This file describes the implementation notes of the GNU C Compiler for the ATMEL AVR micro controllers family. The generated assembly code requires the GNU assembler (GAS). This is not currently included as part of the binutils package. Patches against binutils-2.9.5.0.13 can be obtained from http://medo.fov.uni-mb.si/mapp/uTools. This site also has patches for the GNU debugger (GDB). GCC can be configured as a cross compiler for the AVR architectures on the same system. Use `configure --target=avr' to configure GCC. Further installation notes and other useful information about AVR tools can also be obtained from http://medo.fov.uni-mb.si/mapp/uTools. Mailing list, avr@fov.uni-mb.si, exists to discuss related issues and suggestions for further optimizations and improvements. Denis Chertykov , 30 Jan 2000