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Appendix
FLOAT64 Compiler Directive
| Abbreviation | F64 |
| Arguments | None. |
| Default | 32-bit floating-point math is used. |
| µVision | Options — C166 — Double-precision Floating-point. |
| Description | The FLOAT64 directive enables 64-bit (double-precision) floating-point math for double variable types in your C programs. Variables of type float continue to use 32-bit floating-point math. By default, all floating-point math is performed using 32-bits (even when the double type is specified.) The FLOAT64 directive must be specified to use 64-bit floating-point math. |
| Example |
C166 SAMPLE.C FLOAT64
#pragma float64
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