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pa7234: Fix slot selection logic to keep the number from underflowing

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This commit is contained in:
AJR 2021-02-09 11:09:27 -05:00
parent 8d25f46228
commit 7445c016ba
1 changed files with 1 additions and 1 deletions
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src/devices/bus/pasopia/pac2exp.cpp
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@ -88,5 +88,5 @@ void pasopia_pa7234_device::pac2_write(offs_t offset, u8 data)
// 1, 2, 3, 4 or 7 may supposedly be written here // 1, 2, 3, 4 or 7 may supposedly be written here
if ((offset & 3) == 3 && (data & 0x07) != 0) if ((offset & 3) == 3 && (data & 0x07) != 0)
m_slot_selected = (data & 0x03) - 1; m_slot_selected = (data - 1) & 0x03;
} }