Get O3 CPU mostly working in full system, and fix an FP bug that showed up.

It still does not yet handle retries.

src/cpu/base_dyn_inst.hh:
    Get working in full-system mode and fix some FP bugs.
src/cpu/checker/cpu.cc:
src/cpu/checker/cpu.hh:
src/cpu/checker/thread_context.hh:
src/cpu/o3/alpha_cpu.hh:
src/cpu/o3/alpha_cpu_impl.hh:
src/cpu/o3/commit_impl.hh:
src/cpu/o3/cpu.cc:
src/cpu/o3/cpu.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/thread_state.hh:
src/cpu/ozone/cpu.hh:
src/cpu/ozone/thread_state.hh:
src/cpu/thread_state.hh:
    Get working in full system.
src/cpu/checker/o3_cpu_builder.cc:
    Checker does not take a MemObject as a simobj parameter.
src/cpu/o3/alpha_dyn_inst.hh:
    Fix up float regs.
src/cpu/o3/regfile.hh:
    Fix up an fp error, print out more useful output messages.

--HG--
extra : convert_revision : d7cc152a051c697f18b7ee9e14050fbf3ffa5966

src/cpu/o3/commit_impl.hh

@@ -907,7 +907,7 @@ DefaultCommit<Impl>::commitInsts()
                                !thread[tid]->trapPending);
                     oldpc = PC[tid];
                     cpu->system->pcEventQueue.service(
-                        thread[tid]->getXCProxy());
+                        thread[tid]->getTC());
                     count++;
                 } while (oldpc != PC[tid]);
                 if (count > 1) {