AGagomez314·Feb 16, 2023Submission
A Common Lisp emulator, assembler and disassembler the MOS 6502 processor
3 points · Open discussionkingcons
cl-6502
Common Lisp2013–2023
kingcons / cl-6502
cl-6502
A 6502 emulator in Lisp.
9Distinct people
10Mentions
0Explicit recommenders
290GitHub stars
What to know before exploring
What it is
A 6502 emulator in Lisp.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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Also in these discussions
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 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: 2013-07-06 14:35:27 UTC to 2023-02-16 16:29:12 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
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2013 | 2013-01-01 00:00:00 UTC | 2014-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2014 | 2014-01-01 00:00:00 UTC | 2015-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 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 | 1 | 0 | 1 |
| 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 | 2 | 1 | 1 |
| 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 | 1 | 1 | 0 |
What Hacker News says
10 sourcescl-6502 – A Readable CPU Emulator
1 points · Open discussionhttps://github.com/kingcons/cl-6502 Can the gameboy be finished using this instead of chip-8?
In Chip-8 in Common Lisp: The CPU (2016)Was it this? https://github.com/kingcons/cl-6502
In Compiler basics: Lisp to AssemblyFor more low-level Lisp see
https://github.com/kingcons/cl-6502/blob/master/README.md
And the corresponding book
http://redlinernotes.com/docs/cl-6502.pdf
In CHIP-8 in Common LispSo if you implemented a lisp on the 6502, you could run it on this emulator and then it'd be turtles all the way down?
https://github.com/kingcons/cl-6502
In Ways to implement computer languages on 6502s (1994)Lisp user here.
This reminded me of https://github.com/kingcons/cl-6502 where the opcodes are defined using a defasm macro https://github.com/kingcons/cl-6502/blob/master/src/cpu.lisp... and implemented here https://github.com/kingcons/cl-6502/blob/master/src/opcodes....
Are Lisp macros pretty much on par with Rust macros?
In A MOS6502 assembler implemented as a Rust macroIf one likes the article, as do I, there are couple of cool lisp projects related to the 6502 chip.
Brit Butler has written a 6502 emulator[0] and is now writting a NES emulator in lisp[1]
Henry baker wrote a compiler for a simple lisp named 'comfy' for the 6502 chip which intended to replace it's assembly in emacs lisp[2] which has been ported to common lisp[3]
[0]: https://github.com/redline6561/famiclom
[1]: https://github.com/redline6561/cl-6502
[2]: http://home.pipeline.com/~hbaker1/sigplannotices/sigcol03.pd...
[3]: https://github.com/jaoswald/cl-comfy-6502
In Fun with Lisp: Programming the NES (2012)That magic actually comes courtesy of [SnabbSwitch](https://github.com/SnabbCo/snabbswitch/wiki), latest project of the inimitable Luke Gorrie. Luke is also publishing SnabbSwitch semi-regularly as a [readable program](http://blog.lukego.com/blog/2012/10/24/readable-programs/).
Basically, you write markdown comments in the code and there is a Makefile that uses awk and sed to grab them out, cat some things together and pass it to an awesome LaTeX stylesheet written by Pete Kazmier. See: https://github.com/redline6561/cl-6502/tree/master/src/doc and the Makefile in the parent directory.
In A 6502 emulator in Common Lisp [pdf]The github repo : https://github.com/redline6561/cl-6502
In A 6502 emulator in Common Lisp [pdf]