Overview
| Comment: | Optimize OF_BSWAP64.
If we have a native OF_BSWAP32, it is still faster to shift and use |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
2ff4ae177ddaa9b6241a9ba21cf44b44 |
| User & Date: | js on 2009-08-31 00:19:41 |
| Other Links: | manifest | tags |
Context
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2009-09-01
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| 11:32 | Rename -[length] to -[cStringLength] in OFString. check-in: 3ed599fe98 user: js tags: trunk | |
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2009-08-31
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| 00:19 | Optimize OF_BSWAP64. check-in: 2ff4ae177d user: js tags: trunk | |
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2009-08-30
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| 20:06 | Add some PowerPC assembly optimizations. check-in: 37e9b7c11c user: js tags: trunk | |
Changes
Modified src/OFMacros.h from [63162e95ce] to [830442e230].
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#if defined(OF_AMD64_ASM)
asm("bswap %0" : "=r"(i) : "r"(i));
#elif defined(OF_X86_ASM)
asm("bswap %%eax\n\t"
"bswap %%edx\n\t"
"xchgl %%eax, %%edx" : "=A"(i): "A"(i));
#else
| | < < < < < < < | 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 |
#if defined(OF_AMD64_ASM)
asm("bswap %0" : "=r"(i) : "r"(i));
#elif defined(OF_X86_ASM)
asm("bswap %%eax\n\t"
"bswap %%edx\n\t"
"xchgl %%eax, %%edx" : "=A"(i): "A"(i));
#else
i = (uint64_t)OF_BSWAP32(i & 0xFFFFFFFF) << 32 | OF_BSWAP32(i >> 32);
#endif
return i;
}
static OF_INLINE void
OF_BSWAP32_V(uint32_t *buf, size_t len)
{
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