CodeVision AVR IDE (for Windows), Version 3.50

CodeVision AVR is an Integrated Development Environment (IDE) for the Atmel AVR series of microcontrollers:

ANSI C compiler
flexible, full-featured editor with syntax highlighting (or link to your own editor)
code-generation wizard with peripheral support
programmer for all AVR devices
libraries and examples for peripherals
integrated terminal program and coding features

The latest version of CodeVision AVR is V3.43 (Standard and Advanced). CodeVision AVR has the CodeWizard automatic code generator for all AVR devices including the XMEGA devices and includes the following:

support for 64-bit integer math operations
libraries for a variety of sensors and USB support
libraries for graphical LCDs using the following controllers:

Samsung KS0108 / Hitachi 61202
Epson SED1335 / RAiO RA8835
Epson S1D1370x
Solomon Systech SSD13xx OLED displays
S-MOS Systems SED1520 / JRC NJU6450
Toshiba T6963C
Epson S1D13700 and SED1530
Sunplus SPLC501C
Sitronix ST7565 in both parallel and serial modes
Sitronix ST7920
UltraChip UC1608
UltraChip UC1701 in both parallel and serial modes
Philips PCD8544 (used in the LCDs of the Nokia 3310, 5110 phones)

Color TFT LCDs supported in CodeVision AVR Advanced only:

Ilitek ILI9325 for color TFT 240x320 LCDs
Solomon Systech SSD1289 for color TFT 240x320 LCDs
Solomon Systech SSD1963 for color TFT 320x240, 480x272, and 800x480 LCDs
Solomon Systech SSD2119 for color TFT 240x320 LCDs
DELCOMp XG7100v3