Dobrica Pavlinušić's random unstructured stuff

cfu-playground: Revision 2

* https://www.youtube.com/watch?v=_1yrxrl61o4
* https://www.youtube.com/watch?v=kRTs6B-kEOE

.pre
klin:/klin/FPGA/CFU-Playground/proj/avg_pdti8# cat env.sh
#!/bin/sh -xe

echo https://github.com/google/CFU-Playground

export PATH=/klin/FPGA/saxonsoc/xpack-riscv-none-embed-gcc-8.3.0-1.2/bin/:/klin/FPGA/saxonsoc/riscv64-unknown-elf-gcc-20171231-x86_64-linux-centos6/bin/:$PATH
export TARGET=radiona_ulx3s
make prog

.pre

^^ sumulation

.pre
dpavlin@klin:/klin/FPGA/CFU-Playground/proj/avg_pdti8$ time make PLATFORM=sim load -j 4
.pre