What do you mean by execution unit, Computer Engineering

Assignment Help:

Q. What do you mean by Execution Unit?

Execution unit performs all ALU operations. Execution unit of 8086 is of 16 bits. It also contains the control unit that instructs bus interface unit about which memory location to access and what to do with data. CU also executes execution and decoding of instructions. EU comprises the subsequent:

(a) Control Circuitry, Instruction Decoder and ALU

The 8086 control unit is mainly micro-programmed control. Additionally it has an instruction decoder that translates an instruction in sequence of micro operations. ALU executes the needed operations under the control of CU that issues essentialcontrol and timing sequences. 

(b) Registers

All CPUs have a defined number of operational registers. 8086 has various general purpose and special purpose registers. We would discuss these registers in subsequent sections.


Related Discussions:- What do you mean by execution unit

Give difference between assembler and interpreter, Give difference between ...

Give difference between assembler and interpreter. Assembler: It is the translator for an assembly language of computer. An assembly language is a low-level programming langu

Over fitting considerations - artificial intelligence, Over fitting Conside...

Over fitting Considerations - artificial intelligence Left  unexamined ,  back  propagation  in  multi-layer  networks  may  be very susceptible  to over fitting itself to the

Html, discuss hypertext mark up language

discuss hypertext mark up language

Design a mod-6 synchronous counter, Design a MOD-6 synchronous counter usin...

Design a MOD-6 synchronous counter using J-K Flip-Flops. Ans: Design of Mod-6 Counter:   To design the Mod-6 synchronous counter, contain six counter states (that is, from

Differences between a database index and a match code, What are the differe...

What are the differences between a Database index and a match code? Match code can have fields from several tables whereas an index can have fields from only one table.

What are the features of client/server computing, What are the features of ...

What are the features of Client/Server Computing? Although there are several different configurations, different hardware and software platforms and even dissimilar network pro

Basic logic gates, Basic logic gates Introduce the basic logic gates i...

Basic logic gates Introduce the basic logic gates in terms of a) their function, b) their circuit symbol, c) their truth table and d) their equivalent in Boolean a

C++, Byteland county is very famous for luminous jewels. Luminous jewels ar...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Why isdn handles data pertaining, ISDN handles data pertaining to? ISDN...

ISDN handles data pertaining to? ISDN handles data pertaining to all digital services.

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