Reset

//Reset to 0x0000:
SoftReset(); 

Did Watchdog reset occur

if (ReadEventWDT())
//WDT reset has occurred

Generating Reset in Code

If you want to use your own code as an alternative to the C32 SoftReset function the following can be used instead:

void software_reset(void)
{
   int t;

   //Unlock system
   SYSKEY=0;
   SYSKEY=0xaa996655;
   SYSKEY=0x556699aa;

   //Do the reset
   RSWRSTSET=1;    //enable software reset
   t=RSWRST;          //reset the software enable bit to force the actual reset
   while(1);
}