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

Difference between panel and group box classes, Difference between Panel an...

Difference between Panel and Group Box classes? Panel & Group box both can used as container for other controls like radio buttons & check box. The dissimilarity in panel & gro

Advantages of instruction set architecture, Advantages of Instruction set a...

Advantages of Instruction set architecture: Stack Advantages : it is simple Model of expression evaluation (reverse polish). Contain Short instructions. Disadvanta

When can we see layer groups in gimp, Sometimes it is nice to place layers ...

Sometimes it is nice to place layers in groups. It makes them simple to organize when you have lots of them. It also means you can simply apply the similar effect to lots of layers

Inherent addressing, Inherent addressing   Here the address is already b...

Inherent addressing   Here the address is already built in to the instruction i.e. inherent to the code     ABA  ; Add A to B and store the answer in A  Simple programs using

Replacement and substitution, Replacement and substitution: However, e...

Replacement and substitution: However, equivalences allow us to change one sentence with another without affecting the meaning, it means we know already that replacing one sid

Explain classless inter-domain routing, Explain Classless Inter-Domain Rout...

Explain Classless Inter-Domain Routing. It is a new addressing scheme for the internet that permits for more efficient allocation of IP addresses than old class A, B and C addr

Explain applications of parallel processing, APPLICATIONS OF PARALLEL PROCE...

APPLICATIONS OF PARALLEL PROCESSING Parallel computing is an development of sequential computing which tries to emulate what has always been the condition of affairs in natural

Concept of multithreading, Concept of Multithreading: These troubles incre...

Concept of Multithreading: These troubles increase in the design of large-scale multiprocessors such as MPP as discussed above. Thus, a solution for optimizing this latency should

Explain chaining method, Chaining: In this method, instead of hashing func...

Chaining: In this method, instead of hashing function value as location we use it as an index into an array of pointers. Every pointer access a chain that holds the element having

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