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How an Accident of Hardware Design Encouraged Open Source (O'ReillyNet)

How an Accident of Hardware Design Encouraged Open Source (O'ReillyNet)

Posted Feb 28, 2007 19:27 UTC (Wed) by MBR (guest, #43632)
In reply to: How an Accident of Hardware Design Encouraged Open Source (O'ReillyNet) by jzbiciak
Parent article: How an Accident of Hardware Design Encouraged Open Source (O'ReillyNet)

See my comment below in response to "PDP-endian" byte order. The PDP-11 addressing for multi-word data really confused the issue. Note that the VAX was its own series and was not part of the PDP series. I think DEC may have fixed the PDP-11's weird low-endian byte order but big-endian word order when they designed the VAX architecture, but I'm not sure because by the time the VAX came along I was doing more coding in high level languages and not so much in assembly language.


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