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othunder.cpp: changed to mono speaker, as shown on schematics and verified on real board [Guru]

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This commit is contained in:
Ivan Vangelista 2018-03-30 15:38:23 +02:00
parent fcfae40e57
commit 5294f18b9c
2 changed files with 21 additions and 29 deletions
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28
src/mame/drivers/othunder.cpp
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@ -264,15 +264,6 @@ Stephh's notes (based on the game M68000 code and some tests) :
TODO:
-----
- With the correct clock speed of 12MHz for the 68000, garbage graphics remain
over the Taito logo on startup. This seems to be a bug in the original which
would have no effect if our timing was 100% right. The interrupt handling
should be quite correct, it's derived straight from the schematics and PAL
dump.
The current workaround is to make the 68000 run at 13MHz. Lowering below
12MHz would work as well, and possibly be closer to the real reason (wait
states slowing the CPU down?)
- The "FIRE!" arrows pointing to padlocks are not in perfect sync with the
background scrolling. Should they?
@ -667,8 +658,7 @@ void othunder_state::machine_reset()
MACHINE_CONFIG_START(othunder_state::othunder)
/* basic machine hardware */
// MCFG_CPU_ADD("maincpu", M68000, 24000000/2 ) /* 12 MHz */
MCFG_CPU_ADD("maincpu", M68000, 13000000 ) /* fixes garbage graphics on startup */
MCFG_CPU_ADD("maincpu", M68000, 24000000/2 ) /* 12 MHz */
MCFG_CPU_PROGRAM_MAP(othunder_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", othunder_state, vblank_interrupt)
@ -710,7 +700,7 @@ MACHINE_CONFIG_START(othunder_state::othunder)
MCFG_TC0110PCR_PALETTE("palette")
/* sound hardware */
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD("ymsnd", YM2610, 16000000/2)
MCFG_YM2610_IRQ_HANDLER(INPUTLINE("audiocpu", 0))
@ -722,17 +712,17 @@ MACHINE_CONFIG_START(othunder_state::othunder)
MCFG_SOUND_ROUTE(2, "2610.2r", 1.0)
MCFG_FILTER_VOLUME_ADD("2610.0l", 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0)
MCFG_FILTER_VOLUME_ADD("2610.0r", 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0)
MCFG_FILTER_VOLUME_ADD("2610.1l", 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0)
MCFG_FILTER_VOLUME_ADD("2610.1r", 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0)
MCFG_FILTER_VOLUME_ADD("2610.2l", 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0)
MCFG_FILTER_VOLUME_ADD("2610.2r", 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0)
MCFG_DEVICE_ADD("tc0140syt", TC0140SYT, 0)
MCFG_TC0140SYT_MASTER_CPU("maincpu")
@ -978,4 +968,4 @@ GAME( 1988, othundero, othunder, othunder, othunder, othunder_state, 0, ORIENT
GAME( 1988, othunderu, othunder, othunder, othundu, othunder_state, 0, ORIENTATION_FLIP_X, "Taito America Corporation", "Operation Thunderbolt (US, rev 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1988, othunderuo, othunder, othunder, othundu, othunder_state, 0, ORIENTATION_FLIP_X, "Taito America Corporation", "Operation Thunderbolt (US)", MACHINE_SUPPORTS_SAVE )
GAME( 1988, othunderj, othunder, othunder, othundrj, othunder_state, 0, ORIENTATION_FLIP_X, "Taito Corporation", "Operation Thunderbolt (Japan)", MACHINE_SUPPORTS_SAVE )
GAME( 1988, othunderjsc, othunder, othunder, othundrj, othunder_state, 0, ORIENTATION_FLIP_X, "Taito Corporation", "Operation Thunderbolt (Japan, SC)", MACHINE_SUPPORTS_SAVE )
GAME( 1988, othunderjsc, othunder, othunder, othundrj, othunder_state, 0, ORIENTATION_FLIP_X, "Taito Corporation", "Operation Thunderbolt (Japan, SC)", MACHINE_SUPPORTS_SAVE )

22
src/mame/includes/othunder.h
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@ -41,6 +41,18 @@ public:
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette") { }
void othunder(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
void update_irq();
void draw_sprites(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, const int *primasks, int y_offs);
DECLARE_WRITE16_MEMBER(irq_ack_w);
DECLARE_WRITE8_MEMBER(eeprom_w);
DECLARE_WRITE8_MEMBER(coins_w);
@ -53,18 +65,8 @@ public:
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(vblank_interrupt);
void othunder(machine_config &config);
void othunder_map(address_map &map);
void z80_sound_map(address_map &map);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
void update_irq();
void draw_sprites(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, const int *primasks, int y_offs);
/* memory pointers */
required_shared_ptr<uint16_t> m_spriteram;