2013/5/21 dw <limegreenso...@yahoo.com>:
>
>> the idea to put all intrinsics within one new header, I don't like
>> either.
> Sorry, my fault. I wasn't clear. This isn't what I was proposing.
>
> I'm suggesting intrnmac.h only contains the macro definitions. So we
> would move this code from winnt.h (which is where it is now) to intrnmac.h:
>
> #define __buildstos(x, y) void x(y *Dest, y Data, size_t Count) \
> { \
> __asm__ __volatile__ ("rep stos%z0" \
> : /* no outputs */ \
> : "D" (Dest), "c" (Count), "a" (Data) \
> : "memory"); \
> }
>
> Then, in winnt.h we would put (or rather "leave" since it is already there):
>
> __CRT_INLINE __buildstos(__stosb, BYTE)
> __CRT_INLINE __buildstos(__stosw, WORD)
> __CRT_INLINE __buildstos(__stosd, DWORD)
> __CRT_INLINE __buildstos(__stosq, DWORD64)
>
> In __stosb.c, the entire contents of the file would be:
>
> #include <intrin.h>
> #include <intrnmac.h>
>
> __buildstos(__stosb, unsigned char)
>
> Done this way, the guts of the code is in one place (the macro in
> intrnmac.h) and a single modification affects both. At the same time,
> the code still exists right where it did before I started (winnt.h &
> __stosb.c). It seems like this gets us the best of both worlds.
>
>> So my 5 cent vote for maintaining header plus implementation-file in
>> crt as separate implementations.
> I respect your vision of how this should be laid out. I just wanted to
> make sure I was clear about what I was proposing. If this is still the
> way you prefer, that's what I'll do.
>
> dw
I see the advantage of your suggestion. I am fine by an intrin-mac
header as you suggested. I recomment to put it into sub-directory
psdk_inc/ in our platform-headers.
Kai
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