Datapath Schematic
Control lines determine the operation of the datapath components
15-11
Read
register1
Read
register2
Write
register
Write
data
Registers
Read
data 1
Read
data 2
Zero
ALU
result
Read
address
Write
address
Write
data
Data
Memory
ALU
Read
data
M
u
x
M
u
x
Sign
extend
Read
address
Instruction
Memory
Instruction
PC
4
Add
Shift
left2
Add
ALU
result
M
u
x
PCSrc
RegWrite
RegDest
MemRead
MemWrite
ALUSrc
M
u
x
ALU
Control
25-21
20-16
15-0
5-0
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