Nanoprogramming - computer architecture, Computer Engineering

Assignment Help:

Nanoprogramming:

  •  Second compromise: nanoprogramming
  •  it use a 2-level control storage organization
  •  Top level is a vertical format memory
  •  Output of the top level memory process the address register of the bottom (nano- level) memory
  •  Nanomemory uses the horizontal format
  •  Generate the real control signal outputs
  •  The benefit to this method is significant saving in control memory size (bits)
  •  Disadvantage is more difficulty and slower operation (doing 2 memory accesses for each microinstruction)

Nano programmed machine

1589_Nanoprogramming.png

 

  • Instance : Assume that a system is being designed with 200 control points and 2048 microinstructions

o   Suppose that only 256 different combinations of control points are ever used

o   A single-level control memory would need 2048x200=409,600 storage bits

  •   A nano programmed system would utilize
  •   Microstore of size 2048x8=16k
  •   Nanostore of size 256x200=51200
  •   Total size = 67,584 storage bits
  •   Nano programming has been used in many CISC microprocessors

 


Related Discussions:- Nanoprogramming - computer architecture

What are the various hazards encountered in pipelining, What is pipelining?...

What is pipelining? What are the various hazards encountered in pipelining?  Explain in detail. The major characteristics of a pipeline are: a) Pipelining cannot be exe

Coso framework, The COSO Framework consists of six broad classes of control...

The COSO Framework consists of six broad classes of control activities. Initial responses should identify and define one of the broad classes (Ex: segregation of duties or indepe

Structure of input - output interface, Q. Structure of Input - Output Inter...

Q. Structure of Input - Output Interface? Due to complexity and number of external devices that I/O interface control, there is not any standard structure of I/O interface. Let

Symbolic reasoning, An expert system also represents knowledge symbolica...

An expert system also represents knowledge symbolically as sets of symbols that stand for problem concepts. In AI jargon symbol is a string of characters that stands for

Dynamic address translation - computer architecture, Dynamic address transl...

Dynamic address translation :  If, when executing an instruction, a CPU fetches an instruction located at a specific virtual address, or fetches data from a particular virtual

Crafting an isa - computer architecture, Crafting an ISA: We will l...

Crafting an ISA: We will look at some decisions facing an instruction set architect, and In the design of the MIPS instruction set how those decisions were made. MIPS

Classical approach - canonical genetic algorithm, Classical approach - Cano...

Classical approach - Canonical genetic algorithm: However returning to the classical approach, as there example, whether solving a particular problem involved finding a set of

Critical capabilities for superior firm performance, What are the critical ...

What are the critical capabilities for superior firm performance in e-commerce? Three firm capabilities which are critical for superior firm performance within e-commerce are:

Find the largest and the smallest array values, Q. Find the Largest and the...

Q. Find the Largest and the Smallest Array Values? Write down a program to find the largest as well as the smallest numbers from a given array. This program uses JGE (jump grea

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