On Tue, Jan 31, 2012 at 10:51 AM, Kai Tietz <ktiet...@googlemail.com> wrote: > Ok, this variant keeps 16-byte alignment for thiscall-closure.
It doesn't. You have to account for the fact that caller pushed return address to the stack, so %esp was already decreased by 4 behind your back. To maintain alignment, you have to decrease %esp by $12, not by $16. Uros.
