diff -r 41cb5b80416e -r e1f0ebd2d9ec stage4/generate_c/generate_c_sfc.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/stage4/generate_c/generate_c_sfc.cc	Wed Oct 24 17:39:51 2007 +0200
@@ -0,0 +1,736 @@
+/*
+ * (c) 2007 Mario de Sousa, Laurent Bessard
+ *
+ * Offered to the public under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * This code is made available on the understanding that it will not be
+ * used in safety-critical situations without a full and competent review.
+ */
+
+/*
+ * An IEC 61131-3 IL and ST compiler.
+ *
+ * Based on the
+ * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
+ *
+ */
+
+
+/*
+ * Conversion of sfc networks (i.e. SFC code).
+ *
+ * This is part of the 4th stage that generates
+ * a c++ source program equivalent to the SFC, IL and ST
+ * code.
+ */
+
+#include <list>
+
+typedef struct
+{
+  transition_c *symbol;
+  int priority;
+  int index;
+} TRANSITION;
+
+
+
+
+
+/***********************************************************************/
+/***********************************************************************/
+/***********************************************************************/
+/***********************************************************************/
+
+class generate_c_sfc_elements_c: public generate_c_base_c {
+  
+  public:
+    typedef enum {
+      transitionlist_sg,
+      transitiontest_sg,
+      stepset_sg,
+      stepreset_sg,
+      actionassociation_sg,
+      actionbody_sg
+    } sfcgeneration_t;
+
+  private:
+    generate_c_il_c *generate_c_il;
+    generate_c_st_c *generate_c_st;
+    generate_c_SFC_IL_ST_c *generate_c_code;
+    search_var_instance_decl_c *search_var_instance_decl;
+    
+    int transition_number;
+    std::list<TRANSITION> transition_list;
+    
+    symbol_c *current_step;
+    symbol_c *current_action;
+
+    sfcgeneration_t wanted_sfcgeneration;
+    
+  public:
+    generate_c_sfc_elements_c(stage4out_c *s4o_ptr, symbol_c *scope, const char *variable_prefix = NULL)
+    : generate_c_base_c(s4o_ptr) {
+      generate_c_il = new generate_c_il_c(s4o_ptr, scope, variable_prefix);
+      generate_c_st = new generate_c_st_c(s4o_ptr, scope, variable_prefix);
+      generate_c_code = new generate_c_SFC_IL_ST_c(s4o_ptr, scope, variable_prefix);
+      search_var_instance_decl = new search_var_instance_decl_c(scope);
+      this->set_variable_prefix(variable_prefix);
+    }
+    
+    ~generate_c_sfc_elements_c(void) {
+      delete generate_c_il;
+      delete generate_c_st;
+      delete generate_c_code;
+      delete search_var_instance_decl;
+    }
+
+    void reset_transition_number(void) {transition_number = 0;}
+
+    void generate(symbol_c *symbol, sfcgeneration_t generation_type) {
+      wanted_sfcgeneration = generation_type;
+      switch (wanted_sfcgeneration) {
+        case transitiontest_sg:
+          {
+            std::list<TRANSITION>::iterator pt;
+            for(pt = transition_list.begin(); pt != transition_list.end(); pt++) {
+              transition_number = pt->index;
+              pt->symbol->accept(*this);
+            }
+          }
+          break;
+        default:
+          symbol->accept(*this);
+          break;
+      }
+    }
+
+    void print_step_argument(symbol_c *step_name, const char* argument) {
+      print_variable_prefix();
+      s4o.print("step_list[");
+      s4o.print(SFC_STEP_ACTION_PREFIX);
+      step_name->accept(*this);
+      s4o.print("].");
+      s4o.print(argument);
+    }
+
+    void print_action_argument(symbol_c *action_name, const char* argument) {
+      print_variable_prefix();
+      s4o.print("action_list[");
+      s4o.print(SFC_STEP_ACTION_PREFIX);
+      action_name->accept(*this);
+      s4o.print("].");
+      s4o.print(argument);
+    }      
+
+    void print_transition_number(void) {
+      char str[10];
+      sprintf(str, "%d", transition_number);
+      s4o.print(str);
+    }
+
+    void print_reset_step(symbol_c *step_name) {
+      s4o.print(s4o.indent_spaces);
+      print_step_argument(step_name, "state");
+      s4o.print(" = 0;\n");
+    }
+    
+    void print_set_step(symbol_c *step_name) {
+      s4o.print(s4o.indent_spaces);
+      print_step_argument(step_name, "state");
+      s4o.print(" = 1;\n" + s4o.indent_spaces);
+      print_step_argument(step_name, "elapsed_time");
+      s4o.print(" = __time_to_timespec(1, 0, 0, 0, 0, 0);\n");
+    }
+    
+    bool is_variable(symbol_c *symbol) {
+      /* we try to find the variable instance declaration, to determine its type... */
+      symbol_c *var_decl = search_var_instance_decl->get_decl(symbol);
+      
+      return var_decl != NULL;
+    }
+
+/*********************************************/
+/* B.1.6  Sequential function chart elements */
+/*********************************************/
+    
+    void *visit(initial_step_c *symbol) {
+      switch (wanted_sfcgeneration) {
+        case actionassociation_sg:
+          if (((list_c*)symbol->action_association_list)->n > 0) {
+            s4o.print(s4o.indent_spaces + "// ");
+            symbol->step_name->accept(*this);
+            s4o.print(" action associations\n");
+            current_step = symbol->step_name;
+            s4o.print(s4o.indent_spaces + "{\n");
+            s4o.indent_right();
+            s4o.print(s4o.indent_spaces + "char activated = ");
+            print_step_argument(current_step, "state");
+            s4o.print(" && !");
+            print_step_argument(current_step, "prev_state");
+            s4o.print(";\n");
+            s4o.print(s4o.indent_spaces + "char desactivated = !");
+            print_step_argument(current_step, "state");
+            s4o.print(" && ");
+            print_step_argument(current_step, "prev_state");
+            s4o.print(";\n");
+            s4o.print(s4o.indent_spaces + "char active = ");
+            print_step_argument(current_step, "state");
+            s4o.print(";\n");
+            symbol->action_association_list->accept(*this);
+            s4o.indent_left();
+            s4o.print(s4o.indent_spaces + "}\n\n");
+          }
+          break;
+        default:
+          break;
+      }
+      return NULL;
+    }
+    
+    void *visit(step_c *symbol) {
+      switch (wanted_sfcgeneration) {
+        case actionassociation_sg:
+          if (((list_c*)symbol->action_association_list)->n > 0) {
+            s4o.print(s4o.indent_spaces + "// ");
+            symbol->step_name->accept(*this);
+            s4o.print(" action associations\n");
+            current_step = symbol->step_name;
+            s4o.print(s4o.indent_spaces + "{\n");
+            s4o.indent_right();
+            s4o.print(s4o.indent_spaces + "char activated = ");
+            print_step_argument(current_step, "state");
+            s4o.print(" && !");
+            print_step_argument(current_step, "prev_state");
+            s4o.print(";\n");
+            s4o.print(s4o.indent_spaces + "char desactivated = !");
+            print_step_argument(current_step, "state");
+            s4o.print(" && ");
+            print_step_argument(current_step, "prev_state");
+            s4o.print(";\n");
+            s4o.print(s4o.indent_spaces + "char active = ");
+            print_step_argument(current_step, "state");
+            s4o.print(";\n");
+            symbol->action_association_list->accept(*this);
+            s4o.indent_left();
+            s4o.print(s4o.indent_spaces + "}\n\n");
+          }
+          break;
+        default:
+          break;
+      }
+      return NULL;
+    }
+
+    void *visit(transition_c *symbol) {
+      switch (wanted_sfcgeneration) {
+        case transitionlist_sg:
+          {
+            TRANSITION *transition;
+            transition = new TRANSITION;
+            transition->symbol = symbol;
+            transition->index = transition_number;
+            if (symbol->integer != NULL) {
+              transition->priority = atoi(((token_c *)symbol->integer)->value);
+              std::list<TRANSITION>::iterator pt = transition_list.begin();
+              while (pt != transition_list.end() && pt->priority <= transition->priority) {
+                pt++;
+              } 
+              transition_list.insert(pt, *transition);
+            } 
+            else {
+              transition->priority = 0;
+              transition_list.push_back(*transition);
+            }
+            transition_number++;
+          }
+          break;
+        case transitiontest_sg:
+          s4o.print(s4o.indent_spaces + "if (");
+          symbol->from_steps->accept(*this);
+          s4o.print(") {\n");
+          s4o.indent_right();
+          
+          // Calculate transition value
+          if (symbol->transition_condition_il != NULL) {
+            generate_c_il->declare_backup_variable();
+            s4o.print(s4o.indent_spaces);
+            symbol->transition_condition_il->accept(*generate_c_il);
+            print_variable_prefix();
+            s4o.print("transition_list[");
+            print_transition_number();
+            s4o.print("] = ");
+            generate_c_il->print_backup_variable();
+            s4o.print(";\n");
+          }
+          if (symbol->transition_condition_st != NULL) {
+            s4o.print(s4o.indent_spaces);
+            print_variable_prefix();
+            s4o.print("transition_list[");
+            print_transition_number();
+            s4o.print("] = ");
+            symbol->transition_condition_st->accept(*generate_c_st);
+            s4o.print(";\n");
+          }
+          if (symbol->integer != NULL) {
+            s4o.print(s4o.indent_spaces + "if (");
+            print_variable_prefix();
+            s4o.print("transition_list[");
+            print_transition_number();
+            s4o.print("]) {\n");
+            s4o.indent_right();
+            wanted_sfcgeneration = stepreset_sg;
+            symbol->from_steps->accept(*this);
+            wanted_sfcgeneration = transitiontest_sg;
+            s4o.indent_left();
+            s4o.print(s4o.indent_spaces + "}\n");
+          }
+          s4o.indent_left();
+          s4o.print(s4o.indent_spaces + "}\n" + s4o.indent_spaces + "else {\n");
+          s4o.indent_right();
+          s4o.print(s4o.indent_spaces);
+          print_variable_prefix();
+          s4o.print("transition_list[");
+          print_transition_number();
+          s4o.print("] = 0;\n");
+          s4o.indent_left();
+          s4o.print(s4o.indent_spaces + "}\n");
+          break;
+        case stepset_sg:
+          s4o.print(s4o.indent_spaces + "if (");
+          print_variable_prefix();
+          s4o.print("transition_list[");
+          print_transition_number();
+          s4o.print("]) {\n");
+          s4o.indent_right();
+          symbol->to_steps->accept(*this);
+          s4o.indent_left();
+          s4o.print(s4o.indent_spaces + "}\n");
+          transition_number++;
+          break;
+        case stepreset_sg:
+          if (symbol->integer == NULL) {
+            s4o.print(s4o.indent_spaces + "if (");
+            print_variable_prefix();
+            s4o.print("transition_list[");
+            print_transition_number();
+            s4o.print("]) {\n");
+            s4o.indent_right();
+            symbol->from_steps->accept(*this);
+            s4o.indent_left();
+            s4o.print(s4o.indent_spaces + "}\n");
+          }
+          transition_number++;
+          break;
+        default:
+          break;
+      }
+      return NULL;
+    }
+    
+    void *visit(action_c *symbol) {
+      switch (wanted_sfcgeneration) {
+        case actionbody_sg:
+          s4o.print(s4o.indent_spaces + "if(");
+          print_variable_prefix();
+          s4o.print("action_list[");
+          s4o.print(SFC_STEP_ACTION_PREFIX);
+          symbol->action_name->accept(*this);
+          s4o.print("].state) {");
+          s4o.indent_right();
+          
+          // generate action code
+          symbol->function_block_body->accept(*generate_c_code);
+          
+          s4o.indent_left();
+          s4o.print(s4o.indent_spaces + "}\n\n");
+          break;
+        default:
+          break;
+      }
+      return NULL;
+    }
+
+    void *visit(steps_c *symbol) {
+      if (symbol->step_name != NULL) {
+        switch (wanted_sfcgeneration) {
+          case transitiontest_sg:
+            print_step_argument(symbol->step_name, "state");
+            break;
+          case stepset_sg:
+            print_set_step(symbol->step_name);
+            break;
+          case stepreset_sg:
+            print_reset_step(symbol->step_name);
+            break;
+          default:
+            break;
+        }
+      }
+      else if (symbol->step_name_list != NULL) {
+        symbol->step_name_list->accept(*this);
+      }  
+      return NULL;
+    }
+    
+    void *visit(step_name_list_c *symbol) {
+      switch (wanted_sfcgeneration) {
+        case transitiontest_sg:
+          for(int i = 0; i < symbol->n; i++) {
+            print_step_argument(symbol->elements[i], "state");
+            if (i < symbol->n - 1) {
+              s4o.print(" && ");
+            }
+          }
+          break;
+        case stepset_sg:
+          for(int i = 0; i < symbol->n; i++) {
+            print_set_step(symbol->elements[i]);
+          }
+          break;
+        case stepreset_sg:
+          for(int i = 0; i < symbol->n; i++) {
+            print_reset_step(symbol->elements[i]);
+          }
+          break;
+        default:
+          break;
+      }
+      return NULL;
+    }
+
+    void *visit(action_association_list_c* symbol) {
+      switch (wanted_sfcgeneration) {
+        case actionassociation_sg:
+          print_list(symbol, "", "\n", "\n");
+          break;
+        default:
+          break;
+      }
+      return NULL;
+    }
+
+    void *visit(action_association_c *symbol) {
+      switch (wanted_sfcgeneration) {
+        case actionassociation_sg:
+          if (symbol->action_qualifier != NULL) {
+            current_action = symbol->action_name;
+            symbol->action_qualifier->accept(*this);
+          }
+          else {
+            s4o.print(s4o.indent_spaces + "if (");
+            print_step_argument(current_step, "state");
+            s4o.print(") {\n");
+            s4o.indent_right();
+            s4o.print(s4o.indent_spaces);
+            print_action_argument(symbol->action_name, "state");
+            s4o.print(" = 1;\n");
+            s4o.indent_left();
+            s4o.print(s4o.indent_spaces + "}");
+          }
+          break;
+        default:
+          break;
+      }
+      return NULL;
+    }
+
+    void *visit(action_qualifier_c *symbol) {
+      switch (wanted_sfcgeneration) {
+        case actionassociation_sg:
+          {
+            char *qualifier = (char *)symbol->action_qualifier->accept(*this);
+            s4o.print(s4o.indent_spaces + "if (");
+            if (strcmp(qualifier, "N") == 0) {
+              s4o.print("active");
+            }
+            if (strcmp(qualifier, "P") == 0 || strcmp(qualifier, "SD") == 0 || 
+                strcmp(qualifier, "DS") == 0 || strcmp(qualifier, "SL") == 0 || 
+                strcmp(qualifier, "S") == 0 || strcmp(qualifier, "R") == 0) {
+              s4o.print("activated");
+            }
+            if (strcmp(qualifier, "D") == 0 || strcmp(qualifier, "L") == 0) {
+              s4o.print("active && ");
+              print_step_argument(current_step, "elapsed_time");
+              if (strcmp(qualifier, "D") == 0) {
+                s4o.print(" >= ");
+              }
+              else {
+                s4o.print(" < ");
+              }
+              symbol->action_time->accept(*this);  
+            }
+            s4o.print(") {\n");
+            s4o.indent_right();
+            s4o.print(s4o.indent_spaces);
+            if (strcmp(qualifier, "N") == 0 || strcmp(qualifier, "P") == 0 ||
+                strcmp(qualifier, "D") == 0 || strcmp(qualifier, "L") == 0) {
+              print_action_argument(current_action, "state");
+              s4o.print(" = 1;\n");  
+            }
+            if (strcmp(qualifier, "S") == 0) {
+              if (is_variable(current_action)) {
+                print_variable_prefix();
+                current_action->accept(*this);
+              }
+              else
+                print_action_argument(current_action, "set");
+              s4o.print(" = 1;\n");
+            }
+            if (strcmp(qualifier, "R") == 0) {
+              if (is_variable(current_action)) {
+                print_variable_prefix();
+                current_action->accept(*this);
+                s4o.print(" = 0;\n");
+              }
+              else {
+                print_action_argument(current_action, "reset");
+                s4o.print(" = 1;\n");
+              }
+            }
+            if (strcmp(qualifier, "SD") == 0 || strcmp(qualifier, "DS") == 0 || 
+                strcmp(qualifier, "SL") == 0) {
+              if (strcmp(qualifier, "SL") == 0) {
+                print_action_argument(current_action, "reset_remaining_time");  
+              }
+              else {
+                print_action_argument(current_action, "set_remaining_time");
+              }
+              s4o.print(" = ");
+              symbol->action_time->accept(*this);
+              s4o.print(";\n");
+            }
+            s4o.indent_left();
+            s4o.print(s4o.indent_spaces + "}");
+            if (strcmp(qualifier, "DS") == 0) {
+              s4o.print("desactivated");
+              s4o.indent_right();
+              s4o.print(s4o.indent_spaces);
+              print_action_argument(current_action, "set_remaining_time");
+              s4o.print(" = __time_to_timespec(1, 0, 0, 0, 0, 0);\n");
+            }
+          }
+          break;
+        default:
+          break;
+      }
+      return NULL;
+    }
+
+    void *visit(qualifier_c *symbol) {
+      return (void *)symbol->value;
+    }
+
+    void *visit(timed_qualifier_c *symbol) {
+      return (void *)symbol->value;
+    }
+
+}; /* generate_c_sfc_actiondecl_c */
+ 
+ 
+ 
+/***********************************************************************/
+/***********************************************************************/
+/***********************************************************************/
+/***********************************************************************/
+
+class generate_c_sfc_c: public generate_c_typedecl_c {
+  
+  private:
+    generate_c_sfc_elements_c *generate_c_sfc_elements;
+    
+  public:
+    generate_c_sfc_c(stage4out_c *s4o_ptr, symbol_c *scope, const char *variable_prefix = NULL)
+    : generate_c_typedecl_c(s4o_ptr) {
+      generate_c_sfc_elements = new generate_c_sfc_elements_c(s4o_ptr, scope, variable_prefix);
+      this->set_variable_prefix(variable_prefix);
+    }
+  
+    virtual ~generate_c_sfc_c(void) {
+      delete generate_c_sfc_elements;
+    }
+
+/*********************************************/
+/* B.1.6  Sequential function chart elements */
+/*********************************************/
+
+    void *visit(sfc_network_c *symbol) {
+      generate_c_sfc_elements->generate((symbol_c *) symbol, generate_c_sfc_elements_c::transitionlist_sg);
+      s4o.print(s4o.indent_spaces +"INT i;\n\n");
+      s4o.print(s4o.indent_spaces +"BOOL transition;\n\n");
+            
+      /* generate step initilizations */
+      s4o.print(s4o.indent_spaces + "// Steps initialisation\n");
+      s4o.print(s4o.indent_spaces + "for (i = 0; i < ");
+      print_variable_prefix();
+      s4o.print("nb_steps; i++) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("step_list[i].prev_state = ");
+      print_variable_prefix();
+      s4o.print("step_list[i].state;\n");
+      s4o.print(s4o.indent_spaces + "if (");
+      print_variable_prefix();
+      s4o.print("step_list[i].state) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("step_list[i].elapsed_time = __time_add(");
+      print_variable_prefix();
+      s4o.print("step_list[i].elapsed_time, ");
+      print_variable_prefix();
+      s4o.print("period);\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n");
+
+      /* generate action initilizations */
+      s4o.print(s4o.indent_spaces + "// Actions initialisation\n");
+      s4o.print(s4o.indent_spaces + "for (i = 0; i < ");
+      print_variable_prefix();
+      s4o.print("nb_actions; i++) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].state = 0;\n");
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].set = 0;\n");
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].reset = 0;\n");
+      s4o.print(s4o.indent_spaces + "if (");
+      s4o.print("__gt_TIME(2, ");
+      print_variable_prefix();
+      s4o.print("action_list[i].set_remaining_time, __time_to_timespec(1, 0, 0, 0, 0, 0))) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].set_remaining_time = __time_sub(");
+      print_variable_prefix();
+      s4o.print("action_list[i].set_remaining_time, ");
+      print_variable_prefix();
+      s4o.print("period);\n");
+      s4o.print(s4o.indent_spaces + "if (");
+      s4o.print("__le_TIME(2, ");
+      print_variable_prefix();
+      s4o.print("action_list[i].set_remaining_time, __time_to_timespec(1, 0, 0, 0, 0, 0))) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].set_remaining_time = __time_to_timespec(1, 0, 0, 0, 0, 0);\n");
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].set = 1;\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n");
+      s4o.print(s4o.indent_spaces + "if (");
+      s4o.print("__gt_TIME(2, ");
+      print_variable_prefix();
+      s4o.print("action_list[i].reset_remaining_time, __time_to_timespec(1, 0, 0, 0, 0, 0))) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].reset_remaining_time = __time_sub(");
+      print_variable_prefix();
+      s4o.print("action_list[i].reset_remaining_time, ");
+      print_variable_prefix();
+      s4o.print("period);\n");
+      s4o.print(s4o.indent_spaces + "if (");
+      s4o.print("__le_TIME(2, ");
+      print_variable_prefix();
+      s4o.print("action_list[i].reset_remaining_time, __time_to_timespec(1, 0, 0, 0, 0, 0))) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].reset_remaining_time = __time_to_timespec(1, 0, 0, 0, 0, 0);\n");
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].reset = 1;\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n\n");
+      
+      /* generate transition tests */
+      s4o.print(s4o.indent_spaces + "// Transitions fire test\n");
+      generate_c_sfc_elements->generate((symbol_c *) symbol, generate_c_sfc_elements_c::transitiontest_sg);
+      s4o.print("\n");
+      
+      /* generate transition reset steps */
+      s4o.print(s4o.indent_spaces + "// Transitions reset steps\n");
+      generate_c_sfc_elements->reset_transition_number();
+      generate_c_sfc_elements->generate((symbol_c *) symbol, generate_c_sfc_elements_c::stepreset_sg);
+      s4o.print("\n");
+      
+      /* generate transition set steps */
+      s4o.print(s4o.indent_spaces + "// Transitions set steps\n");
+      generate_c_sfc_elements->reset_transition_number();
+      generate_c_sfc_elements->generate((symbol_c *) symbol, generate_c_sfc_elements_c::stepset_sg);
+      s4o.print("\n");
+      
+       /* generate step association */
+      s4o.print(s4o.indent_spaces + "// Steps association\n");
+      generate_c_sfc_elements->generate((symbol_c *) symbol, generate_c_sfc_elements_c::actionassociation_sg);
+      s4o.print("\n");
+      
+      /* generate action state evaluation */
+      s4o.print(s4o.indent_spaces + "// Actions state evaluation\n");
+      s4o.print(s4o.indent_spaces + "for (i = 0; i < ");
+      print_variable_prefix();
+      s4o.print("nb_actions; i++) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces + "if (");
+      print_variable_prefix();
+      s4o.print("action_list[i].set) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].stored = 1;\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n" + s4o.indent_spaces + "if (");
+      print_variable_prefix();
+      s4o.print("action_list[i].reset) {\n");
+      s4o.indent_right();
+      s4o.print(s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].set_remaining_time = __time_to_timespec(1, 0, 0, 0, 0, 0);\n" + s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].reset_remaining_time = __time_to_timespec(1, 0, 0, 0, 0, 0);\n" + s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].stored = 0;\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n" + s4o.indent_spaces);
+      print_variable_prefix();
+      s4o.print("action_list[i].state |= ");
+      print_variable_prefix();
+      s4o.print("action_list[i].stored;\n");
+      s4o.indent_left();
+      s4o.print(s4o.indent_spaces + "}\n\n");
+      
+      /* generate action execution */
+      s4o.print(s4o.indent_spaces + "// Actions execution\n");
+      generate_c_sfc_elements->generate((symbol_c *) symbol, generate_c_sfc_elements_c::actionbody_sg);
+      s4o.print("\n");
+      
+      return NULL;
+    }
+
+    void generate(sequential_function_chart_c *sfc) {
+      sfc->accept(*this);
+    }
+
+}; /* generate_c_sfc_c */