The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘6502’ Category

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6502 CPU replacement board: more on how to repair 6502 systems.

Posted by jpluimers on 2017/07/17

I love the idea of a 6502 CPU replacement board: more on how to repair 6502 systems.

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Posted in 6502, History | Leave a Comment »

Warning: C64 geek pr0n! A Mind Is Born

Posted by jpluimers on 2017/04/20

Geek pr0n on the C64:

Making a demo in just 256 bytes would be a formidable challenge regardless of platform. A Mind Is Born is my attempt to do it on the Commodore 64. In the absence of an actual 256-byte compo, it was submitted to the Oldskool 4K Intro compo at [WayBack] Revision 2017, where it ended up on 1st place.

Source: [WayBack] A Mind Is Born

Via:

–jeroen

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Posted in 6502, C64, Commodore, Development, History, Software Development | Leave a Comment »

Please Help Us Track Down Apple II Collections « ASCII by Jason Scott

Posted by jpluimers on 2017/04/03

Conditions are very, very good right now for easy, top-quality, final ingestion of original commercial Apple II Software and if you know people sitting on a pile of it or even if you have a small handful of boxes, please get in touch with me to arrange the disks to be imaged. apple@textfiles.com.

For example, piles and piles of educational software has returned from potential oblivion, because it’s about the preservation, not the title. Wonderfully done works are being brought back to life and are playable on the Internet Archive.

In other words: if you have or know someone who has disks with original, uncracked software that cannot be copied easily, let the team at the WayBack machine know as they have the resources that can help preserve that software.

–jeroen

Source: [WayBack] Please Help Us Track Down Apple II Collections « ASCII by Jason Scott

Posted in //e, 6502, Apple, Apple ][, History, Power User | Leave a Comment »

Interesting historic read of notes on end 1970s Apple SSAFE project – how it started and ended

Posted by jpluimers on 2017/02/27

This appeared a few days back: [WayBack] http://bitsavers.trailing-edge.com/pdf/apple/ssafe/Apple_SSAFE_Project.pdf

It’s about “Software and Security from Apple Friends and Enemies” an early exchange of ideas and possibilities for DRM in the Apple ][ and Apple III era.

I got it via my bitsavers.org RSS subscription, but it has been over the net in quite a few other places as well:

I think the most important quote is from the one on reddit, submitted 20170223 by vadermeer  for which I added some WayBack/Archive.is links:

[WayBack] Found Internal Apple Memos about copy protection for Apple II, SARA, LISA(self.VintageApple)

Yesterday at the Seattle Goodwill Outlet, where everything is sold by the pound, I noticed the Apple logo on letterhead sticking out from a bin of books, so I started digging. What I found were the 1979-1980 files of Jack MacDonald, manager of system software for the Apple II and /// at the time

They tell the story of project “SSAFE” or “Software Security from Apples Friends and Enemies.” This was a proposal to bring disk copy protection in-house to sell as a service to outside developers. Inter-office memos, meeting notes and progress reports all give a good idea of what a project lifecycle was like. Different schemes and levels of protection are considered, as well as implementation primarily on the Apple II+ and the upcoming SARA (The Apple ///) and Lisa computers. [WayBack] Randy Wigginton is featured prominently throughout, along with mentions of Woz and many other familiar names.

The documents were all a jumble so I’ve put them in chronological order and scanned the collection, please enjoy. [Archive.is]

The reddit thread is very nice reading as it explains how close we are now to this Level 1:

Level 1. Totally secure. Absolutely no method of stealing the software. 100% effective. Note that the ideal, level 1, is achievable only through disallowing any access of any kind to the software and the computer. Not very practical in our circumstances.

and this one from boingboing:

It’s so neatly packaged and well-documented it could be a Harvard Business Review case-study.

Edit 20240819: the above Googl links pointed to [Wayback/Archive] Apple SSAFE Project.pdf – Google Drive.

--jeroen

Posted in 6502, Apple, Apple ][, History, Power User | Leave a Comment »

Ultimate Micro Releases the Universal PSU Kit and Upgrade – Call-A.P.P.L.E.

Posted by jpluimers on 2017/02/24

I might buy this as a preventive measure: Ultimate Micro Releases the Universal PSU Kit and Upgrade – Call-A.P.P.L.E. [WayBack]

Videos of how to install are below.

–jeroen

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Posted in //e, 6502, Apple, History, Power User | Leave a Comment »

Apple ][ history – Nibble magazine

Posted by jpluimers on 2017/02/16

I recently found some old magazine issues of my early programming escapades. It reminded me of the really old days where – as a school kid – I tried to buy Nibble magazine at a regular base. It was expensive (I think it was around 8 Dutch Guilders (or NLG) – close to EUR 4 – which was a lot for me, though less expensive than diskettes that were like NLG 10 each).

But it was fun as the magazine focussed at computer programs and programming transitioned my life. From Integer Basic via AppleSoft Basic (and various smaller attempts in FORTH, MuSimp, LISA Assembler and LOGO) to Turbo Pascal on CP/M.

Recently I learned that all issues (16k pages total!) have been scanned and OCR-ed and can be obtained on DVD for a modest price. Even better: all their software is available for free.

Just follow these links:

For some history:

–jeroen

Posted in //e, 6502, Apple, Apple ][, Development, History, Pascal, Power User, Software Development, Turbo Pascal | Leave a Comment »

Want for birthday or X-mas: “The Lamp” and “BBS: The documentary”

Posted by jpluimers on 2017/02/13

Via KansasFest 2009 Keynote with Jason Scott | KansasFest [WayBack] I bumped into these documentaries by Jason Scott Sadofsky:

The BBS Documentary DVDs are No Longer for Sale [WayBack] though “There will be digital copies sold in the future!” and there is “BBS The.Documentary Part 1 – Baud – YouTube”

There are upcoming documentaries as well, including one on the 6502.

–jeroen

Posted in 6502, History | Leave a Comment »

“Personal Computing on the VIC 20” manual is on-line, but prepared for a slow download.

Posted by jpluimers on 2016/08/16

From a while ago:

David Ratnasabapathy: The VIC-20 programmer’s manual was the best intro to programming I’ve ever read. I’d love to find a copy online, the new generation could use it.

+Isaac Kuo that book is wealth. I loved marginal explanations that expanded on the main text, it’s a tactic I use in my own class notes.

The manual was called Personal Computing on the VIC 20 and it is online! This is amazing! Ah, memories.

http://www.classiccmp.org/cini/pdf/Commodore/VIC-20%20Programmer’s%20Reference%20Guide.pdf

+Tomasz Machalski there’s a motherload here:

http://www.classiccmp.org/cini/pdf/Commodore/

Including VIC-20 User’s Manual.pdf

http://www.classiccmp.org/cini/pdf/Commodore/VIC-20%20User’s%20Manual.pdf

and VIC-20 Programmer’s Reference Guide.pdf

http://www.classiccmp.org/cini/pdf/Commodore/VIC-20%20Programmer’s%20Reference%20Guide.pdf

Jeroen Wiert Pluimers:+David Ratnasabapathy thanks a lot!

Downloaders: that site is slow. Not as slow as the New Horizons uplink, nor as slow as 1980s modems, but be prepared for some serious wait time.

https://en.wikipedia.org/wiki/Modem#The_Smartmodem_and_the_rise_of_BBSs

Note that the wayback machine has them cached:

–jeroen

via It’s our third birthday! What better present than the VIC-20 [1] (“A Real… [WayBack]

Posted in 6502, Commodore, Development, History, Software Development, VIC-20 | 1 Comment »

The Codeless Code: Ancient code

Posted by jpluimers on 2016/08/10

something like: 100 PRINT “&F2&B&H3&W2Hello, world!”would select font , bold, with triple height and double width, and render “Hello!” on the high-res screen

Source: The Codeless Code: Ancient code – hand coded (on paper) 6502 assembly!

via: 6502 assemblerbeen there, done that – Thomas Mueller (dummzeuch) – Google+

–jeroen

Posted in //e, 6502, 6502 Assembly, Apple, Apple ][, Assembly Language, Development, History, Power User | Leave a Comment »

Logo on the 6502, in honour of Seymour Papert who died this week – G+ mos6502

Posted by jpluimers on 2016/08/05

This week, Logo on the 6502, in honour of Seymour Papert who died this week. He did a lot more, but Logo is a lasting and perhaps most visible… – mos6502 – Google+

–jeroen

 

Posted in 6502, History | Leave a Comment »

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