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x07: fix possible division by 0

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This commit is contained in:
hap 2016-01-21 20:02:35 +01:00
parent 31efbf92ec
commit ac9957ee8a
1 changed files with 2 additions and 3 deletions
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5
src/mame/drivers/x07.cpp
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@ -1186,17 +1186,16 @@ WRITE8_MEMBER( x07_state::x07_io_w )
m_cass_tick->reset();
}
#if(1)
if((data & 0x0e) == 0x0e)
{
UINT16 div = (m_regs_w[2] | m_regs_w[3] << 8) & 0x0fff;
m_beep->set_frequency((div == 0) ? 0 : 192000 / div);
m_beep->set_state(1);
m_beep->set_frequency(192000 / ((m_regs_w[2] | (m_regs_w[3] << 8)) & 0x0fff));
m_beep_stop->adjust(attotime::from_msec(m_ram->pointer()[0x450] * 0x20));
}
else
m_beep->set_state(0);
#endif
break;
case 0xf5: