Hi, I read in the asm.js specs that:
As an example of the former, if we have an Int32Array <https://developer.mozilla.org/en-US/docs/JavaScript/Typed_arrays/Int32Array> view of the heap called HEAP32, then we can load the 32-bit integer at byte offset p: HEAP32[p >> 2]|0 The shift converts the byte offset to a 32-bit element offset, and the bitwise coercion ensures that an out-of-bounds access is coerced from undefined back to an integer. I understand that performing a bitwise operation will perform an integer coercion but why do we shift it 2 bits for a 32bit integer? Similarly, I notice that we shift it by 1 bit for a 16 bit short in cpp. Doesn't a shift of 2 bits divide the value of p by 4? -- 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.
