10 Fixed-Point Arithmetic Support

The MPLAB® XC-DSC C/C++ Compiler for dsPIC33A DSC supports fixed-point arithmetic according to the N1169 draft of ISO/IEC TR 18037. The ISO C99 technical report on Embedded C, can be accessed using the following link:

www.open-std.org/JTC1/SC22/WG14/www/projects#18037

The compiler also supports ISO/IEC TR 18037:2008(en), Annex F: C++ Compatibility and Migration Issues, F1:Fixed-point arithmetic, unless otherwise noted.

This chapter describes the implementation-specific details of the types and operations supported by the compiler under these draft standards.