Instruction set architecture Problems by g4509244

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									Instruction set architecture
         Problems
         Prof. Sin-Min Lee
   Department of Mathematics and
         Computer Science
What is the computer architecture ? How is it
different from the implementation ?
(Instruction set) architecture is the interface
between the hardware and the low-level
software.
•Architecture is anything a programmer needs
to know to make a binary program work
correctly.
•An implementation is hardware that obeys the
architecture abstraction.
Computer programs are represented in several levels.
(1) Name each level.
(2) Write sample codes (two lines per level) of each level.
(3) What are the names of programs that translate one level to a
lower level ?
          Operand Addressing




•     Jan Lukasiewicz (1878 – 1956)
    –     Introduced “Polish Notation” (prefix notation)
    –     We call postfix notation “Reverse Polish Notation”, or “RPN”
          (used in many HP calculators)

								
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