summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/sc2.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/sc2.cpp')
-rw-r--r--src/mame/drivers/sc2.cpp248
1 files changed, 116 insertions, 132 deletions
diff --git a/src/mame/drivers/sc2.cpp b/src/mame/drivers/sc2.cpp
index 32c1131b695..4d265c0a336 100644
--- a/src/mame/drivers/sc2.cpp
+++ b/src/mame/drivers/sc2.cpp
@@ -2,124 +2,74 @@
// copyright-holders:Sandro Ronco
/***************************************************************************
- Schachcomputer SC2
-
- Note:
- The HW is very similar to Fidelity Chess Challenger series
-
- 12/05/2009 Skeleton driver.
+ Schachcomputer SC 2
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
-#include "sound/beep.h"
#include "machine/z80pio.h"
+#include "sound/dac.h"
+#include "sound/volt_reg.h"
#include "speaker.h"
#include "sc2.lh"
+
+namespace {
+
class sc2_state : public driver_device
{
public:
- sc2_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_beep(*this, "beeper"),
+ sc2_state(const machine_config &mconfig, device_type type, const char *tag) :
+ driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
+ m_pio(*this, "z80pio"),
+ m_dac(*this, "dac"),
+ m_keypad(*this, "LINE%u", 1),
m_digits(*this, "digit%u", 0U),
m_leds(*this, "led%u", 0U)
{ }
void sc2(machine_config &config);
-private:
- DECLARE_READ8_MEMBER(pio_port_a_r);
- DECLARE_READ8_MEMBER(pio_port_b_r);
- DECLARE_WRITE8_MEMBER(pio_port_a_w);
- DECLARE_WRITE8_MEMBER(pio_port_b_w);
- DECLARE_READ8_MEMBER(sc2_beep);
- uint8_t m_kp_matrix;
- uint8_t m_led_7seg_data[4];
- uint8_t m_led_selected;
- uint8_t m_digit_data;
- uint8_t m_beep_state;
- void sc2_update_display();
+protected:
virtual void machine_start() override;
virtual void machine_reset() override;
- void sc2_io(address_map &map);
- void sc2_mem(address_map &map);
- required_device<beep_device> m_beep;
+private:
required_device<cpu_device> m_maincpu;
+ required_device<z80pio_device> m_pio;
+ required_device<dac_bit_interface> m_dac;
+ required_ioport_array<4> m_keypad;
+
output_finder<4> m_digits;
output_finder<2> m_leds;
-};
-
-READ8_MEMBER( sc2_state::sc2_beep )
-{
- //if (!machine().side_effects_disabled())
- {
- m_beep_state = ~m_beep_state;
-
- m_beep->set_state(m_beep_state);
- }
-
- return 0xff;
-}
-void sc2_state::sc2_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x0fff).rom();
- map(0x1000, 0x13ff).ram();
- map(0x2000, 0x33ff).rom();
- map(0x3c00, 0x3c00).r(FUNC(sc2_state::sc2_beep));
-}
-
-void sc2_state::sc2_io(address_map &map)
-{
- map.unmap_value_high();
- map.global_mask(0xff);
- map(0x00, 0x03).mirror(0xfc).rw("z80pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
-}
-
-/* Input ports */
-static INPUT_PORTS_START( sc2 )
- PORT_START("LINE1")
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
- PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("T") PORT_CODE(KEYCODE_T)
- PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("L") PORT_CODE(KEYCODE_L)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q)
-
- PORT_START("LINE2")
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("A1") PORT_CODE(KEYCODE_1)
- PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("B2") PORT_CODE(KEYCODE_2)
- PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("C3") PORT_CODE(KEYCODE_3)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("D4") PORT_CODE(KEYCODE_4)
+ void sc2_io(address_map &map);
+ void sc2_mem(address_map &map);
- PORT_START("LINE3")
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("E5") PORT_CODE(KEYCODE_5)
- PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("F6") PORT_CODE(KEYCODE_6)
- PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("G7") PORT_CODE(KEYCODE_7)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("H8") PORT_CODE(KEYCODE_8)
+ uint8_t m_kp_matrix;
+ uint8_t m_led_selected;
+ uint8_t m_digit_data;
- PORT_START("LINE4")
- PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("K") PORT_CODE(KEYCODE_K)
- PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("W") PORT_CODE(KEYCODE_W)
- PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("R") PORT_CODE(KEYCODE_R)
- PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("P") PORT_CODE(KEYCODE_O)
-INPUT_PORTS_END
+ void sc2_update_display();
+ DECLARE_READ8_MEMBER(pio_port_a_r);
+ DECLARE_READ8_MEMBER(pio_port_b_r);
+ DECLARE_WRITE8_MEMBER(pio_port_a_w);
+ DECLARE_WRITE8_MEMBER(pio_port_b_w);
+ DECLARE_READ8_MEMBER(speaker_w);
+ template<int State> DECLARE_READ8_MEMBER(speaker_w);
+};
void sc2_state::machine_start()
{
m_digits.resolve();
m_leds.resolve();
- save_item(NAME(m_led_7seg_data));
save_item(NAME(m_kp_matrix));
save_item(NAME(m_led_selected));
save_item(NAME(m_digit_data));
- save_item(NAME(m_beep_state));
}
void sc2_state::machine_reset()
@@ -127,40 +77,51 @@ void sc2_state::machine_reset()
m_kp_matrix = 0;
m_led_selected = 0;
m_digit_data = 0;
- m_beep_state = 0;
- memset(m_led_7seg_data, 0, ARRAY_LENGTH(m_led_7seg_data));
}
-void sc2_state::sc2_update_display()
+
+template<int State>
+READ8_MEMBER( sc2_state::speaker_w )
{
- uint8_t digit_data = bitswap<8>( m_digit_data,7,0,1,2,3,4,5,6 ) & 0x7f;
+ if (!machine().side_effects_disabled())
+ m_dac->write(State);
- if (!BIT(m_led_selected, 0))
- {
- m_digits[0] = digit_data;
- m_led_7seg_data[0] = digit_data;
+ return 0xff;
+}
- m_leds[0] = BIT(m_digit_data, 7);
- }
+void sc2_state::sc2_mem(address_map &map)
+{
+ map.unmap_value_high();
+ map(0x0000, 0x0fff).rom();
+ map(0x1000, 0x13ff).ram();
+ map(0x2000, 0x33ff).rom();
+ map(0x3400, 0x3400).r(FUNC(sc2_state::speaker_w<1>));
+ map(0x3c00, 0x3c00).r(FUNC(sc2_state::speaker_w<0>));
+}
- if (!BIT(m_led_selected, 1))
- {
- m_digits[1] = digit_data;
- m_led_7seg_data[1] = digit_data;
+void sc2_state::sc2_io(address_map &map)
+{
+ map.unmap_value_high();
+ map.global_mask(0xff);
+ map(0x00, 0x03).mirror(0xfc).rw(m_pio, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
+}
- m_leds[1] = BIT(m_digit_data, 7);
- }
- if (!BIT(m_led_selected, 2))
- {
- m_digits[2] = digit_data;
- m_led_7seg_data[2] = digit_data;
- }
+void sc2_state::sc2_update_display()
+{
+ uint8_t digit_data = bitswap<8>(m_digit_data,7,0,1,2,3,4,5,6) & 0x7f;
- if (!BIT(m_led_selected, 3))
+ // latch display data
+ for (int i = 0; i < 4; i++)
{
- m_digits[3] = digit_data;
- m_led_7seg_data[3] = digit_data;
+ if (!BIT(m_led_selected, i))
+ {
+ m_digits[i] = digit_data;
+
+ // schach/matt leds
+ if (i < 2)
+ m_leds[i] = BIT(m_digit_data, 7);
+ }
}
}
@@ -173,25 +134,10 @@ READ8_MEMBER( sc2_state::pio_port_b_r )
{
uint8_t data = m_led_selected & 0x0f;
- if (BIT(m_kp_matrix, 0))
- {
- data |= ioport("LINE1")->read();
- }
-
- if (BIT(m_kp_matrix, 1))
- {
- data |= ioport("LINE2")->read();
- }
-
- if (BIT(m_kp_matrix, 2))
- {
- data |= ioport("LINE3")->read();
- }
-
- if (BIT(m_kp_matrix, 3))
- {
- data |= ioport("LINE4")->read();
- }
+ // read keypad matrix
+ for (int i = 0; i < 4; i++)
+ if (BIT(m_kp_matrix, i))
+ data |= m_keypad[i]->read();
return data;
}
@@ -212,6 +158,38 @@ WRITE8_MEMBER( sc2_state::pio_port_b_w )
m_kp_matrix = data;
}
+
+/* Input ports */
+
+static INPUT_PORTS_START( sc2 )
+ PORT_START("LINE1")
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("T") PORT_CODE(KEYCODE_T)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CODE(KEYCODE_DEL) PORT_CODE(KEYCODE_BACKSPACE)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD)
+
+ PORT_START("LINE2")
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("A1") PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) PORT_CODE(KEYCODE_A)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("B2") PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) PORT_CODE(KEYCODE_B)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("C3") PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) PORT_CODE(KEYCODE_C)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("D4") PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_CODE(KEYCODE_D)
+
+ PORT_START("LINE3")
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("E5") PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_CODE(KEYCODE_E)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("F6") PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_CODE(KEYCODE_F)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("G7") PORT_CODE(KEYCODE_7) PORT_CODE(KEYCODE_7_PAD) PORT_CODE(KEYCODE_G)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("H8") PORT_CODE(KEYCODE_8) PORT_CODE(KEYCODE_8_PAD) PORT_CODE(KEYCODE_H)
+
+ PORT_START("LINE4")
+ PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("K") PORT_CODE(KEYCODE_K)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("W") PORT_CODE(KEYCODE_W)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("R") PORT_CODE(KEYCODE_R)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("P") PORT_CODE(KEYCODE_O)
+INPUT_PORTS_END
+
+
+/* Machine config */
+
void sc2_state::sc2(machine_config &config)
{
/* basic machine hardware */
@@ -223,18 +201,21 @@ void sc2_state::sc2(machine_config &config)
config.set_default_layout(layout_sc2);
/* devices */
- z80pio_device& pio(Z80PIO(config, "z80pio", 9.8304_MHz_XTAL/4));
- pio.in_pa_callback().set(FUNC(sc2_state::pio_port_a_r));
- pio.out_pa_callback().set(FUNC(sc2_state::pio_port_a_w));
- pio.in_pb_callback().set(FUNC(sc2_state::pio_port_b_r));
- pio.out_pb_callback().set(FUNC(sc2_state::pio_port_b_w));
+ Z80PIO(config, m_pio, 9.8304_MHz_XTAL/4);
+ m_pio->in_pa_callback().set(FUNC(sc2_state::pio_port_a_r));
+ m_pio->out_pa_callback().set(FUNC(sc2_state::pio_port_a_w));
+ m_pio->in_pb_callback().set(FUNC(sc2_state::pio_port_b_r));
+ m_pio->out_pb_callback().set(FUNC(sc2_state::pio_port_b_w));
/* sound hardware */
- SPEAKER(config, "mono").front_center();
- BEEP(config, m_beep, 3250).add_route(ALL_OUTPUTS, "mono", 0.50);
+ SPEAKER(config, "speaker").front_center();
+ DAC_1BIT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.25);
+ VOLTAGE_REGULATOR(config, "vref").add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
}
+
/* ROM definition */
+
ROM_START( sc2 )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "bm008.bin", 0x0000, 0x0400, CRC(3023ea82) SHA1(07020d153d802c672c39e1af3c716dbe35e23f08))
@@ -248,7 +229,10 @@ ROM_START( sc2 )
ROM_LOAD( "bm016.bin", 0x3000, 0x0400, CRC(4fe0853a) SHA1(c2253e320778b0ea468fb54f26ae83d07f9700e6))
ROM_END
+} // anonymous namespace
+
+
/* Driver */
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1981, sc2, 0, 0, sc2, sc2, sc2_state, empty_init, "VEB Mikroelektronik Erfurt", "Schachcomputer SC2", MACHINE_SUPPORTS_SAVE )
+// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
+COMP( 1981, sc2, 0, 0, sc2, sc2, sc2_state, empty_init, "VEB Mikroelektronik Erfurt", "Schachcomputer SC 2", MACHINE_SUPPORTS_SAVE )