Add tutorial #257

README.md

@@ -138,6 +138,7 @@
 * [**C++**: _Emulation tutorial (CHIP-8 interpreter)_](http://www.codeslinger.co.uk/pages/projects/chip8.html)
 * [**C++**: _Emulation tutorial (GameBoy emulator)_](http://www.codeslinger.co.uk/pages/projects/gameboy.html)
 * [**C++**: _Emulation tutorial (Master System emulator)_](http://www.codeslinger.co.uk/pages/projects/mastersystem/memory.html)
+* [**Common Lisp**: _CHIP-8 in Common Lisp_](http://stevelosh.com/blog/2016/12/chip8-cpu/)
 * [**JavaScript**: _GameBoy Emulation in JavaScript_](http://imrannazar.com/GameBoy-Emulation-in-JavaScript)
 * [**Python**: _Emulation Basics: Write your own Chip 8 Emulator/Interpreter_](http://omokute.blogspot.com.br/2012/06/emulation-basics-write-your-own-chip-8.html)