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fix for riot chip, makes gameplan sound back (nw)

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This commit is contained in:
Miodrag Milanovic 2014-05-14 08:49:43 +00:00
parent 6e5a48b5d7
commit 48e9b7663b
2 changed files with 18 additions and 15 deletions
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31
src/emu/machine/6532riot.c
View File

@ -224,10 +224,7 @@ void riot6532_device::reg_w(UINT8 offset, UINT8 data)
else
{
port->m_out = data;
if (!BIT(offset, 1))
m_out_pa_cb((offs_t)0, data);
else
m_out_pb_cb((offs_t)0, data);
(*port->m_out_cb)((offs_t)0, data);
}
/* writes to port A need to update the PA7 state */
@ -307,17 +304,17 @@ UINT8 riot6532_device::reg_r(UINT8 offset, bool debugger_access)
else
{
/* call the input callback if it exists */
if (!BIT(offset, 1))
port->m_in = m_in_pa_cb(0);
else
port->m_in = m_in_pb_cb(0);
/* changes to port A need to update the PA7 state */
if (port == &m_port[0])
if (!(*port->m_in_cb).isnull())
{
if (!debugger_access)
port->m_in = (*port->m_in_cb)(0);
/* changes to port A need to update the PA7 state */
if (port == &m_port[0])
{
update_pa7_state();
if (!debugger_access)
{
update_pa7_state();
}
}
}
@ -419,10 +416,14 @@ riot6532_device::riot6532_device(const machine_config &mconfig, const char *tag,
void riot6532_device::device_start()
{
/* resolve callbacks */
m_in_pa_cb.resolve_safe(0);
m_in_pa_cb.resolve();
m_port[0].m_in_cb = &m_in_pa_cb;
m_out_pa_cb.resolve_safe();
m_in_pb_cb.resolve_safe(0);
m_port[0].m_out_cb = &m_out_pa_cb;
m_in_pb_cb.resolve();
m_port[1].m_in_cb = &m_in_pb_cb;
m_out_pb_cb.resolve_safe();
m_port[1].m_out_cb = &m_out_pb_cb;
m_irq_cb.resolve_safe();
/* allocate timers */

2
src/emu/machine/6532riot.h
View File

@ -75,6 +75,8 @@ protected:
UINT8 m_in;
UINT8 m_out;
UINT8 m_ddr;
devcb_read8 *m_in_cb;
devcb_write8 *m_out_cb;
};
// device-level overrides