// In 0-255 range, round and truncate.
bind(&in_bounds);
- round_w_d(temp_double_reg, input_reg);
+ cvt_w_d(temp_double_reg, input_reg);
mfc1(result_reg, temp_double_reg);
bind(&done);
}
// Rounding modes are not yet supported.
ASSERT((FCSR_ & 3) == 0);
// In rounding mode 0 it should behave like ROUND.
- case ROUND_W_D: // Round double to word.
+ case ROUND_W_D: // Round double to word (round half to even).
{
- double rounded = fs > 0 ? floor(fs + 0.5) : ceil(fs - 0.5);
+ double rounded = floor(fs + 0.5);
int32_t result = static_cast<int32_t>(rounded);
+ if ((result & 1) != 0 && result - fs == 0.5) {
+ // If the number is halfway between two integers,
+ // round to the even one.
+ result--;
+ }
set_fpu_register(fd_reg, result);
if (set_fcsr_round_error(fs, rounded)) {
set_fpu_register(fd_reg, kFPUInvalidResult);