systemverilog 同一个function被多个地方同时调用

cy_00521

我函数里面对队列进行了操作，然后函数被多个地方同时调用，这个队列应该如何处理？如何让调用这个函数的多个地方各自拥有一个队列？

当前这个队列被多个地方同时调用时混乱了。

chensong0007

回复 1# cy_00521

我记得有个automatic的关键字，你试着让它声明下函数里的变量看看。

zixin1hao

回复 2# chensong0007


   是的：
Variables are static by default.


Unless declared in a dynamic context—within a class or an automatic task—all variables in SystemVerilog are static by default. Static variables are not really an unspecified behavior in System-Verilog but can be a source of unexpected behavior. A single copy exists for a static variable. It is created and initialized at the beginning of the simulation and is reused by all threads referencing that variable. A variable in a dynamic scope or explicitly declared as automatic is created and initialized every time a thread enters the scope in which the dynamic variable is declared.