Re: APPLE ][ Clone-Project?

[pausch@saaf.se (Paul Schlyter)]

In article <3C56E5C1.4ACEC11F@eric-bruecklmeier.de>,
E.-R. Bruecklmeier <spamport@eric-bruecklmeier.de> wrote:
 
> Andrew Trotman schrieb:
> 
>> This seems like the currently cheapest wasy to solve this problem at the
>> moment.  They are all original components and when I finally blow one up
>> I'll fix it from bits on the other motherboards.
> 
> It is more the academical interesst what drives me.
 
It was a similar interest which motivated the Eniac-on-a-chip project
some 5 years ago (these links are still alive):
 
http://www.upenn.edu/computing/printout/archive/v12/4/chip.html
http://www.ee.upenn.edu/~jan/eniacproj.html
 
 
> I think it is an interessting project to clone an apple ][+ let's say
> on an atmel MEGA-AVR and a Xilinx 95C216 - which is can still use the
> original ROMs and can serve the original cards and peripherals.
>  
>> There are some "problems" with a 100% modern compatible:
>>     Where are you going to get a "modern" 1978 style floppy disk drive?
>>     What OS are you going to run? Will DOS 3.3 run on a 50Gb hard drive?
>>     100% compatible with what?  ][ ][plus //e //c or IIgs?
> 
> ][+ would be enough.
> 
>>     There are no "modern" versions of some of the original chips!!
>>     The custom chips no longer exist so a clone may be physicaly large.
> 
> I don't plan to use modern versions of the old chips - i want to build
> something like a "hardware emulator" of an apple ][+ which behaves to
> the outer world like a real one.
 
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