93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
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#ifndef __PGenerate_H
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#define __PGenerate_H
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/*
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* Copyright (c) 2006 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CVS_IDENT
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#ident "$Id: PGenerate.h,v 1.1 2006/04/10 02:40:18 steve Exp $"
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#endif
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# include "LineInfo.h"
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# include "StringHeap.h"
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# include "HName.h"
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# include <list>
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# include <map>
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class Design;
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class NetScope;
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class PExpr;
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class PGate;
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class PWire;
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/*
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* This represents a generate scheme.
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*/
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class PGenerate : public LineInfo {
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public:
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PGenerate(unsigned id_number);
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~PGenerate();
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// Generate schemes have an ID number, for when the scope is
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// implicit.
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const unsigned id_number;
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perm_string scope_name;
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enum scheme_t {GS_NONE, GS_LOOP, GS_CONDIT};
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scheme_t scheme_type;
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// generate loops have an index variable and three
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// expressions: for (index = <init>; <test>; index=<step>)
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perm_string loop_index;
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PExpr*loop_init;
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PExpr*loop_test;
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PExpr*loop_step;
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map<hname_t,PWire*>wires;
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PWire* add_wire(PWire*);
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PWire* get_wire(const hname_t&name) const;
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list<PGate*> gates;
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void add_gate(PGate*);
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// This method is called by the elaboration of a module to
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// generate scopes. the container is the scope that is to
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// contain the generated scope.
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bool generate_scope(Design*des, NetScope*container);
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bool elaborate_sig(Design*des) const;
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bool elaborate(Design*des) const;
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void dump(ostream&out) const;
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private:
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bool generate_scope_loop_(Design*des, NetScope*container);
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// These are the scopes created by generate_scope.
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list<NetScope*>scope_list_;
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// internal function called on each scope generated by this scheme.
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bool elaborate_sig_(Design*des, NetScope*scope) const;
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bool elaborate_(Design*des, NetScope*scope) const;
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private: // not implemented
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PGenerate(const PGenerate&);
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PGenerate& operator= (const PGenerate&);
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};
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#endif
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