From 566c7d715273dc7527440d96989ca5ecc4648b97 Mon Sep 17 00:00:00 2001
From: Alan Mishchenko <alanmi@berkeley.edu>
Date: Mon, 12 Nov 2012 13:57:51 -0800
Subject: Extending GIA to represent pintypes and pins.

---
 src/base/abci/abc.c    |  9 +++++-
 src/base/abci/abcTim.c | 87 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 95 insertions(+), 1 deletion(-)

(limited to 'src/base')

diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c
index 4395607d..b70ec468 100644
--- a/src/base/abci/abc.c
+++ b/src/base/abci/abc.c
@@ -9407,7 +9407,14 @@ int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv )
     if ( pNtk )
     {
         extern void Abc_NtkTestTim( Abc_Ntk_t * pNtk, int fVerbose );
-        Abc_NtkTestTim( pNtk, fVerbose );
+        extern void Abc_NtkTestPinGia( Abc_Ntk_t * pNtk, int fWhiteBoxOnly, int fVerbose );
+//        Abc_NtkTestTim( pNtk, fVerbose );
+        if ( !Abc_NtkIsLogic(pNtk) )
+        {
+            Abc_Print( -1, "The current ABC netowrk is not a logic network.\n" );
+            return 1;
+        }
+        Abc_NtkTestPinGia( pNtk, 0, 0 );
     }
 
     return 0;
diff --git a/src/base/abci/abcTim.c b/src/base/abci/abcTim.c
index 35f1186d..1544e1e2 100644
--- a/src/base/abci/abcTim.c
+++ b/src/base/abci/abcTim.c
@@ -142,6 +142,93 @@ int Abc_NtkTestTimNodeStrash( Gia_Man_t * pGia, Abc_Obj_t * pNode )
 }
 
 
+/**Function*************************************************************
+
+  Synopsis    [Derives GIA manager using special pins to denote box boundaries.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Gia_Man_t * Abc_NtkTestPinDeriveGia( Abc_Ntk_t * pNtk, int fWhiteBoxOnly, int fVerbose )
+{
+    Gia_Man_t * pTemp;
+    Gia_Man_t * pGia = NULL;
+    Vec_Ptr_t * vNodes;
+    Abc_Obj_t * pObj, * pFanin;
+    int i, k, iPinLit = 0;
+    // prepare logic network
+    assert( Abc_NtkIsLogic(pNtk) );
+    Abc_NtkToAig( pNtk );
+    // construct GIA
+    Abc_NtkFillTemp( pNtk );
+    pGia = Gia_ManStart( Abc_NtkObjNumMax(pNtk) );
+    Gia_ManHashAlloc( pGia );
+    // create primary inputs
+    Abc_NtkForEachCi( pNtk, pObj, i )
+        pObj->iTemp = Gia_ManAppendCi(pGia);
+    // create internal nodes in a topologic order from white boxes
+    vNodes = Abc_NtkDfs( pNtk, 0 );
+    Vec_PtrForEachEntry( Abc_Obj_t *, vNodes, pObj, i )
+    {
+        // input side
+        if ( !fWhiteBoxOnly || Abc_NodeIsWhiteBox(pObj) )
+        {
+            // create special pintype for this node
+            iPinLit = Gia_ManAppendPinType( pGia, 1 );
+            // create input pins
+            Abc_ObjForEachFanin( pObj, pFanin, k )
+                pFanin->iTemp = Gia_ManAppendAnd( pGia, pFanin->iTemp, iPinLit );
+        }
+        // perform GIA construction
+        pObj->iTemp = Abc_NtkTestTimNodeStrash( pGia, pObj );
+        // output side
+        if ( !fWhiteBoxOnly || Abc_NodeIsWhiteBox(pObj) )
+        {
+            // create special pintype for this node
+            iPinLit = Gia_ManAppendPinType( pGia, 1 );
+            // create output pins
+            pObj->iTemp = Gia_ManAppendAnd( pGia, pObj->iTemp, iPinLit );
+        }
+    }
+    Vec_PtrFree( vNodes );
+    // create primary outputs
+    Abc_NtkForEachCo( pNtk, pObj, i )
+        pObj->iTemp = Gia_ManAppendCo( pGia, Abc_ObjFanin0(pObj)->iTemp );
+    // finalize GIA
+    Gia_ManHashStop( pGia );
+    Gia_ManSetRegNum( pGia, 0 );
+    // clean up GIA
+    pGia = Gia_ManCleanup( pTemp = pGia );
+    Gia_ManStop( pTemp );
+    return pGia;
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Abc_NtkTestPinGia( Abc_Ntk_t * pNtk, int fWhiteBoxOnly, int fVerbose )
+{
+    Gia_Man_t * pGia;
+    char * pFileName = "testpin.aig";
+    pGia = Abc_NtkTestPinDeriveGia( pNtk, fWhiteBoxOnly, fVerbose );
+    Gia_WriteAiger( pGia, pFileName, 0, 0 );
+    Gia_ManStop( pGia );
+    printf( "AIG with pins derived from mapped network \"%s\" was written into file \"%s\".\n", 
+        Abc_NtkName(pNtk), pFileName );
+}
+
 
 /**Function*************************************************************
 
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