Copy array from round buffer with memcopy()

Since I started to work with embedded systems I had to start thing about pointers... A subject foreign in my previews Java development. Bellow is a small spinet of my code to copy arrays with pointers. Also the use of some Microblaze functions use are shown...

void BufferMemoryCopy(void* dest, GPS_BUFFER* buff, u16 buff_offset, u32 size)

{

// Microblaze -- typedef Xuint16 u16;

u16 pos = (buff->Tail16 + buff_offset) & GPS_FIFO_MASK; // Fifo mast is used in roun buffer

       

if ((pos + size) <= GPS_FIFO_SIZE)

{

        memcpy(dest, &buff->Buffer[pos], size);

}

else

{

memcpy(dest, &buff->Buffer[pos], GPS_FIFO_SIZE - pos);

memcpy(dest  + (GPS_FIFO_SIZE - pos), &buff->Buffer[0], size - (GPS_FIFO_SIZE - pos));