Routines

Address	Description
23424	Decryption Routine
23680	Start Game
24851	Choose Item Sites
29139	Make Click
29152	Play Square Wave
29168	Play Arrival Sound
29182	Play Pick-Up Sound
29188	Play Unused Sound
29194	Play Object Warble
29207	Play Warble
29236	Play Flutter Sound
29260	Play Hit Sound
29276	Play Change Sound
29283	Play Bump Sound
29301	Play Moving Sound
29331	Play Crash Sound
29349	Play Short Crash Sound
29355	Play Explosion Sound
29386	Play Explosion Hit Sound
29391	Play Beam Sound
29426	Play Shot Sound
29443	Play Patterned Noise
29457	Play Noise Burst
29464	Play Removal Sound
33607	Adjust Terrain Slope
33675	Adjust Second Slope Tile
33697	Adjust First Slope Tile
33742	Print Text Repeatedly
33750	Complete Planet
34325	Run Title Menu
34386	Draw Menu Options
34406	Draw Menu Option
34448	Update Control Icon
34489	Read Menu Keys
34532	Change Control Method
34706	Spawn Special Enemy
34735	Update Enemy Spawning
34806	Find Free Slot
34835	Fire Random Shot
34848	Fire Shot When Hit
34859	Fire Shot
35085	Set Random Speed
35124	Set Falling Speed
35184	Reverse Vertical Speed
35206	Swap Objects
35214	Copy Position
35283	Spawn Enemy
35845	Accelerate Object
35903	Limit Speed To Range
35928	Accelerate Towards Player
36018	Explode Player Ship
36137	Start Debris Piece
36157	Skip Enemy Slot
36162	Update Enemies
36385	Count Active Enemy
36397	Apply Collision Effects
36554	Apply Player Collision
36638	Slow Ship
36692	Damage Ship
36804	Drain Fuel
36810	Bounce Ship
36875	Destroy Object
36885	Add Fuel
36896	Add Ship
36912	Mark Object Hit
36917	Explode Hit Object
36925	Start Explosion
36950	Nudge Object
37018	Move Object Back And Forth
37031	Move Object And Stop
37069	Reverse Object Speed
37100	Process Object Flags
37130	Step Object State
37187	Find Hit Position
37244	Check Shot Collisions
37428	Score Destroyed Object
37470	Add To Score
37556	Choose Target
37626	Set Facing
37639	Update Chasing Object
37697	Accelerate Towards Target
37773	Update Object
37874	Update Type 13 Object
37975	Update Type 1C Object
38036	Update Type 1D Object
38056	Update Type 19 Object
38151	Update Type 14 Object
38180	Update Type 1E Object
38239	Set Object Position
38258	Update Crystal Stack
38616	Update Type 15 Object
38692	Start Crystal Object
38845	Find Free Enemy Slot
38879	Run Object Behaviour
38911	Chase Player
38967	Chase Player Briefly
38989	Accelerate Randomly
39018	Choose Acceleration
39243	Clear Object Speeds
39259	Run Type 19 Behaviour
39526	Initialise Game
39538	Fill Attributes White
39550	Clear Pixels
39562	Mask Map Table
39578	Play Music Until Key Pressed
39593	Play Music
39604	Play Note
39875	Read Keyboard Port
39887	Add A To HL
39898	Update Beams
40206	Check Beam Hit
40229	Erase Beam
40240	Draw Beam
40275	Find Beam Extent
40369	Test Boxes Overlap
40379	Test Horizontal Overlap
40408	Test Vertical Overlap
40430	Find Slope Overlap
40501	Test Slope Collision
40570	Find Mirrored Slope Overlap
40675	Read Pause Keys
40693	Fade Out And Clear Playfield
40702	Fade Out Playfield
40748	Clear Playfield
40782	Check Pause
40788	Check Pause And Silence
40817	Short Delay
41137	Print Character
41179	Print Wide Character
41237	Print Text
41289	Get Screen Address
41328	Find Attribute Address
41357	Run Object Handler
41375	Fetch Object Frame Table
41386	Get Table Entry
41395	Move Up A Row In DE
41411	Move Up A Row
41433	Clip Second Sprite
41450	Clip First Sprite
41467	Clip Sprite Vertically
41500	Read Sprite Size
41507	Read Sprite Header
41524	Select Erase Sprite
41543	Select Draw Sprite
41574	Set Second Row Group
41594	Set First Row Group
41611	Find Object Screen Address
41664	Add Speeds To Position
41685	Subtract Speeds From Position
41706	Reset Sprites
41731	Draw Sprites
42366	Find Buffer Address
42399	Draw Sprites Directly
42537	Erase Aligned Row Directly
42601	Next Row Of Second Sprite
42607	Draw Next Row
42616	Draw Aligned Row Directly
42674	Erase Aligned Row In Buffer
42721	Erase Shifted Row In Buffer
42803	Draw Aligned Row In Buffer
42844	Draw Shifted Row In Buffer
42916	Erase Mirrored Row Directly
42966	Draw Mirrored Row Directly
43010	Delay
43173	Add To Stack
43225	Build Stack Graphic
43252	Check Map Object Collisions
43521	Bounce Horizontally
43541	Bounce Vertically
43559	Reverse And Halve Speed
43575	Build Carried Item Graphic
43668	Attach Item To Ship
43735	Check Item Pickup
43928	Test Box Against Ship
43944	Check Object Hit By Shot
44019	Mark Cell Destroyed
44040	Find Cell Bit
44073	Check Object Against Shots
44084	Free Object Slot
44128	Update Map Objects
44253	Trim Object Sprite
44315	Draw Object
44327	Prepare Erase
44360	Prepare Draw
44478	Fetch Frame Sprite
44504	Find Object Screen Position
44696	Set Object Attributes
44804	Set Pair Attributes
45033	Build Ship
45212	Add Ship Part
45333	Read Controls
45423	Read Input Device
45620	Update Ship Speeds
45781	Update Vertical Scroll Speed
45858	Limit Vertical Speed
45878	Draw Rows
45910	Erase Rows
46058	Add Shot Offset
46066	Choose Random Colour
46083	Choose Random Step
46100	Update Special Shot
46211	Update Shot
46517	Draw Shot
46632	Update Left Shot
46828	Test Shot Hits Ground
46854	Update Shots
46897	Fire Weapons
46930	Launch Shot
47155	Check Special Shot
47255	Make Shot Row
47323	Build Shot Pattern
47356	Clear Shot
47370	Start Shot At Ship
47430	Find Tile Record
47482	Compare Tile Position
47488	Find Horizontal Move
47547	Find Vertical Move
47596	Set Ship Speeds
47627	Zero Small Speed
47649	Check Terrain Collision
48625	Take Three Eighths
48638	Double Number
48643	Halve Number
48648	Negate Number
48656	Select Previous Zone
48678	Select Next Column
48707	Select Next Tile
48783	Start Terrain Check
48871	Find Tiles Overlapped
48998	Move Object
49029	Select Mirrored Erase
49080	Select Mirrored Draw
49123	Update Stars
49202	Update Star Layer
49422	Check Star Position
49490	Scale Scroll Speed
49580	Create Ship Piece
49614	Check Item Delivery
49791	Draw Piece
49969	Limit Height
49980	Save Restart Position
50036	Run Frame
50413	Draw Ship Top
50687	Draw Side Flames
50898	Draw Main Flame
51107	Fetch Sprite Type
51121	Test Direction
51196	Update Horizontal Speed
51231	Update Horizontal Scroll Speed
51304	Limit Horizontal Speed
51328	Limit Speed
51567	Draw Bitmap
51601	Fill Attributes
51635	Copy Attributes
51761	Print Ships Remaining
51775	Draw HUD
51879	Colour Fuel Gauge
51915	Draw Frame
52142	Draw Fuel Gauge Frame
52209	Fetch Position
52280	Draw Line Pair
52301	Use Fuel
52323	Check Fuel Empty
52343	Update Fuel Gauge
52469	Advance Screen Address
52488	Set Up Segment
52587	Read Segment Shapes
52827	Count Vertical Contact
52857	Record Floor Contact
52887	Record Ceiling Contact
52917	Record Left Contact
52936	Record Right Contact
52955	Note Wall Contact
53012	Test Attribute Address
53046	Jump To Painter
53048	Colour Segment
53327	Paint One Column
53347	Paint Two Columns
53378	Paint Three Columns
53437	Draw Terrain
53906	Test Left Column
53952	Test Right Column
53978	Test Top Row
53985	Test Bottom Row
54019	Next Record
54041	Next Step
54226	Set Up Piece
54664	Set Up Flat Piece
54898	Locate Picture
55003	Adjust Piece
55040	Jump To Drawing Routine
55057	Finish Step
55081	End Segment
55288	Finish Segment
55306	Next Segment
55402	Draw Edge Pixels
55514	Fill Slope Edge
55607	Find Segment Address
55673	Note Segment Start
55696	Adjust Edge Address
55720	Draw Vertical Edge
56102	Call Edge Painter
56105	Move Up Edge Rows
56129	Fill Two Edge Rows
56137	Fill Four Edge Rows
56155	Fill Edge Row Pair
56201	Draw Slope Rows
56247	Draw Slope Rows From Edge
56317	Draw Mirrored Rows From Edge
56391	Draw Mirrored Slope Rows
56481	Begin Life
56690	Scroll In World
56697	Look For Ground
56767	Finish Scroll In
56824	Scroll World
57057	Set Row Attributes
57079	Choose Row Attribute
57096	Make Tiles
57405	Compare Slot With Site
57442	Free Distant Slots
57487	Load Map Objects
57578	Clear Free Slot Flags
57620	Add Map Objects
57878	Find Map Address
57909	Get Tile
57924	Get Blank Tile
57929	Draw Flat Rows
58328	Set Slope Parameters
58396	Fill Strip With Pattern
58507	Draw One Byte Rows
58535	Draw Three Byte Rows
58575	Draw Two Byte Rows
58609	Draw Mirrored Three Byte Rows
58667	Draw Mirrored Two Byte Rows
58715	Draw Mirrored One Byte Rows
61885	Colour Ship
62011	Get Random Numbers
62060	Show Title Screen
62219	Clear Bytes
62225	Reset Life
62366	Reset Player State
62397	Start New Game
62489	Colour Playfield
62498	Run Game
62528	Prepare Life
62540	Play Life
62572	Run Life
62603	Explode Ship
62662	Lose Life
62702	Print Player
62716	Game Over
62762	Finish Planet
62797	Update High Score
62865	Swap Players
62916	Swap Bytes
63467	Build Shape Tables
63574	Build Reverse Table
63595	Build Tables
63637	Read Shape Header
63658	Merge Shifted Byte
63673	Merge Background Byte
63682	Fetch Shifted Byte
63689	Merge Next Shifted Byte
63696	Next Shift
63714	Build Shifted Shape A
63801	Build Shifted Shape B
64512	Copy Game Down