Int 10 Fn F7  - EGA Register Interface Library - Define Default Register   [V]

   AH = F7h
   DX = port number
      Pointer/data chips
         00h CRTC (3B4h mono modes, 3D4h color modes)
         08h Sequencer 3C4h
         10h Graphics Controller 3CEh
         18h Attribute Controller 3C0h
      Single registers
         20h Miscellaneous Output register 3C2h
         28h Feature Control register (3BAh mono modes, 3DAh color modes)
         30h Graphics 1 Position register 3CCh
         38h Graphics 2 Position register 3CAh
   ES:BX -> table of one-byte entries, one byte to be written to each
        register

Note:  the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
     compatibility box, and others

See Also: AH=F6h