Reverse Hex

A hexadecimal number, often referred to as "hex number," is a number system that uses base-16, meaning it represents numbers using 16 distinct symbols. These symbols are typically the digits 0-9 and the letters A-F (or a-f), where A-F represent the decimal values 10-15, respectively. For example:

• Decimal 0 is represented as 0x0 in hexadecimal.
• Decimal 10 is represented as 0xA in hexadecimal.
• Decimal 15 is represented as 0xF in hexadecimal.
• Decimal 16 is represented as 0x10 in hexadecimal.

The process of reversing the bytes of a hexadecimal number involves reversing the order of the bytes (pairs of digits) within the hexadecimal representation. Here's how it works with an example:

Suppose we have a hexadecimal number 0x1A2B3C4D. In this case, the bytes are 1A, 2B, 3C, and 4D. To reverse the bytes, we swap their positions:

Original: 0x1A2B3C4D Reversed: 0x4D3C2B1A

This reversal effectively swaps the positions of the bytes while maintaining their internal order within each byte.

Let's demonstrate this process with another example:

Original Hexadecimal Number: 0xAABBCCDD Bytes: AA, BB, CC, DD Reversed Bytes: DD, CC, BB, AA Reversed Hexadecimal Number: 0xDDCCBBAA

Similarly, for 0xA912CBD4: Bytes: A9, 12, CB, D4 Reversed Bytes: D4, CB, 12, A9 Reversed Hexadecimal Number: 0xD4CB12A9

This process involves reversing the order of bytes while keeping the bytes themselves intact within each pair.