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seta.cpp: Acknowledge 65C02 IRQs

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This commit is contained in:
AJR 2020-12-02 16:46:38 -05:00
parent 9ba38969a3
commit e2065520d1
2 changed files with 11 additions and 22 deletions
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32
src/mame/drivers/seta.cpp
View File

@ -1541,19 +1541,6 @@ void seta_state::timer_regs_w(offs_t offset, u16 data)
#endif // USE_uPD71054_TIMER
/***************************************************************************
Sound
***************************************************************************/
WRITE_LINE_MEMBER(seta_state::utoukond_ym3438_interrupt)
{
m_audiocpu->set_input_line(INPUT_LINE_NMI, state);
}
/***************************************************************************
@ -3468,6 +3455,9 @@ void downtown_state::sub_bankswitch_lockout_w(u8 data)
{
sub_bankswitch_w(data);
seta_coin_lockout_w(data);
// 65C02 code doesn't seem to do anything to explicitly acknowledge IRQ; implicitly acknowledging it here seems most likely
m_subcpu->set_input_line(m65c02_device::IRQ_LINE, CLEAR_LINE);
}
@ -3577,7 +3567,7 @@ void downtown_state::calibr50_sub_bankswitch_w(u8 data)
// Bit 2: IRQCLR
if (!BIT(data, 2))
m_subcpu->set_input_line(0, CLEAR_LINE);
m_subcpu->set_input_line(m65c02_device::IRQ_LINE, CLEAR_LINE);
// Bit 1: PCMMUTE
m_x1->set_output_gain(ALL_OUTPUTS, BIT(data, 0) ? 0.0f : 1.0f);
@ -7899,10 +7889,10 @@ TIMER_DEVICE_CALLBACK_MEMBER(downtown_state::seta_sub_interrupt)
int scanline = param;
if (scanline == 240)
m_subcpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
m_subcpu->pulse_input_line(m65c02_device::NMI_LINE, attotime::zero);
if (scanline == 112)
m_subcpu->set_input_line(0, HOLD_LINE);
m_subcpu->set_input_line(m65c02_device::IRQ_LINE, ASSERT_LINE);
}
@ -7915,10 +7905,10 @@ TIMER_DEVICE_CALLBACK_MEMBER(downtown_state::tndrcade_sub_interrupt)
int scanline = param;
if (scanline == 240)
m_subcpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
m_subcpu->pulse_input_line(m65c02_device::NMI_LINE, attotime::zero);
if ((scanline % 16) == 0)
m_subcpu->set_input_line(0, HOLD_LINE);
m_subcpu->set_input_line(m65c02_device::IRQ_LINE, ASSERT_LINE);
}
void downtown_state::tndrcade(machine_config &config)
@ -8131,7 +8121,7 @@ void usclssic_state::usclssic(machine_config &config)
SPEAKER(config, "mono").front_center();
GENERIC_LATCH_8(config, m_soundlatch[0]);
m_soundlatch[0]->data_pending_callback().set_inputline(m_subcpu, INPUT_LINE_NMI);
m_soundlatch[0]->data_pending_callback().set_inputline(m_subcpu, m65c02_device::NMI_LINE);
m_soundlatch[0]->set_separate_acknowledge(true);
X1_010(config, m_x1, 16000000); /* 16 MHz */
@ -8190,7 +8180,7 @@ void downtown_state::calibr50(machine_config &config)
SPEAKER(config, "mono").front_center();
GENERIC_LATCH_8(config, m_soundlatch[0]);
m_soundlatch[0]->data_pending_callback().set_inputline(m_subcpu, INPUT_LINE_NMI);
m_soundlatch[0]->data_pending_callback().set_inputline(m_subcpu, m65c02_device::NMI_LINE);
m_soundlatch[0]->set_separate_acknowledge(true);
GENERIC_LATCH_8(config, m_soundlatch[1]);
@ -9551,7 +9541,7 @@ void seta_state::utoukond(machine_config &config)
m_x1->add_route(1, "rspeaker", 1.0);
ym3438_device &ymsnd(YM3438(config, "ymsnd", 16000000/4)); /* 4 MHz */
ymsnd.irq_handler().set(FUNC(seta_state::utoukond_ym3438_interrupt));
ymsnd.irq_handler().set_inputline(m_audiocpu, INPUT_LINE_NMI);
ymsnd.add_route(0, "lspeaker", 0.30);
ymsnd.add_route(1, "rspeaker", 0.30);
}

1
src/mame/includes/seta.h
View File

@ -202,7 +202,6 @@ protected:
void seta_layers_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int sprite_bank_size);
void uPD71054_timer_init();
DECLARE_WRITE_LINE_MEMBER(pit_out0);
DECLARE_WRITE_LINE_MEMBER(utoukond_ym3438_interrupt);
void atehate_map(address_map &map);
void blandia_map(address_map &map);