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GAMES1/GRIDDER

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 » Personal collection » Acorn ADFS disks » Electron » Digital_pictures_2.ADF
Filename: GAMES1/GRIDDER
Read OK:
File size: 115C bytes
Load address: FFFF0E00
Exec address: FFFF8023
File contents
   10REM THE GRID
   20MODE2
   30ENVELOPE3,129,2,4,6,28,14,7,0,0,0,-80,80,80
   40VDU23,1,0;0;0;0;
   50DIMX%(18),Y%(18)
   60PROCCHARACTERS
   70HI%=0
   80PROCTITLES
   90CLS:SC%=0:Q%=1:W%=2:G%=1:L%=1:FUEL%=0:LV%=0:SP%=8
  100RA%=1:AL%=4
  110IF AL%>18 AL%=18
  120IF RA%>5 RA%=5
  130R%=0:M%=0:C%=0:E%=0:H%=1:SX%=10:SY%=28:A%=225:MX%=0:MY%=0:FL%=0:FUEL%=FUEL%+200:S1%=10:S2%=10:GO%=1
  140PROCBOARD
  150PROCINVADERS
  160REPEAT:PROCINV:PROCSHIP:PROCDROIDS:PROCHOMER:FUEL%=FUEL%-RA%:IF FUEL%<0 FUEL%=0
  170COLOUR4:PRINTTAB(5,0);FUEL%;" ";:UNTIL C%=AL%+1 OR E%=1 OR FUEL%<=0
  180IF E%=1 OR FUEL%<=0 THEN200
  190IFC%=AL%+1 AND AL%=18 LV%=1:SP%=SP%-2:GOTO100 ELSE RA%=RA%+1:AL%=AL%+5:GOTO110
  200PROCINVADED
  210COLOUR8:PRINTTAB(6,15)"THE-GRID":COLOUR3:PRINTTAB(0,30)"ANOTHER INVASION?";
  220*FX15,0
  230A$=GET$:IF A$="Y" OR A$="y" GOTO80
  240IF A$="N" OR A$="n" PRINTTAB(0,31);:END
  250GOTO230
  260DEFPROCBOARD
  270COLOUR 4:PRINTTAB(0,0)"FUEL ";FUEL%:COLOUR6:PRINTTAB(10,0)"SCORE ";SC%
  280COLOUR1:FOR I%=1TO19:FOR J%=1TO28:VDU31,I%,J%,240:NEXT:NEXT
  290COLOUR5:PRINTTAB(0,30)"HI-SCORE ";HI%;
  300ENDPROC
  310DEFPROCCHARACTERS
  315VDU23,225,195,219,219,255,255,219,129,0,23,226,0,129,219,255,255,219,219,195
  320VDU23,227,254,252,24,124,124,24,252,254,23,228,127,63,24,62,62,24,63,127
  330VDU23,229,224,96,62,51,51,62,96,224,23,230,24,60,36,36,60,255,195,129 
  340VDU23,231,24,60,60,24,24,60,36,0,23,232,0,36,60,24,24,60,60,24
  350VDU23,233,0,0,102,252,252,102,0,0,23,234,0,0,102,63,63,102,0,0
  360VDU23,235,24,36,90,189,189,90,36,24,23,236,102,189,189,90,90,189,189,102
  370VDU23,237,36,129,219,255,126,36,66,129,23,240,24,24,24,255,255,24,24,24
  380ENDPROC
  390DEFPROCINVADERS
  410COLOUR2:FORI%=0TOAL%:X%(I%)=1+RND(18):Y%(I%)=H%:VDU31,X%(I%),Y%(I%),237:NEXT
  420ENDPROC
  430DEFPROCINV
  440R%=RND(AL%+1)-1
  450M%=RND(3)-2
  460IF Y%(R%)=-32 THEN 560
  470 T1%=FNPT((X%(R%)+M%),Y%(R%)):IF T1%=11 PROCFALLOUT:GOTO560
  480T2%=FNPT((X%(R%)+M%),(Y%(R%)+1)):IFT2%=11 PROCFALLOUT:GOTO560
  490COLOUR1:VDU31,X%(R%),Y%(R%),240
  500X%(R%)=X%(R%)+M%
  510IF M%=0 Y%(R%)=Y%(R%)+1
  520IF X%(R%)>19 X%(R%)=19
  530IF X%(R%)<1 X%(R%)=1
  540COLOUR2:VDU31,X%(R%),Y%(R%),237
  550IF Y%(R%)>28 E%=1
  560ENDPROC
  570DEFPROCSHIP
  580KP%=0
  590COLOUR1:VDU31,SX%,SY%,240
  600*FX15,0
  610IF INKEY(-99) VDU7:SX%=RND(18)+1:SY%=RND(28):GOTO690
  620 IF INKEY(-2) AND SX%<19 KP%=1:SX%=SX%+1:A%=228:IFFL%=0 X%=1:Y%=0:B%=234
  630IF KP%=1 THEN 690
  640IF INKEY(-65) AND SX%>1 KP%=1:SX%=SX%-1:A%=227:IF FL%=0 X%=-1:Y%=0:B%=233
  650IF KP%=1 THEN 690 
  660IF INKEY(-89) AND SY%>1 KP%=1:SY%=SY%-1:A%=225:IFFL%=0 X%=0:Y%=-1:B%=231
  670IF KP%=1 THEN 690
  680IF INKEY(-1) AND SY%<28 SY%=SY%+1:A%=226:IFFL%=0 X%=0:Y%=1:B%=232
  690IF INKEY(-74) OR FL%>0 PROCMISSILE
  700T%=FNPT(SX%,SY%):IFT%=11 OR T%=13 OR T%=2 E%=1 :GOTO 720
  710COLOUR6:VDU31,SX%,SY%,A%
  720ENDPROC
  730DEFPROCMISSILE
  740IF FL%=0 FL%=1:MX%=SX%:MY%=SY%
  750VDU31,MX%,MY%,240
  760MY%=MY%+Y%:MX%=MX%+X%
  770FL%=FL%+1
  780IF FL%=11 OR MX%>19 OR MX%<1 OR MY%<1 OR MY%>28 FL%=0:GOTO840 
  790P%=FNPT(MX%,MY%)
  800IFP%=2 OR P%=3 PROCHIT:FL%=0:GOTO840
  810IF P%=11 OR P%=5 FL%=0:GOTO840
  820IF P%=13 FL%=0:FUEL%=FUEL%+50+(RND(RA%)*50):VDU31,MX%,MY%,240:SOUND 0,-15,4,8:GOTO840 
  830COLOUR4:VDU31,MX%,MY%,B%
  840ENDPROC
  850DEFPROCHIT
  860FOR J%=0TO AL%
  870IF MX%<>X%(J%) OR MY%<>Y%(J%) THEN910
  880COLOUR11:VDU31,MX%,MY%,236
  890SC%=SC%+Y%(J%):C%=C%+1
  900Y%(J%)=-32
  910NEXT
  920SOUND 3,3,50,10
  930COLOUR6:PRINTTAB(16,0);SC%
  940IF HI%<SC% COLOUR5:HI%=SC%:PRINTTAB(9,30);HI%;
  950ENDPROC
  960DEFPROCFALLOUT
  970COLOUR1:VDU31,X%(R%),Y%(R%),240
  980SC%=SC%+Y%(R%)
  990C%=C%+1 
 1000Y%(R%)=-32
 1010SOUND3,3,50,10
 1020COLOUR6:PRINTTAB(16,0);SC%
 1030IF HI%<SC% COLOUR5:HI%=SC%:PRINTTAB(9,30);HI%;
 1040ENDPROC
 1050DEFPROCINVADED
 1060FORI=1TO20:SOUND0,-15,6,10:FORJ=1TO50:VDU19,1,RND(6);0;:NEXT:NEXT
 1070VDU20
 1080ENDPROC
 1090DEFPROCDROIDS
 1100VDU31,0,Q%,32,31,W%,29,32
 1110Q%=Q%+G%:W%=W%+L%
 1120IF Q%>27 G%=-1
 1130IF Q%<2 G%=1
 1140IF W%>=19 L%=-1
 1150IF W%<2 L%=1
 1160COLOUR4:VDU31,0,Q%,229,31,W%,29,230
 1170IF RND(1)>.97 COLOUR13:VDU31,W%,Q%,235:SOUND0,-15,2,4
 1180ENDPROC
 1190DEFPROCTITLES
 1200CLS:COLOUR1:FOR I%=0TO30:FORJ%=0TO19:PRINTCHR$240;:NEXT:NEXT
 1210COLOUR4:PRINTTAB(6,0)"THE-GRID"
 1220COLOUR3:PRINTTAB(2,2)"Can you halt the"'TAB(2,3)"Alien invasion of"'TAB(6,4)"the Grid."
 1230PRINT'"Avoid colliding withthe Aliens and evade";TAB(1,8)"the Fall-out from"TAB(1,9)"your own missiles."TAB(2,10)"Beware of HOMER."
 1240PRINTTAB(1,12)"Hit the fuel dumps"TAB(1,13)"dropped by he X-Y"TAB(2,14)"Droids to refuel." 
 1250COLOUR2:PRINTTAB(2,16)CHR$237"  ALIEN"
 1260COLOUR5:PRINTTAB(2,7)"@  HOMER"
 1270COLOUR4:PRINTTAB(2,18)CHR$230"  X-Y DROID"
 1280COLOUR11:PRINTTAB(2,19)CHR$236"  FALLOUT"
 1290COLOUR13:PRINTTAB(2,20)CHR$235"  FUEL DUMP"
 1300COLOUR6:PRINTTAB(2,21)CHR$225"  YOUR SHIP"
 1310COLOUR3:PRINTTAB(1,23)"CONTROLS:"TAB(2,25)"CAPS-LOCK  LEFT"TAB(2,26)"CTRL       RIGHT"TAB(2,27)"]          UP"TAB(2,28)"SHIFT      DOWN"TAB(2,29)"RETURN     FIRE"TAB(2,30)"SPACE      PANIC"
 1320COLOUR4:PRINTTAB(3,31)"PRESS <SPACE>";
 1330I=0:REPEATI=I+1:SOUND0,-15,I,10:UNTILI=5
 1340IF INKEY$(100)=" "THEN 1350 ELSE1330
 1350ENDPROC
 1360DEFFNPT(d%,e%)
 1370=POINT((d%*64)+32,1008-(e%*32))
 1380DEFPROCHOMER
 1390IF LV%=0THEN 1490
 1400IF SP%<2 SP%=2
 1410GO%=GO%+1:IF GO%<>SP% THEN1490
 1420Q1%=S1%:Q2%=S2%
 1430S1%=S1%+(S1%>SX%)-(S1%<SX%):S2%=S2%+(S2%>SX%)-(S2%<SX%)
 1440IF FNPT(S1%,S2%)=6 E%=1
 1450IF FNPT(S1%,S2%)=11 S1%=Q1%:S2%=Q2%:GOTO1480
 1460COLOUR1:VDU31,Q1%,Q2%,240
 1470COLOUR5:VDU31,S1%,S2%,64
 1480GO%=0
 1490ENDPROC

� THE GRID
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(�3,129,2,4,6,28,14,7,0,0,0,-80,80,80
(�23,1,0;0;0;0;
2�X%(18),Y%(18)
<�CHARACTERS
F	HI%=0
P�TITLES
Z3�:SC%=0:Q%=1:W%=2:G%=1:L%=1:FUEL%=0:LV%=0:SP%=8
dRA%=1:AL%=4
n� AL%>18 AL%=18
x� RA%>5 RA%=5
�gR%=0:M%=0:C%=0:E%=0:H%=1:SX%=10:SY%=28:A%=225:MX%=0:MY%=0:FL%=0:FUEL%=FUEL%+200:S1%=10:S2%=10:GO%=1
�
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�INVADERS
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�� E%=1 � FUEL%<=0 ��dH@
�H�C%=AL%+1 � AL%=18 LV%=1:SP%=SP%-2:�Dd@ � RA%=RA%+1:AL%=AL%+5:�Dn@
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�7�8:�6,15)"THE-GRID":�3:�0,30)"ANOTHER INVASION?";
�*FX15,0
� A$=�:� A$="Y" � A$="y" �DP@
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2� 4:�0,0)"FUEL ";FUEL%:�6:�10,0)"SCORE ";SC%
,�1:� I%=1�19:� J%=1�28:�31,I%,J%,240:�:�
"�5:�0,30)"HI-SCORE ";HI%;
,�
6��CHARACTERS
;N�23,225,195,219,219,255,255,219,129,0,23,226,0,129,219,255,255,219,219,195
@J�23,227,254,252,24,124,124,24,252,254,23,228,127,63,24,62,62,24,63,127
JH�23,229,224,96,62,51,51,62,96,224,23,230,24,60,36,36,60,255,195,129 
T@�23,231,24,60,60,24,24,60,36,0,23,232,0,36,60,24,24,60,60,24
^@�23,233,0,0,102,252,252,102,0,0,23,234,0,0,102,63,63,102,0,0
hJ�23,235,24,36,90,189,189,90,36,24,23,236,102,189,189,90,90,189,189,102
rI�23,237,36,129,219,255,126,36,66,129,23,240,24,24,24,255,255,24,24,24
|�
���INVADERS
�A�2:�I%=0�AL%:X%(I%)=1+�(18):Y%(I%)=H%:�31,X%(I%),Y%(I%),237:�
��
�	��INV
�R%=�(AL%+1)-1
�
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�� Y%(R%)=-32 � �TpB
�8 T1%=�PT((X%(R%)+M%),Y%(R%)):� T1%=11 �FALLOUT:�TpB
�:T2%=�PT((X%(R%)+M%),(Y%(R%)+1)):�T2%=11 �FALLOUT:�TpB
��1:�31,X%(R%),Y%(R%),240
�X%(R%)=X%(R%)+M%
�� M%=0 Y%(R%)=Y%(R%)+1
� X%(R%)>19 X%(R%)=19
� X%(R%)<1 X%(R%)=1
�2:�31,X%(R%),Y%(R%),237
&� Y%(R%)>28 E%=1
0�
:
��SHIP
D	KP%=0
N�1:�31,SX%,SY%,240
X*FX15,0
b+� �(-99) �7:SX%=�(18)+1:SY%=�(28):�trB
lD � �(-2) � SX%<19 KP%=1:SX%=SX%+1:A%=228:�FL%=0 X%=1:Y%=0:B%=234
v� KP%=1 � �trB
�E� �(-65) � SX%>1 KP%=1:SX%=SX%-1:A%=227:� FL%=0 X%=-1:Y%=0:B%=233
�� KP%=1 � �trB 
�D� �(-89) � SY%>1 KP%=1:SY%=SY%-1:A%=225:�FL%=0 X%=0:Y%=-1:B%=231
�� KP%=1 � �trB
�=� �(-1) � SY%<28 SY%=SY%+1:A%=226:�FL%=0 X%=0:Y%=1:B%=232
�� �(-74) � FL%>0 �MISSILE
�6T%=�PT(SX%,SY%):�T%=11 � T%=13 � T%=2 E%=1 :� �dPB
��6:�31,SX%,SY%,A%
��
�
��MISSILE
�!� FL%=0 FL%=1:MX%=SX%:MY%=SY%
��31,MX%,MY%,240
�MY%=MY%+Y%:MX%=MX%+X%

FL%=FL%+1
;� FL%=11 � MX%>19 � MX%<1 � MY%<1 � MY%>28 FL%=0:�DHC 
P%=�PT(MX%,MY%)
 !�P%=2 � P%=3 �HIT:FL%=0:�DHC
*� P%=11 � P%=5 FL%=0:�DHC
4O� P%=13 FL%=0:FUEL%=FUEL%+50+(�(RA%)*50):�31,MX%,MY%,240:� 0,-15,4,8:�DHC 
>�4:�31,MX%,MY%,B%
H�
R	��HIT
\� J%=0� AL%
f%� MX%<>X%(J%) � MY%<>Y%(J%) ��tNC
p�11:�31,MX%,MY%,236
zSC%=SC%+Y%(J%):C%=C%+1
�Y%(J%)=-32
��
�� 3,3,50,10
��6:�16,0);SC%
�%� HI%<SC% �5:HI%=SC%:�9,30);HI%;
��
�
��FALLOUT
��1:�31,X%(R%),Y%(R%),240
�SC%=SC%+Y%(R%)
�C%=C%+1 
�Y%(R%)=-32
��3,3,50,10
��6:�16,0);SC%
%� HI%<SC% �5:HI%=SC%:�9,30);HI%;
�

��INVADED
$1�I=1�20:�0,-15,6,10:�J=1�50:�19,1,�(6);0;:�:�
.�20
8�
B��DROIDS
L�31,0,Q%,32,31,W%,29,32
VQ%=Q%+G%:W%=W%+L%
`� Q%>27 G%=-1
j� Q%<2 G%=1
t� W%>=19 L%=-1
~� W%<2 L%=1
� �4:�31,0,Q%,229,31,W%,29,230
�+� �(1)>.97 �13:�31,W%,Q%,235:�0,-15,2,4
��
���TITLES
�&�:�1:� I%=0�30:�J%=0�19:�240;:�:�
��4:�6,0)"THE-GRID"
�I�3:�2,2)"Can you halt the"'�2,3)"Alien invasion of"'�6,4)"the Grid."
�z�'"Avoid colliding withthe Aliens and evade";�1,8)"the Fall-out from"�1,9)"your own missiles."�2,10)"Beware of HOMER."
�R�1,12)"Hit the fuel dumps"�1,13)"dropped by he X-Y"�2,14)"Droids to refuel." 
��2:�2,16)�237"  ALIEN"
��5:�2,7)"@  HOMER"
��4:�2,18)�230"  X-Y DROID"
�11:�2,19)�236"  FALLOUT"

 �13:�2,20)�235"  FUEL DUMP"
�6:�2,21)�225"  YOUR SHIP"
��3:�1,23)"CONTROLS:"�2,25)"CAPS-LOCK  LEFT"�2,26)"CTRL       RIGHT"�2,27)"]          UP"�2,28)"SHIFT      DOWN"�2,29)"RETURN     FIRE"�2,30)"SPACE      PANIC"
(�4:�3,31)"PRESS <SPACE>";
2I=0:�I=I+1:�0,-15,I,10:�I=5
<� �(100)=" "� �DFE ��TrE
F�
PݤPT(d%,e%)
Z=�(d%*64)+32,1008-(e%*32))
d��HOMER
n� LV%=0� �dRE
x� SP%<2 SP%=2
�GO%=GO%+1:� GO%<>SP% ��dRE
�Q1%=S1%:Q2%=S2%
�;S1%=S1%+(S1%>SX%)-(S1%<SX%):S2%=S2%+(S2%>SX%)-(S2%<SX%)
�� �PT(S1%,S2%)=6 E%=1
�+� �PT(S1%,S2%)=11 S1%=Q1%:S2%=Q2%:�dHE
��1:�31,Q1%,Q2%,240
��5:�31,S1%,S2%,64
�	GO%=0
��
�
00000000  0d 00 0a 0e f4 20 54 48  45 20 47 52 49 44 0d 00  |..... THE GRID..|
00000010  14 06 eb 32 0d 00 1e 28  e2 33 2c 31 32 39 2c 32  |...2...(.3,129,2|
00000020  2c 34 2c 36 2c 32 38 2c  31 34 2c 37 2c 30 2c 30  |,4,6,28,14,7,0,0|
00000030  2c 30 2c 2d 38 30 2c 38  30 2c 38 30 0d 00 28 12  |,0,-80,80,80..(.|
00000040  ef 32 33 2c 31 2c 30 3b  30 3b 30 3b 30 3b 0d 00  |.23,1,0;0;0;0;..|
00000050  32 12 de 58 25 28 31 38  29 2c 59 25 28 31 38 29  |2..X%(18),Y%(18)|
00000060  0d 00 3c 0f f2 43 48 41  52 41 43 54 45 52 53 0d  |..<..CHARACTERS.|
00000070  00 46 09 48 49 25 3d 30  0d 00 50 0b f2 54 49 54  |.F.HI%=0..P..TIT|
00000080  4c 45 53 0d 00 5a 33 db  3a 53 43 25 3d 30 3a 51  |LES..Z3.:SC%=0:Q|
00000090  25 3d 31 3a 57 25 3d 32  3a 47 25 3d 31 3a 4c 25  |%=1:W%=2:G%=1:L%|
000000a0  3d 31 3a 46 55 45 4c 25  3d 30 3a 4c 56 25 3d 30  |=1:FUEL%=0:LV%=0|
000000b0  3a 53 50 25 3d 38 0d 00  64 0f 52 41 25 3d 31 3a  |:SP%=8..d.RA%=1:|
000000c0  41 4c 25 3d 34 0d 00 6e  13 e7 20 41 4c 25 3e 31  |AL%=4..n.. AL%>1|
000000d0  38 20 41 4c 25 3d 31 38  0d 00 78 11 e7 20 52 41  |8 AL%=18..x.. RA|
000000e0  25 3e 35 20 52 41 25 3d  35 0d 00 82 67 52 25 3d  |%>5 RA%=5...gR%=|
000000f0  30 3a 4d 25 3d 30 3a 43  25 3d 30 3a 45 25 3d 30  |0:M%=0:C%=0:E%=0|
00000100  3a 48 25 3d 31 3a 53 58  25 3d 31 30 3a 53 59 25  |:H%=1:SX%=10:SY%|
00000110  3d 32 38 3a 41 25 3d 32  32 35 3a 4d 58 25 3d 30  |=28:A%=225:MX%=0|
00000120  3a 4d 59 25 3d 30 3a 46  4c 25 3d 30 3a 46 55 45  |:MY%=0:FL%=0:FUE|
00000130  4c 25 3d 46 55 45 4c 25  2b 32 30 30 3a 53 31 25  |L%=FUEL%+200:S1%|
00000140  3d 31 30 3a 53 32 25 3d  31 30 3a 47 4f 25 3d 31  |=10:S2%=10:GO%=1|
00000150  0d 00 8c 0a f2 42 4f 41  52 44 0d 00 96 0d f2 49  |.....BOARD.....I|
00000160  4e 56 41 44 45 52 53 0d  00 a0 41 f5 3a f2 49 4e  |NVADERS...A.:.IN|
00000170  56 3a f2 53 48 49 50 3a  f2 44 52 4f 49 44 53 3a  |V:.SHIP:.DROIDS:|
00000180  f2 48 4f 4d 45 52 3a 46  55 45 4c 25 3d 46 55 45  |.HOMER:FUEL%=FUE|
00000190  4c 25 2d 52 41 25 3a e7  20 46 55 45 4c 25 3c 30  |L%-RA%:. FUEL%<0|
000001a0  20 46 55 45 4c 25 3d 30  0d 00 aa 35 fb 34 3a f1  | FUEL%=0...5.4:.|
000001b0  8a 35 2c 30 29 3b 46 55  45 4c 25 3b 22 20 22 3b  |.5,0);FUEL%;" ";|
000001c0  3a fd 20 43 25 3d 41 4c  25 2b 31 20 84 20 45 25  |:. C%=AL%+1 . E%|
000001d0  3d 31 20 84 20 46 55 45  4c 25 3c 3d 30 0d 00 b4  |=1 . FUEL%<=0...|
000001e0  1b e7 20 45 25 3d 31 20  84 20 46 55 45 4c 25 3c  |.. E%=1 . FUEL%<|
000001f0  3d 30 20 8c 8d 64 48 40  0d 00 be 48 e7 43 25 3d  |=0 ..dH@...H.C%=|
00000200  41 4c 25 2b 31 20 80 20  41 4c 25 3d 31 38 20 4c  |AL%+1 . AL%=18 L|
00000210  56 25 3d 31 3a 53 50 25  3d 53 50 25 2d 32 3a e5  |V%=1:SP%=SP%-2:.|
00000220  8d 44 64 40 20 8b 20 52  41 25 3d 52 41 25 2b 31  |.Dd@ . RA%=RA%+1|
00000230  3a 41 4c 25 3d 41 4c 25  2b 35 3a e5 8d 44 6e 40  |:AL%=AL%+5:..Dn@|
00000240  0d 00 c8 0c f2 49 4e 56  41 44 45 44 0d 00 d2 37  |.....INVADED...7|
00000250  fb 38 3a f1 8a 36 2c 31  35 29 22 54 48 45 2d 47  |.8:..6,15)"THE-G|
00000260  52 49 44 22 3a fb 33 3a  f1 8a 30 2c 33 30 29 22  |RID":.3:..0,30)"|
00000270  41 4e 4f 54 48 45 52 20  49 4e 56 41 53 49 4f 4e  |ANOTHER INVASION|
00000280  3f 22 3b 0d 00 dc 0b 2a  46 58 31 35 2c 30 0d 00  |?";....*FX15,0..|
00000290  e6 20 41 24 3d be 3a e7  20 41 24 3d 22 59 22 20  |. A$=.:. A$="Y" |
000002a0  84 20 41 24 3d 22 79 22  20 e5 8d 44 50 40 0d 00  |. A$="y" ..DP@..|
000002b0  f0 20 e7 20 41 24 3d 22  4e 22 20 84 20 41 24 3d  |. . A$="N" . A$=|
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00000fe0  49 3d 49 2b 31 3a d4 30  2c 2d 31 35 2c 49 2c 31  |I=I+1:.0,-15,I,1|
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00001040  33 32 29 29 0d 05 64 0b  dd f2 48 4f 4d 45 52 0d  |32))..d...HOMER.|
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000010b0  31 25 3e 53 58 25 29 2d  28 53 31 25 3c 53 58 25  |1%>SX%)-(S1%<SX%|
000010c0  29 3a 53 32 25 3d 53 32  25 2b 28 53 32 25 3e 53  |):S2%=S2%+(S2%>S|
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000010e0  19 e7 20 a4 50 54 28 53  31 25 2c 53 32 25 29 3d  |.. .PT(S1%,S2%)=|
000010f0  36 20 45 25 3d 31 0d 05  aa 2b e7 20 a4 50 54 28  |6 E%=1...+. .PT(|
00001100  53 31 25 2c 53 32 25 29  3d 31 31 20 53 31 25 3d  |S1%,S2%)=11 S1%=|
00001110  51 31 25 3a 53 32 25 3d  51 32 25 3a e5 8d 64 48  |Q1%:S2%=Q2%:..dH|
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0000115c
GAMES1/GRIDDER.m0
GAMES1/GRIDDER.m1
GAMES1/GRIDDER.m2
GAMES1/GRIDDER.m4
GAMES1/GRIDDER.m5