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AX = FFB8h BH = subfunction 00h getReturn:
BL = old value of ??? CL = old value of ??? (v6.0+) CH = old value of ??? (v6.0+) nonzero set BL = new value for ??? CL = new value for ??? (v6.0+) CH = new value for ??? (v6.0+) DH = ???Return:
AL = old value replaced by CL (v6.0+) AH = old value replaced by CH (v6.0+)
Category: Resident Utilities - Int 16h - P

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