I hate to ask, but what is the nibble of a byte? Have a great day, Alex
----- Original Message ----- From: "Dale Leavens" <dleavens@xxxxxxx To: <programmingblind@xxxxxxxxxxxxx Date sent: Wed, 20 Feb 2008 16:00:42 -0500 Subject: Re: what is Hex?
You use two octal numbers, one for the upper and one for the
lower nibble of
a byte. Frankly I have never really used octal notation for
anything
serious. There may well be other uses. ----- Original Message ----- From: <yarringt@xxxxxxxxxxxxx To: <programmingblind@xxxxxxxxxxxxx Sent: Wednesday, February 20, 2008 1:37 PM Subject: Re: what is Hex?
I'm confused. I get using a hex number to represent the upper
and lower
nibble of a byte, but how could youuse an octal number to represent the upper and lower nibble, or
a 4-bit
register value? -Debbie
Dale Leavens wrote:Close,
Hex (hexadecimal) is base 16 and it is used because of the
architecture
of computers where a byte is made up of 8 bits. Rather than
represent the
position of 1s and 0s as an 8 bit binary number you can
represent the
contents of the byte with a Hexadecimal number. Octal (base 8)
was and is
sometimes also used to represent the upper or lower nibble of a
byte or
the value of a 4 bit register.
Hope this informs. .
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