Cobham Gaisler AB provides IP cores and supporting development tools for embedded processors based on the SPARC architecture. We specialize in digital hardware design for both commercial and aerospace applications


Before you use the GPL version of LEON3/GRLIB, please make sure that you read and understand the GPL license.

Answers to common licensing questions can be found at our license FAQ section.

LEON3 and GRLIB IP Library File
LEON3/GRLIB source code grlib-gpl-2019.4-b4246.tar.gz   (Changelog.txt) 18-Dec-2019
GRLIB User's Manual grlib.pdf 26-Mar-2020
GRLIB IP Cores Manual grip.pdf 26-Mar-2020
LEON/GRLIB Configuration Guide guide.pdf 26-Mar-2020
Additional GRLIB components*    
GRFPU netlists for Xilinx and Altera grlib-netlists-gpl-2019.4.tar.gz (license) 18-Dec-2019
FPGA bitfiles for GRLIB template designs grlib-bitfiles-gpl-2019.4.tar.gz 18-Dec-2019

 *To install additional components, untar the packages inside GRLIB

Documentation File
SPARC V8 Manual sparcv8.pdf -
SPARC V8 System V ABI sparc-abi.pdf -
Sun SPARC Assembler Manual 816-1681.pdf -