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Please note also - THIS BLOG ENDS HERE WITH THE LAST ENTRY FROM NOVEMBER 9th 2021.

I have prepared a new blog with wordpress at https://vintagecomputing.info !!!

Thank you.

Amazing what is possible !
An Apple II and some peripheral stuff, fully equipped, and almost 100% compatible, but not running on old hardware - it can be done with a prototype board (Altera/Terrasic DE1 board).

Alex Freed did that ... his first steps began earlier with his FPGApple, Pseudodisk and other fine ideas, now he began to create an improved version.
See http://mirrow.com/FPGApple/revisited.html for more details.

Wonderful ! If he finishes his implementation of the Z80 part also (to use it with CP/M), for sure I am really interested.

Inspiration comes also from this site:
http://www1.cs.columbia.edu/~sedwards/apple2fpga/ so be curious and take a look also there.

The development board costs about $ 150, this is not too much if all planned functionality can be used.

URL has changed meanwhile, see link at the bottom.
Also, there is another site already offering a full blown Apple IIe in FPGA: http://www.applelogic.org/TheAppleIIE.html

... and it can be compiled on DOS error free. Now I tried it on CP/M 3.0 and guess what happens ?

It was too big, over 50KB size was too much for the Compiler. So I was reminded on these days and the size limitations suddenly again :-(

I am sure it can be stripped from all comments, and also from unnecessary blanks inside the source file, and then it will work even with CP/M again.

Now somebody can ask for the reason I tried this. There are many Z80 Assembler available, and many are very useful and runs smooth.
But there are no source code version of these Assembler available, and even if so, they are written in assembler also, a few in C. But so far I didn't found any source code for Turbo Pascal 3.0, and so it was very exiting for me to get one.

I will try to publish a ready compiled version as soon as I get time to strip that source code down, under DOS (with TP 3.0) it runs already smooth.

Update: You can download the whole package from http://www.z80.eu/downloads/asmz80.zip

I found surprisingly two other vintage computer blogs,
one from Howard Harte at http://hartetechnologies.com/Happenings/nfblog/
(with less entries for the present but many for 2007),
and a bigger one at http://www.bytecellar.com/,
with a bigger number of Apple II related entries.

Howard Harte describes the root (history) of CP/M and that was really interesting:
http://hartetechnologies.com/Happenings/nfblog/?p=18
You can also found some very interesting software pieces at
http://www.unix4fun.org/z80pack/
just look for "Bootable disk images with older Digital Research CP/M versions"
on that mentioned page from Udo Munk.

Very interesting pictures can be found at TechRepublic - they split an Osborne 1 part by part, hopefully they assembled it back to a working unit...

http://techrepublic.com.com/2346-13636_11-193055.html

As far as I know, that's an older one, not the newer model with less rounded case corners.
The detailed pictures from the Double Density are also amazing, because later computer models didn't need such extra logic due to more intelligent microcontroller like the upd765.

Indeed I didn't think about it yet. But it is not too difficult.
Getting an image from Asimov's site at ftp://ftp.apple.asimov.net/pub/apple_II/images/
Reading all infos at http://adtpro.sourceforge.net/
Transferring the image back to a real Apple ][.
Have fun.

Have to do it with "The Hitchhiker's Guide to the Galaxy".
Grab it at ftp://ftp.apple.asimov.net/pub/apple_II/images/games/adventure/The%20Hitchhikers%20Guide%20to%20the%20Galaxy.dsk
If the game is too difficult (you have to find the right words also), take a look into ftp://ftp.apple.asimov.net/pub/apple_II/images/games/adventure/HitchhikersGuideToTheGalaxy.txt
(Caution: Spoiler!)

To take a look into these disk images, just use Ciderpress
http://ciderpress.sourceforge.net/