Fairlight: Memory map

Page	Byte	Address	Label	Description
91	0	5B00	SPRITE5B00	Sprite, 8 by 8 (the template for type 51)
91	16	5B10	SPRITE5B10	Sprite, 8 by 8
91	32	5B20	SPRITE5B20	Sprite, 8 by 8
91	48	5B30	SPRITE5B30	Sprite, 16 by 23 (the template for type 52)
91	140	5B8C	SPRITE5B8C	Sprite, 16 by 23
91	232	5BE8	SPRITE5BE8	Sprite, 16 by 23
92	68	5C44	SPRITE5C44	Sprite, 8 by 16 (the template for type 53)
92	100	5C64	SPRITE5C64	Sprite, 8 by 16 (the template for type 54)
92	132	5C84	SPRITE5C84	Sprite, 24 by 24 (the template for type 48)
93	20	5D14	TYPE48_FRAMES	Frames 1 and 2 of object type 48, striking
94	52	5E34	SPRITE5E34	Sprite, 24 by 14 (the template for type 50)
94	136	5E88	SPRITE5E88	Sprite, 16 by 32 (the template for type 45)
95	8	5F08	SPRITE5F08	Sprite, 16 by 32
95	136	5F88	SPRITE5F88	Sprite, 48 by 21 (the template for type 55)
96	132	6084	SPRITE6084	Sprite, 16 by 32 (the template for type 56)
97	4	6104	SPRITE6104	Sprite, 16 by 10 (the template for type 40)
97	44	612C	SPRITE612C	Sprite, 16 by 10
97	84	6154	SPRITE6154	Sprite, 16 by 10
97	124	617C	SOURCE_AND_STACK	Leftover source text, and the game's stack
99	156	639C	MASTER_OBJECTS	The master copy of the object table, the variables and the knight's record
104	157	689D	ZEROS_BEFORE_ROOMS	Unused
104	176	68B0	ROOM1	Room 1
104	180	68B4	ROOM2	Room 2
104	246	68F6	ROOM3	Room 3
105	73	6949	ROOM4	Room 4
105	126	697E	ROOM5	Room 5
105	212	69D4	ROOM6	Room 6
106	30	6A1E	ROOM7	Room 7
106	95	6A5F	ROOM8	Room 8
106	235	6AEB	ROOM9	Room 9
106	249	6AF9	ROOM10	Room 10
107	72	6B48	ROOM11	Room 11
107	192	6BC0	ROOM12	Room 12
107	198	6BC6	ROOM13	Room 13
107	224	6BE0	ROOM14	Room 14
107	237	6BED	ROOM15	Room 15
108	1	6C01	ROOM16	Room 16
108	9	6C09	ROOM17	Room 17
108	52	6C34	ROOM18	Room 18
108	60	6C3C	ROOM19	Room 19
108	94	6C5E	ROOM20	Room 20
108	115	6C73	ROOM21	Room 21
108	121	6C79	ROOM22	Room 22
108	188	6CBC	ROOM23	Room 23
108	196	6CC4	ROOM24	Room 24
108	209	6CD1	ROOM25	Room 25
108	215	6CD7	ROOM26	Room 26
108	237	6CED	ROOM27	Room 27
109	164	6DA4	ROOM28	Room 28
109	185	6DB9	ROOM29	Room 29
110	80	6E50	ROOM30	Room 30
110	86	6E56	ROOM31	Room 31
110	105	6E69	ROOM32	Room 32
110	136	6E88	ROOM33	Room 33
110	162	6EA2	ROOM34	Room 34
110	218	6EDA	ROOM35	Room 35
110	251	6EFB	ROOM36	Room 36
111	15	6F0F	ROOM37	Room 37
111	122	6F7A	ROOM38	Room 38
111	189	6FBD	ROOM39	Room 39
111	199	6FC7	ROOM40	Room 40
111	215	6FD7	ROOM41	Room 41
111	243	6FF3	ROOM42	Room 42
112	15	700F	ROOM43	Room 43
112	72	7048	ROOM44	Room 44
112	78	704E	ROOM45	Room 45
112	180	70B4	ROOM46	Room 46
113	5	7105	ROOM47	Room 47
113	44	712C	ROOM48	Room 48
113	124	717C	ROOM49	Room 49
113	155	719B	ROOM50	Room 50
113	182	71B6	ROOM51	Room 51
113	246	71F6	ROOM52	Room 52
114	34	7222	ROOM53	Room 53
114	47	722F	ROOM54	Room 54
114	55	7237	ROOM55	Room 55
114	61	723D	ROOM56	Room 56
114	82	7252	ROOM57	Room 57
114	99	7263	ROOM58	Room 58
114	105	7269	ROOM59	Room 59
114	111	726F	ROOM60	Room 60
114	117	7275	ROOM61	Room 61
114	164	72A4	ROOM62	Room 62
114	220	72DC	ROOM63	Room 63
114	232	72E8	ROOM64	Room 64
115	61	733D	ROOM65	Room 65
115	73	7349	ROOM66	Room 66
115	79	734F	ROOM67	Room 67
115	85	7355	ROOM68	Room 68
115	91	735B	ROOM69	Room 69
115	173	73AD	ROOM70	Room 70
115	206	73CE	ROOM71	Room 71
115	228	73E4	ROOM72	Room 72
115	248	73F8	ROOM73	Room 73
116	26	741A	ROOM74	Room 74
116	94	745E	ROOM75	Room 75
116	113	7471	ROOM76	Room 76
116	131	7483	ROOM77	Room 77
116	147	7493	ROOM78	Room 78
116	217	74D9	ROOM79	Room 79
117	86	7556	ROOM80	Room 80
117	136	7588	ROOM81	Room 81
117	140	758C	PART1	Part 1
117	169	75A9	PART2	Part 2
117	187	75BB	PART3	Part 3
117	253	75FD	PART4	Part 4
118	25	7619	PART5	Part 5
118	35	7623	PART6	Part 6
118	68	7644	PART7	Part 7
118	130	7682	PART8	Part 8
118	209	76D1	PART9	Part 9 (no room draws it)
118	212	76D4	PART10	Part 10
118	254	76FE	PART11	Part 11 (no room draws it)
119	44	772C	PART12	Part 12 (no room draws it)
119	65	7741	PART13	Part 13
119	110	776E	PART14	Part 14
119	129	7781	PART15	Part 15
119	169	77A9	PART16	Part 16
119	188	77BC	PART17	Part 17
119	242	77F2	PART18	Part 18
119	249	77F9	PART19	Part 19
120	35	7823	PART20	Part 20
120	69	7845	PART21	Part 21
121	18	7912	PART22	Part 22
121	53	7935	PART23	Part 23
121	122	797A	PART24	Part 24
121	154	799A	PART25	Part 25
121	172	79AC	PART26	Part 26
121	210	79D2	PART27	Part 27
121	221	79DD	PART28	Part 28
121	241	79F1	PART29	Part 29
122	1	7A01	PART30	Part 30
122	23	7A17	PART31	Part 31
122	48	7A30	PART32	Part 32
122	70	7A46	PART33	Part 33 (no room draws it)
122	73	7A49	PART34	Part 34
122	88	7A58	PART35	Part 35
122	127	7A7F	PART36	Part 36
122	175	7AAF	PART37	Part 37
122	193	7AC1	PART38	Part 38
122	253	7AFD	PART39	Part 39
123	27	7B1B	PART40	Part 40
123	72	7B48	PART41	Part 41
123	117	7B75	PART42	Part 42
123	132	7B84	PART43	Part 43
123	147	7B93	PART44	Part 44
123	167	7BA7	PART45	Part 45
123	177	7BB1	PART46	Part 46
123	192	7BC0	PART47	Part 47
123	214	7BD6	PART48	Part 48
124	27	7C1B	PART49	Part 49
124	57	7C39	PART50	Part 50
124	67	7C43	PART51	Part 51
124	82	7C52	PART52	Part 52 (no room draws it)
124	108	7C6C	PART53	Part 53
124	123	7C7B	PART54	Part 54
124	138	7C8A	PART55	Part 55
124	188	7CBC	PART56	Part 56
124	203	7CCB	BYTES_AFTER_PARTS	Bytes after the parts
125	0	7D00	SPRITE7D00	Sprite, 40 by 34 (the template for type 0)
126	84	7E54	SPRITE7E54	Sprite, 16 by 13 (the template for type 3)
126	136	7E88	SPRITE7E88	Sprite, 24 by 21 (the template for type 2)
127	6	7F06	SPRITE7F06	Sprite, 24 by 14 (the template for type 4)
127	90	7F5A	SPRITE7F5A	Sprite, 32 by 24 (the template for type 5)
128	26	801A	SPRITE801A	Sprite, 24 by 20 (the template for type 1)
128	146	8092	SPRITE8092	Sprite, 16 by 17 (the template for type 6)
128	214	80D6	SPRITE80D6	Sprite, 16 by 10 (the template for type 29)
128	254	80FE	SPRITE80FE	Sprite, 16 by 9 (the template for type 30)
129	34	8122	SPRITE8122	Sprite, 16 by 10 (the template for type 31)
129	74	814A	SPRITE814A	Sprite, 24 by 13 (the template for type 32)
129	152	8198	SPRITE8198	Sprite, 24 by 29 (the template for type 8)
130	70	8246	SPRITE8246	Sprite, 16 by 16 (the template for type 9)
130	134	8286	SPRITE8286	Sprite, 16 by 5 (the template for type 14)
130	154	829A	SPRITE829A	Sprite, 16 by 10 (the template for type 17)
130	194	82C2	SPRITE82C2	Sprite, 24 by 26 (the template for type 7)
131	94	835E	SPRITE835E	Sprite, 24 by 41 (the template for type 22)
132	84	8454	SPRITE8454	Sprite, 24 by 21 (the template for type 23)
132	210	84D2	SPRITE84D2	Sprite, 40 by 18 (the template for type 18, type 24)
133	134	8586	SPRITE8586	Sprite, 24 by 24 (the template for type 19)
134	22	8616	SPRITE8616	Sprite, 24 by 24 (the template for type 20, type 46)
134	166	86A6	SPRITE86A6	Sprite, 24 by 24 (the template for type 49)
135	54	8736	BYTES_AFTER_TYPE49	Bytes between two sprites
135	90	875A	SPRITE875A	Sprite, 24 by 17 (the template for type 16)
135	192	87C0	SPRITE87C0	Sprite, 24 by 8 (the template for type 21)
135	240	87F0	SPRITE87F0	Sprite, 16 by 24 (the template for type 25)
136	80	8850	SPRITE8850	Sprite, 40 by 26 (the template for type $52)
137	84	8954	SPRITE8954	Sprite, 24 by 51 (the template for type $47)
138	134	8A86	SPRITE8A86	Sprite, 24 by 51 (the template for type $49)
139	184	8BB8	SPRITE8BB8	Sprite, 24 by 38 (the template for type 13)
140	156	8C9C	SPRITE8C9C	Sprite, 24 by 38
141	128	8D80	SPRITE8D80	Sprite, 24 by 38
142	100	8E64	SPRITE8E64	Sprite, 24 by 38
143	72	8F48	SPRITE8F48	Sprite, 24 by 38
144	44	902C	SPRITE902C	Sprite, 24 by 38
145	16	9110	SPRITE9110	Sprite, 24 by 31
145	202	91CA	SPRITE91CA	Sprite, 24 by 31
146	132	9284	SPRITE9284	Sprite, 24 by 31
147	62	933E	SPRITE933E	Sprite, 24 by 31
147	248	93F8	SPRITE93F8	Sprite, 24 by 31
148	178	94B2	SPRITE94B2	Sprite, 24 by 31
149	108	956C	SPRITE956C	Sprite, 24 by 31
150	38	9626	SPRITE9626	Sprite, 24 by 31
150	224	96E0	SPRITE96E0	Sprite, 24 by 31
151	154	979A	SPRITE979A	Sprite, 24 by 31
152	84	9854	SPRITE9854	Sprite, 24 by 31
153	14	990E	SPRITE990E	Sprite, 24 by 31
153	200	99C8	SPRITE99C8	Sprite, 24 by 31
154	130	9A82	SPRITE9A82	Sprite, 24 by 31
155	60	9B3C	SPRITE9B3C	Sprite, 16 by 23 (the template for type 34)
155	152	9B98	SPRITE9B98	Sprite, 8 by 24 (the template for type 35)
155	200	9BC8	SPRITE9BC8	Sprite, 8 by 24 (the template for type 36)
155	248	9BF8	SPRITE9BF8	Sprite, 40 by 24 (the template for type 37)
156	232	9CE8	SPRITE9CE8	Sprite, 24 by 24 (the template for type 38)
157	120	9D78	SPRITE9D78	Sprite, 40 by 24 (the template for type 39)
158	104	9E68	DIAGONAL_SPRITE	A sprite no object uses
158	200	9EC8	SPRITE9EC8	Sprite, 8 by 32 (the template for type 41)
159	8	9F08	SPRITE9F08	Sprite, 16 by 13 (the template for type 15)
159	60	9F3C	SPRITE9F3C	Sprite, 24 by 26 (the template for type 26, type 33)
159	216	9FD8	SPRITE9FD8	Sprite, 24 by 26
160	116	A074	SPRITEA074	Sprite, 24 by 26
161	16	A110	SPRITEA110	Sprite, 24 by 26
161	172	A1AC	SPRITEA1AC	Sprite, 24 by 26
162	72	A248	SPRITEA248	Sprite, 24 by 26
162	228	A2E4	SPRITEA2E4	Sprite, 24 by 26
163	128	A380	SPRITEA380	Sprite, 24 by 26
164	28	A41C	SPRITEA41C	Sprite, 24 by 26
164	184	A4B8	SPRITEA4B8	Sprite, 24 by 26 (the template for type 27, type 28)
165	84	A554	SPRITEA554	Sprite, 24 by 26
165	240	A5F0	SPRITEA5F0	Sprite, 24 by 26
166	140	A68C	SPRITEA68C	Sprite, 24 by 26
167	40	A728	SPRITEA728	Sprite, 24 by 26
167	196	A7C4	SPRITEA7C4	Sprite, 24 by 26
168	96	A860	SPRITEA860	Sprite, 24 by 26
168	252	A8FC	SOURCE_BEFORE_OBJECTS	Leftover source text
169	36	A924	OBJECTS	Where the object table is kept while the game runs
182	128	B680	SOURCE_BEFORE_TITLE	Leftover source text
182	134	B686	TITLE_PAGE_TEXT	Print the title page's words
183	52	B734	TEMPLATES	Where the object templates are kept while the game runs
186	216	BAD8	FONT	The font
188	24	BC18	FIXED_RECORDS	The room's floor, ceiling and walls: six object records
188	144	BC90	KNIGHT	The knight's object record
188	164	BCA4	RECORDS	The object records for the room's things
192	0	C000	LOADING_TUNE	Play the loading tune until a key is pressed
192	26	C01A	VOICE_ONE_NOTE	The loading tune's variables
192	38	C026	TUNE_NEXT_NOTE	Take a voice's next note
192	51	C033	TUNE_PITCH	Look up a note's pitch
192	65	C041	TUNE_RESTART_VOICE	Send a voice back to where it repeats from
192	73	C049	TUNE_PLAY_NOTE	Play one note of the loading tune
192	176	C0B0	TUNE_VOICES	The loading tune: where the voices start, the pitches, and the two voices
196	124	C47C	START	The game's first instruction
196	186	C4BA	SOURCE_AFTER_START	Leftover source text
196	224	C4E0	OBJECTS_TAPE	The object table, as the tape has it
209	53	D135	SOURCE_AFTER_OBJECTS	Leftover source text
210	240	D2F0	TEMPLATES_TAPE	Templates for object types 0-56, as the tape has them
213	102	D566	LARGE_TEMPLATES_TAPE	Templates for object types $46-$54, as the tape has them
214	0	D600	PATCHES_TAPE	Patches for the codes $E6 up in a room's object list, as the tape has them
214	148	D694	SOURCE_AFTER_TEMPLATES	Leftover source text
218	192	DAC0	LOADER_TABLE	What the loader left: its table of pieces, its stack and its checksum
218	223	DADF	LOADER_CLEARED	The loader, cleared
220	201	DCC9	LOADER_FAILURE	The loader's failure routine
221	57	DD39	SYMBOL_TABLE	What is left of the development assembler's symbol table
223	242	DFF2	MESS2	Print the closing lines of the quest
224	38	E026	SYMBOLS_AFTER_MESS2	More of the symbol table
224	56	E038	SHOW_MESSAGE	Show a message under the room, and take it away again
224	154	E09A	SYMBOLS_BEFORE_TEXTURES	More of the symbol table
224	164	E0A4	TEXTURES	Texture 0 (fill code $E6)
224	196	E0C4	TEXTURE1	Texture 1 (fill code $E7)
224	228	E0E4	TEXTURE2	Texture 2 (fill code $E8)
225	4	E104	TEXTURE3	Texture 3 (fill code $E9)
225	36	E124	TEXTURE4	Texture 4 (fill code $EA)
225	68	E144	TEXTURE5	Texture 5 (fill code $EB)
225	100	E164	TEXTURE6	Texture 6 (fill code $EC)
225	132	E184	TEXTURE7	Texture 7 (fill code $ED)
225	164	E1A4	TEXTURE8	Texture 8 (fill code $EE)
225	196	E1C4	TEXTURE9	Texture 9 (fill code $EF)
225	228	E1E4	TEXTURE10	Texture 10 (fill code $F0)
226	4	E204	TEXTURE11	Texture 11 (fill code $F1)
226	36	E224	TEXTURE12	Texture 12 (fill code $F2)
226	68	E244	TEXTURE13	Texture 13 (fill code $F3)
226	100	E264	TEXTURE14	Texture 14 (fill code $F4)
226	132	E284	TEXTURE15	Texture 15 (fill code $F5)
226	164	E2A4	TEXTURE16	Texture 16 (fill code $F6)
226	196	E2C4	TEXTURE17	Texture 17 (fill code $F7)
226	228	E2E4	TEXTURE18	Texture 18 (fill code $F8)
227	4	E304	TEXTURE19	Texture 19 (fill code $F9)
227	36	E324	TEXTURE20	Texture 20 (fill code $FA)
227	68	E344	TEXTURE21	Texture 21 (fill code $FB)
227	100	E364	TEXTURE22	Texture 22 (fill code $FC)
227	132	E384	TEXTURE23	Texture 23 (fill code $FD)
227	164	E3A4	TEXTURE24	Texture 24 (fill code $FE)
227	196	E3C4	TEXTURE25	Texture 25 (fill code $FF)
227	228	E3E4	COMPOSITE_TO_SCREEN	Redraw a rectangle of the screen from an image, its mask and the clean copy
228	247	E4F7	ISO_MOVE	Move an object to a new position, and its sprite on the screen with it
229	91	E55B	DRAW_CURRENT_ROOM	Draw the room the knight is in
229	130	E582	ROOM_DEFAULTS	What the drawing variables start as in each room
229	151	E597	DRAW_ROOM_RECORD	Draw a room from its record
229	186	E5BA	CLEAR_ROOM_SCREEN	Clear the screen
229	232	E5E8	DO_ROOM_COMMAND	Carry out one room command
231	52	E734	FILL_NEXT_SEED	Fill the next run of a flood fill
231	178	E7B2	FILL_NEXT_PIXEL	Paint one row of the textured fill, a pixel at a time, leftwards
232	6	E806	FILL_WHOLE_BYTE	Fill a whole byte at once when nothing in it needs looking at pixel by pixel
232	52	E834	FILL_BYTE_TO_LEFT	Move the fill's pointers a byte to the left
232	73	E849	PIXEL_ADDRESS	Find the screen byte of a pixel
232	100	E864	BUFFER_PIXEL	Find a pixel in the clean copy of the screen
232	110	E86E	SCREEN_PIXEL	Find a pixel's screen byte and its mask
232	125	E87D	PLOT_LINE_START	Plot the first pixel of a line
232	155	E89B	MORE_ROOM_COMMANDS	The room commands $C1-$E4: lines, mode bits, repeats, parts, the clean copy and $E4
234	204	EACC	PLACE_ROOM_OBJECTS	Put the object table's things for this room into its records
235	26	EB1A	PLACE_OBJECT	Make an object record from a type, a place and its template
235	76	EB4C	PLACE_FROM_TEMPLATE	Fill an object record from its template (PLACE_OBJECT continued)
235	234	EBEA	COPY_TO_RECORD	Copy bytes into an object record
235	244	EBF4	BYTE_BEFORE_PRINT_CHAR	A spare byte
235	245	EBF5	PRINT_CHAR	Print one character
235	254	EBFE	PRINT	Print the string after the call
236	59	EC3B	PRINT_FIND_GLYPH	Find a character in the font and print it (PRINT continued)
236	76	EC4C	SHOW_THING_IN_USE	Show a carried thing in the panel's box
236	117	EC75	CLEAR_THING_BOX	Clear the panel's box for the thing in use, and number it
236	189	ECBD	REDRAW_OBJECT	Redraw an object, and every other object that overlaps it
237	71	ED47	CULL_OBJECT	Sort one object into the redraw of a region: in front, behind, or out of it
237	184	EDB8	RECORD_FROM_NUMBER	Point IX at an object record by its number
237	193	EDC1	RECORD_FROM_NUMBER_STEP	The stepping loop of RECORD_FROM_NUMBER
237	198	EDC6	SORT_AND_DRAW_BEHIND	Put the objects behind in drawing order, and draw them into pages $DA and $DB
238	115	EE73	IS_IN_FRONT	Is this object in front of the other?
238	141	EE8D	DRAW_SPRITE	Draw an object's sprite into one of the region's buffers
239	78	EF4E	DRAW_SPRITE_SKIP_COLUMNS	Part of DRAW_SPRITE: move the buffer pointer to the sprite's first column
239	83	EF53	DRAW_SPRITE_CLIP_LEFT	Part of DRAW_SPRITE: a sprite that starts left of the region
239	108	EF6C	DRAW_SPRITE_ROWS	Part of DRAW_SPRITE: skip the bytes cut off at the left, then draw the rows
240	54	F036	FAR_CORNER	Find an object's far corner and floor
240	76	F04C	CLEAR_256_BELOW	Clear the 256 bytes below HL
240	80	F050	CLEAR_512_BELOW	Clear the 512 bytes below HL
240	101	F065	TITLE_SCREEN	The title, a game, GAME OVER, and round again
240	210	F0D2	WAIT	Wait for no key, then for a key
240	223	F0DF	INPUT	Read a row of keys
240	230	F0E6	IN31	Read the Kempston joystick, if it is in use
240	251	F0FB	ATTRI	Colour the whole screen in the room's colour
241	11	F10B	RESTOR	Copy the screen to the clean copy at LOADING_TUNE
241	23	F117	MIMAN	Turn the knight's sprites to face his way
241	31	F11F	MIWRAI	Turn the sprites of the state-11 creature to face its way
241	39	F127	MITRO	Turn the sprites of the state-7 creature to face its way
241	87	F157	MW	Mirror a run of sprite planes in place, if they face the other way
241	153	F199	FACING	Turn facing bits back into a direction, and find the view's sprite
241	180	F1B4	DECLI1	Take ten from LIFE
241	200	F1C8	DE1	Take a number from LIFE's two digits
241	224	F1E0	CHE3D	Update one object: the start of the dispatch on its state
242	247	F2F7	STEER	Keep a creature's course, or aim it at the knight when its count runs out
243	9	F309	CREATURE_UPDATE	Update an object by its state: guards, the troll, the wraith, the floating things and the knight
244	230	F4E6	SET_THING_ROOM	Write a thing's room into the object table
244	244	F4F4	PICK_UP	Pick up whatever the knight is standing at
245	42	F52A	PICK_UP_LOOK_ON	Look on for a thing that can be carried, and take it
245	149	F595	KNIGHT_CONTROLS	The knight's controls: walk, jump or fight, and the frames they show
246	92	F65C	ANIMATE_AND_MOVE	Show the frame, then move the object and redraw it
247	176	F7B0	WORKING_POSITION	Where the object being updated is
247	186	F7BA	WORKING_SIZES	How big the object being updated is
247	196	F7C4	BUMPED	Something is in the way: a door takes the knight through, anything else is met
249	6	F906	SAVE_OBJECT_POSITIONS	Write the room's things' positions back into the object table (the author's EEN)
249	89	F959	OBJECTS_MEET	Settle what happens when a moving object runs into one that is not a door
250	116	FA74	SKIPPED_REMOVAL	Five bytes of code no jump reaches
250	121	FA79	MOVER_VANISHES	Make the mover vanish where it stands
250	131	FA83	MEET_DECOY	Let a guard take a decoy, or else stop the part of a move that is blocked
252	7	FC07	STEP_ALONG_X	Step a position along x, if x is moving
252	28	FC1C	STEP_ALONG_Y	Step a position along y, the height, if y is moving
252	43	FC2B	STEP_ALONG_Z	Step a position along z, if z is moving
252	64	FC40	STEP_ALL_AXES	Step a position along every axis that is moving
252	72	FC48	ZOOMIN	Aim a chasing creature at the knight, or at a decoy (the author's ZOOMIN)
252	102	FC66	AIM_AT	Work out which way a chaser should go to reach its target
252	156	FC9C	TEST_OTHER	Test the mover's box, moved, against the record at IX only
252	165	FCA5	FIND_OBSTACLE	Find a record whose box overlaps a given box
252	220	FCDC	TEST_ONE_RECORD	Test a box against one record, unless it is the mover's own or hidden
253	32	FD20	ROOMST	Enter the room in ROOM, or end the quest (the author's ROOMST)
254	21	FE15	DRAW_STILL_THINGS	Draw a room's doors and still things into its picture, and start the main loop
254	71	FE47	MAIN_LOOP	The main loop: the keys between passes, LIFE, the message line and every object
255	106	FF6A	UDG_LEFTOVERS	Leftover characters
255	128	FF80	OBJECT_COUNT	The game's variables