Ajay, Isn't it based on the return expression. I think that std_logic_1164 and numeric_std return values with opposite ranges (to vs downto). Cheers, Jim -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Jim Lewis Director of Training mailto:Jim@SynthWorks.com SynthWorks Design Inc. http://www.SynthWorks.com 1-503-590-4787 Expert VHDL Training for Hardware Design and Verification ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.Received on Thu Feb 1 08:18:43 2007
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