Memory map

Page	Byte	Address	Description
64	0	16384	Loading screen
91	128	23424	Game entry point
92	240	23792	High Score
92	243	23795	Game Options
92	244	23796	1UP Score
92	247	23799	2UP Score
92	250	23802	Buffer
93	0	23808	Jetman Frame
93	1	23809	Jetman X Co-ordinate
93	2	23810	Jetman Y Co-ordinate
93	3	23811	Jetman Attribute
93	4	23812	Jetman Direction
93	5	23813	Jetman Speed: Horizontal
93	6	23814	Jetman Speed: Vertical
93	7	23815	Jetman Height
93	8	23816	Laser Beam Parameters
93	40	23848	Explosion Sound Parameters
93	48	23856	Active Player Rocket Parameters
93	56	23864	Fuel 00 when not on screen, $04 when visible
93	57	23865	Ship top section X position
93	58	23866	Fuel (height)
93	59	23867	PARAM12
93	60	23868	Fuel status
93	61	23869	PARAM14
93	62	23870	PARAM15
93	63	23871	PARAM16
93	64	23872	Item visibility
93	65	23873	Ship middle section X position
93	66	23874	Falling item (height)
93	72	23880	Data block at 5D48
93	80	23888	Alien 1
93	88	23896	Alien 2
93	96	23904	Alien 3
93	104	23912	Alien 4
93	112	23920	Alien 5
93	120	23928	Alien 6
93	136	23944	Game status buffer entry at 5D88
93	152	23960	Inactive Player Rocket Parameters
93	160	23968	Inactive Player Rocket module (fuel/part)
93	168	23976	Inactive Player Collectible/ Rocket middle
93	192	24000	Actor Buffer
93	200	24008	Jetman Fly Counter?
93	201	24009	Alien Direction
93	202	24010	Jetman Speed Modifier
93	203	24011	Current Alien ID
93	204	24012	Game Timer
93	206	24014	Random Number
93	207	24015	Actor Screen Position
93	209	24017	Active Player
93	210	24018	???
93	211	24019	???
93	212	24020	Last Frame
93	213	24021	Frame Updated
93	214	24022	Menu Item Attribute
93	215	24023	"Get Ready" Delay Counter
93	240	24048	Active Player Level
93	241	24049	Active Player Lives
93	242	24050	Unused
93	248	24056	Inactive Player Level
93	249	24057	Inactive Player Lives
94	0	24064	Data block at 5E00
95	192	24512	Data block at 5FC0
96	0	24576	Platform Graphics
96	16	24592	Player Initialisation Data
96	24	24600	Rocket Initialisation Data
96	48	24624	Fuel Pod Initialisation Data
96	56	24632	Collectible Initialisation Data
96	64	24640	Rights Messaging
96	97	24673	Copyright Messaging
96	138	24714	Create Game Window
96	169	24745	Initialise New Level
96	205	24781	Reset Rocket
96	221	24797	Reset Player
97	106	24938	1UP/ 2UP Swapper
97	135	24967	Game Over P1 Message
97	154	24986	Player Initialisation
97	189	25021	Routine at 61BD
97	211	25043	Routine at 61D3
97	229	25061	Security Check
97	235	25067	Game Initialisation
98	96	25184	Game Selection Menu
98	141	25229	Game Select Attribute Table
98	147	25235	Game Select Y Position Table
98	153	25241	Game Selection Title text
98	255	25343	Print Menu Item
99	15	25359	Reset Players
99	51	25395	Start Game
99	116	25460	Jump Table
99	152	25496	Routine at 6398
99	203	25547	Update Highscore
99	218	25562	Routine at 63DA
100	152	25752	Routine at 6498
101	31	25887	Routine at 651F
102	48	26160	Drop New Fuel Pod
102	91	26203	Reset Rocket Modules State
102	96	26208	Set Objects As Inactive
102	105	26217	Animate Rocket Flames
102	199	26311	Rocket Take Off
102	235	26347	Rocket Land
103	7	26375	Update Rocket
103	51	26419	Update Rocket Colour
103	195	26563	Collectables Sprite Table
103	237	26605	Sounds: Thrusters
103	253	26621	Sounds: Rocket Build
104	3	26627	Sounds: Pickup Fuel
104	9	26633	Sounds: Pickup Item
104	13	26637	Play square wave sound
104	30	26654	Sounds: Laser Beam
104	52	26676	Set Explosion Sound Defaults
104	75	26699	Sounds: Player Death
104	84	26708	Sounds: Enenmy Death
104	95	26719	Sounds: Explosion
104	112	26736	End Sound
104	117	26741	Do explosion after object death
104	148	26772	End Animation
104	159	26783	Start Animation
104	171	26795	Change Animation
104	177	26801	Animate explosion
105	15	26895	Explosion Sprite Table
105	27	26907	Limit Frame Rate
105	41	26921	Routine at 6929
105	69	26949	Alien Sprite Table
105	101	26981	Routine at 6965
106	108	27244	Routine at 6A6C
106	239	27375	Routine at 6AEF
108	47	27695	Routine at 6C2F
108	245	27893	Routine at 6CF5
109	211	28115	Meteor Update
111	145	28561	Handler: Laser Beam
111	252	28668	Animate: Laser Beam
112	164	28836	Display Lives
112	249	28921	Add Points To Score
113	28	28956	Print Scores
113	76	29004	Print Character
113	108	29036	Print String
113	146	29074	Print Banner
113	184	29112	Reset Screen Buffer
113	191	29119	Reset Routine
113	198	29126	Reset Attribute Buffer
113	207	29135	Colourise Sprite
114	14	29198	Calculate Attribute Address
114	36	29220	Routine at 7224
114	60	29244	Routine at 723C
114	94	29278	Routine at 725E
114	106	29290	Routine at 726A
114	238	29422	Routine at 72EE
115	8	29448	Calculate Screen Address
115	39	29479	Store Entity
115	58	29498	Controls: Kempston Joystick
115	62	29502	Input: Left/ Right
115	116	29556	Input: Fire
115	147	29587	Input: Thrust
115	178	29618	Game Play Starts
115	211	29651	Jetman Fly
117	113	30065	Jetman Walk
118	29	30237	Routine at 761D
118	109	30317	Routine at 766D
118	226	30434	Platform Graphics
118	250	30458	Jetman Sprite Table
119	26	30490	Data block at 771A
119	58	30522	Mask Sprite
119	150	30614	JetMan Graphics
123	158	31646	Round 1 Alien Graphics
123	204	31692	Explosion Frames
124	101	31845	Ship U3
124	206	31950	Ship U1
125	55	32055	Ship U2
125	160	32160	Ship U4
126	9	32265	Sprite: Gold Bar
126	28	32284	Sprite: Fuel Pod
126	53	32309	Sprite: Plutonium
126	78	32334	Sprite: Isotope
126	107	32363	Sprite: Mineral
126	128	32384	Sprite: Gemstone
126	155	32411	Round 2 Alien Graphics
126	213	32469	Round 4 Alien Graphics
126	228	32484	Round 5 Alien Graphics
126	245	32501	Round 3 Alien Graphics
127	51	32563	Round 6 Alien Graphics
127	82	32594	Round 7 Alien Graphics
127	111	32623	Round 8 Alien Graphics
127	140	32652	Flame Graphics
127	208	32720	Copyright Messaging