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ozaki-r
arm-js
JavaScript2013–2017
ozaki-r / arm-js

arm-js

An ARM emulator written in JavaScript

3Distinct people
3Mentions
0Explicit recommenders
284GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

An ARM emulator written in JavaScript

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year3 dated mentions

Observed mentions: 2013-06-24 01:27:44 UTC to 2017-02-05 03:35:05 UTC.

0122013-01-01 00:00:00 UTC to 2014-01-01 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 comments20132014-01-01 00:00:00 UTC to 2015-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2015-01-01 00:00:00 UTC to 2016-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments20152016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2017

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20132013-01-01 00:00:00 UTC2014-01-01 00:00:00 UTC211
20142014-01-01 00:00:00 UTC2015-01-01 00:00:00 UTC000
20152015-01-01 00:00:00 UTC2016-01-01 00:00:00 UTC000
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC000
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC101

What Hacker News says

3 sources
i wonder how performance of this (emscripten of Unicorn) compares with this much more flexible ARM emulator from a few years ago (which I am much more excited to use for things as I can easily customize the instruction fetch and memory access routines; it is even straightforward how to just hook system calls). https://github.com/ozaki-r/arm-js http://biged.github.io/arm-js/arm-js.html ^ The latter link is a demo; click "Boot" in the upper left.
In CPU emulator in web browser (Arm/Mips/X86/Sparc)
See https://github.com/s-macke/jor1k/issues/3 I tried adding an extra serial port some months ago, but I didn't succeed. It would be really cool if you made this. Here's a use case I had in mind: You go to emulator.html#http://otherwebsite.com/packages.json . The emulator's JavaScript part detects the fragment, and downloads a list of dpkg packages to the HTML5 file system. The emulator boots up, checks the HTML5 file system over 9P, and installs all those packages. Like this, you could test any binary package over the web without fear, and it would be decentralized, you wouldn't have to modify the emulator. But for jor1k, we'd need networking and 9P/HTML5 support (like in Arm-js). For Arm-js, just the networking would suffice, as the 9P support is already there. 9P in Arm-js: https://github.com/ozaki-r/arm-js#emulator-features
In jor1k: OR1000 Javascript Emulator Running Linux

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