Address Description
5B80
Decryption Routine
5CB0
Indirect Jump
8000
Security Check
800A
Game Initialisation
802C
Game Restart
80D1
Game Selection Menu
80FD
Routine at 80FD
81AB
Write Menu Line
81BB
Start Game
8209
Routine at 8209
822F
Routine at 822F
823F
Routine at 823F
824A
Limit Frame Rate
8258
Routine at 8258
8298
Controls: Pause
84AD
Reset Screen Buffer
84B4
Reset Routine
84BB
Reset Attribute Buffer
84D8
Create Game Window
84F7
Reset Planet
8506
Calculate Attribute Address
851E
Calculate Screen Address
853D
Routine at 853D
8568
Routine at 8568
857F
Routine at 857F
858E
Routine at 858E
85F6
Screen Address One Pixel Above
8606
Routine at 8606
8614
Routine at 8614
864F
Routine at 864F
865E
Routine at 865E
867F
Routine at 867F
86A1
Routine at 86A1
8701
Routine at 8701
8733
Routine at 8733
877C
Routine at 877C
8787
Routine at 8787
87B9
Routine at 87B9
8807
Routine at 8807
8826
Routine at 8826
8891
Routine at 8891
88A3
Routine at 88A3
88B1
Routine at 88B1
88E8
Routine at 88E8
890A
Routine at 890A
8931
Routine at 8931
8947
Routine at 8947
894F
Display Lives
899C
Add Points To Score
89BF
Print Scores
89EF
Print Character
8A11
Print Colour String
8A37
Print Banner
8A5C
Routine at 8A5C
8B73
Routine at 8B73
8BA5
Routine at 8BA5
8BBB
Draw HUD Panel
8C01
Draw Gauge
8C3E
Flash Score Label
8C71
Routine at 8C71
8CBC
Routine at 8CBC
8D06
Routine at 8D06
8E5A
Routine at 8E5A
8EC5
Routine at 8EC5
8F34
Routine at 8F34
8F61
Routine at 8F61
8F6A
Controls: Cursor Joystick
8F90
Handler: Controls
8F9B
Controls: Kempston Joystick
8F9F
Controls: Keyboard
8FF4
Routine at 8FF4
9005
Routine at 9005
9020
Routine at 9020
907B
Routine at 907B
917C
Routine at 917C
919E
Routine at 919E
91BB
Routine at 91BB
91E2
Routine at 91E2
930C
Routine at 930C
933E
Routine at 933E
9356
Draw Terrain?
9395
Find Unused Alien Slot
93A6
Routine at 93A6
945C
Routine at 945C
9466
Routine at 9466
9531
Routine at 9531
95B6
Routine at 95B6
9654
Routine at 9654
970E
Routine at 970E
9C23
Set Default Values
9DC0
Handler: Laser Beam
9E2C
Animate: Laser Beam
9ECA
Routine at 9ECA
9EDC
Routine at 9EDC
9F5E
Routine at 9F5E
9F6A
Routine at 9F6A
A0F8
Routine at A0F8
A1AA
Routine at A1AA
A2F5
Routine at A2F5
A30A
Routine at A30A
A317
Handler: Reset Laser Beam Slots
A325
Routine at A325
A378
Routine at A378
A39C
Routine at A39C
A3C1
Routine at A3C1
A3FF
Routine at A3FF
A4BA
Routine at A4BA
A4E7
Routine at A4E7
A522
Routine at A522
A53A
Routine at A53A
A579
Routine at A579
A73C
Routine at A73C
A766
Routine at A766
A796
Routine at A796
A7E2
Routine at A7E2
A826
Initialise New Level
A84C
Initialise New Game
A880
1UP/ 2UP Swapper
A8B5
Routine at A8B5
A8E3
Game Over
A993
Routine at A993
AA9B
Routine at AA9B
AB2F
Routine at AB2F
AB48
Routine at AB48
AB9D
Routine at AB9D
ABA9
Routine at ABA9
AC39
Routine at AC39
AD00
Handler: Colourise 2x2
AD0B
Routine at AD0B
AD22
Routine at AD22
AD33
Routine at AD33
AD36
Routine at AD36
B1A4
Routine at B1A4
B1D3
Routine at B1D3
B1E9
Routine at B1E9
B20F
Routine at B20F
B218
Routine at B218
B2F9
Routine at B2F9
B339
Routine at B339
B33D
Routine at B33D
B37B
Routine at B37B
B385
Reset Alien States
B390
Routine at B390
B3A3
Message: Teleporting
B3DC
Initialise Terrain
B3E8
Routine at B3E8
B460
Routine at B460
B4C2
Routine at B4C2
B52E
Routine at B52E
B594
Messaging: Missile Launch
B699
Convert To Base 10
B6AE
Routine at B6AE
B6CF
Routine at B6CF
B6EB
Routine at B6EB
B6EC
Routine at B6EC
B731
Routine at B731
B785
Routine at B785
B7A8
Handler: Bomb
B7BC
Routine at B7BC
B810
Routine at B810
B87E
Routine at B87E
B89A
Routine at B89A
B8A8
Sounds: Laser Beam
B8B4
Sounds: Laser Missile Hit
B8BD
Routine at B8BD
B8C3
Routine at B8C3
B8C9
Sounds: Pickup Item
B8D4
Routine at B8D4
B8DA
Play square wave sound
B8E8
Routine at B8E8
B8F2
Routine at B8F2
B8FF
Routine at B8FF
B918
Routine at B918
B922
Routine at B922
B92D
Play Wave Sequence
B934
Routine at B934
B94B
Sound: Finish Effect
B950
Routine at B950
B9BC
Routine at B9BC
F232
New High Score Suffix
F295
Routine at F295
F33E
Routine at F33E
F345
Routine at F345
F3BF
Routine at F3BF
F410
Hall Of Fame
F4C6
Handler: High Score Messaging
F535
Routine at F535
F56E
Handler: New High Score
F5E3
Routine at F5E3
F5EC
Print 1UP/ 2UP Levels
F641
Active Player Level
F662
Helper: Colour Levels Messaging Green