I also tried to do this, and it's work: https://groups.google.com/g/emscripten-discuss/c/IocUaiwWctQ/m/ItCLe5lVDQAJ
The only problem is emscripten FS, you need keep fs state too (it might be hard). вс, 18 дек. 2022 г. в 02:45, 'Sam Clegg' via emscripten-discuss < emscripten-discuss@googlegroups.com>: > Inside the instance there are wasm globals (emscripten doesn't make heavy > use of them but they exist) and the indirect function table. > > On the JS there are a lot of potential things... but it sounds like you > are planning to avoid them so maybe it won't be an issue for you. > > On Sat, Dec 17, 2022 at 1:58 PM Steve Dekorte <st...@dekorte.com> wrote: > >> >> For my use case, I only want to use HTML/JS to start WASM and hand it a >> canvas and events. Things like i/o contexts would have to be reconstructed >> if possible. Is there anything else? >> >> On Dec 17, 2022, at 1:40 PM, 'Sam Clegg' via emscripten-discuss < >> emscripten-discuss@googlegroups.com> wrote: >> >> >> Neat! That might work for the linear memory, but as I said in an earlier >> reply there is more to the state of a running module than just its memory. >> >> On Sat, Dec 17, 2022 at 10:40 AM Steve Dekorte <st...@dekorte.com> wrote: >> >>> >>> Just for fun, I tried asking ChatGPT: >>> >>> [[Please write some Javascript code which stores the state of a >>> WebAssembly instance to a byte array.]] >>> >>> // First, create a WebAssembly instance and obtain a reference to its >>> memory object >>> const wasmInstance = new WebAssembly.Instance(wasmModule); >>> const memory = wasmInstance.exports.memory; >>> >>> // Next, create a JavaScript typed array to hold the contents of the >>> memory object >>> const memoryArray = new Uint8Array(memory.buffer); >>> >>> // Finally, use the copy method to copy the contents of the memory >>> object to the typed array >>> memory.copy(memoryArray); >>> >>> [[Thanks. Could you also write some Javascript code which creates a new >>> WebAssembly instance and uses this byte array to restore the previous >>> state?]] >>> >>> // First, create a WebAssembly module using the WebAssembly.compile >>> function >>> const wasmModule = await WebAssembly.compile(wasmCode); >>> >>> // Next, create a new WebAssembly instance and obtain a reference to its >>> memory object >>> const wasmInstance = new WebAssembly.Instance(wasmModule); >>> const memory = wasmInstance.exports.memory; >>> >>> // Use the copy method to copy the contents of the byte array into the >>> memory object of the WebAssembly instance >>> memory.copy(byteArray); >>> >>> // Now, the WebAssembly instance has been restored to the previous state >>> >>> //...It is important to note that the byte array must be the same size >>> as the memory object of the WebAssembly instance, and it must contain a >>> valid snapshot of the state of the WebAssembly instance. If the byte array >>> is not the correct size or does not contain a valid snapshot, the >>> WebAssembly instance may not be restored correctly. >>> >>> I haven’t had a chance to give it a try yet. 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