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SubjectRe: Byte article - 64 bit Unix
> I think we need to distinguish a few things about 64 bit OS's...
> Does the user address space have 64 bit addressability?


> Do file offsets have 64 bit addressability?


> Does the CPU do 64 bit arithmetic?


> Do memory move and copy routines use 64 bit at a time?

Yes, assuming I understand this question.

> The first two directly enable a leap to larger applications, but
> the latter two just provide some increment in performance.

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