Call C function in assembly (PIC 18)

[atomlcp]

assembler call function

I am beginner of programming PIC 18 UC using C. Please tell me how to call a C function in my ASM file and how to link them up?

Anything I need to specify when I invoke the C function in the ASM file?

 

[artem]

call c function assembly

That call has to be compiler specific if there is no accepted calling convensions for all compilers .

What you have to do is to consult your compiler manual for c calling conventions .

 

[whorse]

You'd better avoid calling C function in ASM file, if need, only call the C function without input parameters, cause the input parameters are stored in registers or memory depending on the compiler. To call C function, it's usually call _func for func() routine, maybe you also should declare the function name in the asm file, depend on your specific compiler.

 

[hill]

What is your compiler?

 

[btbass]

Use the librarian to make library of your functions, then you can call them.