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pedrob.neocities.org
pedrob
@pedrob.neocities.org
100 followers 430 following 110 posts
só nos compiuter né kkkk 🇧🇷
- ele/dele (he/him);
- pt-br/en

blog: https://pbnjk.github.io
github: https://github.com/PBnJK/
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pedrob.neocities.org
We should all go back to plankalkül
Plankalkül code example, transcribed below: P1 max3 (V0[:8.0],V1[:8.0],V2[:8.0]) → R0[:8.0] max(V0[:8.0],V1[:8.0]) → Z1[:8.0] max(Z1[:8.0],V2[:8.0]) → R0[:8.0] END P2 max (V0[:8.0],V1[:8.0]) → R0[:8.0] V0[:8.0] → Z1[:8.0] (Z1[:8.0] < V1[:8.0]) → V1[:8.0] → Z1[:8.0] Z1[:8.0] → R0[:8.0] END
September 12, 2025 at 12:26 PM
pedrob.neocities.org
Terrible news
Screenshot of the DELTARUNE script showing that the line "* Lightners only want one thing and it's disgusting. I mean delicious" is, in fact, in the game
August 5, 2025 at 2:27 AM
pedrob.neocities.org
engagement bait no cheating post ur lock screen

one of my fave albums, Introspection by Luiz Bonfá. beaaaaautiful solo acoustic guitar...but also this insanely cool cover art???
Screenshot of my phone lockscreen. The wallpaper is the album art for Luiz Bonfá's Introspection, depicting a giant statue of a head sitting on an island surrounded by a green sea. The head is surrounded by a low wall, where a smaller statue of an anthropomorphic chicken playing guitar can be seen adorning one of the wall columns. The top of the giant head statue is open, showing a scene of birds flying over a blue sky and yellow sun.
July 26, 2025 at 1:33 AM
pedrob.neocities.org
the worst thing about developing a game for your fantasy console is that you are constantly having to ask yourself: "is this a bug in the *game* or in the *engine*?"

anyways, here's the beginnings of a snake clone

#fantasyconsole #gameengine #gamedev #webdev
July 25, 2025 at 1:35 PM
pedrob.neocities.org
btw, here's the source code for the demo if anyone is interested.

also, the code for the console itself is over at github.com/pbnjk/frame
Screenshot of assembly source code. Below is a transciption of the source code (beware screen readers!) .addr 0x0200 @str_prompt .byte 't','y','p','e','!',0 @str_buttons .byte '<','v','^','>','A','B','S','M' @init sei $0 # No interrupts mov %fffc, @<irq # Set up IRQ (lo) mov %fffd, @>irq # Set up IRQ (hi) call @ktxt_clear # Clear the screen sei # Allow interrupts ret # Outputs button status to the screen # $4 : Button @btn_status # Print button glyph mov $8, @str_buttons, $4 call @ktxt_putch # Print space mov $8, ' ' call @ktxt_putch mov $5, $2 # Copy input rsh $5, $4 # Shift input bit right and $5, 1 # Mask it mov $8, '0' # Start with '0' equ $5, $0 # Is the key pressed? brt @_btn_status_f # If not, skip inc $8 # Set $8 to '1' @_btn_status_f call @ktxt_putch # Draws the character # Print space mov $8, ' ' call @ktxt_putch ret @main call @init # Draw the prompt mov $8, @<str_prompt mov $9, @>str_prompt call @ktxt_print @_loop equ $3, 0 brt @_loop sei $0 mov $2, %e700 # Read input mov $3, $0 # Clear update flag mov $4, $0 # Button index mov %e7bf, 0b00001000 # Cursor to (0, 1) @st_loop call @btn_status # Print button status inc $4 # Tick index lss $4, 8 # Still in button range? brt @st_loop # If so, loop sei jmp @_loop @irq mov $3, 1 ret
July 22, 2025 at 10:18 PM
pedrob.neocities.org
got a little fantasy console thing going. it uses a custom assembly language.

it's up at pbnjk.github.io/frame, but there's no documentation yet. so instead, here's a demo program I wrote to test user input. i can already write snake!

#fantasyconsole #gameengine #gamedev #webdev
July 22, 2025 at 10:06 PM
pedrob.neocities.org
working on a little Deltarune fangame! it's a Mother 1-styled prequel/side story/dream adventure thingy. Here's a video demo (don't mind the quality, please.)

(there's also a demo you can find on gamejolt, but it's so old it's not even the same game...also it's real bad...)

#deltarune #fangame
July 18, 2025 at 2:36 AM
pedrob.neocities.org
very serendipitous timeline placement (also, agree)
Screenshot of Bluesky timeline. A Nancy comic strip with the insufferably long-winded nerd character is right above the "I fucking hate nerds man" post
May 21, 2025 at 12:21 PM
pedrob.neocities.org
It also let's you add a widget with the "article of the day" to your front page, which means I've been waking up everyday to a neat new article to read!

For example, today's was about a Dr. Jekyll and Mr. Hyde play. Look at this picture!!!
Picture of Richard Mansfield, in his roles as Dr. Jekyll and Mr. Hyde. The photo, taken using double exposure, shows both characters at the same time. Dr. Jekyll is upright, holding a hand up. He looks respectable. Mr. Hyde, on the other hand, is hunched over and bears a scary expression. He has claw-like hands. Both are dressed in (what appears to be) the same black overcoat.
April 21, 2025 at 5:47 PM
pedrob.neocities.org
further progress on my ext2 parser! here's a video to show off some new features (everything other than ls)

#c #cprogramming #programming #osdev #linux
January 14, 2025 at 3:08 PM
pedrob.neocities.org
very dumb, but just got the ls command on my little ext2 parser working!!!! i could cry it was so hard lol

i have hopes that the other commands will be easier to implement tho...

#linux #c #cprogramming #programming #osdev
Screenshot of a terminal showcasing the "ls" command correctly displaying the contents of a directory
January 10, 2025 at 1:09 AM
pedrob.neocities.org
Wrote a small tool for inspecting ELF files (a readelf clone.)

It's a pretty fun project, and actually not that hard! Makes for a nice weekend passtime...

github.com/PBnJK/elfp

#cprogramming #c #programming #code #linux
Screenshot of a terminal window after running the "elfp" utility, displaying the information fetched from the executable.
January 3, 2025 at 12:50 AM
pedrob.neocities.org
oh I'm struggling. Tried to do today's #AdventOfCode on my school notebook 😭😭

Might just work? The "p" stuff is a bit inconsistent because I changed my mind on how it should work halfway through. it also depends on if the input is how I think it is..
Photo of an open school notebook with python code scribbled in red pen
December 6, 2024 at 11:15 AM
pedrob.neocities.org
Found a way to do part 2 the way I originally wanted to!!! Look at this beaut now...
Code in the Julia programming language showing an array being sorted and having its middle items summed. Transcription: compare(a, b) = a ∈ rules[b] sort!.(invalid, lt=compare) total = sum(parse(Int64, x[length(x) ÷ 2 + 1]) for x ∈ invalid) println("- $total")
December 5, 2024 at 6:40 PM
pedrob.neocities.org
Day 5 of #AdventOfCode in Julia done! See the full solution (and other languages) here:
github.com/PBnJK/aoc/tr...

Here's a couple lines I found funny (again man, those dotted functions!)
Code written in the Julia programming language. Lots of very nested functions. Transcription below: r, p = split.(strip.(split(Util.getinputn("day05.txt"), "\n\n")), "\n") rules = DefaultDict(Set) for rule ∈ r f, t = split(rule, "|") push!(rules[f], t) end
December 5, 2024 at 6:22 PM
pedrob.neocities.org
Happy birthday PlayStation! 🎂
I wasn't born in time for ya, but I've played enough of your games to know you deserve all the praise you get :-)

Here's a .gif from when I tried to make a PS1 tech demo...it was surprisingly hard to get a simple model rendering! Very fun though
December 3, 2024 at 11:52 AM
pedrob.neocities.org
só no python. Implementei uma em C recentemente para um projetinho então foi bem rápido, uns 2-3 minutos. por mais desafios como esse!
Screenshot mostrando código Python, com uma implementação simples de uma calculadora RPN. Transcrição do código: import operator def rpn(): ops = { "+": operator.add, "-": operator.sub, "*": operator.mul, "/": operator.truediv, "%": operator.mod, } while True: try: stack = [] for value in input(">> ").strip().split(): try: stack.append(int(value)) except ValueError: b, a = stack.pop(), stack.pop() stack.append(ops[value](a, b)) print(stack.pop()) except (EOFError, KeyboardInterrupt): print("\nTchau :-D") return rpn()
November 21, 2024 at 12:24 AM
pedrob.neocities.org
KKKKKKKKKKKKKKKKKKKKKKKKK
i love #cmake e #docker 😍

(a culpa é totalmente minha (eu digitei um número errado))
Print de um terminal. Há muitas linhas mostrando um processo de compilação que estava em andamento, com vários arquivos. Uma contagem ao lado revela que, ao todo, 1786 arquivos foram compilados. Logo abaixo do último arquivo, há uma mensagem de erro, informando que o processo não pode ser concluído.
November 13, 2024 at 2:23 AM
pedrob.neocities.org
As promised, some beautiful #art (not AI! Just procedural...)
See my GitHub for the functions responsible for generating them :-D

#proceduralart #generative
Image depicting a gradient. Each corner has a color which blends with each other quite beautifully. The colors of the corners are, from the top-right, clockwise: green, blue, yellow, pink. Image which, if you squint, depicts a sprawling triangular field of garish reds and greens. The horizon separates the top and bottom into two sections, resembling a green-ish sky on the top and a red/wine field on the bottom. A 1 pixel thick line runs vertically through the center of the image, but I think it's a bug in my code. Don't mind it :-) An image depicting a bunch of roughly geometric stuff. There is a vertical rectangle on the center, with diagonal stripes running across the whole image. There is also two 1 pixel thick lines which run across the center of the image, both horizontally and vertically, giving the appearance of the image being split into 4 panes. A psychedelic image of reds and blues, with lines and curves converging into the center. It looks sort of like when you time travel in Chrono Trigger.
November 5, 2024 at 6:13 PM
pedrob.neocities.org
Programming work! Using the "Crafting Interpreters" book and this (github.com/autoplus-lan...) wonderful project, I got a little register-based VM going! Hoping to make a small BASIC implementation for the #playdate...

Look! Barely comprehensible output!!!
I love #programming...
A screenshot of a PlayDate's monochrome display. Some text is displayed, arranged in two columns side-by-side. The transcript below is littered with strange punctuation, so it may not come across correctly to screen readers. The gist of the screenshot is that we are assigning a number to a variable, adding that variable with another number and storing it into another variable, and then finally storing the sum of those two variables into yet another variable, then printing all of them out. We then print all three variables, which all show the expected values! Direct transcript follows. The text on the left column reads: CODE: T = 3 T2 = T + 5.4 T3 = T + T2 PRINT T PRINT T2 PRINT T3 The text on the right column reads: OUTPUT: R[0] := K[128] R[1] := R[0] + K[129] R[2] := R[0] + R[1] 3 8.4 11.4 EXIT 0
October 30, 2024 at 12:38 AM
pedrob.neocities.org
Decided to start working through the old Advent Of Codes, both in preparation for this year's, and because it's my idea of fun :P

Still in 2015, but Day 19 kicked my ass! Had to read a write-up on a reddit post to even understand the second star...

Well, you live and you learn. Homestretch now!
A screenshot of an ASCII Christmas tree from the "Advent of Code" website. The tree's leafy part is divided in 25 sections, with numbers going from 1 to 25 off to the side. Days 1 to 19 have two stars next to them, indicating that those day's challenges are completed. Their respective tree sections are colored in vibrant green, red, yellow, orange and blue, mimicking Christmas decorations. Days 20 to 25 have no stars next to them, and their respective tree sections are devoid of color.
October 15, 2024 at 3:18 AM
pedrob.neocities.org
É triste que o pessoal do prog rock não dê tanta bola pro cenário nacional... Som Imaginário dá paulada em muito gringo, ok???
Capa do álbum "Matança do Porco", da banda Som Imaginário. É uma foto de uma mesa, repleta de copos vazios e garrafas, um cinzeiro e um abridor de garrafa. É composta por uma paleta primariamente amarela.
September 1, 2024 at 10:59 PM
pedrob.neocities.org
the dichotomy of man
A screenshot from github. It shows two commits made on August 31st, 2024. The first one, comitted 6 hours ago, reads: "good lord", in all lowercase characters. The second one, comitted 1 minute ago, reads: "TREE TIME BABYYYYYYYYY". That's "baby" with the letter Y 9 times. Both of the commits were made by one "PBnJK" (that's me)
September 1, 2024 at 1:26 AM