Routines

Address	Description
37689	Wait for interrupt then display and handle input device selection menu
37764	Display and handle Gadget X menu
37880	Clear stack and prepare to load data
37909	Draw input device selection menu and update currently selected input device
37951	Display instructions windows
38003	Set border to black and clear temporary storage area of memory
38024	Initialise data and start a new game
38205	Main game loop: Process keyboard input and move Magic Knight or enter menus
38429	Handle Magic Knight's fall, preserving x-velocity
38434	Handle Magic Knight's falls
38585	Kill Magic Knight's x-velocity if he cannot horizontally pass through a block beside him
38724	Kill Magic Knight's jump if he cannot vertically pass through a block above him
38780	Draw top in-game window
38829	Print "STORMBRINGER" text at top of command summary window
38841	Move Magic Knight into room A, draw room, objects and characters and initialise room-specific data
39014	Room drawing: Start drawing layout data fragment
39036	Room drawing: Skip over block drawing data to start of next instruction
39047	Room drawing: (000) Draw floor, paint attributes / terrain interaction data, draw Magic Knight, characters and objects then return
39158	Room drawing: Advance IX to start of next room layout data entry and paint attributes
39183	Room drawing: Advance IX to start of next room layout data entry and paint terrain interaction data
39189	Room drawing: Start painting attribute / terrain interaction data for layout data fragment
39216	Draw run of 2 × 2 blocks horizontally
39291	Draw run of 2 × 2 blocks vertically
39366	Draw 2 × 2 block with style index A at stored coordinates then move right two characters
39393	Finalise room drawing, draw objects and characters, and animate the arrival of any new characters
39553	If a character has arrived then redraw Magic Knight and all characters in room
39578	Print Magic Knight's current room's name at top of screen
39655	Prepare to execute room-specific routine for Magic Knight's current room
39668	Check whether Magic Knight is moving into a new room and react if so
39682	Change Magic Knight's current room if possible
39714	Move Magic Knight one room to the left if possible
39758	Move Magic Knight one room to the right if possible
39795	Draw all characters in Magic Knight's current room
39829	Animate arrival of any new character if in Magic Knight's current room
39883	Draw a character
39933	Paint a character's attributes
39958	Animate puff of smoke at coordinates pointed to by IX
40008	Set Magic Knight's velocity to zero, if appropriate move to new room, update state of storm cloud and execute room-specific routine
40153	Decrease Magic Knight's current strength by ten
40177	Decrease Magic Knight's current strength by one every fourth call
40190	Decrease Magic Knight's current strength by average of 1/4 if he is carrying the Glow Shield
40201	Room-specific routine: Decrease Magic Knight's strength by one once every four frames
40235	Room-specific routine: Update position of 1 axe and display
40239	Room-specific routine: Update positions of 4 axes and display
40258	Room-specific routine: Kill Magic Knight if he is in a dark room without illumination
40326	Load B with room index of object A
40338	Room-specific routine: Check for egg dropped down wishing well and set wish-pending flag and display message if appropriate
40357	Check whether an egg has been dropped down the wishing well and set wish-pending flag if so
40406	Room-specific routine: Move Magic Knight down a room if appropriate
40437	Room-specific routine: Move Magic Knight between teleport rooms if appropriate
40489	Room-specific routine: Display cave progress and set Magic Knight's x-velocity to 2 if at floor level
40523	Room-specific routine: Set Magic Knight's x-velocity to 2 if his y-coordinate is 136
40527	Room-specific routine: Set Magic Knight's x-velocity to -2 if his y-coordinate is 136
40546	Room-specific routine: Move Magic Knight up or down a room if appropriate and boost jumps if wearing Power Boots
40598	Room-specific routine: Kill Magic Knight if he is too close to Bearwoolf
40614	Room-specific routine: Enable / disable entry to castle depending upon disquise worn and whether Newspaper is held
40658	Divide A by eight, rounding down to nearest integer
40664	Room drawing: Read graphic definition from room layout data and draw
40845	Paint room layout data entry's attributes, applying horizontal and vertical mirrors (room drawing)
40873	Paint room layout data entry's attributes, applying horizontal mirror (room drawing)
40905	Paint room layout data entry's attributes, applying vertical mirror (room drawing)
40937	Paint room layout data entry's attributes (room drawing)
41035	Store coordinates of area to be coloured and point IX at RLE attribute (or terrain interaction) data (room drawing)
41081	Paint room layout data entry's terrain interaction parameters, applying horizontal and vertical mirrors (room drawing)
41109	Paint room layout data entry's terrain interaction parameters, applying horizontal mirror (room drawing)
41141	Paint room layout data entry's terrain interaction parameters, applying vertical mirror (room drawing)
41173	Paint room layout data entry's terrain interaction parameters then advance to next entry (room drawing)
41271	Draw 2 × 2 block with style index A at bitmap virtual text cursor then move right two characters
41459	Read glowing character block definitions and add to current room
41477	Add a glowing character block to the current room
41504	Copy 2 × 4 (characters) region of display file into temporary storage
41545	Copy 2 × 4 (characters) region from temporary storage into display file
41578	Process command to pick up an object
41748	Process command to drop an object
41915	Load C with 7 (index of broken glass)
41918	Load C with 8 (index of broken glass)
41921	Load C with 9 (index of broken glass)
41924	Process command to take an object
42036	Remove current object from current character's inventory and add it to Magic Knight's then return to main game loop
42085	Take an object routine: Off-White Knight
42091	Take an object routine: Aramis Le Peux
42105	Take an object routine: Robin of Shylock
42157	Take an object routine: Have current character take object A in exchange for Newspaper
42220	Take an object routine: Reggie the Rat
42226	Take an object routine: Rachel of Amazonia
42232	Take an object routine: Barker the Ent
42238	Take an object routine: Organon the Guard
42244	Take an object routine: Grunter the Bearwoolf
42247	If current object is an egg then display "[Character] WANTS TO KEEP THE [Object]" window (13) and return to main game loop
42257	Process command to give an object
42395	Remove current object from Magic Knight's inventory and add it to a character's then return to main game loop
42429	Give an object routine: Off-White Knight
42441	Give an object routine: Robin of Shylock
42479	Give an object routine: Aramis Le Peux and Reggie the Rat
42482	Give an object routine: Rachel of Amazonia
42485	Give an object routine: Barker the Ent and Organon the Guard
42488	Give an object routine: Grunter the Bearwoolf
42494	Display and handle main in-game menu (when fire is pressed)
42616	Print currently available additional in-game menu command options
42638	Process command to examine yourself / a character / an object
42938	Insert numeric stats (at HL) of a character into "examine character" window text
43000	Insert numeric / text stats of an object into "examine object" window text
43043	Process command to command a character
43117	Send current character to sleep if possible
43158	Wake current character up if possible
43199	Make current character go away if possible
43250	Have a character help if possible
43318	Make current character eat and drink if possible
43428	Make current character be happy if possible
43494	Process command to read an object
43636	Process command to throw an object
43874	Process command to cast a spell
43950	Cast Dimension Merge if possible, otherwise display failure message
43998	Display failure message (when attempting to cast Melt Granite)
44001	Cast Pass Plant if possible, otherwise display failure message
44063	Cast Spell of Wonder if possible, otherwise display failure message
44100	Cast Travel to Person if possible, otherwise display failure message
44198	Cast Magic Fulcrum if possible, otherwise display failure message
44216	Cast Quiticus Gamus and jump to game over
44225	Flash border and screen and decrease Magic Knight's magic level if level is at least C
44253	Show "WELL DONE" screen, jumping to game over when fire is pressed
44337	Process command to blow an object
44615	Load BC with coordinates of character's arrival point when summoned and set zero flag if character refuses
44635	Process command to wear / unwear an object
44861	Process command to teleport
44933	Process command to tickle a character
44990	Process command to pull lever
45095	Process command to smell something
45131	Process command to have a wish
45149	Process command to have a drink
45206	Print name of B-th conditional command in command summary window
45224	Command-character-to-help routine for Off-White Knight
45227	Command-character-to-help routine for Aramis Le Peux
45256	Command-character-to-help routine for Robin of Shylock
45333	Command-character-to-help routine for Reggie the Rat
45336	Command-character-to-help routine for Rachel of Amazonia
45342	Command-character-to-help routine for Barker the Ent
45345	Command-character-to-help routine for Organon the Guard
45348	Command-character-to-help routine for Grunter the Bearwoolf
45351	Load A with weight of object A
45364	Load A with current character's happiness level
45380	Wait for interrupt then load object C into the first empty inventory slot of a character
45390	Point HL to the E-th byte of the A-th record in object properties table
45406	Point HL at E-th byte on A-th record of characters' current stats table (excluding Magic Knight)
45411	Point IX at current character's current stats
45423	If character's happiness is lower than B then show "[Character] DOES NOT WANT TO BE COMMANDED..." and jump to main game loop
45434	Increase current character's happiness by amount A
45450	Point IX at current inventory of character A
45466	Test whether current object is too heavy for Magic Knight to pick up (or take)
45505	Check whether Magic Knight is wearing an object
45510	Check whether Magic Knight is carrying an object
45522	Insert current time and score into "time left" and "percentage completion" texts
45552	Display "[Character] IS ASLEEP" window and jump to main game loop if current character is asleep, else return
45584	Load Magic Knight's coordinates (in characters) into DE
45601	Point HL at current position data for current character
45617	Adjust height (at DE) of a window to accommodate text
45625	Set a window's height to A
45631	Display "YOU ARE NOT WEARING ANYTHING" window and set zero flag if Magic Knight's inventory (wearing) is empty
45641	Display "YOU ARE NOT CARRYING ANYTHING" window and set zero flag if Magic Knight's inventory (carrying) is empty
45685	If A is 4 then display "THE BEAR SAYS..." message and wait for fire to be pressed
45723	End the game if current character is Off-White or Grunter
45766	Print name of object in inventory slot A of inventory data at HL in command summary window
45781	Update current character based upon selection made in menu
45802	Display a character's inventory window as an information window
45809	Show list of objects (window or menu) and handle selection if a menu
45963	Display and process input for character selection menu (current room's characters only)
46106	Display and process input for character selection menu (character list defined at HL)
46183	Set Magic Knight's available action flags
46326	Set Magic Knight's available action flags (additional)
46380	Load C with property of index A for all Magic Knight's carried objects, OR-ed together
46408	Create list of characters in room A and load A with number of characters
46463	Print Magic Knight's current strength at (6, 2) as text if he is carrying the Mirror
46490	Draw objects in Magic Knight's inventory if he is carrying the Mirror
46560	Update position of axe, display, and decrease Magic Knight's strength if in contact
46742	Multiply x- or y-velocity of axe by minus one
46784	Draw axe(s) to screen if Magic Knight is in an axe room
46837	Splice numeric data A as a string into a string at HL
46873	Print text at location HL to screen using full screen width
46902	Print text at location HL to screen
47020	Return from recursive text-printing
47023	Text printing: Return from current level of text printing
47049	Text printing: Print an entry from the common words table
47080	Text printing: Toggle BRIGHT flag
47084	Text printing: Toggle FLASH flag
47092	Text printing: Change PAPER colour
47096	Text printing: Change INK colour
47110	Print the current object's name
47121	Print appropriate Newspaper substring for current required disquise
47132	Print current Crystal Ball substring
47143	Print current Scroll substring
47154	Print the name of the current command
47162	Print the current character's full name
47170	Print the current character's short name
47178	Return
47179	Subtract 100 from common word index and jump to second part of common words table
47185	Draw a menu window
47193	Draw a window
47326	Draw a window frame
47491	Draw an upper or lower window frame edge then increment the border character index
47502	Process keyboard / joystick input on a menu and load A with selected item index
47592	Wait for fire button / key to be released
47603	Move hand cursor up and update menu item highlighting
47665	Move hand cursor down and update menu item highlighting
47703	Load A with (zero-based) index of selected menu item
47731	Invert INK and PAPER bits to (de-)highlight currently active menu item
47797	Convert numeric value BC to ASCII string at location HL
47833	Clear lower two thirds, and lower three character rows of upper third of display file
47856	Clear display file
47881	Flood attribute file with stored attribute value
47897	Set parameters for and play upward scale sound
47930	Set parameters for and play downward scale sound
47938	Set parameters for and play short downward scale sound
47946	Play hiss-type sound
47989	Set parameters (for cheat / debug routine sound) and play
48018	Get current border colour in A
48027	Fill a region of attribute file with specified attribute (e.g. background colour and colour of text within)
48081	Blank the interior of an area of the display file (i.e. set bytes to zero)
48164	Draw all objects in Magic Knight's current room
48191	Set terrain interaction data for character blocks spanned by an object and draw the object
48341	Remove object C from a character's inventory and tidy up remaining entries
48360	Draw a line from (C, B) to (E, D)
48389	Print word in temporary text buffer to screen, wrapping text if necessary, then process next word
48518	Move virtual text cursors (attribute and bitmap) down to left edge of next row of window
61214	Room drawing: Reset apply-vertical-mirror flag, reset apply-horizontal-mirror flag and draw a graphic
61236	Room drawing: Set apply-vertical-mirror flag, reset apply-horizontal-mirror flag and draw a graphic
61267	Room drawing: Reset apply-vertical-mirror flag, set apply-horizontal-mirror flag and draw a graphic
61297	Room drawing: Set apply-vertical-mirror flag, set apply-horizontal-mirror flag and draw a graphic
61336	Room drawing: Draw a graphic
61387	Load contents of A into memory location pointed to by HL
61390	Read (from graphic data) repeat counter value, x, and draw x rows of reset pixels
61411	Read (from graphic data) repeat counter value, x, and draw x rows of set pixels
61415	Room drawing: Jump to routine to advance HL to next display file address to be drawn to
61418	Room drawing: Advance HL to next display file address to be drawn to (apply-horizontal-mirror flag reset)
61521	Room drawing: Advance HL to next display file address to be drawn to (apply-horizontal-mirror flag set)
61625	Reverse the order of the bits in A
61638	Store background bitmap data at Magic Knight's current location
61720	Overlay graphic data for Magic Knight's current frame on table of bitmap data for Magic Knight at his current location
61774	Draw bitmap data for Magic Knight overlaid on background to display file
61816	Set redraw-Magic-Knight-on-next-interrupt flag and wait for interrupt
61823	Erase Magic Knight from display, advance his current position then redraw
61860	Store background attributes if appropriate, then draw Magic Knight to display without drawing axes
61913	Store background attribute data at Magic Knight's current location
62003	Restore background attribute data at Magic Knight's current location
62178	Call time-dependent routines (main interrupt routine)
62310	Interrupt routine: Write current attribute for a glowing block to attribute file
62317	Interrupt routine: Update glowing blocks' attribute to next colour in sequence
62330	Update game time, time left and move characters if appropriate
62428	Increase Magic Knight's current magic level by 20 (up to maximum of 100)
62443	Make Chicken lay an egg if possible
62476	Update all characters' stats (deteriorate or regenerate) and wake up / send to sleep if required
62594	Update characters' stats as they tire or regenerate
62622	Move character whose turn it is to move, if allowed
62778	Get index of destination room for a character and load into A
62812	Update index of character whose turn it is to be updated
62827	Update character's x-coordinate if new value is allowed, otherwise return
62853	Set position of character whose turn it is to move to his/her initial position
62877	End game due to running out of time
62959	Store all registers on the stack
62987	Restore all registers from the stack
63005	Print text/graphic character in A and advance bitmap virtual text cursor
63040	Draw axe to screen
63134	Load HL with display file address for coordinates in BC
63162	Draw a UDG, with index A, from 2 × 2 blocks' UDG data at location of bitmap virtual text cursor
63203	Move virtual cursor (bitmap) to display file for coordinates x=C, y=B and load address into HL
63219	Point HL at terrain interaction data, or attribute file address for character coordinates x=C, y=B
63233	Point HL at terrain interaction data for character coordinates x=C, y=B
63247	Advance bitmap virtual text cursor right by one character
63263	Advance bitmap virtual text cursor to start of next character row
63286	Update attribute virtual text cursor based upon current bitmap virtual text cursor
63302	Draw a run of characters (e.g. edge of frame of a window)
63313	Advance HL to byte after first zero from address in HL onwards
63322	Point HL at start of B-th entry in list of read-texts of readable objects
63327	Point HL at start of B-th entry in list of "command a character" commands
63332	Point HL at B-th entry in table of object names
63349	Print text at DE (command summary) in command summary window at top of screen
63388	Print command summary text (text at DE, e.g. "COMMAND ") in command summary window
63399	Print or update command summary window at top of screen
63443	Swap x- and y-coordinates of current window / graphic with values in temporary storage
63472	Update character printing routine to use base address of text character set graphics
63488	Update character printing routine to use base address of floor character set graphics
63494	Draw a graphic with lookup index A, width of 2 and height of 3 at character coordinates (C, B)
63499	Draw a graphic with lookup index A, width of 2 and height of 2 at character coordinates (C, B)
63504	Draw a graphic with lookup index A at character coordinates (C, B)
63598	Update currently selected input device
63657	If Kempston joystick is not present then revert to previously selected input device
63668	If key-press was enqueued then return index of last key pressed, else wait for key-press and return index
63691	Print current control keys to screen
63740	Redefine keyboard controls
63969	Set zero flag if key pressed is already assigned to a control, otherwise reset
64034	Capture keyboard input, or jump to joystick reading routine, loading result into A
64042	Capture keyboard input
64091	Capture Kempston joystick input
64122	Capture cursor joystick input
64159	Capture Sinclair joystick 1 input
64192	Store a "left" input from control device
64195	Store a "right" input from control device
64198	Store an "up" input from control device
64201	Store a "down" input from control device
64204	Store a "fire" input from control device
64207	Display execute / reject command window and return if execute chosen, else exit to main game loop
64230	Wait for interrupt then display "PRESS FIRE TO CONTINUE" window and wait for fire to be pressed
64258	Display "YOUR HANDS ARE FULL" window (13) and return to game
64265	Display "THE [object] IS TOO HEAVY FOR YOU" window (13) and return to game
64270	Display "[Character] WANTS TO KEEP THE [Object]" window (13) and return to game
64275	Display "[Character] DOES NOT WANT THE [Object]" window (13) and return to game
64280	Display "[Character] DOES NOT WANT TO BE COMMANDED BY YOU" window (29) and return to game
64285	Display "[Character] CANNOT HELP YOU" window (29) and return to game
64290	Display "YOU CANNOT [Current Command] THAT SPELL NOW..." window (12) and return to game
64297	Display window 12 with text at HL and return to game
64301	Display window 24 with text at HL and return to game
64305	Display window 27 with text at HL and return to game
64309	Display window 28 with text at HL and return to game
64313	Display window 29 with text at HL and return to game
64317	Display an information window with text at HL and return to game
64354	Scroll a region of the display file up a pixel row without wrapping
64360	Do nothing (return)
64361	Scroll a region of the display file down a pixel row without wrapping
64367	Scroll a region of the display file up a pixel row
64456	Scroll a region of the display file down a pixel row
64548	Flash border and screen (as in cast a spell)
64582	Display cyan "game over" window and return to control selection menu
64623	Advance HL by A words, load HL with word at location HL as address and jump to it
64627	Load address with index A in a list of addresses at HL into HL
64637	If do-not-draw-storm-cloud flag is set then prepare to draw storm cloud
64687	If do-not-draw-storm-cloud flag is reset then draw storm cloud
64810	Set new random seed and load A with a random number
64829	Generate a random seed / random number up to B
64836	Select Magic Knight's room (cheat / debug routine)
64878	Cheat / debug routine: Draw Magic Knight's current room then jump back into cheat routine main loop
64883	Cheat / debug routine: Decrease Magic Knight's current room index by 1, wrapping around to 51 if below zero
64906	Cheat / debug routine: Increase Magic Knight's current room index by 1, wrapping around to zero if above 51
64912	Cheat / debug routine: Increase Magic Knight's current room index by 8, wrapping around to zero if above 51
64919	Cheat / debug routine: Decrease Magic Knight's current room index by 8, wrapping around to zero if below zero
64926	Cheat / debug routine: Exit cheat / debug mode
64935	Set left and right x-coordinates to edges of screen and load A with Magic Knight's current strength
65524	Interrupt routine: second jump
65535	Interrupt routine: first jump