markh@csd4.csd.uwm.edu (Mark William Hopkins) (04/27/91)
In article <1991Apr25.111900.4948@rci.dk> neh@rci.dk (Niels Erik Holm) writes: > mov al,0A7h ; Unknown code ???? > out 64h,al > mov al,0ADh ; Disable keyboard > out 64h,al > >and > > mov al,0A8h ; Unknown code ???? > out 64h,al > mov al,0AEh ; Enable keyboard > out 64h,al They're not used for AT's. But if they match the PS/2 functions then they mean: A7: Disable auxilliary device. A8: Enable auxilliary device. If the system's keyboard controller's incompatible, it could accidentally mean A7: Enable PC keyboard mode. A8: Disable PC keyboard mode. or who knows what.