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Jul 06 2009

VHDL: Get needed bit count for a given number

Posted by: ben in FPGA, tags:

The following recursive VHDL function provides the needed bit count for a given integer number.

function len(x: integer) return integer is
begin
  if (x<=1) then return 1;
  else return 1+len(x/2);
  end if;
end len;

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