Hello. I have a question: How does GCC x64 put parametrs of the function on C language in stack or registers. In x32 architecture it was simple. all parametrs of function was put in stack . But in x64 gcc puts some parametrs in %rdi, %rsi, %r8d, %r9d registers, and some parametrs in stack. How does it work generally? Best regards, Saidgani Musaev.