verilator/src/V3Global.h
2010-01-17 15:10:37 -05:00

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// -*- C++ -*-
//*************************************************************************
// DESCRIPTION: Verilator: Common headers
//
// Code available from: http://www.veripool.org/verilator
//
// AUTHORS: Wilson Snyder with Paul Wasson, Duane Gabli
//
//*************************************************************************
//
// Copyright 2003-2010 by Wilson Snyder. This program is free software; you can
// redistribute it and/or modify it under the terms of either the GNU
// Lesser General Public License Version 3 or the Perl Artistic License
// Version 2.0.
//
// Verilator 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.
//
//*************************************************************************
#ifndef _V3GLOBAL_H_
#define _V3GLOBAL_H_ 1
#include "config_build.h"
#include "verilatedos.h"
#include <string>
#include "V3Error.h"
#include "V3Options.h"
#include "V3Ast.h"
//======================================================================
// Statics
//######################################################################
// V3 - The top level class for the entire program
class V3Global {
// Globals
AstNetlist* m_rootp; // Root of entire netlist
int m_debugFileNumber; // Number to append to debug files created
bool m_assertWidthsSame; // Tree should have width()==widthMin()
bool m_needHInlines; // Need __Inlines file
bool m_needHeavy; // Need verilatedheavy.h include
bool m_dpi; // Need __Dpi include files
public:
// Options
V3Options opt; // All options; let user see them directly
public:
// CREATORS
V3Global() {
m_rootp = new AstNetlist;
m_debugFileNumber = 0;
m_assertWidthsSame = false;
m_needHInlines = false;
m_needHeavy = false;
m_dpi = false;
}
void clear() {
if (m_rootp) m_rootp->deleteTree(); m_rootp=NULL;
}
// ACCESSORS (general)
AstNetlist* rootp() const { return m_rootp; }
bool assertWidthsSame() const { return m_assertWidthsSame; }
// METHODS
void readFiles();
void checkTree() { rootp()->checkTree(); }
void assertWidthsSame(bool flag) { m_assertWidthsSame = flag; }
string debugFilename(const string& nameComment, int newNumber=0) {
++m_debugFileNumber;
if (newNumber) m_debugFileNumber = newNumber;
char digits[100]; sprintf(digits, "%02d", m_debugFileNumber);
return opt.makeDir()+"/"+opt.prefix()+"_"+digits+"_"+nameComment;
}
bool needHInlines() const { return m_needHInlines; }
void needHInlines(bool flag) { m_needHInlines=flag; }
bool needHeavy() const { return m_needHeavy; }
void needHeavy(bool flag) { m_needHeavy=flag; }
bool dpi() const { return m_dpi; }
void dpi(bool flag) { m_dpi = flag; }
};
extern V3Global v3Global;
//######################################################################
#endif // guard