Changeset 100 for trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Return_Address_Stack/src/Return_Address_Stack_genMealy_predict.cpp

Timestamp:

Jan 8, 2009, 2:06:27 PM (15 years ago)

Author:

rosiere

Message:

1) Bug fix (Operation, Instruction)
2) Modif Return Address Stack
3) Add Soft Test
4) Add Soc Test

Location:

trunk

Files:

• . (modified) (1 prop)
• IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Return_Address_Stack/src/Return_Address_Stack_genMealy_predict.cpp (modified) (4 diffs)

trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Return_Address_Stack/src/Return_Address_Stack_genMealy_predict.cpp

@@ -22 +22 @@
   void Return_Address_Stack::genMealy_predict (void)
   {
-    log_printf(FUNC,Return_Address_Stack,FUNCTION,"Begin");
+    log_begin(Return_Address_Stack,FUNCTION);
+    log_function(Return_Address_Stack,FUNCTION,_name.c_str());
 
 #ifdef DEBUG_TEST
+    // just to test if have many transaction on a same context
     bool context_valid [_param->_nb_context];
     for (uint32_t i=0; i<_param->_nb_context; i++)
@@ -32 +34 @@
     for (uint32_t i=0; i<_param->_nb_inst_predict; i++)
       {
+        // Read context number
         Tcontext_t context = (_param->_have_port_context_id)?PORT_READ(in_PREDICT_CONTEXT_ID [i]):0;
-
+        
 #ifdef DEBUG_TEST
         if (PORT_READ(in_PREDICT_VAL [i]))
@@ -42 +45 @@
           }
 #endif
-
+        
+        // Get top
         Tptr_t     top  = reg_PREDICT_TOP[context];
         Tcontrol_t push = PORT_READ(in_PREDICT_PUSH [i]);
 
-        // if push : value is hit
-        // if pop  : val and not miss
-        internal_PREDICT_HIT [i] = (push or (reg_stack[context][top]._val and not reg_stack[context][top]._miss and (reg_PREDICT_NB_ELT[context]>0)));
+        // Hit :
+        //   * if push : value is hit
+        //   * if pop  : no empty
+        internal_PREDICT_HIT [i] = (push or (reg_PREDICT_NB_ELT[context]>0));
+
         PORT_WRITE(out_PREDICT_HIT         [i], internal_PREDICT_HIT [i]);
 
         // if pop  : address_pop   = stack [top]
-        // if push : stock [top+1] = address_push; also stock [top+1] is erase ! give the old value at the update table
+        // if push : stock [top+1] = address_push; also stack [top+1] is erase ! save the old value in the update table
         if (push)
           top = (top+1)%_param->_size_queue[context];
@@ -60 +66 @@
       }
 
-    log_printf(FUNC,Return_Address_Stack,FUNCTION,"End");
+    log_end(Return_Address_Stack,FUNCTION);
   };