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nichibutsu/nichild.cpp: pinpoint demo sounds dip in ldquiz4, TMPZ84C011 runs on separate 6 MHz XTAL

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This commit is contained in:
angelosa 2023-12-01 19:00:08 +01:00
parent 2046f2f593
commit a3f7882e2f
2 changed files with 11 additions and 5 deletions
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13
src/mame/nichibutsu/nichild.cpp
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@ -53,7 +53,8 @@ A LDC labeled 2 pin connector
namespace {
#define MAIN_CLOCK XTAL(21'477'272)
#define MAIN_CLOCK XTAL(12'000'000)
#define VDP_CLOCK XTAL(21'477'272)
#define SOUND_CLOCK XTAL(4'000'000)
class nichild_state : public driver_device
@ -469,7 +470,11 @@ static INPUT_PORTS_START( nichild_quiz )
PORT_START("DSWA")
PORT_DIPUNKNOWN_DIPLOC(0x01, 0x01, "DSWA:8")
PORT_DIPUNKNOWN_DIPLOC(0x02, 0x02, "DSWA:7")
PORT_DIPUNKNOWN_DIPLOC(0x04, 0x04, "DSWA:6")
// at least for ldquiz4, to be verified for other games
// (definitely don't affect sound in shabdama unless it expects attract mode audio from LD player)
PORT_DIPNAME( 0x04, 0x00, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("DSWA:6")
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPUNKNOWN_DIPLOC(0x08, 0x08, "DSWA:5")
PORT_DIPUNKNOWN_DIPLOC(0x10, 0x10, "DSWA:4")
PORT_DIPUNKNOWN_DIPLOC(0x20, 0x20, "DSWA:3")
@ -507,7 +512,7 @@ static const z80_daisy_config daisy_chain_main[] =
void nichild_state::nichild(machine_config &config)
{
TMPZ84C011(config, m_maincpu, MAIN_CLOCK/4);
TMPZ84C011(config, m_maincpu, MAIN_CLOCK/2);
m_maincpu->set_daisy_config(daisy_chain_main);
m_maincpu->set_addrmap(AS_PROGRAM, &nichild_state::main_map);
m_maincpu->set_addrmap(AS_IO, &nichild_state::main_io);
@ -534,7 +539,7 @@ void nichild_state::nichild(machine_config &config)
m_dsw_shifter[1]->data_callback().set_ioport("DSWA");
m_dsw_shifter[1]->qh_callback().set([this](int state) { m_dsw_data = state; });
V9938(config, m_v9938, MAIN_CLOCK);
V9938(config, m_v9938, VDP_CLOCK);
m_v9938->set_screen_ntsc("screen");
m_v9938->set_vram_size(0x40000);
m_v9938->int_cb().set(m_maincpu, FUNC(tmpz84c011_device::trg3)).invert();

3
src/mame/nichibutsu/nichisnd.cpp
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@ -9,7 +9,8 @@
Uses a TMPZ84C011 with YM3812 and two DACs
TODO:
- DVD sound routing in here
- DVD sound routing in here;
- Pinpoint actual subboard name;
***************************************************************************/