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Diffstat (limited to 'src/devices/video/upd7220.cpp')
-rw-r--r--src/devices/video/upd7220.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/devices/video/upd7220.cpp b/src/devices/video/upd7220.cpp
index 16bbc507a5a..75cc9daa01b 100644
--- a/src/devices/video/upd7220.cpp
+++ b/src/devices/video/upd7220.cpp
@@ -151,7 +151,8 @@ DEFINE_DEVICE_TYPE(UPD7220, upd7220_device, "upd7220", "NEC uPD7220")
// default address map
void upd7220_device::upd7220_vram(address_map &map)
{
- map(0x00000, 0x3ffff).ram();
+ if (!has_configured_map(0))
+ map(0x00000, 0x3ffff).ram();
}
@@ -649,7 +650,7 @@ upd7220_device::upd7220_device(const machine_config &mconfig, const char *tag, d
m_disp(0),
m_gchr(0),
m_bitmap_mod(0),
- m_space_config("videoram", ENDIANNESS_LITTLE, 16, 18, 0, address_map_constructor(), address_map_constructor(FUNC(upd7220_device::upd7220_vram), this))
+ m_space_config("videoram", ENDIANNESS_LITTLE, 16, 18, 0, address_map_constructor(FUNC(upd7220_device::upd7220_vram), this))
{
for (int i = 0; i < 16; i++)
{