#define USE_FIO 0
#if USE_FIO
#define IO1DIR FIO1DIR
#define IO1SET FIO1SET
#define IO1CLR FIO1CLR
#define IO1PIN FIO1PIN
#else
#define IO1DIR IODIR1
#define IO1SET IOSET1
#define IO1CLR IOCLR1
#define IO1PIN IOPIN1
#endif

stat = (IO1PIN >> 20) & 0xF0;