Category: video
INT 10 - EGA Register Interface Library - READ ONE REGISTER AH = F0h BL = register number BH = 00h DX = group index (see #00223) Return: BL = data Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2 compatibility box, and others; it is used for software virtualization of write-only registers on an EGA video adapter, so that multiple programs may peacefully coexist without clobbering each other's display settings SeeAlso: AH=F1h"EGA",AH=F2h"EGA",AH=FAh"EGA",INT 2F/AX=BC00h