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-rw-r--r--src/mame/video/segag80v.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mame/video/segag80v.cpp b/src/mame/video/segag80v.cpp
index d3731bb37e5..110930e5973 100644
--- a/src/mame/video/segag80v.cpp
+++ b/src/mame/video/segag80v.cpp
@@ -325,7 +325,8 @@ void segag80v_state::sega_generate_vector_list()
void segag80v_state::video_start()
{
- assert_always(m_vectorram.bytes() != 0, "vectorram==0");
+ if (!m_vectorram.bytes())
+ throw emu_fatalerror("segag80v_state::video_start: !vectorram.bytes()");
m_min_x =m_screen->visible_area().min_x;
m_min_y =m_screen->visible_area().min_y;