The AndeSight IDE Lite can be downloaded here now. Please read and accept the License Agreement posted below.
The AndeSight IDE without code size limitation can be applied here now.
The Arduino IDE can be downloaded here now.
The Eclipse Arduino IDE can be downloaded here now.

The Andes GNU toolchain source code can be downloaded from here.
The Andes GNU toolchain binary executable package can be downloaded here
BSP v3.2.1 (GCC 4.4.4 based version, with Linux toolchains)
BSP v4.2.0 (GCC 4.9.4 based version; support AndeStar ISA V3 family)

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