From 0ce11851bcb364abfd5d65685ab779faed4398ec Mon Sep 17 00:00:00 2001
From: Alan Mishchenko <alanmi@berkeley.edu>
Date: Sun, 16 May 2021 20:33:53 -0700
Subject: Updating LUT synthesis code.

---
 src/base/io/io.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

(limited to 'src/base/io/io.c')

diff --git a/src/base/io/io.c b/src/base/io/io.c
index dec5ee45..5cf74ef9 100644
--- a/src/base/io/io.c
+++ b/src/base/io/io.c
@@ -2982,13 +2982,13 @@ usage:
 ***********************************************************************/
 int IoCommandWriteVerilog( Abc_Frame_t * pAbc, int argc, char **argv )
 {
-    extern void Io_WriteVerilogLut( Abc_Ntk_t * pNtk, char * pFileName, int nLutSize );
+    extern void Io_WriteVerilogLut( Abc_Ntk_t * pNtk, char * pFileName, int nLutSize, int fFixed, int fNoModules );
     char * pFileName;
-    int c, fOnlyAnds = 0;
+    int c, fFixed = 0, fOnlyAnds = 0, fNoModules = 0;
     int nLutSize = -1;
 
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "Kah" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "Kfamh" ) ) != EOF )
     {
         switch ( c )
         {
@@ -3003,9 +3003,15 @@ int IoCommandWriteVerilog( Abc_Frame_t * pAbc, int argc, char **argv )
                 if ( nLutSize < 2 || nLutSize > 6 )
                     goto usage;
                 break;
+            case 'f':
+                fFixed ^= 1;
+                break;
             case 'a':
                 fOnlyAnds ^= 1;
                 break;
+            case 'm':
+                fNoModules ^= 1;
+                break;
             case 'h':
                 goto usage;
             default:
@@ -3019,6 +3025,8 @@ int IoCommandWriteVerilog( Abc_Frame_t * pAbc, int argc, char **argv )
     }
     if ( argc != globalUtilOptind + 1 )
         goto usage;
+    if ( fFixed )
+        nLutSize = 6;
     // get the output file name
     pFileName = argv[globalUtilOptind];
     // call the corresponding file writer
@@ -3031,16 +3039,18 @@ int IoCommandWriteVerilog( Abc_Frame_t * pAbc, int argc, char **argv )
         Abc_NtkDelete( pNtkTemp );
     }
     else if ( nLutSize >= 2 && nLutSize <= 6 )
-        Io_WriteVerilogLut( pAbc->pNtkCur, pFileName, nLutSize );
+        Io_WriteVerilogLut( pAbc->pNtkCur, pFileName, nLutSize, fFixed, fNoModules );
     else
         Io_Write( pAbc->pNtkCur, pFileName, IO_FILE_VERILOG );
     return 0;
 
 usage:
-    fprintf( pAbc->Err, "usage: write_verilog [-K num] [-ah] <file>\n" );
+    fprintf( pAbc->Err, "usage: write_verilog [-K num] [-famh] <file>\n" );
     fprintf( pAbc->Err, "\t         writes the current network in Verilog format\n" );
     fprintf( pAbc->Err, "\t-K num : write the network using instances of K-LUTs (2 <= K <= 6) [default = not used]\n" );
+    fprintf( pAbc->Err, "\t-f     : toggle using fixed format [default = %s]\n", fFixed? "yes":"no" );
     fprintf( pAbc->Err, "\t-a     : toggle writing expressions with only ANDs (without XORs and MUXes) [default = %s]\n", fOnlyAnds? "yes":"no" );
+    fprintf( pAbc->Err, "\t-m     : toggle writing additional modules [default = %s]\n", !fNoModules? "yes":"no" );
     fprintf( pAbc->Err, "\t-h     : print the help massage\n" );
     fprintf( pAbc->Err, "\tfile   : the name of the file to write\n" );
     return 1;
-- 
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