1|Page
EEE 463 Final Exam Newest Actual Exam With
Complete Questions And Correct Detailed
Answers||Verified Exam!!! (Verified Answers) |Already
Graded A+||Newest Exam!!!
What is an instruction set? - Answers-The instruction set
architecture (ISA) of an architecture is the set of
instructions that the CPU can handle.
What are some important features that can be used to
characterize an ISA? - Answers-ISA is usually highly
organized. It is not just a random set of instructions.
A key fact about an ISA is the number of bits per
instruction. This can be fixed or variable.
A second key fact about an ISA is the basic operating
model of the CPU. (Stack, accum, GPR)
Explain how stack, accumulator, and register architectures
work and how they differ. What are their advantages and
disadvantages? Which one is most common today? -
,2|Page
Answers-In a stack architecture, the stack is an implicit
operand of every operation.
Only the top element or elements of the stack can be
accessed.
In an accumulator architecture, the accumulator is an
implicit operand of every binary operation. The other
operand is in memory, creating lots of bus traffic
In register architectures, registers can be used instead of
memory. Faster than accumulator architecture. Efficient
implementation for compilers. Results in longer
instructions because all operands need to be explicitly.
The most common architecture is the GPR (General
Purpose Register) system.
A stack machine and an accumulator machine both
commonly have one address. How do they differ? -
Answers-The stack is an implicit operand of every operand
of every operation and an accumulator is an implicit
operand of every binary operation.
, 3|Page
What is postfix (reverse Polish) notation? Which type of
architecture requires it? Why? - Answers-Postfix notation
is a mathematical notation in which every operator follows
all of its operands
Required by stack machines, no need for parentheses,
high efficiency, very simple
What does GPR stand for? What are three types of GPR
machines? How do they differ? - Answers-General
purpose register.
There are three types: Memory - memory where two or
three operands may be in memory
Register - memory where at least one operand of an
instruction must be in a register
Load - store where no operands may be in memory except
for the LOAD and Store instructions
How do 2-address and 3-address register architectures
differ? - Answers-Four-byte instructions (2 or 3 addresses)
RS: register to memory RX: register to memory, with
another register as an index register
EEE 463 Final Exam Newest Actual Exam With
Complete Questions And Correct Detailed
Answers||Verified Exam!!! (Verified Answers) |Already
Graded A+||Newest Exam!!!
What is an instruction set? - Answers-The instruction set
architecture (ISA) of an architecture is the set of
instructions that the CPU can handle.
What are some important features that can be used to
characterize an ISA? - Answers-ISA is usually highly
organized. It is not just a random set of instructions.
A key fact about an ISA is the number of bits per
instruction. This can be fixed or variable.
A second key fact about an ISA is the basic operating
model of the CPU. (Stack, accum, GPR)
Explain how stack, accumulator, and register architectures
work and how they differ. What are their advantages and
disadvantages? Which one is most common today? -
,2|Page
Answers-In a stack architecture, the stack is an implicit
operand of every operation.
Only the top element or elements of the stack can be
accessed.
In an accumulator architecture, the accumulator is an
implicit operand of every binary operation. The other
operand is in memory, creating lots of bus traffic
In register architectures, registers can be used instead of
memory. Faster than accumulator architecture. Efficient
implementation for compilers. Results in longer
instructions because all operands need to be explicitly.
The most common architecture is the GPR (General
Purpose Register) system.
A stack machine and an accumulator machine both
commonly have one address. How do they differ? -
Answers-The stack is an implicit operand of every operand
of every operation and an accumulator is an implicit
operand of every binary operation.
, 3|Page
What is postfix (reverse Polish) notation? Which type of
architecture requires it? Why? - Answers-Postfix notation
is a mathematical notation in which every operator follows
all of its operands
Required by stack machines, no need for parentheses,
high efficiency, very simple
What does GPR stand for? What are three types of GPR
machines? How do they differ? - Answers-General
purpose register.
There are three types: Memory - memory where two or
three operands may be in memory
Register - memory where at least one operand of an
instruction must be in a register
Load - store where no operands may be in memory except
for the LOAD and Store instructions
How do 2-address and 3-address register architectures
differ? - Answers-Four-byte instructions (2 or 3 addresses)
RS: register to memory RX: register to memory, with
another register as an index register
