Explain about variable-length of instructions, Computer Engineering

Assignment Help:

Q. Explain about Variable-Length of Instructions?

With the better understanding of computer instruction sets designers developed the idea of having a range of instruction formats of different length. What could be benefits of such a set? The benefits of this scheme are:

  • Large number of operations can be offeredthat have different lengths of instructions.
  • Flexibility in addressing scheme can be offered compactly andefficiently.

But the fundamentalshortcoming of such a scheme is to have a complex CPU.

A significant feature about these variables length instructions is: The CPU is not aware about length of next instruction that is to be fetched. This problem can be controlled if every instruction fetch is made equal to size of the longest instruction. So sometimes in a single fetch multiple instructions can be fetched.


Related Discussions:- Explain about variable-length of instructions

Benefits of traditional hard disks and cd-rom, Q. Benefits of traditional h...

Q. Benefits of traditional hard disks and CD-ROM? CD-ROM is suitable for distribution of large amounts of data to a large number of users. CD-ROMs are a general medium these da

Java database connectivity, Java Database Connectivity (JDBC) With two...

Java Database Connectivity (JDBC) With two different types of technologies available in the market today viz., the Windows and the Java technologies developed by the Microsoft

Global business-to-consumer e-commerce, "Global business-to-consumer e-comm...

"Global business-to-consumer e-commerce sales will pass the 1 trillion euro ($1.25 trillion) mark by 2013, and the total number of Internet users will increase to approximately 3.5

#microprocessor, Program to transfer 10 byte of data from DMS to EMS using ...

Program to transfer 10 byte of data from DMS to EMS using 8086 instructions

why doesn''t c have nested functions, It's not trivial to execute nested f...

It's not trivial to execute nested functions such that they have the proper access to local variables in the having function(s), so they were deliberately left out of C as a simpli

Explaintask and parallel task, Task   A task is logically discrete ...

Task   A task is logically discrete section of computational work. A task is normally a program or else set of instructions which are executed by a processor. Parallel

Give the solutions for critical section problem, Give the solutions for cri...

Give the solutions for critical section problem? A solution to the critical section problem must specify the subsequent requirements. (a) Mutual exclusion (b) Progress (c)

What is the different between index and subscript, Subscript refers to the ...

Subscript refers to the array of occurrence, whereas Index shown an occurrence of a table element. An index can only modified using perform, search & set. Require to have an index

Select-options and parameters statement , The fields specified by select-op...

The fields specified by select-options and parameters statement cannot be grouped together in the selection screen. No, the fields specified by select-options and parameters s

Explain an interrupt, Used to interrupt CPU normal implementation routine a...

Used to interrupt CPU normal implementation routine and to get its attention .Mostly generated by an external devices, timers, counters...etc

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