Liber809 – The Motorola 6809 Gets a New Platform

Posted on August 3, 2012 by Blake Patterson

Regular readers might recall a post a few months back that I revealed my acquisition of a Tandy Color Computer 3 system in order to spend some time with a platform I knew only through fun, long-ago sessions fiddling around in Radio Shack down at the mall while my mom was shopping. Making this move, I’ve been spending time on the web gathering info about the platform, which lead me to one of the most interesting retrocomputing projects I’ve ever heard of.

On the AtariAge forums early this year, I found a thread detailing the intention of a fellow named Boisy Pitre to take the heart of the CoCo, the 8-bit Motorola 6809 processor — arguably the most capable 8-bit processor ever created — and place it into an Atari 8-bit system and get the powerful NitroOS-9 operating system running on that hardware.

Boisy, who had fun with the Atari VCS as a kid, regretted never getting into the Atari home computers, and became intrigued (quite a while ago, as it turns out) with the notion of a machine with the Atari’s powerful ANTIC and GTIA chipset (thanks much, Jay Miner), driven by the 6809 processor, a more powerful unit than the system’s standard 6502 CPU. Determined to try and perform this brain surgery himself, he headed over to eBay and grabbed an Atari XEGS — an interesting choice, Atari’s attempt at turning their 8-bit home computer into a console — along with a keyboard and some carts. After de-soldering the 6502 and ROM chip and replacing them with sockets, Boisy posted his intentions to the forums and asked for a few pieces of advice to get started.

I recall reading the post and thinking it was a rather interesting concept, but that it was much to ambitious to realistically pull off. I didn’t think the effort would get very far at all. Boy, was I wrong.

In just three months, Boisy, with the help of a number of individuals in both the Atari and CoCo scenes, managed to go, step-by-step, from a crude, initial wire-wrap prototype and a few lines of test assembly code to a final production board with firmware that lets you boot right into NitrOS-9! I find the success just incredible. The board houses both a 6809E and the Atari’s own 6502C, letting you switch between normal Atari operation and 6809 mode on any Atari XL, XE, or XEGS computer. With an SIO2PC adapter cable and the DriveWire 4 server software (which I’m using with my CoCo 3, incidentally), you can boot up the Atari port of NitrOS-9, load applications, and experiment with 6809 assembly on the Atari.

The device is known as the Liber809, and you can order it online right now, for just $65. A few months back, Boisy setup liber809.blogspot.com, a blog to chronicle his progress, and it’s a fascinating read — head on over and start at the end. The whole thing makes me want to pull my 800XL off the shelf and transform it into this new, chimeric platform!

Here’s a video of Boisy demonstrating the Liber809 booting NitrOS-9 on an Atari 130XE:

And here’s a little demo, coded in 6809 assembly, that demonstes some of the Atari’s color capabilities:

This is some truly awesome bull-geek type goodness and I came to learn that Boisy is quite a CoCo scene personality. He runs Cloud-9, an on-line store supporting the CoCo that is a major force in the current-day scene. I actually had a chance to meet up with Boisy out at WWDC 2012 in San Francisco, back in June. We chatted for a little while at the TouchArcade Mixer and I can tell you he’s just about the nicest fellow you could ever meet. And, the funny thing is, it’s only in the past week that I realized that he is “the Liber809 guy.” If only I’d known when we met up! I would’ve asked him all about it. Ah well, maybe at WWDC 2013.

I’ve really enjoyed following the Liber809 project and I hope that both of my regular readers find it as fascinating and inspiring as I. And, stay tuned for more — Boisy never intended to stop with the Atari; he’s got other computer brain transplants in mind, and it sounds like the C64 is next on the list. Strong work, Boisy.

Atari XEGS image used courtesy of Adam Jenkins.

Posted in Atari, Tandy / TRS-80 | 1 Comment

CFFA3000 for Apple II: Look Ma, No Disks!

Posted on July 26, 2012 by Blake Patterson

Anyone who’s read more than a couple of my posts here knows that I have a somewhat sizable collection of vintage computers in my basement office. They’re all setup and ready to use, but as time goes on it grows more difficult to make the most of these floppy-based systems, given the difficulty in sourcing new floppy disks and the slow decay of those already filling my disk boxes.

The system entirely dependent on floppy disks that I use most frequently is my Apple IIe. I’ve got several large boxes of games and other programs for it that have been with me since my Apple //c days back in 1984, but their magnetically encoded bits are slowly being eroded by the winds of time. Well, I’m happy to report that I’ve, at long last, acquired the perfect solution to this unfortunate situation: the CFFA 3000.

The CFFA3000 (short for “Compact Flash For Apple”) is an Apple II expansion card that is able to read from and write to flash storage through either (or both) an on-board CF card slot and USB interface. The card is able to present the attached flash storage to any slotted Apple II as either a hard drive or a stack of floppy disks by way of disk image files and Disk ][ emulation firmware. Or both. It’s pretty awesome.

The CFFA3000 was created by Rich Dreher of R&D Automation and the first production run was released in 2009. I’ve had my eye on the device for quite a while, but it’s been pretty hard to get hold of. Luckily, there are some big runs of it this year, so I got on the list and managed to grab one. And, it works like a dream. (Especially with the optional remote unit, which I also ordered.) If you have a slotted II that you care about, I recommend you try to get one, as well. It’s even available in a version for the Apple I and its recreations!

Those intrigued by this technology should see my recent post regarding a similar solution I’ve attached to my Amiga 2000, My SDCard HxC 2001 Floppy Emulator Adventure. And I’ve got my eye on a similar device for my Tandy CoCo 3’s floppy media.

Posted in Apple II | 3 Comments

My First Printer. What Was Yours?

Posted on March 29, 2012 by Blake Patterson

I was recently listening to a retro computing podcast (though I can’t recall which one it was) where daisywheel printers were being discussed. This, naturally, brought to mind the first printer I ever owned, a Smith Corona TP-I that I used with my very first computer, a TI-99/4A that had a serial / parallel interface card in its Peripheral Expansion Box. (It was connected via the parallel interface.)

Smith-Corona TP-1

I wanted a printer for school to use with the TI, and one day on the way home from work, my dad stopped in a nondescript office equipment shop and asked about a printer. As I recall, the TP-I had been discontinued in favor of the TP-II, and so dad was able to grab one for a discount. It was mid-1983 when I printed my first page of text with it.

The TP-I would not print graphics, being a daisywheel printer, but it produced the highest quality text of any printer I ever owned, save for the HP LaserJet sitting behind me. It didn’t have a cut-sheet feeder or a tractor feed mechanism, and so paper had to be fed into it one sheet at a time. For program listings, I did use tractor feed paper, but it would end up skewed a bit here and there, what with no proper tractor feed mechanism in place.

Since then I’ve gone through quite a few printers — just about 20 in all.

So, what was your first printer? When did you get it and what system did you use it with?

Posted in Other Platform | 33 Comments

Glowing Pixels Replace Swirls of Paint at the Smithsonian

Posted on March 20, 2012 by Blake Patterson

This past weekend, my daughter and I attended an exhibit at the Smithsonian American Art Museum in Washington, D.C. that no gamer or pixel artist in the region will want to miss. The Art of Video Games exlores the 40 year evolution of video games as an artistic medium. Curated by Chris Melissinos, former chief evangelist and “chief gaming officer” for Sun Microsystems and founder of PastPixels, the exhibit features wall-size projected medlies of video games in action, big-screen, hands-on gameplay stations, quips and quotes from gaming greats of years past, and displays featuring many major game consoles ranging back to the Atari 2600, and corresponding selections of game titles that play on them.

The exhibit is located on the third floor of the museum and is spread across three large rooms, each with a different focus. The largest area of the exhibit is a dark space with a selection of games projected on the walls in front of controller stations where visitors can take turns playing. The playable displays include PAC-MAN, Super Mario Bros., MYST, The Secret of Monkey Island, and Flower.

The exhibit runs from March 16th to September 30th at the American Art Museum and, from there, it will go on a 10 city tour across the country. As a special feature for the opening weekend, the three-day GameFest gaming festival was being held during our visit. GameFest featured talks by industry veterans including Nolan Bushnell, various discussion panels, additional hands-on game stations, and even real-life, in-the-flesh “video” games in which visitors could participate. Some of the GameFest-ivities can be seen towards the end (in the outdoor courtyard) of the video I captured during my visit to the exhibit.

I found The Art of Video Games to be surprisingly well done and a very immersive (and nostalgic) experience that is well worth having. (And it’s free!) My only real complaint is the glaring absence of the Amiga among the historical platform displays. Of course, not every system from which sprang an original game can be included, but in an exhibit focused on video game artistry, there needs to be an Amiga. (The Amiga’s “featured four”, in my reckoning, might be Defender of the Crown, Beneath a Steel Sky, Another World, and Lionheart.)

A companion book has been published to accompany the exhibit. The Art of Video Games: From Pac-Man to Mass Effect is written by curator Chris Melissinos and features a foreword by director of the Smithsonian American Art Museum Elizabeth Broun and an introduction by Mike Mika, head of development for Other Ocean Interactive and an advocate for the preservation of video game history. The book features over 100 composite images of video games and retails for $40 (though it can be had for much less at a certain, massive online bookstore).

Whether during the initial D.C. run, or on the 10-city tour, check this one out, if you’re able. Photos of the exhibit can be seen in the event’s Flickr group and in my own photo set.

Posted in Gaming | Tagged , , , , , | 5 Comments

Wait — Not Another Apple Podcast?!

Posted on February 21, 2012 by Blake Patterson

Oh, dear lordy, no!!

Yes, in fact, it’s true. But it’s not not another Apple podcast — it’s the Not Another Apple Podcast?!

The podcast in question is a twice-a-month show hosted by myself and computer historian David Greelish of The Classic Computing Blog and the Retro Computing Roundtable podcast.

Every two weeks, David and I will take a look at the Apple of today, and it’s products, balanced with discussion and comparison / contrast to the Apple of the past. Each episode may end up leaning further into one time-frame than the other, but we’re hoping for a nice, balanced mix overall as the show progresses.

We’ve just posted our first episode, and I hope readers will consider giving it a listen. Any feedback would be most appreciated over at the Not Another Apple Podcast?! website.

Direct podcast link: NAAP-Show-01.mp3
iTunes link: Not Another Apple Podcast?!

Posted in Apple II, Macintosh, News | 6 Comments

The KryoFlux Floppy Controller: A Magnetic Media Miracle

Posted on January 20, 2012 by Blake Patterson

Those of us who are driven to gather computers of decades past about us in order to forever enjoy that magical, early stage of home computing (that’s unknown to so many today) do, indeed, reap rich rewards from the effort. But, keeping that dream alive is not without its challenges. As a long-time collector, I will say that the two biggest challenges those like myself face in the name of retro computing are the finite lifespan of magnetic media and the problem of leaking capacitors.

As for the capacitors — well, there’s nothing to do but replace ’em when it’s needed and hope that no real damage has been done. But, when it comes to dealing with fading floppies, there are a number of approaches out there, requiring a variety of different, and often rather complex, hardware setups. I’m happy to report that I’ve recently discovered one of the most elegant data preservation solutions I’ve ever seen, thanks to Lazy Game Reviews.

LGR recently posted a video demonstration of the KryoFlux USB floppy disk controller. The KryoFlux device is a highly flexible floppy drive controller board that attaches to old school floppy drives — 5.25-inch, 3.5-inch and 3-inch drives that use the standard Shugart 34-pin connector — via ribbon cable, and to a modern computer running Mac OS X, Windows, or Linux via USB 2.0. Software on the modern machine allows you to use the device to read in floppy disk data as a raw stream via measurements of the media’s magnetic flux transition timing, removing the need to worry about source formats, sector density, and the like. The data can then be stored as a disk image file. It is also possible to write disk images out to a wide variety of disk formats, including (but not limited to): Acorn Electron, Apple, Amstrad CPC, Archimedes, Atari 8-bit, Atari ST, BBC, Commodore 64, Commodore Amiga, MSX, IBM PC, PC-8801, Sam Coupe, Spectrum, E-MU Emulator & Emulator II, and DEC RX01 & RX02.

Features, as listed by the manufacturer:

  • Read at lowest level possible – precisely sampling the magnetic flux transition timing. Custom formats? Recording scheme violations? Encodings? KryoFlux will read them all.
  • Save as raw stream, or export to common sector formats supporting: Acorn Electron, Apple, Amstrad CPC, Archimedes, Atari 8-bit, Atari ST, BBC, Commodore 64, Commodore Amiga, MSX, IBM PC, PC-8801, Sam Coupe, Spectrum, E-MU Emulator II and many, many others.
  • Write back to disk. KryoFlux supports “one-click” writing of IPF files, and will soon be supporting more image formats as well.
  • Write blocker. Disable accidential writes by removing one jumper, impossible to work around in software.
  • Parallel export support. E.g. An Amiga/ST dual format disk can be written as raw stream, an ADF and an ST file, all at the same time during a single disk capture.
  • Intelligent software allows production of sector images for virtually all normal disks for systems containing a generic FM or MFM floppy controller. Many other weird synthesiser sample disk formats should work right out of the box.
  • Read variable rate “zoned CAV” disks in a normal fixed rate drive.
  • RoHS and WEEE compliant.
  • High quality immersion gold coated boards produced in cooperation with, and assembled by, Olimex Ltd.

In short, the KryoFlux device is something of a miracle for vintage computer collectors who actually like to use their old school hardware. The unit is available to order in two different versions: the Personal Edition Basic (just the controller board) for €89.95 and the Personal Edition Advanced (controller board plus requisite cables) for €94.95.

I will definitely be adding a KryoFlux controller to my arsenal in short order.

Posted in Multi-Platform | Tagged , , , , , | 15 Comments

Future Games: Ten Years from Now, Thirty Years Ago

Posted on January 16, 2012 by Blake Patterson

I think a lot about video games. I’ve been playing them for about 35 years now, and I’m fortunate enough that video games — playing them and writing about them with the rest of the great crew at TouchArcade — are my livelihood. This morning a twitter pal of mine tweeted out a great page scan from The Usborne Guide to Computer and Video Games, a children’s book published in 1982.

The page is entitled “Future Games” and starts out as follows, and then proceeds to say sooth on several different types of games. (Click the image for a slightly larger version.)

Within ten years the computer games of today will probably seem very basic and primitive. The games of the future will be faster and more exciting, with superbly realistic screen displays.

These games will contain computers a hundred times more powerful and faster than those of today and capable of storing millions of pieces of information. Computers like these will be built by packing more and more complicated circuits into a chip of silicon.

Faster and more realistic screen displays? Definitely. More exciting? Well, the retro gamer in me gives pause, but in many cases, yes. At the time this article was written I was gaming on an Atari 2600, and a TI-99/4A wasn’t far away. Ten years later, in 1992, I was gaming on a Macintosh LC (as best I could…), and an Amiga 1200 wasn’t far away (thankfully).

Thanks to Kate Lorimer (@WhatKateDoes), a chiptune-making, retro loving Scottish lass, for the tweet.

Posted in Gaming | 4 Comments

A Look at the Sauciest Magazine I Ever Owned

Posted on January 2, 2012 by Blake Patterson

One of the most exciting computers that I ever owned, and certainly one of the most significant in the history of personal computing, is the Amiga 1000, the first Amiga model release by Commodore in the fall of 1985.

At the time of its release, the system featured a powerful 7.14MHz Motorola 68000 processor, on-board custom co-processors to aid in graphics and audio tasks, a UNIX-like, pre-emptive multitasking operating system, and a graphical user interface to tie it all together. The Amiga 1000 unit retailed for $1,295 at launch and was significantly more powerful in every respect than the flagship IBM computer, the PC/AT, which featured a 6MHz Intel 80286 processor and retailed for approximately $6,000.

I learned about the coming Amiga in the summer of 1985, though, sadly, I don’t recall where. It certainly wasn’t “online,” which then would’ve meant on a dial-up BBS of some sort, as I had no modem on the Apple //c I was using at the time. I was intrigued by what I heard and excited about the prospect of owning one. (I was definitely outgrowing that //c.) It wasn’t until I walked into a Waldenbooks and picked up the August 1985 issue of Personal Computing magazine, however, that my lust truly began. And, began, it surely did.

The issue in question featured a striking cover showing the Amiga 1000 unit with several screens of software in action, filing out of the display. Inside, there was a main article and a few associated articles that went into great detail with regard to the system’s capabilities and specifications. I recall finding it actually painful that I was unable to get the text into my brain faster, such was the allure of the machine that was being so clearly described. Geek porn, this definitely was.

Remember, younger readers out there, this wasn’t just a faster version of the same old thing, like we generally see with computers today. This was a time when most every new computer brought with it an entirely new operating environment. To embrace a new platform in those days was to venture into unexplored shoals. (It was a thrill I experienced many times, but one that I lament new users today will never know.)

From that day until the day in late October 1985 when I brought my Amiga 1000 home from Chaney Computer in Newport News, VA — the first Amiga 1000 sold in the state of Virginia — I was transfixed by that copy of Personal Computing. I carried it everywhere, even to school, and read it constantly. I read it over and over and lusted and imagined and, in time, I pretty much wore it out. And sadly, like most of the computer magazines I had back in the early days (many of which I’ve reacquired in more recent years), I’m not sure where it went off to.

The degree to which that magazine impacted my life at the time was so dramatic that, a few years back, I sought to locate a copy, to have a look at what it was that sustained me so, until I had my hands on the hardware. I’ve had an eBay automated search in place for three years, at least, but I’ve never found a copy.

Well, I recently posted a request for the magazine over at Amiga.org and, as good fortune would have it, a reader there had scanned the magazine some years before and was able to provide me with a series of images that captured every page of Amiga coverage in that issue. Hats off, JimS — and many thanks.

In order to share this wonderful bit of computer journalism with others out there, I’ve assembled the various page scans into an ordered PDF that includes every bit of Amiga mention in that 27 year old issue of Personal Computing.

By all means, have a look: Personal_Computing_1985-Amiga.pdf

Please, do let me know if you happen to recall reading this particular issue, way back when. And, for those that are strangers to that wonderful period in computing history, I hope these scans convey a bit of the excitement that we old geeks enjoyed so long ago.

Posted in Amiga | 19 Comments

The Apple Game Server Online: Look Ma, No Floppies!

Posted on December 24, 2011 by Blake Patterson

About five years ago I made a post about the Apple II Game Server. It’s a Java application that lets Macs and PCs feed program data into any Apple II via serial null-modem cable — no disk drives required. It’s a terrific effort by creator Brendan Roberts.

A few weeks back, Egan Ford, who was inspired by Roberts’ work, assembled a spiritual successor to the Apple II Game Server and placed it online. The Apple Game Server Online is a wonderfully retro-styled website that features a list of Apple II games — now about 200 in number — and associated audio files that contain the audio data from data cassette versions of the games. These audio files can be played back from the browsers of many networked devices out there (like an iPad or a laptop) to load any of the listed games into an Apple II, II+ or IIe when tethered to the vintage Apple’s audio cassette input jack via audio cable.

The drill goes like this: you link your Apple II to the web-enabled host device, type “LOAD” at the Applesoft BASIC prompt, and hit “PLAY” in the web browser. In (usually) less than 20 seconds later, you’re playing a game. It couldn’t be much easier, and the data transfer is not far from floppy speed — and it’s getting faster; Ford has been updating the project earnestly.

From comp.sys.apple2 (usenet):

v0.2 on 12/18:

I updated http://asciiexpress.net/gameserver today.  With Michael Mahon’s help I was able to speed up the 12kHz/6kHz 8000 bps HIFI to  12kHz/8kHz 9600 bps.  I also fixed a big that effected some games that  loaded below $800.  Lastly I removed the CRC code in favor of a faster  checksum + file length check.

v0.3 on 12/20:

I’ve added a 3rd download option (TRACK).  TRACK files are CD  compatible WAV files (44.1kHz/16bit) with a modified loader for 11025Hz/7350Hz zeros and ones (8820 bps).  I also posted a video of loading a game via a cheap CD player ( http://asciiexpress.net/gameserver/cdload.mp4 ).

Eric Ford’s efforts here join those of Brendan Roberts in contributing greatly to the “Apple II Forever” mindset. As the remaining supply of 5.25-inch floppy disk media and functional, mechanical drives age and dwindle, finding alternatives for program storage must be a priority for the vintage computer enthusiast.

As you can see in the above video, I’ve had fun putting the system (v0.1 is shown) through its paces. If you’ve got an Apple II with a cassette input (any II other than the //c or IIgs) stored away somewhere, don’t miss this easy way to have a little retro fun.

Posted in Apple II | Tagged , , , , , , , , | 2 Comments

Have a Helping of 8-bit Holiday Cheer! [Updated for 2014]

Posted on December 10, 2011 by Blake Patterson

I’ve been a computer guy for a long time now, but I’ve been enjoying Christmas even longer.

I got my first computer, a TI-99/4A, on Christmas morning, 1982. I was 10 years old, and from that Christmas on, it was games and hardware I wanted Santa to leave me under the tree. On through my teenage years, part of my ritual for getting into the Christmas spirit and enjoying the holidays was downloading and watching Christmas demos on whatever system I had at the time (and every platform out there had a few of them).

Enjoying these demos is a personal tradition that I had, sadly, long left behind until last Christmas when I was inspired to seek out one of the demos I remember best, Audio Light’s 1985 musical slideshow for the Atari ST. With the help of an emulator, I captured it to share online with readers.

Here, a year later, I recently brought it up and watched it run through it’s pixellated images and 3-voice musical holiday greeting. As I watched, it occurred to me that it might be nice to gather a few of the other demos I remember from those good ole’ days and present them here, in order to perhaps share some of the holiday cheer that they used to inspire within me.

The following list of demos ranges across a number of platforms of olde. I’ll start with the Atari ST demo I presented last year. Happy holidays, and I hope you enjoy the shows!


Atari ST: Audio Light Christmas demo (1985)


C64: Seasons Greetings from Commodore (1982)


DOS PC: Sierra On-Line’s A Computer Christmas (1986)

Continue reading →

Posted in Multi-Platform | Tagged , , , , , , | 6 Comments