New subject: iAPX432, was Re: stack smashing Was: Re: Scanning Formats (TIFF vs. JPEG)

20 Aug 2006

On Sat, 19 Aug 2006 17:22:43 -0700,  jim stephens  
<jwstephens at msm.umr.edu> wrote:

...
  William Donzelli wrote:

   There
were a lot of good ideas in the iAPX432, anybody knows, if  
 they
 actually were used on any OS ? 

 AS/400. Properly.

 can you elaborate, or point to a web page?  thanks 
I wasn't aware that Intel had anything to do with the AS/400  
architecture :-)

The iAPX432 was an interesting Intel failure of the '80s which  
provided the tools to layout subsequent Intel devices.

<http://www.brouhaha.com/~eric/retrocomputing/intel/iapx432/> is a  
good read on the beast.

An detailed overview of the architecture: <http:// 
www.cs.washington.edu/homes/levy/capabook/Chapter9.pdf>

(Part of an interesting book on Capability-Based Computer Systems - a  
whole other thread... <http://www.cs.washington.edu/homes/levy/ 
capabook/>)

I remember salivating over the chip system when it came out until I  
got sticker shock.

	CRC

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