lmorchard - Pebbling Club 🐧🪨

The Sorbus Computer

xayax.net
2025-04-18T17:50:20.501Z
6502 hardware diy hacks retro

Notes

The Sorbus Computer started with the idea on building a very simple and cheap 65C02 based computer. It was intended to show the operation of the CPU for a talk about historic computers during a talk and workshop (slides blow).

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SvOlli/sorbus: The Sorbus Computer is a very simple 65c02 computer for tinkering and learning

github.com
2025-04-18T17:50:18.589Z
retro diy hacks hardware 6502

Notes

The attempt to build a very simple 65C02 based computer by utilizing a Raspberry Pi Pico clone for the rest of the functionality.

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Michael Kohn - modern 6502

www.mikekohn.net
2025-04-11T19:50:10.313Z
retro 6502 hardware diy

Notes

while doing my daily hackaday.com reading, I discovered the W65C265SXB board, a modern microcontroller with a 6502 (actually 65C816) at its core. I did a really good job resisting buying one for a while, but eventually gave in. To put this board to use I decided to put up this page with 3 small projects (added a 4th more recently) to show off some things that can be done with this newer 6502 chip

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The Elite source code family tree - Elite on the 6502

elite.bbcelite.com
2025-03-01T05:39:17.901Z
elite retro gaming 6502

Notes

In this article, I'm going to try to work out exactly how 6502 Elite was developed over the years, by looking for clues in the original source code and digging through the game binaries. Software archaeology, here we come...

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PERSEUS-8 homemade 6502 computer | Hackaday.io

hackaday.io
2021-04-28T19:08:02.000Z
hardware retro hacks 6502 imported:pinboard

Notes

Since this computer uses a CPU that is about 45 years old, it cannot compete at all with today's computers in terms of performance. However, I wanted the PERSEUS-8 to have functions and appearance that would remind us of concepts that today's computers has lost.

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{ "author": "Mitsuru Yamada", "date": "2021-04-17T12:00:00.000Z", "description": "In 2020, I developed the PERSEUS-7, a minimum configuration version standalone computer with the 6502 CPU. On the PERSEUS-7, It can run software up to 1kB, but I need more memory space to implement simplified floating point interpreters and so on. Therefore, I started to develop PERSEUS-8 as an extended version of the PERSEUS-7. The features of the PERSEUS-8 are as follows. (1) The DMA address setting, which was 10 bits in the PERSEUS-7, is now 16 bits for the entire the 6502 CPU space. (2) Implemented 16kB of battery-backed RAM so that the software is always saved. 8kB of it can be switched with PROM. (3) The single step control circuit uses the same circuit as the proven PERSEUS-7. (4) The enclosure has almost the same outline as the PERSEUS-3, but both sides of the main board are accessible.", "image": "https://cdn.hackaday.io/images/resize/600x600/5473851618623466776.JPG", "logo": "https://hackaday.io/apple-touch-icon.png", "publisher": "Hackaday.io", "title": "PERSEUS-8 homemade 6502 computer", "url": "https://hackaday.io/project/179196-perseus-8-homemade-6502-computer", "lang": "en", "failed": true, "failedAt": 1728192844754, "failedError": "TimeoutError: Promise timed out after 10000 milliseconds", "cached": true, "cachedAt": 1728192848388 }
Learn Multi platform 6502 Assembly Programming... For Monsters!

www.chibiakumas.com
2019-02-14T03:26:44.000Z
dev 6502 retro imported:pinboard

Notes

In these tutorials we'll start from the absolute basics... and teach you to become a multiplatform 6502 monster!... Let's begin!

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6502_Assembly_Language_Programming.pdf

www.atarimania.com
2018-01-30T19:20:43.000Z
retro 6502 imported:pinboard

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A Great Old-Timey Game-Programming Hack - Tom Moertel’s Blog

blog.moertel.com
2013-12-24T18:25:33.000Z
to:fb gaming retro programming assembly 6502 6809 imported:pinboard

Notes

You had to bang your ideas around, twist them, turn them, searching for something, anything that would help you squeeze them into the machine. Sometimes you found it, and you got one step closer to realizing your ideas. Sometimes you didn’t.

Feed

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Building a computer around a 6502 processor - Hack a Day

hackaday.com
2011-12-01T01:15:59.000Z
diy 6502 tech hacking nifty imported:pinboard

Notes

When it came time to try out some old-school computing [Quinn Dunki] grabbed a 6502 processor and got to work. For those that are unfamiliar, this is the first chip that was both powerful, affordable, and available to the hobby computing market back in the 1970′s. They were used in Apple computers, Commodore 64, and a slew of other hardware.

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AtariAge - Definitive Combat Dissasembly

www.atariage.com
2009-04-17T01:44:44.000Z
awesome asm 6502 stella atari atari2600 combat gaming imported:pinboard

Notes

"; My intent in overhauling this classic disassembly is to finish it ; so that the purpose of every instruction, memory location, and ; table is made completely clear. "

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pagetable.com » Blog Archive » How MOS 6502 Illegal Opcodes really work

www.pagetable.com
2008-08-03T02:53:45.000Z
6502 oldschool c64 hardware programming hacks opcodes imported:pinboard

Notes

"The original NMOS version of the MOS 6502, used in computers like the Commodore 64, the Apple II and the Nintendo Entertainment System (NES), is well-known for its illegal opcodes: Out of 256 possible opcodes, 151 are defined by the architecture, but many of the remaining 105 undefined opcodes do useful things."

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My Published Works: BYTE, October 1980

www.wiz-worx.com
2007-08-31T14:58:11.000Z
6502 programming compsci oldschool imported:pinboard

Notes

"Do not be intimidated by the prospect of over 16,000 user-defined instructions. Instead, welcome the ability to microprogram any or all of your favorite machine architectures into the virtual machine now available."

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The New Dimension

www.redizajn.sk
2007-07-26T14:49:39.000Z
c64 demos 6502 assembly programming oldschool imported:pinboard

Notes

"The main purpose for this web site is to produce legal future reference for those people who would like to be involved with assembly programming side of the C64 scene."

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cc65 - a freeware C compiler for 6502 based systems

www.cc65.org
2007-07-23T18:33:10.000Z
c64 6502 programming c 8bit imported:pinboard

Notes

This makes me want to fire up my C64 again. That or take this and my laptop and travel back to 1984

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6502asm.com - 6502 compatible compiler and emulator in javascript

6502asm.com
2007-04-12T04:01:16.000Z
6502 programming assembly oldschool javascript webdev imported:pinboard

Notes

"6502 compatible compiler and emulator in javascript "

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