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- Subject: Re: [ANN] Lua 5.3.0 (work1) now available
- From: Roberto Ierusalimschy <roberto@...>
- Date: Sat, 6 Jul 2013 16:41:19 -0300
> On 32 bit ARM, 64bit int is v. slow.
My machine is still a 32-bit Pentium; there, Lua with 64-bit integers
has a quite decent performance (not faster but not slower than Lua 5.2).
> #define LUA_INTSIZE 1
> #define LUA_FLOATSIZE 2
> Has this been tried?
Yes. All combinations have been tested. But in small machines, it may
be worth trying 32-ints with 32-bit floats. (The main reason Lua has
used double was to be able to exactly represent 32-bit quantities.)