Memory map

Page	Byte	Address	Description
64	0	16384	Loading screen
91	128	23424	Decryption Routine
92	176	23728	Indirect Jump
94	0	24064	Game Options
94	1	24065	Unused
94	4	24068	Font Pointer
94	6	24070	High Score
94	9	24073	High Score Table
94	32	24096	Hall Of Fame Names
94	53	24117	Hall Of Fame Last Name
94	56	24120	Hall Of Fame Name End
94	64	24128	Random Number
94	66	24130	Game Timer
94	80	24144	Planet Data
94	82	24146	Frame Updated
94	83	24147	Last Frame
94	86	24150	Sprite Cached Y
94	87	24151	Sprite Width
94	88	24152	Sprite Height
94	89	24153	Sprite Rows Left
94	90	24154	Sprite Cached Rows
94	93	24157	Space Key Latch
94	94	24158	Alien Count
94	95	24159	1UP Score
94	98	24162	2UP Score
94	101	24165	Active Player
94	102	24166	Current menu item colour attribute
94	103	24167	Game Delay Timer
94	104	24168	Teleport Restore
94	105	24169	Debris Count
94	106	24170	Debris Y
94	108	24172	Player Inactive
94	109	24173	Hall Of Fame Timer
94	111	24175	Hall Of Fame Index
94	112	24176	Hall Of Fame Fire Lock
94	113	24177	High Score Player
94	114	24178	High Score Other Player
94	115	24179	High Score Done
94	116	24180	High Score Player Copy
94	117	24181	Hall Of Fame Pointer
94	119	24183	High Score Position
94	120	24184	Hall Of Fame Name
94	123	24187	Debris Pitch
94	124	24188	Previous Game Options
94	160	24224	Active Player Level
94	161	24225	Active Player Lives
94	162	24226	Level Parity
94	163	24227	Rover Cargo Flag
94	164	24228	Inactive Player Level
94	165	24229	Inactive Player Lives
94	166	24230	Inactive Level Parity
94	167	24231	Inactive Rover Cargo Flag
94	168	24232	Unused
96	0	24576	Laser Beam Parameters
96	96	24672	Explosion Slot
96	120	24696	Jetman Slot
96	142	24718	Fuel Level
96	144	24720	Rover Slot
96	168	24744	World Slots
97	8	24840	Object Slots
97	128	24960	Alien Base Slot
97	152	24984	Bomb Slot
97	176	25008	Alien States
98	64	25152	Actor List End
112	0	28672	Active Terrain Data
116	0	29696	Inactive Terrain Data
128	0	32768	Security Check
128	10	32778	Game Initialisation
128	44	32812	Game Restart
128	209	32977	Game Selection Menu
128	253	33021	Queue Menu Tune
129	14	33038	Game Select Attribute Table
129	21	33045	Game Select Y Position Table
129	28	33052	Messaging: Game Selection Title
129	138	33162	Messaging: Copyright
129	171	33195	Write Menu Line
129	187	33211	Start Game
130	9	33289	Frame Update
130	47	33327	Reset Modified Code
130	63	33343	Reset Modified Code In Frame
130	74	33354	Limit Frame Rate
130	88	33368	Unused
130	89	33369	Next Object Slot
130	152	33432	Controls: Pause
130	197	33477	Jump Table
132	173	33965	Reset Screen Buffer
132	180	33972	Fill Memory
132	187	33979	Reset Attribute Buffer
132	216	34008	Create Game Window
132	247	34039	Reset Planet
133	6	34054	Calculate Attribute Address
133	30	34078	Calculate Screen Address
133	61	34109	Remap Alien Sprite
133	104	34152	Fetch Sprite
133	127	34175	Fetch Actor Sprite
133	142	34190	XOR Sprite Loop
133	217	34265	Shift Old Sprite Pair
133	246	34294	Screen Address One Pixel Above
134	6	34310	XOR Sprite Pair Up
134	20	34324	Prepare Sprite Write
134	52	34356	Position And Draw Sprite
134	64	34368	Draw Cached Sprite
134	79	34383	Clear Sprite Scratch
134	94	34398	Load Sprite Scratch
134	127	34431	Reset Sprite Fields
134	161	34465	Position Sprite
135	1	34561	Draw Sprite
135	51	34611	Colourise Sprite
135	124	34684	Draw Sprite Pair
135	135	34695	Draw Actor Sprite
135	185	34745	Write Sprite Row
136	7	34823	Continue Sprite Write
136	38	34854	Fetch And Draw
136	145	34961	Clear Sprite Cache
136	163	34979	Fetch Sprite Size
136	177	34993	Read Sprite Header
136	232	35048	Load Sprite Pointers
137	10	35082	Write Sprite Attributes
137	49	35121	Fill Attribute Row
137	71	35143	Negate Pair
137	79	35151	Display Lives
137	156	35228	Add Points To Score
137	191	35263	Print Scores
137	239	35311	Print Character
138	17	35345	Print Colour String
138	55	35383	Print Banner
138	81	35409	Messaging: Banner Text
138	92	35420	Mask Sprite
138	232	35560	Clear Mask Scratch
138	247	35575	Position Mask Sprite
139	82	35666	Reload Mask Cache
139	115	35699	Draw Object Sprite
139	165	35749	Blank Play Area
139	187	35771	Draw HUD Panel
140	1	35841	Draw Gauge
140	62	35902	Flash Score Label
140	95	35935	Unset Flash Text
140	108	35948	Flash 2UP Score Label
140	113	35953	Handler: Jetman
140	188	36028	Handler: Jetman Walk
141	6	36102	Handler: Jetman Movement
142	90	36442	Face Jetman Right
142	197	36549	Face Jetman Left
143	52	36660	Apply Upward Thrust
143	97	36705	Clear Jetman Thrust
143	106	36714	Controls: Cursor Joystick
143	144	36752	Handler: Controls
143	155	36763	Controls: Kempston Joystick
143	159	36767	Controls: Keyboard
143	244	36852	Land Jetman
144	5	36869	Launch Jetman
144	32	36896	Initialise Jetman
144	123	36987	Apply Jetman Speed
145	92	37212	Draw New Column
145	124	37244	Draw Terrain Column
145	158	37278	Locate Terrain Cell
145	187	37307	Read Terrain Cell
145	226	37346	Handler: Moon Rover
147	12	37644	Board Moon Rover
147	62	37694	Test Space Key
147	86	37718	Draw Terrain
147	149	37781	Find Unused Alien Slot
147	166	37798	Place Actor At Scroll
147	232	37864	Handler: Falling Platform
148	92	37980	Test Action Key
148	102	37990	Spawn Alien
149	49	38193	Handler: Meteor
149	182	38326	Stamp Terrain Tile
150	84	38484	Handler: Drifting Alien
151	14	38670	Handler: Mr Magnetic Brella
152	132	39044	Test Alien Beside Slot
152	174	39086	Clear Terrain Under Actor
153	6	39174	Handler: The Block
153	60	39228	Handler: Bouncing Wheel
153	148	39316	Handler: Spinner
154	47	39471	Handler: Saturn
154	226	39650	Handler: Shooter
155	187	39867	Handler: The Pip
156	35	39971	Set Default Values
156	58	39994	Alien States
156	250	40186	Alien Lookup Table
157	90	40282	Jetman Default Data
157	114	40306	Levels Alien Lookup Table
157	128	40320	Default Hall Of Fame Names
157	152	40344	Default High Score
157	176	40368	Jetman Tune Table
157	192	40384	Handler: Laser Beam
158	44	40492	Animate: Laser Beam
158	202	40650	Animate From Scroll
158	220	40668	Handler: Rover Frames
159	94	40798	Initialise Objects
159	106	40810	Step Pickup Candidate
159	112	40816	Handler: Pickups
160	2	40962	Wrap World X
160	8	40968	Object Defaults
160	104	41064	Pickup Defaults
160	248	41208	Handler: Pickup Action
161	170	41386	Handler: Pickup
162	83	41555	Fill Pickup Debris
162	114	41586	Animate Pickup Debris
162	153	41625	Start Teleport
162	207	41679	Finish Teleport
162	245	41717	Clear Sprite Caches
163	10	41738	Resume Pickup
163	19	41747	Pickup Colours
163	23	41751	Handler: Reset Laser Beam Slots
163	37	41765	Handler: World Object
163	120	41848	Release Carried Item
163	156	41884	Attach Carried Item
163	193	41921	Place Carried Item
163	255	41983	Handler: Held Object
164	186	42170	Compare Actor Distance
164	231	42215	Test Jetman Action
165	34	42274	Clamp Object To Ground
165	58	42298	Spawn Linked Object
165	121	42361	Handler: Player Shot
167	60	42812	Start Small Explosion
167	66	42818	Handler: Small Explosion
167	93	42845	Start Crater
167	102	42854	Start Explosion
167	131	42883	Handler: Sparkle Burst
167	146	42898	Fragment Colours
167	150	42902	Test Laser Hits
167	226	42978	Test One Hit
168	28	43036	Handler: Player Shot Launch
168	38	43046	Initialise New Level
168	76	43084	Initialise New Game
168	128	43136	1UP/ 2UP Swapper
168	181	43189	Lose Life
168	227	43235	Game Over
169	75	43339	Messaging: Game Over
169	147	43411	Move Debris Particle
170	75	43595	Debris Particles
170	155	43675	Animate Debris
170	223	43743	Debris Defaults
171	47	43823	Initialise Debris
171	72	43848	Animate Debris Burst
171	157	43933	Copy Debris Template
171	169	43945	Draw Current Actor
171	186	43962	Handler: Missile Launcher
172	57	44089	Align To Rover
173	0	44288	Handler: Colourise 2x2
173	11	44299	Flash Attribute
173	23	44311	Flash Attribute Alternative
173	34	44322	Colourise Banner
173	51	44339	Clear Banner Colour
173	54	44342	Test Actor Side
173	89	44377	Handler: Alien Base
173	171	44459	Handler: Upward Missile
173	234	44522	Handler: Upward Missile Flame
174	55	44599	Handler: Missile Spawner
174	120	44664	Spawn Missile
175	28	44828	Handler: Sideways Missile
176	59	45115	Convert To Debris
176	101	45157	Handler: Sideways Missile Flame
176	209	45265	Test Target Range
177	29	45341	Explode Object Slots
177	40	45352	Handler: Alien Base Plasma
177	111	45423	Convert Object Slots
177	164	45476	Animate Crater
177	211	45523	Scan Object Slots
177	233	45545	Advance Position
178	15	45583	Score Small Hit
178	24	45592	Tick Then Explode
178	162	45730	Test Jetman Range
178	215	45783	Kill Jetman
178	249	45817	Drop World Objects
179	57	45881	Bounce Jetman Right
179	61	45885	Tick Actor Frame
179	123	45947	Explode At Ground
179	133	45957	Reset Alien States
179	144	45968	Count Death Timer
179	163	45987	Message: Teleporting
179	208	46032	Messaging: Teleporting
179	220	46044	Initialise Terrain
179	232	46056	Handler: Jetman Death
180	96	46176	Handler: Falling Sprite
180	194	46274	Fill Debris Slots
181	46	46382	Show Laser Estimate
181	148	46484	Messaging: Missile Launch
181	220	46556	Messaging: Missile Launch
182	153	46745	Convert To Base 10
182	174	46766	Move By Speed
182	207	46799	Dispatch Object State
182	235	46827	Ignore Object State
182	236	46828	Handler: Armed Bomb
183	49	46897	Handler: Bombs
183	133	46981	Collect Bomb
183	168	47016	Handler: Bomb
183	188	47036	Carry Bomb
184	16	47120	Fly Thrown Bomb
184	126	47230	Colourise Rover Lights
184	154	47258	Tick Object Timer
184	168	47272	Sounds: Laser Beam
184	180	47284	Sounds: Laser Missile Hit
184	189	47293	Sounds: Take Object
184	195	47299	Sounds: Drop Item
184	201	47305	Sounds: Pickup Item
184	212	47316	Sounds: Short Beep
184	218	47322	Play Square Wave
184	232	47336	Play Repeated Tone
184	242	47346	Sounds: Debris
184	255	47359	Sounds: Explosion
185	24	47384	Play Inverted Tone
185	34	47394	Tick Wave Duration
185	45	47405	Play Wave Sequence
185	52	47412	Tick Wave Table
185	75	47435	End Sound
185	80	47440	Initialise Explosion
185	188	47548	Queue Tune
185	210	47570	Tune Data
186	158	47774	Menu Tune Table
186	164	47780	Player Tune Table
186	168	47784	Tune Data Extra
186	190	47806	Sprite Table Origin
186	192	47808	Sprite Table
188	158	48286	Graphic: Moon Rover Attributes
188	188	48316	Sprite: None
188	190	48318	Sprite: Jetman Walking
189	204	48588	Sprite: Jetman Flying
190	144	48784	Graphic: Moon Rover
208	116	53364	Sprite: Teleporter
209	80	53584	Unused
209	81	53585	The UDG for the lives icon
209	89	53593	Sprite: Player Shot
209	103	53607	Sprite: Turret
211	71	54087	Main Font
213	159	54687	Sprite: The Blob
214	151	54935	Sprite: Meteor
215	159	55199	Sprite: Sparkle Burst
216	112	55408	Sprite: Player Shot
216	126	55422	Sprite: Small Explosion
216	148	55444	Sprite: Mr Magnetic Brella
217	118	55670	Sprite: Platform
217	135	55687	Sprite: Missile Launcher
221	151	56727	UDG Graphics
222	95	56927	HUD Panel Layout
222	185	57017	HUD Panel Attributes
223	19	57107	Graphic: Alien Base
225	147	57747	Sprite: Missile
225	213	57813	Sprite: Unused
226	59	57915	Sprite: Missile Flame
226	167	58023	Sprite: The Block
227	143	58255	Sprite: Missile
227	181	58293	Sprite: Missile Flame
228	1	58369	Sprite: Unused
228	154	58522	Sprite: Unused
229	51	58675	Sprite: Alien Base Plasma
229	223	58847	Sprite: Crater
230	223	59103	Sprite: Linked Object
231	3	59139	Sprite: Saturn
232	72	59464	Sprite: Spinner
233	16	59664	Sprite: Jetman Falling
233	156	59804	Sprite: Shooter
234	131	60035	Sprite: The Pip
234	141	60045	Graphic: Explosion
237	81	60753	Sprite: Bouncing Wheel
238	23	60951	Sprite: Bomb
238	122	61050	Odd-Level Sprite Table
238	182	61110	Unused
238	186	61114	Sprite: Tubular Grabber
239	162	61346	Sprite: The Cross
240	170	61610	Sprite: Sparkle
241	106	61802	Sprite: The Dog
242	50	62002	Print Rank Message
242	116	62068	Messaging: High Score Suffixes
242	149	62101	Handle Name Input
243	62	62270	Return To Restart
243	69	62277	Insert High Score
243	191	62399	Compare High Scores
244	16	62480	Show Hall Of Fame
244	170	62634	Messaging: Hall Of Fame
244	198	62662	Handler: High Score Messaging
244	251	62715	Messaging: High Score
245	53	62773	Prepare Name Entry
245	110	62830	Handler: New High Score
245	227	62947	Start Name Entry
245	236	62956	Print 1UP/ 2UP Levels
246	65	63041	Get Level Digits
246	88	63064	Get Inactive Level Digits
246	98	63074	Helper: Colour Levels Messaging Green
246	110	63086	Terrain UDGs
246	206	63182	Default Terrain Data
250	206	64206	Unused
255	68	65348	Tune Buffer
255	84	65364	Tune Pointer
255	86	65366	Unused
255	136	65416	Unused