created: 07/12/01; clarifications: 10/07/02

# CHAPTER 15 — Memory Access Instructions

This chapter discusses how to copy data from memory into registers, and how to copy data to memory from registers.

#### Chapter Topics:

- Load and store.
- Data alignment.
- Byte order (little endian and big endian).
- The `lw` and `sw` instructions.
- The load delay slot.
- Base registers and address calculation.
- The `lui` instruction.
- Symbolic addresses.

### QUESTION 1:

(Review:) What is the name of the operation that copies data from main memory into a register?