Cache components-microprocessor, Assembly Language

Assignment Help:

Cache components

The cache sub-system may be divided into 3 functional blocks: Tag RAM, SRAM and theCache Controller. In real designs, these blocks can be implemented  by multiple chips or all can be combined into a single chip.

SRAM :

SRAM (Static Random Access Memory) is memory block which holds the data and the size of the SRAdetermines the size of the cache.

Tag RAM :

Tag RAM (TRAM)  is a small part of SRAM that stores the addresses  of the data that is stored in theSRAM.

Cache controller :

The cache controller is the mind of the cache. Its responsibilities include: performing the  snarfs and snoops, updating the  TRAM  and SRAM and implementing  the write policy.  Also the cache controller is responsible fordetermining if memory request is cacheable  and if a request is a cache miss or hit. The cache controller detects cache misses and controls receiving andsending the cells. This device also controls interface. The cache controller have a status register, which may be read by the processor. The  bits of the status register can be used to signal to the processor.

The cache controller accepts commands from the processor. Following are the examplesof the commands are

  • Reset the Tag Rams
  • Set interrupt mask

 

The cache controller will send a cell to request a cache line when a miss occurs. This cell can also flush an existing dirty line. It  is expecting cell to be returned containing the data, and the CPU is stalled till such a cell is received.

 


Related Discussions:- Cache components-microprocessor

Pointer(ptr)-assemblers directive-microprocessor, PTR : Pointer:- The p...

PTR : Pointer:- The pointer operator which is used to declare the type of a variable, label or memory operand. The operator PTR is prefixed by either WORD or BYTE. If the prefi

Program to find the largest number in an array, Write a MC68H12 assembly la...

Write a MC68H12 assembly language program to find the largest number in an array of ten 8-bit numbers. The array is stored in memory locations starting at address $1100. Use branch

Div-idiv-arithmetic instruction-microprocessor, DIV: Unsigned Division:- T...

DIV: Unsigned Division:- This instruction performs unsigned division operation. It divides an unsigned word or double word by a 16-bit or 8-bit operand. The dividend might be in t

Program help, Could I get an estimate on how much it would cost to write a ...

Could I get an estimate on how much it would cost to write a program in assembly language?

Compute the fibonacci sequence - assembly program, Compute the Fibonacci se...

Compute the Fibonacci sequence - assembly program: Problem: Fibonacci   In this problem you will write a program that will compute the first 20 numbers in the Fibonacci sequ

Odd and even numbers, hi, i''m new to assembly language and my teacher told...

hi, i''m new to assembly language and my teacher told us to look for an example of the odd and even numbers program using debug.exe in ms dos as a guide since we just started. plea

Assignment, Write an assembly program that adds the elements in the odd ind...

Write an assembly program that adds the elements in the odd indices of the following array. Use LOOP. What is the final value in the register?

StrNCpyAsm, ;StrNCpyAsm - copy zero terminated string2 to zero terminated s...

;StrNCpyAsm - copy zero terminated string2 to zero terminated string1, ; but copy no more than count (parameter) characters ; or the length of string2, whi

Assignment, 1. Write an assembly program that adds the elements in the odd ...

1. Write an assembly program that adds the elements in the odd indices of the following array. Use LOOP. What is the final value in the register? array1 DWORD 10, 20, 30, 40, 50, 6

8086 microprocessors, program to find negative and positive integers from g...

program to find negative and positive integers from given signed numbers with output and explanation of every instructions.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd