forked from Imagelibrary/rtems
* mvme5500/start/start.S, shared/start/start.S, shared/startup/bspstart.c: moved assembly code to C; setdbat now supports high bats on 7450 CPUs; added argument checking to setdbat; added getdbat; moved early initialization code (clear_bats) from BSP to libcpu (CPU_clear_bats_early)