Routines
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958E: Describe a room
Prints the full description of room A. The message used for this is 'you are <preposition> ...' at AEEE, and before printing it this routine writes the room's preposition - OUTSIDE, INSIDE, IN, ON or AT, chosen by bits 1-3 of the room's first byte from B970 - into the message itself, at AEEF. So the text of the message is changed each time a room is described. 95B9 then does the rest.
Input
A Room number
958E PUSH AF
958F CALL $9B0C IX = the room's record
9592 LD A,(IX+$00) Bits 1-3 of its flags choose the preposition
9595 AND $0E
9597 LD E,A
9598 LD D,$00
959A LD HL,$B970 HL = the table of prepositions
959D ADD HL,DE
959E LD E,(HL) DE = OUTSIDE, INSIDE, IN, ON or AT
959F INC HL
95A0 LD D,(HL)
95A1 LD HL,$AEEF Write it into the message "you are ..." (high byte first)
95A4 LD (HL),D
95A5 INC HL
95A6 LD (HL),E
95A7 POP AF
95A8 LD HL,$AEEE HL = that message
This entry point is used by the routine at 9589.
95AB PUSH IX
95AD PUSH IY
95AF PUSH BC }
95B0 CALL $95B9 Describe the room
95B3 POP BC
95B4 POP IY
95B6 POP IX
95B8 RET
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