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.