1.1.1 Structure and Function of
the Processor
, § The ALU (Arithmetic and Logic Unit) completes all
the arithmetical and logical operations.
§ Arithmetical operations include all mathematical
The Arithmetic operations such as addition and subtraction on fixe
and Logic Unit floating point numbers.
§ Logical operations include boolean logic operation
such as AND, OR, NOT, and XOR.
, § The Control Unit is the component of the processor
which directs the operations of the CPU. It has the
following jobs:
The Control
§ Controlling and coordinating the activities of the CP
§ Managing the flow of data between the CPU and oth
Unit devices
§ Accepting the next instruction
§ Decoding instructions
§ Storing the resulting data back in memory
the Processor
, § The ALU (Arithmetic and Logic Unit) completes all
the arithmetical and logical operations.
§ Arithmetical operations include all mathematical
The Arithmetic operations such as addition and subtraction on fixe
and Logic Unit floating point numbers.
§ Logical operations include boolean logic operation
such as AND, OR, NOT, and XOR.
, § The Control Unit is the component of the processor
which directs the operations of the CPU. It has the
following jobs:
The Control
§ Controlling and coordinating the activities of the CP
§ Managing the flow of data between the CPU and oth
Unit devices
§ Accepting the next instruction
§ Decoding instructions
§ Storing the resulting data back in memory
