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author | 2021-08-26 20:07:07 -0400 | |
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committer | 2021-08-26 20:07:07 -0400 | |
commit | ea0b9ed65b06e83cb450b9b2135e77b2c220ba76 (patch) | |
tree | 99246d749061047e1ff8a8645f1f0ba1856fd1b5 | |
parent | b106b6a17b568aca77e6ec50b36cce5cad4fe5bb (diff) |
hd6120: Fix effect of TAD on LINK flag
-rw-r--r-- | src/devices/cpu/pdp8/hd6120.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/devices/cpu/pdp8/hd6120.cpp b/src/devices/cpu/pdp8/hd6120.cpp index 110dfffaea5..574cdde757a 100644 --- a/src/devices/cpu/pdp8/hd6120.cpp +++ b/src/devices/cpu/pdp8/hd6120.cpp @@ -606,9 +606,7 @@ void hd6120_device::execute_run() case minor_state::TAD_4: m_temp += m_ac; if (m_temp >= 010000) - m_flags |= 4; - else - m_flags &= 3; + m_flags ^= 4; // LINK is complemented upon carry out next_instruction(); break; |