"AOSP is early access to the next version of Android although it won't have the functionality and user interface of the final product," Grey said.
The emulator on 32-bit platforms isn't as good as testing code on actual 64-bit ARM hardware, but it's better than nothing, Grey said.
"Obviously it's slow ... but it's possible to complete a lot of the Linaro development," Grey said.
Intel has already demonstrated a 64-bit version of Android 4.4, but for its x86 processors. Only a handful of smartphones and tablets use x86 processors, and the Intel build is a preview release of "pre-alpha quality," according to Intel's open-source website.
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