Memory map

Page	Byte	Address	Description
64	0	4000	Loading screen
91	0	5B00	Super tiles
104	160	68A0	Room index
104	161	68A1	Current door
104	162	68A2	Transition
104	244	68F4	Enter room
105	26	691A	Squash stack, goto main
105	32	6920	Set hero sprite for room
105	57	6939	Set-up movable items
105	201	69C9	Reset non-player visible characters
105	220	69DC	Set-up doors
106	18	6A12	Get door
106	39	6A27	Wipe visible tiles
106	53	6A35	Set-up room
106	181	6AB5	Expand object
107	66	6B42	Plot interior tiles
107	121	6B79	Beds
107	133	6B85	Room definition dimensions
107	173	6BAD	Rooms and tunnels
108	21	6C15	Room 1: Hut 1, far side
108	71	6C47	Room 2: Hut 2, near side
108	109	6C6D	Room 3: Hut 2, far side
108	159	6C9F	Room 4: Hut 3, near side
108	201	6CC9	Room 5: Hut 3, far side
108	251	6CFB	Room 8: Corridor
109	15	6D0F	Room 9: Room with crate
109	55	6D37	Room 10: Room with lockpick
109	112	6D70	Room 11: Room with papers
109	148	6D94	Room 12: Corridor
109	166	6DA6	Room 13: Corridor
109	190	6DBE	Room 14: Room with torch
109	234	6DEA	Room 15: Room with uniform
110	32	6E20	Room 16: Corridor
110	50	6E32	Room 7: Corridor
110	67	6E43	Room 18: Room with radio
110	118	6E76	Room 19: Room with food
110	160	6EA0	Room 20: Room with red cross parcel
110	207	6ECF	Room 22: Room with red key
110	242	6EF2	Room 23: Breakfast room
111	32	6F20	Room 24: Solitary confinement cell
111	50	6F32	Room 25: Breakfast room
111	91	6F5B	Room 28: Hut 1, near side
111	130	6F82	Room 29: Start of second tunnel
111	158	6F9E	Room 31
111	186	6FBA	Room 36
111	211	6FD3	Room 32
111	236	6FEC	Room 34
112	8	7008	Room 35
112	36	7024	Room 30
112	65	7041	Room 40
112	93	705D	Room 44
112	117	7075	Room 50: Blocked tunnel
112	149	7095	Interior object definitions
113	1	7101	Room object 0: Straight tunnel section SW-NE
113	27	711B	Room object 1: Small tunnel entrance
113	33	7121	Room object 3: Straight tunnel section NW-SE
113	59	713B	Room object 4: Tunnel T-join section NW-SE
113	85	7155	Room object 5: Prisoner sat mid table
113	90	715A	Room object 6: Tunnel T-join section SW-NE
113	116	7174	Room object 7: Tunnel corner section SW-SE
113	142	718E	Room object 12: Tunnel corner section NW-NE
113	166	71A6	Room object 13: Empty bench
113	171	71AB	Room object 14: Tunnel corner section NE-SE
113	196	71C4	Room object 17: Tunnel corner section NW-SW
113	222	71DE	Room object 18: Tunnel entrance
113	248	71F8	Room object 19: Prisoner sat end table
114	0	7200	Room object 20: Collapsed tunnel section SW-NE
114	26	721A	Room object 2: Room outline 22x12 A
114	142	728E	Room object 8: Wide window facing SE
114	174	72AE	Room object 9: Empty bed facing SE
114	193	72C1	Room object 10: Short wardrobe facing SW
114	204	72CC	Room object 11: Chest of drawers facing SW
114	209	72D1	Room object 15: Door frame SE
114	235	72EB	Room object 16: Door frame SW
115	5	7305	Room object 22: Chair facing SE
115	15	730F	Room object 23: Occupied bed
115	37	7325	Room object 24: Ornate wardrobe facing SW
115	51	7333	Room object 25: Chair facing SW
115	60	733C	Room object 26: Cupboard facing SE
115	66	7342	Room object 29: Table
115	75	734B	Room object 30: Stove pipe
115	89	7359	Room object 31: Papers on floor
115	92	735C	Room object 32: Tall wardrobe facing SW
115	106	736A	Room object 33: Small shelf facing SE
115	111	736F	Room object 34: Small crate
115	116	7374	Room object 35: Small window with bars facing SE
115	133	7385	Room object 36: Tiny door frame NE (tunnel entrance)
115	147	7393	Room object 37: Noticeboard facing SE
115	165	73A5	Room object 38: Door frame NW
115	191	73BF	Room object 40: Door frame NE
115	217	73D9	Room object 41: Room outline 15x8
116	37	7425	Room object 42: Cupboard facing SW
116	45	742D	Room object 43: Mess bench
116	82	7452	Room object 44: Mess table
116	130	7482	Room object 45: Mess bench short
116	147	7493	Room object 46: Room outline 18x10 B
116	245	74F5	Room object 47: Room outline 22x12 B
117	112	7570	Room object 48: Tiny table
117	118	7576	Room object 49: Tiny drawers facing SE
117	126	757E	Room object 50: Tall drawers facing SW
117	136	7588	Room object 51: Desk facing SW
117	162	75A2	Room object 52: Sink facing SE
117	170	75AA	Room object 53: Key rack facing SE
117	176	75B0	Room object 27: Room outline 18x10 A
118	18	7612	Character structures
118	200	76C8	Item structures
119	56	7738	Routes
120	58	783A	Locations
120	214	78D6	Doors
122	198	7AC6	Solitary position
122	201	7AC9	Process player input - fire
123	54	7B36	Pick up item
123	139	7B8B	Drop item
123	181	7BB5	Drop item, tail part
123	208	7BD0	Calculate exterior item isometric position
123	228	7BE4	Drop item, interior
123	242	7BF2	Calculate interior item isometric position
124	38	7C26	Item to itemstruct
124	51	7C33	Draw all items
124	70	7C46	Draw item
124	130	7C82	Find nearby item
124	190	7CBE	Plot bitmap
124	212	7CD4	Screen wipe
124	233	7CE9	Next scanline down
124	252	7CFC	Message queue
125	15	7D0F	Message display delay
125	16	7D10	Message display index
125	17	7D11	Message queue pointer
125	19	7D13	Current message character
125	21	7D15	Queue message
125	47	7D2F	Plot glyph
125	48	7D30	Plot single glyph
125	72	7D48	Message display
125	135	7D87	Wipe message
125	153	7D99	Next message
125	205	7DCD	Messages table
126	254	7EFE	Unreferenced bytes
127	0	7F00	Static tiles
129	163	81A3	Unreferenced byte
129	164	81A4	Saved position
129	170	81AA	Touch's stash for register A
129	171	81AB	Unreferenced byte
129	172	81AC	Bitmap and mask pointers
129	178	81B2	Saved (tiny) position
129	181	81B5	Isometric position
129	183	81B7	Flip sprite
129	184	81B8	Hero's map position
129	187	81BB	Map position
129	189	81BD	Searchlight state
129	190	81BE	Room definition bounds index
129	191	81BF	Room definition object bounds count
129	192	81C0	Room definition object bounds
129	208	81D0	Unreferenced bytes
129	214	81D6	Interior doors
129	218	81DA	Interior mask data
130	19	8213	Saved item
130	20	8214	Item height
130	21	8215	Items held
130	23	8217	Character index
130	24	8218	Tiles
157	120	9D78	Main loop set-up
157	123	9D7B	Main loop
157	207	9DCF	Check morale
157	229	9DE5	Keyscan BREAK
158	7	9E07	Process player input
158	152	9E98	Picking lock
158	178	9EB2	Cutting wire
158	228	9EE4	Route to permitted
159	21	9F15	Permitted bounds
159	33	9F21	In permitted area
160	7	A007	In permitted area (end bit)
160	26	A01A	Within camp bounds
160	53	A035	Wave morale flag
160	113	A071	Set morale flag screen attributes
160	130	A082	Next scanline up
160	149	A095	Interior delay loop
160	158	A09E	Ring bell
160	201	A0C9	Plot ringer
160	210	A0D2	Increase morale
160	220	A0DC	Set morale
160	224	A0E0	Decrease morale
160	233	A0E9	Increase morale by 10, score by 50
160	242	A0F2	Increase morale by 5, score by 5
160	249	A0F9	Increase score
161	11	A10B	Plot score
161	29	A11D	Play speaker
161	47	A12F	Game counter
161	48	A130	Bell
161	49	A131	Unreferenced byte
161	50	A132	Score digits
161	55	A137	Hero in breakfast
161	56	A138	Red flag
161	57	A139	Automatic player counter
161	58	A13A	In solitary
161	59	A13B	Morale exhausted
161	60	A13C	Remaining morale
161	61	A13D	Clock
161	62	A13E	Entered move_a_character
161	63	A13F	Hero in bed
161	64	A140	Displayed morale
161	65	A141	Morale flag screen address
161	67	A143	Pointer to door being lockpicked
161	69	A145	Player locked out until
161	70	A146	This is the 'night-time' flag
161	71	A147	Bell ringer bitmaps
161	95	A15F	Set game window attributes
161	115	A173	Timed events
161	160	A1A0	Dispatch timed event
161	195	A1C3	Event: Night time
161	211	A1D3	Event: Another day dawns
161	231	A1E7	Event: Wake up
161	240	A1F0	Event: Go to roll call
161	249	A1F9	Event: Go to breakfast time
162	2	A202	Event: Breakfast time
162	6	A206	Event: Go to exercise time
162	21	A215	Event: Exercise time
162	25	A219	Event: Go to time for bed
162	40	A228	Event: New red cross parcel
162	99	A263	Red cross parcel current contents
162	100	A264	Event: Time for bed
162	106	A26A	Event: Search light
162	127	A27F	Prisoners and guards
162	137	A289	Wake up
162	226	A2E2	End of breakfast
163	63	A33F	Set hero route
163	68	A344	Set hero route (force)
163	81	A351	Go to time for bed
163	95	A35F	Set prisoners and guards route (variant "A")
163	115	A373	Set prisoners and guards route (variant "B")
163	140	A38C	Set character route
163	187	A3BB	Set route
163	237	A3ED	Store route
163	243	A3F3	Character -> bed (state)
163	248	A3F8	Character -> bed (vischar)
164	4	A404	Character -> bed (common)
164	32	A420	Character sits
164	68	A444	Character sleeps
164	98	A462	Character sit/sleep (common)
164	121	A479	Select room and plot
164	127	A47F	Hero sits
164	137	A489	Hero sleeps
164	145	A491	Hero sit/sleep (common)
164	169	A4A9	Set route: "go to yard"
164	183	A4B7	Set route: "go to yard" reversed
164	197	A4C5	Set route: "go to breakfast"
164	211	A4D3	Character event: breakfast (state)
164	216	A4D8	Character event: breakfast (vischar)
164	228	A4E4	Character event: breakfast (common)
164	253	A4FD	Go to roll call
165	11	A50B	Screen reset
165	28	A51C	Escaped
165	140	A58C	Keyscan all
165	156	A59C	Join item to escapeitem
165	163	A5A3	Item to escapeitem
165	191	A5BF	screenlocstring plot
165	206	A5CE	Escape messages
166	158	A69E	Bitmap font
167	198	A7C6	move_map Y
167	199	A7C7	Game window offset
167	201	A7C9	Get supertiles
168	10	A80A	Plot bottommost tiles
168	25	A819	Plot topmost tiles
168	38	A826	Plot horizontal tiles (common)
168	162	A8A2	Plot all tiles
168	207	A8CF	Plot rightmost tiles
168	231	A8E7	Plot leftmost tiles
168	244	A8F4	Plot vertical tiles (common)
169	160	A9A0	Plot tile, then advance
169	173	A9AD	Plot tile
169	228	A9E4	Shunt map left
170	5	AA05	Shunt map right
170	38	AA26	Shunt map up-right
170	75	AA4B	Shunt map up
170	108	AA6C	Shunt map down
170	141	AA8D	Shunt map down-left
170	178	AAB2	Move map
171	102	AB66	Zoombox parameters
171	106	AB6A	Game window attribute
171	107	AB6B	Choose game window attributes
171	160	ABA0	Zoombox
171	249	ABF9	Zoombox: fill
172	111	AC6F	Zoombox: draw border
172	252	ACFC	Zoombox: draw tile
173	41	AD29	Searchlight movements
173	89	AD59	Searchlight movement
173	189	ADBD	Night-time
174	117	AE75	Searchlight state variables
174	120	AE78	Searchlight caught
174	184	AEB8	Searchlight: plot
175	94	AF5E	Zoombox tiles
175	142	AF8E	Bribed character
175	143	AF8F	Touch
175	223	AFDF	Collision
177	7	B107	Accept bribe
177	76	B14C	Bounds check
177	199	B1C7	Multiply by 8
177	212	B1D4	Is door locked?
177	245	B1F5	Door handling
178	82	B252	Door in range?
178	149	B295	Multiply by 4
178	159	B29F	Interior bounds check
178	252	B2FC	Reset outdoors
179	45	B32D	Door handling: interior
179	135	B387	Action: Red cross parcel
179	168	B3A8	Action: Bribe
179	196	B3C4	Action: Poison
179	225	B3E1	Action: Uniform
179	246	B3F6	Action: Shovel
180	23	B417	Action: Wiresnips
180	149	B495	Action: Lockpick
180	174	B4AE	Action: Red key
180	178	B4B2	Action: Yellow key
180	182	B4B6	Action: Green key
180	184	B4B8	Action: Key
180	208	B4D0	Get nearest door
181	62	B53E	Walls
181	206	B5CE	Animate
183	27	B71B	Calculate vischar isometric position (from vischar)
183	41	B729	Calculate vischar isometric position (from state)
183	90	B75A	Reset game
183	155	B79B	Reset map and characters
184	55	B837	render_mask_buffer variables
184	59	B83B	Searchlight mask test
184	102	B866	Plot sprites
184	156	B89C	Get next drawable
185	22	B916	Render mask buffer
186	205	BACD	Multiply
186	220	BADC	Mask against tile
186	247	BAF7	Vischar visible
187	152	BB98	Restore tiles
188	170	BCAA	Select tile set
188	238	BCEE	Map tiles
196	26	C41A	PRNG pointer
196	28	C41C	Spawn characters
196	126	C47E	Purge invisible characters
196	224	C4E0	Spawn character
197	211	C5D3	Reset visible character
198	81	C651	Get target
198	160	C6A0	Move a character
199	154	C79A	Move towards
199	185	C7B9	Get character struct
199	198	C7C6	Character event
200	145	C891	Food discovered counter
200	146	C892	Automatics
201	24	C918	Character behaviour
202	17	CA11	Vischar move X
202	73	CA49	Vischar move Y
202	129	CA81	Target reached
203	35	CB23	Get target, assign position
203	45	CB2D	Route ended
203	97	CB61	Handle target
203	117	CB75	Multiply by 1
203	121	CB79	Get route
203	133	CB85	Random nibble
203	146	CB92	Unreferenced bytes
203	152	CB98	Solitary
204	49	CC31	Solitary commandant data
204	55	CC37	Guards follow suspicious character
204	171	CCAB	Hostiles pursue
204	205	CCCD	Is item discoverable?
204	251	CCFB	Is item discoverable (interior)
205	49	CD31	Item discovered
205	106	CD6A	Default item locations
205	154	CD9A	Character meta data
205	170	CDAA	Animation indices
205	242	CDF2	Animations
206	34	CE22	Sprites
207	6	CF06	Animations
208	38	D026	Sprite bitmaps and masks
219	158	DB9E	Mark nearby items
219	235	DBEB	Get next drawable itemstruct
220	65	DC41	Set-up item plotting
221	2	DD02	Item visible
221	105	DD69	Item attributes
221	125	DD7D	Item definitions
221	221	DDDD	Item bitmaps and masks
224	215	E0D7	Unreferenced bytes
224	224	E0E0	Plot masked sprites (16px) enables
224	236	E0EC	Plot masked sprites (24px) enables
224	252	E0FC	Unreferenced bytes
225	2	E102	Plot masked sprite (24px)
226	159	E29F	Plot masked sprite (16px) (x is zero)
226	162	E2A2	Plot masked sprite (16px)
227	250	E3FA	Flip 24 masked pixels
228	15	E40F	Flip 16 masked pixels
228	32	E420	Set-up vischar plotting
229	66	E542	Position to tinypos
229	80	E550	Divide by eight with rounding
229	85	E555	Divide by eight
229	95	E55F	Masks
234	124	EA7C	Interior mask data source
235	197	EBC5	Mask pointers
236	1	EC01	Exterior mask data
237	209	EDD1	Saved stack pointer
237	211	EDD3	Game window start addresses
238	211	EED3	Plot game window
239	154	EF9A	Event: Roll call
239	203	EFCB	Action: Papers
239	252	EFFC	User confirm
240	38	F026	Further game messages
240	93	F05D	Locked doors
240	104	F068	Jump to main
240	107	F06B	Key definitions
240	117	F075	Static tiles plot direction
240	118	F076	Static graphic definitions
241	99	F163	Main
241	224	F1E0	Plot statics and menu text
242	6	F206	Plot static tiles, horizontal
242	9	F209	Plot static tiles, vertical
242	11	F20B	Plot static tiles
242	87	F257	Wipe full screen and attributes
242	113	F271	Check menu keys
242	173	F2AD	Define key prompts
242	225	F2E1	byte_F2E1
242	226	F2E2	Keyboard port high bytes
242	235	F2EB	Special key names
243	3	F303	Keycode to glyph
243	43	F32B	Key name screen addresses
243	53	F335	Wipe game window
243	80	F350	Choose keys
244	8	F408	Set menu item attributes
244	28	F41C	Menu key scan
244	61	F43D	Input routines
244	69	F445	Chosen input device
244	70	F446	Key choice screenlocstrings
244	183	F4B7	Menu screen
245	44	F52C	Frequency for semitone
245	65	F541	Music channel indices
245	69	F545	Unreferenced byte
245	70	F546	Music channel 0 data
250	224	FAE0	Unreferenced bytes
253	225	FDE1	Loaded
253	243	FDF3	Unreferenced bytes
254	0	FE00	Input routine: Keyboard
254	71	FE47	Input routine: Protek
254	126	FE7E	Input routine: Kempston
254	163	FEA3	Input routine: Fuller
254	205	FECD	Input route: Sinclair
254	244	FEF4	Junk