ianopolous

JPC

Java2015–2023

ianopolous / JPC

JPC

JPC - The fast x86 PC emulator in 100% pure Java

Games & Emulation

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4Distinct people

10Mentions

0Explicit recommenders

433GitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

JPC - The fast x86 PC emulator in 100% pure Java

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.

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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, 1:49:46 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 year10 dated mentions

Observed mentions: 2015-04-05 05:06:52 UTC to 2023-12-13 15:48:29 UTC.

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.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2015	2015-01-01 00:00:00 UTC	2016-01-01 00:00:00 UTC	1	0	1
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	4	1	3
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	1	0	1
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	2	0	2
2019	2019-01-01 00:00:00 UTC	2020-01-01 00:00:00 UTC	0	0	0
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	0	0	0
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	0	0	0
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	0	0	0
2023	2023-01-01 00:00:00 UTC	2024-01-01 00:00:00 UTC	2	0	2

What Hacker News says

10 sources

cylinder714·Dec 13, 2023

https://github.com/ianopolous/JPC "JPC is a fast modern x86 PC emulator capable of booting Windows up to Windows 95 (and windows 98 in safe mode) and some graphical linuxes. It has a full featured graphical debugger with time travel mode along with standard features like break and watch points."

In The mysterious second parameter to the x86 ENTER instruction

ianopolous·Dec 12, 2023

For those interested, here is the implementation of enter for JPC emulator: https://github.com/ianopolous/JPC/blob/master/src/org/jpc/em... https://github.com/ianopolous/JPC/blob/master/src/org/jpc/em...

In The mysterious second parameter to the x86 ENTER instruction

ianopolous·May 10, 2018

On this particular thing I think the Intel docs are clear. This is where I implemented the same in JPC: https://github.com/ianopolous/JPC/blob/master/src/org/jpc/em...

In Multiple OS Vendors Release Security Patches After Misinterpreting Intel Docs

kondor6c·Mar 17, 2018

There is also the Java based "PC emulator": https://github.com/ianopolous/JPC However, development seems to have slowed down drastically.

In TinyVM – A small and easy to understand virtual machine in C

ianopolous·Aug 12, 2017

Currently I spend most of my spare time working on Peergos [0]. The remaining spare time is spent on IPFS related libraries: java-ipfs-api [1], java-multibase [2], java-multiaddr [3], java-multihash [4], java-cid [5] I ported tweetnacl from the original c to Java: java-tweetnacl [6] Before that I wrote JPC [7], an x86 pc emulator. As well as an x86 disassembler: JayD [8] An implementation of a merkle-btree for use in IPFS: [9] A JS implementation of Reed Solomon erasure codes: [10] [0] https://github.com/Peergos/Peergos [1] https://github.com/ipfs/java-ipfs-api [2] https://github.com/multiformats/java-multibase [3] https://github.com/multiformats/java-multiaddr [4] https://github.com/multiformats/java-multihash [5] https://github.com/ipld/java-cid [6] https://github.com/ianopolous/tweetnacl-java [7] https://github.com/ianopolous/JPC [8] h

Read the rest

ttps://github.com/ianopolous/JayD [9] https://github.com/ianopolous/merkle-btree [10] https://github.com/ianopolous/ErasureCodes

In Ask HN: Projects that don't make you money but you're doing it out of sheer joy?

ianopolous·May 12, 2016

Or in this case, not. https://github.com/ianopolous/JPC

In QEMU: out-of-bounds memory access issue

ingve·Jan 14, 2016

JPC seems to have moved to GitHub: https://github.com/ianopolous/JPC

In JPC: Fast x86 PC emulator in Java

ingve·Jan 14, 2016Submission

JPC: Fast x86 PC emulator in Java

41 points · Open discussion

ianopolous·Jan 14, 2016

Different, but related, is JPC [1], which has a similar graphical interface, with time travelling debugger, but which only emulates x86. Disclosure: I am the author. [1] https://github.com/ianopolous/JPC

In CPU SIM: An interactive Java-based CPU simulator for use in introductory classes

ianopolous·Apr 5, 2015

You may find this disassembler port to Java I did useful. [JayD](http://github.com/ianopolous/JayD) it's more accurate than both objdump and its source, udis86, after I used it as the base for the [JPC emulator](http://github.com/ianopolous/JPC).

In x86 Disassembly