The interrupt controller lives at I/O 0x4d0/0x4d1.
-rw-r--r-- 17987 COPYING
-rw-r--r-- 13704 Makefile
-rw-r--r-- 2577 README
drwxr-xr-x - documentation
drwxr-xr-x - payloads
drwxr-xr-x - src
drwxr-xr-x - util