Routines

Address	Description
8D80	Plot Screen Pixel
8DCC	Print Dispatch
8DDD	Print Dispatch Return
8DE3	Print Handler
8E0F	Print Handler: Newline
8E23	Print Handler: Unsupported
8E2E	Print Handler: Ink
8E3D	Print Handler: Paper
8E52	Print Handler: Flash
8E65	Print Handler: Bright
8E78	Print Handler: Print At X
8E82	Print Handler: Print At Y
8E92	Print Handler: Tab
8EAA	Print Handler: Left Margin
8EB3	Print Handler: Right Margin
8EC7	Print Handler: Select Font
8EE6	Print Handler: Mask Parameter
8EF7	Print Handler: Render
9006	Print Messaging
9010	Initialise Print Tables
9044	Reset Print State
9063	Routine at 9063
C400	Game Entry Point Alias
C544	Print Player Score
C5C1	Check Score Award Life
C6CE	Lookup Vector Table Entry
C6DA	Hit Test: 8-Byte Bounds Pair
C702	Dispatch Handler Pointer From HL
C713	Update Attribute Bar
C77D	Poll H Key
C794	Draw Lives Display
C84F	Erase Narrow Entity Sprite
C856	Draw Narrow Entity Sprite
C949	Erase Wide Entity Sprite
C950	Draw Wide Entity Sprite
CB4F	Main Game Loop
CC81	Draw Spawned Entity
CCCE	Primary Enemy Entity Handler
CCE9	Process Enemy Entity
CD13	Advance Entity Pointer
CD18	Find Colliding Entity
CD34	Clear Colour Bar Column
CD50	Handle Homing Enemy
CE64	Apply Wave Border Colour
CE72	Compute Entity Approach Position
CEB9	Animate Wave Start Sequence
CEDF	Step Narrow Entity Approach
CF33	Dispatch Narrow Entity Approach
CF52	Step Wide Entity Approach
CFA4	Paint Narrow Entity Attributes
D004	Paint Wide Entity Attributes
D070	Clear Screen Buffer
D07E	Set Background Colour
D08B	Swap Player State
D0A7	Print Wave Number
D0F0	Spawn Primary Wave Enemies
D1A8	Advance RNG Seed
D1BF	Generate Random Byte
D24C	Stage Next Wave
D2BC	Strip Attributes and Fade
D30C	Clear Screen and Render HUD
D317	Render HUD
D367	Player Death
D3F8	Player Death: Tape Load Continue
D486	Draw Life Icon Cells
D4BB	Erase Life Icon Cells
D519	Initialise Wave Start Sprites
D52A	Animate Wave Start Sprites
D562	Draw Playfield Border Row
D570	Draw Playfield Border
D5B1	Remove Entity from List
D630	Erase Entity Sprite
D637	Draw Entity Sprite
D794	Draw Clipped Wide Sprite
D9C4	Initialise Entity State
D9E0	Dispatch Entity State Handler
DA2A	Cycle Border from Screen
DA97	Delay Short
DAA3	Delay Long
DAAF	Draw Wide Entity Sprite
E003	Process Entity Record
E122	Spawn Wave Enemies
E1B6	Handle Horizontal Enemy Entity
E22A	Begin Enemy Death Animation
E262	Find Colliding Wave Enemy
E290	Spawn Horizontal Wave Enemies
E2C8	Pick Random Spawn Position
E2FD	Clamp Entity Velocity
E31C	Build Entity Spawn Record
E346	Apply Direction Delta
E360	Process Tracked Enemy Entity
E492	Tick Entity Colour Timer
E4A7	Retire Expired Entity
E4B9	Kill Tracked Enemy Entity
E520	Process Cluster Entity
E6B4	Retire Cluster Entity
E6C4	Apply Entity Velocity
E6F7	Process Player Tracking Enemy
E7CF	Spawn Tracked Enemy Entities
E863	Evaluate and Spawn Tracked Enemies
E881	Process Wall Bouncing Enemy
E92C	Spawn Wall Bouncing Enemies
E974	Kill Wall Bouncing Enemy
E9CC	Animate Wall Bouncing Enemy Death
EA17	Handle Enemy Collision Chain
EA6E	Process Replacement Enemy Entity
EB07	Process Final Phase Enemy Entity
EBBC	Game Entry Point
EBC8	Display High Score Entry Screen
ECA4	Initialise Display and Set Border
ECDE	Display Loop Delay
ECE6	Check BREAK Key
ECFB	Check S Key During Display
ED10	Save Or Load High Scores
ED71	Check Any Key During Display
ED7C	Scan and Cycle Screen Attributes
ED93	Scan Score Display Attributes
EDAA	Adjust Score Field Cursor
EDDD	Adjust Name Entry Cursor
EE02	Search Score Entry Table
EE0B	Calculate Attribute Cell Address
EE1D	Highlight Score Entry Row
F04D	Fill Row
F058	Fill Column
F063	Draw Colour Ring
F092	Draw Concentric Rings
F09D	Draw Colour Border
F0AE	Fill Border Attributes
F0EE	Cycle Border Colour
F107	Print BCD Score
F2F9	Draw Score Entry
F3AE	Display High Score Screen
F488	Draw Colour Flash Rectangle
F4EC	Attract Mode Loop
F51D	Advance Colour Cycle
F5A0	Advance Intro Colour Cycle
F5BB	Advance Flash Colour Cycle
F5DA	Extra Life Flash Effect
F606	OR Blit Title Strips
F637	Draw Attract Title
F6C3	Read Control Input
F6D8	Common Control Input Return
F6E9	Read Keyboard Combined
F6EE	Read Keyboard Split
F6FA	Read Keyboard Rows
F704	Read Control Kempston
F71E	Read Control Sinclair
F73D	Read Control Fuller
F752	Read Control Cursor
F76F	XOR Blit Sprite
F7EE	Animate Intro Sprites
F83C	Draw Intro Sprites