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/*
* Copyright (C) 2001-2002 The Exult Team
*
* 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef UCFUNC_H
#define UCFUNC_H
#include <map>
#include <vector>
#include <cstdio>
#include <string>
#include <fstream>
#include "ucc.h"
class UCFuncSet
{
public:
UCFuncSet(unsigned short new_funcid, unsigned short new_num_args, bool new_return_var, const std::string &new_funcname)
: funcid(new_funcid), num_args(new_num_args), return_var(new_return_var), funcname(new_funcname) {};
~UCFuncSet() {};
unsigned short funcid; // the id of the function
unsigned short num_args; // the number of arguments
bool return_var; // if true, the function returns a variable
std::string funcname; // the name of the function, if it has one
};
typedef std::map<unsigned short, UCFuncSet> FuncMap;
typedef std::pair<unsigned short, UCFuncSet> FuncMapPair;
//#define DEBUG_GOTOSET
const unsigned int SIZEOF_USHORT = 2;
class FlagData
{
public:
enum { SETFLAG=false, GETFLAG=true };
/* SETFLAG=UCC_POPF, GETFLAG=UCC_PUSHF */
enum { POP=false, PUSH=true};
FlagData(const long func, const unsigned short offset,
const unsigned short flag, const bool access)
: _func(func), _offset(offset), _flag(flag), _access(access) {};
long func() const { return _func; };
unsigned short offset() const { return _offset; };
unsigned short flag() const { return _flag; };
bool access() const { return _access; };
private:
long _func;
unsigned short _offset;
unsigned short _flag;
bool _access;
};
class SortFlagDataLessFlag
{
public:
bool operator()(const FlagData &fd1, const FlagData &fd2) const
{
return (fd1.flag()<fd2.flag()) ? true :
(fd1.flag()>fd2.flag()) ? false :
(fd1.func()<fd2.func()) ? true :
(fd1.func()>fd2.func()) ? false :
(fd1.offset()<fd2.offset());
};
bool operator()(const FlagData *fd1, const FlagData *fd2) const
{
return (fd1->flag()<fd2->flag()) ? true :
(fd1->flag()>fd2->flag()) ? false :
(fd1->func()<fd2->func()) ? true :
(fd1->func()>fd2->func()) ? false :
(fd1->offset()<fd2->offset());
};
};
class SortFlagDataLessFunc
{
public:
bool operator()(const FlagData &fd1, const FlagData &fd2) const
{
return (fd1.func()<fd2.func()) ? true :
(fd1.func()>fd2.func()) ? false :
(fd1.flag()<fd2.flag()) ? true :
(fd1.flag()>fd2.flag()) ? false :
(fd1.offset()<fd2.offset());
};
bool operator()(const FlagData *fd1, const FlagData *fd2) const
{
return (fd1->func()<fd2->func()) ? true :
(fd1->func()>fd2->func()) ? false :
(fd1->flag()<fd2->flag()) ? true :
(fd1->flag()>fd2->flag()) ? false :
(fd1->offset()<fd2->offset());
};
};
class UCNode;
class UCNode
{
public:
UCNode(UCc *newucc=0) : ucc(newucc) { };
UCNode(std::vector<UCNode *>::iterator beg, std::vector<UCNode *>::iterator end)
: ucc(new UCc()), nodelist(beg, end) { };
~UCNode() { };
UCc *ucc;
std::vector<UCNode *> nodelist;
};
#include "opcodes.h"
class GotoSet
{
public:
GotoSet() : _offset(0) {};
GotoSet(const unsigned int offset, UCc *ucc)
: _offset(offset)
{
add(ucc);
};
GotoSet(UCc *ucc) : _offset(ucc->_offset) { add(ucc); };
std::vector<std::pair<UCc *, bool> > &operator()() { return _uccs; };
UCc &operator[](const unsigned int i) { return *(_uccs[i].first); };
unsigned int size() const { return _uccs.size(); };
void add(UCc *ucc, bool gc=false)
{
_uccs.push_back(std::pair<UCc *, bool>(ucc, gc));
};
/* Just a quick function to remove all the Uccs in _uccs marked for
garbage collection. */
void gc()
{
for(GotoSet::iterator j=_uccs.begin(); j!=_uccs.end();)
{
#ifdef DEBUG_GOTOSET
std::cout << "OP: " << opcode_table_data[j->first->_id].ucs_nmo << '\t' << j->second;
#endif
if(j->second==true)
{
/* ok, we need to take into consideration that the
iterator we're removing might ==_uccs.begin() */
bool begin=false;
if(j==_uccs.begin()) begin=true;
#ifdef DEBUG_GOTOSET
std::cout << "\tremoved";
#endif
GotoSet::iterator rem(j);
if(begin==false) j--;
_uccs.erase(rem);
if(begin==true) j=_uccs.begin();
else j++;
if(j==_uccs.end()) std::cout << "POTENTIAL PROBLEM" << std::endl;
}
else
j++;
#ifdef DEBUG_GOTOSET
std::cout << std::endl;
#endif
}
};
unsigned int offset() const { return _offset; };
typedef std::vector<std::pair<UCc *, bool> >::iterator iterator;
private:
unsigned int _offset;
std::vector<std::pair<UCc *, bool> > _uccs;
};
class UCOpcodeData;
class UCFunc
{
public:
UCFunc() : _offset(0), _funcid(0), _funcsize(0), _bodyoffset(0), _datasize(0),
_codeoffset(0), _num_args(0), _num_locals(0), _num_externs(0),
return_var(false), debugging_info(false), debugging_offset(0) {};
bool output_list(std::ostream &o, unsigned int funcno, const UCOptions &options);
bool output_ucs(std::ostream &o, const FuncMap &funcmap, const std::map<unsigned int, std::string> &intrinsics, const UCOptions &options);
std::ostream &output_ucs_funcname(std::ostream &o, const FuncMap &funcmap,
unsigned int funcid,
unsigned int numargs, bool return_var);
void output_ucs_node(std::ostream &o, const FuncMap &funcmap, UCNode* ucn, const std::map<unsigned int, std::string> &intrinsics, unsigned int indent, const UCOptions &options);
void output_ucs_data(std::ostream &o, const FuncMap &funcmap, const std::map<unsigned int, std::string> &intrinsics, const UCOptions &options, unsigned int indent);
void output_ucs_opcode(std::ostream &o, const FuncMap &funcmap, const std::vector<UCOpcodeData> &optab, const UCc &op, const std::map<unsigned int, std::string> &intrinsics, unsigned int indent);
void parse_ucs(const FuncMap &funcmap, const std::map<unsigned int, std::string> &intrinsics, const UCOptions &options);
void parse_ucs_pass1(std::vector<UCNode *> &nodes);
void parse_ucs_pass2(std::vector<GotoSet> &gotoset, const FuncMap &funcmap, const std::map<unsigned int, std::string> &intrinsics);
std::vector<UCc *> parse_ucs_pass2a(std::vector<std::pair<UCc *, bool> >::reverse_iterator current,
std::vector<std::pair<UCc *, bool> > &vec, unsigned int opsneeded,
const FuncMap &funcmap, const std::map<unsigned int, std::string> &intrinsics);
void parse_ucs_pass3(std::vector<GotoSet> &gotoset, const std::map<unsigned int, std::string> &intrinsics);
bool output_asm(std::ostream &o, const FuncMap &funcmap, const std::map<unsigned int, std::string> &intrinsics, const UCOptions &options);
void output_asm_data(std::ostream &o);
void output_asm_opcode(std::ostream &o, const FuncMap &funcmap, const std::vector<UCOpcodeData> &optab, const std::map<unsigned int, std::string> &intrinsics, const UCc &op, const UCOptions &options);
void output_raw_opcodes(std::ostream &o, const UCc &op);
bool output_tt(std::ostream &o);
// private:
std::vector<GotoSet> gotoset;
std::streampos _offset; // offset to start of function
unsigned short _funcid; // the id of the function
unsigned short _funcsize; // the size of the function (bytes)
std::streampos _bodyoffset; // the file position after the header is read
unsigned short _datasize; // the size of the data block
std::map<unsigned int, std::string, std::less<unsigned int> > _data;
// contains the entire data segment in offset from start of segment, and string data pairs
std::streampos _codeoffset; // the offset to the start of the code segment
unsigned int _num_args; // the number of arguments
unsigned int _num_locals; // the number of local variables
unsigned int _num_externs; // the number of external function id's
std::vector<unsigned short> _externs; // the external function id's
std::vector<UCc> _opcodes;
bool return_var; // does the function return a variable?
bool debugging_info;
unsigned int debugging_offset;
std::string funcname;
unsigned short codesize() const { return _funcsize - _datasize; };
// the following vars are for data compatibility with the original UCFunc
std::vector<FlagData *> _flagcount;
UCNode node;
};
void readbin_U7UCFunc(std::ifstream &f, UCFunc &ucf, const UCOptions &options);
void readbin_U8UCFunc(std::ifstream &f, UCFunc &ucf);
#endif
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