summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorGravatarGravatar R. Belmont <rb6502@users.noreply.github.com>2013-02-11 04:34:27 +0000
committerGravatarGravatar R. Belmont <rb6502@users.noreply.github.com>2013-02-11 04:34:27 +0000
commita5046e1a7ee676f40f6c3e31f093f499a8f4c4c1 (patch) (github)
treedbb29b0789173b6ac6862c46b94344bfbc367e21
parentf20a12a3daef28a5ae449f418318b85359c179b9 (diff)
downloadmame-a5046e1a7ee676f40f6c3e31f093f499a8f4c4c1.tar.bz2
mame-a5046e1a7ee676f40f6c3e31f093f499a8f4c4c1.zip
(MESS) Some Super Serial Card cleanup for the new 6551 (nw)
-rw-r--r--src/mess/machine/a2ssc.c26
-rw-r--r--src/mess/machine/a2ssc.h4
2 files changed, 27 insertions, 3 deletions
diff --git a/src/mess/machine/a2ssc.c b/src/mess/machine/a2ssc.c
index e9c93b92f06..9104e3c549e 100644
--- a/src/mess/machine/a2ssc.c
+++ b/src/mess/machine/a2ssc.c
@@ -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();
+ }
+ }
+}
+
diff --git a/src/mess/machine/a2ssc.h b/src/mess/machine/a2ssc.h
index 2ff165fde0d..b2491da10de 100644
--- a/src/mess/machine/a2ssc.h
+++ b/src/mess/machine/a2ssc.h
@@ -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();