This is an example of the difference in calling conventions on Windows/Linux, and on x86/x64.

The primary calling conventions that are seen are:

• cdecl, the most popular. The callee is responsible for stack cleanup.
• stdcall, used for all of the Windows API. The caller is responsible for stack cleanup.
• fastcall, a method of calling used on Windows.
• 64-bit call (unknown), used for calling all 64-bit functions on Windows?

Run make to cross-compile all demo binaries to mess around with.