The first 8 bytes in each set contain various bits of information about an object (e.g. room number, room co-ordinates, colour).

This set is followed by 1-3 sets of 4 bytes. For most objects this is just one 4-byte set, but some objects can have multiple states - e.g. chests can be closed or open.

Data sets are copied from here into a working room item data buffer at EB85.

Byte	Contents
1	Room number of object
2	Horizontal (X) position of object in room, in 4-pixel (half-character) steps
3	Vertical (Y) position of object in room, in pixels, from top of room
4	Item properties byte (similar to EB4E) Bit 1 (2) set = Item is not visible Bit 2 (4) set = Item/creature not subject to standard room boundary collision checks (e.g. BATS) Bit 4 (16) set = Item is being carried by servant Bit 6 (64) set = Maroc can pick up the item
5	Object state - starts at 1 for each object (e.g. chest state 1 = closed, 2 = open. Each additional state an object has is stored in an extra 4 byte set
6	Spell number (= 0 if not a spell) - spell table at 6DFC (start counting with MOVE = 0, SERVANT = 1 etc.)
7	Attribute/colour of object. If bit 4 is set, the object will flash (change colour constantly) Bits 5-7 contain the item's 'value' when trading with warlocks (see 52857)
8	Number of additional 4-byte sets for this object
9	Movement pattern byte. Used for moving room items (including set room creatures) in the routine at CBA8 Bit 0 (1) set = room item/creature has a random element to its movement Bit 1 (2) set = room item/creature will try to home in on Maroc's position Bit 2 (3) set = room item/creature is subject to usual room wall collision detection/adjustment (BATS do not have this bit set)
10	Event number for items acting on this item (e.g. for a chest, which is opened by a key)
11	Event number that this item affects (e.g. for a key, that opens a particular chest with matching event number As part of event/collision check, also used for energy-affecting objects, e.g. orbs and mushrooms. 254 = energy drain, 253 = energy replenish
12	Graphic number - offset for graphic address table at 97C3. Offset calculated using [(n-1)*2] + 97C3 A value of 124 (check at CB00) indicates the object is hidden (e.g. inside a chest) so doesn't need drawing on screen
13	ADDITIONAL STATE - ?? (seems to be 128 for healing star, 64 for spells/scrolls/coins )
14	ADDITIONAL STATE - Event number for items acting on this item (e.g. for a chest, which is opened by a key) 15 = items Maroc can pick up (I think)
15	ADDITIONAL STATE - Event number that this item affects (e.g. for a key, that opens a particular chest with matching event number As part of event/collision check, also used for energy-affecting objects, e.g. orbs and mushrooms. 254 = energy drain, 253 = energy replenish
16	ADDITIONAL STATE - Graphic number - offset for graphic address table at 97C3. Offset calculated using [(n-1)*2] + 97C3