GitHub repository: Barliesque/EasyAGAL
Primary language: ActionScript
Description: EasyAGAL is an open source ActionScript library that simplifies coding assembly language shaders.  Advantages include:  Code completion and hinting, easier-to-read code, macro libraries -- including trigonometry functions like atan2(), color blending formulas from Photoshop, and more -- ready to use in your own shaders.