44 20  |D 0:EQUD 0:EQUD |
00001ad0  30 3a 45 51 55 44 20 30  3a 45 51 55 44 20 30 3a  |0:EQUD 0:EQUD 0:|
00001ae0  45 51 55 44 20 30 3a 45  51 55 44 20 30 3a 45 51  |EQUD 0:EQUD 0:EQ|
00001af0  55 44 20 30 0d 09 1a 04  0d 09 24 3e 3b 20 32 20  |UD 0......$>; 2 |
00001b00  77 6f 72 64 73 20 6f 66  20 73 70 61 63 65 20 72  |words of space r|
00001b10  65 73 65 72 76 65 64 20  66 6f 72 20 6d 79 20 70  |eserved for my p|
00001b20  6f 6c 6c 69 6e 67 20 63  6f 64 65 20 76 61 72 69  |olling code vari|
00001b30  61 62 6c 65 73 2e 0d 09  2e 04 0d 09 38 0c 2e 6d  |ables.......8..m|
00001b40  79 73 74 6f 72 65 0d 09  42 04 0d 09 4c 19 20 20  |ystore..B...L.  |
00001b50  45 51 55 44 20 30 20 3b  20 78 2d 6f 72 64 69 6e  |EQUD 0 ; x-ordin|
00001b60  61 74 65 0d 09 56 19 20  20 45 51 55 44 20 30 20  |ate..V.  EQUD 0 |
00001b70  3b 20 79 2d 6f 72 64 69  6e 61 74 65 0d 09 60 04  |; y-ordinate..`.|
00001b80  0d 09 6a 05 5d 0d 09 74  0a ed 20 70 61 73 73 0d  |..j.]..t.. pass.|
00001b90  09 7e 04 0d 09 88 0e f1  20 63 6f 64 65 25 2c 50  |.~...... code%,P|
00001ba0  25 0d 09 92 04 0d 09 9c  05 e1 0d ff              |%...........|
00001bac