1.4 List of Interesting Symbols

For a list of assembler and linker symbols, see “MPLAB® XC-DSC Assembler, Linker and Utilities User’s Guide for dsPIC33C/E/F and dsPIC30 DSC” (DS-50003590), “Lists of Interesting Symbols.”

Table 1-2. Compiler Symbols
Symbol	Description	More Information
`C30`	This symbol is defined when `-ansi` is not selected. XC-DSC compiler is in use.	20.3.3 Compiler Output Type Macros
`__C30` or `__C30__`	These symbols are defined with the `-ansi` command line option. If defined, XC-DSC compiler is in use.	20.3.3 Compiler Output Type Macros
`__C30ELF` or `__C30ELF__`	These symbols are defined with the `-ansi` command line option. If defined, compiler is producing ELF output.	20.3.3 Compiler Output Type Macros
`__DATE__`	Current date as a C string	20.3.6 Other Macros
`dsPIC30`	This symbol is defined when `-ansi` is not selected. XC-DSC compiler is in use.	20.3.3 Compiler Output Type Macros
`__dsPIC30ELF` or `__dsPIC30ELF__`	These symbols are defined with the `-ansi` command line option. If defined, compiler is producing ELF output.	20.3.3 Compiler Output Type Macros
`__dsPIC30F__` or `__dsPIC33F__` or `__dsPIC33E__` or `__dsPIC33C__`	Once the compiler defines a symbol based on the target device set with `-mcpu=`, it also defines a symbol based on the target device family.	20.3.4 Device Name and Family (Architecture) Macros
`__dsPICC30` or `__dsPICC30__`	These symbols are defined with the `-ansi` command line option. If defined, XC-DSC compiler is in use.	20.3.3 Compiler Output Type Macros
`__dsPIC3xxxxxx__`	The compiler defines a symbol based on the target device set with `-mcpu=`. For example, `-mcpu=30F6014`, which defines the symbol `__dsPIC30F6014__`.	20.3.4 Device Name and Family (Architecture) Macros
`__FILE__`	Current file name as a C string	20.3.6 Other Macros
`__HAS_5VOLTS__`	Device is a 5-volt device. If device feature is enabled, the symbol is defined.	20.3.5 Device Features Macros
`__HAS_AUXFLASH__`	Device has auxiliary Flash. If device feature is enabled, the symbol is defined.	20.3.5 Device Features Macros
`__HAS_CODEGUARD__`	Device has CodeGuard™ Security. If device feature is enabled, the symbol is defined.	20.3.5 Device Features Macros
`__HAS_DMA__`	Device has a DMA controller. If device feature is enabled, the symbol is defined. This is a generic macro which is set if any DMA controller is present. This DOES NOT indicate that DMA memory is present. To determine if there is any DMA memory, use the `__DMA_BASE` or `__DMA_LENGTH` manifest constants which should be defined the device header file.	20.3.5 Device Features Macros
`__HAS_DMAV2__`	Device has a DMA V2 controller. If device feature is enabled, the symbol is defined. This macro is set if a DMA V2 controller is present. This DOES NOT indicate that DMA memory is present. To determine if there is any DMA memory, use the `__DMA_BASE` or `__DMA_LENGTH` manifest constants which should be defined the device header file.	20.3.5 Device Features Macros
`__HAS_DSP__`	Device has a DSP engine. If device feature is enabled, the symbol is defined.	20.3.5 Device Features Macros
`__HAS_EDS__`	Device has Extended Data Space. If device feature is enabled, the symbol is defined.	20.3.5 Device Features Macros
`__HAS_EEDATA__`	Device has EEPROM data (EEData) memory. If device feature is enabled, the symbol is defined.	20.3.5 Device Features Macros
`__HAS_PMP__`	Device has Parallel Master Port. If device feature is enabled, the symbol is defined.	20.3.5 Device Features Macros
`__HAS_PMPV2__`	Device has Parallel Master Port V2. If device feature is enabled, the symbol is defined.	20.3.5 Device Features Macros
`__LARGE_ARRAYS__`	Set to `1` for `-menable-large-arrays`, set to `0` otherwise.	20.3.2 Compiler Settings Macro
`__LINE__`	Current line number as a decimal integer	20.3.6 Other Macros
`__OPTIMIZATION_LEVEL__`	Set to the value of the big `O` number. For example, both `-Os` and `-O2` would be set to `2`.	20.3.2 Compiler Settings Macro
`__OPTIMIZE_SIZE__`	Defined if `-Os` enabled, undefined otherwise.	20.3.2 Compiler Settings Macro
`__reset`	The linker scripts construct a `GOTO __reset` instruction at location 0 in program memory, which transfers control upon device Reset.	See the “MPLAB® XC-DSC Assembler, Linker and Utilities User’s Guide for dsPIC33C/E/F and dsPIC30 DSC” (DS-50003590), “Lists of Interesting Symbols.”
`__SP_init` `__SPLIM_init`	The linker will allocate an appropriately sized section and initialize `__SP_init` and `__SPLIM_init` so that the run-time startup code can properly initialize the stack.	7.3 Stack 11.2.3.1 Software Stack
`XC_DSC`	This symbol is defined when `-ansi` is not selected. XC-DSC compiler is in use.	20.3.3 Compiler Output Type Macros
`__XC_DSC` or `__XC_DSC__`	These symbols are defined with the `-ansi` command line option. If defined, XC-DSC compiler is in use.	20.3.3 Compiler Output Type Macros
`__XC_DSCELF` or `__XC_DSCELF__`	These symbols are defined with the `-ansi` command line option. If defined, compiler is producing ELF output.	20.3.3 Compiler Output Type Macros
`__XC_DSC_VERSION__`	The compiler will define this constant, giving a numeric value to the version identifier.	20.3.1 Compiler Version Macro