Re: [ros-dev] MSVC

[Alex Ionescu]

Sorry, I meant pass it byval with a macro.

On 2009-12-30, at 12:49 PM, Jose Catena wrote:

>   eax then.
>  A pointer to the pointer won't help, only make the problem worse needing an
>  additional indirection.
>  AFIK, there is no way to tell the inline assembler how to do it correctly in
>  a single instruction, we need to have the pointer loaded in a register. A
>  fastcall will have the parameter in a register already, but won't be better
>  than an inline.
>  There is no point in saving a instruction here anyway, loading/saving the
>  gdtr is very rare.
>  But if you know a way to have a single instruction in an inline to work as
>  intended tell us how plz.
>  
>  Jose Catena
>  DIGIWAVES S.L.
>  
>  
>  -----Original Message-----
>  From: ros-dev-bounces(a)reactos.org [mailto:[e-mail]] On
>  Behalf Of Alex Ionescu
>  Sent: Wednesday, 30 December, 2009 18:08
>  To: ReactOS Development List
>  Subject: Re: [ros-dev] MSVC
>  
>  I recommend changing the convention such that Descriptor is a pointer to the
>  pointer -- this way the functions can remain one-liners and not introduce
>  register side-effects (especially since you're choosing ebx -- trashing a
>  nonvolatile).
>  
>  
>  
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Best regards,
Alex Ionescu