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mario: Workaround for MT #6870

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This commit is contained in:
AJR 2018-02-12 22:13:13 -05:00
parent 525dab7ab3
commit 11dec07aee
1 changed files with 11 additions and 4 deletions
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15
src/mame/audio/mario.cpp
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@ -419,20 +419,27 @@ void mario_state::set_ea(int ea)
void mario_state::sound_start() void mario_state::sound_start()
{ {
device_t *audiocpu = machine().device("audiocpu"); device_t *audiocpu = machine().device("audiocpu");
#if USE_8039
uint8_t *SND = memregion("audiocpu")->base(); uint8_t *SND = memregion("audiocpu")->base();
#if USE_8039
SND[0x1001] = 0x01; SND[0x1001] = 0x01;
#endif #endif
m_eabank = nullptr; m_eabank = nullptr;
if (audiocpu != nullptr && audiocpu->type() != Z80) if (audiocpu != nullptr && audiocpu->type() != Z80)
{ {
m_eabank = "bank1"; m_eabank = "bank1";
audiocpu->memory().space(AS_PROGRAM).install_read_bank(0x000, 0x7ff, "bank1"); audiocpu->memory().space(AS_PROGRAM).install_read_bank(0x000, 0x7ff, "bank1");
membank("bank1")->configure_entry(0, memregion("audiocpu")->base()); membank("bank1")->configure_entry(0, &SND[0]);
membank("bank1")->configure_entry(1, memregion("audiocpu")->base() + 0x1000); membank("bank1")->configure_entry(1, &SND[0x1000]);
#if !USE_8039
// Hack to bootstrap MCU program into external MB1
SND[0x0000] = 0xf5;
SND[0x0001] = 0x04;
SND[0x0002] = 0x00;
#endif
} }
save_item(NAME(m_last)); save_item(NAME(m_last));