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author Aaron Giles <aaron@aarongiles.com>2007-12-24 03:13:19 +0000
committer Aaron Giles <aaron@aarongiles.com>2007-12-24 03:13:19 +0000
commita570a7d8c6fa369d0098392b43b6e9239a52ebe4 (patch)
treeff0b09cf5f7b85dff88a906b515951b9bbb2c879
parentec956ae1bf1485c2f2bec4852bebc0e58450baea (diff)
(From Corrado Tomaselli)
Verified some cpu clocks of original boards using a frequency counter: * Changed Success Joe Ym2203 clock from 3mhz to 4mhz * Changed Pang M6295 clock from 990khz to 1Mhz * Changed Halley Comet main cpu clock to 1.664mhz (it's not a mistake, the clock is very low)
-rw-r--r--src/mame/drivers/ashnojoe.c8
-rw-r--r--src/mame/drivers/halleys.c6
-rw-r--r--src/mame/drivers/mitchell.c8
3 files changed, 11 insertions, 11 deletions
diff --git a/src/mame/drivers/ashnojoe.c b/src/mame/drivers/ashnojoe.c
index f4d7681b53f..aa738bff8c4 100644
--- a/src/mame/drivers/ashnojoe.c
+++ b/src/mame/drivers/ashnojoe.c
@@ -353,16 +353,16 @@ static DRIVER_INIT( ashnojoe )
static MACHINE_DRIVER_START( ashnojoe )
/* basic machine hardware */
- MDRV_CPU_ADD(M68000, 8000000) /* 8 MHz? */
+ MDRV_CPU_ADD(M68000, 8000000) /* 8 MHz (verified on pcb) */
MDRV_CPU_PROGRAM_MAP(ashnojoe_readmem,ashnojoe_writemem)
MDRV_CPU_VBLANK_INT(irq1_line_hold,1)
- MDRV_CPU_ADD(Z80, 4000000) /* 4 MHz ??? */
+ MDRV_CPU_ADD(Z80, 4000000) /* 4 MHz (verified on pcb) */
/* audio CPU */
MDRV_CPU_PROGRAM_MAP(sound_readmem,sound_writemem)
MDRV_CPU_IO_MAP(sound_readport,sound_writeport)
- MDRV_SCREEN_REFRESH_RATE(60)
+ MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION)
/* video hardware */
@@ -380,7 +380,7 @@ static MACHINE_DRIVER_START( ashnojoe )
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
- MDRV_SOUND_ADD(YM2203, 3000000)
+ MDRV_SOUND_ADD(YM2203, 4000000) /* 4 MHz (verified on pcb) */
MDRV_SOUND_CONFIG(ym2203_interface)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
diff --git a/src/mame/drivers/halleys.c b/src/mame/drivers/halleys.c
index a7dcd122804..ee7408b7377 100644
--- a/src/mame/drivers/halleys.c
+++ b/src/mame/drivers/halleys.c
@@ -1947,11 +1947,11 @@ static const struct AY8910interface ay8910_interface =
static MACHINE_DRIVER_START( halleys )
- MDRV_CPU_ADD_TAG("main", M6809, 19968000/4) // 5Mhz?(19.968MHz XTAL)
+ MDRV_CPU_ADD_TAG("main", M6809, 1664000) /* 19968000/12 (verified on pcb) */
MDRV_CPU_PROGRAM_MAP(readmem, writemem)
MDRV_CPU_VBLANK_INT(halleys_interrupt, 4)
- MDRV_CPU_ADD(Z80, 6000000/2) // 3MHz(6MHz XTAL)
+ MDRV_CPU_ADD(Z80, 6000000/2) /* (verified on pcb) */
/* audio CPU */
MDRV_CPU_PROGRAM_MAP(sound_readmem, sound_writemem)
MDRV_CPU_PERIODIC_INT(irq0_line_hold, (double)6000000/(4*16*16*10*16))
@@ -1975,7 +1975,7 @@ static MACHINE_DRIVER_START( halleys )
// sound hardware
MDRV_SPEAKER_STANDARD_MONO("mono")
- MDRV_SOUND_ADD(AY8910, 6000000/4)
+ MDRV_SOUND_ADD(AY8910, 6000000/4) /* (verified on pcb) */
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15)
MDRV_SOUND_ADD(AY8910, 6000000/4)
diff --git a/src/mame/drivers/mitchell.c b/src/mame/drivers/mitchell.c
index b97c35cc33c..e8dd9dc48a8 100644
--- a/src/mame/drivers/mitchell.c
+++ b/src/mame/drivers/mitchell.c
@@ -1361,7 +1361,7 @@ MACHINE_DRIVER_END
static MACHINE_DRIVER_START( pang )
/* basic machine hardware */
- MDRV_CPU_ADD_TAG("main",Z80, 8000000) /* Super Pang says 8MHZ ORIGINAL BOARD */
+ MDRV_CPU_ADD_TAG("main",Z80, 8000000) /* (verified on pcb) */
MDRV_CPU_PROGRAM_MAP(readmem,writemem)
MDRV_CPU_IO_MAP(readport,writeport)
MDRV_CPU_VBLANK_INT(irq0_line_hold,2) /* ??? one extra irq seems to be needed for music (see input5_r) */
@@ -1385,11 +1385,11 @@ static MACHINE_DRIVER_START( pang )
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
- MDRV_SOUND_ADD_TAG("oki", OKIM6295, 990000)
- MDRV_SOUND_CONFIG(okim6295_interface_region_1_pin7high) // clock frequency & pin 7 not verified
+ MDRV_SOUND_ADD_TAG("oki", OKIM6295, 1000000) /* (verified on pcb) */
+ MDRV_SOUND_CONFIG(okim6295_interface_region_1_pin7high) // clock frequency & pin 7 verified
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
- MDRV_SOUND_ADD_TAG("ym2413",YM2413, 4000000)
+ MDRV_SOUND_ADD_TAG("ym2413",YM2413, 4000000) /* (verified on pcb) */
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_DRIVER_END