From a46b0cb0e88ddb6232ee48a7682108702c0955d0 Mon Sep 17 00:00:00 2001 From: Nicola Salmoria Date: Thu, 17 Jul 2008 18:07:26 +0000 Subject: [PATCH] updated comments after refresh rate was verified on the pcb --- src/mame/drivers/snk68.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/src/mame/drivers/snk68.c b/src/mame/drivers/snk68.c index 57319d117c3..96ffed6dfe0 100644 --- a/src/mame/drivers/snk68.c +++ b/src/mame/drivers/snk68.c @@ -38,11 +38,6 @@ Notes: fixed by this (earlier notes in this driver talked about "sprite flickerings and pop-ups" but I don't know where they happened). -TODO: ------ -- Number of raster lines unknown. Currently set to 264 which gives a 59.19Hz - refresh rate. - ***************************************************************************/ #include "driver.h" @@ -615,7 +610,10 @@ static MACHINE_DRIVER_START( pow ) /* video hardware */ MDRV_SCREEN_ADD("main", RASTER) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) - MDRV_SCREEN_RAW_PARAMS(XTAL_24MHz/4, 384, 0, 256, 264, 16, 240) // inaccurate + // the screen parameters are guessed but should be accurate. They + // give a theoretical refresh rate of 59.1856Hz while the measured + // rate on a SAR board is 59.16Hz. + MDRV_SCREEN_RAW_PARAMS(XTAL_24MHz/4, 384, 0, 256, 264, 16, 240) MDRV_GFXDECODE(pow) MDRV_PALETTE_LENGTH(0x800)