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pet: Fixed video RAM mirroring. [Curt Coder]

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This commit is contained in:
Curt Coder 2017-12-13 21:03:06 +02:00
parent 758d836008
commit aab04d7c4f
1 changed files with 8 additions and 2 deletions
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10
src/mame/drivers/pet.cpp
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@ -482,7 +482,10 @@ READ8_MEMBER( pet_state::read )
break;
case SEL8:
data = m_video_ram[offset & (m_video_ram_size - 1)];
if (!(offset & 0x800))
{
data = m_video_ram[offset & (m_video_ram_size - 1)];
}
break;
case SEL9:
@ -575,7 +578,10 @@ WRITE8_MEMBER( pet_state::write )
break;
case SEL8:
m_video_ram[offset & (m_video_ram_size - 1)] = data;
if (!(offset & 0x800))
{
m_video_ram[offset & (m_video_ram_size - 1)] = data;
}
break;
case SELE: