diff options
Diffstat (limited to 'gas/doc/c-msp430.texi')
| -rw-r--r-- | gas/doc/c-msp430.texi | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/gas/doc/c-msp430.texi b/gas/doc/c-msp430.texi index 4a46961..d8fe3ce 100644 --- a/gas/doc/c-msp430.texi +++ b/gas/doc/c-msp430.texi @@ -1,4 +1,4 @@ -@c Copyright 2002-2013 Free Software Foundation, Inc. +@c Copyright 2002-2014 Free Software Foundation, Inc. @c This is part of the GAS manual. @c For copying conditions, see the file as.texinfo. @ifset GENERIC @@ -29,13 +29,12 @@ @table @code @item -mmcu -selects the mpu arch. If the architecture is 430Xv2 then this also -enables NOP generation unless the @option{-mN} is also specified. +selects the mcu architecture. If the architecture is 430Xv2 then this +also enables NOP generation unless the @option{-mN} is also specified. @item -mcpu selects the cpu architecture. If the architecture is 430Xv2 then this -also enables NOP generation unless the @option{-mN} is also -specified. +also enables NOP generation unless the @option{-mN} is also specified. @item -mP enables polymorph instructions handler. @@ -55,17 +54,25 @@ SR}, @code{BIS #8, SR} or @code{MOV.W <>, SR}) must be followed by a NOP instruction in order to ensure the correct processing of interrupts. By default it is up to the programmer to supply these NOP instructions, but this command line option enables -the automatic insertion by the assembler. Note - the assembler does -not peek ahead to the next instruction so it will insert a NOP even -one is already present. +the automatic insertion by the assembler, if they are missing. -@c end-sanitize-msp430 -@c %redact note changed text for mN option @item -mN disables the generation of a NOP instruction following any instruction that might change the interrupts enabled/disabled state. This is the default behaviour. +@item -mz +tells the assembler to generate a warning message if a NOP does not +immediately forllow an instruction that enables or disables +interrupts. This is the default. + +Note that this option can be stacked with the @option{-mn} option so +that the assembler will both warn about missing NOP instructions and +then insert them automatically. + +@item -mZ +disables warnings about missing NOP instructions. + @item -md mark the object file as one that requires data to copied from ROM to RAM at execution startup. Disabled by default. |