Routines

Address	Description
20640	Clear character buffer 214
20665	Print a message centred across the entire screen
20709	Populate a row of the screen with machine code
20896	Change a character's name
20956	Guide a character onto the catwalk or off it
21152	Display the cast of characters and change their names
21408	Do essential POKEs before the game starts
21419	Make a walking sound effect (yellow border)
21425	Clear the screen and request the input method (keyboard, joystick, Int2)
21664	Set the input method, change the characters' names, and start the game
21746	Prepare addresses 23808 to 24575
21920	Count down from 9 to 0
23808	Deal with ERIC while he's falling (2)
23843	Deal with ERIC's flight from the saddle of the bike
23859	Deal with ERIC's descent from the top-floor window
23863	'T' pressed - throw away the water pistol
23887	'J' pressed - jump
23907	Deal with ERIC when he's jumping
24028	Compare blackboard contents with combinations
24133	'W' pressed - write on a blackboard
24175	Deal with ERIC when he's writing on a blackboard
24237	Deal with ERIC when he's firing the catapult, hitting or kissing
24247	Signal that ERIC is firing the catapult, hitting, or kissing
24263	'H' pressed - hit
24296	'F' pressed - fire catapult
24328	Make HAYLEY hit ERIC
24348	'K' pressed - kiss
24477	Play a tune
24576	Superimpose sprite tiles onto a tile of the play area
24684	Print a tile
24880	Update a character's animatory state and location and update the SRB
25012	Update the SRB for a character's current animatory state and location
25026	Scroll the screen left 8 columns
25080	Scroll the screen right 8 columns
25188	Copy two bytes from a command list into a character's buffer
25213	Collect one byte from a command list
25233	Get a random number
25248	Update the display
25296	Move the characters
25484	Terminate a command
25503	Call an interruptible subcommand
25520	Jump to an interruptible subcommand
25525	Set the interruptible subcommand (unused)
25534	Determine ERIC's y-coordinate
25554	Get the play area region identifier for a given location
25581	Guide a character to an intermediate destination
25656	Guide a character up a staircase
25677	Guide a character down a staircase
25700	Make a character go to a location
25815	Make a character go to a random location
25843	Determine the next move of a character following another character
25944	Make a teacher find ERIC
26068	Check whether a character is beside a chair
26136	Check whether a chair is occupied
26175	Knock the current occupant (if any) out of a chair
26224	Deal with a character who's been dethroned (1)
26239	Deal with a character who's been dethroned (2)
26263	Deal with a character who is looking for a seat
26304	Make a character find a seat
26318	Get the next character of a message being spoken or written
26380	Update the SRB for a blackboard
26453	Get the identifier and coordinates of the blackboard close to a character
26496	Move the bike if it's obstructing the boys' skool door or the gate
26513	Write a single character on a blackboard
26639	Make a teacher wipe a blackboard
26752	Make a character write on a blackboard
26849	Update the SRB so that the speech bubble is not corrupted
26910	Remove the speech bubble
26941	Print a speech bubble UDG
26958	Print the speech bubble
27110	Place a font character bitmap into a message graphic buffer
27144	Make a character speak
27276	Save the area of the screen that will be overwritten by a message box
27364	Copy a graphic buffer to the screen
27419	Write a line of text into a graphic buffer
27462	Print a message box
27497	Print the score, lines total or hi-score (2)
27572	Compute the decimal digits of a number
27672	Alter UDG references in the play area for a door, a window, a cup or the bike
27804	Check whether any characters were punched
27820	Check whether any characters have been hit by a fist, pellet or conker
27860	Prepare the doors, windows, cups and bike for new game
27886	Get the x-coordinate range within which a character can see or be seen
27904	Control a boy during assembly
27954	Check whether a target character can be seen by another character
28002	Check whether ERIC can be seen by an adult
28029	Check for main kids near a teacher
28067	Check whether a location is on the assembly hall stage
28085	Determine which floor ERIC's on when he's not standing directly on one
28114	Put ERIC midstride
28160	Move ERIC from the midstride or mid-action position and scroll the screen if necessary
28216	Turn ERIC round
28240	Check whether a character is on a staircase
28305	Deal with ERIC when he has stepped off the stage
28315	Check for walls and closed doors in front of ERIC
28436	'P' pressed - right
28460	'O' pressed - left
28484	'Q' pressed - up
28576	'A' pressed - down
28658	Collect the identifier and coordinates of a blackboard that will be wiped
28672	Check for walls, closed doors and ALBERT in front of the bike
28736	Open or close a door or window
28767	Check for a closed door in front of a character
28814	Check for a closed door in a character's path and open it if allowed
28855	Make a character open or close a door
28877	Close any temporarily open doors if necessary
28952	Score 100 points and make the sound of a mouse being caught
28978	Make a female character stop jumping
28992	'D' pressed - drop stinkbomb
29012	Make a walking sound effect (blue border)
29030	Prevent ERIC from getting past ALBERT if necessary
29052	Make a character open or close a door
29101	Move the bike if it's obstructing the skool gate
29118	Get the ASCII code of the last key pressed
29178	Get the keypress offset of the last key pressed
29194	Control the bike when ERIC's not sitting on the saddle
29278	Deal with ERIC when he's riding the bike
29462	Deal with ERIC when he's standing on the saddle of the bike
29568	Display the frog in ERIC's inventory
29574	'M' pressed - mount bike
29613	Print the score, lines total or hi-score (1)
29621	Add to the score and print it
29643	Add to the lines total and print it
29681	Open the Science Lab storeroom door if ERIC has the key
29696	Calculate appropriate coordinates for a message box
29716	Make a teacher give lines
29836	Make a sound effect
29856	Check whether any adults were hit by the pellet, water, sherry or conker
29896	Control the descent of the water, sherry or conker
30102	Deal with a character who has been knocked over
30205	Check whether a pellet has hit a cup
30229	Check whether a pellet has hit a cup containing water, sherry or the frog
30292	Check for walls, doors and windows in the path of a mouse, frog or pellet
30380	Control the flight of a catapult pellet
30534	Initialise an uninterruptible subcommand
30543	Check whether a character is on the top, middle or bottom floor
30555	Make BOY WANDER fire his catapult now and then
30643	Deal with BOY WANDER when he is firing
30664	Check whether any characters were or can be punched by ERIC or ANGELFACE
30706	Make ANGELFACE hit now and then
30739	Deal with ANGELFACE when he is hitting
30786	Knock down a main kid hit by a pellet
30804	Deal with the frog when it has been knocked out of a cup
30906	Control the frog
31078	Control a female character while she's standing on a chair or jumping (1)
31092	Make a female character stand on a chair or start jumping
31128	Control a female character while she's standing on a chair or jumping (2)
31150	Make any female characters near a mouse start or continue jumping
31254	Control a mouse
31462	Release some mice (if possible)
31502	Prepare character buffers for released mice
31573	Make ERIC catch a mouse or frog (if present)
31723	Update the SRB for ERIC or his pellet and scroll the screen if necessary
31733	Make ERIC catch the frog (if possible)
31746	Print the inventory
31844	Print an inventory item
31861	Collect the bit mask and game status buffer address for an event identifier
31887	Check whether a signal has been raised
31893	Raise the signal for a certain event (unused)
31896	Raise the signal for a certain event
31905	Lower the signal for a certain event (unused)
31915	Check whether a character should continue walking up and down
31952	Make a character walk up and down until a certain time
31969	Make a character walk up and down a few times or until a certain time
32000	Get the identifier for ERIC's location
32021	Check whether ERIC is where he should be
32032	Make any nearby teacher give ERIC lines if necessary (1)
32054	Make MR WACKER find the truant ERIC
32062	Make any nearby teacher give ERIC lines if necessary (2)
32373	Make MISS TAKE chase ERIC (1)
32379	Make MISS TAKE chase ERIC (2)
32433	Print the lesson and ring the bell
32497	Make BOY WANDER write on a blackboard
53796	Make a character do nothing
57637	'C' pressed - catch a mouse or the frog
57669	Deal with ERIC when he's bending over, dropping a stinkbomb etc.
57893	'R' pressed - release mice
57910	Prepare buffer 213 for use by a stinkbomb cloud
57935	Check whether buffer 214 is being used
61440	Control EINSTEIN during class
61463	Make EINSTEIN speak
61487	Make a teacher give lines to EINSTEIN or the kid he grassed up
61512	Check whether ERIC and EINSTEIN are in class
61533	Make a teacher tell the class what to do
61555	Restart the command list or make a teacher tell the kids to sit down
61595	Make a teacher find the truant ERIC
61624	Restart the command list
61631	Make a teacher find ERIC if he's absent during dinner
61658	Control a teacher during assembly
61696	Make a teacher conduct a class
62032	Make MR WACKER put the kids in detention
62094	Deal with ERIC when he's been knocked over
62178	Deal with ERIC when he's sitting or lying down
62423	'S' pressed - sit (1)
62438	Make ERIC sit in a chair or on the floor
62460	'S' pressed - sit (2)
62483	Collect a keypress during the game (or simulate one in demo mode)
62560	Make the next command be the start of the command list
62572	Restart the command list unless the boys' skool door is closed
62599	Jump forward in the command list if the boys' skool door or the gate is closed
62620	Wait till everyone has gone past the gate or the boys' skool door
62668	Make ALBERT keep an eye out for ERIC during lessons
62770	Set MR WACKER on his way to expel ERIC
62794	Make MR WACKER find the truant ERIC
62815	Make MR WACKER find and expel ERIC
62910	Prepare for a new game
63156	Move the characters, close doors, and give ERIC lines if necessary
63166	Start a new game if a key is pressed while ERIC's sitting or lying down in demo mode
63189	Start a new game or enter demo mode
63210	Main loop
63309	Change the lesson
63405	Deal with ERIC
63447	Place a continual subcommand routine address into a character's buffer
63455	Make ANGELFACE stalk HAYLEY
63492	Make ANGELFACE or BOY WANDER hit or fire now and then
63501	Restart the command list unless it's time for assembly
63512	Scroll the display file left or right one column
63553	Scroll the display file left one column
63561	Scroll the display file right one column
63576	Clear various game and lesson flags
63586	Deal with a stinkbomb when dropped
63801	Deal with MR WACKER's journey to a window
63861	Prepare the buffer for ERIC's catapult pellet and make a sound effect
63878	Check for the presence of a plant pot
63898	'G' pressed - fire water pistol
63915	Control water fired from the pistol (1)
64057	Control water fired from the pistol (2)
64077	Deal with water fired from the pistol at certain phases
64242	Begin ERIC's descent from a plant, a plant pot, or the assembly hall stage
64259	Deal with ERIC when he's stepping off a plant, a plant pot, or the assembly hall stage
64316	Deal with ERIC when he's standing on a plant or plant pot
64416	Deal with ERIC when he's falling to the floor to land on his feet
64460	Deal with ERIC while he's falling (1)