Int 10 Fn F3  - Ega Register Interface Library - Write Register Range      [V]

   AH = F3h
   CH = starting register
   CL = number of registers (>1)
   DX = group index (00h,08h,10h,18h) (see #0155)
   ES:BX -> buffer, CL bytes

Return: nothing

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

See Also: AX=7F05h,AH=F1h,AH=F2h