Verilog 用关键字 automatic 来对函数进行说明,此类函数在调用时是可以自动分配新的内存空间的,也可以理解为是可递归的。因此,automatic 函数中声明的局部变量不能通过层次命名进行访问,但是 automatic 函数本身可以通过层次名进行调用。于是,我们在函数声明时加上automatic: function automatic int
factorial 迭代调用。递归阶乘。 function automatic integer factorial; input [31:0] operand; integer i; if (operand >= 2) factorial = factorial (operand - 1) * operand; else factorial = 1; endfunction // test the function integer result; integer n; initial begin for (n = 0; n <= 7;...
因此,automatic函数中声明的局部变量不能通过层次命名进行访问,但是 automatic 函数本身可以通过层次名进行调用。 module tryfact; //函数定义--- function automatic integer factorial; input [3:0] operand; //4*8 = 32bit begin if(operand >= 2) factorial = operand * factorial(operand - 1); else fac...
因此,automatic 函数中声明的局部变量不能通过层次命名进行访问,但是 automatic 函数本身可以通过层次名进行调用。 下面用 automatic 函数,实现阶乘计算: 实例 wire [31:0] results3 = factorial(4); function automatic integer factorial ; input integer data ; integer i ; begin factorial = (data>=2)? data...
wire[31:0] results3 = factorial(4);functionautomaticintegerfactorial ;inputintegerdata ;integeri ;beginfactorial= (data>=2)? data * factorial(data-1) :1;endendfunction//factorial 下面是加关键字 automatic 和不加关键字 automatic 的仿真结果。
functionautomaticintegerfactorial; input[31:0]oper; integeri; begin if(oper >=2) factorial = factorial(oper-1) *oper; else factorial =1; end endfunction integerresult; initial begin result = factorial(4); $display("Factoial of 4 is %0d",result); ...
task print_sum(integer a[],input start=0); automaticintsum=0; for(intj=start;j
factorial(1.4)Error using factorial (line 20) N must be an array of real non-negative integers. If you want an specific message you can put it into a try catch 테마복사 function [ out ] = factorialeq( integer ) try out=factorial(intege...
INTEGER RES IF (N.EQ.0) THEN RES=1 ELSE RES=N*FACTORIAL(N-1) END IF END FUNCTION FACTORIAL PROGRAM P INTERFACE OPERATOR (.PERMUTATION.) ELEMENTAL FUNCTION MYPERMUTATION(ARR1,ARR2) INTEGER :: MYPERMUTATION INTEGER, INTENT(IN) :: ARR1,ARR2 ...
An integer vector — If the function has one output out1, OutputSize specifies the size of out1. If the function has multiple outputs out1,…,outN, OutputSize specifies that all outputs have the same size. A cell array of integer vectors — The size of output outj is the jth element...