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static inline uae_u32 do_byteswap_16_g(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;}
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#ifndef HAVE_OPTIMIZED_BYTESWAP_32
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static inline uae_u32 do_byteswap_32_g(uae_u32 v)
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{ return (((v >> 24) & 0xff) | ((v >> 8) & 0xff00) | ((v & 0xff) << 24) | ((v & 0xff00) << 8)); }