Hi all, I want to call a C function (for example: func1() ) from my old assembly code. The problem is that if func1() calls another C function( func2() ), what will happen? How does the compiler pass parameters to the second function? If it also passes through R1-R7, does it destroy the parameters of func1()? Thanks for reading this topic.
"I confuse that if the first C function calls another C function" What happens inside the function is entirely irrelevant - See my original post. You just need to see the function as a "black box" - it has a defined interface, and what actually goes on inside the box is of no concern.