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multiplication: fixed rest part

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Veit Heller
2017-07-31 13:03:18 -04:00
parent c3c04b558a
commit 8bf048b53d
2 changed files with 5 additions and 5 deletions
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silly.c
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@@ -63,8 +63,8 @@ silly silly_mul(silly x, silly y) {
z.sign = x.sign ^ y.sign;
uint64_t t0 = (x.before * y.after);
uint64_t t1 = (y.before * x.after);
uint64_t t0 = ((uint64_t) x.before) * y.after;
uint64_t t1 = ((uint64_t) y.before) * x.after;
z.before = x.before * y.before + (t0>>32) + (t1>>32);
uint32_t t0b = t0&0xffffffff;
uint32_t t1b = t1&0xffffffff;