1.2 Recommended Reading
This guide describes the changes to source code and build options that might be required should you decide to migrate a C-based project from the AVR® 8-bit GNU Toolchain to the Microchip MPLAB® XC8 C Compiler. The following Microchip documents are also available and are recommended as supplemental reference resources.
MPLAB® XC8 C Compiler User’s Guide for AVR® MCU
This version of the compiler's user's guide is for projects that target 8-bit AVR devices.
MPLAB® XC8 C Compiler Release Notes for AVR® MCU
For the latest information on using MPLAB XC8 C Compiler, read MPLAB® XC8 C Compiler Release Notes (an HTML file) in the docs subdirectory of the compiler’s installation directory. The release notes contain the latest information and known issues that might not be included in the C Compiler's user’s guide.
Microchip Unified Standard Library Reference Guide
This guide contains information and examples relating to the types, macros, and functions defined by the C standard libraries and which is shipped with all MPLAB XC C compilers.
Development Tools Release Notes
For the latest information on using other development tools, refer to the tool-specific Readme files in the docs subdirectory of the MPLAB X IDE installation directory.