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simpsons: fix sound problems after soft reset

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This commit is contained in:
hap 2022-07-01 18:37:32 +02:00
parent 8d3f76a569
commit 5a5f220698
3 changed files with 7 additions and 8 deletions
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6
src/mame/konami/simpsons.cpp
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@ -172,15 +172,13 @@ void simpsons_state::z80_arm_nmi_w(uint8_t data)
// MAME instead does not emulate memory cycle timing and checks the NMI before executing an instruction,
// so we have to manually delay the NMI until the following HALT instruction has started.
m_audiocpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
m_nmi_enabled = machine().time().as_ticks(m_audiocpu->clock()) + 3;
m_nmi_blocked->adjust(m_audiocpu->cycles_to_attotime(4));
}
void simpsons_state::z80_nmi_w(int state)
{
if(state && m_nmi_enabled && machine().time().as_ticks(m_audiocpu->clock()) > m_nmi_enabled) {
m_nmi_enabled = 0;
if (state && !m_nmi_blocked->enabled())
m_audiocpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
}
}
void simpsons_state::z80_map(address_map &map)

2
src/mame/konami/simpsons.h
View File

@ -51,7 +51,7 @@ private:
/* misc */
int m_firq_enabled = 0;
u64 m_nmi_enabled = 0;
emu_timer *m_nmi_blocked;
/* views */
memory_view m_palette_view;

7
src/mame/konami/simpsons_m.cpp
View File

@ -47,7 +47,9 @@ void simpsons_state::coin_counter_w(uint8_t data)
uint8_t simpsons_state::sound_interrupt_r()
{
m_audiocpu->set_input_line_and_vector(0, HOLD_LINE, 0xff ); // Z80
if (!machine().side_effects_disabled())
m_audiocpu->set_input_line_and_vector(0, HOLD_LINE, 0xff); // Z80
return 0x00;
}
@ -73,7 +75,6 @@ void simpsons_state::machine_start()
membank("bank2")->configure_entries(2, 6, memregion("audiocpu")->base() + 0x10000, 0x4000);
save_item(NAME(m_firq_enabled));
save_item(NAME(m_nmi_enabled));
save_item(NAME(m_sprite_colorbase));
save_item(NAME(m_layer_colorbase));
save_item(NAME(m_layerpri));
@ -81,6 +82,7 @@ void simpsons_state::machine_start()
m_dma_start_timer = timer_alloc(FUNC(simpsons_state::dma_start), this);
m_dma_end_timer = timer_alloc(FUNC(simpsons_state::dma_end), this);
m_nmi_blocked = timer_alloc(timer_expired_delegate());
}
void simpsons_state::machine_reset()
@ -93,7 +95,6 @@ void simpsons_state::machine_reset()
m_sprite_colorbase = 0;
m_firq_enabled = 0;
m_nmi_enabled = 0;
/* init the default banks */
membank("bank1")->set_entry(0);