Takes two signed integers and returns the least positive of the two, or
in_A if equal. For example:
Bring in the function at the start of the body of your module like so:
`include "min_function.vh"
Pass the function a value which, at elaboration time, is either a constant or an expression which evaluates to a constant. Then use that value as an integer for a localparam, genvar, etc...
This function is handy when you have words of different parameterized widths and you want to scale then all to the width of the smallest word (see: Width Adjuster).
Since this is an included file, it must be idempotent. (defined only once globally)
`ifndef MIN_FUNCTION
`define MIN_FUNCTION
function integer min;
input integer in_A;
input integer in_B;
begin
if (in_A <= in_B) begin
min = in_A;
end else begin
min = in_B;
end
end
endfunction
`endif