Cisc characteristics-microprocessor, Assembly Language

Assignment Help:

CISC Characteristics :

The design of an instruction  set for a computer  might take into consideration  not only machine language constraints,  but  also  the  requirements  imposed  on  the  use  of  high-level  programming  languages.  The translation from high-level to machine language programs is done by means of a compiler program. One cause for the trend to provide a complex instruction set is the desire to simplify the compilation and improve the overall computer performance.  The task of a compiler is to produce a sequence of machine instructions for each high-level language statement. The job is simplified if there are machine instructions that implement the statements directly. The important aim of CISC architecture is to attempt to provide a single machine instruction for each statement that is written in a high-level language .An Examples of CISC architectures are the Digital Equipment Corporation VAX computer and the IBM 370 computer.

The main characteristics of CISC architecture are:

1. A large number of instructions-usually from 100 to 250 instructions.

2. Some instructions that perform specialized tasks and are used infrequently.

3. A vast variety of addressing modes-typically from 5 to 20 different modes.

4. Variable-length instruction formats.

5. Instructions that manipulate operands in memory.

 


Related Discussions:- Cisc characteristics-microprocessor

Program to generate waveforms connected, Write a 68hc11 assembly language p...

Write a 68hc11 assembly language program which generation of the following waveforms connected to your DAC i)   Square wave ii)  Saw tooth waveform iii) Sine wave iv) U

Program to perform one byte bcd addition-assembly program, Program : Write...

Program : Write a program to perform a one byte BCD addition. Solution : It is consider that the operands are in BCD form, but the CPU considers it as hexadecimal and acco

General terms for cache-microprocessor, General terms for Cache : Cac...

General terms for Cache : Cache Hits : When the cache consisted the information requested, the transaction is said to be a cache hit. Cache Miss : When the cache does n

Need algorithm for multiplication in assemby with out mul, need algorithm f...

need algorithm for multiplication in assembly with out mul function?

Interrupt priority management-microprocessor, Interrupt Priority Management...

Interrupt Priority Management The interrupt priority management logic indicated in given figure can be implemented in several ways. It does not required to be present in system

Programming with an assembler-microprocessor, Programming with an assembler...

Programming with an assembler The procedure of hand-coding 8086 programs is somewhat tiresome; hence generally a programmer may find it hard to get a correct listing of the mac

Right triangle, code, Assembly Language How to print strings in Right Tria...

code, Assembly Language How to print strings in Right Triangle form?

Display control-microprocessor, Display control 8279  provides  a  16  ...

Display control 8279  provides  a  16  byte  display  memory  and  refresh  logic.  Every address in the display memory corresponds to a display unit with address zero represen

8086, to separate positive and negative numbers

to separate positive and negative numbers

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