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Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 3fde0683694..45e2a25dc72 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -544,6 +544,9 @@ Objective-C and Objective-C++ Dialects}. -mno-flush-trap -mflush-trap=@var{number} @gol -G @var{num}} +@emph{M32C Options} +@gccoptlist{-mcpu=@var{cpu} -msim -memregs=@var{number}} + @emph{M680x0 Options} @gccoptlist{-m68000 -m68020 -m68020-40 -m68020-60 -m68030 -m68040 @gol -m68060 -mcpu32 -m5200 -m68881 -mbitfield -mc68000 -mc68020 @gol @@ -6957,6 +6960,7 @@ platform. * HPPA Options:: * i386 and x86-64 Options:: * IA-64 Options:: +* M32C Options:: * M32R/D Options:: * M680x0 Options:: * M68hc1x Options:: @@ -9371,6 +9375,39 @@ to 64 bits. These are HP-UX specific flags. @end table +@node M32C Options +@subsection M32C Options +@cindex M32C options + +@table @gcctabopt +@item -mcpu=@var{name} +@opindex mcpu= +Select the CPU for which code is generated. @var{name} may be one of +@samp{r8c} for the R8C/Tiny series, @samp{m16c} for the M16C (up to +/60) series, @samp{m32cm} for the M16C/80 series, or @samp{m32c} for +the M32C/80 series. + +@item -msim +@opindex msim +Specifies that the program will be run on the simulator. This causes +an alternate runtime library to be linked in which supports, for +example, file I/O. You must not use this option when generating +programs that will run on real hardware; you must provide your own +runtime library for whatever I/O functions are needed. + +@item -memregs=@var{number} +@opindex memregs= +Specifies the number of memory-based pseudo-registers GCC will use +during code generation. These pseudo-registers will be used like real +registers, so there is a tradeoff between GCC's ability to fit the +code into available registers, and the performance penalty of using +memory instead of registers. Note that all modules in a program must +be compiled with the same value for this option. Because of that, you +must not use this option with the default runtime libraries gcc +builds. + +@end table + @node M32R/D Options @subsection M32R/D Options @cindex M32R/D options |
