Decompiling class, DEX, JAR, and APK Files With jadx Learn how to inspect JAR and APK files and decompile class and DEX files. The post Decompiling class, DEX, JAR, and APK Files With jadx first ap...

#JVM #Java #Bytecode

Origin | Interest | Match

10 Years of Wasm: A Retrospective In April of 2015, Luke Wagner made the first commits to a new repository called WebAssembly/design, adding a high-level design document for a “binary format to serve as a web compilation target.”

Wonderful:

“10 Years Of Wasm: A Retrospective”, The Bytecode Alliance (bytecodealliance.org/articles/ten...).

On HN: news.ycombinator.com/item?id=4679...

#Internet #Web #WASM #WebAssembly #Bytecode #VirtualMachine #Mozilla #Google #JavaScript #Portability #Programming #Retrospective

#BYTECODE
aepiot.ro/advanced-sea...
aepiot.ro

🎬 This spring… the big screen goes full #bytecode.
🎄 Our #Christmas gift: the #JCON EUROPE 2026 schedule is #LIVE.
Pick your must-sees, prep your questions, and save energy for the #hallwaytrack.

Apr 20–23, #Cinedom #Cologne.
schedule.jcon.one/2026
#JCON2026 #Java

Introduction to the Chicory Native JVM WebAssembly Runtime Learn about Chicory by understanding type mapping, setting up a simple project on the JVM, compiling a basic WebAssembly module, and troub...

#Java #Java #Bytecode #JUnit #JVM #Basics

Origin | Interest | Match

Introduction to the Chicory Native JVM WebAssembly Runtime Learn about Chicory by understanding type mapping, setting up a simple project on the JVM, compiling a basic WebAssembly module, and troub...

#Java #Java #Bytecode #JUnit #JVM #Basics

Origin | Interest | Match

Introduction to the Chicory Native JVM WebAssembly Runtime Learn about Chicory by understanding type mapping, setting up a simple project on the JVM, compiling a basic WebAssembly module, and troub...

#Java #Java #Bytecode #JUnit #JVM #Basics

Origin | Interest | Match

Writing a #compiler is interesting, I'm reviving an old #typescript project where I wrote a compiler for #tinybasic. Now I'm rewriting the project in #cpp, will also #OpenSource it once it's finished.

It will first be a #bytecode #vm but eventually be turned into a native compiler

Ultima VM – Unified, Lightweight, Typed Instructions MAchine bytecode interpreter UltimaVM is a lightweight, high-performance bytecode interpreter designed for Application Virtualization. Its goal is to improve the developer experience and optimize the execution of secure, porta…

Finally had some time to update #UltimaVM presentation article with all the latest improvements. I still need to publish the latest release of the Reference Manual, but at least the article is now up-to-date:

paolozaino.wordpress.com/portfolio/ul...

#Bytecode #VirtualMachine #RISC_OS #Linux #macOS

I've written a series of blog posts, in which I write a #bytecode #compiler and a #virtualMachine for arithmetic in #Haskell. We explore the following topics in the series:

- Parsing arithmetic expressions to ASTs.
- Compiling ASTs to bytecode.
- Interpreting ASTs.
- Efficiently executing […]

Yes! #MetaIR is getting into shape! Use the #java25 Class-File-API to load #jvm #bytecode and transform it into a universal compilable graph. MetaIR is extracted from #Bytecoder and will allow to cross-conpile #Java to #OpenCL and #WebAssembly. Checkout mirkosertic.github.io/MetaIR/de.mi...!

Ultima VM – Unified, Lightweight, Typed Instructions MAchine bytecode interpreter Ultima is an efficient bytecode interpreter virtual machine (VM) designed for Application Virtualization and to improve software engineers’ development experience and optimize bytecode execut…

Added #JVM Stack Operations mapping to my #UltimaVM (see link). But I am thinking of adding indirect adressing:

PUSH.U64 [r0-r1] Push mem val from addr in r0 to addr in r1
PUSH.F32 [r0] Push val at mem addr in r0

tinyurl.com/JVMToUltimaVM
#bytecode #VirtualMachine #Coding #Programming #VM #RISC_OS

tuple example in the web-based interactive bytecode compiler.

Second: tuples!

I added a BUILD_TUPLE opcode, similar to BUILD_LIST.

Eventually I will load tuples directly into the bytecode as constants, but I didn't tackle that optimization yet.

You can try it out here: fromscratchcode.com/bytecode-com...

#python #rustlang #bytecode #buildinpublic

async/await example in the web-based Python bytecode compiler.

Two updates to the Interactive Bytecode Compiler today!

First: async/await. Building an executor for my VM was TOUGH, but the bytecode compiler updates were pretty straightforward.

You can try an async example here: fromscratchcode.com/bytecode-com...

#python #rustlang #bytecode #buildinpublic

I'm writing a series of blog posts, in which I write a #bytecode #compiler and a #virtualMachine for arithmetic in #Haskell. We explore the following topics in the series:

- Parsing arithmetic expressions to ASTs.
- Compiling ASTs to bytecode.
- Interpreting ASTs.
- Efficiently executing […]

What strikes me is how well these C patterns are abstracted in safe Rust (aside from computed goto).

For example, if I use equal-length instructions like in the Lua VM, then my instruction pointer becomes an `&[Instruction]` and I can fully(!) decode with `match chunk_rest.split_off_first()? {`.

I'm starting a series of blog posts, in which I write a #bytecode #compiler and a #virtualMachine for arithmetic in #Haskell. We explore the following topics in the series:

- Parsing arithmetic expressions to ASTs.
- Compiling ASTs to bytecode.
- Interpreting ASTs.
- Efficiently executing […]

Interactive Bytecode Compiler showing "y in z" and "y not in z" support.

And lastly: I've updated the Interactive Bytecode Compiler to include these operators.

You can try this snippet here: fromscratchcode.com/bytecode-com...

#python #rustlang #bytecode #buildinpublic

Python snippet with a decorated function

Small addition to the bytecode compiler today: decorators! (Just the basics for now...)

This just adds a LOAD_GLOBAL and a CALL around the LOAD_CONST and MAKE_FUNCTION we'd see for a basic function definition.

Try it here:
fromscratchcode.com/bytecode-com...

#python #bytecode #buildinpublic

How global variables work in Python bytecode Software mentorship for the quietly subversive.

Still talking about #bytecode in #Python!

Last week I shared a deep dive into local variables, today I want to share what I learned about global variables.

I was quite surprised by how different their implementations are, so I hope you'll find this useful.

Мечтают ли андроиды о Robolectric? Разбираем фреймворк по ...

habr.com/ru/companies/alfa/articl...

#robolectric #android #classloader #bytecode #юнит-тесты #ui-тестирование #фреймворки #тестирования

Result Details

Как работает Robolectric и почему это важно знать Представ...

habr.com/ru/companies/tbank/artic...

#android #robolectric #bytecode #kotlin #classloader

Event Attributes

Open-hearted bytecode: Java Instrumentation API What is the Java Instrumentation API? The Java Instrumentation API is part of the java.lang.instrument package and allows you to change or analyse class bytecode at runtime. It is particularly inte…

Just published something for the Core Java nerds 🤓

Built a tiny REST API using HttpServer, then injected logging behavior at runtime using a Java Agent.

🧠 100% JDK-only. No libs. No frameworks.

📖 svenruppert.com/2025/04/11/o...

#java #bytecode #instrumentation #jvm #agent #corejava

2D Byte Arrays Come to sharkC64: See Them in Action - The Oasis BBS A look at how 2D byte arrays work in the sharkC64 language, complete with a working demo and bytecode breakdown. See how this new feature expands what's possible in C64 programming.

2D Byte Arrays Come to sharkC64: See Them in Action
#sharkC64 #C64dev #RetroComputing #Bytecode #Commodore64 #RetroCoding #8bit #C64Programmer #HomebrewDev #Compiler #VintageComputing #Assembler

theoasisbbs.com/2d-byte-arra...

OW2 (@ow2@fosstodon.org) 95 Posts, 45 Following, 323 Followers · #opensource community for professional software

@ow2 has quietly released ASM 9.8 here: https://asm.ow2.io/versions.html This version of the #bytecode manipulation library now support the EA versions of #JDK25. Ok @ApacheGroovy and @rafaelcodes (aka Mr #ByteBuddy) ... you know what to do. #Java #JDK #OpenJDK #OpenSource

Exploring Function Bodies in sharkC64 – Programming Redux Video - The Oasis BBS Programming Redux breaks down Function Bodies, a new feature in the sharkC64 language, and explains how they compile to bytecode.

Exploring Function Bodies in sharkC64 – Programming Redux Video
#Commodore64 #C64 #sharkC64 #RetroComputing #C64Programming #Bytecode #Coding #OpenSource #ProgrammingRedux

theoasisbbs.com/exploring-fu...

O Java 24 traz a Class-File API! 🚀 Agora ficou fácil ler, escrever e modificar arquivos de classe com CodeBuilder, CodeTransform e outros. Ideal para ferramentas que manipulam bytecode—chega de hacks de baixo nível! #Java24 #Bytecode #JVM

Bytecode Files: The Standard Contract Between Compiler and Virtual Machine(Python Virtual Machine 4) Learn how Python bytecode files work, from creating .pyc files to parsing and executing bytecode in a virtual machine. Understand the structure and components of CodeObject and bytecode instructions.

This lesson explains the bytecode file format of Python 3.8, analyzes its structure, and loads and executes the bytecode through a virtual machine to successfully print a number. 🎉

#Python #Bytecode #VirtualMachine

open.substack.com/pub/pythonli...

Kotlin Constants in Android: Top-level vs. Companion-enclosed Photo by Louis Tsai on Unsplash B...

proandroiddev.com/top-level-constants-vs-c...

#bytecode #android #kotlin […]