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-rw-r--r--gas/doc/c-avr.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/gas/doc/c-avr.texi b/gas/doc/c-avr.texi
index e9cc274..305e64c 100644
--- a/gas/doc/c-avr.texi
+++ b/gas/doc/c-avr.texi
@@ -129,6 +129,10 @@ This option disable warnings for skipping two-word instructions.
@item -mno-wrap
This option reject @code{rjmp/rcall} instructions with 8K wrap-around.
+@cindex @code{-mrmw} command line option, AVR
+@item -mrmw
+Accept Read-Modify-Write (@code{XCH,LAC,LAS,LAT}) instructions.
+
@end table