[posted on axp-list yesterday; I already have some success reports]

- ev6: missing local label which causes oopses in several places.
  BTW, I was quite surprised that `as' allows such things
  (I guess it shouldn't):

	br	1f
	...
  $foo:
	...
  1:

- ev5: t12 instead of t10 - corruption in ISO readdir, probably other
  nastiness.

Also, minor cleanups:
- move the label in $unaligned, this should save a cycle or two;
- replace redundant `mskqh' with a nop (it doesn't save any cycles though);
- fix comment: t12 _is_ touched.

Applies to both 2.4 and 2.5.

Ivan.