mips: implement Iop_8Uto64 in iselInt64Expr

Iop_8Uto64 was missing in iselInt64Expr.
The change should resolve Bugzilla #319505.


git-svn-id: svn://svn.valgrind.org/vex/trunk@2729 8f6e269a-dfd6-0310-a8e1-e2731360e62c
Add support for
(T1) STRBT reg+#imm8
(T1) STRHT reg+#imm8
(T1) LDRBT reg+#imm8
(T1) LDRSBT reg+#imm8
(T1) PLI reg+#imm12
(T2) PLI reg-#imm8
(T3) PLI PC+/-#imm12

Fixes: 319858 319932 320083 321693 321148

(Vasily, w.golubev@mail.ru)



git-svn-id: svn://svn.valgrind.org/vex/trunk@2730 8f6e269a-dfd6-0310-a8e1-e2731360e62c

Implement the following instructions, in both ARM and Thumb
encodings:
  SSAX SXTAB16 SHASX SHSAX SHSUB16 SHSUB8
  UASX USAX UQADD16 UQASX UQSAX UHASX UHSAX REVSH

Fixes
  321363 321364 321466 321467 321468 321619 321704
  321620 321621 321692 321694 321696 321697 321703

(Vasily, w.golubev@mail.ru)



git-svn-id: svn://svn.valgrind.org/vex/trunk@2731 8f6e269a-dfd6-0310-a8e1-e2731360e62c