Preprocessor (Luna-Sourcecode)

The preprocessor is a part of the compiler, which prepares the source code for the compile and assemble process. There are two preprocessors in the luna-compiler. One for the Luna-Source and one for the Assembler-Source.

The following parts will be processed by the preprocessor:

• dissolve arithmetic and logic expressions with constants.
• conditional in-/exclusion of sourcecode parts.
• inclusion of external sourcecode and data files
• replacing of defines/macros in the sourcecode.
• processing of inline functions.

• #Define - Defines/Aliases.
• #Undef - Remove a Define.
• #pragma, #pragmaSave, #pragmaRestore, #pragmaDefault - control compiler-internal processes
• #If-#else-#endif - conditional compilation.
• #select-#case-#default-#endselect - conditional compilation.
• #macro - Macros
• #Include - includes sourcecode.
• #IncludeData - includes binary data into the flasch.
• #Library - Import a external library.
• #cdecl, #odecl, #idecl - parameter definition for implicit calls.
• #error - Put a error message (interrupts the compile process).
• #warning - Put a warning message.
• #message - Put a info message (without line number and origin).

• Defined() - check wether there is a constant or a symbol defined.
• lo8() resp. low() - Low-Byte of a 16-Bit-value
• hi8() resp. high() - High-Byte of a 16-Bit-value
• byte1() - 1. Byte of a 32-Bit-value
• byte2() - 2. Byte of a 32-Bit-value
• byte3() - 3. Byte of a 32-Bit-value
• byte4() - 4. Byte of a 32-Bit-value
• byte() - Typecasting into an 8-Bit-Integer.
• word() - Typecasting into a 16-Bit-Integer.
• integer() - Typecasting into a signed 16-Bit-Integer.
• long() - Typecasting into a 32-Bit-Integer.
• longint() - Typecasting into a signed 32-Bit-Integer.
• single() - Typecasting into a signed 32-Bit-Float.
• float() - Typecasting into a signed 32-Bit-Float.

• odd() - check wether the value is odd.
• even() - check wether the value is even.
• chr() - conversion into binary string (byte).
• mkb() - conversion into binary string (byte).
• mki() - conversion into binary string (integer).
• mkw() - conversion into binary string (word).
• mkl() - conversion into binary string (long).
• mks() - conversion into binary string (single).
• strfill() - fill string with string.
• hex() - conversion into hexadecimal notation.
• str() - conversion into decimal notation.
• bin() - conversion into binary notation.
• asc() - conversion of the first character of a string into its numeric equivalent.
• min() - arithmetic function.
• max() - arithmetic function.
• format() - formatted, numeric decimal notation.