Routines

Address	Description
$0800	Main loop
$09E9	Make a teacher conduct a class
$0A57	Do nothing
$0A58	Make a teacher conduct a class with ERIC
$0B3B	Check whether ERIC and EINSTEIN are in class
$0BAC	Compute the coordinate ranges within which a character can see or be seen
$0C31	Adjust the lesson length if a character is looking for ERIC
$0C3F	Make a character track down ERIC
$0D67	Check whether a character is within a coordinate range
$0D91	Get the identifier for ERIC's location
$0DD4	Prepare message box sprite graphic data from the text graphic buffer
$0E35	Make a teacher perform dinner duty
$0E59	Check whether a boy can be seen by a teacher
$0EB4	Restart the command list
$0EC2	Restart the command list unless it's time to start the lesson
$0ECF	Make a teacher give lines to the closest main kid
$0FBA	Control the horizontal flight of a catapult pellet
$1042	Control the vertical flight of a catapult pellet
$105B	Make a character go to a random location
$108B	Get the next character of a message being spoken or written
$1129	Make a character write on a blackboard
$11CF	Write a single character on a blackboard
$126D	Get the play area region identifier for a given location
$1294	Get the address of a skool tile corresponding to a blackboard character cell
$12B5	Make a character go to a location
$136F	Guide a character to an intermediate destination
$13D5	Determine the address of a blackboard buffer
$13F3	Guide a character up or down a staircase
$1421	Copy a blackboard buffer into page 0
$1445	Restore a blackboard buffer from page 0
$1468	Get the identifier and coordinates of the blackboard closest to a character
$149F	Make any nearby teacher give ERIC lines if necessary
$15B3	Deal with ERIC
$1640	Check whether ERIC is standing on a boy
$169B	'F' or SPACE pressed - fire catapult
$16D0	'J' or 'L' pressed - jump
$16DF	'H' pressed - hit
$16E9	Make a teacher wipe a blackboard
$176F	Check whether ERIC has jumped up to the safe or a shield
$17E5	Deal with ERIC when he's hitting
$184E	Deal with ERIC when he's writing on a blackboard
$189D	Deal with ERIC when he's jumping
$191B	Deal with ERIC when he's firing the catapult
$1994	Wipe a blackboard character cell clean
$19A5	'W' pressed - write
$1A04	Make a character walk up and down until a certain time
$1A51	Check whether a character is beside a chair
$1B2E	Determine the next move of a character following another character
$1BFA	Check whether a chair is occupied and unseat any occupant
$1C59	Knock the current occupant (if any) out of a chair
$1C8E	Check whether a character is on a staircase
$1CB4	Deal with a character who's been dethroned (1)
$1CCB	Deal with a character who's been dethroned (2)
$1CEC	Deal with a character who is looking for a seat
$1D16	Make a character find a seat
$1D28	Terminate an interruptible subcommand
$1D2D	Terminate a primary command
$1D32	Terminate an uninterruptible subcommand
$1D37	Add to the score and print it
$1D4A	Add to ERIC's lines total and print it
$1DB7	Make a teacher give lines
$1EC2	Get ERIC's coordinates
$1EE3	Make EINSTEIN speak
$1F29	Make MR CREAK reveal his safe combination letter
$1F4D	Control EINSTEIN during class
$1F77	Place an interruptible subcommand routine address into a character's buffer
$1FA0	Make a teacher tell the kids to sit down
$2005	Write a message into the text graphic buffer
$2043	Print a lines message or safe combination letter above a teacher's head
$20F5	Insert a pixel column into the text graphic buffer
$212A	Clear the text graphic buffer
$213B	Centre the text in the text graphic buffer
$2156	Insert a font character bitmap into the text graphic buffer
$217E	Generate the character codes of the digits of a number
$2241	Prepare a question and answer
$2387	Make a character speak
$246B	Slide a message character into the speech bubble text window
$24A7	Insert a pixel column into the speech bubble text window
$2500	Prepare a message telling the kids to go to a certain page in their books
$253E	Generate a random value in a given range
$2552	Make a teacher give lines to EINSTEIN or the boy he's telling tales on
$2573	Print the lesson
$2620	Print the score, lines total or hi-score
$267A	Make ANGELFACE throw a punch (1)
$2696	Make ANGELFACE throw a punch (2)
$26E0	Make ANGELFACE finish punching or BOY WONDER finish firing his catapult
$26EF	Check whether ANGELFACE is touching ERIC
$270D	Make ANGELFACE hit now and then
$2745	Deal with a teacher who has found the truant ERIC
$2757	Make a teacher tell ERIC to go home, and end the game
$277D	Make MR WACKER give ERIC 2000 lines
$2797	Make the stampede leader trip people up on the way to a random location
$27AB	Make a character walk up and down a few times or until a certain time
$27D2	Check whether anyone was or can be punched by ERIC or ANGELFACE
$284F	Make MR WACKER run to a given location
$2865	Place a continual subcommand routine address into a character's buffer
$2873	Make a little boy trip people up
$2885	Make a little boy find and follow little boy no. 1
$28AB	Make BOY WONDER write on a blackboard
$28BC	Make little boy no. 10 give ERIC a message
$290F	Deal with ERIC if he's being spoken to by little boy no. 10
$292F	Generate a safe combination code
$298B	Make a stricken teacher reveal his safe combination letter
$29C8	Check whether a character has been hit by a pellet or a stampeding boy
$2A43	Deal with a character who has been knocked over
$2A99	Make a character find ERIC
$2AAA	Set MR CREAK's birth year
$2AF9	Raise the signal for a certain event and move to the next command
$2B0D	Lower the signal for a certain event and move to the next command
$2B21	Make BOY WONDER fire his catapult (1)
$2B3F	Make BOY WONDER fire his catapult (2)
$2B52	Make BOY WONDER fire his catapult (3)
$2B9F	Make BOY WONDER fire his catapult (4)
$2BB0	Check whether a shield has been hit or jumped up to
$2CA5	Make BOY WONDER fire his catapult now and then
$2CD9	Initialise interrupts, screen memory and page 0
$2D18	Page out the KERNAL ROM at $E000-$FFFF
$2D1F	Set pointers to screen bitmap and colour information
$2D3E	Set standard bitmap mode
$2D47	Initialise the game status buffer
$2DAD	Clear the screen
$2DCB	Initialise colour information
$2E05	Clear page 0
$2E13	Prepare for a new game or demo mode
$2EE6	Get the screen bitmap and colour information addresses for a play area tile
$2F20	Draw the Skool Daze logo
$2F56	Draw the score box
$2F8C	Print the play area tiles in a single column of the screen
$2FB6	Move a column of screen tiles left or right
$3012	Bring the skool (or a blank screen) into view
$302A	Initialise voice #3
$3047	Initialise speech bubble sprites
$3072	Shift the play area window left
$3113	Shift the play area window right
$31B6	Raise the signal for an event
$31C4	Lower the signal for an event
$31D2	Check whether a signal has been raised
$31DF	Pause briefly
$31EA	Update the display
$322E	Update the SRB for a character's current animatory state and location
$3279	Copy a character buffer into page 0
$3326	Print a play area tile
$33BF	Restore a character buffer from page 0
$34B5	'A' pressed - down
$350B	'Q' pressed - up
$3558	'O' pressed - left
$359E	'P' pressed - right
$35EF	Move ERIC from the midstride position
$364E	Turn ERIC round
$365C	Move ERIC midstride
$3687	'S' pressed - sit/stand
$36E3	Update the SRB for a single character cell
$3724	Set up sprites #1-#5
$379F	Prepare sprites #0-#6 for the speech bubble with the lip on the left
$3805	Prepare sprites #0-#6 for the speech bubble with the lip on the right
$3868	Copy the text graphic buffer to the screen
$38AC	Back up sprite information
$38EF	Restore sprite information
$392D	Clear all the signal flags
$3940	Read the keyboard
$39C7	Interrupt routine
$3A90	Update colour information for the safe or a flashing shield
$3AB4	Move the next character
$3AD5	Change the lesson
$3B46	Select a special PLAYTIME occasionally
$3B5E	Move the current character
$3BE7	Collect the next byte from a command list
$8FE8	Wipe a character's name
$91E8	Move sprites #0-#6 left by 64 pixels (2)
$92E8	Move sprites #0-#6 left by 64 pixels (3)
$93E8	Move sprites #0-#6 right by 64 pixels (2)
$94E8	Move sprites #0-#6 right by 64 pixels (3)
$95E8	Check the x-coordinate of the leftmost section of the speech bubble (1)
$96E8	Make the character who is currently speaking stop speaking (1)
$97E8	Make the character who is currently speaking stop speaking (2)
$9868	Move sprites #0-#6 right by 64 pixels (1)
$9877	Enable sprites #0-#6
$98E8	Move sprites #0-#6 left by 64 pixels (1)
$98FB	Check the x-coordinate of the leftmost section of the speech bubble (2)
$B940	Initialise voices #1, #2 and #3 for the theme tune
$B9A0	Initialise voices #1, #2 and #3 for the 'Got all shields' tune
$BA00	Play the theme tune
$BA48	Play the 'Got all shields' tune
$BA90	Initialise the tune buffer
$BAA3	Collect a byte from a tune data table
$BAB4	Tune-playing interrupt routine
$BD00	Manage sound effects
$BE09	Change the characters' names if required
$BFF5	Write a message into the text graphic buffer and centre it