Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-25 09:50:04 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

fidel_eag68k: disable_interrupt_mixer for feagv5 (nw)

Browse Source
This commit is contained in:
hap 2019-04-05 01:18:03 +02:00
parent c8dee62d29
commit 0822d1ee2b
3 changed files with 14 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/devices/cpu/m68000/m68000.h
View File

@ -35,6 +35,10 @@ constexpr int M68K_IRQ_5 = 5;
constexpr int M68K_IRQ_6 = 6;
constexpr int M68K_IRQ_7 = 7;
constexpr int M68K_IRQ_IPL0 = 0;
constexpr int M68K_IRQ_IPL1 = 1;
constexpr int M68K_IRQ_IPL2 = 2;
constexpr int M68K_SZ_LONG = 0;
constexpr int M68K_SZ_BYTE = 1;
constexpr int M68K_SZ_WORD = 2;

2
src/mame/drivers/cps2.cpp
View File

@ -657,7 +657,7 @@ Stephh's inputs notes (based on some tests on the "parent" set) :
TIMER_DEVICE_CALLBACK_MEMBER(cps2_state::cps2_interrupt)
{
/* direct irq line connection, irq1 is vblank, irq2 is some sort of scanline interrupt. */
/* direct irq line connection, IPL1 is vblank, IPL2 is some sort of scanline interrupt. */
if (param == 0)
m_scancalls = 0;

12
src/mame/drivers/fidel_eag68k.cpp
View File

@ -173,6 +173,7 @@ class eag_state : public fidelbase_state
public:
eag_state(const machine_config &mconfig, device_type type, const char *tag) :
fidelbase_state(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_ram(*this, "ram")
{ }
@ -191,6 +192,7 @@ protected:
void eag_base(machine_config &config);
// devices/pointers
required_device<m68000_base_device> m_maincpu;
optional_device<ram_device> m_ram;
// address maps
@ -519,12 +521,13 @@ void eag_state::eag_base(machine_config &config)
{
/* basic machine hardware */
M68000(config, m_maincpu, 16_MHz_XTAL);
m_maincpu->disable_interrupt_mixer();
m_maincpu->set_addrmap(AS_PROGRAM, &eag_state::eag_map);
const attotime irq_period = attotime::from_hz(4.9152_MHz_XTAL/0x2000); // 4060 Q13, 600Hz
TIMER(config, m_irq_on).configure_periodic(FUNC(eag_state::irq_on<M68K_IRQ_2>), irq_period);
TIMER(config, m_irq_on).configure_periodic(FUNC(eag_state::irq_on<M68K_IRQ_IPL1>), irq_period);
m_irq_on->set_start_delay(irq_period - attotime::from_nsec(8250)); // active for 8.25us
TIMER(config, "irq_off").configure_periodic(FUNC(eag_state::irq_off<M68K_IRQ_2>), irq_period);
TIMER(config, "irq_off").configure_periodic(FUNC(eag_state::irq_off<M68K_IRQ_IPL1>), irq_period);
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_1);
@ -573,7 +576,7 @@ void eagv5_state::eagv5(machine_config &config)
GENERIC_LATCH_8(config, m_mainlatch);
GENERIC_LATCH_8(config, m_sublatch);
m_sublatch->data_pending_callback().set_inputline(m_maincpu, M68K_IRQ_1); // IPL0
m_sublatch->data_pending_callback().set_inputline(m_maincpu, M68K_IRQ_IPL0);
// gen_latch syncs on write, but this is still needed with tight cpu comms
// (not that it locks up or anything, but it will calculate moves much slower if timing is off)
@ -586,6 +589,7 @@ void eag_state::eagv7(machine_config &config)
/* basic machine hardware */
M68020(config.replace(), m_maincpu, 20_MHz_XTAL); // also seen with 25MHz XTAL
m_maincpu->disable_interrupt_mixer();
m_maincpu->set_addrmap(AS_PROGRAM, &eag_state::eagv7_map);
}
@ -595,6 +599,7 @@ void eag_state::eagv9(machine_config &config)
/* basic machine hardware */
M68030(config.replace(), m_maincpu, 32_MHz_XTAL/2); // also seen with 40MHz XTAL
m_maincpu->disable_interrupt_mixer();
m_maincpu->set_addrmap(AS_PROGRAM, &eag_state::eagv7_map);
}
@ -604,6 +609,7 @@ void eag_state::eagv10(machine_config &config)
/* basic machine hardware */
M68040(config.replace(), m_maincpu, 25_MHz_XTAL);
m_maincpu->disable_interrupt_mixer();
m_maincpu->set_addrmap(AS_PROGRAM, &eag_state::eagv10_map);
}