Re: preserving flags across inline assembler blocks


First thing, since you are using c++ you'll have to worry about name
mangling and probably have to use the extern "C" declaration. You should
google it for more info (or check the MSDN docs).

You'll also have to consider calling conventions (_stdcall, _cdecl) and
decide who will pop argements off the stack.

Finally, you'll have to preserve at leasy EBX, EBP, EDI and ESI. The MSDN
docs make this VERY clear. Search for "calling conventions".

cheers,

snow.


"_Rob_" wrote:
> Does anyone know which flags need to be preserved across __asm blocks when
> using inline assembler in Visual C++? The MSDN documentation is unclear.
>
> I am guessing that you don't need to preserve the status flags but that
> the control flag and system flags do need to be preserved.
>
> Is this correct?
>
> Cheers,
>
> Rob
>


.

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