These instructions are used to move data between registers, between memory and registers, and between I/O ports and registers.

• MOV: Move data
• PUSH: Push data onto the stack
• POP: Pop data from the stack
• XCHG: Exchange data
• IN: Input from an I/O port
• OUT: Output to an I/O port
• LEA: Load effective address
• LDS: Load pointer using DS
• LES: Load pointer using ES
• LAHF: Load AH with flags
• SAHF: Store AH into flags
• PUSHF: Push flags onto the stack
• POPF: Pop flags from the stack