True. This doc covers more targets: http://agner.org./optimize/calling_conventions.pdf http://agner.org./optimize/calling_conventions.pdf However, if I'm going

True. This doc covers more targets: http://agner.org./optimize/calling_conventions.pdf http://agner.org./optimize/calling_conventions.pdf However, if I'm going to do low-level server work, I will not be doing it for 32-bit anymore. (There goes the 32-bit EC2 "small" machine, but so be it.)