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synchronize cpus when maincpu accesses the chip - this fixes recent driftout sound breakage

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Michaël Banaan Ananas 2013-08-28 11:21:26 +00:00
parent 32932d2997
commit 4b7a6d41e6
1 changed files with 3 additions and 1 deletions
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4
src/mame/audio/taitosnd.c
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@ -98,7 +98,7 @@ void tc0140syt_device::device_reset()
void tc0140syt_device::update_nmi()
{
UINT32 nmi_pending = m_status & (TC0140SYT_PORT23_FULL | TC0140SYT_PORT01_FULL);
UINT32 state = nmi_pending && m_nmi_enabled ? ASSERT_LINE : CLEAR_LINE;
UINT32 state = (nmi_pending && m_nmi_enabled) ? ASSERT_LINE : CLEAR_LINE;
m_slavecpu->execute().set_input_line(INPUT_LINE_NMI, state);
}
@ -121,6 +121,7 @@ WRITE8_MEMBER( tc0140syt_device::tc0140syt_port_w )
WRITE8_MEMBER( tc0140syt_device::tc0140syt_comm_w )
{
machine().scheduler().synchronize(); // let slavecpu catch up before changing anything
data &= 0x0f; /* this is important, otherwise ballbros won't work */
switch (m_mainmode)
@ -163,6 +164,7 @@ WRITE8_MEMBER( tc0140syt_device::tc0140syt_comm_w )
READ8_MEMBER( tc0140syt_device::tc0140syt_comm_r )
{
machine().scheduler().synchronize(); // let slavecpu catch up before changing anything
UINT8 res = 0;
switch (m_mainmode)