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Add more docs for bytecode load/save feature.

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This commit is contained in:
Mike Pall
2011-06-14 01:58:19 +02:00
parent bcc196eed3
commit ecab831ebf
2 changed files with 24 additions and 0 deletions
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17
doc/extensions.html
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@@ -166,6 +166,23 @@ positive infinity results in <tt>"inf"</tt> and negative infinity results
in <tt>"-inf"</tt>.
</p>
<h3 id="string_dump"><tt>string.dump(f [,strip])</tt> generates portable bytecode</h3>
<p>
An extra argument has been added to <tt>string.dump()</tt>. If set to
<tt>true</tt>, 'stripped' bytecode without debug information is
generated. This speeds up later bytecode loading and reduces memory
usage. See also the
<a href="running.html#opt_b"><tt>-b</tt> command line option</a>.
</p>
<p>
The generated bytecode is portable and can be loaded on any architecture
that LuaJIT supports, independent of word size or endianess. However the
bytecode compatibility versions must match. Bytecode stays compatible
for dot releases (x.y.0 &rarr; x.y.1), but may change with major or
minor releases (2.0 &rarr; 2.1) or between any beta release. Foreign
bytecode (e.g. from Lua 5.1) is incompatible and cannot be loaded.
</p>
<h3 id="math_random">Enhanced PRNG for <tt>math.random()</tt></h3>
<p>
LuaJIT uses a Tausworthe PRNG with period 2^223 to implement