Constant Value overflow

[Altera_Forum]

I have the following Warning: 

Warning (10639): VHDL warning at FRAME_ROTATOR_NEW.vhd(391): constant value overflow   It's about  elsif main_cnt >= to_unsigned (74877906940 , 39) then   and i decleared main_cnt as    signal main_cnt : unsigned (38 downto 0) := (others => '0');   Where did i go wrong? Or is the warning caused somewhere else?    To make it easy for u 74877906940 decimal = 116F122FFC HEX = 37 bit

[Altera_Forum]

I am not sure but possibly VHDL has a limit on integer values (2^34 may be...)

[Altera_Forum]

I'm aware of the limit for integer. But does that count when i use it in this way ?  

 Aparly it does, cause is get the warning :). I'll try something.   elsif main_cnt >= "111" & x"FFFFFFF" then   That does the trick. Thx

[Altera_Forum]

In Quartus and most other VHDL tools, integer literals are limited to 32 bit, although the VHDL standard would allow a larger range. Bit string literals have no limitation, but unfortunately, the supported formats are only binary, octal and hexadecimal, not decimal.