Re: D ASM. Program fails

[userABCabc123 via Digitalmars-d-learn]

On Friday, 22 January 2016 at 20:54:46 UTC, Iakh wrote:
On Friday, 22 January 2016 at 17:27:35 UTC, userABCabc123 wrote:
[...]

Thanks. It works.
Buth shorter version too:

                asm
                {
                    naked;
                    push RBP;
                    mov RBP, RSP;
                    //sub RSP, 0x10;
                    //movdqa dword ptr[RBP-0x10], XMM0;
                    //movdqa XMM0, dword ptr[RBP-0x10];
                    pmovmskb EAX, XMM0;
                    mov RSP, RBP;
                    pop RBP;
                    ret;
                }

Looks like the SIMD param is passed by SIMD reg

Right I must be blind. So you can even remove the prelude and the 
prologue:

int pmovmskb2(byte16 v)
{
    asm
    {
        naked;
        pmovmskb EAX, XMM0;
        ret;
    }
}