Explain the differences of casex and casez, Computer Engineering

Assignment Help:

Explain the differences of casex and casez over the case statement?

casex operator has to be used when both high impedance value (z) and unknown (x) in any bit  has  to  be  treated  as  a  don't-care  during  case  comparisons.  casez  operator  treats  (z) operator as a don't-care during case comparisons.

In both cases, bits which that are treated as don't-care won't be considered for comparison, that is, only bit values other than don't care bits are used in comparison. Wildcard character "?" can be used in place of "z" for literal numbers.

 


Related Discussions:- Explain the differences of casex and casez

Illustrate minimization of gates, Q. Illustrate Minimization of Gates? ...

Q. Illustrate Minimization of Gates? The generalization of Boolean expression is much useful for combinational circuit design. The subsequent three techniques are used for this

Intentional hacking helps in maintaining better security, Intentional hacki...

Intentional hacking helps in maintaining better security Several companies employ professionals as security specialists whose basic job is to detect and cover loopholes in t

State about the object oriented analysis design, State about the Object ori...

State about the Object oriented analysis design Object oriented analysis design (OOAD) is a bottom up approach which supports viewing system as a set of components (objects) w

What is verilog function, What is Verilog function - A function is una...

What is Verilog function - A function is unable to enable a task however functions can enable other functions. - A function would carry out its required duty in zero simula

Ip fragmentation of user datagarm, IP specified that datagram can arrive in...

IP specified that datagram can arrive in a different order than they were sent. If a fragment from one datagram arrives at a destination before all the segments from a previous dat

What is a parent class of all java classes, Parent class of all Java classe...

Parent class of all Java classes is? All Java class's parent class is java. lang.object.

Compare memory mapped i/o with i/o mapped i/o, Compare memory mapped I/O wi...

Compare memory mapped I/O with I/O mapped I/O. Memory Mapped I/O Scheme: In this scheme there is only one address space. Address space is stated as all possible addresses tha

What is dynamic random access memory, What is dynamic random access memory ...

What is dynamic random access memory Computer memory today comprises mainly of dynamic random access memory (DRAM) chips which have been built into multi-chip modules that are

Every sheet in a workbook in excel, Is there a way to apply the same format...

Is there a way to apply the same formatting to every  sheet in a workbook in Excel? Ans)  Yes. To do this, you will require to right click on one of the worksheet tabs and th

What are the factors determine the control signals, What are the factors de...

What are the factors determine the control signals? Contents of the control step counter Contents of the instruction register Contents of the condition code flag

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