Home » Archimedes archive » Acorn User » AU 1994-06.adf » !WriteDemo_WriteDemo » Modules/Balls/Source
Modules/Balls/Source
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 1994-06.adf » !WriteDemo_WriteDemo |
| Filename: | Modules/Balls/Source |
| Read OK: | ✔ |
| File size: | 1A4E bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM >Balls
20
30ON ERROR SYS "Hourglass_Smash":ERROR 0,(REPORT$+" (internal error code "+STR$(ERL)+")")
40
50REM Fixed variables :
60
70 REM Trigger character for each ball
80 trigger1$ = "w"
90 trigger2$ = "v"
100 trigger3$ = "u"
110 trigger% = TRUE
120
130 REM Maximum number of balls
140 b% = 3
150
160 REM Left of bounding box in pixels
170 lef% = 0
180
190 REM Bottom of bounding box in pixels
200 bot% = 169
210
220 REM Right of bounding box in pixels
230 rig% = 320
240
250 REM Top of bounding box in pixels
260 top% = 0
270
280 REM Gravity: 1<<16 = one line per frame
290 gravity% = (1<<16) / 4
300
310 REM Data for balls
320 REM x = initial x position (y is always above the bounding box)
330 REM xs = horizontal velocity (+ve right) (divisable by 4)
340 REM ys = vertical velocity (+ve downwards)
350 REM x xs ys
360 DATA 290, 4 , 8
370 DATA 50, -4 , 5
380 DATA 170, 4 , 7
390
400
410
420module$ = "Balls"
430
440SYS "Hourglass_On"
450LIBRARY "<Demo$Dir>.FNconvert"
460SYS "OS_File",13,"<Modules$Dir>."+module$+".Sprites" TO spr_exists%,,,,spr_len%
470IF spr_exists% = 0 THEN ERROR 0,(module$+": Sprite file not found")
480PROCassemble
490PROCinit
500
510CASE FNconvert(module$,sprites%) OF
520 WHEN 0
530 OSCLI "SAVE <Modules$Dir>."+module$+".Module "+STR$~code%+" "+STR$~P%
540 OSCLI "SETTYPE <Modules$Dir>."+module$+".Module Data"
550 WHEN -1
560 ERROR 0,(module$+": Sprite file not found")
570 OTHERWISE
580 ERROR 0,(module$+": Sprite width not divisible by 4")
590ENDCASE
600
610SYS "Hourglass_Off"
620END
630
640
650
660DEF PROCassemble
670 len% = (1024 * 2) + spr_len%
680 DIM code% len%
690 FOR pass% = 8 TO 10 STEP 2
700 P% = code%
710 L% = code% + len%
720 [ OPT pass%
730
740
750.init EQUD 0
760.frame EQUD balls - code%
770.end EQUD 0
780
790
800
810.balls STMFD R13!,{R0-R11,R14}
820 ]
830 IF trigger% THEN
840 [OPT pass%
850 MOV R0,#0
860 TST R11,#(1 << (ASC("z") - ASC(trigger1$)))
870 MOVNE R0,#1
880 TST R11,#(1 << (ASC("z") - ASC(trigger2$)))
890 MOVNE R0,#2
900 TST R11,#(1 << (ASC("z") - ASC(trigger3$)))
910 MOVNE R0,#3
920 CMP R0,#0 ; is number_of_balls=0 ?
930 BEQ exit ; if so, exit
940 ]
950 ELSE
960 [OPT pass%
970 MOV R0,#b%
980 ]
990 ENDIF
1000 [OPT pass%
1010
1020 MOV R8,R0 ; r8=number_of_balls
1030 ADR R2,table% ; r2=address of data table
1040.ball_loop LDMIA R2,{R3-R7,R11} ; r3=x position
1050 ; r4=y position
1060 ; r5=x speed
1070 ; r6=y speed
1080 ; r7=ball sprite number
1090 ; r11=y_speed_after_bounce
1100 MOV R9,R4,ASR#16 ; r9=y_pos>>>16
1110 ADD R0,R3,R9,LSL#6 ; r0=x_pos+(x_pos*320)
1120 ADD R0,R0,R9,LSL#8
1130 MOV R1,R7,LSL#11 ; r1=sprite_number*(32*32*2)
1140 BL plot_ball ; plot ball using r0 and r1
1150 ADD R3,R3,R5 ; x_pos=x_pos+x_speed
1160 ADD R4,R4,R6 ; y_pos=y_pos+y_speed
1170 CMP R3,#(rig%-32) ; is x_pos>right_boundary ?
1180 MOVGT R3,#(rig%-32) ; if so, x_pos=right_boundary
1190 MVNGT R5,R5 ; x_speed=(-x_speed)+1
1200 ADDGT R5,R5,#1
1210 CMP R3,#lef% ; is x_pos<left_boundary ?
1220 MOVLT R3,#lef% ; if so, x_pos=left_boundary
1230 MVNLT R5,R5 ; x_speed=(-x_speed)+1
1240 ADDLT R5,R5,#1
1250 CMP R4,#(bot%-32)<<16 ; is y_pos<=bottom_boundary ?
1260 BLE skip ; if so, go to 'skip'
1270 MOV R4,#(bot%-32)<<16 ; y_pos=bottom_boundary
1280 MOV R6,R11 ; y_speed=y_speed_after_bounce
1290
1300.skip ADD R6,R6,#gravity% ; y_speed=y_speed+gravity
1310
1320 STMIA R2!,{R3-R7,R11} ; store away ball data
1330 SUBS R8,R8,#1 ; is there another ball ?
1340 BNE ball_loop ; if so, go to 'ball_loop'
1350.exit LDMFD R13!,{R0-R11,PC} ; exit
1360
1370
1380.table% FNarray(b%*24) ; ball data table
1390
1400
1410 ; On entry - r0 = screen offset
1420 ; r1 = sprite offset
1430
1440.plot_ball STMFD R13!,{R0-R11,R14}
1450 ADD R0,R0,R12 ; r0=screen_off+screen_addr
1460 ADR R2,sprites% ; r2=sprite address
1470 ADD R1,R1,R2 ; r1=sprite_off+sprite_addr
1480 ADD R2,R1,#(32*32) ; r2=mask address
1490 MOV R10,#32 ; r10=number of rows
1500.jump_loop CMP R0,R12 ; is this row on the screen ?
1510 BGE begin ; if so, go to 'begin'
1520
1530 ADD R1,R1,#32 ; if not, sprite_addr+=32
1540 ADD R2,R2,#32 ; mask_addr+=32
1550 ADD R0,R0,#32 ; screen_addr+=32
1560 B end_2 ; go to 'end'
1570
1580.begin ]
1590 FOR loop% = 1 TO 4
1600 [ OPT pass%
1610
1620 LDMIA R1!,{R3-R4} ; r3 and r4 = sprite data
1630 LDMIA R2!,{R5-R6} ; r5 and r6 = mask data
1640 LDMIA R0 ,{R7-R8} ; r7 and r8 = screen data
1650 AND R7,R7,R5 ; screen=screen AND mask
1660 ORR R5,R7,R3 ; mask=screen OR sprite
1670 AND R8,R8,R6 ; above process repeated
1680 ORR R6,R8,R4 ; for the next set of data
1690 STMIA R0!,{R5-R6} ; store r5 and r6 onto screen
1700
1710 ]
1720 NEXT
1730 [OPT pass%
1740
1750.end_2 ADD R0,R0,#(320-32) ; move screen ptr to next row
1760 SUBS R10,R10,#1 ; is there another row ?
1770 BNE jump_loop ; if so, go to 'jump_loop'
1780.plot_end LDMFD R13!,{R0-R11,PC}
1790
1800
1810.sprites% FNarray(spr_len%)
1820
1830
1840 ]
1850 NEXT
1860ENDPROC
1870
1880
1890
1900DEF FNarray(size%)
1910 P% += size%
1920=0
1930
1940
1950
1960DEF PROCinit
1970 LOCAL wid%,hei%,I%,x%,xs%,ys%,pos%
1980
1990 wid% = rig% - lef%
2000 hei% = bot% - top%
2010
2020 FOR I% = 1 TO b%
2030 pos% = table% + ((I%-1) * 24)
2040 READ x%,xs%,ys%
2050 pos%!0 = x%
2060 pos%!4 = ( top% + (bot% - 256) ) << 16
2070 pos%!8 = xs%
2080 pos%!12 = (ys% / 8) << 16
2090 pos%!16 = ( (I% - 1) MOD 3)
2100 pos%!20 = -ys% << 16
2110 NEXT
2120
2130ENDPROC
� >Balls
G� � ș "Hourglass_Smash":� 0,(�$+" (internal error code "+�(�)+")")
(
2� Fixed variables :
<
F' � Trigger character for each ball
P trigger1$ = "w"
Z trigger2$ = "v"
d trigger3$ = "u"
n trigger% = �
x
� � Maximum number of balls
� b% = 3
�
�& � Left of bounding box in pixels
� lef% = 0
�
�( � Bottom of bounding box in pixels
� bot% = 169
�
�' � Right of bounding box in pixels
� rig% = 320
�
�% � Top of bounding box in pixels
top% = 0
+ � Gravity: 1<<16 = one line per frame
" gravity% = (1<<16) / 4
,
6 � Data for balls
@D � x = initial x position (y is always above the bounding box)
J= � xs = horizontal velocity (+ve right) (divisable by 4)
T. � ys = vertical velocity (+ve downwards)
^ � x xs ys
h � 290, 4 , 8
r � 50, -4 , 5
| � 170, 4 , 7
�
�
�
�module$ = "Balls"
�
�ș "Hourglass_On"
� ț "<Demo$Dir>.FNconvert"
�Qș "OS_File",13,"<Modules$Dir>."+module$+".Sprites" � spr_exists%,,,,spr_len%
�?� spr_exists% = 0 � � 0,(module$+": Sprite file not found")
�
�assemble
� �init
�
�#Ȏ �convert(module$,sprites%) �
� 0
F � "SAVE <Modules$Dir>."+module$+".Module "+�~code%+" "+�~P%
9 � "SETTYPE <Modules$Dir>."+module$+".Module Data"
&
� -1
0/ � 0,(module$+": Sprite file not found")
:
D9 � 0,(module$+": Sprite width not divisible by 4")
N�
X
bș "Hourglass_Off"
l�
v
�
�
�� �assemble
�" len% = (1024 * 2) + spr_len%
� � code% len%
� � pass% = 8 � 10 � 2
� P% = code%
� L% = code% + len%
� [ OPT pass%
�
�
�.init EQUD 0
�#.frame EQUD balls - code%
.end EQUD 0
*'.balls STMFD R13!,{R0-R11,R14}
4 ]
> � trigger% �
H [OPT pass%
R MOV R0,#0
\; TST R11,#(1 << (�("z") - �(trigger1$)))
f MOVNE R0,#1
p; TST R11,#(1 << (�("z") - �(trigger2$)))
z MOVNE R0,#2
�; TST R11,#(1 << (�("z") - �(trigger3$)))
� MOVNE R0,#3
�@ CMP R0,#0 ; is number_of_balls=0 ?
�5 BEQ exit ; if so, exit
� ]
� �
� [OPT pass%
� MOV R0,#b%
� ]
� �
� [OPT pass%
�
�= MOV R8,R0 ; r8=number_of_balls
C ADR R2,table% ; r2=address of data table
8.ball_loop LDMIA R2,{R3-R7,R11} ; r3=x position
8 ; r4=y position
$5 ; r5=x speed
.5 ; r6=y speed
8@ ; r7=ball sprite number
BB ; r11=y_speed_after_bounce
L8 MOV R9,R4,ASR#16 ; r9=y_pos>>>16
V? ADD R0,R3,R9,LSL#6 ; r0=x_pos+(x_pos*320)
`$ ADD R0,R0,R9,LSL#8
jE MOV R1,R7,LSL#11 ; r1=sprite_number*(32*32*2)
tC BL plot_ball ; plot ball using r0 and r1
~= ADD R3,R3,R5 ; x_pos=x_pos+x_speed
�= ADD R4,R4,R6 ; y_pos=y_pos+y_speed
�C CMP R3,#(rig%-32) ; is x_pos>right_boundary ?
�E MOVGT R3,#(rig%-32) ; if so, x_pos=right_boundary
�E MVNGT R5,R5 ; x_speed=(-x_speed)+1
� ADDGT R5,R5,#1
�B CMP R3,#lef% ; is x_pos<left_boundary ?
�D MOVLT R3,#lef% ; if so, x_pos=left_boundary
�E MVNLT R5,R5 ; x_speed=(-x_speed)+1
� ADDLT R5,R5,#1
�E CMP R4,#(bot%-32)<<16 ; is y_pos<=bottom_boundary ?
�= BLE skip ; if so, go to 'skip'
�? MOV R4,#(bot%-32)<<16 ; y_pos=bottom_boundary
F MOV R6,R11 ; y_speed=y_speed_after_bounce
A.skip ADD R6,R6,#gravity% ; y_speed=y_speed+gravity
(> STMIA R2!,{R3-R7,R11} ; store away ball data
2A SUBS R8,R8,#1 ; is there another ball ?
<B BNE ball_loop ; if so, go to 'ball_loop'
F..exit LDMFD R13!,{R0-R11,PC} ; exit
P
Z
d8.table% �array(b%*24) ; ball data table
n
x
�. ; On entry - r0 = screen offset
�. ; r1 = sprite offset
�
�'.plot_ball STMFD R13!,{R0-R11,R14}
�D ADD R0,R0,R12 ; r0=screen_off+screen_addr
�< ADR R2,sprites% ; r2=sprite address
�D ADD R1,R1,R2 ; r1=sprite_off+sprite_addr
�: ADD R2,R1,#(32*32) ; r2=mask address
�< MOV R10,#32 ; r10=number of rows
�E.jump_loop CMP R0,R12 ; is this row on the screen ?
�> BGE begin ; if so, go to 'begin'
�
�A ADD R1,R1,#32 ; if not, sprite_addr+=32
A ADD R2,R2,#32 ; mask_addr+=32
A ADD R0,R0,#32 ; screen_addr+=32
= B end_2 ; go to 'end'
"
,.begin ]
6 � loop% = 1 � 4
@ [ OPT pass%
J
TA LDMIA R1!,{R3-R4} ; r3 and r4 = sprite data
^A LDMIA R2!,{R5-R6} ; r5 and r6 = mask data
hA LDMIA R0 ,{R7-R8} ; r7 and r8 = screen data
r< � R7,R7,R5 ; screen=screen � mask
|? �R R5,R7,R3 ; mask=screen � sprite
�> � R8,R8,R6 ; above process repeated
�A �R R6,R8,R4 ; for the next set of data
�E STMIA R0!,{R5-R6} ; store r5 and r6 onto screen
�
� ]
� �
� [OPT pass%
�
�E.end_2 ADD R0,R0,#(320-32) ; move screen ptr to next row
�@ SUBS R10,R10,#1 ; is there another row ?
�B BNE jump_loop ; if so, go to 'jump_loop'
�&.plot_end LDMFD R13!,{R0-R11,PC}
�
.sprites% �array(spr_len%)
&
0 ]
: �
D�
N
X
b
l� �array(size%)
v P% += size%
�=0
�
�
�
� � �init
�$ � wid%,hei%,I%,x%,xs%,ys%,pos%
�
� wid% = rig% - lef%
� hei% = bot% - top%
�
� � I% = 1 � b%
�% pos% = table% + ((I%-1) * 24)
� � x%,xs%,ys%
pos%!0 = x%
/ pos%!4 = ( top% + (bot% - 256) ) << 16
pos%!8 = xs%
! pos%!12 = (ys% / 8) << 16
*! pos%!16 = ( (I% - 1) � 3)
4 pos%!20 = -ys% << 16
> �
H
R�
� 00000000 0d 00 0a 0c f4 20 3e 42 61 6c 6c 73 0d 00 14 04 |..... >Balls....|
00000010 0d 00 1e 47 ee 20 85 20 c8 99 20 22 48 6f 75 72 |...G. . .. "Hour|
00000020 67 6c 61 73 73 5f 53 6d 61 73 68 22 3a 85 20 30 |glass_Smash":. 0|
00000030 2c 28 f6 24 2b 22 20 28 69 6e 74 65 72 6e 61 6c |,(.$+" (internal|
00000040 20 65 72 72 6f 72 20 63 6f 64 65 20 22 2b c3 28 | error code "+.(|
00000050 9e 29 2b 22 29 22 29 0d 00 28 04 0d 00 32 17 f4 |.)+")")..(...2..|
00000060 20 46 69 78 65 64 20 76 61 72 69 61 62 6c 65 73 | Fixed variables|
00000070 20 3a 0d 00 3c 04 0d 00 46 27 20 20 f4 20 54 72 | :..<...F' . Tr|
00000080 69 67 67 65 72 20 63 68 61 72 61 63 74 65 72 20 |igger character |
00000090 66 6f 72 20 65 61 63 68 20 62 61 6c 6c 0d 00 50 |for each ball..P|
000000a0 15 20 20 74 72 69 67 67 65 72 31 24 20 3d 20 22 |. trigger1$ = "|
000000b0 77 22 0d 00 5a 15 20 20 74 72 69 67 67 65 72 32 |w"..Z. trigger2|
000000c0 24 20 3d 20 22 76 22 0d 00 64 15 20 20 74 72 69 |$ = "v"..d. tri|
000000d0 67 67 65 72 33 24 20 3d 20 22 75 22 0d 00 6e 13 |gger3$ = "u"..n.|
000000e0 20 20 74 72 69 67 67 65 72 25 20 20 3d 20 b9 0d | trigger% = ..|
000000f0 00 78 04 0d 00 82 1f 20 20 f4 20 4d 61 78 69 6d |.x..... . Maxim|
00000100 75 6d 20 6e 75 6d 62 65 72 20 6f 66 20 62 61 6c |um number of bal|
00000110 6c 73 0d 00 8c 12 20 20 62 25 20 20 20 20 20 20 |ls.... b% |
00000120 20 3d 20 33 0d 00 96 06 20 20 0d 00 a0 26 20 20 | = 3.... ...& |
00000130 f4 20 4c 65 66 74 20 6f 66 20 62 6f 75 6e 64 69 |. Left of boundi|
00000140 6e 67 20 62 6f 78 20 69 6e 20 70 69 78 65 6c 73 |ng box in pixels|
00000150 0d 00 aa 12 20 20 6c 65 66 25 20 20 20 20 20 3d |.... lef% =|
00000160 20 30 0d 00 b4 06 20 20 0d 00 be 28 20 20 f4 20 | 0.... ...( . |
00000170 42 6f 74 74 6f 6d 20 6f 66 20 62 6f 75 6e 64 69 |Bottom of boundi|
00000180 6e 67 20 62 6f 78 20 69 6e 20 70 69 78 65 6c 73 |ng box in pixels|
00000190 0d 00 c8 14 20 20 62 6f 74 25 20 20 20 20 20 3d |.... bot% =|
000001a0 20 31 36 39 0d 00 d2 04 0d 00 dc 27 20 20 f4 20 | 169.......' . |
000001b0 52 69 67 68 74 20 6f 66 20 62 6f 75 6e 64 69 6e |Right of boundin|
000001c0 67 20 62 6f 78 20 69 6e 20 70 69 78 65 6c 73 0d |g box in pixels.|
000001d0 00 e6 14 20 20 72 69 67 25 20 20 20 20 20 3d 20 |... rig% = |
000001e0 33 32 30 0d 00 f0 04 0d 00 fa 25 20 20 f4 20 54 |320.......% . T|
000001f0 6f 70 20 6f 66 20 62 6f 75 6e 64 69 6e 67 20 62 |op of bounding b|
00000200 6f 78 20 69 6e 20 70 69 78 65 6c 73 0d 01 04 12 |ox in pixels....|
00000210 20 20 74 6f 70 25 20 20 20 20 20 3d 20 30 0d 01 | top% = 0..|
00000220 0e 04 0d 01 18 2b 20 20 f4 20 47 72 61 76 69 74 |.....+ . Gravit|
00000230 79 3a 20 31 3c 3c 31 36 20 3d 20 6f 6e 65 20 6c |y: 1<<16 = one l|
00000240 69 6e 65 20 70 65 72 20 66 72 61 6d 65 0d 01 22 |ine per frame.."|
00000250 1c 20 20 67 72 61 76 69 74 79 25 20 3d 20 28 31 |. gravity% = (1|
00000260 3c 3c 31 36 29 20 2f 20 34 0d 01 2c 04 0d 01 36 |<<16) / 4..,...6|
00000270 16 20 20 f4 20 44 61 74 61 20 66 6f 72 20 62 61 |. . Data for ba|
00000280 6c 6c 73 0d 01 40 44 20 20 f4 20 20 78 20 3d 20 |lls..@D . x = |
00000290 69 6e 69 74 69 61 6c 20 78 20 70 6f 73 69 74 69 |initial x positi|
000002a0 6f 6e 20 28 79 20 69 73 20 61 6c 77 61 79 73 20 |on (y is always |
000002b0 61 62 6f 76 65 20 74 68 65 20 62 6f 75 6e 64 69 |above the boundi|
000002c0 6e 67 20 62 6f 78 29 0d 01 4a 3d 20 20 f4 20 78 |ng box)..J= . x|
000002d0 73 20 3d 20 68 6f 72 69 7a 6f 6e 74 61 6c 20 76 |s = horizontal v|
000002e0 65 6c 6f 63 69 74 79 20 28 2b 76 65 20 72 69 67 |elocity (+ve rig|
000002f0 68 74 29 20 28 64 69 76 69 73 61 62 6c 65 20 62 |ht) (divisable b|
00000300 79 20 34 29 0d 01 54 2e 20 20 f4 20 79 73 20 3d |y 4)..T. . ys =|
00000310 20 76 65 72 74 69 63 61 6c 20 76 65 6c 6f 63 69 | vertical veloci|
00000320 74 79 20 28 2b 76 65 20 64 6f 77 6e 77 61 72 64 |ty (+ve downward|
00000330 73 29 0d 01 5e 16 20 20 f4 20 20 20 20 20 78 20 |s)..^. . x |
00000340 20 78 73 20 20 20 79 73 0d 01 68 15 20 20 dc 20 | xs ys..h. . |
00000350 20 32 39 30 2c 20 20 34 20 2c 20 20 38 0d 01 72 | 290, 4 , 8..r|
00000360 15 20 20 dc 20 20 20 35 30 2c 20 2d 34 20 2c 20 |. . 50, -4 , |
00000370 20 35 0d 01 7c 15 20 20 dc 20 20 31 37 30 2c 20 | 5..|. . 170, |
00000380 20 34 20 2c 20 20 37 0d 01 86 04 0d 01 90 04 0d | 4 , 7.........|
00000390 01 9a 04 0d 01 a4 15 6d 6f 64 75 6c 65 24 20 3d |.......module$ =|
000003a0 20 22 42 61 6c 6c 73 22 0d 01 ae 04 0d 01 b8 15 | "Balls"........|
000003b0 c8 99 20 22 48 6f 75 72 67 6c 61 73 73 5f 4f 6e |.. "Hourglass_On|
000003c0 22 0d 01 c2 1d c8 9b 20 22 3c 44 65 6d 6f 24 44 |"...... "<Demo$D|
000003d0 69 72 3e 2e 46 4e 63 6f 6e 76 65 72 74 22 0d 01 |ir>.FNconvert"..|
000003e0 cc 51 c8 99 20 22 4f 53 5f 46 69 6c 65 22 2c 31 |.Q.. "OS_File",1|
000003f0 33 2c 22 3c 4d 6f 64 75 6c 65 73 24 44 69 72 3e |3,"<Modules$Dir>|
00000400 2e 22 2b 6d 6f 64 75 6c 65 24 2b 22 2e 53 70 72 |."+module$+".Spr|
00000410 69 74 65 73 22 20 b8 20 73 70 72 5f 65 78 69 73 |ites" . spr_exis|
00000420 74 73 25 2c 2c 2c 2c 73 70 72 5f 6c 65 6e 25 0d |ts%,,,,spr_len%.|
00000430 01 d6 3f e7 20 73 70 72 5f 65 78 69 73 74 73 25 |..?. spr_exists%|
00000440 20 3d 20 30 20 8c 20 85 20 30 2c 28 6d 6f 64 75 | = 0 . . 0,(modu|
00000450 6c 65 24 2b 22 3a 20 53 70 72 69 74 65 20 66 69 |le$+": Sprite fi|
00000460 6c 65 20 6e 6f 74 20 66 6f 75 6e 64 22 29 0d 01 |le not found")..|
00000470 e0 0d f2 61 73 73 65 6d 62 6c 65 0d 01 ea 09 f2 |...assemble.....|
00000480 69 6e 69 74 0d 01 f4 04 0d 01 fe 23 c8 8e 20 a4 |init.......#.. .|
00000490 63 6f 6e 76 65 72 74 28 6d 6f 64 75 6c 65 24 2c |convert(module$,|
000004a0 73 70 72 69 74 65 73 25 29 20 ca 0d 02 08 09 20 |sprites%) ..... |
000004b0 20 c9 20 30 0d 02 12 46 20 20 20 20 ff 20 22 53 | . 0...F . "S|
000004c0 41 56 45 20 20 20 20 3c 4d 6f 64 75 6c 65 73 24 |AVE <Modules$|
000004d0 44 69 72 3e 2e 22 2b 6d 6f 64 75 6c 65 24 2b 22 |Dir>."+module$+"|
000004e0 2e 4d 6f 64 75 6c 65 20 22 2b c3 7e 63 6f 64 65 |.Module "+.~code|
000004f0 25 2b 22 20 22 2b c3 7e 50 25 0d 02 1c 39 20 20 |%+" "+.~P%...9 |
00000500 20 20 ff 20 22 53 45 54 54 59 50 45 20 3c 4d 6f | . "SETTYPE <Mo|
00000510 64 75 6c 65 73 24 44 69 72 3e 2e 22 2b 6d 6f 64 |dules$Dir>."+mod|
00000520 75 6c 65 24 2b 22 2e 4d 6f 64 75 6c 65 20 44 61 |ule$+".Module Da|
00000530 74 61 22 0d 02 26 0a 20 20 c9 20 2d 31 0d 02 30 |ta"..&. . -1..0|
00000540 2f 20 20 20 20 85 20 30 2c 28 6d 6f 64 75 6c 65 |/ . 0,(module|
00000550 24 2b 22 3a 20 53 70 72 69 74 65 20 66 69 6c 65 |$+": Sprite file|
00000560 20 6e 6f 74 20 66 6f 75 6e 64 22 29 0d 02 3a 07 | not found")..:.|
00000570 20 20 7f 0d 02 44 39 20 20 20 20 85 20 30 2c 28 | ...D9 . 0,(|
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*
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00001430 20 20 20 20 20 20 20 41 44 44 20 20 20 20 52 30 | ADD R0|
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00001450 3b 20 20 20 20 20 20 20 20 20 73 63 72 65 65 6e |; screen|
00001460 5f 61 64 64 72 2b 3d 33 32 0d 06 18 3d 20 20 20 |_addr+=32...= |
00001470 20 20 20 20 20 20 20 20 42 20 20 20 20 20 20 65 | B e|
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000014a0 20 27 65 6e 64 27 0d 06 22 04 0d 06 2c 10 2e 62 | 'end'.."...,..b|
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00001510 20 20 20 20 4c 44 4d 49 41 20 20 52 31 21 2c 7b | LDMIA R1!,{|
00001520 52 33 2d 52 34 7d 20 20 20 20 20 20 20 3b 20 72 |R3-R4} ; r|
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00001540 65 20 64 61 74 61 0d 06 5e 41 20 20 20 20 20 20 |e data..^A |
00001550 20 20 20 20 20 4c 44 4d 49 41 20 20 52 32 21 2c | LDMIA R2!,|
00001560 7b 52 35 2d 52 36 7d 20 20 20 20 20 20 20 3b 20 |{R5-R6} ; |
00001570 72 35 20 61 6e 64 20 72 36 20 3d 20 20 20 6d 61 |r5 and r6 = ma|
00001580 73 6b 20 64 61 74 61 0d 06 68 41 20 20 20 20 20 |sk data..hA |
00001590 20 20 20 20 20 20 4c 44 4d 49 41 20 20 52 30 20 | LDMIA R0 |
000015a0 2c 7b 52 37 2d 52 38 7d 20 20 20 20 20 20 20 3b |,{R7-R8} ;|
000015b0 20 72 37 20 61 6e 64 20 72 38 20 3d 20 73 63 72 | r7 and r8 = scr|
000015c0 65 65 6e 20 64 61 74 61 0d 06 72 3c 20 20 20 20 |een data..r< |
000015d0 20 20 20 20 20 20 20 80 20 20 20 20 52 37 2c 52 | . R7,R|
000015e0 37 2c 52 35 20 20 20 20 20 20 20 20 20 20 3b 20 |7,R5 ; |
000015f0 73 63 72 65 65 6e 3d 73 63 72 65 65 6e 20 80 20 |screen=screen . |
00001600 6d 61 73 6b 0d 06 7c 3f 20 20 20 20 20 20 20 20 |mask..|? |
00001610 20 20 20 84 52 20 20 20 20 52 35 2c 52 37 2c 52 | .R R5,R7,R|
00001620 33 20 20 20 20 20 20 20 20 20 20 3b 20 20 20 6d |3 ; m|
00001630 61 73 6b 3d 73 63 72 65 65 6e 20 84 20 73 70 72 |ask=screen . spr|
00001640 69 74 65 0d 06 86 3e 20 20 20 20 20 20 20 20 20 |ite...> |
00001650 20 20 80 20 20 20 20 52 38 2c 52 38 2c 52 36 20 | . R8,R8,R6 |
00001660 20 20 20 20 20 20 20 20 20 3b 20 61 62 6f 76 65 | ; above|
00001670 20 70 72 6f 63 65 73 73 20 72 65 70 65 61 74 65 | process repeate|
00001680 64 0d 06 90 41 20 20 20 20 20 20 20 20 20 20 20 |d...A |
00001690 84 52 20 20 20 20 52 36 2c 52 38 2c 52 34 20 20 |.R R6,R8,R4 |
000016a0 20 20 20 20 20 20 20 20 3b 20 66 6f 72 20 74 68 | ; for th|
000016b0 65 20 6e 65 78 74 20 73 65 74 20 6f 66 20 64 61 |e next set of da|
000016c0 74 61 0d 06 9a 45 20 20 20 20 20 20 20 20 20 20 |ta...E |
000016d0 20 53 54 4d 49 41 20 20 52 30 21 2c 7b 52 35 2d | STMIA R0!,{R5-|
000016e0 52 36 7d 20 20 20 20 20 20 20 3b 20 73 74 6f 72 |R6} ; stor|
000016f0 65 20 72 35 20 61 6e 64 20 72 36 20 6f 6e 74 6f |e r5 and r6 onto|
00001700 20 73 63 72 65 65 6e 0d 06 a4 0f 20 20 20 20 20 | screen.... |
00001710 20 20 20 20 20 20 0d 06 ae 12 20 20 20 20 20 20 | .... |
00001720 20 20 20 20 20 20 20 5d 0d 06 b8 10 20 20 20 20 | ].... |
00001730 20 20 20 20 20 20 20 ed 0d 06 c2 19 20 20 20 20 | ..... |
00001740 20 20 20 20 20 20 20 5b 4f 50 54 20 70 61 73 73 | [OPT pass|
00001750 25 0d 06 cc 0f 20 20 20 20 20 20 20 20 20 20 20 |%.... |
00001760 0d 06 d6 45 2e 65 6e 64 5f 32 20 20 20 20 20 41 |...E.end_2 A|
00001770 44 44 20 20 20 20 52 30 2c 52 30 2c 23 28 33 32 |DD R0,R0,#(32|
00001780 30 2d 33 32 29 20 20 20 3b 20 6d 6f 76 65 20 73 |0-32) ; move s|
00001790 63 72 65 65 6e 20 70 74 72 20 74 6f 20 6e 65 78 |creen ptr to nex|
000017a0 74 20 72 6f 77 0d 06 e0 40 20 20 20 20 20 20 20 |t row...@ |
000017b0 20 20 20 20 53 55 42 53 20 20 20 52 31 30 2c 52 | SUBS R10,R|
000017c0 31 30 2c 23 31 20 20 20 20 20 20 20 20 3b 20 69 |10,#1 ; i|
000017d0 73 20 74 68 65 72 65 20 61 6e 6f 74 68 65 72 20 |s there another |
000017e0 72 6f 77 20 3f 0d 06 ea 42 20 20 20 20 20 20 20 |row ?...B |
000017f0 20 20 20 20 42 4e 45 20 20 20 20 6a 75 6d 70 5f | BNE jump_|
00001800 6c 6f 6f 70 20 20 20 20 20 20 20 20 20 3b 20 69 |loop ; i|
00001810 66 20 73 6f 2c 20 67 6f 20 74 6f 20 27 6a 75 6d |f so, go to 'jum|
00001820 70 5f 6c 6f 6f 70 27 0d 06 f4 26 2e 70 6c 6f 74 |p_loop'...&.plot|
00001830 5f 65 6e 64 20 20 4c 44 4d 46 44 20 20 52 31 33 |_end LDMFD R13|
00001840 21 2c 7b 52 30 2d 52 31 31 2c 50 43 7d 0d 06 fe |!,{R0-R11,PC}...|
00001850 04 0d 07 08 04 0d 07 12 1f 2e 73 70 72 69 74 65 |..........sprite|
00001860 73 25 20 20 a4 61 72 72 61 79 28 73 70 72 5f 6c |s% .array(spr_l|
00001870 65 6e 25 29 0d 07 1c 04 0d 07 26 04 0d 07 30 09 |en%)......&...0.|
00001880 20 20 20 20 5d 0d 07 3a 07 20 20 ed 0d 07 44 05 | ]..:. ...D.|
00001890 e1 0d 07 4e 04 0d 07 58 04 0d 07 62 04 0d 07 6c |...N...X...b...l|
000018a0 13 dd 20 a4 61 72 72 61 79 28 73 69 7a 65 25 29 |.. .array(size%)|
000018b0 0d 07 76 11 20 20 50 25 20 2b 3d 20 73 69 7a 65 |..v. P% += size|
000018c0 25 0d 07 80 06 3d 30 0d 07 8a 04 0d 07 94 04 0d |%....=0.........|
000018d0 07 9e 04 0d 07 a8 0b dd 20 f2 69 6e 69 74 0d 07 |........ .init..|
000018e0 b2 24 20 20 ea 20 77 69 64 25 2c 68 65 69 25 2c |.$ . wid%,hei%,|
000018f0 49 25 2c 78 25 2c 78 73 25 2c 79 73 25 2c 70 6f |I%,x%,xs%,ys%,po|
00001900 73 25 0d 07 bc 04 0d 07 c6 18 20 20 77 69 64 25 |s%........ wid%|
00001910 20 3d 20 72 69 67 25 20 2d 20 6c 65 66 25 0d 07 | = rig% - lef%..|
00001920 d0 18 20 20 68 65 69 25 20 3d 20 62 6f 74 25 20 |.. hei% = bot% |
00001930 2d 20 74 6f 70 25 0d 07 da 04 0d 07 e4 13 20 20 |- top%........ |
00001940 e3 20 49 25 20 3d 20 31 20 b8 20 62 25 0d 07 ee |. I% = 1 . b%...|
00001950 25 20 20 20 20 70 6f 73 25 20 3d 20 74 61 62 6c |% pos% = tabl|
00001960 65 25 20 2b 20 28 28 49 25 2d 31 29 20 2a 20 32 |e% + ((I%-1) * 2|
00001970 34 29 0d 07 f8 14 20 20 20 20 f3 20 78 25 2c 78 |4).... . x%,x|
00001980 73 25 2c 79 73 25 0d 08 02 14 20 20 20 20 70 6f |s%,ys%.... po|
00001990 73 25 21 30 20 20 3d 20 78 25 0d 08 0c 2f 20 20 |s%!0 = x%.../ |
000019a0 20 20 70 6f 73 25 21 34 20 20 3d 20 28 20 74 6f | pos%!4 = ( to|
000019b0 70 25 20 2b 20 28 62 6f 74 25 20 2d 20 32 35 36 |p% + (bot% - 256|
000019c0 29 20 29 20 3c 3c 20 31 36 0d 08 16 15 20 20 20 |) ) << 16.... |
000019d0 20 70 6f 73 25 21 38 20 20 3d 20 78 73 25 0d 08 | pos%!8 = xs%..|
000019e0 20 21 20 20 20 20 70 6f 73 25 21 31 32 20 3d 20 | ! pos%!12 = |
000019f0 28 79 73 25 20 2f 20 38 29 20 3c 3c 20 31 36 0d |(ys% / 8) << 16.|
00001a00 08 2a 21 20 20 20 20 70 6f 73 25 21 31 36 20 3d |.*! pos%!16 =|
00001a10 20 28 20 28 49 25 20 2d 20 31 29 20 83 20 33 29 | ( (I% - 1) . 3)|
00001a20 0d 08 34 1c 20 20 20 20 70 6f 73 25 21 32 30 20 |..4. pos%!20 |
00001a30 3d 20 2d 79 73 25 20 3c 3c 20 31 36 0d 08 3e 07 |= -ys% << 16..>.|
00001a40 20 20 ed 0d 08 48 04 0d 08 52 05 e1 0d ff | ...H...R....|
00001a4e 
.