1. 维度在标识符前面的部分称为packed array,在标识符后面的部分称为unpacked array,一维的pakced array也称为vector。 packed array packed array只能由单bit数据类型(bit,logic,reg)、enum以及其他packed array和packed structure组成。packed array保证在内存中一定是一段连续的bit unpacked array unpacked array的元...
问题描述: packed array和 unpacked array,是我在SV里学到的概念。 但是在quartus syn的时候,会报错。 解决方法: 1. packed array的概念 2.以sv格式添加... 查看原文 Systemverilog语言(3)---data types(1/2) ):表示位扩展信号,可以将每一位扩展为指定值;但是注意全1是不能扩展的,必须全部写出来,如上例...
Packed and UnPacked Arrays. Solved by kurts1 in post #2 When you declare an array, there are two types of dimensions: packed and unpacked. For example, imagine you have a variable that is 12 bits wide: bit[11:0] avar; Now, say that you want to treat these 12 bits as 3 groups ...
I managed to figure out that this was due to issue #846 (Parameters having an unpacked array type is a SystemVerilog feature that isn't supported yet), but iverilog could at least try to figure out what I was trying to do and tell me that that's not supported; the error message as...
I had the same issue, and suspect it is simply an unsupported SystemVerilog feature in Quartus II. I was able to make an unpacked structure work. Make the following change to line 140: <line 140> packed_struct array_of_structs [10:0]; I hope this works for...
localparam integer x_kernel [2:0][2:0] ={ {-1, 0, 1}, {-2, 0, 2}, {-1, 0, 1}}; wrong element type in unpacked array concatenation multiple packed dimensions are not allowed in this mode of verilog Upvote 0 Downvote Apr...