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cpu/dsp32: Simplify int24 operator logic

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This commit is contained in:
AJR 2022-10-29 22:03:55 -04:00
parent 16b6207d1a
commit 9e98def219
1 changed files with 2 additions and 5 deletions
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7
src/devices/cpu/dsp32/dsp32ops.hxx
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@ -2443,14 +2443,11 @@ void dsp32c_device::d5_int24(uint32_t op)
{
double val = dau_read_pi_double_1st(op >> 7, 0);
int zpi = (op >> 0) & 0x7f;
int32_t res;
if (!(DAUC & 0x10)) val = floor(val + 0.5);
else val = ceil(val - 0.5);
res = (int32_t)val;
if (res > 0x7fffff) res = 0x7fffff;
else if (res < -0x800000) res = -0x800000;
int32_t res = std::clamp<int32_t>(val, -0x800000, 0x7fffff);
if (zpi != 7)
dau_write_pi_4bytes(zpi, (int32_t)(res << 8) >> 8);
dau_write_pi_4bytes(zpi, res);
dau_set_val_noflags((op >> 21) & 3, dsp_to_double(res << 8));
}