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(mess) ngen: interrupts (nw)

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cracyc 2014-12-15 10:54:22 -06:00
parent 607739a6bb
commit e9dbfcfb0b
1 changed files with 10 additions and 1 deletions
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11
src/mess/drivers/ngen.c
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@ -120,6 +120,7 @@ public:
DECLARE_WRITE_LINE_MEMBER(fdc_irq_w);
DECLARE_WRITE_LINE_MEMBER(fdc_drq_w);
DECLARE_WRITE8_MEMBER(fdc_control_w);
DECLARE_READ8_MEMBER(irq_cb);
protected:
virtual void machine_reset();
@ -481,6 +482,11 @@ MC6845_UPDATE_ROW( ngen_state::crtc_update_row )
}
}
READ8_MEMBER( ngen_state::irq_cb )
{
return m_pic->acknowledge();
}
void ngen_state::machine_reset()
{
m_port00 = 0;
@ -538,8 +544,9 @@ static MACHINE_CONFIG_START( ngen, ngen_state )
MCFG_CPU_IO_MAP(ngen_io)
MCFG_80186_CHIP_SELECT_CB(WRITE16(ngen_state, cpu_peripheral_cb))
MCFG_80186_TMROUT1_HANDLER(WRITELINE(ngen_state, cpu_timer_w))
MCFG_80186_IRQ_SLAVE_ACK(READ8(ngen_state, irq_cb))
MCFG_PIC8259_ADD( "pic", INPUTLINE("maincpu", 0), VCC, NULL )
MCFG_PIC8259_ADD( "pic", DEVWRITELINE("maincpu",i80186_cpu_device,int0_w), VCC, NULL )
MCFG_DEVICE_ADD("pit", PIT8254, 0)
MCFG_PIT8253_CLK0(78120/4) // 19.53kHz, /4 of the CPU timer output?
@ -629,6 +636,8 @@ static MACHINE_CONFIG_DERIVED( ngen386, ngen )
MCFG_CPU_REPLACE("maincpu", I386, XTAL_50MHz / 2)
MCFG_CPU_PROGRAM_MAP(ngen386_mem)
MCFG_CPU_IO_MAP(ngen386_io)
MCFG_DEVICE_REMOVE("pic")
MCFG_PIC8259_ADD( "pic", INPUTLINE("maincpu", 0), VCC, NULL )
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( 386i, ngen386 )