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[GHDL] Solution to --> primary unit "std_logic_arith" not found in library "ieee"
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Christiano
Sep 13, 2013, 11:38:51 AM9/13/13
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If anyone has had this problem, just do this:
ghdl -a --ieee=synopsys x.vhd
ghdl -a --ieee=synopsys x.vhd
Bart Fox
Sep 15, 2013, 12:49:28 AM9/15/13
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> If anyone has had this problem, just do this:
> ghdl -a --ieee=synopsys x.vhd
I avoid the proprietary and obsolete std_logic_arith/std_logic_unsigned
> ghdl -a --ieee=synopsys x.vhd
everywhere.
I use the "official" ieee.numeric_std.all for arithmetic.
Don't mix the librarys. So unsigned and signed types are usable on ports
without headaches.
regards,
Bart Fox
elk...@gmail.com
Oct 28, 2015, 10:24:14 AM10/28/15
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On Friday, September 13, 2013 at 11:38:51 AM UTC-4, Christiano wrote:
> If anyone has had this problem, just do this:
> ghdl -a --ieee=synopsys x.vhd
Thanks, this helped me out with some source over which I have no control.
> If anyone has had this problem, just do this:
> ghdl -a --ieee=synopsys x.vhd
rickman
Oct 28, 2015, 12:33:44 PM10/28/15
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On 9/13/2013 11:38 AM, Christiano wrote:
> If anyone has had this problem, just do this:
> ghdl -a --ieee=synopsys x.vhd
Better yet, use numeric_std rather than std_logic_arith.
> If anyone has had this problem, just do this:
> ghdl -a --ieee=synopsys x.vhd
I did a little digging and found that because std_logic_arith was not a
standard, each vendor produced their own, different, version. That is
reason enough to not use it.
--
Rick
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