Fixed Array Codes in SystemVerilog
1. Fixed-Size Array of Integers
module fixed_array1;
// Declare and initialize a fixed-size array of integers
int myArray [4] = '{10, 20, 30, 40};
initial begin
// Accessing and displaying elements of the array
foreach (myArray[i]) begin
$display("Element %0d: %0d", i, myArray[i]);
end
end
endmodule
Output:
Element 0: 10
Element 1: 20
Element 2: 30
Element 3: 40
V C S S i m u l a t i o n R e p o r t
2. Fixed-Size Array of Strings
module fixed_array2;
// Declare and initialize a fixed-size array of strings
string fruits [3] = {"Apple", "Orange", "Banana"};
initial begin
// Accessing and displaying elements of the array
foreach (fruits[i]) begin
$display("Fruit %0d: %s", i, fruits[i]);
end
end
endmodule
Output:
Fruit 0: Apple
Fruit 1: Orange
Fruit 2: Banana
V C S S i m u l a t i o n R e p o r t
3. Fixed-Size Array of Custom Structures
typedef struct {
logic [7:0] id;
string name;
} Person;
module fixed_array3;
// Declare and initialize a fixed-size array of custom structures
Person people [2] = '{'{8'h01, "Alice"}, '{8'h02, "Bob"}};
initial begin
// Accessing and displaying elements of the array
foreach (people[i]) begin
$display("Person %0d: ID=%h, Name=%s", i, people[i].id, people[i].name);
end
end
endmodule
Output:
Person 0: ID=01, Name=Alice
Person 1: ID=02, Name=Bob
V C S S i m u l a t i o n R e p o r t
4. Fixed-Size Array of 2D Integer Arrays
module fixed_array4;
// Declare and initialize a fixed-size array of 2D integer arrays
int matrix [2][3] = '{'{1, 2, 3}, '{4, 5, 6}};
initial begin
// Accessing and displaying elements of the array
for (int i = 0; i < 2; i++) begin
for (int j = 0; j < 3; j++) begin
$display("Element [%0d][%0d]: %0d", i, j, matrix[i][j]);
end
end
end
endmodule
Output:
Element [0][0]: 1
Element [0][1]: 2
Element [0][2]: 3
Element [1][0]: 4
Element [1][1]: 5
Element [1][2]: 6
V C S S i m u l a t i o n R e p o r t
5. Fixed-Size Array of Packed Arrays
module fixed_array5;
// Declare and initialize a fixed-size array of packed arrays
logic [7:0] data [4] = '{8'h12, 8'h34, 8'h56, 8'h78};
initial begin
// Accessing and displaying elements of the array
foreach (data[i]) begin
$display("Data[%0d]: %h", i, data[i]);
end
end
endmodule
Output:
Data[0]: 12
Data[1]: 34
Data[2]: 56
Data[3]: 78
V C S S i m u l a t i o n R e p o r t
6. Fixed-Size Array of Enums
typedef enum logic [1:0] {RED, GREEN, BLUE} Color;
module fixed_array6;
// Declare and initialize a fixed-size array of enums
Color colors [3] = '{RED, GREEN, BLUE};
initial begin
// Accessing and displaying elements of the array
foreach (colors[i]) begin
$display("Color %0d: %s", i, colors[i]);
end
end
endmodule
Output:
Color 0: RED
Color 1: GREEN
Color 2: BLUE
V C S S i m u l a t i o n R e p o r t