Illustrate the accumulator architecture, Computer Engineering

Assignment Help:

Accumulator Architecture: An accumulator is anespecially designated register which supplies one instruction operand and receives result. Instructions in such machines are usually one-address instructions. The most common early architectures were DEC PDP-8, IBM 7090 etc.

On an Accumulator machine 'C = A + B'can be implemented as:

        LOAD A        // Load memory location A in accumulator

        ADD B          // Add memory location B to accumulator

        STORE C     // Store accumulator value in memory location C

Accumulator Architecture: Pros and Cons

  • Implicit use of accumulator saves instruction bits
  • Result is ready for immediate reuse however has to be saved in memory if subsequent computation doesn't use it right away.
  • More memory accesses needed than stack. Consider a program to do expression:

        A = B * C + D * E.

2162_Illustrate the Accumulator Architecture.png


Related Discussions:- Illustrate the accumulator architecture

What is the difference between in two lines of verilog code, What is the di...

What is the difference between the following two lines of Verilog code? #5 a = b; a = #5 b; #5 a = b; Wait five time units before doing the action for "a = b;". Value assig

Explain working of counters, Q. Explain working of Counters? A counter ...

Q. Explain working of Counters? A counter is a register that goes through a predetermined sequence of states when clock pulse is applied. In principle value of counters is incr

Automatic stock control system in a supermarket, Automatic Stock Control Sy...

Automatic Stock Control System in a Supermarket -  Bar codes are associated to all goods/items sold by the supermarket as a means of identification -  Every bar code is asso

Explain clr, What is CLR?  CLR(Common Language Runtime) is the major r...

What is CLR?  CLR(Common Language Runtime) is the major resource of .Net Framework. It is collection of services like garbage collector, exception handler, jit compilers etc. w

What is a unix device driver, A UNIX device driver is ? Ans. A UNIX devi...

A UNIX device driver is ? Ans. A UNIX device driver is structured in two halves termed as top half and bottom half.

Explain 100 line exchange with two-motion line finders, Explain 100 line ex...

Explain 100 line exchange with two-motion line finders. Design: In such design, here are 24 line finders. When any of the 100 subscribers has to find access to any of the 24

Properties of electronic cash, Properties : 1.  Monetary Value: Monetar...

Properties : 1.  Monetary Value: Monetary value must be backed by also cash, bank - authorized credit cards or bank certified cashier's cheque. 2.  Interoperability: E-cash

What are the major functions of io system, What are the major functions of ...

What are the major functions of IO system?  i. Interface to the CPU and memory by the system bus.  ii. Interface to one or more IO devices by tailored data link.

What are the elements of analysis model, What are the elements of Analysis ...

What are the elements of Analysis model? i. Data Dictionary ii. Entity Relationship Diagram iii. Data Flow Diagram iv. State Transition Diagram v. Control Specifica

Explain characteristics of prototyping, Question: (a) List five main c...

Question: (a) List five main characteristics of ‘Prototyping'. (b) Describe briefly why ‘Prototyping' is essential to Rapid Application Development. (c) Describe the 2 t

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