INT 2F C - NDOS - AWAITING USER INPUT                                           
	AX = E44Eh
	BX = condition
	    0000h NDOS is ready to display prompt
	    0001h NDOS has displayed the prompt, about to accept user input
Return: handler must preserve SI, DI, BP, SP, DS, ES, and SS
SeeAlso: AX=E44Dh