Routines

Address	Description
5B5B	IM2 vector jump
8000	Display input options and wait to start
8069	Toggle the display on every interrupt so the selected option is flashing
808A	Blank a character on screen
8092	Print an option on the intro screen
80D1	Print a character on screen
80FF	Put a text character's attributes on screen
82A6	Check for player input
8395	Select the graphic for Monty
8452	Redraw Monty after jumping or falling
8751	Move all the nasties on the screen
8866	Draw the nasty's attributes
887D	Draw a type 1 - 3 nasty
8964	Update a type 2 (single direction) nasty
89D4	Update Monty's position
8A63	Make Monty jump
8AD3	Update Monty while jumping
8B0C	See if Monty has walked off a ladder, and if so, set some flags
8B1F	Update Monty and act on room flags
8B90	Determine where Monty can move to
8C3D	Check what attributes are around Monty
8D0F	Update the movement tables (across)
8D2E	Update the movement tables (down)
8D5F	Return the current screen address
8D7F	Play death tune
8DCD	Move a crusher
8E9B	Set the attributes for a crusher
8EDD	Animate Monty's angel as he has died
8F31	Update the moving platforms
8F9F	IM2 routine for main game
9052	Update one side of a moving platform
90A3	Update one byte of a moving platform
90A8	Animate water
90BD	Animate the shower water in room 11
912C	Animate the shower water in room 11 (2)
9148	Check that a crusher has killed Monty
917A	Make Monty climb a ladder
919D	Add value of coal to the current score
91E8	Print the score
9228	Check to see if Monty has collided with a nasty
9258	See if Monty is touching some coal and can collect it
927E	Check if Monty is touching a (non-coal) collectable item, and if so, pick it up
9298	Check if Monty has collided with a nasty that can be removed with an item
9327	Return IX pointing to the index of the nasty Monty is touching, or 0
935C	Check to see if Monty has moved near any coal, and if so, pick it up
940C	Enter a room
946E	Monty has died. Play the "death" tune and lose a life
949E	Print the number of lives on the screen
94C3	Copy the data for the current room into the working buffer
94D9	Move into a new room
952F	Put (non coal) collectable objects on screen
9551	Display the current room
9568	Pick up an item
95AE	Reset the index of the collectable item, as it was picked up
95B3	Animate the coal colours in the room
95E8	Animate an item of coal in a room.
960F	Draw the coal in the room
968D	Clear a non-coal item, as it has been collected
96AA	Refresh any coal in the room.
96D9	Animate the rolling minecart in room 10
C62A	Copy the room graphic buffer to screen so it is visible
CAD1	Display the "game won" sequence
CB03	Print a message
CB15	Scroll a line of the message
CB35	Print a character in a message
CB63	Move a line of a message upwards
CB93	Run one frame in the first (outdoor) room
CD26	Convert a sprite ID to a graphic offset
CD41	Display the first (outdoor) room
CDC4	Monty has grabbed the bucket - start the miner chase
CDEF	Interrupt routine for first room
CECD	Unused
D254	Copy the screen to storage buffer
D260	Save game to tape
D290	Main entry point
EBE0	Print an animinated object on screen
EC6F	Shift a sprite to the right and copy it into a working buffer
ECA2	Shift a sprite to the left and copy it into a working buffer
EF2E	Animate the smoke in the start room
EF6B	Initialize smoke animation in the start room
EF7E	Set up graphics for the start room
EFBD	Draw static UDGs on the start room
F64D	See if Monty has picked up enough coal to open a blocking wall
F6A6	Hide any blocking walls if sufficient coal has been picked up
F6FD	Erase a wall from the screen
F71A	Hide a wall after enough coal has been collected
F7C7	Perform interrupt handler background updates
F7D6	Start a new game
F817	Print the "game over" message and start a new game
F858	Print the "game won" message and start a new game
FBED	Fill a sprite with an attribute
FBFC	Fill three rows with an attribute
FC18	Convert a co-ordinate to an attribute address.
FD9B	Generate a random time for the crusher
FDD5	Print all static characters in the current room
FDEA	Print a line of characters in a room
FE41	Print a character in the room
FE8F	Convert a screen address to a buffer address and store it
FEA2	Check the attribute at the current position matches the "moving" type
FEC0	Get the attribute at the specified position
FF00	Set control option and reset IY
FF5B	Halt and run one frame in the first (outdoor) room