Routines
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9BCD: Is the actor holding the target?
Returns with carry set if the target ($B5D9) is held by the actor, directly or inside something the actor holds. The entry at 9BD0 does the same for object A. An object of $FF counts as held.
Output
F Carry set if held
9BCD LD A,($B5D9) A = the target of the current command
This entry point is used by the routines at 8FE0, 946F and 9686.
9BD0 LD HL,$B5DB HL = the address holding the current actor's number
This entry point is used by the routine at 8C75.
9BD3 CP $FF Is there no target at all ($FF)?
9BD5 SCF If so, treat that as "yes, held" (set the carry flag), since there is nothing to fail the test
9BD6 RET Z
9BD7 PUSH IX Save the caller's IX
9BD9 CALL $9BDF Is the target held, directly or indirectly, by whichever object's number is stored at HL?
9BDC POP IX Restore the caller's IX
9BDE RET
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