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Diffstat (limited to 'gcc/invoke.texi')
| -rw-r--r-- | gcc/invoke.texi | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/invoke.texi b/gcc/invoke.texi index 885978fa6a0..acd8c53b900 100644 --- a/gcc/invoke.texi +++ b/gcc/invoke.texi @@ -233,6 +233,10 @@ in the following sections. -mfpa -mnobitfield -mrtd -mshort -msoft-float -mpcrel -malign-int -mstrict-align +@emph{M68hc1x Options} +-m6811 -m6812 -m68hc11 -m68hc12 +-mauto-incdec -mshort -msoft-reg-count=@var{count} + @emph{VAX Options} -mg -mgnu -munix @@ -2360,6 +2364,9 @@ standard error. Annotate the assembler output with a comment indicating which pattern and alternative was used. The length of each instruction is also printed. +@item P +Dump the RTL in the assembler output as a comment before each instruction. +Also turns on @samp{-dp} annotation. @item v For each of the other indicated dump files (except for @file{@var{file}.00.rtl}), dump a representation of the control flow graph @@ -3889,6 +3896,7 @@ that macro, which enables you to change the defaults. @menu * M680x0 Options:: +* M68hc1x Options:: * VAX Options:: * SPARC Options:: * Convex Options:: @@ -4069,6 +4077,41 @@ the system. @end table +@node M68hc1x Options +@subsection M68hc1x Options +@cindex M68hc1x options + +These are the @samp{-m} options defined for the 68hc11 and 68hc12 +microcontrollers. The default values for these options depends on +which style of microcontroller was selected when the compiler was configured; +the defaults for the most common choices are given below. + +@table @code +@item -m6811 +@itemx -m68hc11 +Generate output for a 68HC11. This is the default +when the compiler is configured for 68HC11-based systems. + +@item -m6812 +@itemx -m68hc12 +Generate output for a 68HC12. This is the default +when the compiler is configured for 68HC12-based systems. + +@item -mauto-incdec +Enable the use of 68HC12 pre and post auto-increment and auto-decrement +addressing modes. + +@item -mshort +Consider type @code{int} to be 16 bits wide, like @code{short int}. + +@item -msoft-reg-count=@var{count} +Specify the number of pseudo-soft registers which are used for the +code generation. The maximum number is 32. Using more pseudo-soft +register may or may not result in better code depending on the program. +The default is 4 for 68HC11 and 2 for 68HC12. + +@end table + @node VAX Options @subsection VAX Options @cindex VAX options |