On a little endian machine, which byte of x is stored at the lowest address in memory?
0xCD
Correct!
0xAB
Incorrect.
0xBC
Incorrect.
0xAD
Incorrect.
(b)Big Endian Machines.
On a big endian machine, which byte of x is stored at the lowest address in memory?
0xAB
Correct!
0xCD
Incorrect.
0xBC
Incorrect.
0xAD
Incorrect.
Checkpoint4.7.2.Integer Byte Order.
An int variable number is stored in four bytes in memory. Suppose its address is 0xFF000BD4. Given the contents of memory shown below:
Memory Address in Hex
Data in Hex
0x FF00 0BD4
0x88
0x FF00 0BD5
0x77
0x FF00 0BD6
0x66
0x FF00 0BD7
0x55
What’s the value of number if the system stores integers in little-endian format? (express the value in hexadecimal)
What’s the value of number if the system stores integers in big-endian format? (express the value in hexadecimal)
Hint.
See ch4.7. The little-endian format stores data starting from the least-significant byte ("little end") to the most-significant byte in consecutive addresses.
Checkpoint4.7.3.Byte Ordering.
Assume that you are using an x86-based (little-endian) computer and receive a 4-byte int value sent from another computer over the Internet without either sender or receiver converting the integer to/from network byte order. In which of the following scenarios would you misinterpret the value of that number if you were to store it directly into a 4-byte int variable?
