cdecl
	align stack to 16 bytes.
	push arguments right to left.
	EAX, EDX, ECX free to use within called function.
	result is in EAX or ST0.
	caller cleans up.
stdcall
	right-to-left.
	EAX, EDX, ECX free to use within called function.
	result is in EAX.
	callee cleans up.
Borland_fastcall ("register")
	push arguments left to right, first three in EAX, EDX, ECX instead.
Borland_safecall
	Like stdcall, but for:
	function function_name(a: DWORD): DWORD; safecall;
	=> function function_name(a: DWORD; out Result: DWORD): HResult; stdcall;
Microsoft_thiscall
	like stdcall
	"this" passed in ECX
GCC_thiscall
	like cdecl
	as if there was a first argument "this".