[Avida-SVN] r2797 - development/source/cpu

[jbarrick at myxo.css.msu.edu]

Author: jbarrick
Date: 2008-09-27 13:38:59 -0400 (Sat, 27 Sep 2008)
New Revision: 2797

Modified:
   development/source/cpu/cHardwareCPU.cc
Log:
Instructions that fail (due to prob_fail) are flagged as executed so that high failure organisms can still meet division conditions (cHardwareCPU only).

Added CommandAnalyzeRedundancyByInstFailure

Tests an organism at a range of different probabilities of instruction failure, and outputs the fraction of the time that they maintain their current fitness.

Skeleton for cAnalyze::FindLastCommonAncestor

Modified: development/source/cpu/cHardwareCPU.cc
===================================================================
--- development/source/cpu/cHardwareCPU.cc	2008-09-26 17:46:00 UTC (rev 2796)
+++ development/source/cpu/cHardwareCPU.cc	2008-09-27 17:38:59 UTC (rev 2797)
@@ -676,6 +676,12 @@
         exec = !( ctx.GetRandom().P(m_inst_set->GetProbFail(cur_inst)) );
       }
       
+      // Flag instruction as executed even if it failed (moved from SingleProcess_ExecuteInst)
+      // this allows division conditions to be met even if most instruction executions failed. @JEB
+      
+      // Mark the instruction as executed
+      IP().SetFlagExecuted();
+      
       // Add to the promoter inst executed count before executing the inst (in case it is a terminator)
       if (m_promoters_enabled) m_threads[m_cur_thread].IncPromoterInstExecuted();
 
@@ -731,10 +737,6 @@
   // Get a pointer to the corresponding method...
   int inst_idx = m_inst_set->GetLibFunctionIndex(actual_inst);
   
-  // Mark the instruction as executed
-  IP().SetFlagExecuted();
-	
-  
 #if INSTRUCTION_COUNT
   // instruction execution count incremented
   organism->GetPhenotype().IncCurInstCount(actual_inst.GetOp());