Fix up microcode support.

src/arch/sparc/isa/formats/blockmem.isa:
    Several small and medium bug fixes.
src/cpu/simple/base.cc:
    Fixed a few compiler errors and made sure the next micro pc is set to 1 to prevent the first microop from executing twice. Also fixed a fetching bug.
src/cpu/thread_state.cc:
    Made sure the microPC and nextMicroPC are initialized properly.

--HG--
extra : convert_revision : a0fc8aa18d1ade916f17c557181a793c6108a8af

src/cpu/thread_state.cc

@@ -42,13 +42,13 @@
 ThreadState::ThreadState(int _cpuId, int _tid)
     : cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
       profile(NULL), profileNode(NULL), profilePC(0), quiesceEvent(NULL),
-      funcExeInst(0), storeCondFailures(0)
+      microPC(0), nextMicroPC(1), funcExeInst(0), storeCondFailures(0)
 #else
 ThreadState::ThreadState(int _cpuId, int _tid, Process *_process,
                          short _asid, MemObject *mem)
     : cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
       process(_process), asid(_asid),
-      funcExeInst(0), storeCondFailures(0)
+      microPC(0), nextMicroPC(1), funcExeInst(0), storeCondFailures(0)
 #endif
 {
     numInst = 0;