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Diffstat (limited to 'src/mame/drivers/apple2e.cpp')
-rw-r--r--src/mame/drivers/apple2e.cpp7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mame/drivers/apple2e.cpp b/src/mame/drivers/apple2e.cpp
index dc0ea99767e..732a525b6d5 100644
--- a/src/mame/drivers/apple2e.cpp
+++ b/src/mame/drivers/apple2e.cpp
@@ -1319,8 +1319,11 @@ void apple2e_state::do_io(address_space &space, int offset, bool is_iic)
break;
case 0x50: // graphics mode
- machine().first_screen()->update_now();
- m_video->m_graphics = true;
+ if (m_video->m_graphics == false) // avoid flickering from II+ refresh polling
+ {
+ machine().first_screen()->update_now();
+ m_video->m_graphics = true;
+ }
break;
case 0x51: // text mode