The library includes cores for AMBA AHB/APB control, the LEON3 SPARC processor, 32-bit PC133 SDRAM controller, 32-bit PCI bridge with DMA, 10/100 Mbit ethernet MAC, 8/16/32-bit prom and sram controller, generic UART, modular timer unit, interrupt controller, and a 32-bit GPIO port. Memory and pad generators are available for Virage, Xilinx, UMC, Atmel, and Actel.

http://www.gaisler.com/products/grlib/grlib.html