How to use ARM Assembly code in an Android project?

android assembly android-ndk arm native-code
Phonon picture Phonon · Jun 28, 2011 · Viewed 13.5k times · Source

I'm not particularly experienced with Assembly and ARM, but I was able to write a few routines in it and I'd like to see how they run on an ARM-equipped Android device (Nexus S). What is the procedure for including an Assembly code file into an Android project? Can I only call it from native code, or from Java also?

Answer

Vikram picture Vikram · Sep 16, 2011

You can call assembly from Android using the Java Native Interface and the Android NDK.

Cedric mentions using the asm keyword, while I prefer to include assembly source code. I have posted a tutorial to do this at my site: http://www.eggwall.com/2011/09/android-arm-assembly-calling-assembly.html

You can download the source code for my example and see how it works. Once you see a functioning example, it is easy to modify it to your needs.

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