How to write 'Hello World' in WebAssembly

Get started writing WebAssembly in human-readable text with this step-by-step tutorial.

WebAssembly is a bytecode format that  virtually every browser can compile to its host system’s machine code. Alongside JavaScript and WebGL, WebAssembly fulfills the demand for porting applications for platform-independent use in the web browser. As a compilation target for C++ and Rust, WebAssembly enables web browsers to execute code at near-native speed.

When you talk about a WebAssembly, application, you must distinguish between three states:

  1. Source code (e.g., C++ or Rust): You have an application written in a compatible language that you want to execute in the browser.
  2. WebAssembly bytecode: You choose WebAssembly bytecode as your compilation target. As a result, you get a .wasm file.
  3. Machine code (opcode): The browser loads the .wasm file and compiles it to the corresponding machine code of its host system.

WebAssembly also has a text format that represents the binary format in human-readable text. For the sake of simplicity, I will refer to this as WASM-text. WASM-text can be compared to high-level assembly language. Of course, you would not write a complete application based on WASM-text, but it’s good to know how it works under the hood (especially for debugging and performance optimization).

This article will guide you through creating the classic Hello World program in WASM-text.

#webassembly

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How to write 'Hello World' in WebAssembly

Android Hello World Program - Create Your First App in Android Studio

Android Hello World example in Android Studio – In this tutorial, we’ll show you how to start android development with the very first android project.

As a beginner first of all you must develop the hello world application like we do while learning a new language. This project doesn’t involve any business logic rather it ensures whether our development, as well as the deployment environment, is working. This is indeed a very simple android project and you do not really need to do a lot of coding here.

#android tutorials #android hello world #android project #android studio hello world #first android app #hello world program in android

What You Can Learn about Setting from Classic Sitcoms

Giving your novel a strong sense of place is vital to doing your part to engage the readers without confusing or frustrating them. Setting is a big part of this (though not the whole enchilada — there is also social context and historic period), and I often find writing students and consulting clients erring on one of two extremes.

**Either: **Every scene is set in a different, elaborately-described place from the last. This leads to confusion (and possibly exhaustion and impatience) for the reader, because they have no sense of what they need to actually pay attention to for later and what’s just…there. Are the details of that forest in chapter 2 important? Will I ever be back in this castle again? Is there a reason for this character to be in this particular room versus the one she was in the last time I saw her? Who knows!

Or: There are few or no clues at all as to where the characters are in a scene. What’s in the room? Are they even in a room? Are there other people in th — ope, yes, there are, someone just materialized, what is happening? This all leads to the dreaded “brains in jars” syndrome. That is, characters are only their thoughts and words, with no grounding in the space-time continuum. No one seems to be in a place, in a body, at a time of day.

Everything aspect of writing a novel comes with its difficulties, and there are a lot of moving pieces to manage and deploy in the right balance. When you’re a newer writer, especially, there’s something to be said for keeping things simple until you have a handle on how to manage the arc and scope of a novel-length work. And whether you tend to overdo settings or underdo them, you can learn something from TV, especially classic sitcoms.

Your basic “live studio audience” sitcoms are performed and filmed on sets built inside studios vs. on location. This helps keep production expenses in check and helps the viewer feel at home — there’s a reliable and familiar container to hold the story of any given episode. The writers on the show don’t have to reinvent the wheel with every script.

Often, a show will have no more than two or three basic sets that are used episode to episode, and then a few other easily-understood sets (characters’ workplaces, restaurants, streets scenes) are also used regularly but not every episode.

#creative-writing #writing-exercise #writing-craft #writing #writing-tips #machine learning

Trystan  Doyle

Trystan Doyle

1591279980

Django Framework: más allá del "Hello World"

En este live estaremos debatiendo con Eduardo Ismael de Código Facilito sobre la popularidad de este gran framework, revisando lo bueno, lo malo y algunos mi…

#hello world #django #framework #world #django framework #progaming

How to write 'Hello World' in WebAssembly

Get started writing WebAssembly in human-readable text with this step-by-step tutorial.

WebAssembly is a bytecode format that  virtually every browser can compile to its host system’s machine code. Alongside JavaScript and WebGL, WebAssembly fulfills the demand for porting applications for platform-independent use in the web browser. As a compilation target for C++ and Rust, WebAssembly enables web browsers to execute code at near-native speed.

When you talk about a WebAssembly, application, you must distinguish between three states:

  1. Source code (e.g., C++ or Rust): You have an application written in a compatible language that you want to execute in the browser.
  2. WebAssembly bytecode: You choose WebAssembly bytecode as your compilation target. As a result, you get a .wasm file.
  3. Machine code (opcode): The browser loads the .wasm file and compiles it to the corresponding machine code of its host system.

WebAssembly also has a text format that represents the binary format in human-readable text. For the sake of simplicity, I will refer to this as WASM-text. WASM-text can be compared to high-level assembly language. Of course, you would not write a complete application based on WASM-text, but it’s good to know how it works under the hood (especially for debugging and performance optimization).

This article will guide you through creating the classic Hello World program in WASM-text.

#webassembly

Aria Smith

1607333509

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