ref: ed3a576e8b103032b659febc5d3c62565c9cf7d7
dir: /sys/src/boot/bcm/mkfile/
URL=https://github.com/raspberrypi/firmware/raw/master/boot FILES=bootcode.bin fixup_cd.dat start_cd.elf LICENCE.broadcom all:V: $FILES clean:V: rm -f $FILES $FILES: for(i in $target){ hget -o $i $URL/$i }