On 09.02.2013 14:40, Florian Klämpfl wrote:
Am 09.02.2013 03:13, schrieb Vittorio Giovara:
To do that we are using a tool
named 'emscripten' which takes LLVM bytecode and generates Javascript,
without affecting performance too much. Yes, we had to write a horribly
hacked converter that took the small subset of Pascal used by Hedgewars
and convert it to C (on a side node, the converter is written in
Haskell) and reimplement the RTL.
I still don't understand what's the use of generating LLVM code in
between instead of generating directly Javascript ... The process
pascal->llvm->js looks as well very fragile to me.
Having a LLVM backend would not only benefit HedgeWar's JavaScript case,
but also all others that would like to use the LLVM backend for one
purpose or the other. And in my opinion a pure JS backend would be much
harder to implement than a LLVM backend as one also needs to think about
how certain things should be implemented in JS (which the emscripten
developers already thought of).
Regards,
Sven
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