From 1a05fad1c039ce0fa4210f83f5b6f4af8f74482e Mon Sep 17 00:00:00 2001 From: Nicola Salmoria Date: Mon, 14 Jul 2008 15:27:34 +0000 Subject: [PATCH] comments change --- src/mame/drivers/aliens.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/mame/drivers/aliens.c b/src/mame/drivers/aliens.c index 6414385bbf4..1ef1c30ec9c 100644 --- a/src/mame/drivers/aliens.c +++ b/src/mame/drivers/aliens.c @@ -236,7 +236,10 @@ static const struct YM2151interface ym2151_interface = static MACHINE_DRIVER_START( aliens ) /* basic machine hardware */ - MDRV_CPU_ADD(KONAMI, 5000000) /* ? 3MHz is too low, sprites flicker in the pseudo-3D levels */ + + /* external clock should be 12MHz probably, CPU internal divider and precise cycle timings */ + /* are unknown though. 3MHz is too low, sprites flicker in the pseudo-3D levels */ + MDRV_CPU_ADD(KONAMI, 6000000) /* ? */ MDRV_CPU_PROGRAM_MAP(aliens_map,0) MDRV_CPU_VBLANK_INT("main", aliens_interrupt)