Memory map

Page	Byte	Address	Description
64	0	4000	Loading Screen
72	133	4885	Decrypt Game
72	161	48A1	Loading Screen Remainder
88	0	5800	Loading Screen Attributes
91	0	5B00	Unused
93	50	5D32	Messaging: Credits
93	102	5D66	Unused
93	206	5DCE	Buffer: Room Tiles
96	238	60EE	Buffer: Room Attributes
100	14	640E	Pointer: Active Font
100	16	6410	Player Jump Timer
100	17	6411	Restart Room Flag
100	18	6412	Print Buffer Offset
100	20	6414	Unused
100	22	6416	Print Width
100	23	6417	Temporary Pair
100	25	6419	Clip Window
100	29	641D	Active Border Colour
100	30	641E	Pointer: Room Header
100	32	6420	Reference: Furniture
100	34	6422	Reference: Doors
100	36	6424	Reference: Collectibles
100	38	6426	Reference: Inventory Items
100	40	6428	Reference: Ladders
100	42	642A	Reference: Moving Objects
100	46	642E	Reference: Decorations
100	48	6430	Reference: Actors
100	50	6432	Reference: Enemies
100	52	6434	Collision State
100	53	6435	Player Hit Timer
100	54	6436	Temporary Flags
100	56	6438	Player Stand Timer
100	57	6439	Unused
100	58	643A	Player Mask
100	61	643D	Unused
100	62	643E	Sprite Shift Buffer
100	64	6440	Actor Mask Buffer
100	72	6448	Player Footprint
100	74	644A	Hit Ceiling Row
100	75	644B	Pointer: Collided Actor
100	77	644D	Special Actor
100	91	645B	Unused
100	105	6469	Pointer: Tune Data
100	107	646B	Pointer: Tune Data Copy
100	109	646D	Current Tune Byte
100	110	646E	Interrupt Tick
100	111	646F	Game Active Flag
100	112	6470	Pause Timer
100	114	6472	Sound Flags
100	115	6473	Sound Duration
100	116	6474	Unused
100	124	647C	Skip Delay Flag
100	125	647D	Game Complete Flag
100	126	647E	Control Method
100	127	647F	User-Defined Keys
100	132	6484	Saved Keys
100	134	6486	Kempston Masks
100	136	6488	Tape Checksum
100	137	6489	Action Timer
100	138	648A	Climb Row
100	139	648B	Carried Object
100	159	649F	Event Timer
100	160	64A0	Pending Event
100	161	64A1	Collected Keys
100	162	64A2	Current Room
100	163	64A3	Temporary Room
100	164	64A4	Player
100	178	64B2	Random Number Seed
100	180	64B4	Player Lives
100	181	64B5	Unused
100	193	64C1	Collection Slots
100	197	64C5	Table: Room Data
100	247	64F7	Buffer: Unpacked Rooms
124	112	7C70	Buffer: Active Font
132	112	8470	Graphics: Font Bank 1
136	112	8870	Graphics: Font Bank 2
140	112	8C70	Graphics: Font Bank 3
144	112	9070	Graphics: Tile Font
152	112	9870	Introduction Screen
179	112	B370	Data: Tune Stream
180	145	B491	Data: Tune Stream Copy
181	177	B5B1	Graphics: Player
181	216	B5D8	Data: Player Masks
188	17	BC11	Data: Rooms
210	254	D2FE	Graphics: Menu Font
211	129	D381	Graphics: Introduction Frames
212	193	D4C1	Source Code Remnants
213	172	D5AC	Initialise Game
215	48	D730	Start Game
215	56	D738	Change Room
215	101	D765	Game Loop
215	162	D7A2	Dispatch Handlers
215	210	D7D2	Handler: Collectibles
215	255	D7FF	Handler: Housekeeping
216	38	D826	Read Kempston
216	45	D82D	Handler: Kempston
216	100	D864	Handler: Kempston Climb
216	119	D877	Handler: Room Pause
216	136	D888	Demo Room Count
216	137	D889	Select Control Method
216	148	D894	Handler: Moving Objects
217	4	D904	Handler: Room Sixteen
217	182	D9B6	Handler: Room Seven
218	21	DA15	Print Key Bar
218	63	DA3F	Handler: Carried Object
218	195	DAC3	Pendulum Position
218	196	DAC4	Pendulum Delta
218	197	DAC5	Animate Pendulum
219	5	DB05	Handler: Pendulum
219	36	DB24	Draw Pendulum
219	63	DB3F	Test Actor Collision
219	201	DBC9	Handler: Inventory Items
220	38	DC26	Handler: Event Timer
220	55	DC37	Reverse Direction
220	83	DC53	Pause Leaving Room
220	98	DC62	Handler: Enemies
220	245	DCF5	Cheat: Next Room
221	3	DD03	Cheat: Previous Room
221	18	DD12	Prepare Tape Block
221	34	DD22	Save Game
221	55	DD37	Load Game
221	108	DD6C	Checksum Tape
221	132	DD84	Wait Keypress
221	146	DD92	Toggle Tune
221	151	DD97	Handler: Keyboard
222	25	DE19	Handler: Combination
225	204	E1CC	Handler: Player
227	222	E3DE	Handler: Actors
228	108	E46C	Handler: Interrupts
229	29	E51D	Animate Introduction
230	58	E63A	Draw Intro UDG
230	91	E65B	Start Demo Game
230	102	E666	Play Tune
230	236	E6EC	Table: Default Keys
230	243	E6F3	Messaging: Title
231	60	E73C	Messaging: Menu
231	80	E750	Messaging: Keyboard
231	98	E762	Messaging: Kempston
231	143	E78F	Messaging: Define Keys
231	228	E7E4	Messaging: Load Game
232	2	E802	Table: Key Map
232	42	E82A	Table: Room Pause
232	88	E858	Unused
233	252	E9FC	Initialise Rooms
233	255	E9FF	Dispatch Events
234	2	EA02	Unpack Rooms
236	242	ECF2	Print Inventory
237	45	ED2D	Copy Font Bank 1
237	57	ED39	Copy Font Bank 2
237	69	ED45	Copy Font Bank 3
237	81	ED51	Clear Room Buffers
237	113	ED71	Reset Player
237	130	ED82	Draw Furniture
237	154	ED9A	Draw Door
237	177	EDB1	Draw Header Furniture
237	217	EDD9	Handler: Events
238	210	EED2	Event: Hide Enemies
238	229	EEE5	Event: Reveal Decorations
238	250	EEFA	Event: Reveal Header
239	58	EF3A	Event: Reveal Pair
239	92	EF5C	Event: Reveal Triple
239	138	EF8A	Event: Start Actor
239	211	EFD3	Event: Swap Keys
239	230	EFE6	Event: Draw Header
239	245	EFF5	Event: Draw Next Header
240	0	F000	Event: Draw Header Pair
240	6	F006	Event: Draw Fourth Header
240	17	F011	Event: Nudge Actor
240	62	F03E	Event: Start Enemy
240	106	F06A	Event: Start Short Timer
240	114	F072	Event: Draw Header Timer
240	125	F07D	Event: Hide Header Pair
240	144	F090	Hide Header Item
240	180	F0B4	Event: Hide Fourth Header
240	192	F0C0	Event: Reveal Header Triple
240	228	F0E4	Event: Reveal Furniture
241	37	F125	Event: Reveal Ladder
241	100	F164	Event: Show Enemy
241	136	F188	Event: Award Digit
241	147	F193	Hide Decoration
241	182	F1B6	Event: Test Header
241	196	F1C4	Event: Reveal Decor And Mover
241	212	F1D4	Event: Reveal Next Pair
241	238	F1EE	Event: Reveal Three Decorations
242	23	F217	Event: Show Movers
242	44	F22C	Event: Hide Furniture
242	68	F244	Event: Bump Digit Three
242	73	F249	Event: Bump Digit Four
242	78	F24E	Event: Bump Digit Two
242	83	F253	Event: Bump Digit One
242	86	F256	Event: Bump Digit
242	106	F26A	Event: Hide Later Actor
242	132	F284	Clear Collision
242	143	F28F	Event: Hide Actor
242	178	F2B2	Event: Randomise Combination
242	224	F2E0	Event: Reveal Door
243	29	F31D	Event: Reveal Next Door
243	40	F328	Event: Reveal Third Door
243	51	F333	Copy Destination
243	80	F350	Event: Print Event Message
243	97	F361	Event: Reveal All Decorations
243	149	F395	Event: Toggle Tune
243	165	F3A5	Messaging: Event
243	208	F3D0	Unused
244	36	F424	Jump Store Position
244	39	F427	Jump Draw Status
244	42	F42A	Jump Initialise Display
244	45	F42D	Jump Set Print Position
244	48	F430	Jump Delay
244	51	F433	Jump Get Random Number
244	54	F436	Jump Print Character
244	57	F439	Jump Print Clipped
244	60	F43C	Jump Convert Coordinate
244	63	F43F	Jump Write Tile
244	66	F442	Jump Move Entity
244	69	F445	Jump Print Sprite
244	72	F448	Jump Advance Entity
244	75	F44B	Jump Draw Entity
244	78	F44E	Jump Erase Entity
244	81	F451	Jump Fill Tiles
244	84	F454	Jump Fill Attributes
244	87	F457	Jump Spawn Entity
244	90	F45A	Jump Draw Actor
244	93	F45D	Jump Update Actor
244	96	F460	Jump Print Message
244	99	F463	Jump Draw Box
244	102	F466	Store Entity Position
244	139	F48B	Draw Box
244	168	F4A8	Draw Status Icons
244	190	F4BE	Add Score
244	240	F4F0	Print Score
245	68	F544	Print Message
245	106	F56A	Initialise Display
245	196	F5C4	Set Print Position
245	236	F5EC	Delay
245	244	F5F4	Get Random Number
246	10	F60A	Print Character
246	98	F662	Print Clipped
246	170	F6AA	Convert Coordinate
246	198	F6C6	Write Tile
246	225	F6E1	Move Entity
247	170	F7AA	Print Sprite
248	4	F804	Advance Entity
248	51	F833	Shift Sprite Left
248	180	F8B4	Draw Entity
249	238	F9EE	Erase Entity
250	90	FA5A	Fill Attributes
250	106	FA6A	Clip Rectangle
250	158	FA9E	Fill Tiles
250	254	FAFE	Spawn Entity
251	47	FB2F	Draw Actor
251	144	FB90	Update Actor
251	210	FBD2	Unused
254	254	FEFE	Alias: Interrupt Jump Dispatcher
255	1	FF01	Unused