Is it possible to make compiled library?

[pickup]

Hello,

Is it possible to create compiled library? For example mikroC PRO has an option as "Build all files as library".

Regards.

[Ttelmah]

Yes, but don't.....

It is possible with the current compilers to generate a file, and link this.
Look at #EXPORT & #IMPORT, and particularly the relocatable option for this.
Historically this had problems, but does now work properly.

However CCS has a very efficient optimiser, and doing this, prevents quite a lot of the optimisation. Functions, and RAM space used in the module, which if it is compiled as source, with the main code, get optimised, do not get re-used in the same way if this is done.

I found on a project that compiled to 48Kwords (on a PIC33), took over 50Kwords if the main I/O functions were separately linked, and RAM use also grew by about 5%.

[pickup]

Aha Ttelmah!!!!! It's very good to get your answer . You are the guru of CCS. And you also helped me before. Thanks a lot.

Well, I did not understand how to make compiled library. But I shall read what you have mentioned and try to understand. An example or step by step guide would be very helpful. Just one simple function like

int add(int x, int y){
return(x + y);
}

Best regards.

[Ttelmah]

Look at the file mcu.zip in the examples directory. It contains a complete example of a set of routines, and loading these from the main code. Look in the manual at the linker section which tells you how to use this.

[pickup]

Thanks a lot guru

Very interesting, I am reading.... I did not know about this file - mcu.zip.

Take care.