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Diffstat (limited to 'src/mess/drivers/hh_ucom4.c')
-rw-r--r--src/mess/drivers/hh_ucom4.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mess/drivers/hh_ucom4.c b/src/mess/drivers/hh_ucom4.c
index c31c962d08f..1210d58492f 100644
--- a/src/mess/drivers/hh_ucom4.c
+++ b/src/mess/drivers/hh_ucom4.c
@@ -117,7 +117,7 @@ void hh_ucom4_state::machine_start()
{
// zerofill
memset(m_display_state, 0, sizeof(m_display_state));
- memset(m_display_cache, 0, sizeof(m_display_cache));
+ memset(m_display_cache, ~0, sizeof(m_display_cache));
memset(m_display_decay, 0, sizeof(m_display_decay));
memset(m_display_segmask, 0, sizeof(m_display_segmask));