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63386: Initialise a cat's interruptible subcommand
Used by the routine at 63530. Places the address of the interruptible subcommand routine at 63558 into bytes 14 and 15 of the cat's buffer, and then jumps to it.
Input
BC 63558
H 218 (Cat)
63386 LD L,14 Copy the address of the interruptible subcommand routine at 63558 into bytes 14 and 15 of the cat's buffer
63388 LD (HL),C
63389 INC L
63390 LD (HL),B
63391 LD A,H Save the character number in A briefly
63392 POP HL Drop the return address from the stack
63393 PUSH BC Push the address of the interruptible subcommand routine onto the stack
63394 LD C,L Set BC to the original return address, and point HL at byte 8 of the cat's buffer
63395 LD L,8
63397 LD B,H
63398 LD H,A
This entry point is used by the routine at 63403 with an interruptible subcommand routine address in BC, and HL pointing at byte 14 of the character's buffer.
63399 LD (HL),C Set the address of the character's primary command routine or interruptible subcommand routine
63400 INC L
63401 LD (HL),B
63402 RET
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