Packed Array / 压缩数组 packed array直译为『压缩数组』,比如在上例中所声明的B, Hex [LEN*4-1:0] B; 它虽然是包含了LEN*4个Hex元素,但事实上它等价于 logic [LEN*4-1:0][HEX-1:0] B; 你可以将其视为多维数组,但是当你在赋值时,如果使用了这种方式(假定B的声明使用了默认参数) B <= 16'h...
("array_assignment_in_FOREACH_method"); //automatic int i = 2; foreach (multi_unpack[i,j]) begin multi_unpack[i][j]=1; $display("multi_unpack[i,j]:%0d", multi_unpack[i][j]); end //4.混合数组,就是把packed和unpacked组合了起来,这样可以达到解决unpacked数组浪费内存空间的情况,但...
(unpack)非合并数组:将数组大小的定义放在等式右边 bit [7:0] bytes [4]; //4个字节,这个仍是合并数组,但是4个存储空间不连续,这是非合并数组 unpacked array会被认为是一个vector,packed array会被认为是一个scalar。 unpacked array的声明有两种方式: 1. int array [0:7][0:31]; array delaration usi...
// 1.packed array bit [7:0] packed_array = 8'h01; //一个元素叫packed_array bit [0:7] packed_array_1 = 8'h01; // 2-1.unpacked array,有了[数组修饰]之后,就会带来空间浪费 reg unpacked_array [7:0] = '{0,0,0,0,0,0,0,1}; //一个数组,分别为unpacked_array[0]-[7] reg ...
• Packed arrays • Operations on arrays • Array foreach loop • Special system functions for working with arrays • The $bits “sizeof” system function 5.1 Structures Design data often has logical groups of signals, such as all the control signals for a bus protocol, or all the ...
A 4-state integral type, including a packed array or packed structure. A fixed-size unpacked array or unpacked structure, where each element has a valid data type for a net. A lexical restriction applies to the use of the reg keyword in a net or port declaration. A net type keyword sha...
压缩(packed)数组,灵活访问连续比特流数据 1压缩数组的维度写在数组名的前面。 2bit、reg或wire类型的矢量变量通常被称为一维压缩数组。 3两个维度不同但总长度相等的数组a和b可以进行整体的赋值和比较。 4moduleautomatictest; 5initialbegin 6bit[31:0]a=32h89abcdef; ...
或者new type [len1][len2]... import java.util.Arrays; public class Myarray { public ...
Imported taskInterfaceIntegralLRMOpen arrayPacked array进程信号单一类型(Singular)SystemVerilog非压缩数组(Unpacked array)VerilogVPI附录K 参考书目 下载地址:http://static.wenjiangs.com/pdf/d37c5fe1-6cb229b5.zip 在线阅读:https://www.wenjiangs.com/docs/ieee-systemverilog 举报/反馈 发表评论 发表 ...
Structs, Unions, Packed & Unpacked Arrays - Packed & unpacked arrays, unions and structs allow greater abstraction and more concise coding. The new dynamic array types are used more in verification and have been moved to the UVM training course. Structs & assignment patterns Packed &...