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-rw-r--r--gas/doc/c-msp430.texi13
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diff --git a/gas/doc/c-msp430.texi b/gas/doc/c-msp430.texi
index eb0e757..d80f540 100644
--- a/gas/doc/c-msp430.texi
+++ b/gas/doc/c-msp430.texi
@@ -107,6 +107,19 @@ disables warnings about missing NOP instructions.
mark the object file as one that requires data to copied from ROM to
RAM at execution startup. Disabled by default.
+@item -mdata-region=@var{region}
+Select the region data will be placed in.
+Region placement is performed by the compiler and linker. The only effect this
+option will have on the assembler is that if @var{upper} or @var{either} is
+selected, then the symbols to initialise high data and bss will be defined.
+Valid @var{region} values are:
+@table @code
+@item none
+@item lower
+@item upper
+@item either
+@end table
+
@end table
@node MSP430 Syntax