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

Tag do you use to add a hyperlink column to the DataGrid, What tag do you u...

What tag do you use to add a hyperlink column to the DataGrid?   Anchor tag is used to add a hyperlink column to the data grid

Define syntax of mpi_scatter function, Q. Define syntax of MPI_Scatter func...

Q. Define syntax of MPI_Scatter function? MPI_Scatter(Sendaddr, Scount, Sdatatype, Receiveaddr, Rcount, Rdatatype, Rank, Comm): 'Using this function process with rank' ran

Microprocessor, how to stud for subject microprocessor

how to stud for subject microprocessor

Which way do twin twist props on a boat rotate, Q. Which way do twin twist ...

Q. Which way do twin twist props on a boat rotate when propelling the boat forward? Answer:- In opposite direction however they are designed to propel the boat forward eve

State about movable joystick, State about movable joystick In another t...

State about movable joystick In another type of movable joystick, the stick is used to activate switches that cause the screen cursor to move at a constant rate in the selected

Software engineering, assignment on transaction flow, transform flow, trans...

assignment on transaction flow, transform flow, transform mapping: refining the architectural design

Explain function of dual slope analogue to digital converter, Draw and expl...

Draw and explain the function of dual slope analogue to digital converter. Derive the equations used. Ans.               Dual slope A/D converter : This has 4 main blocks.

Determine about the voice systems, Determine about the Voice Systems Sp...

Determine about the Voice Systems Speech recognizers are used in some graphics workstations as input devices to accept voice commands. The voice-system input can be used to ini

What are the disadvantages of fcfs scheduling algorithm, What are the disad...

What are the disadvantages of FCFS scheduling algorithm as compared to shortest job first (SJF) scheduling? Disadvantages: (i) Waiting time can be huge if short requests w

Explain real time operating system, Explain Real Time Operating System? ...

Explain Real Time Operating System? Real time operating System: A real-time operating system has suitably-defined, fixed time constraints. Processing should be done in the d

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