Design Your Own CPU!!!

[@DemetriYoung]

He shoulda named his core "Linus Tech Chip"

[@darkestgreenmewtwo]

Linus tech chips =]

[@TheDarkToes]

And the successor could be "linus tech chips and salsa"

[@rapidburrito]

Omg yes

[@TheGatsback]

Or "Linus Chip Tips" xD

[@prod.flyingroomba]

His thermal paste should be called linus tech salsa

[@jorno1994]

aaaaaaaaand you killed their core designer website.

[@petghost6403]

Ahh, that would explain the slowness.

[@regal_7877]

I know I'm late but is their core designer free to use? I mean I've tried it a couple of times but I just didn't end up creating an account at the end. Have you tried it? Are the generated files free?

[@takeshi7]

I did make my own CPU architecture in college on an FPGA. It was a single instruction computer. It took ~64000 instructions to do a 32 bit multiply.

[@ZILtoid1991]

I also played with the idea, but for a GPU. However I don't have any hardware (FPGA) to actually design it, also I've completely ditched the original and if I ever make a new one it'll be more close to modern shader units with some design ideas taken from Digital Signal Processors, thus naming its shader units as "VideoDSP".

[@lawrencedoliveiro9104]

Let me guess: the instruction was something like “subtract A from B and jump to C if the result is zero or negative”.

[@takeshi7]

@@lawrencedoliveiro9104 No. I knew that already existed so I did something more creative. It's just (address C) = (address A) NAND (address B). Every address is only a single bit, and address 0x0000 is always equal to zero and max address 0xFFFF is always 1.

[@takeshi7]

Also technically there was a jump function, but it was implemented as a memory mapped device in the memory space and not as an actual CPU instruction.

[@BruceHoult]

@@takeshi7 ​ @Lawrence D’Oliveiro Someone should make a programming language based on the Peano axioms.

[@TheDwobry]

I appreciate the intention of a big channel bringing forth a presentation on linuxy / open source hardware things.

[@robert3116]

As an electrical engineer in (some other part of) micro electronics (though), this makes me very positive. I recently received my TSMC MPW, which also includes some basic digital processing capabilities. However they had to be programmed from scratch. This stuff allows researchers, enthusiasts as well as large corporations to use this kind of knowledge, royalty free, without the need to 'reinvent the wheel'.

[@mormegil231]

@@pleaseelaborate3163 FPGA are not the future of SoC development. Its the present and the past. FPGA have been used for prototyping since their invention 30 years ago. The future of FPGA is that you can use also them as accelerators and co-processors in data-centers and HPC in a software/hardware co-design system. That is what Linus is referring to and what the demo is about. Also the reason they are slower has nothing to do with optimizations. They are not custom-made chip made for one architecture. They are designed to replicate any custom-made chip architecture using LUTs and DSPs. You trade off generality for some performance and visa-versa. But it is still custom hardware thus faster that running things on a GPCPU.

[@PenjaminFranklinn]

@@mormegil231 wait is this english

[@niloynill2640]

It's May 2020 and Apple is selling reinvented wheels for 700$

[@Strawberry92fs]

@@niloynill2640 and marketing them as a brand new original idea.

[@i-win]

Who needs pre-designed PCs when you can design your own?

[@Mlgtrek334]

yes

[@Drdrew1234]

people who cant..... silly me if they watch LTT they can build a pc

[@soekarakivfx]

How can you not build a pc just use yt watch a few videos and you know how to build a pc

[@fionafiona1146]

@@Drdrew1234 I can't, I'll have to ask my boyfriend, Linus is just fun to me.

[@jeeBisOkay]

@@fionafiona1146 it's a very useful thing for anyone to learn

[@ReedHarston]

I’ve been following RISC-V for a few years now and I’m super excited to see it coming along. I think it’s great that LTT is showing interest and is helping spread the word. I’ve also wanted to design my own CPU since high school so I think their website is just awesome. I hope this video helps inspire a few more tech nerds to join the ranks of electrical engineers. :)

[@WatchJRGo]

*Pulls out my trusty abacus* Design complete!

[@mayorb]

i just came from your video

[@Bereft777]

Slide ruler here saying hello get with the time!

[@WatchJRGo]

@@mayorb fancy seeing you over here! 🍻

[@WatchJRGo]

@@Bereft777 in my day I walked uphill both ways to school.

[@WarlordMoA]

Abacus would be a good name for a near technical principle program

[@funny-video-YouTube-channel]

Great for more *freedom of choices in hardware.* If this goes in the same direction as the open source, we might see very powerful SiFive CPU in a decade :-)

[@megapro125]

If this really takes of it will probably be just bought by one of the big players like intel, AMD or Qualcom etc.

[@rawdez_]

@@megapro125 This is so sad, Alexa, play Metallica - Sad but true

[@giuseppecesarano108]

@@megapro125 Qualcomm uses arm license so they got not interest in killing risc-v If risc-v goes well they can start building they processor based on that new architecture or they can get the arm license for lower price

[@gungriffon220]

@@megapro125 Uhhh, that's not exactly how this works, but okay.

[@darknessblades]

more like a fully modular customizable PC

[@emperorSbraz]

12:00 "what_is_my_purpouse?" "you pass pens to linus." "oh_my_god"

[@rojsa773]

An open-source processor is really beneficial for everyone! Much respect... Can't wait to see GNU ones :)

[@GnuReligion]

The RISC-V may become the new thing in open-sourced CPU.

[@AshesOfEther]

Umm are you sure you know what GNU is?

[@AshesOfEther]

@Z3U5 Actually GNU is an operating system by the FSF (Free Software Foundation), not a license or something like that. The GNU GPL is however.

[@riadhbenhassine4774]

@@AshesOfEther Is this a shortened GNU copypasta?

[@AshesOfEther]

Sir Yeetus Yagatus No it’s not.

[@fabiStgt]

so cool to see a more mainstream channel like LTT covering Risc V. Yeah, I know, the video is sponsored by them - but still! keep it up! :)

[@abbyck]

[@trace9130]

"Links the website address" .. "Crashes the website's CPU design tool." Lol

[@nilena8110]

My guess is that Linus dropped the server on his way out...

[@Furry_Lord]

@@nilena8110 maybe not..

[@Justin-cp1ey]

young man r/woooosh

[@njamison1000]

"What would you do to improve the architecture of modern CPU's?" Me: Add more cores. "Welcome to AMD, son. When can you start?"

[@PerKroon]

It would be much better to increase the IPC then just add cores. Personally I would add a bunch more register so the CPU can push data faster.

[@TonkarzOfSolSystem]

Hey, to be fair AMD also increased i/c by more than 40% in their most recent design. AMD would give a job to anyone who would make major improvements to modern CPUs.

[@didyliduu]

@@PerKroon Easy to say but actually go and just make ipc better is not gonna happen.

[@PerKroon]

@@didyliduu Hu? IPC are increasing with every generation of CPU so it's happening just not as fast that I (like most computer interested people) would like. Thing is that increasing core count for normal day to day use wont help much, even if you reprogram every single program to be multi threaded. Problem is diminishing returns of the gain you get by multi threading, you can even loose preference if you multi thread wrong/to much. So increased IPC and Hz are the way to increase performance for gamers and normal home users (and 99% of work related CPU loads).

[@JAN0L]

Chiplets and interposers

[@WarriorsPhoto]

I liked the first video you all did on this RISC architecture. Now, that you're showing off more of it's potential it seems like an even better option.

[@jackpatteeuw9244]

RISC is "ancient technology" by now ! The SUN Sparc chip from the 90s was a RISC chip. The Digital Equipment Corp Apha chip was not only RISC it was also 64 bits long before any other major chip vendor had implemented 64 bits. Success of this concept will depend heavily on closely integrating various peripherals to improve "hard" real time performance. Even simple tasks like accessing GPIO pins in 1 or 2 cycles or accessing on chip RAM in one cycle. Most of today's ARM based SoC can not do this.

[@WarriorsPhoto]

@Jack, I have no idea what you said. But, thank you for adding to the conversation.

[@RobinCernyMitSuffix]

@@jackpatteeuw9244 But it is/can be so much better than CISC designs. The Sun Sparc/UltraSparc was a really good architecture (and there are still thousands of servers running with it). Oh, about that "ancient technology"... You have one in your pocket... ARM is also a RISC architecture, it even is part of the name "Advanced RISC Machine" BTW. there are now powerfull ARM servers out there with a lot of PCIx lanes, cores and high clockspeed to match demand of todays server requirements.

[@jackpatteeuw9244]

@@RobinCernyMitSuffix - sitting back at 50,000' altitude, my "executive summary" is that EVERY processor is "starved" for its next instruction or data. Cache help, but they are merely a "slight of hand" and can be "dangerous" in the "hard real time" world I came from. Don't dismiss "hard real time" as a small specialty case. There are million and millions of embedded control systems that rely on meeting a "deadline". Every car/light truck built since the middle 80s has a processor that must meet "deadlines" for turn on and off the fuel injectors and ignition coils.

[@jackpatteeuw9244]

@@RobinCernyMitSuffix Re-reading the comments to this thread, I think in my comment about RISC being "ancient technology" I was really trying to say, it is "well proven" technology ! The SPARC architecture had a "twist" (that I no longer recall) that could be an issue with extremely "deep" routine/interrupt handling. The real point is, there is very little to be learned changing an ISA. ARM's "magic" is doing it at low power and I don't think the tools discussed in the video will help. The challenges theses days is speeding up the instruction that take multiple cycles (divide, floating point, stack push and pop, etc) and MOST IMPORTANTLY how do multiple core cores "share" common resources (like memory or IO pins on the chip) without causing the other CPU to "stall".

[@Nordern]

How long until someone orders a "100 core CPU"? 😂

[@laxminarayananks1520]

128 Cores you mean

[@aprofessionalateverything7585]

Technically possible, these aren't as big as intel or AMD cores. It would probably overheat, and there's probably not a lot of pure pieces of silicon out there that could be made into a functional 100 core chip.

[@alexnator]

Probably like a 30 to 50 years, or less. It all depends maybe earlier idk but my guess is 30-50

[@yScribblezHD]

Whenever software that can take advantage of 100 cores is commonplace I suppose XD

[@BothHands1]

I'm waiting for the day when cores have a letter prefix, like: New AMD Ryzen 99999999, with 4.2KCores (KiloCores?). Or a maybe (100 years) after that, GigaCores. 3.8 GigaCores for 3.8 billion of them. If we're kept alive by having our brains put in cyborg bodies, maybe we'll live to see it lol. Doubtful, but still a fun prospect of the future to dream about.

[@beanscansofbeans]

whoever does the intro captions deserves a pay raise.

[@johnjonjhonjonathanjohnson3559]

but they are probably the same person who made the video the wrong aspect ratio

[@TechDunk]

I just watched this whole video without knowing what was going on half of the time

[@hussainrajab7943]

Same

[@mynameisozymandias811]

Same, and I still don't know what this video all about.

[@andrewschwab6929]

Quantum mechanics lol

[@Felix-fz3vr]

Isnt that everyone who watches Linus?

[@aprofessionalateverything7585]

They're looking at useless CPU'S that can't be used for normal computers. Not important if you aren't planning on building a robot or something.

[@Xeno_Bardock]

You just apt-get install it. - Linus 2018. Days of Windows are limited now.

[@VioletGiraffe]

Lol. Wake me up when Linux has decent day-to-day use applications.

[@deltanedas]

@@VioletGiraffe Wake up! It's the year 2018, we use "apt" instead of "apt-get" now.

[@edentyler-moss1157]

@@VioletGiraffe It already does.

[@Amipotsophspond]

clearly you did not get the memo about the Linux foundation. it's now pronounced Linux by Microsoft, they now even own git hub too. M$ "at least we're not *as evil as google or apple!" some say torvalds is working on something that will save us all, but that's just a rumor. I bet it's going to turn out to be Doc who cyber men, it always is. *: ms might be as evil as google or greater, they are less public about it. apple is partly secretly controlled by ms.

[@leopard3993]

@@VioletGiraffe Day-to-day apps? Well , i have Steam , Chrome , Firefox , Libre Office , Android Studio , GIMP, Krita , Kdenlive and KDE Connect for mobile phone connectivity over Wi-fi on my Linux machine. What is your expectation actually? Which app can't cut "day-to-day" usage?

[@Tom5TomEntertainment]

A whole new generation of NES clones awaits!

[@RandyLott]

You can easily do that with a single off-the-shelf FPGA or CPLD.

[@ethanterrill6353]

Casually develops a cursed game on an open source cpu

[@jackbootshamangaming4541]

MiSTer would like to talk to you

[@davidcain3752]

As an electrical computer engineer it's actually nice to see real information on this channel 😋 but I get most people don't vibe with this deeper side of technology

[@FrenchysPlaysTV]

I vibe with it, I just didn't really understand a lot of it. Not until he was talking about the media syncing and increasing speeds did I realize that a lot of this, was basically using a different more risky version of silicone that's a little cheaper, and hoping to get better results with better programming... Did I get it?

[@Falllll]

I don't understand as much of it as I'd like to, but this is legitimately one of the most interesting videos they've ever posted. I hope they do more stuff like this.

[@johnfrancisdoe1563]

David Cain Yeah, though reading some of the RiscV specs, I do get some bad vibes about the architecture making certain uses deliberately hard. For example the lack of explicit delay slots and conditional execution seems to invite complex instruction reordering even at medium level performance points, while the lack of flag bits affect the efficiency of some popular algorithms.

[@davidcain3752]

John Francis Doe but the purpose of this chipset originally was the idea to have specific chips handle specific data/computation. But I definitely think if they're attempting to apply this in a more general fashion keeping up to date on some things would be necessary

[@davidcain3752]

N1ghtR1d3r ah, ive heard good things about about that school. Personally I got to university of Louisiana @laffy

[@mariogamer929]

Core designer is already offline. We did it!

[@Wild_D]

The moment he told us to click on the link, I knew we were crashing the ship

[@FailsrU]

F

[@interrobangings]

0:30 oh wow that redhead guy you gave a balloon to was SUPER cute

[@soundscape3065]

I had to actually design a CPU (well, actually, implement it on an FPGA) in college. Fun stuff

[@gregorymalchuk272]

What kind of CPU did you work with?

[@nasonaso8356]

What carreer?

[@Heckatomba]

11:01, Rambus? Now that's a name I haven't heard in a long time. A long time....

[@kavya1638]

RAMBUS was awesome! Dell PCs had it, I think only one ASUS board supported it. PS3 had it? I think it's called xdram now. Funny, there was a cartoon called Cyberchase (math educational show on PBS) but one of the villains was named RIMM, a reference to RAMBUS lol.

[@IkarimTheCreature]

it's back from the dead?

[@ceselb]

I still have a Pentium 4 1.5 Ghz with rambus stashed away. Haven't used it for 12 years or so though. That thing was great for finding obscure bugs since the memory was soooo slow. Regularly ran debug versions for a couple of friends projects.

[@DesertCookie]

2:12 Linus just casually sitting in the background.

[@calvinlucian387]

Yeah. With a giant pikachu. Cute relationship.

[@MAYERMAKES]

Ubuntu 16.04 in the backround, they know how to use their hardware

[@tanayyy2875]

Development support is great for 16.04

[@MAYERMAKES]

@@tanayyy2875 exactly, and there is so much great open source software for it. You can control any aspect of the pc (every pin) from the os.

[@virhao6961]

Only xubuntu

[@hitler69]

looks like unity which is fucking shit

[@daanwilmer]

@@hitler69 *"looks like unity which I really dislike" - there are people who do like it, even if it's not preferred graphical interface.

[@DerPlayer1237]

rgb cpu's when

[@dan_loup]

Check Monster 6502.

[@CrimsonArzuros]

So that's how it is huh? I understand everything now! *Doesn't get anything at all.*

[@cc.jsullivan]

Love it when you guys do these specials, it's like having computer chronicles in the 21st century.

[@Galaxy-456]

Don't worry my 1-core cpu I already have is good enough Linus 👌

[@HTPCYMC]

Better design a computer that’s easy to clean.

[@KouD3Graw]

Waterproof parts! Put my motherboard, GPU, Radiator, Fans, and Case in the dishwasher. lol

[@edisonlane6921]

@@KouD3Graw you sure make a video for that

[@goober8663]

everywhere. you're everywhere

[@mruler360]

But what will you use to clean off your gamer gunk? And would mother approve?

[@AP404]

1. I got a dig bick 2. You that read wrong 3. You read that wrong too 4. You check 5. You smiled 7. You are wondering why you're still this reading this 8. You saw that mistake...right?(on 7) 10. But did you see that skipped 6? 10. You checked 11. And saw you that i doubled 10 and skipped 9 12. I said saw you, not you saw 13. I also skipped 2 14. You got tricked 15. I'm just wasting your time go back to reading the comments i deserve a like and subscribe for wasting your time have a nice day.

[@Morten_S_Olesen]

KZbin really needs to add an aspect ratio feature. When uploading you choose your aspect ratio with the possibility of uploading more than one. Black bars should be no problem in this day and age. (autodetect and a setting would be nice.)

[@opaqueman5043]

Morten Skyggebjerg Olesen well aren’t you a baby back bitch, over there crying about black bars on this one video. Grow up.

[@TheAlek033]

Are you going to pay for the storage costs of additional videos?

[@kaldo_kaldo]

Honestly there's no need for that. The complete video can be uploaded and youtube can crop to fit specific aspect ratios as needed. If there's some area of the video that needs to be on screen for the content to make sense, the uploader could label that area so youtube doesn't crop it out.

[@Morten_S_Olesen]

@@kaldo_kaldo That could work too, I like it.

[@TheAlek033]

That's not how aspect ratios work m8

[@Snst-404]

Although this is a mostly pc related channel i love when linus gets down to the more technical low level stuff like this

[@gerard9502]

I spent the first minutes thinking "have you even heard about FPGA's?" until he shows us one.

[@OGBeefStew]

I'd design it to be able to play Bookworm Adventures Deluxe.

[@LukasAslan]

Is this mans a fucking dunkey?

[@DeathInstant]

Oh for a second I thought this was Bookworm Adventures Deluxe. You should play that instead.

[@halvardhaga5595]

JESUS CHRIST DUDE

[@hipocampoplatinado4448]

Have you actually played the game? You should start making in-game references to the story, characters and all that crap... Just saying.

[@w2krispy138]

Beef Stew stop commenting. The joke's gone stale

[@makeme1975]

I love the fact ubuntu is on the dudes screen behind linus with like 3 terminals open haha

[@criticalmoorhen]

I think I've seen them using i3 WM? :D

[@edentyler-moss1157]

They're hardly going to use Windows.

[@faridwakim]

He's "hacking" 😂

[@makeme1975]

Erikas Rudinskas I hadn’t actually heard of i3 before this, thanks for the introduction!

[@suborgtfo.4433]

Cool! Edit: I like how it says! Includes paid promotion in the beginning!

[@shadowblack1987]

K...

[@HontasFarmer80]

... like they'd have had to pay Linus. If they were better negotiators he'd probably have came down there for free ...as hyped as he seems to be about this.

[@ltcuddles685]

That's been a thing for like a year

[@HontasFarmer80]

That's the @@ItsJustElenore joke.

[@atanasatanasov1366]

Is Linus a real person? 7:02 Maybe the technology is wrong?

[@johnjonjhonjonathanjohnson3559]

he's a cydork.

[@carterisonline]

I really appreciate the 19:9 format, being an S8 user. 👌

[@SirDaShadow]

Linus, what camera are you using there? Looks different and the aspect ratio seems ultrawide.

[@GiorgosKoukoubagia]

noticed it as well, strange they went for this, though not a bad viewing experience

[@Raja-ev1ly]

Because many new phones have a 18:9 display

[@IndieMarkus]

I'd rather use the two black strips on my 16:9 screen.

[@Ceekur]

Looks awful if you're using a not-phone. Though at least going full-screen removes the bars. since the "bars" are only there in the theater player.

[@shadowblack1987]

@@Ceekur looks great on my ultrawide, looks great on my pixel 3 XL. Heck looks great on my 65" 4K. Get with the times.

[@jesse-dg8yx]

8:39 Huawei +Xaoimi =Huami Am I the only person who sees this?

[@kaldo_kaldo]

That's how words work in symbolic languages. Hua, xiao, wei, mi. Hua means "China" and wei means "for", so the meaning is "for China". Xiaomi refers to "millet", a specific type of grain, but the words mean "little rice". Something to note about simplified Chinese characters - they can have several meanings, much like English words. For Huami, I believe hua is still referring to "China", but this time I think mi refers to "meter", making the name "China Meter" - because that's a logical name and it makes a lot more sense than "flower rice" (alternate meanings for each word). I'm American though so anyone can feel free to correct me if I'm wrong!

[@fatspanishwaiter]

@@kaldo_kaldo The "mi" part probably refers to Xiaomi as it invested in the company.

[@candilor3603]

xiaomi ..may be a chinese word.. but maybe it's also slang for engslih words "show me" .. just an assumption thou..

[@tomstech4390]

Intel: We're having supply issues. TSMC: Sucks to be you.

[@the_synack]

Know what I like about the sponsored videos on this channel? Even though they're sponsored, they're very interesting and informative. Usually, I learn something, instead of it just being a 30-minute infomercial like some sponsored videos on KZbin may be.

[@janlego007777]

Thanks for the aspect ratio, I can finally watched the video without black bars on the sides

[@NicolaGuerrera]

Core designer isn't currently working :( .

[@devlinrhoades3188]

Linus is as much a "person" as that airplane is a chair

[@blablamannetje]

the screen says "per son" ... Does Linus have sons?

[@nieljosiah]

@@blablamannetje So, how many Linuses are there?

[@Warden64]

*If only my parents would let me design mine...*

[@cako7139]

Little Kid go and work

[@RomanoPRODUCTION]

Your patents? Damned

[@LOWPR0FiL3]

doesnt work like that bud. you gotta go to school first

[@SianaGearz]

Just do it. Download the free VHDL Cookbook, look at existing small open source CPU designs, just Google for 8-bit and 4-bit VHDL CPUs, download some development environment from Xilinx, Altera or Lattice Semiconductor, all free for small-size FPGAs, dick around in it to simulate maybe a fraction of a second of CPU operation, and finally get an FPGA evaluation board or FPGA computer, which is price range like $20 to $200. You don't need special permission for any of this. Look up the patents pertaining to 6502 CPU, they are now expired and quite educational. Actually building a 6502 from scratch is a neat excerise which might take between a few weeks to a year and it's a popular CPU from back in the 80s, lots of software for computers based on it.

[@Mrbootyman]

@@SianaGearz That is a lot of very good information. Thank you.

[@KelzCasa]

I’ve already watched about a dozen videos on RISC V, and it finally clicked as to what they’re all about when you got to the configurator. This video was the cherry on top!

[@zachporemba5573]

“It’s like the brain of the computer”-Long time watcher, first time caller here. That callback to the prebuilt supplier video was superb, mister editor. Definitely did NOT go unnoticed. That’s the kind of humor that keeps me coming back.

[@erdem--]

I hope we can add a huge size of gddr5, like 64 gb gpu

[@silvy7394]

Good luck even having that supported on Linux

[@slaaayx]

but the core wont be that amazing

thegeorgezila because those are single use computer built and designed to do one thing. it would be a waste to install windows or ios but you could do it in their nothing is stopping you form doing so. these chips he is looking at actually stop you from using windows or ios because it is unsupported lol. it doesn't matter how many cpus it supports that isn't even what we are looking at with this. Linux is also sucks for just about anything other then being a workstation for single use projects which was the design beyond Linux when it first came out. that is why it supports a lot of cpus and other things because it open source and it most people use these machines as servers. Linux is good for single use project like I said they are trying to catchup with everything else and until they do they will keep being used as a single use software os.

[@silvy7394]

@thegeorgezila Ha, you'd be a joke if you think it has good support for hardware. I could install it in my laptop right now and have multiple things not working. I dont care about your open source drivers. Yeah, they work but you get nothing close to the performance the card is capable of, or some things simply dont work. I learned that the hard way wondering why my GPU on Linux was running 3x slower than the other guys with the same exact PC, but on Windows. Of course Supper computers dont run Windows. Its not made for that. Its like asking you how many normal PC's run Linux. Exactly, almost none. IOS is a mobile OS dumb ass. Windows supports the x86 and ARM instruction set which is probably 99.99% of the CPU's out there being used.

[@nullarcstudios8910]

What aspect ratio was this video recorded in? I get black bars on the top for my 16:9 monitor, and bars on the sides for my 21:9 monitor. What the heck?

[@dilyo624]

It's 18:9/2:1 aka what a more common aspect ratio for phones

[@Nurse_Xochitl]

@@dilyo624 16:9 is still more common. My phone isnt 18:9

[@dilyo624]

@@Nurse_Xochitl I meant to say newer but I'm lazy to fix it

[@andrewkorman7646]

My phone is 18:9 and there's no black bars. So it's 18:9(2:1)

[@TTSetters]

it works 24:7

[@kingotime8977]

11:40 So the robot is learning from #droptips

[@munnaroy2053]

Sir Please make a video on SHAKTI Processor made in India by IIT Madras based on RISC v architecture

[@lucabrasi7999]

Big respect for Linus for showing this stuff, really interesting

[@DeWilsKanal]

I think their designer is kinda down right now, because all LTT users are trying to get in right now :D

[@hadto8482]

it's up but only just

[@CarlosSanchez-en6mr]

DeWil why use them? There are many of these kind of companies out there that have been here much longer

[@lS-vb7ho]

@@CarlosSanchez-en6mr They clearly stated why in the video. Those companies are mainly for big manufacturers, so they cost a ton while SiFive's CPU costs less and does (seemingly) the same job but better. More people can get it, meaning more people can develop open source software for it.

[@CarlosSanchez-en6mr]

ǝlʇʇᴉɹʞS I can buy pcb’s for dollars and the components for cents here in the US and solder it myself Or order a custom one from China already built very cheap It’s honestly been easy for years but people just don’t look hard enough

[@lS-vb7ho]

@@CarlosSanchez-en6mr That means nothing without software. The point of the Risc V is that the software will continue to evolve.

[@michelm9480]

I love this type fo videos !

[@bigned6448]

Can you make your videos at a 16:9 aspect ratio?

[@witheringvirus230]

Time for an upgrade

[@azarilh2355]

Nu! :(

[@batt3ryac1d]

I like the 18:9 looks great on my phone

[@rhythm449]

I REMEMBER SOME OF YOUR FIRST POST..AND I HAVE BEEN LEARNING FROM YOU EVERY SINCE...THANKZ..AND YOU ARE A GENIUS...

[@sedy7304]

Ha! A j-link at 10:54. Great to see that Segger supports the RISCV architecture this early. It seems that also their educational grade probes support it!

[@Zortec]

i tried to design a CPU. But instead, I built a Castle. help!!!!!!!

[@modzn7904]

aahha

[@TheBetterGame]

Help I accidentally build a shelf

[@ferco202]

what?

[@Galaxy-456]

Hate when that happens

[@Tedd755]

Wow, another edgy read more 'joke'.

[@sawyerbristol7122]

If they don't pick up the phone how will they know how many pcb's and cpu's your buying? 1:44

[@abdullahkandrani]

sawyer bristol yeah i need the name too

[@axe693axe]

Still more exciting than RTX.

[@luisgrajeda4147]

And cheap hahaha

[@GAMEVIDSnorwegian422]

RTX is literally the biggest flop from Nvidia ever... To be nvidia standards, it was a huge flop...

[@PhilipHjulskov]

Dat dynamic range of the RED really shows in this video! Great shots and video!

[@shmuel6]

One of the best ones YET! I am glad to actually see the desktop in action.

[@pradeepkumar-qo8lu]

Shakti is another RISC V based muP being developed in India

[@MsArion246]

0:51 I can see Linus video on the bottom right corner.

[@MidnightBloomDev]

Why is my assignment in school called the same

[@Tsofuable]

I love this type of content, please do more like it when you get the chance.

[@rishabhgupta2528]

The view from that window is beautiful!!

[@StarGateSG7]

You can actually design an ENTIRE CPU using simple C/C++ source code by making a custom set of everyday functions and "procedures" such as ADD, Subtract, Multiply, Modulo, Integer and Real Division plus various Bitwise AND, OR, NOT, XOR, Rotate, Reverse, FlipBits, etc and THEN outputting that to a standard C-to-VHDL (Virtual Hardware Description Language) which you THEN burn to FPGA (Field Programmable Gate Array) chips for long-term testing before you send the final circuit design out to Global Foundries, TSMC, Samsung, Philips or whoever for final "Tape Out". The key part is to create ONLY the most basic of signed and unsigned integer, fixed point and floating point, character string and boolean data manipulation functions and organize them as a Synchronous array so you create hundreds if not thousands of "Microcores" which can work on a lot of data at the same time very much like what a GPU graphics card does. You let your MAIN AMD/Intel/Arm CPU handle the fancy super-pipelining, branch prediction, hyperthreading, etc while the Array Processor you just coded in C/C++ does heavy duty, highly parallel math, pixel, character string and boolean logic operations which you use for Hyper-realistic bitmap rendering or even better yet, playing Crysis at 128k by 65k resolution at 64-bits per pixel RGBA colour! May I suggest you burn full Gallium Arsenide circuits at 300+ nanometre line trace widths and processes and jump up the clock frequencies to around 60 Gigahertz! You CAN get it up to Two Terahertz but then you're getting to the management problems and limits of picometre distances that electrons can travel in a clock cycle at 2 THz. .

[@ashishpatel350]

If I design it myself will I be able to get you to accidently "leak" it?

[@jr_kulik]

2:1 aspect ratio? Woohoo, this is amazing!

[@lawrencedoliveiro9104]

1:27 Not just money, also flexibility. Like the ability to build whatever core you want into whatever chipset you want. You don’t have to ask permission from any IP owners before trying something new. For example, Intel maintains a tight rein on which of its chip lines can be used in which market segments, to avoid cannibalizing its own profits. Competition is good!

[@ThatGamePerson]

I think it's great you are putting them in the spotlight. These projects need all the help they can get and I really like the idea of an open architecture.

[@KnightSlasher]

I am C-L-4-P-T-P but you can call me Claptrap

[@Michaelljesus.]

hello Claptrap

[@dreadlock17]

Missed a P

[@MrTheKing771]

you gone this wide? just go 21:9 and my monitor will be very happy

[@RiverSight]

It's 18 by 9 which is more common than 21:9, due to most mobile devices now are somewhere around 18:9

[@Katjaneway]

"it's like the brain of the computer." Icwatudidthere

[@Crosis2814]

The Verge?

[@grey5626]

Finally got a shipment notification for the HiFive Unmatched I preordered last year. Meanwhile, some have reported already having prototype BeagleV boards in hand you can see some videos of them booting Fedora at the moment. Albeit, Linux isn't the only choice for RISC-V, FreeBSD (aka more or less "upstream" of macOS for those not in the know) has been running on RISC-V (such as the HiFive Unleashed) for years and OpenBSD just announced RISC-V support (for those, who like Microsoft and Apple, like OpenSSH, or uhhh, like Apple, who like libressl). In other words, RISC-V is continuing to improve, while Intel continues to flounder on x86 (*cough* AMD64) after Itanium flopped, and while many are going bonkers over Apple's M1 (and who wouldn't, ARM was better per clock cycle than Intel, even in the 1980s) with its high performance and low power draw, if they'd paid attention, Micro Magic demoed a 5GHz RISC-V CPU drawing just 1W last year. Keep in mind: that HiFive Unmatched which I expect I will pick up from my mailbox later this week, was fabbed at 28nm. Meanwhile, HiFive has already done proof of concepts on a 5nm fabbed RISC-V. Which is to say: the headroom and future for RISC-V looks bright! The present, is not so bad either. Well, unless you're a vested interest with Intel or Microsoft I guess, but who would be that behind the times and resting on their laurels? (Hmmm, wait, maybe a "tech" channel which devotes multiple episodes to showing off how they pimped their homes with $5000 bonuses from Intel? Naaaah, couldn't be)

[@amanpahwa211]

i am on the board with you but as a undergraduate software engineer really didnt understand the technical details you mentioned edit : read it twice , got it.

[@ComdrStew]

My first computer build I had to solder the chips onto the wafer board, of course you were able to customize the computer exactly the way you wanted it.

[@michelg.7006]

Theres no rgb

[@michelg.7006]

Yeah true

[@michelg.7006]

Oh this was me lol

[@myselfangad.939]

@@michelg.7006 😭

[@twopacks9178]

@@michelg.7006 how high are you lol

[@michelg.7006]

Fin still not high enough

[@kayo1761]

design your own Raspberry Pi?

[@ShadowStarchild]

Working on this

[@minhajsixbyte]

@@ShadowStarchild what’s your update

[@collinsindustries3088]

yeet on those CPU manufacturers

[@thedevminer]

I mean. Who needs intel and AMD... In case you need a good!!! CPU use AMD

[@0x00Fyou]

lmao just get an i5 or an i7 and redesign from scratch but make it more powerful by adding ur own parts

[@aprofessionalateverything7585]

@@0x00Fyou and how do you plan on getting a hold of X86? It's super secret information and there's literally no way you could get it without being a top official or engineer at Intel or AMD, and they'd have you sign a contract making it a felony for you to use it anywhere else or give it to anyone.

[@brunoalvesdasilva74]

It was in Chipcon 2018. Florianópolis - Brazil

[@mr.anirbangoswami]

I'm in 2nd year of Electronics and Comm Engineering. Very interested in Computer Science and ML. Can't even thank Linus enough for the inspiration from his videos.

[@renciks5610]

5:22 still faster than my friends laptop

[@s1nRG]

F

[@szirsp]

""first ever"... Have any of you heard of OpenSPARC ? How is this first? In what way?

[@vikiai4241]

"First ever" because the universe obviously didn't exist before the up-coming generation became aware of it? :-/

[@Waitwhat469]

To be honest why the heck isn't openSPARC more popular? I can't find anything about it.

[@DeinonychusCowboy]

OpenSPARC wasn't designed as open hardware, it was an after-the-fact open-sourcing of proprietary hardware. There's a difference, especially considering Sun only open-sourced SPARC after its eventual commercial failure.

[@gregorymalchuk272]

@@DeinonychusCowboy Is it free and open source, or only open source?

[@HansBaier]

OpenRISC too

[@peppybocan]

and now learn VHDL/Verilog and spend next 20 years developing your own CPU.

[@OhMeadhbh]

So... turns out it's probably only 2 years to figure out Verilog & designing a simple CPU. Or 6 months if you're a quick study. I think that's the point of the core designer. It's for people who are interested in custom silicon, but don't want to spend the time learning the design tools or setting up relationships with chip fabs.

[@peppybocan]

@@OhMeadhbh yeah it looks like so, but even after my introduction into cpu design college study some of those terms used in their web configurator are just passing by me :D

[@hudsonye4599]

This is the kind of ad I actually need. Great job Linus.

[@NebraskaGeek]

Love the switch to 18:9! Awesome for us phone viewers!

[@evaristegalois6282]

As long as I can use it to watch h3ntai, then I don't mind designing my PC from the CPU up

[@GeoTechLand]

The real question is, will these cpus run crysis? 🤔

[@siverickson7961]

@@heanstone1327 no u

[@deltanedas]

@@cubetheorist3419 shut up weeb

[@MrWatchtower]

Like Hackers said before...."Risc architecture will change everything" "Yeah, Risc is good"

[@mephInc]

Orwell is here now. He's living large.

[@MrWatchtower]

@@mephInc We have no names man! No names, we are nameless!.....Can I score a fry? Thanks.

[@mephInc]

@@MrWatchtower Spandex, it's a privilege, not a right. ..still my favorite movie. I miss the days of tone dialers and red boxes.

[@MrWatchtower]

@@mephInc Had a pretty good soundtrack too. And Wipeout on the big screen!

[@vikiai4241]

@Walther Penne Spectre et.al. are caused by shitty implementation, nothing to do with ISA, be it x86, ARM, or RISC-V. You can certainly design a RISC-V chip that has such faults, just as you can certainly design an x86 chip that doesn't have such faults (in Spectre's case, the problem was a cache-speed-hack that wasn't properly thought through, and the solution is to not use that particular cache short-cut in cache designs, and accept a very-marginally 'less-fast' machine!).

[@VicGreenBitcoin]

Can we re-build the original Intel 8086-processor ?

[@slaps_only]

I love how Linus took an idea that was completely abstract to me and beautifully put it in layman’s terms.

[@slumgod]

That look on the guy getting the balloon at the beginning was priceless.

[@kaibaCorpHQ]

I'll be honest, half of what Linus said just went over my head.

[@electronJarvs]

I use to be the same, I now watch the videos stood on top of an old phonebook. Problem solved

[@davidanderson1731]

I usually know what he is talking about and most of his videos are relevant, but I didn't go to college for computing.

[@England91]

@@davidanderson1731 if you watch channels like EEVBlog or GreatScott then you might understand better

[@doomkonb]

*Designs an intel Cpu" DONE!

[@ethanpet113]

x86 is super bloated thanks to all the legacy nonsense, and the fact that it's CISC.

[@psionx1]

@@ethanpet113 it's bloated now but intel plans to remove all the old instructions and introduce a new instruction set to emulate them at some point. then again technology is improving all the time so the area of the chip used for old instructions is getting smaller every generation.

[@darthkarl99]

@@nickwarrior5 IMO Apples way of including a different processor type as a co-processor is the really interesting bit IMO. And RISC being open source has the potential to do this in a way ARM can't outside of apple products because it's wider applicability is going to get a lot more stuff written for it.

[@BothHands1]

@@nickwarrior5 I mean, we're about to reach a point in the next 10 years or so where we cannot gain free performance from process node shrinks anymore. On PCs, that won't be as impactful of an issue, at least at first, since more cores can be added, and extra cooling can be applied to it. But the mobile computing market is utterly huge, and only growing. In small form factors, you can't just add extra cores, and throw a beefier cooler on there. Once we get to the point where there are absolutely no more improvements in computer hardware for several years, slowly the tradeoff will start seeming more and more reasonable. Gotta get rid of backwards compatibility, or keep running on the same hardware forever. Our process nodes are already small enough to only be a few atoms of silicon across - a few more shrinks and they just won't physically be able to be made smaller. It may not seem worth it now, and you're right, it isn't yet, soon it will be.

[@ethanpet113]

@@nickwarrior5 The premise of the comment is that making an intel CPU would be logical since it already does all the things well enough. I'm not making any argument for ARM, I'm saying that CISC architectures pretty comprehensively lost the CISC+RISC war, has a lot of bloat for compatibility despite the fact that chip design has moved on. Like why does a desktop CPU support virtual 8086 mode and real mode, when absolutely no-one would use that in a modern desktop system because they need a supervisor for preemption.

[@Alirezax64]

Let's make core i69!!!!!!!

[@Scoopta]

I love how htop was just there on one of the monitors lol. I love htop. It's honestly so useful.

[@nicknewcomer948]

Love the 2:1 video scale looks great hope you keep it