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-@c Copyright (C) 1991, 92-98, 1999 Free Software Foundation, Inc.
-@c This is part of the GAS manual.
-@c For copying conditions, see the file as.texinfo.
-@ifset GENERIC
-@page
-@node M32R-Dependent
-@chapter M32R Dependent Features
-@end ifset
-@ifclear GENERIC
-@node Machine Dependencies
-@chapter M32R Dependent Features
-@end ifclear
-
-@cindex M32R support
-@menu
-* M32R-Opts::                   M32R Options
-* M32R-Warnings::               M32R Warnings
-@end menu
-
-@node M32R-Opts
-@section M32R Options
-
-@cindex options, M32R
-@cindex M32R options
-
-The Mitsubishi M32R version of @code{@value{AS}} has a few machine
-dependent options:
-
-@table @code
-@item -m32rx
-@cindex @samp{-m32rx} option, M32RX
-@cindex architecture options, M32RX
-@cindex M32R architecture options
-@code{@value{AS}} can assemble code for several different members of the
-Mitsubishi M32R family.  Normally the default is to assemble code for
-the M32R microprocessor.  This option may be used to change the default
-to the M32RX microprocessor, which adds some more instructions to the
-basic M32R instruction set, and some additional parameters to some of
-the original instructions.
-
-@item -warn-explicit-parallel-conflicts
-@cindex @samp{-warn-explicit-parallel-conflicts} option, M32RX
-Instructs @code{@value{AS}} to produce warning messages when
-questionable parallel instructions are encountered.  This option is
-enabled by default, but @code{@value{GCC}} disables it when it invokes
-@code{@value{AS}} directly.  Questionable instructions are those whoes
-behaviour would be different if they were executed sequentially.  For
-example the code fragment @samp{mv r1, r2 || mv r3, r1} produces a
-different result from @samp{mv r1, r2 \n mv r3, r1} since the former
-moves r1 into r3 and then r2 into r1, whereas the later moves r2 into r1
-and r3.
-
-@item -Wp
-@cindex @samp{-Wp} option, M32RX
-This is a shorter synonym for the @emph{-warn-explicit-parallel-conflicts}
-option.
-
-@item -no-warn-explicit-parallel-conflicts
-@cindex @samp{-no-warn-explicit-parallel-conflicts} option, M32RX
-Instructs @code{@value{AS}} not to produce warning messages when
-questionable parallel instructions are encountered.
-
-@item -Wnp
-@cindex @samp{-Wnp} option, M32RX
-This is a shorter synonym for the @emph{-no-warn-explicit-parallel-conflicts}
-option.
-
-@end table
-
-@node M32R-Warnings
-@section M32R Warnings
-
-@cindex warnings, M32R
-@cindex M32R warnings
-
-There are several warning and error messages that can be produced by
-@code{@value{AS}} which are specific to the M32R:
-
-@table @code
-
-@item output of 1st instruction is the same as an input to 2nd instruction - is this intentional ?
-This message is only produced if warnings for explicit parallel
-conflicts have been enabled.  It indicates that the assembler has
-encountered a parallel instruction in which the destination register of
-the left hand instruction is used as an input register in the right hand
-instruction.  For example in this code fragment
-@samp{mv r1, r2 || neg r3, r1} register r1 is the destination of the
-move instruction and the input to the neg instruction.
-
-@item output of 2nd instruction is the same as an input to 1st instruction - is this intentional ?
-This message is only produced if warnings for explicit parallel
-conflicts have been enabled.  It indicates that the assembler has
-encountered a parallel instruction in which the destination register of
-the right hand instruction is used as an input register in the left hand
-instruction.  For example in this code fragment
-@samp{mv r1, r2 || neg r2, r3} register r2 is the destination of the
-neg instruction and the input to the move instruction.
-
-@item instruction @samp{...} is for the M32RX only
-This message is produced when the assembler encounters an instruction
-which is only supported by the M32Rx processor, and the @samp{-m32rx}
-command line flag has not been specified to allow assembly of such
-instructions. 
-
-@item unknown instruction @samp{...}
-This message is produced when the assembler encounters an instruction
-which it doe snot recognise.
-
-@item only the NOP instruction can be issued in parallel on the m32r
-This message is produced when the assembler encounters a parallel
-instruction which does not involve a NOP instruction and the
-@samp{-m32rx} command line flag has not been specified.  Only the M32Rx
-processor is able to execute two instructions in parallel.
-
-@item instruction @samp{...} cannot be executed in parallel.
-This message is produced when the assembler encounters a parallel
-instruction which is made up of one or two instructions which cannot be
-executed in parallel.
-
-@item Instructions share the same execution pipeline
-This message is produced when the assembler encounters a parallel
-instruction whoes components both use the same execution pipeline.
-
-@item Instructions write to the same destination register.
-This message is produced when the assembler encounters a parallel
-instruction where both components attempt to modify the same register.
-For example these code fragments will produce this message:
-@samp{mv r1, r2 || neg r1, r3}
-@samp{jl r0 || mv r14, r1}
-@samp{st r2, @@-r1 || mv r1, r3} 
-@samp{mv r1, r2 || ld r0, @@r1+} 
-@samp{cmp r1, r2 || addx r3, r4} (Both write to the condition bit)
-
-@end table