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PostPosted: Wed Nov 28, 2012 1:30 pm 
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Why the ARM architecture is shaped the way it is

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Wilson started doing designs without any form of contract, just because that is what members of the computer and microprocessor societies liked to do. Each had their own favorite microprocessors and at this stage in the 8-bit era there were choices. Wilson had experience of designing around the 6502, including an early form of embedded system; an electronically controlled cow feeder for a firm in Harrogate.

The 6502 was designed by Chuck Peddle and Bill Mensch for MOS Technology Inc. in 1975 and when it was introduced was considerably lower cost than equivalents from Intel and Motorola. Mensch went on to form Western Design Center Inc. (Mesa, Arizona) which made the 65C02, the CMOS version of the processor.


http://www.eetimes.com/electronics-news ... geNumber=0


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PostPosted: Wed Nov 28, 2012 7:41 pm 
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See also one of our previous discussions
viewtopic.php?f=1&t=1892

Edit: also viewtopic.php?f=3&t=1451


Last edited by BigEd on Wed Nov 28, 2012 9:47 pm, edited 1 time in total.

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PostPosted: Wed Nov 28, 2012 7:49 pm 
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Does anybody know if there's a description of the early ARM1/ARM2 processor somewhere ?


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PostPosted: Wed Nov 28, 2012 8:31 pm 
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There's a PDF with a nice photo (search for lee smith arm brief history pdf)

And this usenet posting has some good info:
https://groups.google.com/forum/?fromgr ... PsDLEPf2eo
["Some facts about the Acorn RISC Machine"]

Edit: also this retelling of a Furber talk, which mentions the 808-line BASIC model:
http://www.wrocc.org.uk/meetings/report ... ntext=past
With a tantalising snippet here:
http://www.cix.co.uk/~rrussell/bbcbasic ... model.html


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