Used by the routines at CREATURE_UPDATE and SAVE_OBJECT_POSITIONS.

The author's MITRO, which reads as "mirror troll": the six frames at SPRITE8BB8, 12 planes, the sprites of objects in state 7 (CREATURE_UPDATE), and turned back as a room is left (SAVE_OBJECT_POSITIONS).

Then MIRROR, at offset 6, the part the three share. The direction bits in C become two facing bits in E: bit 6 says which of the two views the sprites show, bit 5 whether the view is mirrored. $08 (Y to P, or the stick right) is view 0 as drawn; $40 (Q to T, up) view 0 mirrored; $80 (A to G, down) view 1 as drawn; $04 (H to ENTER, left) view 1 mirrored. E goes to IY+$72, the copy of +$0E that CHE3D writes back, and if bit 5 of the record's +$0E says the sprites face the other way they are mirrored in place (MW). With no direction bit ($CC) nothing changes.

The sprites are shared by every creature of a kind, so a record's bit 5 is only true if one creature of the kind is about: no room has two in state 7 or two in state 11 (measured over every room). Leaving a room turns them back (SAVE_OBJECT_POSITIONS), so the next room's creature, whose record comes fresh from its template with bit 5 clear, agrees with them; the knight's +$0E is kept through a new game for the same reason (TELE, TITLE_SCREEN). Krumlinde's names are Sub_F117, Sub_F11F and Sub_F127.