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(MESS) Some Super Serial Card cleanup for the new 6551 (nw)

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This commit is contained in:
R. Belmont 2013-02-11 04:34:27 +00:00
parent f20a12a3da
commit a5046e1a7e
2 changed files with 27 additions and 3 deletions
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26
src/mess/machine/a2ssc.c
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@ -26,7 +26,7 @@ const device_type A2BUS_SSC = &device_creator<a2bus_ssc_device>;
MACHINE_CONFIG_FRAGMENT( ssc )
MCFG_MOS6551_ADD(SSC_ACIA_TAG, XTAL_1_8432MHz, NULL)
MCFG_MOS6551_ADD(SSC_ACIA_TAG, XTAL_1_8432MHz, DEVWRITELINE(DEVICE_SELF, a2bus_ssc_device, acia_irq_w))
MACHINE_CONFIG_END
ROM_START( ssc )
@ -120,6 +120,8 @@ const rom_entry *a2bus_ssc_device::device_rom_region() const
a2bus_ssc_device::a2bus_ssc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, A2BUS_SSC, "Apple Super Serial Card", tag, owner, clock),
device_a2bus_card_interface(mconfig, *this),
m_dsw1(*this, "DSW1"),
m_dsw2(*this, "DSW2"),
m_acia(*this, SSC_ACIA_TAG)
{
m_shortname = "a2ssc";
@ -128,6 +130,8 @@ a2bus_ssc_device::a2bus_ssc_device(const machine_config &mconfig, const char *ta
a2bus_ssc_device::a2bus_ssc_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, type, name, tag, owner, clock),
device_a2bus_card_interface(mconfig, *this),
m_dsw1(*this, "DSW1"),
m_dsw2(*this, "DSW2"),
m_acia(*this, SSC_ACIA_TAG)
{
m_shortname = "a2ssc";
@ -179,9 +183,9 @@ UINT8 a2bus_ssc_device::read_c0nx(address_space &space, UINT8 offset)
switch (offset)
{
case 1:
return device().ioport("DSW1")->read();
return m_dsw1->read();
case 2:
return device().ioport("DSW2")->read();
return m_dsw2->read();
case 8:
case 9:
@ -211,3 +215,19 @@ void a2bus_ssc_device::write_c0nx(address_space &space, UINT8 offset, UINT8 data
}
}
WRITE_LINE_MEMBER( a2bus_ssc_device::acia_irq_w )
{
if (!(m_dsw2->read() & 4))
{
if (state)
{
raise_slot_irq();
}
else
{
lower_slot_irq();
}
}
}

4
src/mess/machine/a2ssc.h
View File

@ -31,6 +31,10 @@ public:
virtual const rom_entry *device_rom_region() const;
virtual ioport_constructor device_input_ports() const;
required_ioport m_dsw1, m_dsw2;
DECLARE_WRITE_LINE_MEMBER( acia_irq_w );
protected:
virtual void device_start();
virtual void device_reset();