Routines

Address	Description
5C00	Routine at 5C00
66F7	Convert Screen Address To Attribute Buffer Address
6704	Convert Attribute Address To Screen Buffer Address
670E	Generate Random Number
6720	Clear Screen
672E	Clear Play-Area
676F	Print String
67A9	Print Score
67B6	Handler: Score
67F6	Print Header
681C	Print Lives
6845	Handler: 2x2 Mask
684E	Handler: Eggsplosion Left
6853	Handler: Eggsplosion Right
6856	Handler: Eggsplosion
6890	Difficulty Delay?
68A1	Print Asterisk
68B8	Transition Effect
6926	Handler: Ship Explosion
696A	Draw Alien Mothership
6A23	Handler: Mothership
6B31	Fill Screen With UDG
6B4F	Print Control Menu
6B99	Print Instructions Menu
6C9D	Check Collision
6CC9	Draw Ship
6CEE	Handler: Player Death/ Game Over
6DCF	Handler: Shield
6EF8	Handler: Ship Movement
6F43	Handler: Move Ship Left
6F93	Handler: Update Ship Attributes
6FDD	Handler: Move Ship Right
7030	Handler: Player Bullets
7159	Handler: Bullet Collision
71BE	Handler: Bullet Collision Effects
7254	Handler: Level Reset
72C9	Handler: Level Complete
730D	Handler: Display Mothership Bonus
7407	New Level Check
740C	Initialise Level
74A4	Game Intro
7564	Clear Sprite Area
7599	Game Entry Point
75AD	Handler: Bird Alien
75B7	Handler: Pheenix
7616	Handler: Aliens Movement/ Spawning
79B2	Handler: Alien Explosions
7B67	Handler: Aliens
7C82	Title Screen
7DD9	Start Game
7E47	Input: "S" To Start