User manual

XC8 Command-line Driver

 2012 Microchip Technology Inc. DS52053B-page 119

4.9.2 Compiler Tab

The options in this dialog control the aspects of compilation up to code generation. See

Figure 4-6 in conjunction with the following command line option equivalents.

1. Define macros: The buttons and fields grouped in the bracket can be used to

define preprocessor macros. See Section 4.8.2 “-D: Define Macro”.

2. Undefine macros: The buttons and fields grouped in the bracket can be used to

undefine preprocessor macros. See Section 4.8.14 “-U: Undefine a Macro”.

3. Preprocess assembly: The checkbox controls whether assembly source files are

scanned by the preprocessor. See Section 4.8.11 “-P: Preprocess Assembly

Files”.

FIGURE 4-6: THE COMPILER TAB

4. Optimization settings: These controls are used to adjust the different optimiza-

tions the compiler employs. See Section 4.8.42 “--OPT: Invoke Compiler Opti-

mizations”.

5. Identifier length: This selector controls the maximum identifier length in C source.

See Section 4.8.9 “-N: Identifier Length”.