On Monday, 11 June 2012 at 03:19:08 UTC, ixid wrote:
struct a
{ align(16) int[4] test = [1,2,3,4];
}
a test;
asm
{
movdqa XMM0, test ;
addps XMM0, XMM0 ;
movdpa test, XMM0 ;
}
This works fine with unaligned movdqu but throws an access
violation exception with movdqa. Why isn't align letting me do
an aligned read? How should I do an aligned read?
IIRC, you're supposed to be able to do something like align(16)
struct a, but it doesn't work when a is created on the stack.
That was the conclusion I found when trying to implement my own
vector type a year ago anyways.