$NetBSD: version,v 1.6 2011/01/02 05:30:11 tsutsui Exp $

1.1:	Initial bootst (from Dale Rahn)
1.2:	Update based on sun3 tapeboot (by Chuck Cranor)
1.3:	Support verbose/quiet boot.
1.4:	loadfile() update:  ELF symbols no longer need backward seeks.
1.5:	loadfile() update to avoid backwards seeks for ELF Program Headers.
1.6:	hackprom_diskrd() needs loads up to 3MB from tape for current kernels.
1.7:	switched to using MI libsa and libkern