Bluespec environment and libraries for Lattice ECP5, Specifically the ULX3S board

UART, Mult18x18D, PLL, SDRAM access imported to Bluespec

Provides simplified floating point library for Single precision floats

Getting started

First, go to "./tools" and run "make. The replacetoken utility is required to modify bluespec-generated verilog code to be compatible with yosys