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Why do we need Registers?
If tcpu is cycle time of CPU which is the time taken by CPU to execute a well-defined micro-operation employing registers and tmem is memory cycle time which is the speed at which memory can be accessed by CPU then (tcpu/tmem) is in the range of 2 to 10 i.e. CPU is 2 - 10 times faster than memory. So CPU registersare the fastest temporary storage areas. So the instructions whose operands are stored in fast CPU registers can be executed fast in comparison to instructions whose operands are in main memory of a computer. Every instruction should designate the registers it will address. So a machine needs a large number of registers.
Figure: CPU with general register organisation
In order to support IA-32 Itanium can switch in 32-bit mode with special jump escape instructions. IA-32 instructions have been mapped to Itanium's functional units. But as Itanium
Shared Memory Refers to the memory part of a computer system in which the memory can processed directly by any of the processors in the system. Distributed Memory Refer
Why EPROM chips are mounted in packages that have transparent window? Since the erasure needs dissipating the charges trapped in the transistors of memory cells. This can be co
Q. Illustrate Minimization of Gates? The generalization of Boolean expression is much useful for combinational circuit design. The subsequent three techniques are used for this
what is meant by scan conversion?
Give the organization of centralized store program control ( SPC). Within stored program control systems, a program or set of instructions for the computer that is stored in
Use as few gates as possible, design a NAND-to-AND gate network that realize the following Boolean algebra expression. A'BC'D + ABC'D' + A'B'CD' + AB'C'D'
What is Race-around problem? How can you rectify this? The clock pulse which remains into the 1 state whereas both J and K are equal to 1 will reason the output to complement a
What does the c$ command do from command mode using Vi Editor? Ans) C$ will start from the character under the curser till the finish of line. So when you use this command it wi
Q. Displaying the List of Files with DIR? You can display the list of files kept in a diskette or hard disk with the DIR commend. This Commends list files and sub directories i
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