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

Sap security audit log, You are required to use software of your choice (sp...

You are required to use software of your choice (spreadsheet, database, statistical package etc) to analyze the provided SAP security audit log data ( Userdata.xls ), generate appr

What does a lock object involve, What does a lock object involve? The t...

What does a lock object involve? The tables. The lock argument.

What are the different scheduling policies in linux, What are the different...

What are the different scheduling policies in Linux The Linux scheduler has three different scheduling policies: one for 'normal'Processes, and two for 'real time' processes

What is cursor, The illustration of the mouse on-screen. Depending on your ...

The illustration of the mouse on-screen. Depending on your settings, the cursor can be many dissimilar things.

Propositional model, Propositional model: Hence a propositional model ...

Propositional model: Hence a propositional model was simply an assignments of truth values to propositions. In distinguish, a first-order model is a pair (Δ, Θ) where

Explain moores law and amdahls law, Question (a) Imagine you need to mo...

Question (a) Imagine you need to move people through a distance of 10 miles, with the following specifications. • Car: capacity = 5, speed = 60 miles/hour • Bus: capacity

Explain about iframe, Q. Explain about IFRAME? is an HTML 4.0 addition...

Q. Explain about IFRAME? is an HTML 4.0 addition to frames toolbox. Presently only MSIE supports . Unlike frames created employing and

What are the registers generally contained in the processor, What are the r...

What are the registers generally contained in the processor? MAR-memory address register MDR-memory data register IR-Instruction Register RO-Rn-General purpose registe

Reflexes - artificial intelligence, Reflexes - artificial intelligence: ...

Reflexes - artificial intelligence: If an agent decides upon and executes an action in response to a sensor input without consultation of its world, then this can be considere

Find out data changing from special code to temporal code, Data can be chan...

Data can be changed from special code to temporal code by using ? Ans. By using Shift Registers data can be changed from special code to temporal code. A Register wherein data ge

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