State the term- use a define function, Computer Engineering

Assignment Help:

State the term- Use a define function

This is almost exactly the same approach as #define and -D compiler arg that C programs use. In your  Verilog  code,  use  a  'define  to  define  the  variable  condition  and  then  use  Verilog preprocessor directives such as 'ifdef. Use the '+define+' Verilog command line option. For an illustration:

... to run the simulation ..

verilog testbench.v cpu.v +define+USEWCSDF

... in your code ...

'ifdef USEWCSDF

initial $sdf_annotate (testbench.cpu, "cpuwc.sdf");

'endif

+define+ can also be filled in from your Makefile invocation, which in turn, can be finally filled in your UNIX prompt command line.

Defines are a blunt weapon since they are very global and you can only do so much with them asthey are a pre-processor trick. Consider the subsequent approach before resorting to defines.

 


Related Discussions:- State the term- use a define function

What are limitations of assembly language, What are limitations of assembly...

What are limitations of assembly language? i. It is changed to machine language using assembler which is time consuming when compared with machine language. ii. It is comple

Define flash memory, Define Flash Memory. It is an approach same to EEP...

Define Flash Memory. It is an approach same to EEPROM technology. A flash cell is based on a one transistor controlled by trapped charge just like an EEPROM cell.

What is event-driven control, What is event-driven control? Control res...

What is event-driven control? Control resides within a dispatcher or monitors that language, subsystem or OS provider. Developers attach application process to events and dispa

Describe loading disk operating system, Q. Describe Loading Disk Operating ...

Q. Describe Loading Disk Operating System? Different version of DOS, such as 2.0, 3.0, 3.2, 4.0, 5.0, 6.0, 6.2, 6.22, 7.0, 7.2 are present. The newer versions have additional

Example of prolog, Example of Prolog: We can say that this is also tru...

Example of Prolog: We can say that this is also true if there are four even numbers. Now we have our first rule: • If there are three or four even numbered cards, such play

What are the uses of interrupts, What are the uses of interrupts?  ...

What are the uses of interrupts?  Recovery from errors Debugging Communication among programs Use of interrupts in operating system

The goal of hashing, The goal of hashing is to produce a search that takes ...

The goal of hashing is to produce a search that takes   O(1) time

What is the function of an ip packet screening router, What is the function...

What is the function of an IP packet screening Router? Explain with the help of a diagram. Function of an IP Packet Screening Router: A screening router is the most fund

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