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-rw-r--r--src/mame/drivers/bionicc.cpp6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/mame/drivers/bionicc.cpp b/src/mame/drivers/bionicc.cpp
index 97e602ffaf3..0f13fb4e4e3 100644
--- a/src/mame/drivers/bionicc.cpp
+++ b/src/mame/drivers/bionicc.cpp
@@ -385,10 +385,8 @@ static MACHINE_CONFIG_START( bionicc, bionicc_state )
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
- MCFG_SCREEN_REFRESH_RATE(60)
- MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
- MCFG_SCREEN_SIZE(32*8, 32*8)
- MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
+ /* FIXME: should be 257 visible horizontal pixels, first visible pixel should be repeated, back porch/front porch should be separated */
+ MCFG_SCREEN_RAW_PARAMS(XTAL_24MHz / 4, 386, 0, 256, 260, 0, 224)
MCFG_SCREEN_UPDATE_DRIVER(bionicc_state, screen_update_bionicc)
MCFG_SCREEN_VBLANK_DEVICE("spriteram", buffered_spriteram16_device, vblank_copy_rising)
MCFG_SCREEN_PALETTE("palette")