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(MESS) DG680 : fixed on-screen clock (nw)

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This commit is contained in:
Robbbert 2013-01-19 12:40:14 +00:00
parent 4c0ea172d3
commit 6a63c5d31c
1 changed files with 25 additions and 4 deletions
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29
src/mess/drivers/binbug.c
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@ -415,6 +415,8 @@ public:
DECLARE_READ8_MEMBER(port08_r); DECLARE_READ8_MEMBER(port08_r);
DECLARE_WRITE8_MEMBER(port08_w); DECLARE_WRITE8_MEMBER(port08_w);
DECLARE_WRITE8_MEMBER(kbd_put); DECLARE_WRITE8_MEMBER(kbd_put);
TIMER_DEVICE_CALLBACK_MEMBER(time_tick);
TIMER_DEVICE_CALLBACK_MEMBER(uart_tick);
UINT8 m_pio_b; UINT8 m_pio_b;
UINT8 m_term_data; UINT8 m_term_data;
UINT8 m_protection[0x100]; UINT8 m_protection[0x100];
@ -517,12 +519,29 @@ static Z80PIO_INTERFACE( z80pio_intf )
DEVCB_NULL DEVCB_NULL
}; };
TIMER_DEVICE_CALLBACK_MEMBER(dg680_state::time_tick)
{
// ch0 is for the clock
m_ctc->trg0(1);
m_ctc->trg0(0);
// no idea about ch2
m_ctc->trg2(1);
m_ctc->trg2(0);
}
TIMER_DEVICE_CALLBACK_MEMBER(dg680_state::uart_tick)
{
// ch3 is for cassette
m_ctc->trg3(1);
m_ctc->trg3(0);
}
static Z80CTC_INTERFACE( z80ctc_intf ) static Z80CTC_INTERFACE( z80ctc_intf )
{ {
DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0), // interrupt handler DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0), // interrupt handler
DEVCB_DEVICE_LINE_MEMBER("z80ctc", z80ctc_device, trg1), // ZC/TO0 callback DEVCB_DEVICE_LINE_MEMBER("z80ctc", z80ctc_device, trg1), // ZC/TO0 callback
DEVCB_DEVICE_LINE_MEMBER("z80ctc", z80ctc_device, trg2), // ZC/TO1 callback DEVCB_NULL, // ZC/TO1 callback
DEVCB_DEVICE_LINE_MEMBER("z80ctc", z80ctc_device, trg3) // ZC/TO2 callback DEVCB_NULL // ZC/TO2 callback
}; };
static MACHINE_CONFIG_START( dg680, dg680_state ) static MACHINE_CONFIG_START( dg680, dg680_state )
@ -555,13 +574,15 @@ static MACHINE_CONFIG_START( dg680, dg680_state )
/* Devices */ /* Devices */
MCFG_Z80CTC_ADD( "z80ctc", XTAL_8MHz / 4, z80ctc_intf ) MCFG_Z80CTC_ADD( "z80ctc", XTAL_8MHz / 4, z80ctc_intf )
MCFG_Z80PIO_ADD( "z80pio", XTAL_8MHz / 4, z80pio_intf ) MCFG_Z80PIO_ADD( "z80pio", XTAL_8MHz / 4, z80pio_intf )
MCFG_TIMER_DRIVER_ADD_PERIODIC("ctc0", dg680_state, time_tick, attotime::from_hz(200))
MCFG_TIMER_DRIVER_ADD_PERIODIC("ctc3", dg680_state, uart_tick, attotime::from_hz(4800))
MACHINE_CONFIG_END MACHINE_CONFIG_END
/* ROM definition */ /* ROM definition */
ROM_START( dg680 ) ROM_START( dg680 )
ROM_REGION( 0x10000, "maincpu", 0 ) ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "dg680.rom", 0xd000, 0x0800, CRC(c1aaef6a) SHA1(1508ca8315452edfb984718e795ccbe79a0c0b58) ) ROM_LOAD( "dg680.rom", 0xd000, 0x0800, BAD_DUMP CRC(c1aaef6a) SHA1(1508ca8315452edfb984718e795ccbe79a0c0b58) )
ROM_REGION( 0x0800, "chargen", 0 ) ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "6574.bin", 0x0000, 0x0800, CRC(fd75df4f) SHA1(4d09aae2f933478532b7d3d1a2dee7123d9828ca) ) ROM_LOAD( "6574.bin", 0x0000, 0x0800, CRC(fd75df4f) SHA1(4d09aae2f933478532b7d3d1a2dee7123d9828ca) )
@ -573,4 +594,4 @@ ROM_END
/* Driver */ /* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1980, dg680, 0, 0, dg680, dg680, driver_device, 0, "David Griffiths", "DGOS-Z80 1.4", GAME_NOT_WORKING | GAME_NO_SOUND_HW ) COMP( 1980, dg680, 0, 0, dg680, dg680, driver_device, 0, "David Griffiths", "DG680 with DGOS-Z80 1.4", GAME_NOT_WORKING | GAME_NO_SOUND_HW )