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v100: Hook up the interrupt controller (nw)

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This commit is contained in:
AJR 2018-01-01 10:04:51 -05:00
parent a5da2e66f8
commit d014b20dcf
1 changed files with 19 additions and 1 deletions
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20
src/mame/drivers/v100.cpp
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@ -24,17 +24,21 @@ public:
, m_maincpu(*this, "maincpu")
, m_brg(*this, "brg")
, m_earom(*this, "earom")
, m_picu(*this, "picu")
, m_p_chargen(*this, "chargen")
{ }
DECLARE_WRITE8_MEMBER(brg_w);
DECLARE_READ8_MEMBER(earom_r);
DECLARE_WRITE8_MEMBER(picu_w);
IRQ_CALLBACK_MEMBER(irq_ack);
DECLARE_WRITE8_MEMBER(ppi_porta_w);
private:
required_device<cpu_device> m_maincpu;
required_device<com8116_device> m_brg;
required_device<er1400_device> m_earom;
required_device<i8214_device> m_picu;
required_region_ptr<u8> m_p_chargen;
};
@ -49,6 +53,18 @@ READ8_MEMBER(v100_state::earom_r)
return m_earom->data_r();
}
WRITE8_MEMBER(v100_state::picu_w)
{
m_picu->b_w((data & 0x0e) >> 1);
m_picu->sgs_w(BIT(data, 4));
}
IRQ_CALLBACK_MEMBER(v100_state::irq_ack)
{
m_maincpu->set_input_line(0, CLEAR_LINE);
return (m_picu->a_r() << 1) | 0xf0;
}
WRITE8_MEMBER(v100_state::ppi_porta_w)
{
logerror("Writing %02X to PPI port A\n", data);
@ -71,7 +87,7 @@ static ADDRESS_MAP_START( io_map, AS_IO, 8, v100_state )
// 0x30 - write ???
AM_RANGE(0x40, 0x40) AM_NOP // read/write ???
// 0x48 - write ???
// 0x60 - write ???
AM_RANGE(0x60, 0x60) AM_WRITE(picu_w)
AM_RANGE(0x70, 0x73) AM_DEVREADWRITE("ppi", i8255_device, read, write)
ADDRESS_MAP_END
@ -84,6 +100,7 @@ static MACHINE_CONFIG_START( v100 )
MCFG_CPU_ADD("maincpu", Z80, XTAL_47_736MHz / 12) // divider not verified
MCFG_CPU_PROGRAM_MAP(mem_map)
MCFG_CPU_IO_MAP(io_map)
MCFG_CPU_IRQ_ACKNOWLEDGE_DRIVER(v100_state, irq_ack)
MCFG_DEVICE_ADD("usart", I8251, XTAL_47_736MHz / 12) // divider not verified
@ -94,6 +111,7 @@ static MACHINE_CONFIG_START( v100 )
//MCFG_DEVICE_ADD("vtac", CRT5037, XTAL_47_736MHz / 12) // divider not verified
MCFG_DEVICE_ADD("picu", I8214, XTAL_47_736MHz / 12)
MCFG_I8214_INT_CALLBACK(ASSERTLINE("maincpu", 0))
MCFG_DEVICE_ADD("ppi", I8255, 0)
MCFG_I8255_OUT_PORTA_CB(WRITE8(v100_state, ppi_porta_w))