MartyPC is a cross-platform emulator of early PCs written in Rust (martypc.net)
199 points by boilerupnc 18 hours ago
GloriousCow 3 hours ago
Hi, thanks for checking out MartyPC. I'm the developer if there are any questions.
indrora 2 hours ago
What's your favorite "What the FUCK were they smoking when they designed this?" moment?
AmazingEveryDay an hour ago
Many people are very angry that you used Rust. Did you expect this choice to cause such an uproar?
JoshTriplett an hour ago
Angry people gonna angry. Don't take criticism from people you wouldn't take advice from.
tensor 6 hours ago
One of the amazing things about this project is that the author built physical harnesses for real early CPUs so that he could build test suites against the real hardware and ensure the emulation is 100% correct, down to every timing and quirk of the original hardware.
aw1621107 5 hours ago
To add on top this, the author wrote multiple blog posts on their setup [0, 1, 2]. The project itself is hosted at https://github.com/dbalsom/arduinoX86
[0]: https://martypc.blogspot.com/2023/06/hardware-validating-emu...
[1]: https://martypc.blogspot.com/2023/05/exploring-dma-on-ibm-pc...
[2]: https://martypc.blogspot.com/2023/10/bus-sniffing-ibm-5150.h...
pjmlp 14 hours ago
Adlib support! At least someone else remembers it wasn't only Soundblaster.
anonzzzies 11 hours ago
All my friends had Soundblasters; I had a self soldered Covox. Fun times.
abrookewood 9 hours ago
Whaaat?? Do tell more!
anonzzzies 9 hours ago
_flux 11 hours ago
But Soundblaster came with Adlib, so surely complete support for SB should mean Adlib support as well.. ?
pjmlp 9 hours ago
Yeah and eventually Adlib was gone.
From Wikipedia,
"Not long after its introduction, Creative Labs introduced its competing Sound Blaster card. The Sound Blaster was fully compatible with AdLib's hardware, and it also implemented two key features absent from the AdLib: a PCM audio channel and a game port. With additional features and better marketing, the Sound Blaster quickly overshadowed AdLib as the de facto standard in PC gaming audio. AdLib's slow response, the AdLib Gold, did not sell well enough to sustain the company."
GloriousCow 3 hours ago
I haven't implemented the Soundblaster card yet, although it's quite high on my list of things to do.
wiz21c 8 hours ago
besides the fact that it was written in rust, rust happens to be a really nice language to write emulators, you don't have to think much about threading and not much abut memory management, rust makes that easy => you can concentrate on your pixels. Moreover LLM grasp it very well so that you can get a bit more spare time for your emulator-side-project.
It was very long since I wrote any sort of C++ and using rust was pretty refreshing.
Second "besides": marty's PC may not have a lot of breadth in terms of supported hardware, but it gets the accuracy totally right. It's a very special kind of achievement.
(I'm not a rust fanboy :-) I just appreciate the language for writing my emulator)
ranger_danger 15 hours ago
Ironically, and unfortunately, this doesn't actually emulate the FM Towns Marty (or even the regular FM Towns PC) like I assumed it would.
rrr_oh_man 15 hours ago
Doesn't seem to support non-QWERTY keboards :(
GloriousCow 3 hours ago
I've built out a full keyboard-remapping system, to support any keyboard layout. I need help building these files.
Are you using DVORAK? If you are willing to help, please open a Github issue with some info about your keyboard, and I'll build support for it.
rrr_oh_man an hour ago
Thanks! Done
teiferer 13 hours ago
But it's written in Rust! Who cares about non-qwerty!
/s
Dwedit 16 hours ago
Mysteriously, backslash has been mapped to backspace for some reason.
rrr_oh_man an hour ago
That's keyboard code [1] vs. Keyboard key [2].
[1] Physical location of a key https://w3c.github.io/uievents/#keys-codevalues
[2] Mapping of a key https://w3c.github.io/uievents/#keys-keyvalues
The naming is terrible and I have to look it up every single time
GloriousCow 3 hours ago
What keyboard layout are you using? I can't reproduce on a US layout.
Dwedit 2 hours ago
Key is Scancode 0x2B, or as a VKEY code: VK_OEM_5 (0xDC)
Javascript says the key I pressed was keycode 220 (same number as 0xDC) or key "\".
I had Tandy 1000 as the selected machine. When I look at the onscreen keyboard, I don't see a backslash key underneath backspace, but I do see one next to left shift. For keyboards that have the alternate backslash there, it is listed as having a scancode of 0x56 and a VKEY code of VK_OEM_102 (0xE2). (I haven't actually checked information specific to the actual Tandy keyboard)
datakan 9 hours ago
I don't think Backspace as a key was standard internationally until 1994. Apple still doesn't use it, just Delete.
Dwedit 7 hours ago
This is about early IBM PCs, not apple computers. And the non-working key is the Backslash key \ , not the backspace key.
unixhero 16 hours ago
Old terminals had this shenanigans going on too. Backspace was not backspace and so on
JMiao 15 hours ago
probably in the minority but i want the screeching and grumbling hard disk sounds
hggh 13 hours ago
IBMulator has HDD sounds: https://www.ibmulator.org/
chvid 15 hours ago
Almost usable on an iPhone.
GloriousCow 3 hours ago
What would you say is missing or not working well?
kuschkufan 4 hours ago
I used to have a phone like that.
benj111 8 hours ago
I assume it's called MartyPC because it Marty McFlies?
throwaway5727 11 hours ago
This comment is itself a meta comment but here we go I guess...How is it possible that half the comments in this thread are about the title itself? It’s not even a made-up title, it’s taken straight from the project’s README...I keep seeing people complaining almost aggressively that others are touting Rust as a useful tool (which, to me personally, it certainly is). Does someone have a financial stake in opposing Rust’s development, or what?
GloriousCow 3 hours ago
When I started writing MartyPC over four years ago, writing an emulator in Rust was still somewhat novel. The development of the 'egui' immediate-mode graphics framework made it possible to make one with an advanced interactive debugger.
By mentioning Rust people have been able to more easily find MartyPC as an example of how (or how not to) write an emulator in Rust.
Perhaps the tag as outlived its usefulness, especially if people find it pompous or something. I'm not trying to be Rust cultist, I swear.
tonyedgecombe 9 hours ago
I suppose it makes a change from complaining that the post was written by an LLM.
braiamp 8 hours ago
But if it's written in rust and with llm then they both implode and we get really insightful comments
BobMcBob 15 hours ago
Yet another avenue to play EGATREK in a browser. For that, its work it.
unixhero 15 hours ago
What's great about Egatrek?
EvanAnderson 14 hours ago
Oh, holy crap. I haven't thought about EGATREK in at least 30 years. I'm going to go dig it up right now. Thanks for causing me to recall that memory!
gaoheyang 11 hours ago
nice
szundi 16 hours ago
Why never seeing a title “written by C” or Java or js
pigeons 16 hours ago
"Hax – a minimalist, terminal-native coding agent written in C" https://news.ycombinator.com/item?id=49273175
but I see your point.
fukaiall 9 hours ago
I believe a true engineer should love problems not only languages. But it seems like majority of Rust devs only love the language and try to convert all the problems into Rust problems.
If you have problems in C/C++? Write Rust.
If you have problems in Python? Use Rust.
If you have an issue with your product? Rewrite it in Rust.
Is your company in pinch? Launch a new product in Rust.
If you burn your finger while you’re cooking? Write Rust.
If you have a mental problem? Read a Rust book.
You don’t have a girl friend? You have Rust next to you.
If you hate yourself? Writing Rust will solve your life problems.
ChickeNES 2 hours ago
Because people love to propagandize
tenox7 16 hours ago
The main feature of apps written in Rust is that they are written in Rust.
dosisking 15 hours ago
"It's not a feature, it's a bug"
fortran77 15 hours ago
I flag all these “written in Rust” posts.
globalnode 14 hours ago
teiferer 13 hours ago
Because their following is not cult-based.
(To clarify: I like Rust. I use it every day. But this is going too far.)
pjmlp 15 hours ago
Because they predate HN, and aren't hip languages any longer.
There was a time for CoffeeScript, PureScript, Elm, Ruby and whatever else you can think of.
Naturally Lisp has to have monthly entries.
/s
imhoguy 15 hours ago
Because nowadays "written in Rust" means "written by AI", as Java or C are not so sexy for LLMs /s
ChickeNES 2 hours ago
Not really true, I've had LLMs write hundreds of thousands of lines of C just fine, including stripping out Rust deps out of projects I use. :)
globalnode 14 hours ago
the other week i wrote a program in python, and ive been thinking of upgrading my cpp knowledge from v11, wish me luck
tonyhart7 13 hours ago
how to use this fossil computer era ????? I cant type shhiiii
rvz 12 hours ago
Written in Rust™teiferer 13 hours ago
What does the "written in Rust" contribute to the title, exactly?
hnlmorg 14 hours ago
Early PCs weren’t written in Rust.
queenkjuul 13 hours ago
Early PCs were made of steel which can rust
hnlmorg 13 hours ago
Nicely done!
pjmlp 14 hours ago
In C neither, despite urban myths.
hnlmorg 13 hours ago
Is that something people believe? I can’t say that’s a myth I’ve ever heard.
pjmlp 13 hours ago
Kudos 14 hours ago
Not specific to this project, but nowadays when I see "written in rust" I hear "written by Claude".
GloriousCow 3 hours ago
When I started this emulator four years ago, this was the first PC emulator written in Rust so it was novel.
I've heard the comments here loud and clear :) You all don't think Rust is novel anymore and I should lose that bit.
binaryturtle 13 hours ago
"cross-platform" and Rust, as advertised in the current title/link label, is incompatible for sure. Can't get that to run on my older OS X machine nor my Amiga. :)
ChickeNES 2 hours ago
Yup, I have private forks where I've had Claude/Codex rip out Rust for that reason.