diff options
| -rw-r--r-- | sys/src/libmp/port/mpdiv.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/src/libmp/port/mpdiv.c b/sys/src/libmp/port/mpdiv.c index 8ee1d2ae5..2c2ce73eb 100644 --- a/sys/src/libmp/port/mpdiv.c +++ b/sys/src/libmp/port/mpdiv.c @@ -24,12 +24,11 @@ mpdiv(mpint *dividend, mpint *divisor, mpint *quotient, mpint *remainder) if(divisor->top == 1 && (divisor->p[0] & divisor->p[0]-1) == 0){ vlong r = (vlong)dividend->sign * (dividend->p[0] & divisor->p[0]-1); if(quotient != nil){ - sign = divisor->sign; for(s = 0; ((divisor->p[0] >> s) & 1) == 0; s++) ; mpright(dividend, s, quotient); - if(sign < 0 && quotient->top != 0) - quotient->sign ^= -2; + if(divisor->sign < 0) + quotient->sign ^= (-mpmagcmp(quotient, mpzero) >> 31) << 1; } if(remainder != nil){ remainder->flags |= dividend->flags & MPtimesafe; |