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8 Platform-specific options

GCC provides a range of platform-specific options for different types of CPUs. These options control features such as hardware floating-point modes, and the use of special instructions for different CPUs. They can be selected with the -m option on the command line, and work with all the GCC language frontends, such as gcc and g++.

The following sections describe some of the options available for common platforms. A complete list of all platform-specific options can be found in the GCC Reference Manual, "Using GCC" (see section Further reading). Support for new processors is added to GCC as they become available, therefore some of the options described in this chapter may not be found in older versions of GCC.

  Published under the terms of the GNU General Public License Design by Interspire