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Discuss in detail Table management Techniques?
An Assembler uses the subsequent tables:
OPTAB: Operation Code Table consists of mnemonic operation code and machine language equivalent of this.
SYMTAB: Symbol Table keeps symbolic label, operand and their consequent machine.
LITTAB is a table of literals utilized in the program
For efficiency reasons SYMTAB should remain in main memory during passes I and II of the assembler. Table of literals is not accessed as frequently as SYMTAB; though this may be accessed sufficiently often to justify its presence in the memory. Only a part of LITTAB can be remained in memory, if memory is at a premium. OPTAB must be in memory during pass I.
Nonvolatile Read Write Memory, also kown as Flash memory. It is also called as shadow RAM.
Why is the data bus in most microprocessors bidirectional while the address bus is unidirectional? Data Bus: These lines are used to send data to memory by output ports and
Compare electromechanical switching system with electronic switching system. Comparison of electromechanical switching system with electronic switching systemgiven below:
Application Using Shift Operations Rotate and Shift instructions are helpful even for division andmultiplication. These operations are not normally available in high-level lang
What is SAP locking? It is a mechanism for describing and applying logical locks to database objects.
The term byte stuffing refers to: The term byte stuffing consider as to data stuffing used along with character -oriented hardware.
Array Processing We have seen that for executing vector operations the pipelining conception has been used. There is other method for vector operations. If we have array of n p
List the steps needed to perform page replacement. The steps required to perform page replacement are: 1. Find out which page is to be removed from the memory. 2. Perfor
What are the steps in executing the program? 1.Fetch 2.Decode 3.Execute 4.Store
Q. How do you classify the neutrons in terms of its kinetic energy? Neutrons are classified as-per to their kinetic energy as (a) Slow neutrons as well as (b) fast neutrons.
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