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Diffstat (limited to 'src/mame/drivers/sdk85.cpp')
-rw-r--r--src/mame/drivers/sdk85.cpp22
1 files changed, 14 insertions, 8 deletions
diff --git a/src/mame/drivers/sdk85.cpp b/src/mame/drivers/sdk85.cpp
index 93c9352a26d..8a7b7be6330 100644
--- a/src/mame/drivers/sdk85.cpp
+++ b/src/mame/drivers/sdk85.cpp
@@ -82,12 +82,12 @@ private:
void digit_w(u8 data);
u8 kbd_r();
- void sdk85_io(address_map &map);
- void sdk85_mem(address_map &map);
+ void io_map(address_map &map);
+ void mem_map(address_map &map);
u8 m_digit;
virtual void machine_reset() override;
- virtual void machine_start() override { m_digits.resolve(); }
+ virtual void machine_start() override;
required_device<i8085a_cpu_device> m_maincpu;
required_device<i8279_device> m_kdc;
@@ -106,6 +106,12 @@ void sdk85_state::machine_reset()
m_maincpu->pulse_input_line(INPUT_LINE_RESET, attotime::zero);
}
+void sdk85_state::machine_start()
+{
+ m_digits.resolve();
+ save_item(NAME(m_digit));
+}
+
WRITE_LINE_MEMBER(sdk85_state::reset_w)
{
m_maincpu->set_input_line(INPUT_LINE_RESET, state ? CLEAR_LINE : ASSERT_LINE);
@@ -133,7 +139,7 @@ READ_LINE_MEMBER(sdk85_state::sid_r)
return m_tty->rxd_r();
}
-void sdk85_state::sdk85_mem(address_map &map)
+void sdk85_state::mem_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x07ff).r(m_romio, FUNC(i8355_device::memory_r));
@@ -144,7 +150,7 @@ void sdk85_state::sdk85_mem(address_map &map)
map(0x2800, 0x28ff).mirror(0x0700).rw(m_expramio, FUNC(i8155_device::memory_r), FUNC(i8155_device::memory_w));
}
-void sdk85_state::sdk85_io(address_map &map)
+void sdk85_state::io_map(address_map &map)
{
map.unmap_value_high();
map(0x00, 0x03).mirror(0x04).rw(m_romio, FUNC(i8355_device::io_r), FUNC(i8355_device::io_w));
@@ -220,8 +226,8 @@ void sdk85_state::sdk85(machine_config &config)
{
/* basic machine hardware */
I8085A(config, m_maincpu, 6.144_MHz_XTAL);
- m_maincpu->set_addrmap(AS_PROGRAM, &sdk85_state::sdk85_mem);
- m_maincpu->set_addrmap(AS_IO, &sdk85_state::sdk85_io);
+ m_maincpu->set_addrmap(AS_PROGRAM, &sdk85_state::mem_map);
+ m_maincpu->set_addrmap(AS_IO, &sdk85_state::io_map);
m_maincpu->in_sid_func().set(FUNC(sdk85_state::sid_r));
m_maincpu->out_sod_func().set(m_tty, FUNC(rs232_port_device::write_txd)).invert();
@@ -264,4 +270,4 @@ ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-COMP( 1977, sdk85, 0, 0, sdk85, sdk85, sdk85_state, empty_init, "Intel", "MCS-85 System Design Kit", MACHINE_NO_SOUND_HW)
+COMP( 1977, sdk85, 0, 0, sdk85, sdk85, sdk85_state, empty_init, "Intel", "MCS-85 System Design Kit", MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )