> if we do dll's
> how do we ...
> a) call to a function in another segment.
Using a stub in the current code segment... i.e.
call _printf
.
.
_printf: call libc_seg:libc_printf
ret
or
_printf: mov ax,printf_ordinal
call libc_seg:libc_entry
ret
> b) which stack does the dll use (if the calling processes then SS != DS
> which bcc appears not to like, if its own then dealing with reentrance may
> be lots of fun if two processes call the same dll)
The far call only changes CS. DS and SS remain the same, so DS == SS always.
Any static data needed by the "so" (unix for "dll") has to be located in
the caller's DS.
Eric
