03_endianess

1. Team Emertxe
Advanced Pointers,
Arrays and Functions

2. Assignment 3

3. Assignment 3

4. Assignment 3
WAP to convert Little Endian data to Big Endian.

5. Assignment 3
WAP to convert Little Endian data to Big Endian.
Input:

6. Assignment 3
WAP to convert Little Endian data to Big Endian.
Input: Read size ‘S’ (in bytes 2 or 4) and read ‘num’ as hexa
(based on ‘S’)

7. Assignment 3
WAP to convert Little Endian data to Big Endian.
Input: Read size ‘S’ (in bytes 2 or 4) and read ‘num’ as hexa
(based on ‘S’)
Output:

8. Assignment 3
WAP to convert Little Endian data to Big Endian.
Input: Read size ‘S’ (in bytes 2 or 4) and read ‘num’ as hexa
(based on ‘S’)
Output: Print ‘num’ in Big endian format.

9. Assignment 3
What is Endianness?

10. Assignment 3
What is Endianness?
 The order or sequence of bytes of a work of digital data in
computer memory.

11. Assignment 3
What is Endianness?
 The order or sequence of bytes of a work of digital data in
computer memory.
 There are two types:

12. Assignment 3
What is Endianness?
 The order or sequence of bytes of a work of digital data in
computer memory.
 There are two types:
1. Little endian

13. Assignment 3
What is Endianness?
 The order or sequence of bytes of a work of digital data in
computer memory.
 There are two types:
1. Little endian
2. Big endian

14. Assignment 3
What is Little Endian?

15. Assignment 3
What is Little Endian?
 The most significant byte stored at the highest address.

16. Assignment 3
What is Little Endian?
 The most significant byte stored at the highest address.
 Example:

17. Assignment 3
What is Little Endian?
 The most significant byte stored at the highest address.
 Example:
num = 0x12345678;

18. Assignment 3
What is Little Endian?
 The most significant byte stored at the highest address.
 Example:
num = 0x12345678; 78 56 34 12
100 101 102 103

19. Assignment 3
What is Big Endian?

20. Assignment 3
What is Big Endian?
 The most significant byte stored at the lowest address.

21. Assignment 3
What is Big Endian?
 The most significant byte stored at the lowest address.
 Example:

22. Assignment 3
What is Big Endian?
 The most significant byte stored at the lowest address.
 Example:
num = 0x12345678;

23. Assignment 3
What is Big Endian?
 The most significant byte stored at the lowest address.
 Example:
num = 0x12345678; 12 34 56 78
100 101 102 103

24. Assignment 3
Example :-

25. Assignment 3
Example :-
Input:

26. Assignment 3
Example :-
Input: S = 2 , num = 0xABCD

27. Assignment 3
Example :-
Input: S = 2 , num = 0xABCD CD AB
100 101

28. Assignment 3
Example :-
Input: S = 2 , num = 0xABCD
Output:
CD AB
100 101

29. Assignment 3
Example :-
Input: S = 2 , num = 0xABCD
Output: 0xCDAB
CD AB
100 101

30. Assignment 3
Example :-
Input: S = 2 , num = 0xABCD
Output: 0xCDAB
Input: S = 2 , num = 0x1234
CD AB
100 101

31. Assignment 3
Example :-
Input: S = 2 , num = 0xABCD
Output: 0xCDAB
Input: S = 2 , num = 0x1234
CD AB
100 101
34 12
200 201

32. Assignment 3
Example :-
Input: S = 2 , num = 0xABCD
Output: 0xCDAB
Input: S = 2 , num = 0x1234
Output: 0x3412
CD AB
100 101
34 12
200 201

33. Sample execution:-
Assignment 3

34. Sample execution:-
Assignment 3

35. Sample execution:-
Assignment 3

36. Assignment 3
Pre-requisites:-

37. Assignment 3
Pre-requisites:-
 Pointers

38. Assignment 3
Pre-requisites:-
 Pointers
Objective:-

39. Assignment 3
Pre-requisites:-
 Pointers
Objective:-
 To understand the concept of Big Endian and Little Endian
representation.

40. Team Emertxe
Thank you