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einstein: Disable rom switching side effects (nw)

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This commit is contained in:
Nigel Barnes 2019-11-06 13:21:29 +00:00
parent a58ffe8bf8
commit b4455b8923
1 changed files with 5 additions and 2 deletions
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7
src/mame/drivers/einstein.cpp
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@ -419,8 +419,11 @@ WRITE8_MEMBER(einstein_state::evdpint_msk_w)
READ8_MEMBER( einstein_state::rom_r )
{
m_rom_enabled ^= 1;
m_bank1->set_entry(m_rom_enabled);
if (!machine().side_effects_disabled())
{
m_rom_enabled ^= 1;
m_bank1->set_entry(m_rom_enabled);
}
return 0xff;
}