INT 2F - Phantom2 v1.1+ - FUNCTION REQUEST
        AX = E101h
        BX = function mask (see below)
        CX = code for hotkey (as returned by INT 16/AH=00h) if BX bit 6 set
        DS:DX -> ASCIZ filespec if BX bit 7 set
SeeAlso: AX=E100h
Index:  hotkeys;Phantom2

Bitfields for function mask
 bit 0  record
 bit 1  play
 bit 2  QuickPlay
 bit 3  loop
 bit 4  mode display toggle
 bit 5  sound toggle
 bit 6  set hotkey
 bit 7  set filespec

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