How is WASM cross-platform when ASM is not?
- WebAssembly is like Assembly, except that
- it runs cross-platform
- it runs isolated
- it runs on browsers
- But how is WASM fast and cross-platform simultaneously?
- Does it pack multiple precompiled binary executables for multiple CPU vendors, like Apple's Universal Binary?
- But then whenever a new type of CPU gets announced, they wouldn't be able to run existing WASMs
- WebAssembly's runtime environments (RE) are low-level virtual stack machines (akin to JVM or Flash VM)
- Seems like WASM is closer to intermediate Java Byte Code instead of the genuinely low-level Assembly.
- But then, why is it faster?
- JS Interpreter can skip the parsing
- It can ship in a much more compact file format
- Is WASM only creating intermediate bytecodes from existing C/C++/Rust codes, just like Java JVM, not compiling to bare metal?
- What is the relationship between WebAssembly and Assembly?
- Does WASM borrow any idea, technology, or philosophy from Assembly?
- "WebAssembly." Wikipedia, Wikimedia Foundation, 9 Sept. 2022, en.wikipedia.org/wiki/WebAssembly. Accessed 20 Sept. 2022.