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metaprogrammer's avatar
metaprogrammer
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7 years ago

Could not find a way to report a Quartus bug

It appears that Verilog preprocessor in Quartus is not quite standard-conformant, the usual string concatenation trick does not work. For example, the following will fail: `define PREFIX . `define...
metaprogrammer's avatar
metaprogrammer
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7 years ago

Sorry, I forgot to include STR definition. Assume you have a file 'defines.v', can be empty, does not matter, and a file 'main.v' with the following:

`define STR(a) `"a`" 
`define PREFIX .
`define IPATH(a) `include `STR(`PREFIX/a)
 
`IPATH(defines.v)

Then, Quartus II will display two errors for the line 5:

Error (10108): Verilog HDL Compiler Directive error at main.v(5): missing Compiler Directive
Error (10096): Verilog HDL Compiler Directive error at main.v(5): incorrect use of predefined text macro "include" -- expected macro field ""filename""