Create README.md

README.md

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+Wakestate detect v1.0 by Troed/SYNC
+
+As promised during my overscan and sync scroll talk at STNICCC 2015:
+https://www.youtube.com/watch?v=F4WJYyoF1Lk
+
+Here's a piece of code to detect which wakestate the machine is
+currently in. It's done using a specially crafted scanline which due
+to the combination and position of GLUE frequency and resolution
+register changes creates a scanline of different length in ST 
+wakestate 1,2,3,4 as well as on STE.
+
+Feel free to include _detect_ws in your own code.
+
+More information on how this works here:
+http://www.atari-wiki.com/?title=ST_STE_Scanlines