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namcos21_c67.cpp: Use known XTALs for clocks; reduce sound CPU clock to be within MC68B09E parameters (nw)

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This commit is contained in:
AJR 2019-09-05 22:51:03 -04:00
parent a89629c721
commit 71a797a7d5
1 changed files with 5 additions and 5 deletions
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10
src/mame/drivers/namcos21_c67.cpp
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@ -780,14 +780,14 @@ void namcos21_c67_state::configure_c148_standard(machine_config &config)
// starblad, solvalou, aircomb, cybsled base state
void namcos21_c67_state::namcos21(machine_config &config)
{
M68000(config, m_maincpu, 12288000); /* Master */
M68000(config, m_maincpu, 49.152_MHz_XTAL / 4); /* Master */
m_maincpu->set_addrmap(AS_PROGRAM, &namcos21_c67_state::master_map);
TIMER(config, "scantimer").configure_scanline(FUNC(namcos21_c67_state::screen_scanline), "screen", 0, 1);
M68000(config, m_slave, 12288000); /* Slave */
M68000(config, m_slave, 49.152_MHz_XTAL / 4); /* Slave */
m_slave->set_addrmap(AS_PROGRAM, &namcos21_c67_state::slave_map);
MC6809E(config, m_audiocpu, 3072000); /* Sound */
MC6809E(config, m_audiocpu, 49.152_MHz_XTAL / 24); /* Sound */
m_audiocpu->set_addrmap(AS_PROGRAM, &namcos21_c67_state::sound_map);
m_audiocpu->set_periodic_int(FUNC(namcos21_c67_state::irq0_line_hold), attotime::from_hz(2*60));
@ -802,7 +802,7 @@ void namcos21_c67_state::namcos21(machine_config &config)
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
// TODO: basic parameters to get 60.606060 Hz, x2 is for interlace
m_screen->set_raw(12288000*2, 768, 0, 496, 264*2, 0, 480);
m_screen->set_raw(49.152_MHz_XTAL / 2, 768, 0, 496, 264*2, 0, 480);
m_screen->set_screen_update(FUNC(namcos21_c67_state::screen_update));
m_screen->set_palette(m_palette);
@ -833,7 +833,7 @@ void namcos21_c67_state::namcos21(machine_config &config)
m_c140->add_route(0, "lspeaker", 0.50);
m_c140->add_route(1, "rspeaker", 0.50);
YM2151(config, "ymsnd", 3579580).add_route(0, "lspeaker", 0.30).add_route(1, "rspeaker", 0.30);
YM2151(config, "ymsnd", 3.579545_MHz_XTAL).add_route(0, "lspeaker", 0.30).add_route(1, "rspeaker", 0.30);
}
void namcos21_c67_state::aircomb(machine_config &config)