Hi hap,

I'm not sure about your last driver changes wrt. the 'emumem' bug!?

You've changed the line
m_maincpu->space(AS_PROGRAM).install_ram(0x0800, 0x0fff, 0x1000, m_extram);
to the 2 lines
m_maincpu->space(AS_PROGRAM).install_ram(0x0800, 0x0fff, 0, m_extram);
m_maincpu->space(AS_PROGRAM).install_ram(0x1800, 0x1fff, 0, m_extram);

In my MessExtra I'm still using the line
m_maincpu->space(AS_PROGRAM).install_ram(0x0800, 0x0fff, 0x1000, nullptr);
because 'm_extram' and the necessary 'memory_share_creator' don't work in the old MAME version 0.220.

Should I also change my single line (and if yes, then how?), or is this 'emumem' bug not relevant in the old version 0.220?

Regards,
Franz