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invoke.texi: Add info for __AVR_ISA_RMW__ builtin macro 

* doc/invoke.texi: Add info for __AVR_ISA_RMW__ builtin macro

From-SVN: r209169
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Denis Chertykov 2014-04-06 23:09:36 +04:00
parent 738d6b6d83
commit 832e001673
1 changed files with 3 additions and 0 deletions
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gcc/doc/invoke.texi
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@ -12983,6 +12983,9 @@ instructions because of a hardware erratum. Skip instructions are
The second macro is only defined if @code{__AVR_HAVE_JMP_CALL__} is also
set.
@item __AVR_ISA_RMW__
The device has Read-Modify-Write instructions (XCH, LAC, LAS and LAT).
@item __AVR_SFR_OFFSET__=@var{offset}
Instructions that can address I/O special function registers directly
like @code{IN}, @code{OUT}, @code{SBI}, etc.@: may use a different