#include "msp430x14x.h"
typedef unsigned char byte;
#define P4IN *((byte *)0x1C)
#define P4OUT *((byte *)0x1D)
#define P4DIR *((byte *)0x1E)

#define P2IN *((byte *)0x28)
#define P2OUT *((byte *)0x29)
#define P2DIR *((byte *)0x2A)

int main (void){

WDTCTL = WDTPW + WDTHOLD;
P4DIR |= 0x00;
P4DIR |= 0x04;
P2DIR |= 0x02;


//P2OUT = P2OUT | 0x02;


while(1==1)
{
  if((P4IN & 0x10) != 0)
  {
    P2OUT = P2OUT | 0x02;
  }else{
    P2OUT ^= 0x02;
  }

}

return 0;
}