Explain fundamental instruction set characteristics, Computer Engineering

Assignment Help:

Q. Explain fundamental instruction set characteristics?

Let's look into a number of fundamental instruction set characteristics:

  • The operands can be addressed in memory, registers or I/O device address.
  • Instruction having less number of operand addresses in an instruction may need lesser bits in the instruction though it also restricts range of functionality which can be performed by instructions. This indicates that a CPU instruction set having less number of addresses has longer programs that means longer instruction execution time. On the other side having more addresses may lead to more complex processing circuits anddecoding.
  • Most of instructions don't need more than three operand addresses. Instructions having less addresses than three use registers implicitly for operand locations since using registers for operand references can yield in smaller instructions as only few bits are required for register addresses as against memory addresses.
  • The kind of internal storage of operands in CPU is most fundamental differentiation.

The three most general types of ISAs are: 

1.  Evaluation Stack: Operands are implicitly on top of stack. 

2.  Accumulator: One operand is implicitly the accumulator. 

3. General Purpose Register (GPR): All operands are explicit either memory or registers locations.


Related Discussions:- Explain fundamental instruction set characteristics

Dynamic cons, i want dynamic cons simple program in c++

i want dynamic cons simple program in c++

Define hit ratio, Define Hit ratio. The performance of cache memory is ...

Define Hit ratio. The performance of cache memory is frequently measured in terms of quantity called hit ratio. Hit-Find a word in cache. Miss-Word is not found in cache.

Ds, explain about relations

explain about relations

Authorization bypass, Authorization Bypass is a frighteningly easy process ...

Authorization Bypass is a frighteningly easy process which can be employed with poorly designed applications or content management frameworks. You know how it is... you run a small

Describe the concepts of information systems delivery cycle, Write a 2-3 pa...

Write a 2-3 page paper (excluding title, abstract, introduction, and references) describing the concepts of the Information Systems Delivery Cycle (SDLC) and how the Project Manage

Explain different system calls for performing different task, Write down di...

Write down different system calls for performing different kinds of tasks. The major types of system calls are given as: Process Control: These kinds of system calls are

What are the concerns for growth of e-commerce in india, What are the conce...

What are the concerns for growth of e-commerce in India?  Government as Facilitator for the growth of e-commerce has taken certain steps: Promotion of competitive teleco

General purpose register - assembly language, General purpose register - as...

General purpose register - assembly language: Basic ISA Classes: Accumulator: 1 address add Aacc ←acc + mem [A] Stack: 0 address add to s ←to s+ next G

Connectivity options accessible to internet subscribers, What are the diffe...

What are the different connectivity options accessible to Internet Subscribers? Explain in detail. Internet Connectivity Options: Internet access is perhaps one of the ma

Interfacing assembly language routines, By now you can write procedures bot...

By now you can write procedures both internal andexternal and pass parameters particularly through stack.Let's us use these concepts to see how assembly language can be interfaced

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