Category: debuggers/debugging tools
INT 60 - MDEBUG - GET ADDRESS OF THE HELP REGISTERS

	AH = 01h
	DS:SI -> password or a null byte
Return: AX = return code
	    FFFEh password is invalid
	    FFFDh display mode is invalid
	    else successful
		ES:DI point to the help registers of MDEBUG
	       ES:DI-02h  -> R0 (WORD)
	       ES:DI	  -> R1 (WORD)
	       ES:DI+02h  -> R2 (WORD)
	       ES:DI+04h  -> R3 (WORD)
	       ...
	       ES:DI+0Eh  -> R8 (WORD)