| Routines

63403: Initialise and execute an interruptible subcommand

Used by the routines at 25307 (to activate the sniper) and 63304 (to make a character start walking up or down to his next walkabout destination).
Input
BC | Interruptible subcommand routine address (25118, 31319 or 63209)
H | Character number (215-229)
63403 | PUSH BC | Push the interruptible subcommand routine address onto the stack in preparation for an indirect jump
63404 | LD L,14 | Copy the interruptible subcommand routine address from BC into bytes 14 and 15 of the character's buffer, and then jump to it
63406 | JR 63399