这两个代码在verilog阻塞和非阻塞赋值方面有什么区别? [英] What is the difference between these two codes interms of verilog blocking and non blocking assignments?

问题描述

块 1:

begin : block1
  X<= #50 10;
  X<= #150 100;
  #50 
  X<= #200 200;
  #500
  X<=#250 250;
end

块 2:

begin : block2
  X= #50 10;
  X= #150 100;
  #50
  X= #200 200;
  #500
  X=#250 250;
end

我想知道 X 被分配值的时间延迟方面的差异，有人能帮我吗????

I want to know the difference in terms of time delay the X is assigned values, can anybody help me out????

推荐答案

我可以帮助您解决问题，而无需为您做任何工作.

I can help you figure it out without doing your work for you.

阻塞赋值意味着下一个语句被阻塞，直到对变量的赋值完成.非阻塞赋值意味着对变量的赋值是在未来进行的，但下一条语句执行不会被阻塞.

A blocking assignment means the next statement is blocked until the assignment to the variable completes. A non-blocking assignment means the assignment to the variable is schedule in the future, but next statement executes without being blocked.

假设 block1 和 block2 是 begin/end 块，它们都从时间 0 开始，block1 将到达它的 end 在时间 550 和 block2 将在时间 1200 到达它的 end.

Assuming block1 and block2 are begin/end blocks that both start at time 0, block1 would reach its end at time 550 and block2 would reach its end at time 1200.

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