M32C Options#
- -mcpu=name#
Select the CPU for which code is generated.
name
may be one ofr8c
for the R8C/Tiny series,m16c
for the M16C (up to /60) series,m32cm
for the M16C/80 series, orm32c
for the M32C/80 series.
- -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.
- -memregs=number#
Specifies the number of memory-based pseudo-registers GCC uses during code generation. These pseudo-registers are 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 GCC’s default runtime libraries.