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-rw-r--r--src/mame/drivers/pp.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/pp.cpp b/src/mame/drivers/pp.cpp
index a16b62a719b..30ae4f265fd 100644
--- a/src/mame/drivers/pp.cpp
+++ b/src/mame/drivers/pp.cpp
@@ -210,13 +210,13 @@ u8 pp_state::kbd_cols_r()
READ_LINE_MEMBER(pp_state::cntl_r)
{
// pin 1 of J13 connector
- return (m_modifiers->read() & 0x5) != 0x5;
+ return (m_modifiers->read() & 0x5) == 0x5;
}
READ_LINE_MEMBER(pp_state::shift_r)
{
// pin 3 of J13 connector
- return (m_modifiers->read() & 0x6) != 0x6;
+ return (m_modifiers->read() & 0x6) == 0x6;
}
WRITE_LINE_MEMBER(pp_state::printer_busy_w)