2. Introduction to general registers of IA-32 series processors

Introduction to General Registers of IA-32 Series Processors

1. register

• special memory unit inside the processor
• There are many registers in the processor for different purposes
• The registers have their own names for easy representation and access

2. general purpose register

• The IA-32 series CPU has 8 32-bit general-purpose registers (General-Purpose Registers)
• General-purpose registers can not only store data, but also participate in arithmetic and logic operations, and can also give the address of the storage unit
• The names are:
  EAX, EBX, ECX, EDX, ESI, EDI, EBP, ESP
  

MOV    EAX, 12345678H       ;EAX=12345678H
MOV    ESI, 11223344H       ;ESI=