[avr-gcc-list] Volatile "Word" registers

[James Dabbs]

I saw this thread maybe a while back, but can't find references.. Is it
"safe" in GCC to access 16-bit timer1 registers (OCR1A, etc.) as word-wide
variables, or explicitly divide the operation into bytes.  I'm not worried
about splitting accesses across an interrupt, etc. (this has to be managed
either way), but I am worried about the compiler accessing the halves in
proper order.  Looking at code, it *seems* to in the cases I see, but is
this just happenstance or a feature of AVR-GCC?

Thanks.