| # SIMD.js |
| =============== |
| |
| SIMD.js has been taken out of active development in TC39 and removed |
| from Stage 3, and is not being pursued by web browsers for |
| implementation. SIMD operations exposed to the web are under active |
| development within WebAssembly, with operations based on the SIMD.js |
| operations. With WebAssembly in advanced development or shipping in |
| multiple browsers, it seems like an adequate vehicle to subsume asm.js |
| use cases, which are judged to be the broader cases. Although some |
| developers have expressed interest in using SIMD.js outside of asm.js, |
| implementers have found that implementing and optimizing for this case |
| reliably creates a lot of complexity, and have made the decision to |
| focus instead on delivering WebAssembly and SIMD instructions in WASM. |
| |
| See https://github.com/WebAssembly/simd for current development. |
| |
| This repository retains a historical snapshot of the SIMD.js specification work: |
| * The authoritative API reference documentation is generated from tc39/spec.html. You can view a rendered copy at http://tc39.github.io/ecmascript_simd/ . |
| * A polyfill at src/ecmascript_simd.js, which can't implement value semantics, but includes a correct implementation of all functions |
| * Extensive tests at src/ecmascript_simd_tests.js, which can be run using other files in src/. Benchmarks and example code live in the same directory. |
| * A presentation explaining the motivation and outlining the approach at [tc39/SIMD-128 TC-39.pdf](https://github.com/tc39/ecmascript_simd/blob/master/tc39/SIMD-128%20TC-39.pdf) |