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 Entry Point
94	4	24068	Map
98	4	25092	View Patterns
98	164	25252	Strip List Table
99	52	25396	Rectangle List Table
99	124	25468	Rectangle Lists
101	66	25922	Strip Variants
101	118	25974	Strip Lists
108	182	27830	Tube Characters
108	222	27870	Font
110	54	28214	Wall Strip Table
110	158	28318	Sprite Table
111	218	28634	Sprite: Blank
111	220	28636	Strip Graphic Table
111	228	28644	Strip Graphic 1
111	249	28665	Strip Graphic 2
112	14	28686	Strip Graphic 3
112	23	28695	Sprite: Logo Piece 1
112	233	28905	Sprite: Logo Piece 2
113	63	28991	Sprite: Logo Piece 3
113	161	29089	Sprite: Logo Piece 4
114	19	29203	Sprite: Logo Piece 5
114	101	29285	Sprite: Logo Piece 6
114	151	29335	Sprite: Speed Bonus
115	49	29489	Sprite: Ghost Frame 1
115	219	29659	Sprite: Ghost Frame 2
116	175	29871	Sprite: Ghost Frame 3
117	113	30065	Inventory Item Icons
118	145	30353	Sprite: Creature 2 Frame 3
119	53	30517	Sprite: Creature 2 Frame 4
119	223	30687	Sprite: Creature 3 Frame 3
120	125	30845	Sprite: Creature 3 Frame 4
121	27	31003	Sprite: Creature 4 Frame 3
121	197	31173	Sprite: Creature 4 Frame 4
122	111	31343	Status Panel Characters
123	47	31535	Sprite: Burst 1
123	113	31601	Sprite: Burst 2
123	179	31667	Sprite: Burst 3
123	245	31733	Sprite: Burst 4
124	55	31799	Sprite: Health Bonus
124	121	31865	Sprite: Monster 3 Frame 2
125	65	32065	Sprite: Monster 1 Frame 1
126	69	32325	Sprite: Monster 1 Frame 2
127	73	32585	Sprite: Item 2
127	165	32677	Sprite: Item 1
128	25	32793	Sprite: Item 4
128	117	32885	Sprite: Item 3
129	13	33037	Sprite: Monster 4 Frame 1
129	219	33243	Sprite: Creature 1 Frame 3
130	157	33437	Sprite: Creature 1 Frame 4
131	89	33625	Sprite: Shot 1 Frame 1
131	143	33679	Sprite: Shot 1 Frame 2
131	197	33733	Sprite: Shot 1 Frame 3
131	251	33787	Sprite: Shot 1 Frame 4
132	49	33841	Sprite: Shot 2 Frame 1
132	115	33907	Sprite: Shot 2 Frame 2
132	181	33973	Sprite: Shot 2 Frame 3
132	247	34039	Sprite: Shot 3 Frame 1
133	57	34105	Sprite: Shot 3 Frame 2
133	123	34171	Sprite: Shot 3 Frame 3
133	189	34237	Sprite: Shot 3 Frame 4
133	255	34303	Sprite: Shot 4 Frame 1
134	65	34369	Sprite: Shot 4 Frame 2
134	131	34435	Sprite: Shot 4 Frame 3
134	197	34501	Sprite: Shot 4 Frame 4
135	7	34567	Sprite: Monster 4 Frame 2
135	225	34785	Sprite: Monster 4 Frame 3
136	187	35003	Sprite: Monster 4 Frame 4
137	149	35221	Sprite: Monster 3 Frame 1
138	99	35427	Sprite: Spore 3 Frame 1
138	221	35549	Sprite: Spore 3 Frame 2
139	87	35671	Sprite: Spore 3 Frame 3
139	203	35787	Sprite: Spore 1 Frame 1
140	51	35891	Sprite: Spore 1 Frame 2
140	155	35995	Sprite: Spore 1 Frame 3
141	3	36099	Sprite: Spore 4 Frame 2
141	141	36237	Sprite: Spore 4 Frame 3
142	7	36359	Sprite: Spore 4 Frame 1
142	145	36497	Sprite: Spore 2 Frame 1
143	5	36613	Sprite: Spore 2 Frame 2
143	127	36735	Sprite: Spore 2 Frame 3
143	255	36863	Sprite: Creature 4 Frame 1
144	169	37033	Sprite: Creature 4 Frame 2
145	83	37203	Sprite: Creature 3 Frame 2
145	241	37361	Sprite: Creature 3 Frame 1
146	143	37519	Sprite: Creature 2 Frame 2
147	63	37695	Sprite: Creature 2 Frame 1
147	239	37871	Sprite: Creature 1 Frame 1
148	171	38059	Sprite: Creature 1 Frame 2
149	103	38247	Sprite: Monster 2 Frame 1
150	53	38453	Sprite: Monster 2 Frame 2
151	3	38659	Sprite: Player Body A Frame 2
151	149	38805	Sprite: Player Body B Frame 3
152	45	38957	Sprite: Player Body A Frame 5
152	191	39103	Sprite: Player Body A Frame 1
153	81	39249	Sprite: Player Body A Frame 4
153	227	39395	Sprite: Player Body A Frame 3
154	117	39541	Sprite: Player Body B Frame 4
155	13	39693	Sprite: Player Body B Frame 1
155	165	39845	Sprite: Player Body B Frame 2
156	61	39997	Sprite: Player Body A Frame 6
156	213	40149	Sprite: Player Body B Frame 5
157	109	40301	Sprite: Player Body B Frame 6
158	5	40453	Sprite: Player Bumping Body B
158	157	40605	Sprite: Player Bumping Body A
159	47	40751	Sprite: Player Legs A Frame 4
159	145	40849	Sprite: Player Legs A Frame 3
159	243	40947	Sprite: Player Legs A Frame 2
160	85	41045	Sprite: Player Legs A Frame 1
160	183	41143	Sprite: Player Legs B Frame 4
161	31	41247	Sprite: Player Legs B Frame 3
161	135	41351	Sprite: Player Legs B Frame 2
161	239	41455	Sprite: Player Legs B Frame 1
162	87	41559	Wall Strip 00
162	200	41672	Wall Strip 01
163	57	41785	Wall Strip 02
163	170	41898	Wall Strip 03
164	27	42011	Wall Strip 2F
164	156	42140	Wall Strip 30
165	29	42269	Wall Strip 04
165	142	42382	Wall Strip 05
166	15	42511	Wall Strip 06
166	144	42640	Wall Strip 07
167	17	42769	Wall Strip 08
167	146	42898	Wall Strip 09
168	19	43027	Wall Strip 0A
168	148	43156	Wall Strip 0B
169	21	43285	Wall Strip 0C
169	150	43414	Wall Strip 0D
170	23	43543	Wall Strip 0E
170	152	43672	Wall Strip 0F
171	25	43801	Wall Strip 10
171	154	43930	Wall Strip 11
172	27	44059	Wall Strip 12
172	156	44188	Wall Strip 13
173	29	44317	Wall Strip 14
173	158	44446	Wall Strip 16
174	15	44559	Wall Strip 15
174	144	44688	Wall Strip 18
175	17	44817	Wall Strip 19
175	146	44946	Wall Strip 32
176	19	45075	Wall Strip 33
176	148	45204	Wall Strip 17
177	21	45333	Wall Strip 1A
177	150	45462	Wall Strip 1B
178	23	45591	Wall Strip 1C
178	152	45720	Wall Strip 1E
179	25	45849	Wall Strip 1D
179	154	45978	Wall Strip 1F
180	11	46091	Wall Strip 20
180	140	46220	Wall Strip 21
180	253	46333	Wall Strip 22
181	110	46446	Wall Strip 23
181	223	46559	Wall Strip 24
182	80	46672	Wall Strip 25
182	193	46785	Wall Strip 26
183	50	46898	Wall Strip 27
183	163	47011	Wall Strip 28
184	20	47124	Wall Strip 29
184	133	47237	Wall Strip 2B
185	6	47366	Wall Strip 2C
185	135	47495	Wall Strip 2D
186	8	47624	Wall Strip 2E
186	137	47753	Wall Strip 31
187	10	47882	Border Characters
187	170	48042	Random Seed
187	172	48044	Font Pointer
187	174	48046	Saved Stack Pointer
187	176	48048	Game Options
187	177	48049	Previous Game Options
187	178	48050	Frame Counter
187	180	48052	Cell Column
187	181	48053	Cell Row
187	182	48054	Screen X Position
187	184	48056	Screen Y Position
187	186	48058	View Rotated Flag
187	187	48059	Drawn Columns
187	189	48061	Key Held Flag
187	190	48062	Maximum Speed
187	191	48063	Menu Frame Drawn Flag
187	192	48064	Wall Tile
187	193	48065	Tune Played Flag
187	194	48066	Characters To Draw
187	195	48067	Rows To Draw
187	196	48068	Chosen Object Position
187	198	48070	Compared Object Position
187	200	48072	Throw Timer
187	201	48073	Score
187	205	48077	Lives
187	206	48078	Items Left
187	242	48114	Mirror Flag
187	243	48115	Health
187	244	48116	Last Shot Used
187	245	48117	Speed Bonus Timer
187	246	48118	Last Cell Visited
187	248	48120	Step Counter
187	249	48121	Note Counter
187	250	48122	Sound Number
187	251	48123	Flash Colour
187	252	48124	Previous Flash Colour
187	253	48125	Percentage Hundreds
187	254	48126	Percentage Tens And Units
187	255	48127	Game Finished Flag
188	0	48128	Ending Attribute
188	1	48129	Controls
188	2	48130	Materialise Timer
188	3	48131	Inventory
188	14	48142	Visited Cells
188	142	48270	Object Table
189	254	48638	Start Game
190	223	48863	Calculate Percentage Complete
191	54	48950	Print Percentage
191	72	48968	Mark Cell Visited
191	149	49045	Spawn Ghost
191	241	49137	Update Ghost
192	44	49196	Set Velocity Towards Player
192	87	49239	Clear Short-Lived Objects
192	101	49253	Player Health Colours
192	105	49257	Check Object Close To Player
192	131	49283	Update Creature
192	209	49361	Hit Outcome Table
192	217	49369	Remove Creature
192	222	49374	Destroy Creature
192	237	49389	Change Creature
193	1	49409	Split Creature
193	82	49490	Turn Creature Into Spore
193	100	49508	Update Ball
193	156	49564	Find Nearest Monster
193	185	49593	Get Distance To Monster
193	219	49627	Build Random Table
193	253	49661	Draw Monster Icons
194	138	49802	Screen Address One Pixel Above
194	154	49818	Draw Compass Text
194	196	49860	Compass Text Characters
194	200	49864	Draw Compass Icon
194	223	49887	Compass Icon Characters
194	231	49895	Messaging: Score Text
194	237	49901	Add To Score
194	255	49919	Print Score
195	20	49940	Print BCD Number
195	50	49970	Play Ghost Sound
195	77	49997	Sound Pitch Tables
195	157	50077	Play Ending Ghost Sound
195	170	50090	Play Bump Sound
195	189	50109	Play Sound Effect
195	216	50136	Sound Effect Table
195	224	50144	Sound Effect Notes
195	244	50164	Play Sweep Sound
196	0	50176	Play Movement Sound
196	53	50229	Play Random Sound
196	85	50261	Play Object Sound
196	99	50275	Play Materialise Sound
196	113	50289	Play Square Wave
196	129	50305	Pick Up Special Item
196	137	50313	Pick Up Item
196	220	50396	Colour Inventory Items
197	47	50479	Item Colours
197	56	50488	Check Shot Hits Object
197	84	50516	Check Overlap With Next Object
197	95	50527	Check Player Collision
197	180	50612	Increment Frame Counter
197	187	50619	Update Random Number
197	206	50638	Spawn Item
198	61	50749	Play Music Once
198	86	50774	Play Music
198	97	50785	Play Note
198	185	50873	Note Table
199	112	51056	Tune: Game Selection Menu
199	244	51188	Tune: Menu Selection
199	248	51192	Tune: Start Game
200	3	51203	Tune: Game Over
200	26	51226	Tune: Game Complete
200	57	51257	Tune: Life Lost
200	63	51263	Draw Inventory Tube
200	137	51337	Colour Attribute Column
200	152	51352	Colour Player Attributes
200	178	51378	Fill Attribute Rectangle
200	202	51402	Game Selection Menu
201	73	51529	Flash Menu Options
201	98	51554	Menu Line Attributes
201	106	51562	Menu Line Positions
201	122	51578	Messaging: Menu Text
201	239	51695	Print String
202	27	51739	Set Flashing Attribute
202	43	51755	Display Menu
202	85	51797	Draw Playing Area Border
202	157	51869	Draw Frame
202	229	51941	Border Block Characters
202	253	51965	Draw Horizontal Edge
203	9	51977	Draw Vertical Edge
203	25	51993	Print Character
203	62	52030	Print Character Block
203	91	52059	Print Character With Attribute
203	113	52081	Move Down Row
203	123	52091	Choose Start Position
203	172	52140	Check Player Dead
203	197	52165	Start New Life
204	29	52253	Draw Life Icon
204	46	52270	Life Icon Characters
204	54	52278	Player Template
204	86	52310	Game Over
204	228	52452	Ending Pieces
205	2	52482	Remove All Objects
205	16	52496	Update Logo Piece
205	88	52568	Update Ending Ghost
205	158	52638	Limit Distance
205	175	52655	Messaging: Game Over Text
205	223	52703	Pause For Half A Second
205	232	52712	Spawn Ball
206	121	52857	Ball Template
206	137	52873	Update Spore
206	187	52923	Hurt Player
206	196	52932	Kill Player
206	229	52965	Burst Spore And Shot
206	248	52984	Next Sprite Number
207	8	53000	Draw View
207	165	53157	Draw Cell And Objects
207	175	53167	Find Objects In Cell
207	242	53234	Draw Objects In List
208	160	53408	Object Order Table
208	196	53444	Keep Object
208	197	53445	Choose Other Object
208	208	53456	Compare Object Depths
209	93	53597	Object List
209	125	53629	Convert Cell
209	142	53646	Convert Position
209	157	53661	Draw Cell
209	250	53754	Draw Strips Left To Right
210	45	53805	Step Down Right
210	50	53810	Step Down Right In List
210	75	53835	Step Up Right In List
210	80	53840	Step Up Right
210	85	53845	Step Down Left In List
210	110	53870	Step Up Left In List
210	115	53875	Draw Strip
210	162	53922	Clip Edge Strip Top
210	178	53938	Draw Strip Graphic
211	86	54102	Colour Wall Column
211	114	54130	Draw Cell With Walls
211	194	54210	Draw Wall Strips
212	21	54293	Clip Wall Strip Top
212	37	54309	Draw Wall Strip
212	239	54511	Wall Strip Masks
212	243	54515	Project Object
213	8	54536	Project Cell
213	100	54628	Get Map Cell
213	137	54665	Get Table Entry
213	147	54675	Jump To Table Routine
213	153	54681	Object Handler Table
214	213	54997	Ignore Object
214	214	54998	Create Fragments
215	10	55050	Update Fragment
215	39	55079	Update Speed Bonus
215	76	55116	Update Health Bonus
215	108	55148	Spawn Bonus
215	216	55256	Update Burst
215	237	55277	Update Shot
216	12	55308	Update Thrown Item
216	71	55367	Update Destroyed Monster
216	101	55397	Check Monsters Defeated
216	142	55438	Place Items
216	215	55511	Item Template
216	231	55527	Place Monsters
217	50	55602	Monster Template
217	66	55618	Update Monster Item
217	79	55631	Update Monster
217	120	55672	Set Sprite From Direction
217	163	55715	Update Village Item
217	235	55787	Update Bumping Body
218	0	55808	Update Player Body
218	122	55930	Update Player Legs
218	183	55991	Throw Item
219	104	56168	Check Rotate Key
219	137	56201	Choose Direction
220	20	56340	Set Facing Flags
220	67	56387	Swap Controls
220	96	56416	Move Player
220	113	56433	Slow Down Routines
220	121	56441	Slow Player Down
220	168	56488	Speed Player Up
220	220	56540	Player Sprite Table
220	224	56544	Set Velocity From Speed
221	1	56577	Move Object
221	40	56616	Update Direction
221	106	56682	Turn Routines
221	114	56690	Turn Towards Player
221	153	56729	Find Direction To Player
221	207	56783	Choose Random Velocity
221	252	56828	Choose Velocity
222	13	56845	Set Direction From Velocity
222	89	56921	Test Move
222	106	56938	Test Move Routines
222	114	56946	Test Move Up
222	211	57043	Test Move Right
223	52	57140	Test Move Down
223	151	57239	Test Move Left
223	250	57338	Test Cell Moving Up
224	11	57355	Test Cell Moving Down
224	19	57363	Test Cell Moving Right
224	32	57376	Test Cell Moving Left
224	40	57384	Find Position In Cell
224	81	57425	Find Map Tile
224	99	57443	Check Walls Vertical First
224	135	57479	Check Overlap Along X
224	160	57504	Check Walls Horizontal First
224	196	57540	Check Overlap Along Y
224	221	57565	Negate HL
224	229	57573	Sign Extend A
224	238	57582	Multiply A By DE
224	251	57595	Build Shift Tables
225	72	57672	Copy Pixels To Screen
225	173	57773	Copy Attributes To Screen
226	0	57856	Copy Buffers To Screen
226	29	57885	Fill Buffer
226	57	57913	Read Keyboard Port
226	65	57921	Read Controls
226	80	57936	Read Interface 2 Joystick
226	137	57993	Read Kempston Joystick
226	174	58030	Read Cursor Joystick
226	218	58074	Read Keyboard
227	28	58140	Read View Key
227	44	58156	Pause Game
227	83	58195	Flip Sprite
227	214	58326	Mirror Sprite
227	217	58329	Draw Object
227	255	58367	Draw Sprite
228	159	58527	Draw Aligned Columns
228	201	58569	Draw Sprite Row
228	205	58573	Draw Shifted Columns
229	40	58664	End Sprite Row
229	58	58682	Calculate Buffer Address
229	86	58710	Calculate Screen Address
229	121	58745	Calculate Attribute Address
229	150	58774	Add A To HL
229	157	58781	Clear Screen
229	168	58792	Clear Pixels
229	176	58800	Clear Attributes
229	186	58810	Fill Memory
229	196	58820	Pixel Buffer
240	68	61508	Attribute Buffer
241	148	61844	Unused
242	0	61952	Reversed Shift Tables
248	0	63488	Unused
249	0	63744	Reverse Bits Table
250	0	64000	Shift Tables