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don't update irq/dmarq unless they change (nw)

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smf- 2013-06-23 23:25:58 +00:00
parent bfdaa5393a
commit 08bfb782dc
1 changed files with 20 additions and 8 deletions
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28
src/emu/machine/ataintf.c
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@ -44,30 +44,42 @@ void ata_interface_device::set_dmarq(int state)
WRITE_LINE_MEMBER( ata_interface_device::irq0_write_line )
{
m_irq[0] = state;
if (m_irq[0] != state)
{
m_irq[0] = state;
set_irq(m_irq[0] == ASSERT_LINE || m_irq[1] == ASSERT_LINE);
set_irq(m_irq[0] == ASSERT_LINE || m_irq[1] == ASSERT_LINE);
}
}
WRITE_LINE_MEMBER( ata_interface_device::irq1_write_line )
{
m_irq[1] = state;
if (m_irq[1] != state)
{
m_irq[1] = state;
set_irq(m_irq[0] == ASSERT_LINE || m_irq[1] == ASSERT_LINE);
set_irq(m_irq[0] == ASSERT_LINE || m_irq[1] == ASSERT_LINE);
}
}
WRITE_LINE_MEMBER( ata_interface_device::dmarq0_write_line )
{
m_dmarq[0] = state;
if (m_dmarq[0] != state)
{
m_dmarq[0] = state;
set_dmarq(m_dmarq[0] == ASSERT_LINE || m_dmarq[1] == ASSERT_LINE);
set_dmarq(m_dmarq[0] == ASSERT_LINE || m_dmarq[1] == ASSERT_LINE);
}
}
WRITE_LINE_MEMBER( ata_interface_device::dmarq1_write_line )
{
m_dmarq[1] = state;
if (m_dmarq[1] != state)
{
m_dmarq[1] = state;
set_dmarq(m_dmarq[0] == ASSERT_LINE || m_dmarq[1] == ASSERT_LINE);
set_dmarq(m_dmarq[0] == ASSERT_LINE || m_dmarq[1] == ASSERT_LINE);
}
}