Same reg variable in an always block, Computer Engineering

Assignment Help:

What value is inferred when multiple procedural assignments made to the same reg variable in an always block?

When  there  are  multiple  nonblocking  assignments  made  to  the  same  reg  variable  in  a  sequential always block, then the last assignment is picked up for logic synthesis. For example

always @ (posedge clk) begin

out <= in1^in2;

out <= in1 &in2;

out <= in1|in2;

2033_cse.png

In the instance just shown, it's the OR logic that is the last assignment. Hence, logic synthesized was indeed the OR gate. Had the last assignment been the  "&" operator, it would have synthesized an AND gate.

 

 


Related Discussions:- Same reg variable in an always block

Benefits of traditional hard disks and cd-rom, Q. Benefits of traditional h...

Q. Benefits of traditional hard disks and CD-ROM? CD-ROM is suitable for distribution of large amounts of data to a large number of users. CD-ROMs are a general medium these da

Illustarte basic flip-flops, Q. Illustarte Basic Flip-flops? Let's firs...

Q. Illustarte Basic Flip-flops? Let's first see a ordinary latch. A latch or flip-flop can be created employing two NOR or NAND gates. Figure (a) presents logic diagram for S-R

What is server in sap terminology, What is Server in SAP terminology? ...

What is Server in SAP terminology? A component can having of one process or a group and is then known as the server for the respective service.

Evolutionary approaches boil down - artificial intelligence, Evolutionary a...

Evolutionary approaches boil down - artificial intelligence: In fact as we will see whether evolutionary approaches boil down to like (i) just to identify how to represent pos

Example on passing parameters through stack, Q. Example on Passing Paramete...

Q. Example on Passing Parameters through Stack? PROGRAM: Version 3 DATA_SEG               SEGMENT                         BCD DB 25h; Storage for BCD test value BIN

Background, Background, Examples and Hypothesis: Now we will switch of...

Background, Examples and Hypothesis: Now we will switch off with three logic programs. So very firstly, we will have the logic program representing a set of positive examples

In a for loop, In a for loop, if the condition is missing, then, It is s...

In a for loop, if the condition is missing, then, It is supposed to be present and taken to be true.

Difference between char a[] = "string", What is the difference between char...

What is the difference between char a[] = "string"; and char *p = "string";? Ans) In the first case 6 bytes are assigned to the variable a which is fixed, where as in the secon

We declare a table control in the abap/4 program, How can we declare a tabl...

How can we declare a table control in the ABAP/4 program? Using the syntax controls type tableview using screen .

Running time - metrics for performance evaluation, Running Time - Metrics f...

Running Time - Metrics for performance evaluation: Running time is amount of time consumed in execution of an algorithm for a provided input on N-processor based parallel comp

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