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-rw-r--r--src/emu/debug/dvmemory.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/emu/debug/dvmemory.cpp b/src/emu/debug/dvmemory.cpp
index 1a239419f8d..fea8def590e 100644
--- a/src/emu/debug/dvmemory.cpp
+++ b/src/emu/debug/dvmemory.cpp
@@ -1026,6 +1026,8 @@ void debug_view_memory::set_data_format(data_format format)
m_bytes_per_chunk = get_posdata(format).m_bytes;
m_chunks_per_row = m_bytes_per_row / m_bytes_per_chunk;
+ if (m_chunks_per_row < 1)
+ m_chunks_per_row = 1;
m_steps_per_chunk = source.m_space ? source.m_space->byte_to_address(m_bytes_per_chunk) : m_bytes_per_chunk;
pos.m_shift = 0;
pos.m_address -= pos.m_address % m_bytes_per_chunk;