It's the turn of one of the little girls (183-189), or one of the first 8 little boys (190-197). But if the part of the play area currently on-screen is somewhere this character never ventures into, we skip ahead to the next suitable candidate. Specifically, the following characters are skipped depending on the value of X (the leftmost column of the skool on-screen):

X	Skip
X<=72	girls 1-7 (183-189)
80<=X<=112	girls 4-7 and boys 1-3 (187-192)
X>=120	boys 1-8 (190-197)

We are deep into the boys' skool, where no girls ever set foot.

The leftmost column of the play area on screen is at least 80.

The leftmost column of the play area on screen is at least 120. Little boys 1-8 never set foot here.

The leftmost column of the play area on screen is between 80 and 112. Little girls 4-7 and little boys 1-3 never visit these parts.

We've now determined which character to move next. His character number is in A.

It's time to consider a change in walking speed. If the character is a boy or girl, decide whether they will walk or run for the next little while.

We're dealing with a human character. Bit 4 of byte 29 of the character's buffer is never set, but if it were, it would make the character run until the current command list routine has finished. Check bit 4 of byte 29 now.

Now to determine whether to move the character this time round. The answer will be yes if byte 30 (which is decremented on each pass through this routine) is even, or bit 7 of byte 29 is set (indicating that the character is either running or non-human).

The character shall be moved. From this point, the following steps are taken:

Step	Action
1	If there is an uninterruptible subcommand routine address in bytes 17 and 18 of the character's buffer, jump to it
2	If there is a continual subcommand routine address in bytes 23 and 24 of the character's buffer, call it (and then return to step 3)
3	If there is an interruptible subcommand routine address in bytes 9 and 10 of the character's buffer, jump to it
4	Restart the command list if bit 0 of byte 29 of the character's buffer is set (and carry on to step 5)
5	If there is a primary command routine address in bytes 3 and 4 of the character's buffer, jump to it
6	Remove any continual subcommand routine address from bytes 23 and 24 of the character's buffer
7	Collect the next primary command routine address from the command list, place it into bytes 3 and 4 of the character's buffer, and jump to it

The address of one of the following uninterruptible subcommand routines (or an entry point thereof) may be present in bytes 17 and 18 of the character's buffer:

Address	Description
24328	Make HAYLEY hit ERIC
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
27941	Make a boy sit still until assembly is finished
28855	Make a character open or close a door
29194	Control the bike when ERIC's not sitting on the saddle
29896	Control the descent of the water, sherry or conker
30102	Deal with a character who has been knocked over
30380	Control the flight of a catapult pellet
30643	Deal with BOY WANDER when he is firing
30739	Deal with ANGELFACE when he is hitting
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
31254	Control a mouse
53796	Make a character do nothing
62386	Control an open desk lid
63627	Control a stinkbomb cloud
63733	Make MR WACKER find a window to open after smelling a stinkbomb
63960	Control water fired from the pistol
64175	Control a watered plant

The address of one of the following continual subcommand routines (or an entry point thereof) may be present in bytes 23 and 24 of the character's buffer:

Address	Description
30555	Make BOY WANDER fire his catapult now and then
62668	Make ALBERT keep an eye out for ERIC during lessons
63455	Make ANGELFACE stalk HAYLEY
63492	Make ANGELFACE or BOY WANDER hit or fire now and then

The address of one of the following interruptible subcommand routines (or an entry point thereof) may be present in bytes 9 and 10 of the character's buffer:

Address	Description
25581	Guide a character to an intermediate destination
25656	Guide a character up a staircase
25677	Guide a character down a staircase
26639	Make a teacher wipe a blackboard
26752	Make a character write on a blackboard
27144	Make a character speak
32379	Make MISS TAKE chase ERIC (2)
61463	Make EINSTEIN speak
61595	Make a teacher find the truant ERIC
62794	Make MR WACKER find the truant ERIC

The address of one of the following primary command routines (or an entry point thereof) may be present in bytes 3 and 4 of the character's buffer:

Address	Description
25700	Make a character go to a location
25815	Make a character go to a random location
26304	Make a character find a seat
27904	Control a boy during assembly
29052	Make a character open or close a door
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
32497	Make BOY WANDER write on a blackboard
53796	Make a character do nothing
61440	Control EINSTEIN during class
61555	Restart the command list or make a teacher tell the kids to sit down
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
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
63447	Place a continual subcommand routine address into a character's buffer
63501	Restart the command list unless it's time for assembly

This entry point is used by the routine at 25492.

If we get here, that means there's no uninterruptible subcommand routine address in bytes 17 and 18 and no interruptible subcommand routine address in bytes 9 and 10 of the character's buffer at the moment. We take this opportunity to check whether a command list restart has been requested, by inspecting bit 0 of byte 29. This bit is set in the following routines on particular occasions:

Routine	Occasion
32062	MISS TAKE needs to chase ERIC out of the girls' skool
61595	A teacher must find the absent ERIC during class, dinner or assembly
62668	MR WACKER must find the truant ERIC
62770	MR WACKER must find and expel ERIC
63309	Lesson has ended

In addition, a command in the command list may have requested a restart (see 61555, 61624, 62572 and 63501).

There is no primary command routine address in bytes 3 and 4 of the character's buffer, which means it's time to move to the next command in the list.

This entry point is used by the routine at 63447.