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Environment Settings Command Prompt ERRORLEVEL Output Files Listing (LST) File Preprocessor (I) File Object (OBJ) File Source (SRC) File Directives Reference ARM BIGENDIAN BROWSE CODE COND DEBUG DEFINE EJECT FLOAT64 INCDIR INIT INTERWORK LISTINCLUDE NOALIAS NOCOND NOEXTEND NOINIT NOINTERWORK NOOBJECT NOPRINT OBJECT OPTIMIZE PACK PAGELENGTH PAGEWIDTH PREPRINT PREPRINTONLY PRINT RESTORE SAVE SIGNED_CHAR SYMBOLS TABS THUMB USERCLASS WARNING WARNINGLEVEL Language Extensions Preprocessor Advanced Programming Error Messages Library Reference AppendixFLOAT64 Compiler Directive
| Abbreviation | F64 | |
| Arguments | None. | |
| Default | 32-bit floating-point math is used. | |
| µVision | Options — CA — 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 |
CA SAMPLE.C FLOAT64 #pragma float64 |
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