Mercurial > crc32
diff crc32c.c @ 3:6483683ac857 default tip
*: add profiling code too; expand x86 to use all eight XMM registers
basically ported verbatim from the assembly
| author | Paper <paper@tflc.us> |
|---|---|
| date | Mon, 09 Feb 2026 21:30:30 -0500 |
| parents | 422835bc1aca |
| children |
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--- a/crc32c.c Mon Feb 09 01:21:00 2026 -0500 +++ b/crc32c.c Mon Feb 09 21:30:30 2026 -0500 @@ -2,10 +2,8 @@ uint32_t crc32c_r(uint32_t crc, const unsigned char *message, size_t sz) { - size_t i; - - for (i = 0; i < sz; i++) - crc = (crc >> 8) ^ crc32_tab[(crc ^ message[i]) & 0xFF]; + while (sz--) + crc = (crc >> 8) ^ crc32_tab[(crc ^ *message++) & 0xFF]; return crc; }