Big Endian
Location Contents (Byte)
20:

 

What answers have you got?

There are many sources of information on the internet that can help you answer this question. Google is a terrific tool for the purpose.

hgmjr

 

Big Endian
Location Contents (Byte)

 

Big Endian
Location Contents (Byte)
20: 00
21: 00
22: 20
23: 49

Little Endian
Location Contents (Byte)
20: 20
21: 49
22: 00
23: 00

Ive looked on google and havent had much luck

Did you run across this presentation on "endianness" in Wikipedia?

hgmjr

 

yes and still made no sense... i even saw an example 1234567 stored in 0 ans still made no sense

 

mnunez021,

Big endian used in Motorola micros
Location Contents (Byte)
20: 00
21: 00
22: 08 hex
23: 01 hex

Little endian used by Intel micros.
Location Contents (Byte)
20: 01 hex
21: 08 hex
22: 00
23: 00

Endian describes the way a word is stored in memory. As a programmer, you usually don't have to worry too much about it unless you address a partial word with a byte instruction. Intel reverses the bytes, but not the bits within the bytes.

Ratch

 

http://upload.wikimedia.org/wikipedia/commons/d/d5/Endianessmap.svg

This figure from Wikipedia appears to spell out the technique fairly clearly.

Are you still confused?

hgmjr

 

Big Endian
Location Contents (Byte)
20: 00
21: 00
22: 20
23: 49

Little Endian
Location Contents (Byte)
20: 20
21: 49
22: 00
23: 00

Ive looked on google and havent had much luck

Do you see what you overlooked in your first attempt?

hgmjr

 

Big Endian

 

Big Endian
L

 

Sorry. The answer is incorrect. Keep in mind that the value as stated in the problem is expressed as a decimal value. You will need to do a bit of converting first before you tackle dealing with the endianness.

hgmjr

 

would i have to covert it to binary?

 

Yes. You may recall from your studies that memory contains values expressed in binary. Hexadecimal notation is commonly used when expressing 8-bit values so I would suggest you consider taking that conversion as your first step. Did your instructor mention that you would be dealing with hexadecimal values when this problem was assigned?

hgmjr

 

no and the section covers very little

 

Are you familiar with hexadecimal notation at all?

hgmjr

 

yes i am. i even have a cal just in cause

 

Then go ahead and convert it and then use that number in place of the number you used in reply #3. I think that will get you where you need to be.

hgmjr