BIOS / Int / Int 15 / 4F


    INT 15 - OS HOOK - KEYBOARD INTERCEPT (AT model 3x9,XT2,XT286,CONV,PS)

Input			Output
AX	4Fh	Scan Code		Scan Code	AX
BX					BX
CX					CX
DX					DX
CF	Set		Clear if scan code not to be used		CF

Note:   Called by INT/09 handler to translate scan codes