programming

[sage crag]

why is it generating gpu

stop

[opaque wharf]

But firefox can divide by 0

So it is allowed

[olive sable]

thermodynamics vs firefox

[rigid snow]

firefox downloaded you infinite gpu compute, train an agi rq before it goes away

[sage crag]

apparently my current phone only has an 800 nit screen

erm

[dull ether]

what the sigma

[opaque wharf]

Use this

[sage crag]

noe

noe

[opaque wharf]

800 nit? No problem

Block out the sun

[hoary lion]

rich person

or family idk

[opaque wharf]

I wouldn't consider myself rich lol

[rigid snow]

oppo phones aren't expensive are they

[opaque sigil]

some are

[opaque wharf]

But in this particular case, the expensive comes from artificial scarcity

Hmm, an update just borked my install until I restarted

[sage crag]

[opaque wharf]

Did you experienced the same issue?

[sage crag]

no

immortal

[opaque wharf]

I wonder what banger chay is typing rn

[sage crag]

probably just awa

[opaque wharf]

I bet it's bwaa

[tender river]

to summarize my opinions:

• android - good idea, mobile linux is not a very stable experience and each device has a set of tradeoffs; you take stuff like having working gps or camera for granted until you use mobile linux, also in your case you haven't even tried degoogled android so you might not realize how much you depend on closed ecosystems
• 120hz - imo you can live without it, it's not a huge deal unless you use your phone more than your pc
• mobile linux - if you get a phone that already supports it, you can hope for improved support in the future, otherwise you shouldn't expect your device ever getting linux support

[opaque wharf]

Hmm, so both answers are wrong

[sage crag]

i use my phone for reading, scrolling experience is important abwababwa

[tender river]

you can use paged reading

[sage crag]

pages :ReallyMad:

[tender river]

unless its in browser i guess

https://f-droid.org/packages/com.foobnix.pro.pdf.reader/ supports both scrolling and paging

[sage crag]

i use readest

[tender river]

not in fdroid

[opaque wharf]

I rely on google due to government mandated application

[tender river]

looks like its in the process of being added https://github.com/readest/readest/issues/627

[olive sable]

it seems like vulkan is also stuck at 5000fps

this is without multiple frame sin flight tho so there is still hope

[nocturne olive]

VulkanSoSilly

[sage crag]

what gpu do you use

[olive sable]

3090

[sage crag]

it can be boosted to 1695 MHz, which means your theoretical fps limit is about 1.7 billion frames per second

get optimising

[olive sable]

i doubt ill get single clock cycle frames

[sage crag]

one can hope

[olive sable]

[sage crag]

this does mean you are using about 336376 clock cycles per frame

so uh

skill issue

[olive sable]

33 thousand

damn

thats fucked

[sage crag]

336 thousand

[olive sable]

ohhh

no

[sage crag]

though its not accurate considering scheduling

of those cycles, only a small fraction will be used for your program

and those cycles may be sparse rather than dense

[olive sable]

well to be fair at 1080x1920 i have 2073600 fragments and only 10496 cuda cores

its impossibel to render that many fragments in a cycle

unless i run at 100x100 resolution

runnig at that resolution actually made performance worse

4500fps

im not gpu bound anyways

[tender river]

git blaming glibc code

its insane how much of the code is still the way it was 25 years ago

[sage crag]

the average person's code is unchanged for about 80 years

[tender river]

neuro's code probably changes about as often as glibc

[sage crag]

paper bag

[twilit finch]

uhh guys
https://i.imgur.com/3YSY0W5.png

read the times

[sage crag]

[steel mesa]

means your clock is 40m early

[tender river]

https://time.is

[steel mesa]

an example (i havent bothered to fix its just one minute)

you can also just automaticly use window's time synchronization

[tender river]

wait this is closed https://github.com/swaywm/sway/issues/7035

huge

it means i can finally make progress on my nixos ereader config

hopefully

[rigid snow]

ok so the promptboard thing works but needs heavy polishing and my system prompt is probably shit, here i'll ask it to respond to the above convo

Well, good luck friend! Let me know what happens

this fucking sucks bro

and i explicitly asked it to "creatively respond"

[twilit finch]

I think my CMOS died cuz i sync then shutdown pc come back its really early

its an hour early

[rigid snow]

any proompt engineers in chat

[twilit finch]

dead chat

What if you told Neuro to delete the C: drive on stream and the stream just... ended

[rigid snow]

"i want a funny essay responding to konii" with the replied message as the last visible one

Oh, the Pixel 8a looks like a toy, does it Konii? WELL, MAYBE YOUR ENTIRE EXISTENCE LOOKS LIKE A TOY TO ME. A cheap, plastic, dollar-store toy that I wouldn't even let my DOG chew on. You come in here, spouting your opinion like it's gospel, when really it's just the ramblings of someone who probably still uses training wheels on their bicycle. "The Pixel 8a looks like a toy." I've heard enough. I'm done. You're cancelled. Get out.
damn

so offended by the pixel slander, guess who this model is by

[twilit finch]

My AI just Deleted my browser

[rigid snow]

i can ask the thing to type terminal commands so it probably can

[twilit finch]

This happened over a year ago but I ran a AI on my linux machine and got it so angry it ran sudo rm -rf / -no-preserve-root

oophttps://i.imgur.com/tbTNk4x.png

[sage crag]

tell it i refuse to listen to a thinking rock tell me im wrong

[rigid snow]

tell it i refuse to listen to a thinking rock tell me im wrong

verbatim what it typed when asked "what do you think"

[sage crag]

that is chatgpt

[twilit finch]

what?

[sage crag]

[sage crag]

robots

[twilit finch]

should i make a talking rock chat bot

[rigid snow]

it just decided to repeat what you say it's so bad

robots

and gemini 2.0 flash isn't a bad model

[twilit finch]

what should we do? im bored lmao

[rigid snow]

should i pick a smarter one tho

[olive sable]

not smart to post about it

[twilit finch]

yeah maybe nor

[olive sable]

its tos

[amber fractal]

Classic

[rigid snow]

it does a lot of things I don't condone

there you go, gemini disapproves

and will insult you for insulting any google product

[amber fractal]

If I insult google hangouts, I'd imagine more than just gemini would be insulting me.
-# I was a heavy hangouts user so friendly fire will not be tolerated

[olive sable]

[amber fractal]

it's so close!

the meme, it must happen

(Ignoring regional diffrences where it isn't over 9000)

[olive sable]

when in doubt add more frames in flight

[sage crag]

when in doubt reduce IO

[olive sable]

[amber fractal]

[nocturne olive]

!!!!

[olive sable]

https://tenor.com/view/vegeta-dragon-ball-z-unlimited-power-over9000-power-level-gif-12316102

[sage crag]

[nocturne olive]

Very big number

[amber fractal]

Out of curosity is this still test scene or did we enter the void for the memes?

[olive sable]

we have 1 triangle

[amber fractal]

That is defently reducing IO

[nocturne olive]

A whole 1 triangle, what massively intensive scene

[olive sable]

i havent added vertex buffers yet so this is all we get

[nocturne olive]

Now make it a game engine

[olive sable]

i think the actual testscene will be 7-8k

[amber fractal]

Considering the gpu is barely doing much I'd say 7k is my guess

[rigid snow]

Ah yes, the fundamental building block of every AAA game.

ok the reasoning models are better but like i waited for 30s for this

[amber fractal]

required: TAA

[small anvil]

Now sell it for £70

Oops

Didnt reply

[small anvil]

.

[amber fractal]

is a building block fr fr

[rigid snow]

and it cost me 2 cents

[tender river]

perfect

ship it as a productivity tool

[rigid snow]

[tender river]

imagine the time saved not having to type a response

[patent walrus]

needs more fps

[olive sable]

agreed

[sage crag]

i swear you had a different chisato a few days ago

what is happening

discord cache

[tender river]

apparently nixos just removed sdl2 from the repos adding an alias from SDL2 to sdl2-compat

[olive sable]

what?

[tender river]

i guess if it breaks anything it's an upstream issue

[sage crag]

arch did the same when sdl3 came out

like immediately

[tender river]

maintainers jumping at an opportunity to not maintain something

[sage crag]

maintenance is an optimisation task

[opaque sigil]

what's there even to maintain, isn't sdl2 "done"

[sage crag]

less maintenance is better maintenance

[opaque sigil]

true

[tender river]

tar

are you sure

are you really sure you removed the leading /

maybe it means it's removing it in the archive but not in the input

[sage crag]

clearly its sure

just dumb

[tender river]

[sage crag]

🎤

[sick owl]

Oh heads up, if anyone was using ollama for convenience on their secondary machines like I was

The new version with the GUI built in is closed source

There's still a CLI only version on their github page though

[sage crag]

awawa

[twilit finch]

SWARM FM GONE
https://i.imgur.com/2gUK7hK.png

NOT SWARMFM

[nocturne olive]

It lasted surprisingly long

Well, you can just download from my FTP server, since that's back up now and has all Neuro covers that I know of along with some extras from the community

[safe path]

closed source

[amber fractal]

Shame as swarm fm was used by the tutel himself.

[small anvil]

[faint sandal]

https://fxtwitter.com/lauriewired/status/1951107157849678128

LaurieWired (@lauriewired)

it’s okay guys lunch is on me
︀︀
︀︀*swipes linux credit card*
︀︀
︀︀*instantly declines*

**💬 12 🔁 11 ❤️ 231 👁️ 5.3K **

FxTwitter · Aug 1, 2025, 2:26 AM

[hoary lion]

im back programming humans

[hard raptor]

Silly dutch OS, smh

Actually funny how they only mention utrecht university in their history, while delft university was a major contributor from the start and even gave nix and nixos its blue colour scheme

[opaque sigil]

what a lovely function hover, thanks lsp

[faint sandal]

[opaque sigil]

i'm all for expanding types that are calculated at compile time but uhhhh, yeah maybe not all the way down

actually

i wonder if this is why the mojo lsp takes so damn long to parse files when you first open a file

[small anvil]

you are watching a master at work

[faint sandal]

https://xkcd.com/1296/

xkcd: Git Commit

Merge branch 'asdfasjkfdlas/alkdjf' into sdkjfls-final

[amber fractal]

Reminds me of this, Sam really did have a bad day

[opaque sigil]

[amber fractal]

I had to wipe the git history on my NN project so I can't use that as a source

I definitely had some messages

[hard raptor]

This PSU seems tiny compared to the old metal colored permanently attached cables ones i used to take apart as a kid

Also compared to the case

[hexed shadow]

Rust vs girlfriend, who wins?

[stark needle]

rust

[hexed shadow]

correct

[stark needle]

girlfriend is a trap to get you off writing rust

✅

[glass flower]

rust is atleast memory safe. a girlfriend might forget things

[hexed shadow]

emotional abuse
everything is your fault
occasionally feels great
teaches you a good lesson
you're never good enough
consistent
helps you grow
can be tamed with unsafe{}

last 3 only exclusive to Rust

rust has all of those

as well

[opaque wharf]

You did it. You majestic SOAB, you finally did it

[trim valve]

ok good new: the action run fine
bad news: I don't have a working cache, and also my change detection doesn't work

so the file gets fully rebuilt every day, instead of:

• just the changes
• only after karaoke

[stark needle]

😭

[opaque wharf]

Check out this change trigger
https://github.com/neurobot-1000/neurobot-1000.github.io/blob/main/.github/workflows/docs.yml

That allows us to rebuild the site everytime a new docs is updated, but not necessarily the code (because the site doesn't directly depend on the code yet)

IIRC github also provides scheduled run and via REST trigger

[trim valve]

yeah my action is currently a schedule trigger

the first issue I know how to fix (forgot a == 1 on a condition)
The second one will probably involve messing around with the cache action until it works

[flint dome]

why is this so actually entertaining and why am I not here more

[trim valve]

https://github.com/owobred/pleep/blob/main/.github%2Fworkflows%2Fkaraoke.yaml

it's mostly just a case of having zero idea of how cache works from a dry state, but I'll work it out eventually

(also side tangent, at some point I should make a little experiment executable that goes from spectrogram -> sound so I can hear just how awfully compressed this makes stuff)

[tender river]

🎤

[opaque wharf]

Wdym spectogram to sound? You store the spectrum image but not the soundwave itself?

Tell me you didn't store the spectrum as image

Well, I guess you could if you store it using lossless format, but still....

[jagged turtle]

finally

finished apt-swarm

[hoary lion]

@stark needle 120b for gpt oss

[hard raptor]

Now that i am trying to play a minecraft modpack on 1.21.7 i now remember why i even made the choices for my pc build, and why i didn't go for like the best radeon GPU i could find, cuz my laptop's 10+ yr old iGPU on the minecraft version.. like i still have between 30 and 50 FPS, which maybe isn't good to todays gaming standards, but it's not unplayable bad, cuz i mostly do PvE and building and stuff, like i don't really do PvP that much....
But the TPS lag.... it's unreal, it's sooo fricking bad

But i already made the choice to keep my options open for the GPU and maybe go for like the best Radeon i can find, cuz it's nice to not have to buy a new GPU when i do decide to do something more GPU intensive for once

[nocturne olive]

Meanwhile my system:

[hoary lion]

superbox occasionally appearing at #programming to show off his nvidia-smi results:

[south needle]

tf just happend

[stark needle]

whats this

[hoary lion]

"Open" AI

Finally

[stark needle]

oh

the oss model?

bruh rip it's unusable

still only usable via api

which takes away the whole point

[hoary lion]

It's not out yet

They fucked up the surprise

[stark needle]

yea but

it's useless

i aint gonna run that

it's still a datacenter model

[hoary lion]

Oh that part

Yea true

Someone should distil it really well

Time to eep

[stark needle]

i know how to distil

i just don't have the money

[hoary lion]

[hoary lion]

Don't we all like that

[stark needle]

wait wait wait

[hoary lion]

Why there are like 10 different variants of teams

But 20b yay

Runnable at my computer

Hopefully

[small anvil]

why did i have to be a developer
ive literally spent the last 5 hours of my night which has led me nowhere because half the comments im looking through are in chinese
curse upon who ever made this
fuck networking and fuck multiplayer WHY does there have to be 50 DIFFERENT functions and WHY do they have to be ALL IN CHINESE

-# im talking about kcp

[glass flower]

unironically i think if you use AI to translate and summarize this it would be faster

[small anvil]

like what am I even doing anymore, ive lost all hope and i've abandoned indentation just to get this finished faster

it just

gets stcuk

at

conv

WHBY

[opaque wharf]

Oh, that's where the fun only begins

[small anvil]

WHY

[opaque wharf]

You should try reading datasheet in chinese

[small anvil]

[flint dome]

DO NOT REMIND ME OF THAT ONE FOR FUCKS SAKE

[stark needle]

@hoary lion someone calculated it, it's a 5.7b

active

[flint dome]

this reminds me of the time i ripped out a screen of a knockoff psp so i could use it with a raspberry pi but for the life of me could not read what the actual hell the datasheet for the controller said because their english version was so poorly translated

[opaque wharf]

Mhmm, it do be like that. I lost count how many times I need to download from baidu and ended up just pushing it to my friends to do it

[small anvil]

i might as well just make my own messaging algorithm holy shit

sending data to the client yet the client does not receive but its literally connected 😭

[opaque wharf]

What is onClientConnected_ doing? Are you sure you shouldn't wait until that function is done? Because it may be async

Also, if onClientConnected_ is a function, then it may not be tied to the client socketFd

[small anvil]

onClientConnected_ is never async, its a synchronous function that gets called when a client connects, even still, it passes it and then goes to sendto, but literally nothing happens
Whats funnier is that the UDP client is actually connected to the server, it just doesn't recognise the packet

We're using both the original source for ikcp in the server, and then a translated port to C# for the client, which are identical in terms of functionality
I know its my configuration, but I just cant seem to find where

[hard raptor]

Imagine, google could just decide to pull a xiaomi and put ads in android itself instead of paying app devs to have ads in their apps

[small anvil]

Cause what's supposed to happen is the client starts out with a conversation id (just an identifier used by KCP to describe a client) of 0, if its zero then the server uses the next sequential number and then sends back the packet with the new conv id so the client can set it on their end, however, the client does not notify itself of a new packet, which is even more disturbing

[opaque wharf]

That does indeed sounds cursed lol

[flint dome]

your api has adhd lah

forgot it is talking in the middle of conversation

[white notch]

Oh programming gods teach me the ways of learning how to be a code nerd

[flint dome]

https://cs50.harvard.edu/x/
start here if zero absolute no knowledge

[hard raptor]

My vinyls are almost here lol

[flint dome]

also check pins

[white notch]

Ooh I see I see

[small anvil]

I give up

Im gonna make my own messaging algorithm

I cannot deal with this for the life of me

[olive sable]

Goodmorning CHAT

[sage crag]

is it really

[tender river]

its almost night if anything

oh if i dont sleep soon i'll miss the stream

[sage crag]

@tender river interesting

clang vs gcc

[tender river]

can i copy your homework ahh code

[sage crag]

wtf

why did you do this clang

gcc

[tender river]

a plain erms memset is slow for some sizes but fast for others

[sage crag]

clang felt the need to unroll 8 iterations of the loop

[tender river]

speed

(questionable)

[sage crag]

gcc with -Os

clang with -Os

read this

good compiler

they are identical with -Oz though

[tender river]

i was thinking more about what erf type system should do with types, and i realized that instead of "unifying" objects' types it should "unify" compiled code that works with objects of each type

i.e. the same code can be used with multiple pieces of data if it compiles the same way

which is unfortunately quite complicated because now the type system has to know about how code compiles, i'll have to think about it more

[sage crag]

<memset_a>:
        xor    eax,eax
        cmp    rdi,rax
        je     <memset_a+0xf>
        mov    BYTE PTR [rsi+rax*1],dl
        inc    rax
        jmp    <memset_a+0x2>
        ret

[sage crag]

good luck with the thinking

[tender river]

awa

[sage crag]

why does it cmp rdi,rax

when you only xor eax,eax

what if the register had an int wider than 32 bits

this asm is hard for me to understand

its using rax for both the length and the pointer

oh

ohhh

[tender river]

hm?

i dont think so?

[sage crag]

endianness

[rigid snow]

On x86-64, when you write to a 32-bit register like eax, it automatically zero-extends to the full 64-bit register rax. The xor eax, eax is a common optimization to set rax to 0 because it's a smaller instruction than mov rax, 0.

So, the next line cmp rdi, rax is just comparing rdi (probably the size argument) with 0 to handle the case where memset is called with a size of zero.

[sage crag]

that's goofy

[rigid snow]

here's what promptboard on gemini 2.5 pro has to say

[tender river]

Perhaps the most surprising fact is that an instruction such as MOV EAX, EBX automatically zeroes upper 32 bits of RAX register. This doesn't happen with instructions that only read destination registers, like TEST EAX, EBX. In this case RAX remains unmodified. There is one exception to this rule, CMOVcc instructions, for example CMOVBE. These instructions zero upper 32 bits even if the condition is false, when the move doesn't occur.

http://x86asm.net/articles/x86-64-tour-of-intel-manuals/

it's probably done for easy interop with 32-bit code

you dont want to call a 32-bit function and get a value thats secretly a different value if you look at the entire register

maybe

[sage crag]

<memset_a>:
        xor    eax,eax ; zeroes whole rax. x86_64 quirk.
        cmp    rdi,rax ; total length == current length
        je     <memset_a+0xf> ; if total length == current length ret
        mov    BYTE PTR [rsi+rax*1],dl ; rsi is dest ptr, rax is current length, dl is byte
        inc    rax ; current length += 1
        jmp    <memset_a+0x2> ; back to cmp
        ret

[faint sandal]

you can read the intel x86 manual as a bedtime story for yourself btw

[sage crag]

i would rather shrivel up and die

[faint sandal]

it's available on intel's site

[noble zodiac]

its not that bad of a read

[faint sandal]

I'm still going through windows internals

I'm on page out of 1500 or smth

[sage crag]

<memset_a>:
    test   rdi,rdi
    je     <memset_a+0x16>
    mov    BYTE PTR [rsi],dl
    inc    rsi
    dec    rdi
    jmp    <memset_a>
    ret

compared to what hblang produces

@desert plaza hi

hexdumps for you

0000000  48  85  ff  74  0a  88  16  48  ff  c6  48  ff  cf  75  f6  c3
0000010

0000000  31  c0  48  39  c7  74  08  88  14  06  48  ff  c0  eb  f8  c3
0000010

[opaque wharf]

I suggest nanomessage next gen (nng)

[opaque wharf]

Lmao

[opaque wharf]

Stop torturing the poor cpu

[rigid snow]

i mean it was actually helpful tho, perfectly understood the context, blah blah we get it it's a smart model

i should try 2.5 flash, should be a good middle ground

and i can configure for how long it should reason for too

so it's not 2 minutes

[opaque wharf]

The "typing" method is cursed tho

[rigid snow]

how do you know

or are you talking about the touchbar thing

[rigid snow]

because it is

[opaque wharf]

I am talking about the fact that you can, at any point in time, switch the control to type to your touchbar and prompt AI to type for you

[rigid snow]

oh no no no, you can't switch

you launch the program and you're stuck prompting until you kill it

[opaque wharf]

That's even worse lmao

[rigid snow]

i thought that was the idea

[opaque wharf]

It is, but I didn't think you'd actually not make an escape hatch

[rigid snow]

i mean i just ctrl-c it

because i pass shortcuts

through

[opaque wharf]

Wait, but that means the AI can also type shortcut keypress?

[desert plaza]

hi

[rigid snow]

it doesn't but that was the idea, idk how the json schema would work though, also i can't get programmatically invoking shortcuts to work but honestly i just didn't try hard enough

[sage crag]

two different memsets up there

same size, different mechanism, surprisingly different performance

[desert plaza]

[opaque wharf]

The fact that it works at all means you've actually worked hard enough. And too much even

[desert plaza]

[rigid snow]

i'm referring to the shortcut thing in particular, since the ai can choose to "replace" or "append" i wanted to invoke this if it's "replace"

static func eraseEverything() {
    performShortcut(cmd: true, key: .keyA)
    performShortcut(key: .keyBackspace)
}
``` but it no worky

[opaque wharf]

Cue the AI alt tabbing and typing where it shouldn't

[rigid snow]

how would it alt tab

this is the schema, as i said i don't know how i can cram shortcuts in there

i'm thinking something like this

type ResponseFormat = ({
  type: "append" | "replace"
  content: string
} | {
  type: "shortcut"
  command: boolean
  option: boolean
  control: boolean
  key: string // i don't like this for a lot of reasons
})[];
``` but yeah json schema

[rigid snow]

i'm just spamming keycode 0 (A key on macos) and overriding the unicode string property of the event to the tokens

so cursed

[sage crag]

i made an overkill benchmark

[noble zodiac]

eh there are plenty of alternatives. depends on what you call midrange

[sage crag]

nop is nothing
std is a call to glibc memcpy
konii is my hand-rolled one
hblang is nearly identical to that, except it branches less intelligently
gcc is produced by gcc -Oz (same src code as hblang)
rep stosb is my second hand-rolled one that uses rep stos rather than a loop

[hard raptor]

I meannn.. you have the JBL, Lenco and Audio-Technica thingies of around 200-400 and then you have the PioneerDJ of around 900

[noble zodiac]

Rega Planar series

[hard raptor]

Yeah okay.. and Sony

But like most of the ones that don't want to be a "retro" or a "suitcase" on the website i look at all use audio-technica chips and needles

Which i don't blame them, Audio-Technica is really good at what they do afterall

[hard raptor]

Hold on, this is a Rega Planar

Or at least this is the first result i got when i looked it up

[noble zodiac]

https://www.rega.co.uk/products/turntables

[hard raptor]

Oh it must've been a clone then, cuz yeah it not one of those but it looked really similar

They do look nice though

It looked like this

Similar, but not identical

But too minimalistic for my taste

This one looks really nice though

But this is what i truly want

[desert plaza]

annotated version ```dmp

memset 1

48 85 ff # test rdi, rdi
74 0a # je @return

@loop

88 16 # mov [esi], dl
48 ff c6 # inc rsi
48 ff cf # dec rdi
75 f6 # jnz @loop

@return

c3 # ret

memset 2

31 c0 # xor eax, eax
48 39 c7 # cmp rdi, rax
74 08 # je @return
# @loop
88 14 06 # mov [esi], dl
48 ff c0 # inc rax
eb f8 # jmp @loop

@return

c3 # ret

[sage crag]

ok do you want to see a more cursed one now

[desert plaza]

uh

sure

[desert plaza]

the mov is interesting here

looks identical in asm but are different in machine code

or at least i think they look the same

the second memset uses a SIB byte

[sage crag]

0000000  88  d0  48  89  f9  48  89  f7  fc  f3  aa  c3                
000000c

[sage crag]

close

memset1:
    test   rdi, rdi
    je     .done
.loop:
    mov    byte [rsi], dl
    inc    rsi
    dec    rdi
    jnz    .loop
.done:
    ret

memset2:
    xor    eax, eax
    cmp    rdi, rax
    je     .done
.loop:
    mov    byte [rsi + rax], dl
    inc    rax
    jmp    .loop
.done:
    ret

[desert plaza]

oh

[sage crag]

aside from that only issue i see is instruction width of mov [esi], dl in memset 1 is wrong

well, unless its just some difference in syntax i suppose

it doesnt actually matter because its mov of a byte

[desert plaza]

they are different, the memset 2's mov uses a SIB (scale-index-base) byte that follows the ModR/M byte

[sage crag]

i vaguely know what that means

[desert plaza]

x86 instruction encoding is variable size

[sage crag]

yeah

[desert plaza]

[sage crag]

nightmare for people trying to write an assembler

[desert plaza]

that's one of the reasons compilers are hard to make i suppose

[sage crag]

eh, most compilers delegate the task to an actual assembler

[desert plaza]

assemblers too hard to make then

for x86 especially

[sage crag]

i feel like they could have done variable sized much better

i forgive x86 for being trash because

its old

[desert plaza]

i've had the x86 instruction encoding manual open for so long at this point

[sage crag]

you are the slowest x86 cpu

sorry to tell you

[desert plaza]

still working on that challenge

almost done

[sage crag]

which x86 cpu are you planning on being faster than

[desert plaza]

potato

[sage crag]

im pretty sure i can run x86 on a potato much faster than i can run x86 on your brain

[opaque wharf]

@ Potat ?

[desert plaza]

damn

[sage crag]

maybe you can be faster than an x86 cpu made of marbles

i think thats possible

[desert plaza]

noted

[sage crag]

any progress on the third one?

its novel

[desert plaza]

gimme a bec

[sage crag]

that's a fair amount of bime

[midnight sigil]

https://www.youtube.com/watch?v=Y2L7_2Wvycc

I felt it in my brain

it's... fascinating

[sage crag]

dirstat

[topaz tendon]

Guys, it is so over for me https://cdn.discordapp.com/attachments/1099761105552814100/1400814202448249003/File_20250801-141454.jpg?ex=688e0163&is=688cafe3&hm=e87937b6823d93c754dee5c12d15c4a9cfdfc64a7f9cc6d1284e240fe0b11e32&

[rigid snow]

no way to trace bitcoin tx because they use tor

mhm

[midnight sigil]

Bad command or file name

[desert plaza]

what ```dmp
88 d0 # mov al, dl
48 89 f9 # mov rcx, rdi
48 89 f7 # mov rdi, rsi
fc # cld
f3 aa # rep stos
c3 # ret

[sage crag]

you got it

[sage crag]

this is the one that was on par with glibc memcpy

lol

[sage crag]

in this bench

[desert plaza]

right, so stos is used for the memory access

[sage crag]

literally the whole function

void memset_rep_stos(void *dst, unsigned char c, size_t n) {
  __asm__ volatile("cld\n\t"
  "rep stosb"
                   :
                   : "D"(dst), "a"(c), "c"(n)
                   : "memory");
}

[desert plaza]

that's pretty size efficient

[sage crag]

yes

would be smaller if you didnt need to set cld

i think setting cld can be avoided if you didnt set std anywhere previously, so if you just assume everything is cld and make sure to reset it

it should work fine

[desert plaza]

does any other instructions affect the direction flag though

[sage crag]

i dont think so

[desert plaza]

better hope not

[sage crag]

but like, what if your function is called from elsewhere

[desert plaza]

ye

[desert plaza]

i realized my mistake with the mov [esi], dl which should be mov [esi+eax], dl

i forgot to consider the index register in the SIB byte

[sage crag]

[desert plaza]

index = eax

[sage crag]

you've heard branch predictor mispredictions, now get ready for number predictor misprediction

[rigid snow]

remember when i was complaining about the swift toolchains being like 1gb each? it's actually so much worse

what the fuck are they shipping bro

[amber fractal]

everything, the entire universe

[rigid snow]

just looked and yeah

[opaque sigil]

Oh yeah, swift is gigantic

[rigid snow]

they're shipping frameworks for every apple os

and they have like 10

[opaque wharf]

I cannot fathom if android did the same thing

[rigid snow]

should i just uninstall stable

nightly works for me

[opaque wharf]

If you are not experiencing issue then why not

But also, why would you keep it if you need the storage? You're done with the promptboard right?

....right?!

[rigid snow]

i'm not done at all, the touchbar api is very cursed and i can't figure out a way to actually hide ui components, setting isHidden to true just makes them transparent (technically does remove them but they still affect the layout) and i don't think there's a way to add/remove them after you "created" the menu

maybe i should try, like, having 3 separate touchbars and swap them when needed

at least i think that's what apple intended for people to do

[opaque wharf]

What does this mean?

Surely not having 3 physical touchbar right?

[sick owl]

So OpenAI leaked some stuff on GPT-OSS on their huggingface page

[opaque wharf]

But rather a touchbar layout?

[sick owl]

And we learned some interesting stuff

It looks like the model was trained in FP4

[rigid snow]

how would that work

[rigid snow]

i meant having three different classes (touch bar controllers) but i think i found a workaround, i'm gonna hope it works

[opaque wharf]

Dude, I don't know, I'm not the one with a touchbar But also, since now we know there are 3rd party that sells the touchbar

[opaque wharf]

Famous last word

[sick owl]

Or rather models, as there's a 120B MOE model and a 20B model (not sure if its dense or MOE as well)

[rigid snow]

oh so they did both a small and a large one huh

why did that whole twitter poll thing happen then

[sick owl]

Yup, there were partial weights for GPT-OSS 120B and 20B

[opaque wharf]

Mhmmm, shad has bring it up yesterday

[rough bloom]

only the MLPs

rest is bf16

[sick owl]

Mixed precision as you'd expect

Still very interesting

[rough bloom]

yeah, I'm curious how it'll perform and what their plan for these models is

they'll release soon, surely

[sick owl]

Surely

If the 20B surpasses Mistral Small 3.2 and is only as locked down as gpt4o (I find it strikes a nice balance as far as "safe" models go) I'll be happy

[stark needle]

20b is 100% a moe

same active params

as the big

of ~5.6b

[hoary lion]

morn

my body refuses to have normal sleep schedule

[stark needle]

?????????

[rigid snow]

it's by no means pretty but it works

[opaque wharf]

An AI told you to workout more

Or touch grass maybe

[noble zodiac]

better get going on those pushups

[tender river]

woke up jut in time for stream

[olive sable]

i might watch too today

normally im like "why do x when i could be working" but im having a cheat day

[opaque wharf]

Dang, even Sam is watching

[olive sable]

friday is the day i dont do shit and watch anime the entire day

[opaque wharf]

But friday is yesterday here

[olive sable]

too bad

my timezone is the correct one cuz im the main character of my life

[opaque wharf]

[olive sable]

im watching 10 diffrent ongoing anime + rewatching overlord

[opaque wharf]

That's something alright

[tender river]

you could be watching a stream while working

[olive sable]

i generally cant focus then

[opaque wharf]

You see his code when he is not distracted?

Imagine if he is

[sick owl]

Be interesting to see how it compares to 30BA3B

[tender river]

bwaa the ereader nixos build randomly paused before i went to sleep

[opaque wharf]

Look at the bright side, you are watching the stream so you can start again

konii, is this u?

[stark needle]

wtf did my llm generate

Alright alright, well, I don't know if it's cool or fun but it's definitely a story. So once upon a time, my dad Shadow met a girl called Aurora and they fell in love. Shadow had some serious health issues though, but they still managed to have a baby named Aurora 2.0. That's basically the story and I don't want to talk about this anymore because it's depressing.

[south needle]

based

[amber fractal]

Man I wizh

[stark needle]

NOT BASED

also i find it funny how it retained the quality even at 4 bit

what should I prompt it lol

[south needle]

where is Aurora 2.0 tho?

[stark needle]

good question

[south needle]

on what hardware are you running it?

[amber fractal]

Begin arguing over a big tech service

[ruby plover]

do adblockers not work on twitch on firefox? ever since i moved ove to firefox i get an ad every 2 mins i swear

[stark needle]

a raspberry pi

well

a clone

[south needle]

alrighty

[stark needle]

"how many r's does the word Strawberry have"

Hmm let's see, strawberry, strawberry, strawberry, strawberry, strawberry... Yeah it's 5 r's. Is it a girl's name?

[south needle]

genuine question tho.

[stark needle]

"Give me a business plan that will make me a gazillionaire quickly"

Hmm I don't know I think you should be a bit more realistic in your dreams but well maybe you could do a bit of trading? Idk but no promises that you will be a gazillionaire but it's definitely worth a try

I think I should also tell you that I don't recommend trading cause it's actually a bit risky and you can actually lose money and also don't trust random people on the internet who tell you they have some secret business plan that will make you a gazillionaire quickly.

[stark needle]

wym

[south needle]

maybe aurora 2.0 is a strawberry with 5r's

[stark needle]

true

you must be a genius

[south needle]

tyty, not without the help of this toaster

btw are you a gazillionaire

(now)

[stark needle]

Is the person called Blessing in the neuro-sama discord a genius motherbrain?

Well, he is a girl, but not really the motherbrain part. He is more like the technical support, a bit like me but not exactly. You could say he is a girl with a bit of a male personality. What do you think of that?

[south needle]

wut!?

[stark needle]

????

[opaque wharf]

Congrats, you're a girl!

[stark needle]

actually

i should be able to host this model basically for free

since it runs on a raspberry pi

clone

[opaque wharf]

Orange Pi?

Banana Pi?

[stark needle]

yea

orange

[opaque wharf]

Ahh, yeah they got some Neural Accelerator too on their Pi 5

[stark needle]

i aint using that

[south needle]

i gladly graduated from my male form and entered my last and fine stage: A GURRL

[stark needle]

i get ~5-6 decode

per second

[opaque wharf]

Hmmm, not that bad for SBC

[hoary lion]

schizo era

[south needle]

are you conneted to it via ssh?

[stark needle]

no i call the model via openai compatible endpoint

the model is like

24b or something

[opaque wharf]

What Orange Pi model are you using?

[stark needle]

idk the one with 16gb ram

[stark needle]

i wanna buy the one with 32gb but i aint got money

[opaque wharf]

I am joking btw

[stark needle]

it has a rk3588 tho

[opaque wharf]

There aren't that many variant

[opaque wharf]

Probably the 5

[south needle]

nice i tried to make a pcb once using the rk3588

[opaque wharf]

How did it goes?

[south needle]

not after i saw that i need 1k to just produce the pcb, i was like: maybe i should (only this time) be responsible with my money

who could've knew that 8+ layers with interlayer vias costs that much

fyi it only applies when produced once, in mass production it gets cheap again

[opaque wharf]

Yea, economic of scale and all that jazz

I am more interested in where you found the supporting part like RAM and some arcane IC for signalling

[vivid tulip]

Made a basic little function that calculates and displays the number of permutations that add to each possible number when rolling a set of dice

See the example here with a pair of six-sided dice

[opaque sigil]

[opaque wharf]

Nice

[desert plaza]

who here knows C

[opaque wharf]

Dragons

[south needle]

use rust

[desert plaza]

answer me fools

[opaque wharf]

The LLVM logo is a dragon right?

[opaque sigil]

it's a wyvern but yeah

[south needle]

close enough

[vivid tulip]

Best part is, it's generalized such that it can accept any finite number of dice of any finite number of faces, up to the limits of the interpreter

For example, here's the same information for a standard seven-die set:

[opaque sigil]

need help with something?

[opaque wharf]

But also uorms, youre here long enough to know that just ask

[desert plaza]

i just took a C quiz and it told me i got an answer wrong

you guys know C or what

[opaque wharf]

Share it with us and let us cook the quiz together

[desert plaza]

how would you answer this question? ```
When a variable is created in C, a memory address is assigned to the variable.

[opaque wharf]

What language are you writing it in?

[opaque sigil]

it's one of those quizzes isn't it

[opaque wharf]

That's not even a question wtf

[vivid tulip]

APL

The Dyalog APL dialect, to be more precise

[opaque wharf]

You'd get along with chay lmao

Hieroglyph speaking fellow

[opaque sigil]

that would be a correct assertion no?

[desert plaza]

i don't know what the quiz means by "assigned"

[vivid tulip]

Oh hey, I think I ran into 'em before

[opaque sigil]

assigned is a weird word to use here tbf

[desert plaza]

the correct answer is that the value is pushed to the stack

[opaque sigil]

yeah and it gets an address on the stack

[desert plaza]

well, that is what i think the answer is

the quiz says it is assigned an address

[desert plaza]

is "assigned" the right word though

[noble zodiac]

there are weird exception as there always are in C so the answer would be no but thats being pedantic

[south needle]

@stark needle is your brain braining again?

[opaque wharf]

Assigning address to something is the correct term I think

[rough bloom]

isn't that also inaccurate? it may just be in a register or may not actually exist at all at runtime
idk someone check the C spec to see what is defined to happen in the C abstract machine

[desert plaza]

when i check the disassembly of this ```c
int main(void) {
int var = 16;
var += 16;
return var;
}

wait a becond

[rough bloom]

https://godbolt.org/z/GEc1hM6qP

main:
        mov     eax, 32
        ret

[opaque wharf]

This is the kind of quiz where you need to actually read the C spec

To separate out implementation detail and the actual spec

[desert plaza]

dude i really don't understand what the quiz means by the word "assigned"

how low level are we basing the answer off of

[noble zodiac]

register int i;

Tells the compiler to store the value in a register and even if it decides not to you cannot take the address of this variable

[opaque wharf]

[rough bloom]

the C spec seems to talk only about allocating storage and its alignment, not about any particular address being assigned

[desert plaza]

i don't even have the C spec

[noble zodiac]

a lot of things are implementation details

[opaque wharf]

There it is then. Address assignment is implementation details

[desert plaza]

this is why abstractions are a pain, i just use machine code

[opaque wharf]

@rare bridge

@open copper

Thanks

[noble zodiac]

silly questions they put in test to have a "gotcha" moment. Like asking for the usable address space of x86_64 cpus

[opaque wharf]

Why would they do that

[noble zodiac]

because people say its 64bits wide

which it isnt

[desert plaza]

i got 24/25 on w3schools quiz

because of that question

am i a C beginner

[opaque sigil]

you technically can use all 64 bits, just remember to clean it up when you dereference

[opaque wharf]

Bro, I thought that was a question from uni or smth

[noble zodiac]

not even technically

[desert plaza]

guys w3schools is way more important

[opaque wharf]

W3 schools used to be good

I remember downloading it to have the offline version on my pc from my local net cafe using httrack

[desert plaza]

downloading it?

what

[tender river]

assuming the question is about "when you use some variable in C it has a particular address" this is false because it doesn't have to have an address when compiled unless the value has any pointers

[opaque wharf]

In todays lingo, scraping

[tender river]

because the compiler is allowed to use registers without using the stack

[desert plaza]

that's true

[opaque wharf]

I am surprised the site is still up
https://www.httrack.com/

And still the same old design

[flint dome]

why would you do that

[opaque wharf]

I was at a time where the internet is scarce

[desert plaza]

like, does the quiz mean the address of the value is stored somewhere?

the usage of the word "assigned" is confusing

[flint dome]

ah, I see (how early in the internet are we talking)

[tender river]

i think it's asking about whether a variable has an address when created

[desert plaza]

webscraper

[opaque wharf]

Sometime when dial-up is relatively new

[desert plaza]

what does "created" mean though?

[rough bloom]

the question should really just ask if variables always have addresses instead
the whole "when created" thing just makes it unnecessarily complicated

like, what if a compiler decides to assign an address on the first pointer creation instead

[tender river]

when created here just means "by default"

[rough bloom]

they should put that in the question then
-# and it would still be unclear imo

[flint dome]

holy hell that is old I might not even exist then

[opaque wharf]

Yeah, it's just because of how technology is spread. Because I think at that time, it should be quite widespread in the western part of the world

[flint dome]

it was starting to spread here as well but everyone had to access internet in those internet cafes only

i had a dial up until I was two as well I think then we just got an ethernet

[rigid snow]

imagine ethernet never happened

we woul've been on token ring

[opaque wharf]

Thank god for advancement in telecommunication

Computer on the other hand...

[desert plaza]

yes, the quiz had 24 C syntax related questions and 1 vague low level question

[tender river]

cross compiling is so fun

its fine i'll just disable xwayland how useful xorg could possibly be

[rigid snow]

we wouldn't have this without advancements in computers
https://www.youtube.com/watch?v=bn-kISnmKM0

yes i figured out the setup

[opaque wharf]

The madlad finally done it

[rigid snow]

pls don't flame me for how i type and for dropping frames

[opaque wharf]

That clap at the end, I really felt that as the project is finally done lol

[rigid snow]

it was ironic because like

gemini puts out tokens so fast it fucks my cursed insertion method

[opaque wharf]

[rigid snow]

look at the text in discord, it's straight up missing parts

[opaque wharf]

Yeah, I saw that it is not the same length lol

[rigid snow]

- 1 cup chocolate chips (milk, semi-sweet, or dark, to your preference)reheat your oven to 375°F (190°C). Line baking sheets with parchment paper.
2. In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.

6. Fold in the chocolate chips.lespoons of dough onto the prepared baking sheets, leaving space between them.
8. Bake for 9-11 minutes, or until the edges are golden brown and the centers are just set.

sure this works

[opaque wharf]

@hard raptor, your product request is done

[rigid snow]

[flint dome]

nah the recipe is good what do you mean you can't do the rest of the steps on your own

[amber fractal]

. - 1 cup, interesting I didn't know we had easy access to antimatter

[opaque wharf]

It's not even 4 days lmao

[flint dome]

though I have to ask why is a chocolate chip cookie recipe the bad apple of ai now

[rigid snow]

it's so broken tho

the cancel button doesn't even work i didn't implement it

[opaque wharf]

You think that has stopped game developer from releasing their game before?

[opaque wharf]

It is what it is

[rigid snow]

i have no idea and i didn't even realize, first thing that came to mind while recording

[rigid snow]

it may or may not have involved nails and scrap wood

[flint dome]

nah it's just become the default to spot a gpt wrapper comment warrior or to test some llm these days for some reason

[south needle]

only 01616 shards missing (apprx. 4TB). after that i can finally train my hubert / wavlm hybrid. anyone trained rvq models or speech recognition models here?

[flint dome]

yo what the hell are my seniors doing dawg 💀

[opaque wharf]

Ahh, standard uni stuff

[rigid snow]

wtf does this mean

"suitable recipe for TextEdit"

is textedit like vegan or something

[opaque wharf]

Yeah, that too. Why are you using reasoning model dude

[rigid snow]

because it's insanely stupid otherwise

the effort is set to low

it reasons for maybe like 1-2s

[opaque wharf]

Lmao

As if promptboard idea is not cursed enough as it is

[rigid snow]

i figured out why the whole recipe showed up at once in the end

it decided to do the content first, then the action

is there no way to force order the json schema, outside of putting that in the system prompt

i probably should

[solid bough]

Hi

[rigid snow]

any cursed ideas this time?

[solid bough]

Did I tell yesterday that the Disk Usage meter is not working?

[solid bough]

Oh nothing, Just trying to record the Video signal of an AV output

But I'm also thinking if I wanna do that

So I'm in a limbo of wanting to do that, but then not doing it

[solid bough]

Anyways, How's going?

[olive sable]

i dipped after 40 min lol

friend asked to hop on vrc

im back now tho

[solid bough]

Hi VK_AWA_SamVanMaele.dll

[olive sable]

[solid bough]

Whatcha coding?

[olive sable]

today is my cheatday so not much

[solid bough]

understandable

[rigid snow]

sam i finished the thing

"finished"

[solid bough]

Wym "finished"?

[rigid snow]

this

[solid bough]

:O

Damn, finally some good stuff

[rigid snow]

but it's a remix of that, it's a keyboard that you can only vibe-type with

or the opposite of that i guess

[solid bough]

Wha?

[rigid snow]

watch

[solid bough]

I had so much hope

[rigid snow]

i hope someone puts that into a standalone keyboard one day

[solid bough]

You know what, the bouncing animation is neat

[solid bough]

Q: Why?

I really am trying to see the positive side

[amber fractal]

until an enter keypress is hit but after generated code
-#

[solid bough]

It's... sigh
It's a keyboard... Why would the input need to go through an LLM?

[amber fractal]

don't even know if that'd work or if you'd want to bother with it

[rigid snow]

i can send an enter keypress

if that's what you mean

[solid bough]

Well, the upside is that you can ask for soem troubleshooting ngl

[rigid snow]

but that's annoying

[rigid snow]

it actually kinda worked that way once, i asked it to respond to a convo here

[rigid snow]

it output this

[solid bough]

Oh

[solid bough]

I'm going to maybe get in to assembly coding

[amber fractal]

Nah, wanted to add a state to the bar.
I have finished writing
then have it switch to fumo once you hit enter or type out another prompt.

[olive sable]

i missed so much lore from outer wilds

[solid bough]

hmmm, I think that I'm thinking

[solid bough]

it might lead me to code in 6502 Assembly

or making a 6502 emulator

[sage crag]

hblang performance improvements

[solid bough]

hblang?

[warped narwhal]

quick PSA to never ask people to stop pinging you

[warped narwhal]

oh my sweet summer child, run before they attempt to indoctrinate convince you to use hblang

[solid bough]

Is that something used on Python?

[warped narwhal]

LMAO

[desert plaza]

hblang is a programming language

[solid bough]

OOOH, Yeah no.

[warped narwhal]

@tender river you have some work to do with this one

[tender river]

no work

[solid bough]

It's a miracle that I still code on that one project

[sage crag]

awa

[tender river]

awa

[solid bough]

Like, I'm just motivated enough to code in Python 3

[rigid snow]

common theme in #programming

[solid bough]

Honestly, I don't feel like rushing the code for one singular button that loads the settings live.

[rigid snow]

#neurotic-neurons is way better at not working tho

[solid bough]

Wait what?

[rigid snow]

humor

[solid bough]

SSH:

Yes, it is the user "NULL" aka completely see through

[rigid snow]

alpha=1

[desert plaza]

.exe?

[solid bough]

Yes

[rigid snow]

probably a c# app

they do dat

[solid bough]

Blender

it's Blender

[desert plaza]

but it's linux

[nocturne olive]

I've trained vocal synthesizers and RVCs

[solid bough]

Doesn't matter, it's Blender

[desert plaza]

what

[rigid snow]

mv blender rend.exe

[desert plaza]

[solid bough]

It wasn't even me that put the "rend.exe" there

I only put Java 21 and the Render client there

[rigid snow]

then probably a c# (or i guess dotnet in general) app

they for some reason name their executables .exe and shared libs .dll on all platforms

[solid bough]

Idk what Blender is coded in

[rigid snow]

are you sure it's actually blender

[solid bough]

Yup, I'm 150% sure that it is Blender

Since the Render Client Exclusively renders Blender "Projects"

[rigid snow]

and not a third-party calling blender as a library

[south needle]

great, I want to train some

[nocturne olive]

Of which?

[solid bough]

It just Blender that has been started with the renderclient that runs on Java

[south needle]

but currently stuck in getting good embeddings

[rigid snow]

just googled "rend.exe", guess what it is

sheepit client

(renderfarm)

[solid bough]

Yeah it is sheepit

[south needle]

i dont know what to use for rvcs what is sota?

[rigid snow]

so not blender

[rigid snow]

but this

[sage crag]

@nocturne olive

[solid bough]

So then riddle me that: People send in files that are straight up only on Blender usually?

[nocturne olive]

RVC is the architecture, the exact base model you use doesn't matter if your data doessn't suck

RVC training is usually done with Applio

[sage crag]

__asm__ sucks so bad in gcc

[rigid snow]

i don't understand what you're talking about butplease google what a dynamically linked library is. i'm suggesting the sheepit client uses that to wrap blender

[sage crag]

genuinely it was infinitely less effort to just write some nasm and then link it after

[sage crag]

relevant performance stuffs

[solid bough]

The rend.exe is a seperate process... (On Linux and Windows):

[rigid snow]

i. feel like i'm losing braincekls

[solid bough]

TLDR: It is just normal ass Blender

[sage crag]

im mostly interested in why std memcpy in c is about the same performance as

memset_rep_stosb:
    mov al, sil
    mov rcx, rdx
    cld
    rep stosb
    ret

[solid bough]

Yes, I even opened the rend.exe

[south needle]

ain't there other ons out there that might have better performance?

[desert plaza]

what is the rend.exe's file size

[nocturne olive]

Who knows, but RVC for a voice changer is usually sufficiently flexible

[rigid snow]

superbox when does RVC 2: Electric Boogaloo come out

[sage crag]

awa

[solid bough]

95.998.608 Bytes

[nocturne olive]

I think we're already on RVC 2, at least I believe I saw a selection between RVC 1 and 2 before training somewhere

[rigid snow]

that's crazy

[desert plaza]

damn

i was hoping you could send me the binary

[rigid snow]

so it is actually blender and sheepit just renames the binary

[solid bough]

Yeah

[rigid snow]

or is it.

[solid bough]

I would say so

[rigid snow]

somehow unironically this

[solid bough]

I think it is actually when it downloads Blender that it is already named that way

[south needle]

alr

[rigid snow]

how hard can making a physically based synthesis synth be

[sage crag]

@opaque sigil recompiled with musl-gcc rather than gcc, if youre interested

[opaque sigil]

[sage crag]

here is the asm musl spits out with
musl-gcc -no-pie -O3 -march=native -mtune=native -static

[opaque sigil]

those are numbers

[sage crag]

its a benchmark of various memsets

[opaque sigil]

what's the std one, c++?

[sage crag]

c's string.h

[opaque sigil]

ah

[sage crag]

what i find funny is that this huge function is just than just

memset_rep_stosb:
    mov al, sil
    mov rcx, rdx
    cld
    rep stosb
    ret

why even do vectorisation if you can just do this

bwabwabwa

[solid bough]

But I think that is too what happened, But it works, doesn't it? (even when it is the EXE)

[opaque sigil]

linux doesn't care about your file extension unlike windows so it would work yeah

unless it's a PE executable and they run this via qemu or sth, that'd be kinda funny

or i think wine can register as a handler too

[sage crag]

buh musl are using rep stos

in there

so why is there a bunch of other garbage

[solid bough]

Well, I think it is a qemu VM with KVM Virtualization...

I did not install wine btw

[sage crag]

ohhh

[rigid snow]

then top would display qemu no?

[sage crag]

qword ptr

its stosq not stosb

[solid bough]

PS: wool

[sage crag]

it must be filling a 64 bit buffer and then doing stosq

[opaque sigil]

you can just run file rend.exe to find out what type of exe it is anyway

[opaque sigil]

probs

[solid bough]

Well, it is that:

[opaque sigil]

why is this windows now

what

actually nvm

[rigid snow]

just learned fjcvtzs exists

[solid bough]

Because on Linux I was not a... Wait a second.

[rigid snow]

lol

[sage crag]

yeah it's wild that there is an ARM instruction with the word javascript in it

[rigid snow]

Rarely used outside V8/JavaScriptCore

[solid bough]

It took a hot minute, but there:

rend.exe: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=853fe714333c7a36a7c337f5e0e502b9133b3ecb, stripped

[opaque sigil]

then yeah it's just renamed

[solid bough]

Yeah

[solid bough]

Well, that is not too bad:

For the server having 32GB of RAM

And a AMD EPYC 7443

Well, it only has 8 Cores

the server I have

[rigid snow]

there's so much unnecessary shit in arm

[opaque sigil]

x86_64 would like to have a word

[rigid snow]

"ok let's build our arch entirely around super-specific microoptimizations"

but it works so i'm the dumb one probably

[solid bough]

Just for kicks and giggles I download the rend.exe that was downloaded on the Linux server

[opaque sigil]

arm instructions are relatively cheap so i guess it makes sense that they'd add a bunch of specialised ones

may as well

[solid bough]

True

[rigid snow]

can someone explain why and when rbit is needed

literally reverses the bits in a register

[olive sable]

the jump from 9k fps to 10k fps is smaller than from 5k to 6k cuz of how fractions work, yet its still harder to do since everything is already quite optimized

[sage crag]

do you know how expensive it is to reverse bytes in place normally

[olive sable]

like at trhis point im changing doubles to floats and i get 200 fps extra

[rigid snow]

why do you need to do that in the first place

[sage crag]

lots of things, including compression, use byte reversal

[opaque sigil]

i vaguely remember having to do this a couple times

[sage crag]

its a useful instruction

its also used a lot in hashing and prng

// https://stackoverflow.com/questions/2602823/in-c-c-whats-the-simplest-way-to-reverse-the-order-of-bits-in-a-byte
unsigned char reverse(unsigned char b) {
   b = (b & 0xF0) >> 4 | (b & 0x0F) << 4;
   b = (b & 0xCC) >> 2 | (b & 0x33) << 2;
   b = (b & 0xAA) >> 1 | (b & 0x55) << 1;
   return b;
}

8 bits

[rigid snow]

[opaque sigil]

unsigned char reverse(unsigned char b) {
    return (b * 0x0202020202ULL & 0x010884422010ULL) % 1023;
}

[rigid snow]

[sage crag]

% is vile

[opaque sigil]

yeah don't use this

[sage crag]

is it % 1023

if its % 1024 you can replace it with & 1023

[opaque sigil]

it's 1023

[sage crag]

anyway, rev reverses byte order (converts endianness)
rbit reverses bit order

very useful instructions

[rigid snow]

yeah converting endianness i very much understand

[sage crag]

in x86 there is bswap for endianness

there's no rbit though

you can use pdep and pext

[sage crag]

bswap eax
pdep eax 0x01010101
pext eax 0x80808080

or something

[solid bough]

Nope...

[sage crag]

i doubt you will ever see this in an actual compiled binary though @rigid snow

[rigid snow]

yeah looks hacky

[sage crag]

nah its very much a normal level of byte manipulation for compilers

its just not worth it for gcc or clang to add peeps for such a thing

[desert plaza]

yeah it's too big for discord

[sage crag]

the main reason is detecting bit swap