Changeset 118 for trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Execute_loop/Execute_loop/Multi_Execute_unit/Execute_unit/Functionnal_unit/src/Functionnal_unit_genMealy.cpp

Timestamp:

May 21, 2009, 12:01:32 AM (15 years ago)

Author:

rosiere

Message:

1) Stat List : scan all queue to find free register
2) Write_queue : test "genMealy" add bypass [0]
3) Functionnal_unit : add const parameters to add or not the pipeline_in
4) Load Store Unit : if load make an exception, free nb_check
5) Debug, change test to add model

File:

• trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Execute_loop/Execute_loop/Multi_Execute_unit/Execute_unit/Functionnal_unit/src/Functionnal_unit_genMealy.cpp (modified) (1 diff)

trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Execute_loop/Execute_loop/Multi_Execute_unit/Execute_unit/Functionnal_unit/src/Functionnal_unit_genMealy.cpp

@@ -29 +29 @@
       {
         {
+          // Can out if : have an instruction and is finish (latence == 0)
           internal_EXECUTE_OUT_VAL = (reg_BUSY_OUT and (_execute_operation_out->_timing._latence == 0));
           
-          PORT_WRITE(out_EXECUTE_OUT_VAL          , internal_EXECUTE_OUT_VAL);
+          PORT_WRITE(out_EXECUTE_OUT_VAL, internal_EXECUTE_OUT_VAL);
         }
         
         {
+          // Can accept an instruction if :
+          //  * pipeline in is not busy (not previous instruction)
+          //  * pipeline in is     busy (    previous instruction) and the instruction go to pipeline out
+          if (_param->_have_pipeline_in)
+            {          
           internal_EXECUTE_IN_ACK = (not reg_BUSY_IN or
                                      (reg_BUSY_IN and (not reg_BUSY_OUT or 
                                                        (internal_EXECUTE_OUT_VAL and PORT_READ(in_EXECUTE_OUT_ACK)))));
-          
-          PORT_WRITE(out_EXECUTE_IN_ACK           , internal_EXECUTE_IN_ACK);
+            }
+          else
+            {
+          internal_EXECUTE_IN_ACK = (not reg_BUSY_OUT or 
+                                     (internal_EXECUTE_OUT_VAL and PORT_READ(in_EXECUTE_OUT_ACK)));
+            }
+
+          PORT_WRITE(out_EXECUTE_IN_ACK , internal_EXECUTE_IN_ACK);
         }
       }