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Diffstat (limited to 'src/mame/video/pc_t1t.cpp')
-rw-r--r--src/mame/video/pc_t1t.cpp9
1 files changed, 5 insertions, 4 deletions
diff --git a/src/mame/video/pc_t1t.cpp b/src/mame/video/pc_t1t.cpp
index f54d6ac03a3..05e9835ffc5 100644
--- a/src/mame/video/pc_t1t.cpp
+++ b/src/mame/video/pc_t1t.cpp
@@ -110,10 +110,11 @@ void pcvideo_pcjr_device::device_start()
***************************************************************************/
-ADDRESS_MAP_START(pc_t1t_device::vram_map)
- ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE(0x20000, 0x3ffff) AM_NOP
-ADDRESS_MAP_END
+void pc_t1t_device::vram_map(address_map &map)
+{
+ map.unmap_value_high();
+ map(0x20000, 0x3ffff).noprw();
+}
MACHINE_CONFIG_START(pcvideo_t1000_device::device_add_mconfig)
MCFG_SCREEN_ADD(T1000_SCREEN_NAME, RASTER)