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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia 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.
//
// Nestopia 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 Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#ifndef NST_IO_LINE_H
#define NST_IO_LINE_H
#ifdef NST_PRAGMA_ONCE
#pragma once
#endif
namespace Nes
{
namespace Core
{
namespace Io
{
#ifdef NST_FASTDELEGATE
class Line : public ImplicitBool<Line>
{
class Component {};
typedef void (NST_FASTCALL Component::*Toggler)(Address,Cycle);
Component* component;
Toggler toggler;
NST_COMPILE_ASSERT( sizeof(Toggler) <= sizeof(void (*)(void*,Address,Cycle)) );
public:
Line() {}
template<typename T>
Line(T* c,void (NST_FASTCALL T::*t)(Address,Cycle))
:
component ( reinterpret_cast<Component*>(c) ),
toggler ( reinterpret_cast<Toggler>(t) )
{
NST_COMPILE_ASSERT( sizeof(toggler) == sizeof(t) );
}
template<typename T>
void Set(T* c,void (NST_FASTCALL T::*t)(Address,Cycle))
{
NST_COMPILE_ASSERT( sizeof(toggler) == sizeof(t) );
component = reinterpret_cast<Component*>(c);
toggler = reinterpret_cast<Toggler>(t);
}
void Unset()
{
component = NULL;
toggler = NULL;
}
bool operator ! () const
{
return component == NULL;
}
void Toggle(Address address,Cycle cycle) const
{
(*component.*toggler)( address, cycle );
}
};
#define NES_DECL_LINE(a_) void NST_FASTCALL Line_##a_(Address,Cycle)
#define NES_LINE(o_,a_) void NST_FASTCALL o_::Line_##a_(Address address,Cycle cycle)
#define NES_LINE_T(t_,o_,a_) t_ void NST_FASTCALL o_::Line_##a_(Address address,Cycle cycle)
#else
class Line : public ImplicitBool<Line>
{
typedef void* Component;
typedef void (NST_REGCALL *Toggler)(Component,Address,Cycle);
Component component;
Toggler toggler;
public:
Line() {}
Line(Component c,Toggler t)
:
component ( c ),
toggler ( t )
{}
void Set(Component c,Toggler t)
{
component = c;
toggler = t;
}
void Unset()
{
component = NULL;
toggler = NULL;
}
bool operator ! () const
{
return component == NULL;
}
void Toggle(Address address,Cycle cycle) const
{
toggler( component, address, cycle );
}
};
#define NES_DECL_LINE(a_) \
\
NST_FORCE_INLINE void NST_FASTCALL Line_M_##a_(Address,Cycle); \
static NST_NO_INLINE void NST_REGCALL Line_##a_(void*,Address,Cycle)
#define NES_LINE(o_,a_) \
\
NST_NO_INLINE void NST_REGCALL o_::Line_##a_(void* p_,Address a_,Cycle c_) \
{ \
static_cast<o_*>(p_)->Line_M_##a_(a_,c_); \
} \
\
NST_FORCE_INLINE void NST_FASTCALL o_::Line_M_##a_(Address address,Cycle cycle)
#define NES_LINE_T(t_,o_,a_) \
\
t_ NST_NO_INLINE void NST_REGCALL o_::Line_##a_(void* p_,Address a_,Cycle c_) \
{ \
static_cast<o_*>(p_)->Line_M_##a_(a_,c_); \
} \
\
t_ NST_FORCE_INLINE void NST_FASTCALL o_::Line_M_##a_(Address address,Cycle cycle)
#endif
}
}
}
#endif
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