One byte per item. The value is the room the item is in, 0 when the item is inactive, and the inventory room when the player is carrying it.

Bit 0 and bit 1 gate the special move out of room 55.

Bit 0 is set once the player has dug on the beach in room 60.

Cleared at the start of every pass round the game loop.

Holds the room ID to restore after pouring.

Corresponds to whether the player has already seen the image for the following rooms:

Bit	Room ID	Room Name
0	3	In the Field
1	14	The Monastery
2	28	The King's Chamber
3	39	The Oil Room
4	40	The Acid Room
5	61	The Sea Cavern
6	18	Within the Long Barrow
7	43	The Hall of the Black Knight

Bit	Room ID	Room Name
0	41	The Treasury
1	19	At the Edge of the Sea
2	N/A	N/A
3	N/A	N/A
4	N/A	N/A
5	N/A	N/A
6	N/A	N/A
7	N/A	N/A

HandlerDisplayRoomImage tests and sets the bit for the current room. The bit number is the room's place in Table_RoomsWithImages.

Holds a single byte, where each bit relates to a turn-based event. GameEventsProcessor decrements the matching counter in Counter_Unused_0 and, when a counter reaches zero, would call through Pointer_TurnBasedEvents_Jump. The shipped image leaves Pointer_TurnBasedEvents_Jump as 0 and never sets these bits.

One countdown per bit of *Flag_TurnBasedEventState. GameEventsProcessor decrements a set counter each turn. The shipped image never arms any of them.

Each set bit makes the matching item in Table_FollowingItems follow the player when the room changes (MovePlayerToRoom). Bits 0-3 default to "Beren,the King." (Beren), "Istar,the wizard." (Istar), "Haldir,the minstrel." (Haldir) and "Khadim,the dwarf." (Khadim). Bits 4-7 are never set. Handler_ChangeRoom also reads this byte when checking the ruined cottage.

Each bit of *Flag_FollowingHeroes makes the item at the same position here follow the player when the room changes.

The number of items the player is currently holding.

Save Game copies the configurable-exit bytes here before writing the tape block. The buffer is 50 bytes, ending at the current room.

The room the player starts the game in is room 3: In the Field.

BCD score. Add To Score accumulates into this word.

Pointer to the table containing the game vocabulary.

Pointer to the jump table containing turn-based events. The initial image stores 0.

Pointer to the table containing the relationships between rooms.

Pointer to the table containing item descriptions.

Pointer to the table containing all the rooms which have an image to display.

Pointer to the jump table for displaying an image relating to a room.

Pointer to the table containing room descriptions.

Pointer to the table containing item groupings.

Pointer to the object noun-phrase table.

Pointer to the character set used when expanding vocabulary tokens.

Pointer to the jump table of verb handlers.

Pointer to the configurable-exit address table.

Pointer to the jump table of scenic-event handlers. The initial image stores 0; this game ships with no scenic-event handlers.

Pointer to the verb word-token table.

Unused pointer. The initial image stores 0.

Unused pointer. The initial image stores 0.

The total number of items in the game.

The total number of objects in the game.

The total number of verb word tokens the game has.

The total number of rooms which have related images in the game. 10 room slots have a picture; the oil room and the acid room share one.

The total number of scenic events in the game. The initial image stores 0.

The total number of configurable exits in the game.

The line the player is typing. The input handler clears all 50 bytes.

The entry point writes 24 here.

The four-character word UserInput_Enter is matching. The routine fills it with ASCII spaces (32) and then copies up to 4 characters of the next command word into it.

Eight bytes assembled by PrintRoomGraphic for one character row of a room image, then passed to the ROM print routine.

One word per item. Each entry points at an 255-terminated name.

One word per room. Rooms 0 and 1 are unused. The rest point at the room text.

One word per object. Each entry points at the noun text.

Starting places for the items. GameStart copies this table to Table_ItemLocations at the start of every game.

Copied to Flags_RoomChange. Bit 0 and bit 1 gate the special move out of room 55.

Copied to Flag_BeachDug. Bit 0 is clear until the beach in room 60 is dug.

Copied to Flag_TurnScratch. Cleared at the start of every pass round the game loop.

Copied to Room_PourReturn. Holds the room ID to restore after pouring.

Copied to Table_RoomImagesAlreadySeen. No room picture has been shown yet.

Copied to Flag_TurnBasedEventState. No turn-based event has started.

Copied to Counter_Unused_0. One countdown per bit of *Flag_TurnBasedEventState.

Copied to Flag_FollowingHeroes. No following bits are set at the start of a game.

Copied to Table_FollowingItems. Default item IDs for bits 0-3: "Beren,the King.", "Istar,the wizard.", "Haldir,the minstrel." and "Khadim,the dwarf.".

Copied to Count_InventoryItems. The player starts holding 0 item(s).

Copied to LoadSaveBuffer. Initial bytes for the configurable-exit save area.

Copied to CurrentRoom. The player starts in room 3: In the Field.

Copied to Score. BCD score starts at 0.

Copied to Pointer_Vocabulary. Points at the vocabulary table.

Copied to Pointer_TurnBasedEvents_Jump. Initial image stores 0.

Copied to Pointer_RoomMap.

Copied to Pointer_ItemDescriptions.

Copied to Pointer_RoomsWithImages.

Copied to Pointer_RoomImage.

Copied to Pointer_RoomDescriptions.

Copied to Pointer_ItemGroupingTable.

Copied to Pointer_ObjectNounPhrases.

Copied to Pointer_CharacterSet.

Copied to Pointer_JumpTable_Verbs.

Copied to Pointer_ConfigurableExits.

Copied to Pointer_JumpTable_ScenicEvents. Initial image stores 0.

Copied to Pointer_VerbWordTokens.

Copied to Pointer_Spare. Unused; initial image stores 0.

Copied to Pointer_Spare2. Unused; initial image stores 0.

Copied to Count_Items.

Copied to Count_Objects.

Copied to Count_VerbTokens.

Copied to Count_RoomsWithImages.

Copied to Count_ScenicEvents. Initial image stores 0.

Copied to Count_ConfigurableExits.