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 you use an octal number to represent the upper and lower nibble, or a 4-bit register value? -DebbieDale 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. .__________View the list's information and change your settings at //www.freelists.org/list/programmingblind-- No virus found in this incoming message.Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.20.8/1289 - Release Date: 2/20/2008 10:26 AM
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