)
Values for HP 95LX error code:
 0000h	successful
 FFF1h	"E_BUSY"
 FFF2h	timeout
 FFF3h	framing error
 FFF4h	parity error
 FFF5h	overrun error
 FFF6h	"E_EMPTY"
 FFF7h	"E_CONECT"
 FFF8h	not open
 FFF9h	out of memory
 FFFAh	buffer overflow
 FFFBh	"E_NOFIT"
 FFFCh	unsupported
 FFFDh	"E_IVOPR"
 FFFEh	"E_IVCHN"
 FFFFh	"E_REOPEN"