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pc9801: force fail unknown device probe (nw)

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This commit is contained in:
cracyc 2018-04-15 21:32:08 -05:00
parent 8419b7cf5d
commit 73e9041964
1 changed files with 1 additions and 0 deletions
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src/mame/drivers/pc9801.cpp
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@ -1493,6 +1493,7 @@ void pc9801_state::pc9821_io(address_map &map)
// AM_RANGE(0x0cc0, 0x0cc7) SCSI interface / <undefined>
// AM_RANGE(0x0cfc, 0x0cff) PCI bus
map(0x1e8c, 0x1e8f).noprw(); // IDE RAM switch
map(0x2ed0, 0x2edf).r(read8_delegate([](address_space &s, offs_t o, u8 mm) { return 0xff; }, "pc9821_unkaudio")).umask32(0xffffffff); // unknown sound related
map(0x3fd8, 0x3fdf).rw(m_pit8253, FUNC(pit8253_device::read), FUNC(pit8253_device::write)).umask32(0xff00ff00); // <undefined> / pit mirror ports
map(0x7fd8, 0x7fdf).rw("ppi8255_mouse", FUNC(i8255_device::read), FUNC(i8255_device::write)).umask32(0xff00ff00);
map(0x841c, 0x841f).rw(this, FUNC(pc9801_state::sdip_0_r), FUNC(pc9801_state::sdip_0_w));