INT 60 u - HP 95LX System Manager - SETUP MENU
        DI = 0200h
        STACK:  2 WORDs unused dummies (for calls from high level languages)
                DWORD   pointer to menu data (see below)
                DWORD   pointer to ???
                WORD    number of items on menu???
                WORD    ???
                DWORD   pointer to ???
                WORD    ???
                DWORD   pointer to ???
Return: ???
        STACK unchanged
SeeAlso: INT 60/DI=0201h,INT 60/DI=0203h,INT 60/DI=0205h

Format of menu data:
Offset  Size    Description
 00h 80 BYTEs   first line of menu text
 50h 80 BYTEs   second line of menu text
 A0h 80 BYTEs   third line of menu text
 F0h    WORD    number of keywords
 F2h    WORD    index of currently highlighted keyword or FFFFh
 F4h    WORD    single prompt on top line if nonzero
 F6h 20 BYTEs   which line each of 20 keywords is located on
10Ah 20 BYTEs   offset of each of 20 keywords within its line
11Eh 20 BYTEs   length of each of 20 keywords
132h 20 BYTEs   first letter of each of 20 keywords
146h 20 WORDs   offsets of long prompts for each of 20 keywords