Write policy-microprocessor, Assembly Language

Write Policy

A write policy determines how the cache deals with a write cycle. The 2 common write policies areWrite-Throughand Write-Back. In Write-Back policy, the cache behave like a buffer. That is, when the processor begins a write cycle the cache receives the data and end the cycle.  The cache then writes the data  back  to  main  memory  when  the  system  bus  is  available. This method provides the higher performance by let the processor to continue its job when main memory is updated at a later time. However, controlling writes of  themain memory increase the cache's complexity and price. The second method is the Write-Through policy. The processor writes through the cache to main memory. The cache can update its contents, however the write cycle does not end till the data is stored into main memory. This method is less complicated and therefore less expensive to implement. The efficiency with a Write-Through policy is lower since the processor might wait for main memory to accept the data.

 

Posted Date: 10/10/2012 6:08:14 AM | Location : United States







Related Discussions:- Write policy-microprocessor, Assignment Help, Ask Question on Write policy-microprocessor, Get Answer, Expert's Help, Write policy-microprocessor Discussions

Write discussion on Write policy-microprocessor
Your posts are moderated
Related Questions
Write an 8086 program to find out the number of positive numbers and negative numbers from a given series of signed numbers include flow chart ..

write a Mips program that read a string AND PRINT IT ON THE SCREEN

Description: LC3 allows input from keyboard and output to display on the screen. This lab will exercise the input/output capability using LC-3 Assembly language. Procedure

I have two homework assignments due in 10 hours for the x86 processor assembly language


Write a MC68HC12 assembly language program to average ten 16-bit values that are stored starting at address $1100. Place the two-byte result at $1110. Use indexed addressing. Us

Overview of Intel Pro-Pentium : The 2 chief players in the PC CPU market are Motorola and Intel.  Intel has enjoyed incredible success with its processors since the early 1980

How is bob different from johnny in the outsiders

DW : Define Word:- The DW directive serves the same purposes as the DB directive, but now it makes the assembler  which reserves thenumber ofmemory words (16-bit) instead of by

Zero flag: The next line compares the value in register. A with the value 1. If they are equivalent, the Zero flag is set (to 1). The next line then jumps to start: only if th