Sublime FASM x86 Intel is a syntax highlighting package for intel IA32/AMD64 assembly for Sublime Text 2 with emphasis on FASM assembler.
It's based on the Assembly-x86 package from ljgago (also on github)
Install:
cd .config/sublime-text-2/Packages
git clone git://github.com/HealsCodes/Sublime-FASM-x86.git
Download and install AAAPackageDev.
In the forder sublime-FASM-x86/Syntaxes is the file Assembly x86 Intel.JSON-tmLanguage which contains the editable JSON version of the grammar. Use AAAPackageDev to regenerate Assembly x86 Intel.tmLanguage from this file.