I have looked into the Application Binary Interface document and
found the following:
39.12 Function Calling Conventions
[...]
39.12.2 Return Value
long and ulong are returned in EDX,EAX, where EDX gets the
most significant half.
Is this really true? Or is this only for 32bit systems?
Because, I see the return value of ulong in RAX. I'm also not
sure if the convention for the input parameters has changed. For
a function with three ulong parameters I get the parameters in
RDI, RSI and RDX respectively.
Where can I find the correct and current documentation for 64bit
systems?
