Whether we declare the array as scalar or vector, we can access each element bit by bit. For example, we can declare two arrays below.
reg scalar_array[0:9]; reg [0:9] vector_array; always @* begin scalar_array = 1'b1; vector_array = 1'b1; end
I would like to know if the difference exists between two declarations.
Also, when I declare the two-dimensional array like below, I could access the entire row using the indexing operator for the variable declared using a below syntax.
reg[X:X] var_name [Y:Y];
However, I couldn't access the entire row when I declare the array using the below syntax.
reg var_name [X:X][Y:Y];
I would like to know how this concept can be synthesized on the hardware, and if they are both synthesizable, what is the difference between them.
reg [0:9] vector_array_2d [0:15]; reg scalar_array_2d[0:9][0:15]; always @* begin vector_array_2d = 'd1; scalar_array_2d = 'd1; //raise the error!! end