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-rw-r--r--src/mame/drivers/atarittl.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/mame/drivers/atarittl.cpp b/src/mame/drivers/atarittl.cpp
index de670ba816b..73f720f082a 100644
--- a/src/mame/drivers/atarittl.cpp
+++ b/src/mame/drivers/atarittl.cpp
@@ -251,11 +251,12 @@ void tank_state::tank(machine_config &config)
// Length of active video, end of front-porch, end of sync signal, end of back porch
// TODO: The total hblank period is 128, the total hsync period is 32, unknown how to convert this to porches.
// TODo: The total vblank period is 80, the total vsync period is 8, unknown how to convert this to porches.
- m_video->set_horz_params(776, 0, 32, 128);
- m_video->set_vert_params(432, 0, 8, 80);
+ m_video->set_horz_params(776, 776, 808, 904);
+ m_video->set_vert_params(432, 432, 440, 520);
m_video->set_fieldcount(2);
m_video->set_threshold(1.0);
- //m_video->set_gain(0.2);
+ m_video->set_vsync_threshold(0.368);
+ m_video->set_gain(0.47);
//m_video->set_horz_scale(1);
}