vlog95 - Add output file code and basic header.

tgt-vlog95/Makefile.in

@@ -34,7 +34,7 @@ INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_DATA = @INSTALL_DATA@
 
-CPPFLAGS = -I.. -I$(srcdir)/.. -I$(srcdir) @CPPFLAGS@ @DEFS@ @PICFLAG@
+CPPFLAGS = -I. -I.. -I$(srcdir)/.. -I$(srcdir) @CPPFLAGS@ @DEFS@ @PICFLAG@
 CFLAGS = -Wall @CFLAGS@
 LDFLAGS = @LDFLAGS@
 
@@ -51,7 +51,7 @@ dep:
 
 O = vlog95.o
 
-ifeq (@CYGWIN@,yes)
+ifeq (@WIN32@,yes)
   TGTLDFLAGS=-L.. -livl
   TGTDEPLIBS=../libivl.a
 else

tgt-vlog95/vlog95.c

@@ -24,8 +24,8 @@
 # include "version_base.h"
 # include "version_tag.h"
 # include "config.h"
-# include  "ivl_target.h"
-# include  <string.h>
+# include "vlog95_priv.h"
+# include <string.h>
 
 static const char*version_string =
 "Icarus Verilog VLOG95 Code Generator " VERSION " (" VERSION_TAG ")\n\n"
@@ -43,17 +43,39 @@ static const char*version_string =
 "  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n"
 ;
 
+FILE*vlog_out;
+int vlog_errors = 0;
 
 int target_design(ivl_design_t des)
 {
-      return 0;
+      const char*path = ivl_design_flag(des, "-o");
+      assert(path);
+
+#ifdef HAVE_FOPEN64
+      vlog_out = fopen64(path, "w");
+#else
+      vlog_out = fopen(path, "w");
+#endif
+      if (vlog_out == 0) {
+	    perror(path);
+	    return -1;
+      }
+
+      fprintf(vlog_out, "/*\n");
+      fprintf(vlog_out, " * 1364-1995 Verilog generated by Icarus Verilog "
+                        "VLOG95 Code Generator,\n");
+      fprintf(vlog_out, " * Version: " VERSION " (" VERSION_TAG ")\n");
+      fprintf(vlog_out, " */\n");
+
+      fclose(vlog_out);
+
+      return vlog_errors;
 }
 
 
 const char* target_query(const char*key)
 {
-      if (strcmp(key,"version") == 0)
-	    return version_string;
+      if (strcmp(key,"version") == 0) return version_string;
 
       return 0;
 }

tgt-vlog95/vlog95_priv.h

@@ -0,0 +1,41 @@
+#ifndef __vlog95_priv_H
+#define __vlog95_priv_H
+/*
+ * Copyright (C) 2010 Cary R. (cygcary@yahoo.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it 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.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *
+ * This is the vlog95 target module. It generates a 1364-1995 compliant
+ * netlist from the input netlist. The generated netlist is expected to
+ * be simulation equivalent to the original.
+ */
+
+# include "config.h"
+# include "ivl_target.h"
+# include <stdio.h>
+# include <assert.h>
+
+/*
+ * This is the file that the converted design is written to.
+ */
+extern FILE*vlog_out;
+
+/*
+ * Keep a count of the fatal errors that happen during code generation.
+ */
+extern int vlog_errors;
+
+#endif /* __vlog95_priv_H */