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Diffstat (limited to 'src/devices/cpu/m6502/st2xxx.cpp')
-rw-r--r-- | src/devices/cpu/m6502/st2xxx.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/devices/cpu/m6502/st2xxx.cpp b/src/devices/cpu/m6502/st2xxx.cpp index 8905e9942d4..5748668b6c3 100644 --- a/src/devices/cpu/m6502/st2xxx.cpp +++ b/src/devices/cpu/m6502/st2xxx.cpp @@ -124,6 +124,7 @@ u8 st2xxx_device::pdata_r(offs_t offset) void st2xxx_device::pdata_w(offs_t offset, u8 data) { + // Set output state (CMOS or open drain) or activate/deactive pullups for input pins if (data != m_pdata[offset]) { m_pdata[offset] = data; |