83 value_s.format = vpiStringVal; 84 vpi_get_value(arg_handle, &value_s); 85 s = value_s.value.str; 86 87 // use C's atoi() 88 i = atoi(s); 89 90 // write result to simulation as return value $atoi 91 value_s.format = vpiIntVal; 92 value_s.value.integer = i; 93 ...
82vpi_free_object(arg_iterator); 83value_s.format=vpiStringVal; 84vpi_get_value(arg_handle,&value_s); 85s=value_s.value.str; 86 87//use C's atoi() 88i=atoi(s); 89 90//write result to simulation as return value $atoi 91value_s.format=vpiIntVal; 92value_s.value.integer=i; ...
module StringToArray ( input wire [7:0] str, //假设字符串是一个8位无符号整数 output reg [7:0] arr //输出整数数组 ); integer i; always @(*) begin for (i = 0; i < 8; i = i + 1) begin case (str[i]) 8'h30: arr[i] = 8'h30 - 8'h30; // '0' 8'h31: arr[i]...
String Methods 还有几种方法可用于处理字符串,如下表所示: module sMethods; string s1 = "hello"; string s2 = "hello world"; string s4; string s5 = "GOODBYE"; byte x; integer s2len, s3len, i1, i2; initial begin #15; s2len = s2.len( ); $display("String Length s2 = %0d",s2l...
str.tolower() function string tolower(); 返回一个字符串,其中字符转换为小写 str.compare(s) function int compare (string s); 将字符串与 s 进行比较,就像 ANSI C strcmp 函数中的比较一样 str.icompare(s) function int icompare (string s); 将字符串与 s 进行比较,就像 ANSI C strcmp 函数中...
string s1 = "hello\0world"; // sets s1 to "helloworld" bit [11:0] b = 12'ha41; string s2 = string'(b); // sets s2 to 16'h0a41 //string=bit typedeflogic[15:0] r_t; r_t r; integeri =1; stringb =""; stringa = {"Hi", b}; ...
28、INTEGER RANGE 0 TO 255;7. 整数(INTEGER)类型说明实数类型也叫浮点数浮点数范围为:1.0E381.0E38实数类型仅能用在仿真器中,综合器不支持实数8. 实数(REAL)类型说明字符串类型也称字符矢量或字符串数组。例如,“A BOY.”,“10100011” 字符串必须使用双引号括起来综合器支持字符串类型例如:VARIABLE string_var...
system verilog string数组赋值 verilog中数组,原文地址内建数据类型逻辑(logic)类型双状态数据类型定宽数组数组的遍历数组的比较与复制使用数组位下标和数组下标合并数组动态数组队列关联数组链表数组的方法sum方法:数组求和product方法:数组求积min,max方法:最大值
格式:function integer fopen(string filename,string access_mode); filename -将要被操作的文件名 access_mode -文件被访问的模式(如下表所示) 如果文件打开成功,则函数将返回一个32位整数的文件描述符,如果打开失败,那么将返回整数0.返回的32位描述符根据access_mode的有无又分为“Fil...
Verilog HDL allows integer numbers to be specified as Sized or unsized numbers (Unsized size is 32 bits) In a radix of binary, octal, decimal, or hexadecimal Radix and hex digits (a,b,c,d,e,f) are case insensitive Spaces are allowed between the size, radix and value ...