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    SubjectRe: powerpc: introduce asm/swab.h

    > Ok, I committed it as a quick-fix. I'm not sure that is necessarily the
    > final one, but at least it is better than not compiling.
    > For example, it's kind of silly to use two __fswab32()'s with other
    > oddness if that one just falls back on __constant_swab32: maybe we'd want
    > to make sure that we'd use ___constant_swab64() in that case, and only do
    > the whole __SWAB_64_THRU_32__ if we really have a __arch_swab32()
    > function.
    > Of course, I do hope that anybody who #defines __SWAB_64_THRU_32__ already
    > has that __arch_swab32() thing, so it's likely fine.
    > I also wonder whether gcc generates better code with a union than with
    > that 64-bit math...

    Allright, it boots here on a powerbook, though IDE seems to be
    busticated (it gets lost interrupts trying to enable DMA, though it does
    fallback properly to PIO), but I think that's unrelated. I'll have a
    closer look tomorrow.


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