Case x and z difference which is preferable and why, Computer Engineering

Assignment Help:

Case x, z difference, which is preferable, why?

CASEZ :

Special version of case statement that uses a Z logic value to signify don't-care bits.

CASEX :

Special version of case statement that uses Z or X logic values to represent don't-care bits.

CASEZ  must be  used  for  case  statements  with  wildcard  don't  cares,  or else  use  of  CASE  is required; CASEX must never be used.

This is because:

Don't cares aren't allowed in the "case" statement. Hence casex or casez are required. Casex would automatically match any x or z with anything in the case statement. Casez would only match z's --x's require an absolute match.

Case

case Complete bitwise match between expression and case item expression casez enables for z values to be treated as don't cares.

casex allows for both x and z to be treated as don't cares.

 

2434_casex,y.png


Related Discussions:- Case x and z difference which is preferable and why

Various threats posed by server in client server environment, Explain vario...

Explain various threats posed through servers into a client server environment. Server Destroyed within an Accident: Power failures, Leaking pipes and equipment failures are no

Design issues of interconnection network, Design Issues Of Interconnection ...

Design Issues Of Interconnection Network The following are the problems, which should be considered while preparing an interconnection network. 1)   Dimension and size of n

Types of policies in e-commerce, 1- The Privacy Policy: The vendor must...

1- The Privacy Policy: The vendor must explain to the customer how all his information especially sensitive ones will be totally private, and no one can read them or use them i

Design a sequential circuit with two flip-flop and one input, Design a coun...

Design a counter modulo 4 (sequential circuit with two flip-flops and one input U) which work like that: 1. When U=0, the state of the flip-flop does not change. 2. Whe

Write a c++ program to explain three specific classes, Make a base class ca...

Make a base class called figure that store the dimensions of several geometrical objects and compute their areas. Explain a function set_dim( ),a standard member  function and show

Isoquants, what are the types of isoquants

what are the types of isoquants

Explain function of dual slope analogue to digital converter, Draw and expl...

Draw and explain the function of dual slope analogue to digital converter. Derive the equations used. Ans.               Dual slope A/D converter : This has 4 main blocks.

Determine the statement for array, Q. Determine the statement for array? ...

Q. Determine the statement for array? Determine the statement ALIGN A[i] WITH B[i] This statement aligns every A[i] with B[i] as displayed in Figure below. Figure

Explain the working principle of hard disk, Question : a) Hard disk is ...

Question : a) Hard disk is an important component of a computer. What type of memory is it? b) With the help of a diagram describe its features. c) Explain its working pr

How will this difference b interpreted, How will this difference b interpre...

How will this difference b interpreted? When one pointer is subtracted from another pointer, the number of elements between the two pointers always includes the element pointed

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