Endianness

Intel is a Little Endian Architecture.

The Big Endian

Roles of Endianness

• Endianness applies to memory not registers
• Endianness applies to bytes not bits.

Endianness Example

Computer Memory Hierarchy

Intel Register Conventions 1

• RAX - Store Functions return values
• RBX - Base Pointer to the data section
• RCX - counter for loops
• RDX - I/O Pointer