Hi Over at RTEMS, we ran into a case where the C++ atomics may not be right for one of the lower level x86 models. We will investigate whether it can be made right but this has led to the discussion of dropping older models and setting a new minimum model. Right now, our base is a i386 w/FPU. The best rationale we have for selecting a new floor is GCC atomics support.
With that in mind, what's the lowest/oldest i386 CPU model we should consider as the new base model? Thanks. --joel