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author | Angelo Salese <angelosa@users.noreply.github.com> | 2011-04-24 23:20:32 +0000 |
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committer | Angelo Salese <angelosa@users.noreply.github.com> | 2011-04-24 23:20:32 +0000 |
commit | 4c18b439bc0d7114963558d643043ce5fc616e47 (patch) | |
tree | 6abdb705bbde33de643e78258b5b509698e1a089 | |
parent | d3c1de2c0422d3af8bec8f5e530a76457cc35798 (diff) |
Hand-tuned sound frequencies in Cop 01 based off an audio reference [Tafoid]
-rw-r--r-- | src/mame/drivers/cop01.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/mame/drivers/cop01.c b/src/mame/drivers/cop01.c index de90b052d48..5fccf693e3b 100644 --- a/src/mame/drivers/cop01.c +++ b/src/mame/drivers/cop01.c @@ -56,7 +56,7 @@ Mighty Guy board layout: #define MIGHTGUY_HACK 0 -#define TIMER_RATE 12000 /* total guess */ +#define TIMER_RATE 11475 /* unknown, hand-tuned to match audio reference */ #define MAINCPU_CLOCK XTAL_12MHz #define AUDIOCPU_CLOCK XTAL_8MHz @@ -455,12 +455,12 @@ static MACHINE_RESET( cop01 ) static MACHINE_CONFIG_START( cop01, cop01_state ) /* basic machine hardware */ - MCFG_CPU_ADD("maincpu", Z80, MAINCPU_CLOCK/2) /* unknown divider */ + MCFG_CPU_ADD("maincpu", Z80, MAINCPU_CLOCK/2) /* unknown clock / divider */ MCFG_CPU_PROGRAM_MAP(cop01_map) MCFG_CPU_IO_MAP(io_map) MCFG_CPU_VBLANK_INT("screen", irq0_line_assert) - MCFG_CPU_ADD("audiocpu", Z80, AUDIOCPU_CLOCK/2) /* unknown divider */ + MCFG_CPU_ADD("audiocpu", Z80, XTAL_3MHz) /* unknown clock / divider, hand-tuned to match audio reference */ MCFG_CPU_PROGRAM_MAP(sound_map) MCFG_CPU_IO_MAP(audio_io_map) @@ -485,14 +485,14 @@ static MACHINE_CONFIG_START( cop01, cop01_state ) /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("ay1", AY8910, 1500000) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15) + MCFG_SOUND_ADD("ay1", AY8910, 1250000) /* unknown clock / divider, hand-tuned to match audio reference */ + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) - MCFG_SOUND_ADD("ay2", AY8910, 1500000) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15) + MCFG_SOUND_ADD("ay2", AY8910, 1250000) /* unknown clock / divider, hand-tuned to match audio reference */ + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) - MCFG_SOUND_ADD("ay3", AY8910, 1500000) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15) + MCFG_SOUND_ADD("ay3", AY8910, 1250000) /* unknown clock / divider, hand-tuned to match audio reference */ + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) MACHINE_CONFIG_END static MACHINE_CONFIG_START( mightguy, cop01_state ) |