#Help on arm.js arm emulator software
#Help on arm.js arm emulator code

Why intrinsics? - x86 SIMD intrinsic functions are supported by all widespread C/C++ compilers РІР‚вЂњ IntelР’В® compilers, Microsoft* compiler, gcc, etc.

#Help on arm.js arm emulator code

Or, to be more precise, it was not trivial before this post publication.Р”Р„utomatic Porting Solution for Intrinsic Functions-Based ARM NEON Source Code Port to IntelР’В® x86 SIMD.Р”Р„ttached is the automatic solution for intrinsic functions-based ARM NEON source code port to Intel x86 SIMD (Intel SSE up to 4.2). However x86 SIMD and NEON instructions sets and therefore intrinsic functions are different, there is no one-to-one correspondence between them, so the porting task is not trivial.

Namely toР’В Supplemental Streaming SIMD Extensions 3 (SSSE3) for the first generation of Intel AtomР’В® CPU-based devices and toР’В IntelР’В® Streaming SIMD Extensions 4 (IntelР’В® SSE4) for the second and laterР’В generations available sinceР’В 2013. For such projects achieving the maximal performance on x86 causes the need to port ARM NEON instructions or intrinsics to Intel SIMD (SSE). NEON can be found in such famous open source projects as FFMPEG, VP8, OpenCV, etc. NEON is used by numerous developers for performance critical tasks via assembler or NEON intrinsics set supported by modern compilers like gcc, rvct and Microsoft. Modern ARM* CPUs widely used in mobile devices ( iPhone*, iPad*, Microsoft Surface*, Samsung devices and millions of others) have the 64-128bit SIMD instruction set (aka NEON* or 'MPE' Media Processing Engine) defined first as a part of the ARM* Architecture, Version 7 (ARMv7). But for some applications it is not true. In most cases porting to x86 is very easy РІР‚вЂњ the work varies from zero (for managed code and generic native code running via Houdini* binary translator) to simple code rebuild with the corresponding compiler. Currently, IntelР’В® CPUs are in smartphones and tablets while Android*, Windows* 8, and some other operating systems support both ARM and x86, increasing the developer's options enormously. Why would they like it? The answer is simple. But if and only if they would like to do it.

#Help on arm.js arm emulator software

That's why I'd like to help independent software vendors to port their products from ARM to IntelР’В® architecture. Why do I work for Intel then? Because I love Intel even more.