INT 16 - KEYBOARD - GET KEYSTROKE                                               
	AH = 00h
Return: AH = BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. scan code
	AL = ASCII character
Notes:	on extended keyboards, this function discards any extended keystrokes,
	  returning only when a non-extended keystroke is available
	the BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. scan code is usually, but not always, the same as the hardware
	  scan code processed by INT 09.  It is the same for ASCII keystrokes
	  and most unshifted special keys (F-keys, arrow keys, etc.), but
	  differs for shifted special keys
	some (older) clone BIOSes do not discard extended keystrokes and manage
	  function AH=00h and AH=10h the same
	the K3PLUS v6.00+ INT 16 BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. replacement doesn't discard extended
	  keystrokes (same as with functions 10h and 20h), but will always
	  translate prefix E0h to 00h. This allows old programs to use extended
	  keystrokes and should not cause compatibility problems
SeeAlso: AH=01h,AH=05h,AH=10h,AH=20h,AX=AF4Dh"K3PLUS",INT 18/AH=00h
SeeAlso: INT 09,INT 15/AH=4Fh