I want to ask, what should i do if i want write smth like:
int size = 111;
EM_ASM(
Module['size'] = size;
);
I didn't understand it(
On Tuesday, November 19, 2013 4:39:30 AM UTC+4, Alon Zakai wrote:
>
> We have had partial support for
>
> asm(" .. some js ..")
>
> for a while, but it's always been tricky to use because of gnu asm syntax
> (comments, etc. are all different than JS). We have also had EM_ASM which
> is simpler,
>
> EM_ASM(
> ..some js..
> )
>
> but it did not support input and output arguments. There are now versions
> that do support input and output,
>
> int x = EM_ASM_INT({ .. some js .. })
>
> and arbitrary numbers of input arguments work too (called $x in the code,
> starting from $0)
>
> int y = EM_ASM_INT({ ..use $0, $1 .. }, arg1, arg2);
>
> and also a version EM_ASM_DOUBLE which returns a double value. For more
> details see emscripten.h.
>
> Note that this does not get expanded out inline directly. Instead we store
> the code as a string on the heap, and call a C method to execute it. The
> reason for that is to keep the compiled code guaranteed to validate as
> asm.js for performance. But there is some call overhead, so in an inner
> loop there might be a cost. Otherwise you don't need to be aware of that
> implementation detail.
>
> Hopefully this will provide most of what people need in terms in inline
> js. Thoughts, feedback are welcome.
>
> - Alon
>
>
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