Everything in the room: 56 records of 32 bytes. The first four have fixed jobs -- the robot's legs and top, and two for what lies in the room from the table of places (PLACES) -- and the other 52 are the room's, filled by the builder (BUILD_ROOM). The main loop (AFTER_GAME) runs every record's update routine once a turn, in order, empty ones included. In the scene after a game the same records hold the scene's pieces (SET_UP_SCENE).

A record is Knight Lore's 32 bytes. +0 the graphic, which picks the update routine (UPDATES) and the sprite (GRAPHICS): 0 an empty record, 1 one to be rubbed out and emptied when next drawn. +1 +2 +3 U, V and Z. +4 +5 +6 the half-sizes in U and V and the height. +7 flags: bit 0 in a doorway, bit 1 out of the collision tests, bit 2 can be pushed and rides what it stands on, bit 3 may use doorways (the legs), bit 4 to be drawn this turn, bit 5 moved: wipe it and copy it to the screen (SET_WIPE_AND_DRAW_FLAGS sets both), bit 6 mirrored, bit 7 upside down. +8 the room. +9 +A +B the step in U, V and Z this turn.

+C: bits 0-2 the move was stopped in U, V, Z -- bit 2 either way, standing on something or bumping something above -- bit 3 jumping, bits 4-7 turns of walking in after a doorway. +D: bit 7 kills what it moves into and bit 5 kills what touches it (SPIKES sets both), bit 6 killed, bit 3 landed on, by the robot or a mover of graphics 16-47, bit 0 just put down (a valve reads it, LOOSE_VALVE); bit 2 is a kind's own (a dropping thing falling, a lift's direction), and on the legs bits 1-2 keep his turning. +E +F the player's nudge from a doorway; +F is also a dropping thing's "was standing" (THUD_ON_LANDING) and a scene tool's steps (SCENE_TOOL). +10 +11: for what lies in the room from the places, the address of its place (FIND_SPECIAL_OBJS_HERE); for other kinds their own counters and states, described with each update routine (in the robot's records and the start records, START_LEGS, the real graphic kept while he is appearing; a pacer's saved step, a leaper's height, a mouse's turns, a scene piece's colour ...). +12 +13 the drawing nudge in pixels (DRAW_AT_L16_D9 and the entries beside it). +14 to +17: no instruction was found using them. +18 +19 the sprite's width in bytes and height in rows as drawn; +1A +1B its pixel x and y, counted up from the bottom -- in the scene after a game set directly, as the scene is not projected (SET_UP_SCENE); +1C to +1F the same four as they were before this turn's update (the main loop, AFTER_GAME).

Below the game block, like the variables: the bytes the snapshot holds here are the ROM's system variables and the BASIC loader, which the game clears before it uses them (START).