Memory map

Page	Byte	Address	Description
64	0	4000	Loading screen
91	128	5B80	Decryption Routine
92	176	5CB0	Indirect Jump
94	0	5E00	Game Entry Point
94	4	5E04	Map
98	4	6204	View Patterns
98	164	62A4	Strip List Table
99	52	6334	Rectangle List Table
99	124	637C	Rectangle Lists
101	66	6542	Strip Variants
101	118	6576	Strip Lists
108	182	6CB6	Tube Characters
108	222	6CDE	Font
110	54	6E36	Wall Strip Table
110	158	6E9E	Sprite Table
111	218	6FDA	Sprite: Blank
111	220	6FDC	Strip Graphic Table
111	228	6FE4	Strip Graphic 1
111	249	6FF9	Strip Graphic 2
112	14	700E	Strip Graphic 3
112	23	7017	Sprite: Logo Piece 1
112	233	70E9	Sprite: Logo Piece 2
113	63	713F	Sprite: Logo Piece 3
113	161	71A1	Sprite: Logo Piece 4
114	19	7213	Sprite: Logo Piece 5
114	101	7265	Sprite: Logo Piece 6
114	151	7297	Sprite: Speed Bonus
115	49	7331	Sprite: Ghost Frame 1
115	219	73DB	Sprite: Ghost Frame 2
116	175	74AF	Sprite: Ghost Frame 3
117	113	7571	Inventory Item Icons
118	145	7691	Sprite: Creature 2 Frame 3
119	53	7735	Sprite: Creature 2 Frame 4
119	223	77DF	Sprite: Creature 3 Frame 3
120	125	787D	Sprite: Creature 3 Frame 4
121	27	791B	Sprite: Creature 4 Frame 3
121	197	79C5	Sprite: Creature 4 Frame 4
122	111	7A6F	Status Panel Characters
123	47	7B2F	Sprite: Burst 1
123	113	7B71	Sprite: Burst 2
123	179	7BB3	Sprite: Burst 3
123	245	7BF5	Sprite: Burst 4
124	55	7C37	Sprite: Health Bonus
124	121	7C79	Sprite: Monster 3 Frame 2
125	65	7D41	Sprite: Monster 1 Frame 1
126	69	7E45	Sprite: Monster 1 Frame 2
127	73	7F49	Sprite: Item 2
127	165	7FA5	Sprite: Item 1
128	25	8019	Sprite: Item 4
128	117	8075	Sprite: Item 3
129	13	810D	Sprite: Monster 4 Frame 1
129	219	81DB	Sprite: Creature 1 Frame 3
130	157	829D	Sprite: Creature 1 Frame 4
131	89	8359	Sprite: Shot 1 Frame 1
131	143	838F	Sprite: Shot 1 Frame 2
131	197	83C5	Sprite: Shot 1 Frame 3
131	251	83FB	Sprite: Shot 1 Frame 4
132	49	8431	Sprite: Shot 2 Frame 1
132	115	8473	Sprite: Shot 2 Frame 2
132	181	84B5	Sprite: Shot 2 Frame 3
132	247	84F7	Sprite: Shot 3 Frame 1
133	57	8539	Sprite: Shot 3 Frame 2
133	123	857B	Sprite: Shot 3 Frame 3
133	189	85BD	Sprite: Shot 3 Frame 4
133	255	85FF	Sprite: Shot 4 Frame 1
134	65	8641	Sprite: Shot 4 Frame 2
134	131	8683	Sprite: Shot 4 Frame 3
134	197	86C5	Sprite: Shot 4 Frame 4
135	7	8707	Sprite: Monster 4 Frame 2
135	225	87E1	Sprite: Monster 4 Frame 3
136	187	88BB	Sprite: Monster 4 Frame 4
137	149	8995	Sprite: Monster 3 Frame 1
138	99	8A63	Sprite: Spore 3 Frame 1
138	221	8ADD	Sprite: Spore 3 Frame 2
139	87	8B57	Sprite: Spore 3 Frame 3
139	203	8BCB	Sprite: Spore 1 Frame 1
140	51	8C33	Sprite: Spore 1 Frame 2
140	155	8C9B	Sprite: Spore 1 Frame 3
141	3	8D03	Sprite: Spore 4 Frame 2
141	141	8D8D	Sprite: Spore 4 Frame 3
142	7	8E07	Sprite: Spore 4 Frame 1
142	145	8E91	Sprite: Spore 2 Frame 1
143	5	8F05	Sprite: Spore 2 Frame 2
143	127	8F7F	Sprite: Spore 2 Frame 3
143	255	8FFF	Sprite: Creature 4 Frame 1
144	169	90A9	Sprite: Creature 4 Frame 2
145	83	9153	Sprite: Creature 3 Frame 2
145	241	91F1	Sprite: Creature 3 Frame 1
146	143	928F	Sprite: Creature 2 Frame 2
147	63	933F	Sprite: Creature 2 Frame 1
147	239	93EF	Sprite: Creature 1 Frame 1
148	171	94AB	Sprite: Creature 1 Frame 2
149	103	9567	Sprite: Monster 2 Frame 1
150	53	9635	Sprite: Monster 2 Frame 2
151	3	9703	Sprite: Player Body A Frame 2
151	149	9795	Sprite: Player Body B Frame 3
152	45	982D	Sprite: Player Body A Frame 5
152	191	98BF	Sprite: Player Body A Frame 1
153	81	9951	Sprite: Player Body A Frame 4
153	227	99E3	Sprite: Player Body A Frame 3
154	117	9A75	Sprite: Player Body B Frame 4
155	13	9B0D	Sprite: Player Body B Frame 1
155	165	9BA5	Sprite: Player Body B Frame 2
156	61	9C3D	Sprite: Player Body A Frame 6
156	213	9CD5	Sprite: Player Body B Frame 5
157	109	9D6D	Sprite: Player Body B Frame 6
158	5	9E05	Sprite: Player Bumping Body B
158	157	9E9D	Sprite: Player Bumping Body A
159	47	9F2F	Sprite: Player Legs A Frame 4
159	145	9F91	Sprite: Player Legs A Frame 3
159	243	9FF3	Sprite: Player Legs A Frame 2
160	85	A055	Sprite: Player Legs A Frame 1
160	183	A0B7	Sprite: Player Legs B Frame 4
161	31	A11F	Sprite: Player Legs B Frame 3
161	135	A187	Sprite: Player Legs B Frame 2
161	239	A1EF	Sprite: Player Legs B Frame 1
162	87	A257	Wall Strip 00
162	200	A2C8	Wall Strip 01
163	57	A339	Wall Strip 02
163	170	A3AA	Wall Strip 03
164	27	A41B	Wall Strip 2F
164	156	A49C	Wall Strip 30
165	29	A51D	Wall Strip 04
165	142	A58E	Wall Strip 05
166	15	A60F	Wall Strip 06
166	144	A690	Wall Strip 07
167	17	A711	Wall Strip 08
167	146	A792	Wall Strip 09
168	19	A813	Wall Strip 0A
168	148	A894	Wall Strip 0B
169	21	A915	Wall Strip 0C
169	150	A996	Wall Strip 0D
170	23	AA17	Wall Strip 0E
170	152	AA98	Wall Strip 0F
171	25	AB19	Wall Strip 10
171	154	AB9A	Wall Strip 11
172	27	AC1B	Wall Strip 12
172	156	AC9C	Wall Strip 13
173	29	AD1D	Wall Strip 14
173	158	AD9E	Wall Strip 16
174	15	AE0F	Wall Strip 15
174	144	AE90	Wall Strip 18
175	17	AF11	Wall Strip 19
175	146	AF92	Wall Strip 32
176	19	B013	Wall Strip 33
176	148	B094	Wall Strip 17
177	21	B115	Wall Strip 1A
177	150	B196	Wall Strip 1B
178	23	B217	Wall Strip 1C
178	152	B298	Wall Strip 1E
179	25	B319	Wall Strip 1D
179	154	B39A	Wall Strip 1F
180	11	B40B	Wall Strip 20
180	140	B48C	Wall Strip 21
180	253	B4FD	Wall Strip 22
181	110	B56E	Wall Strip 23
181	223	B5DF	Wall Strip 24
182	80	B650	Wall Strip 25
182	193	B6C1	Wall Strip 26
183	50	B732	Wall Strip 27
183	163	B7A3	Wall Strip 28
184	20	B814	Wall Strip 29
184	133	B885	Wall Strip 2B
185	6	B906	Wall Strip 2C
185	135	B987	Wall Strip 2D
186	8	BA08	Wall Strip 2E
186	137	BA89	Wall Strip 31
187	10	BB0A	Border Characters
187	170	BBAA	Random Seed
187	172	BBAC	Font Pointer
187	174	BBAE	Saved Stack Pointer
187	176	BBB0	Game Options
187	177	BBB1	Previous Game Options
187	178	BBB2	Frame Counter
187	180	BBB4	Cell Column
187	181	BBB5	Cell Row
187	182	BBB6	Screen X Position
187	184	BBB8	Screen Y Position
187	186	BBBA	View Rotated Flag
187	187	BBBB	Drawn Columns
187	189	BBBD	Key Held Flag
187	190	BBBE	Maximum Speed
187	191	BBBF	Menu Frame Drawn Flag
187	192	BBC0	Wall Tile
187	193	BBC1	Tune Played Flag
187	194	BBC2	Characters To Draw
187	195	BBC3	Rows To Draw
187	196	BBC4	Chosen Object Position
187	198	BBC6	Compared Object Position
187	200	BBC8	Throw Timer
187	201	BBC9	Score
187	205	BBCD	Lives
187	206	BBCE	Items Left
187	242	BBF2	Mirror Flag
187	243	BBF3	Health
187	244	BBF4	Last Shot Used
187	245	BBF5	Speed Bonus Timer
187	246	BBF6	Last Cell Visited
187	248	BBF8	Step Counter
187	249	BBF9	Note Counter
187	250	BBFA	Sound Number
187	251	BBFB	Flash Colour
187	252	BBFC	Previous Flash Colour
187	253	BBFD	Percentage Hundreds
187	254	BBFE	Percentage Tens And Units
187	255	BBFF	Game Finished Flag
188	0	BC00	Ending Attribute
188	1	BC01	Controls
188	2	BC02	Materialise Timer
188	3	BC03	Inventory
188	14	BC0E	Visited Cells
188	142	BC8E	Object Table
189	254	BDFE	Start Game
190	223	BEDF	Calculate Percentage Complete
191	54	BF36	Print Percentage
191	72	BF48	Mark Cell Visited
191	149	BF95	Spawn Ghost
191	241	BFF1	Update Ghost
192	44	C02C	Set Velocity Towards Player
192	87	C057	Clear Short-Lived Objects
192	101	C065	Player Health Colours
192	105	C069	Check Object Close To Player
192	131	C083	Update Creature
192	209	C0D1	Hit Outcome Table
192	217	C0D9	Remove Creature
192	222	C0DE	Destroy Creature
192	237	C0ED	Change Creature
193	1	C101	Split Creature
193	82	C152	Turn Creature Into Spore
193	100	C164	Update Ball
193	156	C19C	Find Nearest Monster
193	185	C1B9	Get Distance To Monster
193	219	C1DB	Build Random Table
193	253	C1FD	Draw Monster Icons
194	138	C28A	Screen Address One Pixel Above
194	154	C29A	Draw Compass Text
194	196	C2C4	Compass Text Characters
194	200	C2C8	Draw Compass Icon
194	223	C2DF	Compass Icon Characters
194	231	C2E7	Messaging: Score Text
194	237	C2ED	Add To Score
194	255	C2FF	Print Score
195	20	C314	Print BCD Number
195	50	C332	Play Ghost Sound
195	77	C34D	Sound Pitch Tables
195	157	C39D	Play Ending Ghost Sound
195	170	C3AA	Play Bump Sound
195	189	C3BD	Play Sound Effect
195	216	C3D8	Sound Effect Table
195	224	C3E0	Sound Effect Notes
195	244	C3F4	Play Sweep Sound
196	0	C400	Play Movement Sound
196	53	C435	Play Random Sound
196	85	C455	Play Object Sound
196	99	C463	Play Materialise Sound
196	113	C471	Play Square Wave
196	129	C481	Pick Up Special Item
196	137	C489	Pick Up Item
196	220	C4DC	Colour Inventory Items
197	47	C52F	Item Colours
197	56	C538	Check Shot Hits Object
197	84	C554	Check Overlap With Next Object
197	95	C55F	Check Player Collision
197	180	C5B4	Increment Frame Counter
197	187	C5BB	Update Random Number
197	206	C5CE	Spawn Item
198	61	C63D	Play Music Once
198	86	C656	Play Music
198	97	C661	Play Note
198	185	C6B9	Note Table
199	112	C770	Tune: Game Selection Menu
199	244	C7F4	Tune: Menu Selection
199	248	C7F8	Tune: Start Game
200	3	C803	Tune: Game Over
200	26	C81A	Tune: Game Complete
200	57	C839	Tune: Life Lost
200	63	C83F	Draw Inventory Tube
200	137	C889	Colour Attribute Column
200	152	C898	Colour Player Attributes
200	178	C8B2	Fill Attribute Rectangle
200	202	C8CA	Game Selection Menu
201	73	C949	Flash Menu Options
201	98	C962	Menu Line Attributes
201	106	C96A	Menu Line Positions
201	122	C97A	Messaging: Menu Text
201	239	C9EF	Print String
202	27	CA1B	Set Flashing Attribute
202	43	CA2B	Display Menu
202	85	CA55	Draw Playing Area Border
202	157	CA9D	Draw Frame
202	229	CAE5	Border Block Characters
202	253	CAFD	Draw Horizontal Edge
203	9	CB09	Draw Vertical Edge
203	25	CB19	Print Character
203	62	CB3E	Print Character Block
203	91	CB5B	Print Character With Attribute
203	113	CB71	Move Down Row
203	123	CB7B	Choose Start Position
203	172	CBAC	Check Player Dead
203	197	CBC5	Start New Life
204	29	CC1D	Draw Life Icon
204	46	CC2E	Life Icon Characters
204	54	CC36	Player Template
204	86	CC56	Game Over
204	228	CCE4	Ending Pieces
205	2	CD02	Remove All Objects
205	16	CD10	Update Logo Piece
205	88	CD58	Update Ending Ghost
205	158	CD9E	Limit Distance
205	175	CDAF	Messaging: Game Over Text
205	223	CDDF	Pause For Half A Second
205	232	CDE8	Spawn Ball
206	121	CE79	Ball Template
206	137	CE89	Update Spore
206	187	CEBB	Hurt Player
206	196	CEC4	Kill Player
206	229	CEE5	Burst Spore And Shot
206	248	CEF8	Next Sprite Number
207	8	CF08	Draw View
207	165	CFA5	Draw Cell And Objects
207	175	CFAF	Find Objects In Cell
207	242	CFF2	Draw Objects In List
208	160	D0A0	Object Order Table
208	196	D0C4	Keep Object
208	197	D0C5	Choose Other Object
208	208	D0D0	Compare Object Depths
209	93	D15D	Object List
209	125	D17D	Convert Cell
209	142	D18E	Convert Position
209	157	D19D	Draw Cell
209	250	D1FA	Draw Strips Left To Right
210	45	D22D	Step Down Right
210	50	D232	Step Down Right In List
210	75	D24B	Step Up Right In List
210	80	D250	Step Up Right
210	85	D255	Step Down Left In List
210	110	D26E	Step Up Left In List
210	115	D273	Draw Strip
210	162	D2A2	Clip Edge Strip Top
210	178	D2B2	Draw Strip Graphic
211	86	D356	Colour Wall Column
211	114	D372	Draw Cell With Walls
211	194	D3C2	Draw Wall Strips
212	21	D415	Clip Wall Strip Top
212	37	D425	Draw Wall Strip
212	239	D4EF	Wall Strip Masks
212	243	D4F3	Project Object
213	8	D508	Project Cell
213	100	D564	Get Map Cell
213	137	D589	Get Table Entry
213	147	D593	Jump To Table Routine
213	153	D599	Object Handler Table
214	213	D6D5	Ignore Object
214	214	D6D6	Create Fragments
215	10	D70A	Update Fragment
215	39	D727	Update Speed Bonus
215	76	D74C	Update Health Bonus
215	108	D76C	Spawn Bonus
215	216	D7D8	Update Burst
215	237	D7ED	Update Shot
216	12	D80C	Update Thrown Item
216	71	D847	Update Destroyed Monster
216	101	D865	Check Monsters Defeated
216	142	D88E	Place Items
216	215	D8D7	Item Template
216	231	D8E7	Place Monsters
217	50	D932	Monster Template
217	66	D942	Update Monster Item
217	79	D94F	Update Monster
217	120	D978	Set Sprite From Direction
217	163	D9A3	Update Village Item
217	235	D9EB	Update Bumping Body
218	0	DA00	Update Player Body
218	122	DA7A	Update Player Legs
218	183	DAB7	Throw Item
219	104	DB68	Check Rotate Key
219	137	DB89	Choose Direction
220	20	DC14	Set Facing Flags
220	67	DC43	Swap Controls
220	96	DC60	Move Player
220	113	DC71	Slow Down Routines
220	121	DC79	Slow Player Down
220	168	DCA8	Speed Player Up
220	220	DCDC	Player Sprite Table
220	224	DCE0	Set Velocity From Speed
221	1	DD01	Move Object
221	40	DD28	Update Direction
221	106	DD6A	Turn Routines
221	114	DD72	Turn Towards Player
221	153	DD99	Find Direction To Player
221	207	DDCF	Choose Random Velocity
221	252	DDFC	Choose Velocity
222	13	DE0D	Set Direction From Velocity
222	89	DE59	Test Move
222	106	DE6A	Test Move Routines
222	114	DE72	Test Move Up
222	211	DED3	Test Move Right
223	52	DF34	Test Move Down
223	151	DF97	Test Move Left
223	250	DFFA	Test Cell Moving Up
224	11	E00B	Test Cell Moving Down
224	19	E013	Test Cell Moving Right
224	32	E020	Test Cell Moving Left
224	40	E028	Find Position In Cell
224	81	E051	Find Map Tile
224	99	E063	Check Walls Vertical First
224	135	E087	Check Overlap Along X
224	160	E0A0	Check Walls Horizontal First
224	196	E0C4	Check Overlap Along Y
224	221	E0DD	Negate HL
224	229	E0E5	Sign Extend A
224	238	E0EE	Multiply A By DE
224	251	E0FB	Build Shift Tables
225	72	E148	Copy Pixels To Screen
225	173	E1AD	Copy Attributes To Screen
226	0	E200	Copy Buffers To Screen
226	29	E21D	Fill Buffer
226	57	E239	Read Keyboard Port
226	65	E241	Read Controls
226	80	E250	Read Interface 2 Joystick
226	137	E289	Read Kempston Joystick
226	174	E2AE	Read Cursor Joystick
226	218	E2DA	Read Keyboard
227	28	E31C	Read View Key
227	44	E32C	Pause Game
227	83	E353	Flip Sprite
227	214	E3D6	Mirror Sprite
227	217	E3D9	Draw Object
227	255	E3FF	Draw Sprite
228	159	E49F	Draw Aligned Columns
228	201	E4C9	Draw Sprite Row
228	205	E4CD	Draw Shifted Columns
229	40	E528	End Sprite Row
229	58	E53A	Calculate Buffer Address
229	86	E556	Calculate Screen Address
229	121	E579	Calculate Attribute Address
229	150	E596	Add A To HL
229	157	E59D	Clear Screen
229	168	E5A8	Clear Pixels
229	176	E5B0	Clear Attributes
229	186	E5BA	Fill Memory
229	196	E5C4	Pixel Buffer
240	68	F044	Attribute Buffer
241	148	F194	Unused
242	0	F200	Reversed Shift Tables
248	0	F800	Unused
249	0	F900	Reverse Bits Table
250	0	FA00	Shift Tables