Base Addressing

• Load, Store use “base addressing” ... the effective address, the address used to reference memory, is the sum of the address field and the contents of register rs

00000000000000000001000000000100 4100

Reg 3: 00000000000000000000000000011000 24

+ +

Example: lw $7, 4100($3)

00000000000000000001000000011100 4124

The effective address of the memory word referenced

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