71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
#ifndef __netstruct_H
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#define __netstruct_H
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/*
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* Copyright (c) 2011 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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# include "LineInfo.h"
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# include <vector>
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# include "ivl_target.h"
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class netstruct_t : public LineInfo {
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public:
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struct member_t {
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perm_string name;
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ivl_variable_type_t type;
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long msb;
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long lsb;
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long width() const;
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};
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public:
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netstruct_t();
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~netstruct_t();
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void packed(bool flag);
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bool packed(void) const;
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void append_member(const member_t&);
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// Given the name of a member, return a pointer to the member
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// description, and set the off value to be the offset into
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// the packed value where the member begins.
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const struct member_t* packed_member(perm_string name, unsigned long&off) const;
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// Return the width (in bits) of the packed record, or -1 if
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// the record is not packed.
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long packed_width() const;
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private:
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bool packed_;
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std::vector<member_t>members_;
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};
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inline bool netstruct_t::packed(void) const { return packed_; }
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inline long netstruct_t::member_t::width() const
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{
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if (msb >= lsb)
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return msb - lsb + 1;
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else
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return lsb - msb + 1;
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}
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#endif
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