merge rev 1.29.2.6:

Fix really stupid bug in REP SCAS<sz>.

Also (head only) add a bunch of asserts to guard against use of
seg override prefixes in conjunction with string ops; these are
not yet implemented.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1188 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed