23 lines
615 B
VHDL
23 lines
615 B
VHDL
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-- This package should cover all non-project specific maths functions that can be called
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-- Some of these are only suitable for use pre-synthesis, as they will not function properly
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-- during normal operation. These will be marked appropriately during creation
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library ieee;
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use ieee.std_logic_1164.all;
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use ieee.numeric_std.all;
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use ieee.math_real.all;
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package maths_pkg is
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function log_ceil(input : natural) return natural;
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end package;
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package body maths_pkg is
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function log_ceil(input : natural) return natural is
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begin
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return natural(ceil(log2(real(input))));
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end function;
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end package body;
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