BIOS / Int / Int 15 / 85


     INT 15 - OS HOOK - SYSTEM REQUEST KEY PRESSED (AT,XT2,XT286,CONV,PS)

Input			Output
AX	85h	0=Press, 1=Rel	Status	AX
BX				BX
CX				CX
DX				DX
ES:DI			Set on Error	CF

Note:   Called by keyboard decode routine