Welcome to ISSOtm's warehouse!

Hi! I'm Eldred. I love programming, exploits, old game consoles, and writing up!

I spend a lot of my free time programming, so we're storing a lot of code around these parts. You can also peruse some of my projects below.

I've been tinkering with the old Game Boy for about 5 years now, so I became a fairly active member of GB dev. I also made an incomplete but still good Game Boy programming tutorial.

Projects


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Fibrs

Fibrs, to be pronounced “fibers”. A dev log of my developing a REST API in Rust over the course of a week.

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TheZZAZZGlitch April Fools 2019

Is it a CTF? Is it a ROM hack? No, it’s both! It’s Fools2019!

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Nintendo DS Action Replay Encoder

This online tool allows converting Nintendo DS Action Replay cheat codes as you find them on the Web, to and from a pseudo-code format! This should help you understand how a given code works, and perhaps tweak it yourself?

The code was written using a code creation user manual found on Datel’s website, though I have since then lost this document.

This is written entirely in vanilla JS, and although the parser is a little strict, it’s quite usable.


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Pokémon exploits

Pokémon games are… not very well programmed. This leads to them being very broken, especially the first generation.

Here is a list of things I’ve written up on related to glitching the hell out of the first generation Pokémon games:

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Quartet cracktro

Quartet is a great homebrew Game Boy game, published by Mackerel Interactive in early 2021. So why not do like the good old days and crack it?

In this post(-mortem?), I’ll explain what went into creating this cracktro. I’ll keep the most technical details out of the way until the end of this post, so it should still be a good read, even if you don’t have a technical background.

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Smooth-Player

Smooth-Player is a system that allows stereo 4-bit sample playback at variable rates up to ~16 kiHz on Game Boy, Game Boy Color, and Game Boy Advance consoles.

Sample sample:

This post will detail how the system works; if you only seek to use or get a demo of the system, please follow the link above.

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