Guest122 [Lexaloffle Blog Feed]

Assemblo8

Sun, 12 Nov 2023 19:10:05 UTC

Just a fun or education tool in Pico-8.
It is meant to mimic assembly (no particular version) and has by default 16 registers and 18 commands.
Registers aren't labelled, but they are 1-16.
It is easy to expand or reduce if you want to.
I think it is turing complete, although I am not sure.
To type use the keyboard (no support for mobile), enter to make a new line and right arrow to run.

assemblo8

by Guest122

[Click to Play]

List of commands:

mov [reg_num] [dest_reg] - copies from [reg_num] to [dest_reg];

push [reg_num] [num] - copies [num] onto [reg_num]. If [reg_num]==NR, then modifies number of registers. If [num] is smaller then the current number of registers, the last ones will be deleted. Otherwise, registers will be appended to the end;

and [reg_num_1] [reg_num_2] [dest_reg] - performs logical AND on [reg_num_1] and [reg_num_2] and saves the value onto [dest_reg];

add [reg_num_1] [reg_num_2] [dest_reg] - adds [reg_num_1] and [reg_num_2] and saves the value onto [dest_reg];

sub [reg_num_1] [reg_num_2] [dest_reg] - subtracts [reg_num_2] from [reg_num_1] and saves the value onto [dest_reg];

mul [reg_num_1] [reg_num_2] [dest_reg] - multiplies [reg_num_1] and [reg_num_2] and saves the value onto [dest_reg];

div [reg_num_1] [reg_num_2] [dest_reg] - divides [reg_num_1] by [reg_num_2] and saves the value onto [dest_reg];

neg [reg_num] [dest_reg] - negates [reg_num] and saves it onto [dest_reg];

dec [reg_num] - decrements [reg_num] by 1;

inc [reg_num] - increments [reg_num] by 1;

or [reg_num_1] [reg_num_2] [dest_reg] - performs logical OR on [reg_num_1] and [reg_num_2] and saves the value onto [dest_reg];

xor [reg_num_1] [reg_num_2] [dest_reg] - performs logical XOR on [reg_num_1] and [reg_num_2] and saves the value onto [dest_reg];

shl [reg_num] [num] [dest_reg] - performs logical LEFT SHIFT on [reg_num] by [num] places and saves the value onto [dest_reg];

shr [reg_num] [num] [dest_reg] - performs logical RIGHT SHIFT on [reg_num] by [num] places and saves the value onto [dest_reg];

cmp [sign] [reg_num] [num]- compares [reg_num] to [num] using [sign]. If true, skips the following line. List of values for [sign]: 1-greater than; 2-equal to; 3-less than; 4-greater than or equal to; 5-less than or equal to; 6-not equal to;

cmpsb [sign] [reg_num_1] [reg_num_2] - compares [reg_num] to [reg_num_2] using [sign]. If true, skips the following line. List of values for [sign]: 1-greater than; 2-equal to; 3-less than; 4-greater than or equal to; 5-less than or equal to; 6-not equal to;

jmp [line_num] - jumps to [line_num] before or after this one, without triggering lines in between;

halt - stops the program. Required at the end of any program, or else, an error will appear.

SECS-OS

Tue, 17 Oct 2023 19:25:14 UTC

After two months-ish of planning and coding....
I introduce to you...

SECS-OS!

SECS (Securely Encrypted Computer System, don't quote me on this) is a successor to my previous P8-DOS.
Featuring:
A GUI;
A terminal that is definitely not scuffed;
A text editor that is also not scuffed;
A calculator that is actually decent?;
And most importantly:

A login page!

SECS has a built-in weird hashing-like algorithm, to protect you and your system.

You are able to see any folder from within SECS (no idea why it works) and generate .txt files that you can later open.

To make a new line in the text editor, use the right arrow key.
To save the file, use the left arrow key.
To run a command, use the right arrow key.

Due to the high security of this project, the operating system can't be installed directly.
If you would like to give it a try, here it is:

secs_login

by Guest122

[Click to Play]

Chr() list

Wed, 13 Sep 2023 18:49:45 UTC

Just the list of chr() numbers and corresponding outputs.
Some are invisible, like chr(8) since this is backspace or chr(129)(▒) for no reason (?).
https://www.lexaloffle.com/bbs/files/62268/testing.txt.
As the above file is weird, you can check it out on google drive:
https://drive.google.com/file/d/1DdpsxRyfPPM7pB-ukgd8aD_0eL-WqgrU/view.

Circuit Simulator

Mon, 28 Aug 2023 16:23:03 UTC

Small circuit sim I made inspired by Virtual Circuit Board.
Includes wires, lights, switches, and gates and not gates.
Everything should feel intuitive.

If you find any bugs, please let me know!

Version 1.1 is here!

Changelog:

circuitsim

by Guest122

[Click to Play]

Mobile version:

circuitsimmobile

by Guest122

[Click to Play]

Version 1.0:

Changelog:

As a challenge, try to make a smaller xor gate.
How tiles are counted:

Xor gate list: (1.0+)

Things I probably should add:

Random Password Generator

Sun, 13 Aug 2023 14:06:35 UTC

Extremely simple password generator.
Before anything else, I want to say, that since it uses the built-in rnd() function, it will(more than probably)be insecure. If you want extra security, just don't... use it.
It features 7 character sets.
And that is pretty much it.

passwordgen

by Guest122

[Click to Play]

Encryption

Wed, 09 Aug 2023 15:58:35 UTC

Small cart that features simple encryption/decryption methods.

encryption

by Guest122

[Click to Play]

HackTheCart 3

Fri, 28 Jul 2023 12:53:12 UTC

Hone your cart hacking abilities with this HackTheBox-like cart!

Simple premise:
You control a square which can move around the screen.
Your goal is to move out of the top left corner and after, without triggering btnp(), get back into the top left corner.
Sounds simple enough.
In fact, I will even let you look at the code!
It is very difficult, so I made an easier version of it for you to try out first.
You will need to download the cart to solve the challenge.

Have fun solving this challenge!

Easier version (try this one first!):

hacking4_1

by Guest122

[Click to Play]

Solution:

Hard (I may or may not have solved it):

hacking4_2

by Guest122

[Click to Play]

Solution:

Mutation Nation

Tue, 13 Jun 2023 15:01:27 UTC

My submission for the Summer Slow Jams 2023: Idle

Mutation Mayhem (a prototype)
Its kinda like a base building/defense game.
I dunno anymore. You can play it yourself if you want.

mutation_nation

by Guest122

[Click to Play]

Available on itch: https://guest122ev.itch.io/mutation-nation

Better Chatbot

Thu, 06 Apr 2023 13:26:41 UTC

LIDA: the sequel

This is a better chatbot (i hope).
Same kind of idea: you write and Lida responds.
You will need to press ➡️ to make Lida respond.
Hopefully, it is less chatbot-y.
It saves your conversation in a p8l file called chatp.p8l.
Again, avoid using punctuation (?,.;!").
Colons and apostrophes should work.

Second version:

Small update with more prompts;
Removed spritesheet.

chatp

by Guest122

[Click to Play]

First version:

chatp

by Guest122

[Click to Play]

Code is now much more readable and efficient.
Removed some prompts but added a lot more.
E.g.: removed "who is your creator" prompt;
removed "what came first: the chicken or the egg" prompt.

Maze Solving Algorithms

Sun, 05 Feb 2023 11:57:11 UTC

Maze solving algorithms

Random

randmaze

by Guest122

[Click to Play]

Note:

Takes ages, so I made it faster

Rating:2/10

Breadth-First Search

bfsmaze

by Guest122

[Click to Play]

Note:

Actually not bad, although will search a lot

Rating:4/10

Depth-First Search

dfsmaze

by Guest122

[Click to Play]

Note:

Worse than BFS, because it misses nearby targets

Rating:3/10

Wall-Follower

wall_follower

by Guest122

[Click to Play]

Note:

Might fail with loops

Rating:4/10

Dead-End Filling Algorithm

dead_end_filling

by Guest122

[Click to Play]

Note:

Will fail with loops

Produces a path

Rating:5/10

A*

Too lazy to code my own.
Instead, check this one made by @dw817:

https://www.lexaloffle.com/bbs/?pid=115379#p

Collatz Conjecture

Sat, 14 Jan 2023 15:01:45 UTC

Program which tests every number from 2 to 0/0 for the collatz conjecture(yes, I know we already proved up to 2^68).
Makes a sound if the number does follow the conjecture.
To the right is the number it is testing, and to the left is the operation results.
Saves the results to a file.
And I didn't try to make memory efficient.

collatz

by Guest122

[Click to Play]

Fixed producing negative numbers.

collatz

by Guest122

[Click to Play]

Without the fix.

Chatbot

Sat, 10 Dec 2022 17:33:05 UTC

A small chatbot.
It uses a dictionary of text and responses, so it can't reply to everything.

Should work online.
Try to not use punctuation (?,.;!"), as that isn't something it understands too well. Apostrophes and colons should be fine though.
Please, leave any errors or suggestions below as I am trying to make it better.

Better version of the chatbot as it is a bit less chatbot-y.
You will need to press ➡️ to say what you wrote.

chatp

by Guest122

[Click to Play]

chatbot

by Guest122

[Click to Play]

Note: It isn't an algorithm or loneliness defeating, Lida chose it's own name and doesn't understand these concepts.

Clicking a menuitem tries to call _superyield

Fri, 18 Nov 2022 19:23:08 UTC

In my code, I used menuitems as a way of interaction with the game.

When you run it, if you go to the command line, set items.planks to true and go back to the game and pause, press level 1 and then press move, it shows an error, about trying to call _superyield with flip().

I don't know if this is something bad or not, as I don't understand yield(), _superyield and flip() since I never used any of these.

The error:

The code (tried to remove the useless stuff):

function _init()
    menuitem(1,"level 1",level1)
    items={
        planks=false
    }
end

function _draw()
end

function level1()
    menuitem(1,"move",move)
end

function move()
    return true
end

Prey Vs Predator

Sun, 13 Nov 2022 19:40:06 UTC

A small simulator of Prey Vs Predator.

All creatures can only move in one of four directions: up, down, left, right.
Moving consumes an energy point.

If a prey runs out of energy, it can't move that turn.
It may choose to not move even with energy.
If any of these happen, then it gets 1 energy point.

Predators also can run out of energy. It they do, they die. To get energy, they need to eat prey. If they do, they get full energy and 2 more predators appear.

The objective of prey is to outlive the predator.
The objective of predator is to kill all prey (yes, I know that they die after that. Just ignore that for now).

If a prey is next to a predator (not diagonally), has energy and wishes to move, it will move away from the predator.
If a predator is next to a prey (not diagonally) and wishes to move, it will eat the prey, but if it had 1 energy before eating, the prey survives and the predator dies.

If none of the above are met, the creatures will move around randomly.

Pretty much everything is customisable, although it might run slower.

If you wish (or made a huge map), you can move the cam with the arrow keys.

Added prey splitting. They split every set amount of turns (configurable) and have a random chance of splitting (also configurable).

prey_vs_pred

by Guest122

[Click to Play]

Doesn't need pico-8 terminal. Yay!

Without prey splitting version:

prey_vs_pred

by Guest122

[Click to Play]

Virus

Sat, 12 Nov 2022 17:55:51 UTC

A sort of computer virus.
It is able to spread and has a maximum depth of 3.
It won't spread to other hosts but is able to travel up between folders (don't know why).

As soon as you run it, it begins the process, so be careful, I guess.

Cures

Deleting the cartridge,
Renaming everything important to you so that the name has a -(hyphen), including folders,
Or putting the cart in a folder with nothing in it.

UFNR

by Guest122

[Click to Play]

UFNR doesn't (in this case) stand for anything.
Definition of computer virus (for the nerdy ones): a piece of code that can duplicate itself, with usually a harmful intention or effect. UFNR can spread but doesn't really do anything else.

Flood

Fri, 11 Nov 2022 19:25:15 UTC

Sorry, I guess? is a

file flooder.

And as usual, it needs to be executed in the app, otherwise it just displays Sorry, I guess?
This is because it uses ls().
It is my biggest cart ever with,

Drumroll please...

32875 characters

158% compressed size(almost).

10 file version:

flood_1

by Guest122

[Click to Play]

64 file version:

flood

by Guest122

[Click to Play]

Sorry for any damage.
It is harmless and can be removed.

Btw, any way to make more efficient?

Jelpi pain

Thu, 10 Nov 2022 16:04:31 UTC

An edit of the Jelpi demo to showcase glitches and bring pain to all!

jelpipain

by Guest122

[Click to Play]

HackTheCart 2

Tue, 01 Nov 2022 10:58:50 UTC

Hone your cart hacking abilities with this HackTheBox like cart!
Your objective is to get to the hidden link using the terminal.
I suggest you don't look at the code before solving it as that will ruin the fun.
Also, you don't have to brute force the link. There is a genuine solution.

What you know:
All the links are stored in a table called links, but the links are local. What now? Hmm...

Have fun solving this challenge!

hacking2

by Guest122

[Click to Play]

P8-DOS

Sun, 30 Oct 2022 19:09:14 UTC

Discontinued

A MS-DOS inspired command line VM.

Features:
Check date and time,
View files,
Make new files,
Delete files,
Recycle bin so you don't accidentally lose your files,
Explore the virtual web, which may or may not delete all your files,
Make a custom website,
And a secret function which isn't documented.

There sadly isn't support for folders yet.
I tried to maintain the usual names, but I didn't want to mess around, changing built-in functions.
Remember h() for help!

V. 1.2:

Changes:
Added customweb()

p8dosv1_2

by Guest122

[Click to Play]

V. 1.1:

p8dos

by Guest122

[Click to Play]

Note: When exploring the web, maybe protect your ears.
I am terribly sorry if the sounds cause some problems.
Also, don't store important data in the VM, because it may get deleted.
And as usual, you need to use the p8 terminal.

HackTheCart 1

Wed, 19 Oct 2022 17:45:09 UTC

Hone your cart hacking abilities with this HackTheBox like cart!
Your objective is to get the admin password using the terminal.
I suggest you don't look at the code before solving it as that will ruin the fun.
Also, you don't have to brute force the password. There is a genuine solution.

What you know:
All the accounts and their passwords are stored in a table called users.

Have fun solving this challenge!

hacking1

by Guest122

[Click to Play]

You will need to download the cart so you can use the terminal on it.

Guest122 [Lexaloffle Blog Feed]

Assemblo8

SECS-OS

SECS-OS!

A login page!

Chr() list

Circuit Simulator

Version 1.1 is here!

Version 1.0:

Score to beat: 34 units of enclosed area.

Solutions by thePixelXb_ and stadam (in order)

https://www.lexaloffle.com/bbs/?uid=67356

https://www.lexaloffle.com/bbs/?uid=75813

thePixelXb_'s solution

stadam's solution

If you didn't understand any of these, here is an example:

Random Password Generator

Encryption

HackTheCart 3

Hone your cart hacking abilities with this HackTheBox-like cart!

Have fun solving this challenge!

Easier version (try this one first!):

Solution:

Hard (I may or may not have solved it):

Solution:

Mutation Nation

My submission for the Summer Slow Jams 2023: Idle

Better Chatbot

LIDA: the sequel

Second version:

First version:

Maze Solving Algorithms

Maze solving algorithms

Random

Note:

Takes ages, so I made it faster

Rating:2/10

Breadth-First Search

Note:

Actually not bad, although will search a lot

Rating:4/10

Depth-First Search

Note:

Worse than BFS, because it misses nearby targets

Rating:3/10

Wall-Follower

Note:

Might fail with loops

Rating:4/10

Dead-End Filling Algorithm

Note:

Will fail with loops

Produces a path

Rating:5/10

A*

Collatz Conjecture

Chatbot

Clicking a menuitem tries to call _superyield

Prey Vs Predator

A small simulator of Prey Vs Predator.

Doesn't need pico-8 terminal. Yay!

Without prey splitting version:

Virus

Cures

Flood

file flooder.

Drumroll please...

32875 characters

158% compressed size(almost).

10 file version:

64 file version:

Jelpi pain

HackTheCart 2

P8-DOS

Discontinued

HackTheCart 1