Asked by: Jodie Napoli
technology and computing databases

What is a blocking statement?

Last Updated: 13th March, 2020

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A blocking statement is a one step process i.e evaluate the RHS of the expression and update the LHS without any delay while Nonblocking is a two step process i.e. a) Evaluate the RHS expression at the beginning of time step and b) Update the LHS at the end of time step.

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Hereof, what is blocking assignment?

The output of an assign statement is always equal to the specified function of it's inputs. "blocking" and "nonblocking" assignments only exist within always blocks. A blocking assignment takes affect immediately it is processed. A nonblocking assignment takes place at the end of processing the current "time delta".

Beside above, can we use assign statement in always block? Assign is a continuous assignment statement which is used with wires in Verilog. assign statements don't go inside procedural blocks such as always. Registers can be given values in an always block. Just use <= instead of assign =.

Considering this, what is blocking and non blocking call?

Blocking and Non Blocking Function Calls: Blocking and synchronous mean the same thing: you call the API, it hangs up the thread until it has some kind of answer and returns it to you. Non-blocking means that if an answer can't be returned rapidly, the API returns immediately with an error and does nothing else.

What is always * in Verilog?

1 Introduction. Sections 1.1 to 1.6 discuss always@ blocks in Verilog, and when to use the two major flavors of always@ block, namely the always@( * ) and always@(posedge Clock) block. 1.1 always@ Blocks. always@ blocks are used to describe events that should happen under certain conditions.

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