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...
bit [2:0][3:0] a_unpacked_array[5]; Unpacked array elements are stored in memory using regular addressing, rather than being “packed” together in a single address. As shown above, the unpacked dimensions are declared after the variable name. The benefits of an unpacked array is that yo...
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...
And when I compiled it, I got an error: "Error (10053): Verilog HDL error at rom_sin.v(274): can't index object "MY_ROM" with zero packed or unpacked array dimensions" Please tell me why this error occurs and how to fix it. Thank you so much! Translate Tags: ...
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...