Date: Wed, 5 Dec 2001 14:03:37 +0300 (MSK) From: "Eugene L. Vorokov" <vel@bugz.infotecs.ru> To: tlambert2@mindspring.com (Terry Lambert) Cc: freebsd-hackers@freebsd.org Subject: Re: offtopic: assembly Message-ID: <200112051103.fB5B3cv28182@bugz.infotecs.ru> In-Reply-To: <no.id> from "Terry Lambert" at Dec 05, 2001 12:10:08 AM
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> > Fabio Miranda wrote: > > I want to understand Why each byte (8 bit of data and > > 1 bit of parity) has one bit of parity? > > To permit the hardware to catch single bit errors. > > ECC is a better version of this, which permits the hardware to > correct single bit errors, and catch multiple bit errors. Well, AFAIK, ECC cat correct single bit errors and detect double bit errors. Everything else is problematic, it may or may not detect multiple bit errors, depending on conditions. Just my 2 cents. Regards, Eugene To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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