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Hi all,
I am having problems with Synopsys Design Compiler (version 2007-03-sp1) and VHDL fixed-point library. I have mapped to lib ieee_proposed the files fixed_float_types_c.vhdl and fixed_pkg_c.vhdl taken from the archive "Synopsys.zip" on the "VHDL-2008 Support Library web page".
I am getting error when I analyze the file fixed_pkg_c.vhdl with Design Compiler:
It seems that Synopsys does not have the overload of the function Is_X for handling the type "std_logic_vector".
I have taken a look at the sources of std_logic_1164.vhd in synopsys’ library. I have noticed that there is a meta-comment “synthesis off” just before the definition of the function Is_x and another meta-comment “synthesis on” just after the end of the definition.
Any help to this problem would be appreciated. :smile:
Thanks.
Have a nice day.
I am having problems with Synopsys Design Compiler (version 2007-03-sp1) and VHDL fixed-point library. I have mapped to lib ieee_proposed the files fixed_float_types_c.vhdl and fixed_pkg_c.vhdl taken from the archive "Synopsys.zip" on the "VHDL-2008 Support Library web page".
I am getting error when I analyze the file fixed_pkg_c.vhdl with Design Compiler:
Code:
--------------------
-- Compiling Source File xxxxxxxxxxx/fixed_pkg_c.vhdl
Compiling Package Declaration FIXED_PKG
Compiling Package Body FIXED_PKG
-------------------
1787: return Is_X (STD_LOGIC_VECTOR (s));
^^^^
[Error] Several subprograms named IS_X exist, but no-one matches
-------------------
1792: return Is_X (STD_LOGIC_VECTOR (s));
^^^^
[Error] Several subprograms named IS_X exist, but no-one matches
-------------------
4521: presult := presult mod (2.0**(left_index+1)); -- wrap
^^^
[Error] Expression error: no corresponding "MOD" operator defined for operand types
-------------------
4576: presult := abs(arg) mod (2.0**(left_index+1)); -- wrap
^^^
[Error] Expression error: no corresponding "MOD" operator defined for operand types
-------------------
5171: return Is_X (argslv);
^^^^
[Error] Several subprograms named IS_X exist, but no-one matches
-------------------
5180: return Is_X (argslv);
^^^^
[Error] Several subprograms named IS_X exist, but no-one matches
-------------------
8394:
^
[Failure] End of compilation: error(s) in design unit BODY/FIXED_PKGI have taken a look at the sources of std_logic_1164.vhd in synopsys’ library. I have noticed that there is a meta-comment “synthesis off” just before the definition of the function Is_x and another meta-comment “synthesis on” just after the end of the definition.
Any help to this problem would be appreciated. :smile:
Thanks.
Have a nice day.