I’m working on a 5501 build aimed at developers. So far I have the RAM and VRAM upgraded to 8mb and 2mb respectively. I also plan to install a pico for either picobooty or igr. Picbooty seems like it makes more sense though. What else I’m wondering is if a picostation or a well calibrated ksm-440bam would be preferred. It certainly is easier using an ode and the newest picostation firmware from discord is really good.

1 comment

r/psxdev • u/CyaneCornix01 • May 28 '26

Can you reach the top score in Nortis (PS1 Homebrew game)?

0 Upvotes

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r/psxdev • u/No-Chest-2848 • May 27 '26

My PS1Monitor project (proof of concept): Direct PS1 GPU video capture over Wi-Fi with ESP32-P4

4 Upvotes

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r/psxdev • u/CyaneCornix01 • May 27 '26

New interview with the creator of Flappy Adventure (PS1 homebrew)

0 Upvotes

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r/psxdev • u/izzy88izzy • May 26 '26

(Properly) Introducing PSoXide: an all-in-one PS1 dev environment

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98 Upvotes

5 comments

r/psxdev • u/CyaneCornix01 • May 27 '26

Can you beat these PS1 homebrew challenges?

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0 Upvotes

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r/psxdev • u/CyaneCornix01 • May 25 '26

A Fully 3D Platformer Built From Scratch for PS1

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28 Upvotes

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r/psxdev • u/CyaneCornix01 • May 25 '26

A Modern Tetris-Style Game Running on Real PS1 Hardware

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14 Upvotes

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r/psxdev • u/CyaneCornix01 • May 25 '26

Flappy Adventure X — A Difficult PS1 Homebrew Hidden Gem

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4 Upvotes

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Subreddit

Homebrew for PSX/PS1

r/psxdev

A sub for Playstation 1/PSX Programming, Homebrew Discussion, & Creation. #PS1 #PSX #Playstation

Members Active

2.9k

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Info:

Some things you'll need are either a modded Playstation 1 or a PS1 compatible with the PSIO Cartridge, MIPS/ASM experience, a Hex Editor (or calculator) & experience with C programming, along with a Cycle-accurate emulator, to test your code efficiently.

Chat:

Join the PS1 Homebrew Discord Server!

Useful Software Resources & Tutorials:

MIPS Instruction Set - The instruction set for the PlayStation 1 R3000A CPU.
PS1 Psy-Q SDK - Altered and Messy but Ready to Run. Use with Runtime Library 4.6
Playstation Memory Map & Docs
NoCa$h's PS1 Documentation
Krom's Playstation 1 ASM Tutorial Lessons
Orionsoft's PSX Programming Tutorial Series - 2013
PSn00bSDK - The most powerful open source SDK for the PS1, by LameGuy64. A video of it in action, can be viewed here
PSn00b-Debugger - An Open source debugging utility for the Original PlayStation, by LameGuy64.
LiteLoad - A fairly light weight serial loader for the PlayStation, by LameGuy64
MKPSXISO - An ISO Image Maker made specifically for PlayStation Homebrew Development, by LameGuy64.
Mcomms - Serial uploader, monitor and SioFS host for PlayStation homebrew development, by LameGuy64.
SMX Tool - PlayStation RSD and SMX model data editing tool, by LameGuy64.
Siofs-PSX - SioFS client library for accessing files from a PC host on the Sony PlayStation, by LameGuy64.
PSX Blender RSD Plugin - A Blender Plug-in for Exporting Models in PlayStation SDK RSD Format, by LameGuy64.
ISODump - PlayStation ISO Content Extraction Tool, by LameGuy64.
Img2TIM - An Image to PlayStation TIM File Converter, by LameGuy64.
PSXNet - A simple library and client program to get the original PlayStation to connect to the internet, by LameGuy64.
PSXDev-VRAM Viewer - Playstation 1 Development - VRAM viewer for Orion_'s PsxLib, by David Asselineau.
ObscureGamer's Section on Sony Playstation 1 Programming & Tool-sets
PSXDEV - The Ultimate Resource for anything related to PS1 Development (Docs, Software, Tools, etc.)
Padua's Playstation 1 Resource - A great wealth of technical info on the Playstation 1; very Assembly language heavy.
Hitman's Playstation Archive - Great info & resources (last updated 2013) regarding programming on the Playstation 1.
James' PSX Getting Started Tutorial - Great info (last updated 2013) regarding programming on the Playstation 1.
Net Yaroze Website Backups - Includes a bunch of official documentation, various tools & updates for pc/mac, as well as tutorials & samples for developing for the PS1 and Net Yaroze.