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-rw-r--r--src/devices/cpu/m6502/om740.lst2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/cpu/m6502/om740.lst b/src/devices/cpu/m6502/om740.lst
index 86e09028517..cf383b50266 100644
--- a/src/devices/cpu/m6502/om740.lst
+++ b/src/devices/cpu/m6502/om740.lst
@@ -1146,7 +1146,7 @@ sty_m_aba
sty_m_zpg
TMP = read_pc();
read_dummy(TMP);
- write(TMP, X);
+ write(TMP, Y);
prefetch();
sty_m_zpx