Came from “2.1.3 Addressing and Byte Ordering”

4004d3: 01 05 43 0b 20 00 add %eax,0x200b43(%rip)

• 4004d3 is the memory address where this instruction is located (in hexadecimal).
• 01 05 43 0b 20 00, is the mechine code (raw bytes) of the instruction.
• 0x200b43(%rip) means relative address. add %eax,0x200b43(%rip) adds the value in the EAX to the 32-bit value stored at the memory location that’s 0x200b43 bytes after RIP (program counter).