enum、struct也有packed和unpacked之分。编写design时,不能将unpacked类型的数据赋值给packed类型的数据,反之亦然。 packed类型的数据其元素(成员)也必须都是recursively packed的,unpacked数据可以包含packed或者unpacked,其中packed的数据内部的元素(成员)同样必须是recursively packed的...
unpacked数组与packed数组在物理存储上的关键区别在于，unpacked数组在物理上不能保证连续存储，而packed数组则能确保连续性。这意味着unpacked数组中的元素可能分布在不同的存储单元中，而非连续。例如，在一个unpacked数组中，元素uP0到uP3不会在物理上连续存放。另一方面，packed数组被视为一个整体，类似于...
Packed and UnPacked Arrays. Difference between logic [7:0][3:0] ARRAY; and logic ARRAY [7:0][3:0]; in system verilog kurts1March 3, 2008, 8:36pm2 When you declare an array, there are two types of dimensions: packed and unpacked. For example, imagine you have a variable that is ...
I found when trying to declare a parameter as a packed array (note that issue Support multidimensional parameters #846 refers to unpacked arrays). A suggestion/request to improve the error message displayed on unsupported features. I was trying to simulate this code (well, not this code exactly...
I face the same issue in Quartus 9.1. The suggested solution is not always acceptable: One problem with unpacked arrays is that you can't use them to interface between two modules. Is there any intention to support a packed arrays of packed struct in future Quartus ...