Re: [avr-gcc-list] Efficient htons/swap16 or htonl/swap32 in place?

[Peter N Lewis]

At 8:29 +0800 17/8/01, Peter N Lewis wrote:

> Is there any way to convince the compiler to generate:
>
>         ldd r20,Y+1
>         ldd r21,Y+2
>         std Y+1,r21
>         std Y+2,r22

No takers for how to do this?  I expected there would be lots of 
efficiency nuts on this list! ;-)

Thanks for any ideas.
   Peter.
PS: Important safety tip - don't allocate 4 32-byte structs, 
including one on the stack when running on a 4433 with 128 bytes of 
RAM!
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