I write about the past, present, and future of technology across three sites. imapenguin.com explores retro computing and programming fundamentals, milkcrunch.com covers modern software development and engineering culture, and evadot.com examines commercial spaceflight and the new space movement.
Posts
RSS- Tweet sized review of the @retrorewindca carts and harnesses: built solidly and they do what they are supposed to. This is machine number 4 back in service using them. #commodore
- You haven’t REALLY lived until you try and demonstrate hash collisions using the bug repellent program from Ahoy! Magazine and a type in program called Salvage diver, then cross it with checksums and SHA-256.
- Making and breaking Ciphers on the Commodore 64 Part 10 – Finding hash collisions with a type in game from 1984 · imapenguin
- Had quite a few ask about SHA-256 execution times in 6510/6502 Assembly. I'm seeing about 21 jiffies ($15 hex) on average. So 2.857 hashes per second on an unaccelerated Commodore 64. Not too shabby. Imma be Bitcoin rich!! In 50 trillion years.... #commodore #c64 #Crypto
- Ha! Reseated the ROMs and it works. I am basically a wizard.
- Getting into the nitty gritty of the crypto series on the Commodore now. I want to demonstrate hash collisions. Only 1Mhz so I'm doing shorter hashes and looking for occurrences of collisions that result in english words.
- Making and Breaking Ciphers with Commodore 64 Part 9 – Finding Smallish Primes · imapenguin
- Current mood
- This TNC for Raspberry Pi just arrived. Plugged it in and not only did it fail to work, it got so hot I couldn’t touch it. Bleh.
- Brought it with me today in case there was an opportunity to work on it. Had to take cover during heavy rain, so I was prepared to make use of the time AND I fixed the bug. Woot!
- 10 minute morning progress before heading out for the day: Tiny bug... this gets all the primes to 2^24 except 3,5,7,11, and 13. And I am really stuck on WHY. Not gonna win any speed records, but it's good demo code anyway. #commodore #c64 #crypto
- I'm actually doing some fishing this weekend, but my other project is to work on the ISS to Commodore config. Step 1 is serial connection to Raspberry Pi which was simple enough #commodore #c64 #Space
- Youtube still has me in timeout. Isn't it lovely when they do that and you really have no idea why?
- This took my Python script 207 seconds. My Commodore 64 just crossed the 24 hour mark. I'm hoping it finishes in time to post the article next week! Brute forcing all the primes between 1 and 2^24. But... it's for science! Yeah, that's it!!
- 10 minute lunchtime progress: Part 9 is on prime numbers. Following the SLOW BASIC version of this with an Assembly version. Next is printing in decimal and some speed work. Happy at this point though
- Quick Post: Slow text on the Commodore · imapenguin
- Since I'm not allowed to comment on YouTube today, here's the YMT/Elysium Bitcoin miner using the Ultimate64 in full turbo mode. Kinda cheating and feels dirty: 26 seconds. My stock Commodore 64 takes 24 minutes.
- The Commodore 64 N.O.O.C.U.L.A.R futbal "project"... I can't say it's the craziest idea I've EVER had, but it sure is fun!
- Gather around the fire kids while Grandpa recounts tales of yesteryear. It was a time where brave men departed on grand adventures in their simulators...
- The Commodore 64 N.O.O.C.U.L.A.R. futbal project · imapenguin