SystemVerilog 中有 2 种类型的阵列:packed(打包)和unpacked(解包)。 packed阵列用于表示在变量名称之前声明的维度。 bit [3:0] data; // Packed array or vector logic queue [9:0]; // Unpacked array packed阵列必然呈现为一组连续的位。这类阵列可由单位数据类型(如bit和logic)与其它递归打包阵列组成。
Verilog 具有 reg 和 wire 数据类型,用于描述硬件行为。鉴于硬件验证日趋复杂且要求日趋严苛,Verilog 中的数据类型在开发有效的测试激励文件和测试用例时难免捉襟见肘。因此,SystemVerilog 在 Verilog 基础上进一步扩展,添加了更多类似 C 语言的数据类型来改善封装和紧凑性。 单击此处回顾 Verilog 数据类型 下图所示是一...
SystemVerilog Unpacked Arrays Unpacked Arrays用于引用在变量名称之后声明的维度。 Unpacked Arrays可以是固定大小的数组、动态数组、关联数组、队列。 Single Dimensional Unpacked Array moduletb;bytestack [8];// depth = 8, 1 byte wide variableinitialbegin// Assign random values to each slot of the stackfo...
for(inti =0; i <$size(array); i++)begin// Statements inside the for loopend Example #2: Multidimensional Arrays module tb;intmd_array [5][2] ='{'{1,2},'{3,4}, '{5,6},'{7,8}, '{9,10}}; initial beginforeach(md_array[i])foreach(md_array[i][j]) $display ("md_a...
SystemVerilog 指的是 Accellera 对 Verilog-2001 标准所作的扩展。 在本参考手册中对 Verilog 语言的几个版本进行了如下的编号: Verilog 1.0 指的是 IEEE Std. 1364-1995 Verilog 硬件描述语言标准,也被称作 Verilog-1995; Verilog 2.0 指的是 IEEE Std. 1364-2001 Verilog 硬件描述语言标准,一般称之为 Veril...
或者new type [len1][len2]... import java.util.Arrays; public class Myarray { public ...
SystemVerilog constraints are powerful enough to be applied on multidimensional arrays as well. In the following example we have a multidimensional static array with a packed structure. Here we attempt to assign the pattern 0xF0F0F to each element of the multidimensional array. ...
SystemVerilog arrays are data structures that allow storage of many values in a single variable. A foreach loop is only used to iterate over such arrays and is the easiest and simplest way to do so. Syntax The foreach loop iterates through each index st
Well, there's a problem. Error (10773): Verilog HDL error at timer_control.v(5): declaring module ports or function arguments with unpacked array
Info (10008): Verilog HDL or VHDL information: EDA Netlist Writer cannot regroup multidimensional array "ram" into its bus I would expect Quartus to at least point why the synthesis attribute is ignored. Translate 0 Kudos Copy link Reply Kenny_Tan Moderator 12-23...