Memory map

Page	Byte	Address	Description
64	0	4000	Loading screen
91	0	5B00	Random Seed 1
91	1	5B01	Unused
91	2	5B02	Frame Counter
91	4	5B04	Control Method
91	5	5B05	Random Seed 2
91	6	5B06	Previous Control Method
91	7	5B07	Unused
91	8	5B08	Wiped Area Count
91	9	5B09	Saved Stack Pointer
91	11	5B0B	Room Size X
91	12	5B0C	Room Size Y
91	13	5B0D	Room Colour
91	14	5B0E	Floor Height
91	15	5B0F	Unused
91	18	5B12	Room Flags
91	19	5B13	Pickup Drop Pressed Flag
91	20	5B14	Objects Carried Changed Flag
91	21	5B15	Controls Pressed
91	22	5B16	Text Attribute
91	23	5B17	Redraw Panel Flag
91	24	5B18	Border Drawn Flag
91	25	5B19	Position Offset
91	26	5B1A	Lives
91	27	5B1B	Saved Position
91	30	5B1E	Objects Drawn
91	31	5B1F	Unused
91	32	5B20	Object Type Table Address
91	34	5B22	Unused
91	35	5B23	Game Completed Flag
91	36	5B24	Game Over Flag
91	37	5B25	Block Scratch
91	38	5B26	Unused
91	39	5B27	Font Pointer
91	41	5B29	Unused
91	43	5B2B	Drawing List Pointer
91	45	5B2D	First List Position
91	47	5B2F	Second List Position
91	49	5B31	Tune Played Flag
91	50	5B32	Directional Key Pressed Flag
91	51	5B33	No Room To Drop Flag
91	52	5B34	Chamber Address
91	54	5B36	Light Years Remaining
91	58	5B3A	Egg Top Flag
91	59	5B3B	Egg Top Disabled Flag
91	60	5B3C	Cryonauts Lost
91	62	5B3E	Chambers Found Activated
91	63	5B3F	Chambers Not Activated
91	64	5B40	Chambers Activated
91	65	5B41	Game Over Scene Stage
91	66	5B42	Remote Control Command
91	67	5B43	Land Mine Flag
91	68	5B44	Unused
91	88	5B58	Rooms Visited Bitmap
91	120	5B78	Objects Carried Header
91	124	5B7C	Objects Carried
91	136	5B88	Player Bottom Object
91	168	5BA8	Player Top Object
91	200	5BC8	Special Object Slots
92	8	5C08	Room Objects
98	136	6288	Unused
99	0	6300	Game Entry Point
99	8	6308	Font
100	96	6460	Room Sizes
100	105	6469	Room Data
115	200	73C8	Object Types
116	8	7408	Second Object Types
116	24	7418	Object Templates
117	25	7519	Block Types
117	53	7535	Block Templates
118	227	76E3	Special Objects
120	39	7827	Sprite Pointers
121	47	792F	Sprite: Null Sprite
121	49	7931	Sprite: Panel Decoration
121	171	79AB	Sprite: Pot Of Oil
123	11	7B0B	Sprite: Land Mine
123	197	7BC5	Sprite: Spiked Dome
124	93	7C5D	Sprite: Remote Control Robot
126	165	7EA5	Sprite: Remote Control Arrow
128	121	8079	Sprite: Clockwork Mouse
130	241	82F1	Sprite: Chasing Dome
132	93	845D	Sprite: Hammer
132	223	84DF	Sprite: Boxing Glove
133	113	8571	Sprite: Alarm
133	181	85B5	Sprite: Hook
134	97	8661	Sprite: Robot Arm
134	197	86C5	Sprite: Panel Bracket
135	75	874B	Sprite: Robot Mouse Base
135	173	87AD	Sprite: Broken Egg
136	179	88B3	Sprite: Unused Ramp
137	125	897D	Sprite: Cryonaut
138	63	8A3F	Sprite: Robot Mouse Frame 1
138	215	8AD7	Sprite: Blocks
141	133	8D85	Sprite: Robot Mouse Frame 2
142	29	8E1D	Sprite: Deadly Tubes
142	231	8EE7	Sprite: Arch
145	3	9103	Sprite: Wall
147	39	9327	Sprite: Border
148	99	9463	Sprite: Panel
149	11	950B	Sprite: Deadly Pyramid
149	205	95CD	Sprite: Extra Life
150	19	9613	Sprite: Robot Turning
153	63	993F	Sprite: Robot Walking
159	183	9FB7	Sprite: Wall Corner
160	25	A019	Sprite: Sparkle
163	85	A355	Sprite: Valve Socket
164	31	A41F	Sprite: Valve
166	49	A631	Start Game
166	71	A647	Restart Game
166	80	A650	Initialise Game
166	136	A688	Start Life
166	139	A68B	Run Game
167	73	A749	Update Panel
167	151	A797	Messaging: Light Years Caption
167	163	A7A3	Print Activated Chambers
167	174	A7AE	Colour Counter Box
167	202	A7CA	Counter Box Attributes
167	220	A7DC	Reset Wipe Flags
167	234	A7EA	Object Update Routines
168	240	A8F0	Do Nothing
168	241	A8F1	Check Protection
168	249	A8F9	Handle Land Mine
169	90	A95A	Handle Ending Robot Top
169	113	A971	Handle Ending Robot Bottom
169	177	A9B1	Handle Spiked Dome
169	199	A9C7	Handle Remote Control Robot
170	67	AA43	Remote Control Robot Speeds
170	77	AA4D	Handle Remote Control Block
170	99	AA63	Handle Remote Control Arrow
170	137	AA89	Handle Chasing Dome
170	161	AAA1	Handle Clockwork Mouse
171	31	AB1F	Face Direction Of Travel
171	97	AB61	Handle Attacking Tool
171	245	ABF5	Handle Alarm
172	33	AC21	Colour Cells
172	107	AC6B	Count Statistics
173	19	AD13	Handle Egg Top
173	84	AD54	Play Landing Sound Once
173	102	AD66	Update Light Years
173	176	ADB0	Print Counter Digit
173	201	ADC9	Decrement Light Years
173	229	ADE5	Roll Counter Digits
173	243	ADF3	Set Wipe And Draw Flags For Object
174	3	AE03	Find Object
174	23	AE17	Handle Valve Ghost
174	51	AE33	Handle Valve Ghost Sparkle
174	93	AE5D	Handle Placed Valve
174	104	AE68	Handle Socket
174	129	AE81	Test Valves In Play
174	138	AE8A	Calculate Pixel Position Of Other Object
174	150	AE96	Handle Cryonaut
174	153	AE99	Place Special Objects In Room
175	5	AF05	Update Special Objects
175	63	AF3F	Initialise Special Objects
175	121	AF79	Handle Valve
176	85	B055	Handle Mouse Second Part
176	107	B06B	Handle Circuit Mouse
176	173	B0AD	Turn Mouse One Way
176	221	B0DD	Turn Mouse Other Way
176	231	B0E7	Set Mouse Speed
177	8	B108	Mouse Speeds
177	16	B110	Handle Bouncing Mouse
177	101	B165	Set Speed Towards Player
177	133	B185	Toggle Sprite Number
177	140	B18C	Next Sprite Number
177	156	B19C	Handle Homing Sparkle
177	174	B1AE	Face Direction Of Movement
177	229	B1E5	Copy Previous Position
177	250	B1FA	Extend Object Downwards
178	11	B20B	Restore Object Height
178	28	B21C	Handle Block Moving North South
178	36	B224	Handle Block Moving East West
178	103	B267	Handle Conveyor North
178	122	B27A	Handle Conveyor East
178	128	B280	Handle Conveyor South
178	134	B286	Handle Conveyor West
178	140	B28C	Handle Collapsing Block
178	159	B29F	Handle Deadly Object
178	164	B2A4	Handle Broken Egg
178	167	B2A7	Set Deadly Flags
178	176	B2B0	Set Deadly Flags And Draw
178	182	B2B6	Handle Falling Block
178	217	B2D9	Save Position
178	235	B2EB	Compare Position
178	255	B2FF	Handle Fat Bottom Block
179	26	B31A	Handle Fat Top Block
179	31	B31F	Handle Rising Block
179	63	B33F	Handle Moving Block
179	154	B39A	Turn Into Sparkle
179	164	B3A4	Handle Sparkle
179	176	B3B0	Remove Object
179	184	B3B8	Retire Object
179	191	B3BF	Play Sound And Redraw
179	197	B3C5	Start Game Tune
179	215	B3D7	Robot Tune
179	247	B3F7	Game Over Tune
180	55	B437	Game Complete Tune
180	81	B451	Menu Tune
180	161	B4A1	Play Music Once
180	169	B4A9	Play Music Until Key Pressed
180	186	B4BA	Play Music
180	197	B4C5	Play Note
181	29	B51D	Music Note Table
181	212	B5D4	Play Pitch From Table
181	230	B5E6	Pitch Table
181	238	B5EE	Play Sparkle Sound
182	4	B604	Play Appearing Sound
182	25	B619	Play Bump Sound
182	44	B62C	Play Jump Sound
182	60	B63C	Play Sound From Height
182	63	B63F	Play Sound From Value
182	74	B64A	Play Sound From X Position
182	79	B64F	Play Sound From Y Position
182	84	B654	Play Sound From Position
182	95	B65F	Play Sound From Object Number
182	118	B676	Play Random Noise
182	144	B690	Play Moving Sound
182	169	B6A9	Moving Sound Lengths
182	177	B6B1	Play Low Beep
182	182	B6B6	Play Middle Beep
182	187	B6BB	Play High Beep
182	192	B6C0	Play Mouse Sound
182	206	B6CE	Play Footsteps Sound
182	212	B6D4	Play Footsteps Sound Every Frame
182	251	B6FB	Play Wave Sequence
183	2	B702	Play Square Wave
183	18	B712	Test Object Intersections
183	77	B74D	Test Object Solid
183	89	B759	Read Keyboard Port
183	97	B761	Game Over
183	245	B7F5	Messaging: Reprogramming
184	4	B804	Place Scene Objects
184	42	B82A	Game Over Scene
184	83	B853	Game Completed Scene
184	99	B863	Visit Room
184	129	B881	Count Rooms Visited
184	153	B899	Wait For Key Press
184	169	B8A9	Game Completed
184	208	B8D0	Game Completed Colours
184	215	B8D7	Game Completed Coordinates
184	229	B8E5	Messaging: Game Completed Text
185	79	B94F	Game Over Colours
185	86	B956	Game Over Coordinates
185	100	B964	Messaging: Game Over Text
185	221	B9DD	Rating Messages
185	237	B9ED	Messaging: Rating Text
186	54	BA36	Print Statistics
186	87	BA57	Print Lives
186	98	BA62	Print BCD Number
186	106	BA6A	Print BCD Bytes
186	116	BA74	Print Low Digit
186	126	BA7E	Game Selection Menu
186	251	BAFB	Flash Menu Options
187	20	BB14	Menu Colours
187	28	BB1C	Menu Coordinates
187	44	BB2C	Messaging: Menu Text
187	157	BB9D	Print Text Single Colour
187	177	BBB1	Print Text Standard Font
187	235	BBEB	Print Character
188	21	BC15	Set Flashing Attribute
188	37	BC25	Display Menu
188	49	BC31	Display Text List
188	86	BC56	Print Sprites
188	112	BC70	Handle Player Appearing
188	131	BC83	Handle Last Appearing Sparkle
188	157	BC9D	Display Objects Carried
189	52	BD34	Carried Object Colours
189	56	BD38	Sprite Object
189	88	BD58	Test Pickup Drop Key
189	107	BD6B	Handle Pickup And Drop
190	167	BEA7	Test Object Can Be Picked Up
190	175	BEAF	Test Near Object
190	214	BED6	Test Object Moving
190	224	BEE0	Handle Extra Life
191	47	BF2F	Copy Area To Screen
191	61	BF3D	Set Pixel Adjustments
191	131	BF83	Fill Window
191	171	BFAB	Set Wipe And Draw Flags
191	182	BFB6	Apply Gravity And Move
191	216	BFD8	Handle Far Arch
191	234	BFEA	Handle Near Arch
192	44	C02C	Nudge Player To Arch
192	72	C048	Arch Direction Table
192	80	C050	Nudge Player East West
192	105	C069	Nudge Player North South
192	130	C082	Flag Player Near Arch
192	153	C099	Test Near To
192	190	C0BE	Handle Player Legs
193	23	C117	Test Player In Room
193	60	C13C	Handle Turning
193	189	C1BD	Set Sprite From Table
193	210	C1D2	Turning Right Sprite Table
193	218	C1DA	Turning Left Sprite Table
193	226	C1E2	Handle Turning Legs
194	45	C22D	Turned Right Sprite Table
194	53	C235	Turned Left Sprite Table
194	61	C23D	Handle Jump
194	94	C25E	Handle Walking
194	150	C296	Move Player
194	238	C2EE	Clear Speed
194	246	C2F6	Set Player Speed
195	25	C319	Get Facing Direction
195	47	C32F	Player Movement Table
195	55	C337	Move Player West
195	64	C340	Move Player East
195	71	C347	Move Player North
195	80	C350	Move Player South
195	87	C357	Stop Object At Floor
195	109	C36D	Handle Room Exit
195	134	C386	Bring Speed Closer To Zero
195	143	C38F	Room Exit Table
195	151	C397	Leave Room To The West
195	240	C3F0	Leave Room To The East
196	11	C40B	Leave Room To The North
196	38	C426	Leave Room To The South
196	66	C442	Block Movement
196	151	C497	Block Movement In X
196	230	C4E6	Block Movement In Y
197	53	C535	Block Movement In Z
197	169	C5A9	Test Overlap In X
197	190	C5BE	Test Overlap In Y
197	211	C5D3	Test Overlap In Z
197	233	C5E9	Keep Object In Room In X
198	19	C613	Keep Object In Room In Y
198	61	C63D	Calculate Sprite Size
198	87	C657	Flag Overlapping Objects
198	228	C6E4	Handle Player Top
199	28	C71C	List Objects To Draw
199	69	C745	List Of Objects To Draw
199	133	C785	Draw Objects In Order
200	51	C833	Drawing Order Table
200	105	C869	Continue Comparing Objects
200	111	C86F	Compare With Other Object
200	171	C8AB	Replace Overlapping Special Object
200	213	C8D5	Draw Next Object
200	239	C8EF	List Of Replaced Objects
200	255	C8FF	Read Controls
201	27	C91B	Read Interface 2 Joystick
201	84	C954	Read Kempston Joystick
201	121	C979	Read Cursor Joystick
201	165	C9A5	Read Keyboard
202	7	CA07	Lose Life
202	29	CA1D	Copy Of Player
202	93	CA5D	Initial Player Data
202	109	CA6D	Initialise Player
202	158	CA9E	Start Rooms
202	162	CAA2	Build Room Objects
202	210	CAD2	Set Room Attributes
202	241	CAF1	Set Sprite Details
203	6	CB06	Print Table Sprite
203	15	CB0F	Draw Panel
203	90	CB5A	Panel Sprites
203	138	CB8A	Print Border
203	195	CBC3	Border Sprites
203	227	CBE3	Set Border Attributes
204	1	CC01	Place Player At Door
204	109	CC6D	Find Door Height
204	150	CC96	Find Object Address
204	167	CCA7	Retrieve Room
204	208	CCD0	Clear Remaining Objects
204	222	CCDE	Make Room Objects
206	6	CE06	Add A To HL
206	13	CE0D	Multiply A By DE
206	28	CE1C	Clear Bytes
206	34	CE22	Pause Game
206	78	CE4E	Clear Objects
206	86	CE56	Fill Memory
206	96	CE60	Clear Screen Bitmap
206	104	CE68	Clear Attributes
206	115	CE73	Clear Screen
206	123	CE7B	Clear Screen Buffer
206	133	CE85	Update Screen
206	171	CEAB	Draw Changed Objects
207	133	CF85	Copy Block To Screen
207	167	CFA7	Build Lookup Tables
207	210	CFD2	Calculate Pixel Coordinates
207	254	CFFE	Get Sprite Address
208	19	D013	Draw Object
208	39	D027	Print Sprite
208	143	D08F	Draw Aligned Columns
208	185	D0B9	Draw Lines
209	32	D120	Calculate Buffer Address
209	53	D135	Calculate Screen Address
209	87	D157	Calculate Attribute Address
209	116	D174	Flip Sprite
209	235	D1EB	Messaging: Copyright
210	0	D200	Screen Buffer
234	0	EA00	Unused
241	0	F100	Reversed Byte Table
242	0	F200	Shifted Byte Tables