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12 lines
248 B
Common Lisp
12 lines
248 B
Common Lisp
DECLSPEC void xts_mul2 (u32 *in, u32 *out)
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{
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const u32 c = in[3] >> 31;
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out[3] = (in[3] << 1) | (in[2] >> 31);
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out[2] = (in[2] << 1) | (in[1] >> 31);
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out[1] = (in[1] << 1) | (in[0] >> 31);
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out[0] = (in[0] << 1);
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out[0] ^= c * 0x87;
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}
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