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Diffstat (limited to 'src/mame/video/pc9801.cpp')
-rw-r--r--src/mame/video/pc9801.cpp8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/mame/video/pc9801.cpp b/src/mame/video/pc9801.cpp
index 421bb6fc530..e421b995cd5 100644
--- a/src/mame/video/pc9801.cpp
+++ b/src/mame/video/pc9801.cpp
@@ -448,7 +448,7 @@ READ16_MEMBER(pc9801_state::tvram_r)
if((offset & 0x1000) && (mem_mask == 0xff00))
return 0xffff;
- if(offset < (0x3fe0>>1))
+ if(offset < (0x3fe2>>1))
res = m_tvram[offset];
else
res = m_memsw->read(offset & 0xf);
@@ -458,10 +458,10 @@ READ16_MEMBER(pc9801_state::tvram_r)
WRITE16_MEMBER(pc9801_state::tvram_w)
{
- if(offset < (0x3fe0>>1))
+ if(offset < (0x3fe2>>1))
COMBINE_DATA(&m_tvram[offset]);
- else if(m_video_ff[MEMSW_REG])
- m_memsw->write(offset & 0x0f, data);
+ else if(m_video_ff[MEMSW_REG] && ACCESSING_BITS_0_7)
+ m_memsw->write(offset & 0x0f, data & 0xff);
COMBINE_DATA(&m_video_ram_1[offset]); //TODO: check me
}