Processor - One option for each supported x86/Pentium model. This setting determines the instructions permitted, as well as the pipeline optimization strategy used.
	fprecise - Stores all floating point calculations in memory to ensure precise truncation. Fully compatible with the GNU convention for handling floating point comparisons, including comparisons that involve NANs.
	ffunctions - Enables the compiler to use the 387 hardware instructions for certain floating point functions instead of calling them in the library.
	Long Long Support - Fully supports 64-bit data types, constants, and expressions through the long long data type.
	Calling Convention Compatibility - Fully compatible with both Microsoft standard and C calling conventions.
	Hardware Coprocessor—In hardware floating-point (HFP) mode, the compiler uses floating-point registers to hold floating-point data and to perform floatingpoint operations.
	Floating-Point Built-Ins—Controls the use of floating-point intrinsics, such as FABS, FSQRT, and FSIN.
	Placement of Zero-Initialized Data—Controls the allocation of variables and arrays explicitly initialized to zero. Allocating such objects to an uninitialized section will generally reduce the size of the executable ROM image.

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