X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/blast.git/blobdiff_plain/43fd94117de66d533ef9e58b2de85daa244da309..14cd6d834ab531525a51c6a6992583b3e9143e02:/AbstractInterface.cpp?ds=inline

diff --git a/AbstractInterface.cpp b/AbstractInterface.cpp
index e651f58..39e672d 100644
--- a/AbstractInterface.cpp
+++ b/AbstractInterface.cpp
@@ -1,6 +1,7 @@
 #include "AbstractInterface.h"
 #include "BlockParameterPort.h"
 #include "AbstractBlock.h"
+#include "Parameters.h"
 
 AbstractInterface::AbstractInterface(AbstractBlock* _owner) {
 
@@ -10,26 +11,36 @@ AbstractInterface::AbstractInterface(AbstractBlock* _owner) {
   direction = Input;
   purpose = Data;  
   type = Boolean;
+  endianess = LittleEndian;
+  associatedIface = NULL;
 
 }
 
-AbstractInterface::AbstractInterface(AbstractBlock* _owner, const QString& _name, const QString& _type, const QString& _width, int _direction, int _purpose) {
+AbstractInterface::AbstractInterface(AbstractBlock* _owner, const QString& _name, int _direction, int _purpose, const QString& _type, const QString& _width, int _endianess) {
 
   owner = _owner;  
-  name = _name;
+  name = Parameters::normalizeName(_name);
   width = _width;
   direction = _direction;
   purpose = _purpose;
   type = typeFromString(_type);
+  endianess = _endianess;
+  associatedIface = NULL;
 }
 
 AbstractInterface::AbstractInterface(AbstractInterface* other) {
   owner = NULL;
-  name = other->name;
+  name = Parameters::normalizeName(other->name);
   type = other->type;
   width = other->width;
   direction = other->direction;
   purpose = other->purpose;
+  endianess = LittleEndian;
+  associatedIface = NULL;
+}
+
+void AbstractInterface::setName(const QString& _name) {
+  name = Parameters::normalizeName(_name);
 }
 
 AbstractInterface::~AbstractInterface() {
@@ -48,23 +59,115 @@ bool AbstractInterface::isGroupInterface() {
   return false;
 }
 
-QString AbstractInterface::getPurposeString() {
-    QString str;
-    switch(purpose){
-        case AbstractInterface::Data:
-            str = QString("data");
-            break;
-        case AbstractInterface::Clock:
-            str = QString("clock");
-            break;
-        case AbstractInterface::Reset:
-            str = QString("reset");
-            break;
-        case AbstractInterface::Wishbone:
-            str = QString("wishbone");
-            break;
+int AbstractInterface::getWidth() {
+
+  bool ok;
+  int w = -1;
+
+  QString expr = width;
+
+  /* CAUTION :
+
+     Since VHDL allows to write std_logic_vector(O downto 0)
+     which is different from std_logic, we have to differentiate
+     a size of 1 that is really a boolean and thus a std_logic, from
+     a std_logic_vector of size 1.
+
+     For this reason, if it is boolean, 0 is returned instead of 1.
+   */
+  if (type == Boolean) {
+    return 0;
+  }
+  else if (type == Natural) {
+    w = width.toInt(&ok);
+    if (!ok) return -1;
+  }
+  else if (type == Expression) {
+
+    QList<BlockParameter*> listGenerics = owner->getGenericParameters();
+    QList<BlockParameter*> listUsers = owner->getUserParameters();
+    QList<BlockParameter*> listPorts = owner->getPortParameters();
+
+    foreach(BlockParameter* p, listUsers) {
+      QString var = "$";
+      var += p->getName();
+      if (width.contains(var)) {
+        int tmp = p->getValue().toInt(&ok);
+        if (!ok) return -1; // user parameter cannot be converted to an int
+        expr.replace(var,p->getValue().toString());
+      }
     }
-    return str;
+    foreach(BlockParameter* p, listPorts) {
+      QString var = "$";
+      var += p->getName();
+      if (width.contains(var)) {
+        expr.replace(var,p->toVHDL(0,0));
+      }
+    }
+    foreach(BlockParameter* p, listGenerics) {
+      QString var = "$";
+      var += p->getName();
+      if (width.contains(var)) {
+        int tmp = p->getValue().toInt(&ok);
+        if (!ok) return -1;
+        QString s="";
+        s.setNum(tmp);
+        expr.replace(var,s);
+      }
+    }
+    // now evaluate the whole expression
+    ArithmeticEvaluator evaluator;
+
+    try {
+      evaluator.setVariableMarkers("$");
+      evaluator.setExpression(expr);
+      w = (int)(evaluator.evaluate());
+      cout << "iface size :" << w << endl;
+    }
+    catch(int e) {
+      cerr << "invalid expression in size of interface " << qPrintable(name) << " at character " << e << endl;
+      w = -1;
+    }
+  }
+  return w;
+}
+
+QString AbstractInterface::getEndianessString() {
+  QString str="unknown";
+  switch(endianess){
+  case AbstractInterface::LittleEndian:
+    str = QString("little");
+    break;
+  case AbstractInterface::BigEndian:
+    str = QString("big");
+    break;
+  }
+  return str;
+}
+
+QString AbstractInterface::getPurposeString() {
+  QString str;
+  switch(purpose){
+  case AbstractInterface::AnyPurpose:
+    str = QString("any");
+    break;
+  case AbstractInterface::Data:
+    str = QString("data");
+    break;
+  case AbstractInterface::Control:
+    str = QString("control");
+    break;
+  case AbstractInterface::Clock:
+    str = QString("clock");
+    break;
+  case AbstractInterface::Reset:
+    str = QString("reset");
+    break;
+  case AbstractInterface::Wishbone:
+    str = QString("wishbone");
+    break;
+  }
+  return str;
 }
 
 QString AbstractInterface::getDirectionString() {
@@ -126,14 +229,29 @@ void AbstractInterface::setDirection(int _direction) {
   }
 }
 
+bool AbstractInterface::setAssociatedIface(AbstractInterface* iface) {
+  if (purpose != Control) return false;
+  if (iface->purpose != Data) return false;
+  associatedIface = iface;
+  iface->associatedIface = this;  
+  return true;
+}
+
 
 int AbstractInterface::getIntDirection(QString str) {
     if(str == "input") return Input;
     if(str == "output") return Output;
-    if(str == "inOut") return InOut;
+    if(str == "inout") return InOut;
     return -1;
 }
 
+int AbstractInterface::getIntPurpose(QString str) {
+    if(str == "data") return Data;
+    else if(str == "clock") return Clock;
+    else if(str == "reset") return Reset;
+    else if(str == "wishbone") return Wishbone;
+    return -1;
+}
 
 QString AbstractInterface::getTypeString() {
 
@@ -146,12 +264,15 @@ QString AbstractInterface::getTypeString() {
   else if (type == Expression) {
     return "expression";
   }
+  else if (type == Inherited) {
+    return "inherited";
+  }
   return "invalid_type";
 }
 
 int AbstractInterface::typeFromString(const QString &_type) {
 
-  int ret;
+  int ret = Expression; // default type
   if (_type == "expression") {
     ret = Expression;
   }
@@ -161,80 +282,156 @@ int AbstractInterface::typeFromString(const QString &_type) {
   else if (_type == "natural") {
     ret = Natural;
   }
+  else if (_type == "inherited") {
+    ret = Inherited;
+  }
   return ret;
 }
 
 QString AbstractInterface::toVHDL(int context, int flags) throw(Exception) {
 
+
   if (isReferenceInterface()) throw(Exception(IFACE_INVALID_TYPE));
 
-  QString msb = width;
+  int w;
+  QString wStr = "";
   QString ret="";
+
   bool ok;
-  if ((context == BlockParameter::Entity) || (context == BlockParameter::Component)) {
+  //cout << "iface " << qPrintable(name) << " must be evaluated to vhdl :" << qPrintable(width) << " with type = " << qPrintable(getTypeString()) << endl;
 
-    QString formatBool = "%1 : %2 std_logic";
-    QString formatVector = "%1 : %2 std_logic_vector(%3 downto %4)";
-    if ((flags & BlockParameter::NoComma) == 0) {
-      formatBool.append(";");
-      formatVector.append(";");
-    }
-    QString orientation="";
-    if (direction == Input) {
-      orientation = "in";
-    }
-    else if (direction == Output) {
-      orientation = "out";
+  if (context == Instance) {
+    if (direction == Output) {
+      ret = "from_"+owner->getName()+"_"+name;
     }
-    else {
-      orientation = "inout";
-    }
-    if (type == Boolean) {
-      ret = formatVector.arg(name).arg(orientation);
+    else if (direction == InOut) {
+      ret = "fromto_"+owner->getName()+"_"+name;
     }
-    else if (type == Natural) {
-      int w = width.toInt(&ok);
+    return ret;
+  }
+
+  // create the width part
+  QString widthStr = "";
+  if (type == Boolean) {
+    widthStr = "std_logic";
+  }
+  else {
+    QString formatWidth = "";
+    if (endianess == LittleEndian) formatWidth = "std_logic_vector(%1 downto %2)";
+    else formatWidth = "std_logic_vector(%2 to %1)";
+
+    if (type == Natural) {
+      w = width.toInt(&ok);
       if (!ok) {
         throw(Exception(INVALID_VALUE));
       }
       else {
         w -= 1;
-        ret = formatVector.arg(name).arg(orientation).arg(w).arg("0");
+        wStr.setNum(w);
+        widthStr = formatWidth.arg(wStr).arg(0);
       }
     }
     else if (type == Expression) {
-      /* must check the following conditions :
-           - if it contains user/port parameters : must evaluate their numeric value
-           - if it contains generic parameters : just remove the $ -> the expression is not arithmetically evaluated.
-      */
-      QList<BlockParameter*> listGenerics = owner->getGenericParameters();
-      QList<BlockParameter*> listUsers = owner->getUserParameters();
-      QList<BlockParameter*> listPorts = owner->getPortParameters();
-      foreach(BlockParameter* p, listUsers) {
-        QString var = "$";
-        var.append(p->getName());
-        if (width.contains(var)) {
-          int w = p->getValue().toInt(&ok);
-          if (!ok) throw(Exception(INVALID_VALUE));
-          msb.replace(var,p->getValue().toString());
+
+      // NB: if for signal, must retrieve the real size, not the one with generics
+      if (context == Signal) {
+        w = getWidth();
+        if (w == -1) throw(Exception(INVALID_VALUE));
+        if (w == 0) {
+          widthStr = "std_logic";
+        }
+        else {
+          w--;
+          wStr.setNum(w);
+          widthStr = formatWidth.arg(wStr).arg(0);
         }
       }
-      foreach(BlockParameter* p, listPorts) {
-        QString var = "$";
-        var.append(p->getName());
-        if (width.contains(var)) {
-          BlockParameterPort* pp = (BlockParameterPort*)p;
-          AbstractInterface* iface = owner->getIfaceFromName(pp->getIfaceName());
-
-          int w = p->getValue().toInt(&ok);
-          if (!ok) throw(Exception(INVALID_VALUE));
-          msb.replace(var,p->getValue().toString());
+      else {
+
+        /* must check the following conditions :
+               - if it contains user/port parameters : must evaluate their numeric value
+               - if it contains generic parameters : just remove the $ -> the expression is not arithmetically evaluated.
+          */
+        wStr = width;
+        QList<BlockParameter*> listGenerics = owner->getGenericParameters();
+        QList<BlockParameter*> listUsers = owner->getUserParameters();
+        QList<BlockParameter*> listPorts = owner->getPortParameters();
+        foreach(BlockParameter* p, listUsers) {
+          QString var = "$";
+          var += p->getName();
+          if (width.contains(var)) {
+            w = p->getValue().toInt(&ok);
+            if (!ok) throw(Exception(INVALID_VALUE));
+            wStr.replace(var,p->getValue().toString());
+          }
         }
+        foreach(BlockParameter* p, listPorts) {
+          QString var = "$";
+          var += p->getName();
+          if (width.contains(var)) {
+            wStr.replace(var,p->toVHDL(0,0));
+          }
+        }
+        foreach(BlockParameter* p, listGenerics) {
+          QString var = "$";
+          var += p->getName();
+          if (width.contains(var)) {
+            wStr.replace(var,p->getName());
+          }
+        }
+        wStr += "-1";
+        widthStr = formatWidth.arg(wStr).arg(0);
       }
+    }
+    else if (type == Inherited) {
+      w = getWidth();
+      if (w == -1) throw(Exception(INVALID_VALUE));
+      if (w == 0) {
+        widthStr = "std_logic";
+      }
+      else {
+        w--;
+        wStr.setNum(w);
+        widthStr = formatWidth.arg(wStr).arg(0);
+      }
+    }
+  }
+
+  if ((flags & NoComma) == 0) {
+    widthStr.append(";");
+  }
+
+  // generate for an Entity or Component port
+  if ((context == Entity) || (context == Component)) {
+
+    QString formatPort = "%1 : %2 ";
+
+    QString orientation="";
+    if (direction == Input) {
+      orientation = "in";
+    }
+    else if (direction == Output) {
+      orientation = "out";
+    }
+    else {
+      orientation = "inout";
+    }
 
-      ret = formatVector.arg(name).arg(orientation).arg("toto").arg("0");
+    ret = formatPort.arg(name).arg(orientation);
+    ret += widthStr;
+  }
+  else if (context == Signal) {
+    if (direction == Output) {
+      ret = "from_"+owner->getName()+"_"+name+" : "+widthStr;
+    }
+    else if (direction == InOut) {
+      ret = "fromto_"+owner->getName()+"_"+name+" : "+widthStr;
+    }
+    else if (direction == Input) {
+      ret = owner->getName()+"_"+name+" : "+widthStr;
     }
   }
+
   return ret;
 }