Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 08:22:15 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

dphh8213: Improve inputs; work around unemulated SPI device

Browse Source
This commit is contained in:
AJR 2020-12-18 17:38:54 -05:00
parent 91c0991e55
commit caf1e140ba
1 changed files with 69 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

90
src/mame/drivers/st22xx_bbl338.cpp
View File

@ -14,21 +14,36 @@ public:
, m_maincpu(*this, "maincpu")
, m_screen(*this, "screen")
, m_lcdc(*this, "lcdc")
, m_input_matrix(*this, "IN%u", 1U)
, m_portb(0xff)
{
}
void st22xx_bbl338(machine_config &config);
protected:
virtual void machine_start() override;
private:
u8 porta_r();
void portb_w(u8 data);
void st22xx_bbl338_map(address_map &map);
required_device<st2xxx_device> m_maincpu;
required_device<screen_device> m_screen;
required_device<bl_handhelds_lcdc_device> m_lcdc;
required_ioport_array<4> m_input_matrix;
u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
u8 m_portb;
};
void st22xx_bbl338_state::machine_start()
{
save_item(NAME(m_portb));
}
void st22xx_bbl338_state::st22xx_bbl338_map(address_map &map)
{
@ -43,39 +58,71 @@ u32 st22xx_bbl338_state::screen_update(screen_device &screen, bitmap_rgb32 &bitm
return m_lcdc->render_to_bitmap(screen, bitmap, cliprect);
}
u8 st22xx_bbl338_state::porta_r()
{
u8 input = 0x3f;
// irregular port configuration
if (!BIT(m_portb, 0))
input &= m_input_matrix[0]->read();
for (int i = 1; i < 4; i++)
if (!BIT(m_portb, i * 2 - 1))
input &= m_input_matrix[i]->read();
// TODO: bit 7 is I/O for some bitbanged SPI device (used for the menu)
input |= 0xc0;
return input;
}
void st22xx_bbl338_state::portb_w(u8 data)
{
m_portb = data;
}
static INPUT_PORTS_START(st22xx_bbl338)
PORT_START("IN0") // not confirmed, but probably similar to other units
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) // maybe ON/OFF
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_UP)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_START1)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_BUTTON3) PORT_NAME("SOUND")
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_NAME("B")
PORT_START("IN1") // not confirmed, but probably similar to other units
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("A")
PORT_BIT(0x06, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0xe0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("IN1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_START1)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_BIT(0x30, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("IN2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN)
PORT_BIT(0x30, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("IN3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("A")
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_NAME("B")
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP)
PORT_START("IN4")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_BIT(0x0e, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_START("PORTC")
PORT_CONFNAME( 0x01, 0x01, DEF_STR( Language ) )
PORT_CONFSETTING( 0x00, "Chinese" )
PORT_CONFSETTING( 0x01, "English" )
PORT_BIT(0xfe, IP_ACTIVE_LOW, IPT_UNUSED) // probably unused
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
PORT_BIT(0xf6, IP_ACTIVE_LOW, IPT_UNUSED) // probably unused
INPUT_PORTS_END
void st22xx_bbl338_state::st22xx_bbl338(machine_config &config)
{
ST2302U(config, m_maincpu, 12000000); // likely higher clock
ST2302U(config, m_maincpu, 24000000);
m_maincpu->set_addrmap(AS_DATA, &st22xx_bbl338_state::st22xx_bbl338_map);
m_maincpu->in_pa_callback().set_ioport("IN0");
m_maincpu->in_pb_callback().set_ioport("IN1");
m_maincpu->in_pc_callback().set_ioport("IN2");
m_maincpu->in_pa_callback().set(FUNC(st22xx_bbl338_state::porta_r));
m_maincpu->out_pb_callback().set(FUNC(st22xx_bbl338_state::portb_w));
m_maincpu->in_pc_callback().set_ioport("PORTC");
// incorrect for bbl338
SCREEN(config, m_screen, SCREEN_TYPE_LCD);
@ -101,6 +148,7 @@ ROM_END
ROM_START( dphh8213 )
ROM_REGION( 0x200000, "maincpu", 0 )
ROM_LOAD( "mx29lv160cb.u1", 0x000000, 0x200000, CRC(c8e7e355) SHA1(726f28c2c9ab012a6842f9f30a0a71538741ba14) )
ROM_FILL( 0x00009f, 2, 0xea ) // NOP out SPI check
ROM_END
// this is uses a higher resolution display than the common units, but not as high as the SunPlus based ones