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Hooked up Xavix2 development menu inputs & i2cmem sda to cpu using the input system [smf, N. Gilbert]

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smf- 2020-03-02 13:41:34 +00:00
parent eac1218d59
commit 0a6807102b
1 changed files with 10 additions and 3 deletions
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13
src/mame/drivers/xavix2.cpp
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@ -28,6 +28,7 @@ public:
, m_maincpu(*this, "maincpu") , m_maincpu(*this, "maincpu")
, m_screen(*this, "screen") , m_screen(*this, "screen")
, m_i2cmem(*this, "i2cmem") , m_i2cmem(*this, "i2cmem")
, m_port0(*this, "port0")
{ } { }
void xavix2(machine_config &config); void xavix2(machine_config &config);
@ -41,6 +42,7 @@ private:
required_device<xavix2_device> m_maincpu; required_device<xavix2_device> m_maincpu;
required_device<screen_device> m_screen; required_device<screen_device> m_screen;
required_device<i2c_24c08_device> m_i2cmem; required_device<i2c_24c08_device> m_i2cmem;
required_ioport m_port0;
u32 m_dma_src; u32 m_dma_src;
u16 m_dma_dst; u16 m_dma_dst;
@ -487,11 +489,10 @@ u32 xavix2_state::port0_r()
{ {
return (m_port0_full & 0xff00ffff) | (port0_r8() << 16); return (m_port0_full & 0xff00ffff) | (port0_r8() << 16);
} }
u8 xavix2_state::port0_r8() u8 xavix2_state::port0_r8()
{ {
u8 data = (m_port0_dataw & m_port0_maskw); u8 data = (m_port0_dataw & m_port0_maskw) | (m_port0->read() & m_port0_maskr);
if (m_port0_maskr & 0x20)
data |= m_i2cmem->read_sda() << 5;
return data; return data;
} }
@ -611,6 +612,12 @@ void xavix2_state::machine_reset()
} }
static INPUT_PORTS_START( xavix2 ) static INPUT_PORTS_START( xavix2 )
PORT_START("port0")
PORT_BIT(0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER)
PORT_BIT(0x0002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP)
PORT_BIT(0x0008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN)
PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_CUSTOM) PORT_READ_LINE_DEVICE_MEMBER("i2cmem", i2cmem_device, read_sda)
INPUT_PORTS_END INPUT_PORTS_END
void xavix2_state::xavix2(machine_config &config) void xavix2_state::xavix2(machine_config &config)