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nazar-pc/p448_bias-simd.c

Created August 15, 2017 13:38
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SIMD version of p448_bias
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p448_bias-simd.c
void
p448_bias (
p448_t *a,
int amt
) {
uint32_t co1 = ((1ull<<28)-1)*amt, co2 = co1-amt;
uint32x4_t lo = {co1,co1,co1,co1}, hi = {co2,co1,co1,co1};
uint32x4_t *aa = (uint32x4_t*) a;
aa[0] += lo;
aa[1] += lo;
aa[2] += hi;
aa[3] += lo;
}
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