24 Embedded Compiler Compatibility Mode

All three MPLAB XC C compilers can be placed into a compatibility mode. In this mode, they are syntactically compatible with the non-standard C language extensions used by other non-Microchip embedded compiler vendors. This compatibility allows C source code written for other compilers to be compiled with minimum modification when using the MPLAB XC compilers.

Since very different device architectures may be targeted by other compilers, the semantics of the non-standard extensions may be different to that in the MPLAB XC compilers. This document indicates when the original C code may need to be reviewed.

The compatibility features offered by the MPLAB C compilers are discussed in the following topics.