initial begin #1 doInit(4,5); #1 doInit(9,6); #1 $finish; end task doInit (input bit [3:0] count, delay); automatic reg [7:0] a; if (count > 5) begin $display ("@%g Returning from task", $time); return; end #(delay) $display ("@%g Value passed is %d", $time, c...
6. loop withfork-joinblock# 如果循环中包含fork-joinblock,结果有时可能会和预期不同。同理,我们可以把循环展开,来看看程序的运行过程,这里fork-joinblock包含fork-join、fork-join_any和fork-join_none,我们分别来看。 6.1 loop withfork-joinblock# `timescale1ns/1nsmoduletest;initialbegin// somethingfor(...
One application is to overwrite do_copy () & do_compare (): Pure Virtual Methods Only allowed in a virtual classand it must be overridden in the first derivative non-virtual class if it has not been overridden. If a derivative extended virtual class has overridden the pure method with an ...
(); // Updated due to shallow copy // Now do a deep copy $display("Testing deep copy"); b1.copy(b3) ; // Create an object that is a deep copy of b1 b3.print(); b3.i = 100; // i is changed in b3, but not in b1 b3.a.j = 500;// j is changes in b3, but not ...
uvm_field_automation:UVM_COPY .在使用copy功能时,b.copy(a),那么b必须实例化之后才可以使用copy功能否则会上报object没有分配的错误.2.copy没有句柄参数将b中的m_reg_addr修改为’...对m_new_reg例化,那么在reg_xaction中使用m_new_reg时,它为null;使用copy函数时同样复制为null值. 如果在new函数中对m...
fork-join_none和fork-join、fork-join_any的区别一样在于进程退出机制以及对于父进程的影响。 fork-join_none不会占用任何父进程的时间,即不会影响父进程。 基于这个特性,如果你希望启动一个并行的进程,而又不需要等待它结束就可以使用fork-join_none
这个过程中想到了软件自带的例子可能会有这方面的示例,于是到【D:\questasim_10.1b\examples\systemverilog\dpi】目录下找到了几个例子,之后在Questasim的命令行里do run.do运行了下给的例子,发现可以运行通过,没有报错,这说明,此时我的电脑中,使用DPI所需的东西肯定是全的,那么我的代码跑不过就一定是出在了运行...
(Qi60)Do we need to call super.new() when extending a class ? What happens if we dont call? (Qi61)Equivalent construct to |- 1? Ans:= (Qi62)What is the need to implement explicitly a copy() method inside a transaction , when we can simple assign one object to other ? (Qi63)...
virtualfunctionvoidBinary::copy(inputBinaryrhs); this.val1=val1; this.val2=val2; endfunction class classBinary; randbit[3:0]val1,val2; functionnew(inputbit[3:0]val1=0,val2=0); this.val1=val1; this.val2=val2; endfunction virtualfunctionvoidprint(); $display(val1=%0d,val2=%0...
586 Views I do not believe you need to do this in Verilog or SystemVerilog. You can reference a function before it has been defined. Translate 0 Kudos Copy link Reply Community support is provided Monday to Friday. Other contact methods are available here. Intel does not verify all solutio...