Home » Archimedes archive » Acorn User » AU 1996-05.adf » Regulars » StarInfo/Stoner/SpringFall
StarInfo/Stoner/SpringFall
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 1996-05.adf » Regulars |
| Filename: | StarInfo/Stoner/SpringFall |
| Read OK: | ✔ |
| File size: | 191E bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM Machine code program of water Basic droplet
20REM Nigel Stoner 1995
30
40MODE13
50OFF
60
70drops =4096
80
90DIM code 1024, water% drops*5*4
100
110PROCcompile
120
130CLS
140COLOUR 30 TINT 64
150PRINT"Imagine a Fresh"
160COLOUR 8 TINT 192
170PRINT"Spring Morning."
180COLOUR 8 TINT 128
190PRINT"With the First"
200COLOUR 8 TINT 64
210PRINT"Rainfall Coming"
220COLOUR 8 TINT 0
230PRINT"Down the Hills."
240COLOUR 30 TINT 128
250PRINTTAB(24,0)"Nigel Stoner"
260COLOUR 8 TINT 128
270PRINTTAB(24,1)"� 30.3.1995"
280COLOUR 28:PRINTTAB(0,26)
290t%=TIME
300REPEAT:UNTIL TIME >t%+350
310
320CALL code
330END
340
350DEFPROCcompile
360
370REM Register list
380
390color = 0
400dropx = 1
410dropy = 2
420dx = 3
430dy = 4
440plot = 5
450countr= 7
460abase = 8
470coltab= 9
480rnds = 10
490rndx = 11
500stp = 13
510link = 14
520vdu = 256
530
540FOR pass = 0 TO 2 STEP 2
550P% = code
560[
570OPT pass
580.init
590 STMFD (stp)!,{link} ; store return addr
600 MOV countr,#drops ; init 1st counter
610 LDR abase,water ; Show Array base
620 MOV dropy,#0 ; initial dropy =0
630 MOV dx,#0 ; initial dx=0
640 MOV dy,#0 ; initial dy=0
650 LDR plot,base% ; initial plot,
660 ADD plot,plot,#320 ; plus 1 line
670.set_drop
680 MOV dropx,#148 ; generate new drop x
690 BL rnd ; jump to rnd
700 AND R0,R0,#15 ; clear all but 4 bits (4*4=16)
710 ADD dropx,dropx,R0 ; add rnd to fall start
720 STMIA R8!,{R1-R5} ; store initial regs
730 SUB countr,countr,#1 ; inc counter
740 CMP countr,#0 ; is countr = drops ?
750 BNE set_drop ; no, do next drop
760.start
770 LDR abase,water ; Reset Array Base
780 MOV countr,#0 ; Init counter
790.loop
800 LDMFD R8!,{R1-R5} ; Load regs R1-R5
810 MOV color,#0
820 STRB color,[plot]
830 ADD dropx,dropx,dx ; x=x+dx
840 ADD dropy,dropy,dy,ASR #4 ; y=y+dy/16
850 ADD dy,dy,#2 ; dy=dy+1
860 CMP dy,#256 ; is dy > 256 ?
870 MOVEQ dy,#256 ; yes, dy = 256
880 CMP dropy,#256 ; is drop at bottom ?
890 BMI past_reset ; no jump past reset rountine
900 MOV dropy,#1 ; set drop to screen top
910 MOV dx,#0 ; streighten out dx
920.new_dropy
930 BL rnd ; generate new y drop
940 AND R0,R0,#7 ; clear all but last 3 bits
950 ADD dropy,dropy,R0 ; put R0 into drop y
960 MOV dy,#0 ; reset dy
970 MOV dropx,#148 ; generate new drop x
980 BL rnd ; jump to rnd
990 AND R0,R0,#15 ; clear all but 8 bits (8*8=64)
1000 ADD dropx,dropx,R0 ; add rnd to fall start
1010.past_reset
1020 CMP dropy,#60 ; 1st plato
1030 BGE past_plato1
1040 CMP dropy,#50
1050 BLE past_plato1
1060 CMP dropx,#149 ; 1st plato left
1070 BLE past_plato1
1080 CMP dropx,#159 ; 1st plato right
1090 BGE past_plato1
1100 B bounce
1110.past_plato1
1120 CMP dropy,#132 ; 2nd plato
1130 BGE past_plato2
1140 CMP dropy,#122
1150 BLE past_plato2
1160 CMP dropx,#150 ; 2nd plato left
1170 BLE past_plato2
1180 CMP dropx,#192 ; 2nd plato right
1190 BGE past_plato2
1200 B bounce
1210.past_plato2
1220 CMP dropy,#188 ; 3rd plato
1230 BGE past_plato3
1240 CMP dropy,#178
1250 BLE past_plato3
1260 CMP dropx,#50 ; 3rd plato left
1270 BLE past_plato3
1280 CMP dropx,#154 ; 3rd plato right
1290 BGE past_plato3
1300 B bounce
1310.past_plato3
1320 CMP dropy,#255 ; 4th plato
1330 BGE past_plato4
1340 CMP dropy,#232
1350 BLE past_plato4
1360 CMP dropx,#60 ; 4th plato left
1370 BLE past_plato4
1380 CMP dropx,#260 ; 4th plato right
1390 BGE past_plato4
1400 B bounce
1410.bounce ; This bit does a bounce
1420 BL rnd
1430 AND R0,R0,#63 ; rnd(63)
1440 CMP R0,#20
1450 MOVPL dx,#1 ; rnd > 20 dx= +ive
1460 MVNLE dx,#0 ; rnd < 20 dx= -ive
1470 CMP R0,#40 ; rnd > 40 dx = 0
1480 MOVPL dx,#0
1490 BL rnd ; new dy value
1500 AND R0,R0,#63 ; 0-63
1510 MOV dy,R0 ; dy=R0
1520 BL rnd
1530 AND R0,R0,#255 ; rnd(255)
1540 CMP R0,#10
1550 MVNLE dy,dy,ASR #4 ; rnd<16 dy=-dy/4
1560.past_plato4
1570 LDR plot,base% ; move screen into plot
1580 ADD plot,plot,dropy,ASL #6 ; 1st bit of y*320
1590 ADD plot,plot,dropy,ASL #8 ; 2nd bit of y*320
1600 MOV color,dy,ASR #3 ; put dy/16 into colour
1610 ADR coltab,colours ; set place in table
1620 LDRB color,[coltab,color] ; get real color
1630 STRB R0,[plot,dropx]!
1640 STMFD R8!,{R1-R5} ; save regs R1-R5
1650 ADD abase,abase,#20
1660 ADD countr,countr,#1 ; inc counter
1670 CMP countr,#drops ; is it = drops ?
1680 BNE loop ; no do loop again
1690 MOV R0,#19
1700 SWI "OS_Byte"
1710 SWI "OS_ReadEscapeState" ; pressed ESC ?
1720 BCC start ; no do whole lot again
1730.end
1740 LDMFD (stp)!,{pc} ; yes return to basic
1750
1760.rnd
1770LDR rnds,seed
1780LDR rndx,xor
1790MOV R0,#0
1800]
1810FOR bit = 1 TO 8
1820[OPT pass
1830MOVS rnds,rnds,LSL #1
1840EORCS rnds,rnds,rndx
1850ADC R0,R0,R0
1860]
1870NEXT bit
1880[OPT pass
1890STR rnds,seed
1900MOV PC,link
1910
1920.seed
1930EQUD TIME
1940.xor
1950EQUD &1D872B41
1960
1970.minus_colours
1980EQUD &A9A8CCAB
1990EQUD &CCAB8BA9
2000EQUD &EDCFCECD
2010EQUD &FFFBF9EF
2020.colours
2030EQUD &EFF9FBFF
2040EQUD &CDCECFED
2050EQUD &A98BABCC
2060EQUD &ABCCA8A9
2070EQUD &ABA8CEA9
2080.water
2090EQUD water%
2100
2110.base%
2120EQUD 148
2130EQUD -1
2140]
2150
2160NEXT pass
2170SYS "OS_ReadVduVariables",base%,base%
2180ENDPROC
1� Machine code program of water Basic droplet
� Nigel Stoner 1995
(�13
2�
<
Fdrops =4096
P
Z!� code 1024, water% drops*5*4
d
n �compile
x
��
�� 30 Ȝ 64
��"Imagine a Fresh"
�� 8 Ȝ 192
��"Spring Morning."
�� 8 Ȝ 128
��"With the First"
�
� 8 Ȝ 64
��"Rainfall Coming"
� � 8 Ȝ 0
��"Down the Hills."
�� 30 Ȝ 128
��24,0)"Nigel Stoner"
� 8 Ȝ 128
�24,1)"� 30.3.1995"
� 28:�0,26)
"t%=�
,�:� � >t%+350
6
@
� code
J�
T
^
��compile
h
r� Register list
|
�
color = 0
�
dropx = 1
�
dropy = 2
�
dx = 3
�
dy = 4
�
plot = 5
�
countr= 7
�
abase = 8
�
coltab= 9
�rnds = 10
�rndx = 11
�stp = 13
�link = 14
vdu = 256
� pass = 0 � 2 � 2
&
P% = code
0[
: OPT pass
D .init
N< STMFD (stp)!,{link} ; store return addr
X; MOV countr,#drops ; init 1st counter
b: LDR abase,water ; Show Array base
l; MOV dropy,#0 ; initial dropy =0
v7 MOV dx,#0 ; initial dx=0
�7 MOV dy,#0 ; initial dy=0
�8 LDR plot,base% ; initial plot,
�6 ADD plot,plot,#320 ; plus 1 line
�
.set_drop
�> MOV dropx,#148 ; generate new drop x
�6 BL rnd ; jump to rnd
�F � R0,R0,#15 ; clear all but 4 bits (4*4=16)
�@ ADD dropx,dropx,R0 ; add rnd to fall start
�= STMIA R8!,{R1-R5} ; store initial regs
�6 SUB countr,countr,#1 ; inc counter
�> CMP countr,#0 ; is countr = drops ?
�; BNE set_drop ; no, do next drop
�
.start
; LDR abase,water ; Reset Array Base
7 MOV countr,#0 ; Init counter
.loop
: LDMFD R8!,{R1-R5} ; Load regs R1-R5
* MOV color,#0
4 STRB color,[plot]
>1 ADD dropx,dropx,dx ; x=x+dx
H4 ADD dropy,dropy,dy,ASR #4 ; y=y+dy/16
R2 ADD dy,dy,#2 ; dy=dy+1
\8 CMP dy,#256 ; is dy > 256 ?
f5 �Q dy,#256 ; yes, dy = 256
p> CMP dropy,#256 ; is drop at bottom ?
zF BMI past_reset ; no jump past reset rountine
�A MOV dropy,#1 ; set drop to screen top
�< MOV dx,#0 ; streighten out dx
�.new_dropy
�> BL rnd ; generate new y drop
�B � R0,R0,#7 ; clear all but last 3 bits
�= ADD dropy,dropy,R0 ; put R0 into drop y
�3 MOV dy,#0 ; reset dy
�> MOV dropx,#148 ; generate new drop x
�6 BL rnd ; jump to rnd
�F � R0,R0,#15 ; clear all but 8 bits (8*8=64)
�@ ADD dropx,dropx,R0 ; add rnd to fall start
�.past_reset
�4 CMP dropy,#60 ; 1st plato
BGE past_plato1
CMP dropy,#50
BLE past_plato1
$9 CMP dropx,#149 ; 1st plato left
. BLE past_plato1
8: CMP dropx,#159 ; 1st plato right
B BGE past_plato1
L B bounce
V.past_plato1
`4 CMP dropy,#132 ; 2nd plato
j BGE past_plato2
t CMP dropy,#122
~ BLE past_plato2
�9 CMP dropx,#150 ; 2nd plato left
� BLE past_plato2
�: CMP dropx,#192 ; 2nd plato right
� BGE past_plato2
� B bounce
�.past_plato2
�4 CMP dropy,#188 ; 3rd plato
� BGE past_plato3
� CMP dropy,#178
� BLE past_plato3
�9 CMP dropx,#50 ; 3rd plato left
� BLE past_plato3
: CMP dropx,#154 ; 3rd plato right
BGE past_plato3
B bounce
.past_plato3
(4 CMP dropy,#255 ; 4th plato
2 BGE past_plato4
< CMP dropy,#232
F BLE past_plato4
P9 CMP dropx,#60 ; 4th plato left
Z BLE past_plato4
d: CMP dropx,#260 ; 4th plato right
n BGE past_plato4
x B bounce
�A.bounce ; This bit does a bounce
� BL rnd
�0 � R0,R0,#63 ; rnd(63)
� CMP R0,#20
�< MOVPL dx,#1 ; rnd > 20 dx= +ive
�< MVNLE dx,#0 ; rnd < 20 dx= -ive
�: CMP R0,#40 ; rnd > 40 dx = 0
� MOVPL dx,#0
�7 BL rnd ; new dy value
�- � R0,R0,#63 ; 0-63
�0 MOV dy,R0 ; dy=R0
� BL rnd
�1 � R0,R0,#255 ; rnd(255)
CMP R0,#10
: MVNLE dy,dy,ASR #4 ; rnd<16 dy=-dy/4
.past_plato4
"@ LDR plot,base% ; move screen into plot
,; ADD plot,plot,dropy,ASL #6 ; 1st bit of y*320
6; ADD plot,plot,dropy,ASL #8 ; 2nd bit of y*320
@@ MOV color,dy,ASR #3 ; put dy/16 into colour
J= ADR coltab,colours ; set place in table
T9 LDRB color,[coltab,color] ; get real color
^ STRB R0,[plot,dropx]!
h: STMFD R8!,{R1-R5} ; save regs R1-R5
r ADD abase,abase,#20
|6 ADD countr,countr,#1 ; inc counter
�: CMP countr,#drops ; is it = drops ?
�; BNE loop ; no do loop again
� MOV R0,#19
� SWI "OS_Byte"
�8 SWI "OS_ReadEscapeState" ; pressed ESC ?
�@ BCC start ; no do whole lot again
�.end
�> LDMFD (stp)!,{pc} ; yes return to basic
�
�.rnd
�LDR rnds,seed
�LDR rndx,xor
�
MOV R0,#0
]
� bit = 1 � 8
[OPT pass
&MOVS rnds,rnds,LSL #1
0�CS rnds,rnds,rndx
:ADC R0,R0,R0
D]
N � bit
X
[OPT pass
bSTR rnds,seed
lMOV PC,link
v
� .seed
�
EQUD �
�.xor
�EQUD &1D872B41
�
�.minus_colours
�EQUD &A9A8CCAB
�EQUD &CCAB8BA9
�EQUD &EDCFCECD
�EQUD &FFFBF9EF
� .colours
�EQUD &EFF9FBFF
�EQUD &CDCECFED
EQUD &A98BABCC
EQUD &ABCCA8A9
EQUD &ABA8CEA9
.water
*EQUD water%
4
>
.base%
H EQUD 148
R EQUD -1
\]
f
p
� pass
z(ș "OS_ReadVduVariables",base%,base%
��
� 00000000 0d 00 0a 31 f4 20 4d 61 63 68 69 6e 65 20 63 6f |...1. Machine co|
00000010 64 65 20 70 72 6f 67 72 61 6d 20 6f 66 20 77 61 |de program of wa|
00000020 74 65 72 20 42 61 73 69 63 20 64 72 6f 70 6c 65 |ter Basic drople|
00000030 74 0d 00 14 17 f4 20 4e 69 67 65 6c 20 53 74 6f |t..... Nigel Sto|
00000040 6e 65 72 20 31 39 39 35 0d 00 1e 04 0d 00 28 07 |ner 1995......(.|
00000050 eb 31 33 0d 00 32 05 87 0d 00 3c 04 0d 00 46 0f |.13..2....<...F.|
00000060 64 72 6f 70 73 20 3d 34 30 39 36 0d 00 50 04 0d |drops =4096..P..|
00000070 00 5a 21 de 20 63 6f 64 65 20 31 30 32 34 2c 20 |.Z!. code 1024, |
00000080 77 61 74 65 72 25 20 64 72 6f 70 73 2a 35 2a 34 |water% drops*5*4|
00000090 0d 00 64 04 0d 00 6e 0c f2 63 6f 6d 70 69 6c 65 |..d...n..compile|
000000a0 0d 00 78 04 0d 00 82 05 db 0d 00 8c 0e fb 20 33 |..x........... 3|
000000b0 30 20 c8 9c 20 36 34 0d 00 96 16 f1 22 49 6d 61 |0 .. 64....."Ima|
000000c0 67 69 6e 65 20 61 20 46 72 65 73 68 22 0d 00 a0 |gine a Fresh"...|
000000d0 0e fb 20 38 20 c8 9c 20 31 39 32 0d 00 aa 16 f1 |.. 8 .. 192.....|
000000e0 22 53 70 72 69 6e 67 20 4d 6f 72 6e 69 6e 67 2e |"Spring Morning.|
000000f0 22 0d 00 b4 0e fb 20 38 20 c8 9c 20 31 32 38 0d |"..... 8 .. 128.|
00000100 00 be 16 f1 22 57 69 74 68 20 20 74 68 65 20 46 |...."With the F|
00000110 69 72 73 74 22 0d 00 c8 0d fb 20 38 20 c8 9c 20 |irst"..... 8 .. |
00000120 36 34 0d 00 d2 16 f1 22 52 61 69 6e 66 61 6c 6c |64....."Rainfall|
00000130 20 43 6f 6d 69 6e 67 22 0d 00 dc 0c fb 20 38 20 | Coming"..... 8 |
00000140 c8 9c 20 30 0d 00 e6 16 f1 22 44 6f 77 6e 20 74 |.. 0....."Down t|
00000150 68 65 20 48 69 6c 6c 73 2e 22 0d 00 f0 0f fb 20 |he Hills."..... |
00000160 33 30 20 c8 9c 20 31 32 38 0d 00 fa 19 f1 8a 32 |30 .. 128......2|
00000170 34 2c 30 29 22 4e 69 67 65 6c 20 53 74 6f 6e 65 |4,0)"Nigel Stone|
00000180 72 22 0d 01 04 0e fb 20 38 20 c8 9c 20 31 32 38 |r"..... 8 .. 128|
00000190 0d 01 0e 18 f1 8a 32 34 2c 31 29 22 a9 20 33 30 |......24,1)". 30|
000001a0 2e 33 2e 31 39 39 35 22 0d 01 18 10 fb 20 32 38 |.3.1995"..... 28|
000001b0 3a f1 8a 30 2c 32 36 29 0d 01 22 08 74 25 3d 91 |:..0,26)..".t%=.|
000001c0 0d 01 2c 11 f5 3a fd 20 91 20 3e 74 25 2b 33 35 |..,..:. . >t%+35|
000001d0 30 0d 01 36 04 0d 01 40 0a d6 20 63 6f 64 65 0d |0..6...@.. code.|
000001e0 01 4a 05 e0 0d 01 54 04 0d 01 5e 0d dd f2 63 6f |.J....T...^...co|
000001f0 6d 70 69 6c 65 0d 01 68 04 0d 01 72 13 f4 20 52 |mpile..h...r.. R|
00000200 65 67 69 73 74 65 72 20 6c 69 73 74 0d 01 7c 04 |egister list..|.|
00000210 0d 01 86 0d 63 6f 6c 6f 72 20 3d 20 30 0d 01 90 |....color = 0...|
00000220 0d 64 72 6f 70 78 20 3d 20 31 0d 01 9a 0d 64 72 |.dropx = 1....dr|
00000230 6f 70 79 20 3d 20 32 0d 01 a4 0d 64 78 20 20 20 |opy = 2....dx |
00000240 20 3d 20 33 0d 01 ae 0d 64 79 20 20 20 20 3d 20 | = 3....dy = |
00000250 34 0d 01 b8 0d 70 6c 6f 74 20 20 3d 20 35 0d 01 |4....plot = 5..|
00000260 c2 0d 63 6f 75 6e 74 72 3d 20 37 0d 01 cc 0d 61 |..countr= 7....a|
00000270 62 61 73 65 20 3d 20 38 0d 01 d6 0d 63 6f 6c 74 |base = 8....colt|
00000280 61 62 3d 20 39 0d 01 e0 0e 72 6e 64 73 20 20 3d |ab= 9....rnds =|
00000290 20 31 30 0d 01 ea 0e 72 6e 64 78 20 20 3d 20 31 | 10....rndx = 1|
000002a0 31 0d 01 f4 0e 73 74 70 20 20 20 3d 20 31 33 0d |1....stp = 13.|
000002b0 01 fe 0e 6c 69 6e 6b 20 20 3d 20 31 34 0d 02 08 |...link = 14...|
000002c0 0f 76 64 75 20 20 20 3d 20 32 35 36 0d 02 12 04 |.vdu = 256....|
000002d0 0d 02 1c 16 e3 20 70 61 73 73 20 3d 20 30 20 b8 |..... pass = 0 .|
000002e0 20 32 20 88 20 32 0d 02 26 0d 50 25 20 3d 20 63 | 2 . 2..&.P% = c|
000002f0 6f 64 65 0d 02 30 05 5b 0d 02 3a 0c 4f 50 54 20 |ode..0.[..:.OPT |
00000300 70 61 73 73 0d 02 44 09 2e 69 6e 69 74 0d 02 4e |pass..D..init..N|
00000310 3c 20 20 53 54 4d 46 44 20 20 20 28 73 74 70 29 |< STMFD (stp)|
00000320 21 2c 7b 6c 69 6e 6b 7d 20 20 20 20 20 20 20 20 |!,{link} |
00000330 20 20 20 20 20 20 3b 20 73 74 6f 72 65 20 72 65 | ; store re|
00000340 74 75 72 6e 20 61 64 64 72 0d 02 58 3b 20 20 4d |turn addr..X; M|
00000350 4f 56 20 20 20 20 20 63 6f 75 6e 74 72 2c 23 64 |OV countr,#d|
00000360 72 6f 70 73 20 20 20 20 20 20 20 20 20 20 20 20 |rops |
00000370 20 20 3b 20 69 6e 69 74 20 31 73 74 20 63 6f 75 | ; init 1st cou|
00000380 6e 74 65 72 0d 02 62 3a 20 20 4c 44 52 20 20 20 |nter..b: LDR |
00000390 20 20 61 62 61 73 65 2c 77 61 74 65 72 20 20 20 | abase,water |
000003a0 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 53 | ; S|
000003b0 68 6f 77 20 41 72 72 61 79 20 62 61 73 65 0d 02 |how Array base..|
000003c0 6c 3b 20 20 4d 4f 56 20 20 20 20 20 64 72 6f 70 |l; MOV drop|
000003d0 79 2c 23 30 20 20 20 20 20 20 20 20 20 20 20 20 |y,#0 |
000003e0 20 20 20 20 20 20 20 3b 20 69 6e 69 74 69 61 6c | ; initial|
000003f0 20 64 72 6f 70 79 20 3d 30 0d 02 76 37 20 20 4d | dropy =0..v7 M|
00000400 4f 56 20 20 20 20 20 64 78 2c 23 30 20 20 20 20 |OV dx,#0 |
00000410 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000420 20 20 3b 20 69 6e 69 74 69 61 6c 20 64 78 3d 30 | ; initial dx=0|
00000430 0d 02 80 37 20 20 4d 4f 56 20 20 20 20 20 64 79 |...7 MOV dy|
00000440 2c 23 30 20 20 20 20 20 20 20 20 20 20 20 20 20 |,#0 |
00000450 20 20 20 20 20 20 20 20 20 3b 20 69 6e 69 74 69 | ; initi|
00000460 61 6c 20 64 79 3d 30 0d 02 8a 38 20 20 4c 44 52 |al dy=0...8 LDR|
00000470 20 20 20 20 20 70 6c 6f 74 2c 62 61 73 65 25 20 | plot,base% |
00000480 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000490 3b 20 69 6e 69 74 69 61 6c 20 70 6c 6f 74 2c 0d |; initial plot,.|
000004a0 02 94 36 20 20 41 44 44 20 20 20 20 20 70 6c 6f |..6 ADD plo|
000004b0 74 2c 70 6c 6f 74 2c 23 33 32 30 20 20 20 20 20 |t,plot,#320 |
000004c0 20 20 20 20 20 20 20 20 3b 20 70 6c 75 73 20 31 | ; plus 1|
000004d0 20 6c 69 6e 65 0d 02 9e 0d 2e 73 65 74 5f 64 72 | line.....set_dr|
000004e0 6f 70 0d 02 a8 3e 20 20 4d 4f 56 20 20 20 20 20 |op...> MOV |
000004f0 64 72 6f 70 78 2c 23 31 34 38 20 20 20 20 20 20 |dropx,#148 |
00000500 20 20 20 20 20 20 20 20 20 20 20 3b 20 67 65 6e | ; gen|
00000510 65 72 61 74 65 20 6e 65 77 20 64 72 6f 70 20 78 |erate new drop x|
00000520 0d 02 b2 36 20 20 42 4c 20 20 20 20 20 20 72 6e |...6 BL rn|
00000530 64 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |d |
00000540 20 20 20 20 20 20 20 20 20 3b 20 6a 75 6d 70 20 | ; jump |
00000550 74 6f 20 72 6e 64 0d 02 bc 46 20 20 80 20 20 20 |to rnd...F . |
00000560 20 20 52 30 2c 52 30 2c 23 31 35 20 20 20 20 20 | R0,R0,#15 |
00000570 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 63 | ; c|
00000580 6c 65 61 72 20 61 6c 6c 20 62 75 74 20 34 20 62 |lear all but 4 b|
00000590 69 74 73 20 28 34 2a 34 3d 31 36 29 0d 02 c6 40 |its (4*4=16)...@|
000005a0 20 20 41 44 44 20 20 20 20 20 64 72 6f 70 78 2c | ADD dropx,|
000005b0 64 72 6f 70 78 2c 52 30 20 20 20 20 20 20 20 20 |dropx,R0 |
000005c0 20 20 20 20 20 3b 20 61 64 64 20 72 6e 64 20 74 | ; add rnd t|
000005d0 6f 20 66 61 6c 6c 20 73 74 61 72 74 0d 02 d0 3d |o fall start...=|
000005e0 20 20 53 54 4d 49 41 20 20 20 52 38 21 2c 7b 52 | STMIA R8!,{R|
000005f0 31 2d 52 35 7d 20 20 20 20 20 20 20 20 20 20 20 |1-R5} |
00000600 20 20 20 20 20 3b 20 73 74 6f 72 65 20 69 6e 69 | ; store ini|
00000610 74 69 61 6c 20 72 65 67 73 0d 02 da 36 20 20 53 |tial regs...6 S|
00000620 55 42 20 20 20 20 20 63 6f 75 6e 74 72 2c 63 6f |UB countr,co|
00000630 75 6e 74 72 2c 23 31 20 20 20 20 20 20 20 20 20 |untr,#1 |
00000640 20 20 3b 20 69 6e 63 20 63 6f 75 6e 74 65 72 0d | ; inc counter.|
00000650 02 e4 3e 20 20 43 4d 50 20 20 20 20 20 63 6f 75 |..> CMP cou|
00000660 6e 74 72 2c 23 30 20 20 20 20 20 20 20 20 20 20 |ntr,#0 |
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00000680 6e 74 72 20 3d 20 64 72 6f 70 73 20 3f 0d 02 ee |ntr = drops ?...|
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000006a0 72 6f 70 20 20 20 20 20 20 20 20 20 20 20 20 20 |rop |
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000006e0 61 62 61 73 65 2c 77 61 74 65 72 20 20 20 20 20 |abase,water |
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00000710 37 20 20 4d 4f 56 20 20 20 20 20 63 6f 75 6e 74 |7 MOV count|
00000720 72 2c 23 30 20 20 20 20 20 20 20 20 20 20 20 20 |r,#0 |
00000730 20 20 20 20 20 20 3b 20 49 6e 69 74 20 63 6f 75 | ; Init cou|
00000740 6e 74 65 72 0d 03 16 09 2e 6c 6f 6f 70 0d 03 20 |nter.....loop.. |
00000750 3a 20 20 4c 44 4d 46 44 20 20 20 52 38 21 2c 7b |: LDMFD R8!,{|
00000760 52 31 2d 52 35 7d 20 20 20 20 20 20 20 20 20 20 |R1-R5} |
00000770 20 20 20 20 20 20 3b 20 4c 6f 61 64 20 72 65 67 | ; Load reg|
00000780 73 20 52 31 2d 52 35 0d 03 2a 16 20 20 4d 4f 56 |s R1-R5..*. MOV|
00000790 20 20 20 20 20 63 6f 6c 6f 72 2c 23 30 0d 03 34 | color,#0..4|
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000007d0 2c 64 78 20 20 20 20 20 20 20 20 20 20 20 20 20 |,dx |
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00000800 79 2c 64 79 2c 41 53 52 20 23 34 20 20 20 20 20 |y,dy,ASR #4 |
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00000820 20 20 41 44 44 20 20 20 20 20 64 79 2c 64 79 2c | ADD dy,dy,|
00000830 23 32 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |#2 |
00000840 20 20 20 20 20 3b 20 64 79 3d 64 79 2b 31 0d 03 | ; dy=dy+1..|
00000850 5c 38 20 20 43 4d 50 20 20 20 20 20 64 79 2c 23 |\8 CMP dy,#|
00000860 32 35 36 20 20 20 20 20 20 20 20 20 20 20 20 20 |256 |
00000870 20 20 20 20 20 20 20 3b 20 69 73 20 64 79 20 3e | ; is dy >|
00000880 20 32 35 36 20 3f 0d 03 66 35 20 20 ec 51 20 20 | 256 ?..f5 .Q |
00000890 20 64 79 2c 23 32 35 36 20 20 20 20 20 20 20 20 | dy,#256 |
000008a0 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 79 65 | ; ye|
000008b0 73 2c 20 64 79 20 3d 20 32 35 36 0d 03 70 3e 20 |s, dy = 256..p> |
000008c0 20 43 4d 50 20 20 20 20 20 64 72 6f 70 79 2c 23 | CMP dropy,#|
000008d0 32 35 36 20 20 20 20 20 20 20 20 20 20 20 20 20 |256 |
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00000910 74 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |t |
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00000aa0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
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00000ad0 34 38 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |48 |
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00000b70 3d 36 34 29 0d 03 e8 40 20 20 41 44 44 20 20 20 |=64)...@ ADD |
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00000bc0 73 65 74 0d 03 fc 34 20 20 43 4d 50 20 20 20 20 |set...4 CMP |
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00000c50 6f 70 78 2c 23 31 34 39 20 20 20 20 20 20 20 20 |opx,#149 |
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00000cd0 20 20 42 47 45 20 20 20 20 20 70 61 73 74 5f 70 | BGE past_p|
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00000d00 73 74 5f 70 6c 61 74 6f 31 0d 04 60 34 20 20 43 |st_plato1..`4 C|
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00000d20 32 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |2 |
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00000d40 19 20 20 42 47 45 20 20 20 20 20 70 61 73 74 5f |. BGE past_|
00000d50 70 6c 61 74 6f 32 0d 04 74 18 20 20 43 4d 50 20 |plato2..t. CMP |
00000d60 20 20 20 20 64 72 6f 70 79 2c 23 31 32 32 0d 04 | dropy,#122..|
00000d70 7e 19 20 20 42 4c 45 20 20 20 20 20 70 61 73 74 |~. BLE past|
00000d80 5f 70 6c 61 74 6f 32 0d 04 88 39 20 20 43 4d 50 |_plato2...9 CMP|
00000d90 20 20 20 20 20 64 72 6f 70 78 2c 23 31 35 30 20 | dropx,#150 |
00000da0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
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00000dc0 0d 04 92 19 20 20 42 4c 45 20 20 20 20 20 70 61 |.... BLE pa|
00000dd0 73 74 5f 70 6c 61 74 6f 32 0d 04 9c 3a 20 20 43 |st_plato2...: C|
00000de0 4d 50 20 20 20 20 20 64 72 6f 70 78 2c 23 31 39 |MP dropx,#19|
00000df0 32 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |2 |
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00000e10 67 68 74 0d 04 a6 19 20 20 42 47 45 20 20 20 20 |ght.... BGE |
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00000e30 20 20 42 20 20 20 20 20 20 20 62 6f 75 6e 63 65 | B bounce|
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00000e60 6f 70 79 2c 23 31 38 38 20 20 20 20 20 20 20 20 |opy,#188 |
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00000eb0 2c 23 31 37 38 0d 04 e2 19 20 20 42 4c 45 20 20 |,#178.... BLE |
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00000f30 6f 70 78 2c 23 31 35 34 20 20 20 20 20 20 20 20 |opx,#154 |
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00000f60 42 47 45 20 20 20 20 20 70 61 73 74 5f 70 6c 61 |BGE past_pla|
00000f70 74 6f 33 0d 05 14 14 20 20 42 20 20 20 20 20 20 |to3.... B |
00000f80 20 62 6f 75 6e 63 65 0d 05 1e 10 2e 70 61 73 74 | bounce.....past|
00000f90 5f 70 6c 61 74 6f 33 0d 05 28 34 20 20 43 4d 50 |_plato3..(4 CMP|
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00000fb0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
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000010e0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
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00001100 74 20 64 6f 65 73 20 61 20 62 6f 75 6e 63 65 0d |t does a bounce.|
00001110 05 8c 11 20 20 42 4c 20 20 20 20 20 20 72 6e 64 |... BL rnd|
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000012e0 23 32 35 35 20 20 20 20 20 20 20 20 20 20 20 20 |#255 |
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00001330 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 72 6e | ; rn|
00001340 64 3c 31 36 20 64 79 3d 2d 64 79 2f 34 0d 06 18 |d<16 dy=-dy/4...|
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00001440 74 20 64 79 2f 31 36 20 69 6e 74 6f 20 63 6f 6c |t dy/16 into col|
00001450 6f 75 72 0d 06 4a 3d 20 20 41 44 52 20 20 20 20 |our..J= ADR |
00001460 20 63 6f 6c 74 61 62 2c 63 6f 6c 6f 75 72 73 20 | coltab,colours |
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000014c0 65 61 6c 20 63 6f 6c 6f 72 0d 06 5e 1e 20 20 53 |eal color..^. S|
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000014e0 64 72 6f 70 78 5d 21 0d 06 68 3a 20 20 53 54 4d |dropx]!..h: STM|
000014f0 46 44 20 20 20 52 38 21 2c 7b 52 31 2d 52 35 7d |FD R8!,{R1-R5}|
00001500 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
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00001520 35 0d 06 72 1d 20 20 41 44 44 20 20 20 20 20 61 |5..r. ADD a|
00001530 62 61 73 65 2c 61 62 61 73 65 2c 23 32 30 0d 06 |base,abase,#20..|
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00001550 74 72 2c 63 6f 75 6e 74 72 2c 23 31 20 20 20 20 |tr,countr,#1 |
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00001570 6e 74 65 72 0d 06 86 3a 20 20 43 4d 50 20 20 20 |nter...: CMP |
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000015c0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
000015d0 20 20 20 20 20 20 20 3b 20 6e 6f 20 64 6f 20 6c | ; no do l|
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000015f0 4f 56 20 20 20 20 20 52 30 2c 23 31 39 0d 06 a4 |OV R0,#19...|
00001600 17 20 20 53 57 49 20 20 20 20 20 22 4f 53 5f 42 |. SWI "OS_B|
00001610 79 74 65 22 0d 06 ae 38 20 20 53 57 49 20 20 20 |yte"...8 SWI |
00001620 20 20 22 4f 53 5f 52 65 61 64 45 73 63 61 70 65 | "OS_ReadEscape|
00001630 53 74 61 74 65 22 20 20 20 20 20 20 20 3b 20 70 |State" ; p|
00001640 72 65 73 73 65 64 20 45 53 43 20 3f 0d 06 b8 40 |ressed ESC ?...@|
00001650 20 20 42 43 43 20 20 20 20 20 73 74 61 72 74 20 | BCC start |
00001660 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00001670 20 20 20 20 20 3b 20 6e 6f 20 64 6f 20 77 68 6f | ; no do who|
00001680 6c 65 20 6c 6f 74 20 61 67 61 69 6e 0d 06 c2 08 |le lot again....|
00001690 2e 65 6e 64 0d 06 cc 3e 20 20 4c 44 4d 46 44 20 |.end...> LDMFD |
000016a0 20 20 28 73 74 70 29 21 2c 7b 70 63 7d 20 20 20 | (stp)!,{pc} |
000016b0 20 20 20 20 20 20 20 20 20 20 20 20 20 3b 20 79 | ; y|
000016c0 65 73 20 72 65 74 75 72 6e 20 74 6f 20 62 61 73 |es return to bas|
000016d0 69 63 0d 06 d6 04 0d 06 e0 08 2e 72 6e 64 0d 06 |ic.........rnd..|
000016e0 ea 11 4c 44 52 20 72 6e 64 73 2c 73 65 65 64 0d |..LDR rnds,seed.|
000016f0 06 f4 10 4c 44 52 20 72 6e 64 78 2c 78 6f 72 0d |...LDR rndx,xor.|
00001700 06 fe 0d 4d 4f 56 20 52 30 2c 23 30 0d 07 08 05 |...MOV R0,#0....|
00001710 5d 0d 07 12 11 e3 20 62 69 74 20 3d 20 31 20 b8 |]..... bit = 1 .|
00001720 20 38 0d 07 1c 0d 5b 4f 50 54 20 70 61 73 73 0d | 8....[OPT pass.|
00001730 07 26 19 4d 4f 56 53 20 72 6e 64 73 2c 72 6e 64 |.&.MOVS rnds,rnd|
00001740 73 2c 4c 53 4c 20 23 31 0d 07 30 16 82 43 53 20 |s,LSL #1..0..CS |
00001750 72 6e 64 73 2c 72 6e 64 73 2c 72 6e 64 78 0d 07 |rnds,rnds,rndx..|
00001760 3a 10 41 44 43 20 52 30 2c 52 30 2c 52 30 0d 07 |:.ADC R0,R0,R0..|
00001770 44 05 5d 0d 07 4e 09 ed 20 62 69 74 0d 07 58 0d |D.]..N.. bit..X.|
00001780 5b 4f 50 54 20 70 61 73 73 0d 07 62 11 53 54 52 |[OPT pass..b.STR|
00001790 20 72 6e 64 73 2c 73 65 65 64 0d 07 6c 0f 4d 4f | rnds,seed..l.MO|
000017a0 56 20 50 43 2c 6c 69 6e 6b 0d 07 76 04 0d 07 80 |V PC,link..v....|
000017b0 09 2e 73 65 65 64 0d 07 8a 0a 45 51 55 44 20 91 |..seed....EQUD .|
000017c0 0d 07 94 08 2e 78 6f 72 0d 07 9e 12 45 51 55 44 |.....xor....EQUD|
000017d0 20 26 31 44 38 37 32 42 34 31 0d 07 a8 04 0d 07 | &1D872B41......|
000017e0 b2 12 2e 6d 69 6e 75 73 5f 63 6f 6c 6f 75 72 73 |...minus_colours|
000017f0 0d 07 bc 12 45 51 55 44 20 26 41 39 41 38 43 43 |....EQUD &A9A8CC|
00001800 41 42 0d 07 c6 12 45 51 55 44 20 26 43 43 41 42 |AB....EQUD &CCAB|
00001810 38 42 41 39 0d 07 d0 12 45 51 55 44 20 26 45 44 |8BA9....EQUD &ED|
00001820 43 46 43 45 43 44 0d 07 da 12 45 51 55 44 20 26 |CFCECD....EQUD &|
00001830 46 46 46 42 46 39 45 46 0d 07 e4 0c 2e 63 6f 6c |FFFBF9EF.....col|
00001840 6f 75 72 73 0d 07 ee 12 45 51 55 44 20 26 45 46 |ours....EQUD &EF|
00001850 46 39 46 42 46 46 0d 07 f8 12 45 51 55 44 20 26 |F9FBFF....EQUD &|
00001860 43 44 43 45 43 46 45 44 0d 08 02 12 45 51 55 44 |CDCECFED....EQUD|
00001870 20 26 41 39 38 42 41 42 43 43 0d 08 0c 12 45 51 | &A98BABCC....EQ|
00001880 55 44 20 26 41 42 43 43 41 38 41 39 0d 08 16 12 |UD &ABCCA8A9....|
00001890 45 51 55 44 20 26 41 42 41 38 43 45 41 39 0d 08 |EQUD &ABA8CEA9..|
000018a0 20 0a 2e 77 61 74 65 72 0d 08 2a 0f 45 51 55 44 | ..water..*.EQUD|
000018b0 20 77 61 74 65 72 25 0d 08 34 04 0d 08 3e 0a 2e | water%..4...>..|
000018c0 62 61 73 65 25 0d 08 48 0c 45 51 55 44 20 31 34 |base%..H.EQUD 14|
000018d0 38 0d 08 52 0b 45 51 55 44 20 2d 31 0d 08 5c 05 |8..R.EQUD -1..\.|
000018e0 5d 0d 08 66 04 0d 08 70 0a ed 20 70 61 73 73 0d |]..f...p.. pass.|
000018f0 08 7a 28 c8 99 20 22 4f 53 5f 52 65 61 64 56 64 |.z(.. "OS_ReadVd|
00001900 75 56 61 72 69 61 62 6c 65 73 22 2c 62 61 73 65 |uVariables",base|
00001910 25 2c 62 61 73 65 25 0d 08 84 05 e1 0d ff |%,base%.......|
0000191e 
.