diff options
Diffstat (limited to 'src/integer128.c')
| -rw-r--r-- | src/integer128.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/src/integer128.c b/src/integer128.c index ed05a1471..6cce03143 100644 --- a/src/integer128.c +++ b/src/integer128.c @@ -554,28 +554,28 @@ i128 i128_mul(i128 a, i128 b) { return res; } -void i128_divide(i128 num, i128 den, i128 *quo, i128 *rem) { +void i128_divide(i128 a, i128 b, i128 *quo, i128 *rem) { // TODO(bill): Which one is correct?! -#if 0 - i128 s = i128_shr(den, 127); - den = i128_sub(i128_xor(den, s), s); - s = i128_shr(num, 127); - den = i128_sub(i128_xor(num, s), s); +#if 1 + i128 s = i128_shr(b, 127); + b = i128_sub(i128_xor(b, s), s); + s = i128_shr(a, 127); + b = i128_sub(i128_xor(a, s), s); u128 n, r = {0}; - u128_divide(*cast(u128 *)&num, *cast(u128 *)&den, &n, &r); + u128_divide(*cast(u128 *)&a, *cast(u128 *)&b, &n, &r); i128 ni = *cast(i128 *)&n; i128 ri = *cast(i128 *)&r; - if (quo) *quo = i128_sub(i128_xor(ni, s), s); - if (rem) *rem = i128_sub(i128_xor(ri, s), s); + if (quo) *quo = i128_sub(i128_xor(ri, s), s); + if (rem) *rem = i128_sub(i128_xor(ni, s), s); #else - if (i128_eq(den, I128_ZERO)) { - if (quo) *quo = i128_from_u64(num.lo/den.lo); + if (i128_eq(b, I128_ZERO)) { + if (quo) *quo = i128_from_u64(a.lo/b.lo); if (rem) *rem = I128_ZERO; } else { - i128 n = num; - i128 d = den; + i128 n = a; + i128 d = b; i128 x = I128_ONE; i128 r = I128_ZERO; |