EWWW!!! Looks like I have alignment issues (and well... my code too xD).
So I have now worked a lot on the sources to have the same types on all platforms, compile by using a single "cpp" file, etc... And I also got the emscripten options like SAFE_HEAP really to work. After executing the thing with Node.js I see that I have unaligned reads & writes. using UNALIGNED_MEMORY=1 fixes it but its slow because it generates the machinery for all loads/stores while only few of them are unaligned. Is there a way to use UNALIGNED_MEMORY while at the same time listing all the places where it actually encountered an unaligned load/store? That would be really helpful because right now I would have to find an offending line, recompile, restart, find the next offending line, etc... This would be extremely time consuimg especially since one iteration may well take over 5 minutes... Any ideas? On Wed, May 7, 2014 at 9:31 AM, Jukka Jylänki <[email protected]> wrote: > Emscripten/JS is a little endian platform, just like X86, so the same code > paths should work for JS and X86. It is ok to test for this at runtime and > do different things based on the result. Just make sure that the JS platform > correctly takes the little endian path and that should be all good there. > > > 2014-05-07 9:49 GMT+03:00 Christoph Husse <[email protected]>: >> >> Okay thanks for that input. Gonna try it today. Maybe SAFE_HEAP was off >> because I didn't get any output. >> >> Besides what you have recommended, I was working on "un-stding" my sources >> yesterday with success. There are NO standard library headers and also no >> memory allocations (everything froma static buffer) and no conditional >> compilation macros... All types are the same size and sign on all platforms >> now. >> >> Only left is the big/little endian thing. Do you know if it is okay to do >> runtime code switches based on endianess? The code needs to take different >> paths depending on endianess... Its a very low level CPU emulator, so there >> is a lot of very platform specific low-level code in it. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "emscripten-discuss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> >> For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to a topic in the > Google Groups "emscripten-discuss" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/emscripten-discuss/tOz2Yc_sLuA/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
