Help needed on inline assembly

[Jarrett Billingsley]

"Jarrett Billingsley" <kb3ctd2 at yahoo.com> wrote in message 
news:fnq21n$mvk$1 at digitalmars.com...

> Another way to get an aligned allocation is to use a struct with the 
> float[4] in it.
>
> struct vec
> {
>    float[4] array;
> }
>
> void main()
> {
>    vec* v = new vec;
>
>    // ptr will get you the pointer to the 0th element too
>    float* a = v.array.ptr;
>
>    asm
>    {
>        mov EAX, a;
>        movaps XMM1, [EAX];
>    }
> }
>
> This also doesn't rely on any standard library stuff.

A third way is to wrap the second way in a function, allowing you to 
allocate statically-sized arrays directly:

T* alloc(T)()
{
    struct S
    {
        T t;
    }

    return &(new S).t;
}

void main()
{
    float[4]* array = alloc!(float[4]);
    float* a = array.ptr;

    asm
    {
        mov EAX, a;
        movaps XMM1, [EAX];
    }
}