On Jun 23, 2011 11:58 AM, "Mike Pall" <
mikelu-1106@mike.de> wrote:
> This is the 8th beta release of LuaJIT 2.0.0.
>
> This release has two major new features: the ARM port is now
> complete and support for bytecode loading/saving has been added.
>
> Here is a link to the home page:
>
http://luajit.org/luajit.html
>
> A direct link to the download page:
>
http://luajit.org/download.html>
> And a link to the changelog:
>
http://luajit.org/changes.html
>
> What is LuaJIT?
> ---------------
>
> LuaJIT is a Just-In-Time (JIT) Compiler for Lua. It's upwards
> compatible with standard Lua 5.1 and can significantly boost the
> performance of your Lua programs.
>
> LuaJIT is open source software, released under the MIT/X license.
> LuaJIT builds out-of-the-box on most x86 or x64 operating systems
> (Linux, Windows, OSX etc.) and can be cross-compiled for embedded
> systems based on ARM or PPC/e500 CPUs.
>
> This is a BETA TEST release -- the current status and the list of
> known issues are shown here:
http://luajit.org/status.html
> Please report any problems you may find with this release. Thank you!
>
> ARM port
> --------
>
> The ARM port of LuaJIT is now complete: it requires an ARMv5/ARM9E
> CPU (or better) with software floating-point (no FPU needed). It runs
> on Linux/ARM, Android, iOS 3.0+ (iPhone/iPad), Symbian and others.
>
> Many thanks go to QUALCOMM Inc. for sponsoring the ARM port and to
> Marc Nijdam, who arranged the sponsorship!
>
> Performance of LuaJIT on ARM vs. plain Lua:
>
http://luajit.org/performance_arm.html>
> Cross-compile instructions for Android and iOS:
>
http://luajit.org/install.html#cross
>
> Bytecode loading/saving
> -----------------------
>
> A corporate sponsor who wishes to remain anonymous has sponsored
> the work on bytecode loading/saving.
>
> The LuaJIT bytecode format is portable and ~40% smaller than Lua
> bytecode. The LuaJIT bytecode loader is 10x faster than the Lua
> bytecode loader. And LuaJIT bytecode loads 30x-40x faster than
> source code. Note that this is unrelated to the _execution_ speed
> of the code itself -- it doesn't matter how the code was loaded.
>
> The -b command line option saves LuaJIT bytecode (similar to 'luac'):
>
http://luajit.org/running.html#opt_b>
> More on bytecode compatibility and the enhanced string.dump():
>
http://luajit.org/extensions.html#string_dump>
> The second phase of the work will allow direct generation of
> native object files with embedded bytecode. These can be linked
> against an application or put into shared libraries. Work for this
> feature is scheduled for Q3/2011.
>
> What's next
> -----------
>
> A corporate sponsor who wishes to remain anonymous, has sponsored
> the port of the LuaJIT interpreter and JIT compiler to (standard)
> PowerPC CPUs, tuned for PPC/e300 cores. Work on this port will begin
> in July 2011. You can follow the progress in the git repository.
>
> --Mike
>
