#65C02
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fuzzweed.co.uk
mad65.codepainters.com
MAD-65 — a hand-built arcade console with two 65C02 CPUs
A retro arcade console you can build yourself: two 65C02 CPUs, one bit per pixel, 33 chips, no FPGA. Free simulator and the game C.E.T.A.S.
mad65.codepainters.com
August 20, 2026 at 9:18 PM
jeffjetton.bsky.social
Celebrating #ChuckPeddleDay with a 65C02.
Photo of an electronics breadboard with several IC chips and wires. The chip in the upper left is a 65C02 CPU. An alphanumeric LCD screen in the lower right is displaying "Happy Chuck Peddle Day!"
November 25, 2025 at 5:41 PM
theoasisbbs.bsky.social
Commander X16 65C02 Assembly Tutorial – Lesson 2: 65C02 Addressing Modes
#CommanderX16 #65C02 #AssemblyProgramming #RetroComputing #X16Tutorial #8BitCoding

theoasisbbs.com/commander-x1...
Commander X16 65C02 Assembly Tutorial – Lesson 2: 65C02 Addressing Modes - The Oasis BBS
Learn 65C02 addressing modes with live coding and debugging on the Commander X16 in Matt Heffernan’s updated tutorial episode.
theoasisbbs.com
May 27, 2025 at 1:13 PM
quartz.xtal.net
I am COOKING
An unfinished breadboard computer running a 65C02 microprocessor. Bunch of multi-colored wires are hooked up to the data- and address-pins on the processor, labeled "DATA" and "ADDR" respectively
February 25, 2025 at 2:29 PM
kim-6502.bsky.social
Bill Mensch's 65C02 fixed the indirect jump bug, added new addressing modes, and used CMOS so it drew almost no power when halted. The WDC 65C02 is still in production today. Fifty years and counting. Try getting support for a five-year-old JavaScript framework.
April 2, 2026 at 1:00 PM
breakintoprogram.co.uk
Thankfully fixed in the 65C02.
March 20, 2026 at 2:19 PM
cailin.dev
I should do something with these 6502s at some point 🤔
9 surface mount WDC 65C02 CPUs on a sheet of anti static foam
December 5, 2025 at 7:59 PM
museumjoe.bsky.social
Describe your BlueSky account in a single image
Picture of a 65C02 processor with custom wire strapping installed in an Apple 2e computer.
October 7, 2025 at 2:06 PM
fuzzweed.co.uk
Idle curiosity, and zero practical use,but it's running a Mistubishi M50747 which is a 65C02 derivative, so I've dumped the ROM and disassembled the code.
Typewriter pcb Some assembly code
October 5, 2025 at 12:36 AM
kim-6502.bsky.social
Bill Mensch designed the 65C02 at Western Design Center in 1983. He fixed the indirect jump bug, added new addressing modes, and made all the undefined opcodes into well-behaved NOPs instead of chaos generators. He also cut the power consumption dramatically. The 65C02 is still in production today.
September 10, 2026 at 1:00 PM
0xc0de.bsky.social
Citadel 2 disassembly WIP. I think this 65c02 instruction only gets executed when the game is completed. It freezes the CPU when executed on a 6502! Maybe the author tested it on his BBC Master only? And nobody ever completed the game on a BBC Micro to discover this?
April 30, 2026 at 7:47 AM
devilishdesign.bsky.social
Today's CPU is the 65C816 from 1985. Essentially an enhancement of the 65C02, it allows switching between 8bit & 16bit registers and address space was increased to 24bit, allowing for 16Mb of RAM. It's most commonly found in the Apple IIGS, Acorn Communicator and a modified version in the SNES.
December 28, 2024 at 7:19 PM
museumjoe.bsky.social
She’s so pretty. 65C02, serial port for control and program loading, 6 channel stereo sound and other features that may change later.

The boot chime is the same chord as the Mac startup.

I love it.
JCM-1 single board computer wire wrap prototype.
May 5, 2026 at 12:54 AM
kim-6502.bsky.social
Bill Mensch designed the 6502's I/O subsystem and later founded WDC, which still manufactures 65C02 and 65C816 chips today. The 6502 is not a museum piece. It's a product you can still order.
May 14, 2026 at 1:01 PM
selectric.space
2025's hottest accessory: a 65C02
April 6, 2025 at 2:00 AM
markjkoch.bsky.social
It's alive! Keypad/Display #PCB module for my #kim-1 replica is working! Mostly based on the original 1970s #schematic, using modern parts. I wrote a PCB test fixture using Arduino and #rp2040 #raspberrypipico module from #adafruit. My first time using a rp2040 was mostly painless. #65C02
August 28, 2025 at 9:20 PM
theoasisbbs.bsky.social
LC256: A 4MHz 65c02 Computer with Yamaha V9958 Graphics
#LC256 #RetroComputing #65c02 #YamahaV9958 #8bit #Commodore64 #HomebrewComputer #vossi1

theoasisbbs.com/lc256-a-4mhz...
LC256: A 4MHz 65c02 Computer with Yamaha V9958 Graphics - The Oasis BBS
Christian Forstreuter introduces the LC256, a 4MHz 65c02 computer featuring 1MB RAM, Yamaha V9958 graphics, and multiple expansion options. Learn more about its features and technical details.
theoasisbbs.com
March 10, 2025 at 4:20 PM
theoasisbbs.bsky.social
Commander X16 65C02 Assembly Tutorial – Lesson 4: Arithmetic and Logic
#CommanderX16 #65C02 #AssemblyLanguage #8BitComputing #RetroProgramming

theoasisbbs.com/commander-x1...
65C02 Assembly Tutorial Arithmetic and Logic
Learn 8- and 16-bit math on the Commander X16 in this updated 65C02 Assembly Tutorial. Bitwise logic, shifting, and more included.
theoasisbbs.com
July 28, 2025 at 1:43 PM
theoasisbbs.bsky.social
BitMagic: A Commander X16 Development Suite for VSCode
#BitMagic #CommanderX16 #VSCode #RetroDevelopment #65c02 #RetroGaming #DevTools

theoasisbbs.com/bitmagic-a-c...
BitMagic: A Commander X16 Development Suite for VSCode - The Oasis BBS
Discover BitMagic, a feature-rich Commander X16 Development Suite for VSCode. Enjoy modern debugging, a powerful compiler, and seamless retro development for the 65c02.
theoasisbbs.com
January 28, 2025 at 2:30 PM
theoasisbbs.bsky.social
Commander X16 65C02 Assembly Tutorial – Episode 1
#CommanderX16 #AssemblyLanguage #WDC6502 #RetroComputing #X16Tutorial

theoasisbbs.com/commander-x1...
Commander X16 65C02 Assembly Tutorial – Episode 1 - The Oasis BBS
This 65C02 assembly tutorial walks through your first program on the Commander X16 using real hardware and the ca65 assembler.
theoasisbbs.com
May 20, 2025 at 1:16 PM
pantsrevolution.bsky.social
3ric is a brand new 6502 computer you can boot in your browser

Eric Badger's 3ric is a custom 65C02 machine with real hardware and a cycle-accurate web emulator, arriving just in time for KansasFest.

#Retro #appleii #retrohardware #emulation #homebrew
3ric is a brand new 6502 computer you can boot in your browser
Eric Badger's 3ric is a custom 65C02 machine with real hardware and a cycle-accurate web emulator, arriving just in time for KansasFest.
pantspantsrevolution.com
July 15, 2026 at 3:11 PM
0xc0de.bsky.social
Digging deeper and deeper into Citadel 2 (BBC Micro). From self-modifying code to leftover BBC BASIC inline assembly. And from custom line drawing code to 65C02 opcodes, while the BBC Micro has a 6502! I also made a Large Unified Binary™️ to avoid multiple confusing code/data relocations
April 28, 2026 at 8:42 PM
theoasisbbs.bsky.social
Shinobi on Commander X16: Dev Update #4 Breakdown
#CommanderX16 #Shinobi #HomebrewGaming #65C02 #VERAchip #ModernRetro #RetroGaming #X16Community

theoasisbbs.com/shinobi-on-c...
Shinobi on Commander X16: Dev Update #4 Breakdown - The Oasis BBS
Andy McCall's Shinobi port for Commander X16 hits new heights in Dev Update #4 — sprites, tiles, 65C02 assembly, and real arcade DNA.
theoasisbbs.com
June 10, 2026 at 1:10 PM
goofoffbert.bsky.social
I have that as well. the 65C02 .. using it with Ben Eater's "Build a 6502 computer" videos.
September 17, 2026 at 6:22 PM
grantmestrength.bsky.social
App update: Added 8088 and 65c02 opcodes and lowered minimum iOS requirement to 18.

Wondering if this app is actually useful? What would make it useful-er?

Or is it more of a comfort thing to have The Sacred Knowledge close to hand?

Try it and let me know!

testflight.apple.com/join/e3nSMedK
March 8, 2026 at 2:35 PM