Method update

src/state.cpp:1270–1309

		}

		void update(void)
		{
			bool isPaused = EmulationPaused ? true : false;

			unsigned int curFrame = static_cast<unsigned int>(currFrameCounter);

			if (!isPaused && loadIndexReset)
			{
				ringHead = (lastState + 1) % ringBufSize;

				frameCounter = curFrame;

				loadIndexReset = false;
			}

			if (!isPaused && (curFrame > frameCounter) )
			{
				frameCounter = curFrame;

				if ( (frameCounter % framesPerSnap) == 0 )
				{
					EMUFILE_MEMORY *em = ringBuf[ ringHead ];

					em->set_len(0);

					FCEUSS_SaveMS( em, compressionLevel );

					//printf("Frame:%u  Save:%i  Size:%zu  Total:%zukB \n", frameCounter, ringHead, em->size(), dataSize() / 1024 );

					lastState = ringHead;

					ringHead = (ringHead + 1) % ringBufSize;

					if (ringStart == ringHead)
					{
						ringStart = (ringHead + 1) % ringBufSize;
					}
				}
			}
		}

		int loadStateRelativeToEnd( int numSnapsFromLatest )
		{