Memory Organization

• Memory is a linear array of bytes (8-bits)

• References can be to individual bytes, words (32), half words (16) or double words (64)

• References should be aligned by data type

0:

1:

2:

3:

12:

4:

5:

6:

7:

8:

9:

10:

11:

13:

Alignment

Type Address LSB

byte any

halfword 0

word 00

double word 000

Byte Order

Big-endian: 0 is MSB

0 1 2 3

Little-endian: 0 is LSB

3 2 1 0

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