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clock speed needs to be 28 or the games run in slow motion.. (yes I checked the vblank) I suspect the 156 chip has an internal multiplier, the usual input pin is 7Mhz IIRC.

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davidhay 2008-01-13 17:55:14 +00:00
parent 9596eea3ba
commit 066fa9c096
1 changed files with 2 additions and 2 deletions
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4
src/mame/drivers/deco156.c
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@ -423,7 +423,7 @@ static INTERRUPT_GEN( deco32_vbl_interrupt )
static MACHINE_DRIVER_START( hvysmsh )
/* basic machine hardware */
MDRV_CPU_ADD(ARM, 28000000/2) /* Unconfirmed */
MDRV_CPU_ADD(ARM, 28000000) /* Unconfirmed */
MDRV_CPU_PROGRAM_MAP(hvysmsh_map,0)
MDRV_CPU_VBLANK_INT(deco32_vbl_interrupt,1)
@ -459,7 +459,7 @@ MACHINE_DRIVER_END
static MACHINE_DRIVER_START( wcvol95 )
/* basic machine hardware */
MDRV_CPU_ADD(ARM, 28000000/2) /* Unconfirmed */
MDRV_CPU_ADD(ARM, 28000000) /* Unconfirmed */
MDRV_CPU_PROGRAM_MAP(wcvol95_map,0)
MDRV_CPU_VBLANK_INT(deco32_vbl_interrupt,1)