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More x64 assembler fun-facts–new assembler directives

The Oracle at Delphi – The Windows x64 ABI (Application Binary Interface) presents some new challenges for assembly programming that don’t exist for x86. A couple of the changes that must be taken into account can can be seen as very positive. First of all, there is now one and only one OS specified calling convention. We certainly could have devised our own calling convention like in x86 where it is a register-based convention, however since the system calling convention was already register based, that would have been an unnecessary complication. The other significant change is that the stack must always remain ...

Favorite? Off-Topic? Allen Bauer @ 2011-10-11 00:21