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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
Permanently resident pages: Every virtual memory systems have memory areas that are "pinned down", for example cannot be swapped out to secondary storage, for instance:
As in PRAM there was not any direct communication medium between processors so a different model called as interconnection networks have been considered. In the interconnection net
Q. Evaluate Physical address of top of stack? Value of stack segment register (SS) = 6000h Value of stack pointer (SP) which is Offset = 0010h So Physical address of top
MINI PROJECT ON UNIVERSITY SCHEMA
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Define register file. All general purpose registers are combined into a one block called the register file.
Q. What is Laser Printers? Laser Printers are page printers. For print quality they also face same addressability issues as DMP/InkJet Printers. Though some other methods are p
decode the code
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