Memory map

Page	Byte	Address	Description
64	0	16384	Loading Screen
91	0	23296	Data block at 5B00
92	0	23552	Routine at 5C00
95	212	24532	Graphics: Mothership Alien
96	20	24596	Graphics: Shield
96	38	24614	Graphics: Lives Icon
96	46	24622	Graphics: Bullets
96	78	24654	Graphics: Ship
96	110	24686	Graphics: Eggsplosion
96	174	24750	Graphics: Bird
96	231	24807	Graphics: Pheenix (Egg)
97	61	24893	Graphics: Masks
97	91	24923	Graphics: Pheenix (Hatched)
97	163	24995	Graphics: Explosion Bits
97	187	25019	Graphics: MegaDodo Logo
97	219	25051	Graphics: Large Star
97	227	25059	Graphics: Box
97	235	25067	Graphics: Mothership Degraded Hull
100	43	25643	Messaging: Presents
100	51	25651	Messaging: Megadodo Software
100	75	25675	Messaging: Author M.W.Ward
100	94	25694	Messaging: "press S to start"
100	110	25710	Messaging: Game Over
100	118	25718	Messaging: Instructions
100	209	25809	Messaging: "Select Joystick Or Keys"
101	20	25876	Messaging: Header
101	40	25896	Score Buffer
101	47	25903	Table: Explosion UDGs
101	56	25912	Table: Mothership UDGs
101	138	25994	Table: "PHEENIX" Logo Position Data
101	219	26075	Random Number Seed
101	221	26077	Current Alien Phase Data Buffer
101	251	26107	Table: Phase 0 Alien Phase Data
102	25	26137	Table: Phase 1 Alien Phase Data
102	55	26167	Table: Phase 2/ 3 Alien Phase Data
102	71	26183	Table: Phase 4 Alien Phase Data
102	87	26199	Game status buffer entry at 6657
102	101	26213	Game status buffer entry at 6665
102	102	26214	Game status buffer entry at 6666
102	117	26229	Game status buffer entry at 6675
102	125	26237	Pheenix Colours
102	127	26239	Alien Count
102	128	26240	Game status buffer entry at 6680
102	143	26255	Alien Index
102	145	26257	Game status buffer entry at 6691
102	146	26258	Game status buffer entry at 6692
102	147	26259	Shield Flag?
102	148	26260	Shield Timer
102	149	26261	Bullet Rate Limiter?
102	150	26262	State: Fire Button
102	151	26263	Table: Bullet Position
102	158	26270	Table: Bullet Data
102	163	26275	Explosion: Frame
102	164	26276	Collision Flag
102	165	26277	Explosion Counter
102	166	26278	Movement Animation Frame Counter
102	167	26279	Game status buffer entry at 66A7
102	185	26297	Game status buffer entry at 66B9
102	186	26298	Game status buffer entry at 66BA
102	195	26307	Game status buffer entry at 66C3
102	196	26308	Game status buffer entry at 66C4
102	211	26323	Mothership Alien State
102	212	26324	Mothership Animation Counter
102	213	26325	Table: Alien Explosions
102	231	26343	Game status buffer entry at 66E7
102	237	26349	Player Attribute Buffer Position
102	239	26351	Flag: Extra Life
102	240	26352	Player Lives
102	241	26353	Phase?
102	242	26354	Flag: Title Screen Start
102	243	26355	Flag: Demo Mode Active?
102	244	26356	Demo Mode Movement
102	245	26357	Flag: Player Lost All Lives?
102	246	26358	Control Method
102	247	26359	Convert Screen Address To Attribute Buffer Address
103	4	26372	Convert Attribute Address To Screen Buffer Address
103	14	26382	Generate Random Number
103	32	26400	Clear Screen
103	46	26414	Clear Play-Area
103	111	26479	Print String
103	169	26537	Print Score
103	182	26550	Handler: Score
103	246	26614	Print Header
104	28	26652	Print Lives
104	69	26693	Handler: 2x2 Mask
104	78	26702	Handler: Eggsplosion Left
104	83	26707	Handler: Eggsplosion Right
104	86	26710	Handler: Eggsplosion
104	144	26768	Difficulty Delay?
104	161	26785	Print Asterisk
104	184	26808	Transition Effect
105	38	26918	Handler: Ship Explosion
105	106	26986	Draw Alien Mothership
106	35	27171	Handler: Mothership
107	49	27441	Fill Screen With UDG
107	79	27471	Print Control Menu
107	153	27545	Print Instructions Menu
108	13	27661	Data block at 6C0D
108	19	27667	Table: Music Data
108	157	27805	Check Collision
108	201	27849	Draw Ship
108	238	27886	Handler: Player Death/ Game Over
109	207	28111	Handler: Shield
110	248	28408	Handler: Ship Movement
111	67	28483	Handler: Move Ship Left
111	147	28563	Handler: Update Ship Attributes
111	221	28637	Handler: Move Ship Right
112	48	28720	Handler: Player Bullets
113	89	29017	Handler: Bullet Collision
113	190	29118	Handler: Bullet Collision Effects
114	84	29268	Handler: Level Reset
114	201	29385	Handler: Level Complete
115	13	29453	Handler: Display Mothership Bonus
116	7	29703	New Level Check
116	12	29708	Initialise Level
116	164	29860	Game Intro
117	100	30052	Clear Sprite Area
117	146	30098	Messaging: Hi There!
117	153	30105	Game Entry Point
117	173	30125	Handler: Bird Alien
117	183	30135	Handler: Pheenix
118	22	30230	Handler: Aliens Movement/ Spawning
121	178	31154	Handler: Alien Explosions
123	103	31591	Handler: Aliens
124	130	31874	Title Screen
125	217	32217	Start Game
126	71	32327	Input: "S" To Start
126	100	32356	Messaging: Programs Wanted
126	165	32421	Unused
255	24	65304	Unused