Function GetVsyncCounter

Prototype	u16 GetVsyncCounter(void);
Description	Gets the vertical sync counter. This value is incremented by the kernel on each vertical sync (60hz). Can be used for timeout functions, or to keep track of world time in a game.
Parameters	None
Returns	u16 containing the vertical sync counter value
Video Modes	N/A
Since	2/7/2015

Example:

   // Set variable expiration for 2 seconds (120 frames) in the future
   uint16_t expiration = GetVsyncCounter() + 120;
   ...
   ...
   if (GetVsyncCounter() == expiration)
     // do something when the timer expires