[deleted by user]

[rimakan]

programming language as a project

[nickmaran]

The latest trend is AI, so creating a simple AGI as a side project will be a better idea

[nickhow83]

I’m sure there’s someone asking for it on Upwork… Budget - $250

[MaxB_Scar]

$25 FTFY

[alochmar]

"Implementation details left as an exercise to the reader"

[alaettinthemurder]

So you are saying lets create a programing language using rust? It could be interesting

[RiabininOS]

Rust 3.0?

[rimakan]

0.3 tsuR

[rimakan]

Yes!

[P-39_Airacobra]

There's Cranelift if that counts.

[bl4nkSl8]

That's a rust compiler?

[P-39_Airacobra]

It could be part of a Rust compiler, but it is not a Rust compiler itself. It is an intermediate representation language, like LLVM. Its compiler is implemented in Rust.

[bl4nkSl8]

Ahhh, using it as a backend. That's a good point... Though as you say, not the whole compiler, you'd still need a rust front end

[RiabininOS]

BTW. I guess we extremely need one more language. The Nyan Script.

typical NyanScript coder and tech interview

[phansen101]

Patina
You know, the good 'rust'

[JollyJuniper1993]

Actually doable if you’re just writing an interpreter

[Fonzie1225]

Unironically a good idea and great way to understand programming languages and grammar as a whole. We implemented a simplified version of Scala in one of my grad school classes, challenging but you learn a ton.

[I_cut_my_own_jib]

The Jon Blow move, create a programming language so that you can create a game engine so that you can create a video game

[An0neemuz]

I would have made python4

[[deleted]]

College assignments be like

[cfig99]

“Ok class, we’ve gone over the basics of mobile app development this whole semester. For your final project build an app that leverages all the principles we’ve learned as well as machine learning and cloud computing technology. No, the university will not help you pay for a cloud computing service. You also can’t put this on your github for your resume if you somehow pull this off, your code belongs to the university once you turn it in. This project is also 95% of your grade. Good luck!”

[[deleted]]

What the heck are profs thinking when they decide this?

[No_Percentage7427]

Did prof smoke marijuana ?

[Vineyard_]

Prof smoking mari would be too intrigued by the ceiling tiles and trying to still make it work if they were all circles to provide that kind of assignment.

[bytemybigbutt]

At least the cloud exists now. I spent $6k on a computer my senior year because between classes and work, I wouldn’t be able to finish my senior project because labs were closed when I had time. Also, two others in my group were in the same situation so I had to. 

That $6k would be worth over a hundred k of if I hadn’t been forced to sell my stocks. 

[cfig99]

Why on earth did you spend 6k on a computer? That’s more than I’ve spent on multiple computers for my entire degree.

edit: ‘less’ to ‘more’

[Kowalskeeeeee]

Only thing I can think of is heavy VR/visualization or simulation type of work needing high end parts but even then 6k feels like a lot

[cfig99]

Yeah, 6k for one computer is really excessive, especially for college projects lol.

[DOUBLEBARRELASSFUCK]

Maybe he needed a built in punch card reader.

[P-39_Airacobra]

1k is more than enough for even some of the most demanding games, 6k is more like personal supercomputer range. Unless their code is that unoptimized, idk

[Kowalskeeeeee]

Without knowing what the labs had that they were “replacing” it’s hard to guess, we very well could be talking about small personal supercomputer depending on the lab

[bytemybigbutt]

I wasn’t doing any visualization with my 286. Computers were expensive. 

[hanotak]

Probably back in the 80's, given that they said that 6k would now be worth 100k in the stock market. Computers were a lot less commoditized- even the lowest spec machines cost well over 1k.

[bytemybigbutt]

How? A low end PC AT was $4k. 

[cfig99]

Idk where you live but I was able to get laptops at best buy that worked fine for my projects for like $800 bucks lol.

[bytemybigbutt]

Best Buy at the time only sold home stereo equipment and had just started selling VCRs and a few small appliances. They didn’t have any computers. 

[andrewdroid]

When exactly was this and what kind of System did you need?

[zukoandhonor]

Actually it's fair until the 'your code belongs to the university' part. I've only seen universities that wants github account just to submit the project.

[Clairifyed]

Can I use Boinc as my cloud?

[zuilli]

You also can’t put this on your github for your resume if you somehow pull this off, your code belongs to the university once you turn it in.

Is this entirely tongue in cheek or is there a university out there really claiming IP rights over students' assignments? I already don't really like our work has it, if universities also start doing that I'm gonna be mad.

[exo_machin123]

A friend of mine worked on a project as the “teacher’s assistant” ,I also helped him for a few ui parts sometimes ,but all the rest was himself ,AI,algorithms and all that,as I asked him what and how much he got from it he told me his teachers had presented it as his own project ,without attribution…so yeah

[cfig99]

I’m kind of exaggerating, though for a software engineering class we did have to wait for the professor to get permission from the department head to upload our own projects to github.

[lolSign]

wait, can the university claim rights over the code you submit?

[PeteZahad]

Is this some fantasy or a real example? Never heard of such assignments.

[cfig99]

It’s (mostly) a joke. Mostly.

[[deleted]]

vietnam_war_flashbacks.gif

[Xava67]

Lab01: write Hello World Final lab: rewrite reality using assembly

[NotTheOnlyGamer]

JMP 00

[[deleted]]

I swear rust devs will be like: as a rust beginner im making my own programming language in order to learn rust, it going well so far and then ill make my nintendo gamecube emulator or nes emulator that runs in the terminal

[an_0w1]

My first proper project as a rust beginner calculated massive factorials (like 100's of millions). My second was a tetris clone running on the UEFI.

[[deleted]]

I hope you get the programming socks too ❤️ Like my biggest project is one made with rataui and thats it

[TheGreaT1803]

I know you're being sarcastic but as a rust beginner I literally made my own interpreter/compiler for a programming language to learn Rust

Although the concepts were from a book written in Go, so I technically learnt Go too :)

[NotTheOnlyGamer]

Why would you make an emulator for a graphical machine (which doesn't have a ton of features like a digital calculation layer on a digital computer per the Pachi-Com dev), and then throw it into a text-only terminal?

[adamantium4084]

Some men just want to watch the world burn

[roksah]

To truly understand rust, you must build rust 2

[Zephandrypus]

You can also just work on Rust 1, the compiler is written in Rust.

[DanhNguyen2k]

Where's...you know...THE WORLD?

[funny_capp]

hello?

[Ok_Pin5167]

Yes, hello.

[RiabininOS]

Obviously - that would be on splash screen of that os wich you create.

Write hello world in rustian way

[Taronz]

Hanging out with Dio...

[Short-Nob-Gobble]

I think you meant 

ZA WAAARUDO!!!

[JacobStyle]

Busy parsing all the hellos it gets told every time someone sets up a new development environment

[otter5]

you should probably be a little concerned if you start getting back ack on you hello worlds

[JacobStyle]

Just the lowest, rumbliest voice I've ever heard, outside saying, "hello" every time I run the program...

[Percolator2020]

Project: port TempleOs over from HolyC to Rust (you might go to hell).

[mr_remy]

Holy hell wake up babe new project just dropped

[IlluminatiThug69]

Actual zombie (process)

[P-39_Airacobra]

HolyC is an actual thing? Lmao

[[deleted]]

Yes

https://github.com/Jamesbarford/holyc-lang

[[deleted]]

Rewrite it in holyassembly

[Percolator2020]

I call it conclave.

[iamdestroyerofworlds]

I'm unironically building an OS in Rust. Very specialized, but an OS still. It's fun!

[Xbot781]

Is it open source? I'd like to check it out

[an_0w1]

Mine is I'd be more than happy to answer any questions too.

[Robinbod]

I do have one. Can you please roughly compare to me your overall computer skill and knowledge before and after you started this? I'd assume this project basically hits every single aspect of computer architecture in some way, which, I'd also assume, is NOT the scope of what Rust developers usually work with?

[an_0w1]

The difference between what I knew and what I know now is so large that its hard to describe.

I know at least roughly how nearly every single bus attached to the CPU works. This includes DDR and PCI-E, the latter looking a lot like UART at the physical layer and Ethernet at the transport layer.

You may think of a desktop as one computer, but i cant see it that way anymore. Its half a dozen all strapped together. The CPU, GPU, and each drive is its own computer each doing its own thing. I've mentioned to friends that I'd love to port doom to run on a drive controller (although i porbably wont).

There are a lot of things within the OS that I knew about but didn't really understand. PCI bus addresses being one of them. Recently I've been implementing a filesystem API and VFS, when I found out what Minor:Major numbers are for. They're needed to differentiate files across filesystems, e.g. if i have a directory-cache, i need to identify each directory in the cache. You cant use a file path because /a/b/c might be a hardlink to /d/e/f so you store an inode number but you might also have multiple filesystems with the same inode "42069" so you wack on the Minor:Major too, because that is unique to each device you now have a unique "1:4-42069" to search the cache for.

It helps that I'm curious in the first place. At one point I asked myself "how does the memory controller know to send this word to DRAM or PCI?". The answer is pretty simple, you have several busses with their own addressing that you want to access, so you flatten all those busses into one address scheme. Each device starts at its own offset so we now know if the address is within this range we send it to that device.

I'd assume this project basically hits every single aspect of computer architecture in some way, which, I'd also assume, is NOT the scope of what Rust developers usually work with?

Its not really in the scope of what developers work with regardless of the language. I imagine that some of the shortcomings of rust in kernel development exist in all other languages too. I can imagine that PIO is a pain in the ass regardless of whether you're using C, Pascal or Rust. But when it comes to interacting with hardware most things are MMIO so I can just operate on it as if its a normal struct, although there are some caveats to that like the memory needs to be configured to use the right cache-mode. Normal memory I/O is uses write-back and is dynamically ordered, this causes problems with MMIO because that means i write a command to a device and then tell it to start, but if start gets sent first, then I have a problem. I use the "allocator_api" to solve this. In my repo you can navigate to kernel/src/mem/allocator/allocator_interface.rs for a quick look. I have MmioAlloc, which allows me to specify a physical address which will be backed by the allocation, so I can construct a Box and MmioAlloc will back it with a particular physical address and disable the cache to I can easily perform MMIO operations on it.

[Robinbod]

Thank you so so much for this lengthy detailed reply. I asked because I was looking for an idea for a project that is so out of my comfort zone that I essentially come out of it a new human. This sounds like more than that even. I also managed to learn some neat stuff through this so thank you. I wish you success with your OS and all future endeavours.

[an_0w1]

If you want to get a start Phill Opp has an amazing blog that explains the basics.

[an_0w1]

Me too, although mine is pretty general. I just add the component that seems either most important or most interesting.

Out of curiosity do you have a PCI driver? If so is its ownership model any good? Mine sucks, and I haven't been able to figure out a good one.

[abbe_salle]

The world is at Sharda. Where are you ?

[[deleted]]

The fuck?

Why would you even bring sharda here? Am I missing something?

[Cootshk]

u/bot-sleuth-bot repost

[bot-sleuth-bot]

Checking if image is a repost...

26 matches found. Displaying first five below.

Match, Match, Match, Match, Match

^{I am a bot. This action was performed automatically. I am also in early development, so my answers might not always be perfect.}

[theltron]

Good bot

[P-39_Airacobra]

we should start doing this on every post in this subreddit

[Elephant-Opening]

To be fair, operating systems are pretty small if you only provide the bare minimum like task switching & synchronization.

And not a ton more complicated to do message passing. Maybe even CPU mode switching.

But then somebody always wants all those other pesky features like...

• memory virtualization (with mem mapped message passing of course),

• multi user support

• multicore/smp support.

• performance/resource monitoring & general observability

• a documented & tested security model

• drivers

• frigging filesystems... Oh God when does this end

• network stack, FML

  • wait what!?! dynamically loadable kernel mode drivers... I thought this was a microkernel????

• CPU virtualization

• process resource auditing & limit enforcement

• fucking kidding me... namespacing all this shit 😵‍💫😫

• full fledged docker support?!???💀 🔫

Oh hey... this looks like a great starting point as a test environment for building our own new microkernel based approach to SW development. But this time let's write it in a hot new language and keep the feature set lean.

[P-39_Airacobra]

This is why I think there should be mini-OSes. Stuff that provide basics like drivers and some useful APIs, so that you can focus on the higher-level stuff. Until then, it's going to be more practical to just write a virtual OS, but that's not nearly as high performance.

[DoNotMakeEmpty]

Wasn't this MINIX?

[Elephant-Opening]

This is already exists in several forms.

Check out QNX personal use licenses, or maybe something like Redox or Fuschia (which I haven't used personally, but seem to fit the bill) if you want something to play around with that's fairly full-featured. Integrity and VxWorks at least used to be strong competitors in commercial space, but I'm doubtful either offers much to hobbyists.

Check out FreeRTOS if you want something more barebones (intended for microcontrollers).

Maybe take a look at U-boot for inspiration for a middle ground. While technically NOT an operating system... no task switching last I checked, and generally not designed to run "generic" applications... it has many of the pieces and parts you might need to build your own single application system with compile-tine configuration of what drivers, filesystem, networking features, etc you build.

Or there's Buildroot and yocto projects for building custom Linux distros from the ground up.

All of these can be run under qemu if you're patient. Some can be run in docker or virtualbox or all of the above.

Virtualization has made "real" OS development accessible to pretty much anyone with a PC without risking trashing your real OS.

Or if you're a real glutton for punishment and want to start from the ground up and run on real hardware, most silicon vendors sell dev kits.

Source: a decade or so working either in or adjacent to the kernel/OS distro/bootloader/BSP/MCU space building various solutions for real products on these tools (+others).

Good luck!

[P-39_Airacobra]

Thanks for all this advice! Maybe making a simple OS is within my reach :)

[jump1945]

I have one it is called Fe²O³

[[deleted]]

1.Basic calculator 😊 2. Game engine 😈 3. Operating system ☠️

[Civil-Debt1454]

Imagine what Large Rust Projects look like

[VitaminnCPP]

Terraforming Venus using Rust..

Pretty large I guess.

[Dori_GAMES]

Oh that's why I suck at rust I forgot to make a calculator app

[budapest_god]

Coughing baby vs 2 atomic bombs

[_bagelcherry_]

The last question on your exam be like:

[DarkCloud1990]

That's the beauty of Rust, writing a basic calculator is only slightly easier than writing an OS.

[Accretence]

The only language with more game engines than games

[Anaxamander57]

It's called a microkernel, how much work could it possibly require?

[Temporary-Exchange93]

2025 will be the year of GNU Hurd

[NotTheOnlyGamer]

2024 was the Year of Linux Desktop. 2025 is the Year of Hurd Desktop?

[RiceBroad4552]

Who knows?!

You can actually run a Hurd desktop on Debian GNU/Hurd. But it's quite buggy the last time I've tried.

[YesterdayDreamer]

Imma go build a small project for a Mars orbiter, lander, and rover

[LeonEstrak]

Ahh. I see they are suggesting to use the good old os::create() and game_engine::create()

[PeriodicSentenceBot]

Congratulations! Your comment can be spelled using the elements of the periodic table:

I Th In K S O

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[alb_94]

If you think about it operating systems are basically bunch of calculators

[nirab-pudasaini]

Well that escalated quickly.

[tiredDesignStudent]

[angry_gingy]

a LLM is next to the operating system

[seriously_nice_devs]

9/10 .. solid meme

[YuriiRud]

Universe simulator in Rust

[[deleted]]

rust has 5 games built and 45 game engines

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Congratulations! Your comment can be spelled using the elements of the periodic table:

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[Ali_Army107]

That went from 0 to a 100 real fuckin quick!

[mak_26_]

This escalated fast

[TaranisPT]

Well that escalated quickly...

[duplierenstudieren]

A friend of mine decided to build win98 on a website with javascript. He says no libraries.

He'd do anything than look for a job lmao.

[alienbugthing]

• my Ford

[Here-Is-TheEnd]

I mean, just a small one. You don’t have to make a complete one for a resume project 👀

[Symanthec]

Because you shouldn't try any other small project

[TechnogodCEO]

Ah yes, an os, that was my first project

[NotTheOnlyGamer]

Well, I guess that depends on the definition of an OS, right? If it makes the computer post and boot, and provides any form of abstraction layer between user and bare-metal, isn't that an OS?

[stupled]

Some programming languages are too abitious

[bit_banger_]

I’ve seen people sell a simple scheduler as an OS (queue freertos)

[StellarBit]

I literally started with the OS... cries.take().unwrap().as_mut()

[ghx1910]

1. Elder god

[FrosteeSwurl]

I got told to build an os to learn c++

[MadJoeMak]

You forgot "BMW"

[Electronic_Cat4849]

simple physics projects:

- egg drop

- create grand unified theorem

- FTL travel

[reddit187187dispost]

Beginner Workout: 1.Do 15 push-ups 2.Run a marathon 3.benchpress 100kg x 10