/bootbusvar.h/1.2/Thu Jun  4 05:22:11 2015//Tnetbsd-10
/iobusvar.h/1.2/Mon Aug 17 21:25:12 2020//Tnetbsd-10
/mainbusvar.h/1.1/Wed Apr 29 08:32:01 2015//Tnetbsd-10
D